TWI489366B - Resistance type touch display panel - Google Patents

Description

Resistive touch display panel

The present invention relates to a display panel, and more particularly to a resistive touch display panel (Resistance Type Touch Display Panel).

With the rapid development and application of information technology, wireless mobile communication and information appliances, in order to achieve more convenient carrying, lighter weight and more user-friendly operation, many information products have been input devices such as traditional keyboards or mice. Switching to using a touch panel as an input device.

Currently, touch panels can be roughly classified into resistive, capacitive, optical, acoustic, and electromagnetic touch panels. Among them, resistive touch panels and capacitive touch panels are the most common products. In the case of a resistive touch panel, no matter which medium the user touches the touch panel, the operation can be performed, thereby improving the convenience of use of the touch panel. In addition, the resistive touch panel requires lower cost and the resistive touch panel technology is more mature, so the market share is higher.

FIG. 1A is a schematic top view of a conventional resistive touch display panel, and FIG. 1B is a cross-sectional view of the resistive touch display panel along the line I ₁ -I ₁ '. Referring to FIG. 1A and FIG. 1B , the conventional resistive touch display panel 100 includes a first array substrate 200 and a second array substrate 300 . The first array substrate 200 includes a plurality of scan lines 210, a plurality of data lines 220, a plurality of sub-pixel units 230, and a plurality of touch units 240, and the plurality of sub-pixel units 230 are combined into one pixel unit (not labeled). Each sub-pixel unit 230 includes a thin film transistor 232 and a pixel electrode 234. As shown in FIG. 1A, the gate of the thin film transistor 232 in each sub-pixel unit 230 is electrically connected to one of the scan lines 210 and one of the sources of the thin film transistor 232 in each sub-pixel unit 230. 220 is electrically connected, and the pixel electrode 234 is electrically connected to the cathode of the thin film transistor 232 in each sub-pixel unit 230. When a high voltage is applied to the scan line 210, the thin film transistor 232 is turned on, and the image data can be written to the pixel electrode 234 via the data line 220 and the thin film transistor 232.

1A and FIG. 1B , the touch unit 240 includes a first sub-touch unit 242 , a second sub-touch unit 244 , a first touch signal transmission line 246 , and a second touch signal transmission line 248 . The first sub-touch unit 242 has a first reference voltage V ₁ and is electrically connected to the first touch signal transmission wire 246 . The second sub-touch unit 244 has a second reference voltage V ₂ and is electrically connected to the second touch signal transmission line 248 . In addition, the first sub-touch unit 242 and the second sub-touch unit 244 are located in the same sub-pixel unit, and the two sub-touch units 242 and 244 are separated and insulated from each other.

The second array substrate 300 is disposed above the first array substrate 200 and has a plurality of touch bumps 320 and a common electrode 330 . The common electrode 330 covers the touch bump 320 and the substrate 330 , wherein the first reference voltage V ₁ and the second reference voltage V _{2 are} different from the voltage V _{3 of the} common electrode 330 . Therefore, when the user touches the resistive touch display panel 100, the common electrode 330 covering the touch bump 320 contacts the corresponding first touch unit 242 and the second touch unit 244, so that the user touches the corresponding touch unit 242 and the second touch unit 244. The voltages of the first touch unit 242 and the second touch unit 244 are changed. That is, the voltage of the first touch unit 242 changes from the reference voltage V ₁ to the same voltage V ₃ as the common electrode 330 , and the voltage of the second touch unit 244 changes from the reference voltage V ₂ to the common electrode. 330 the same voltage V ₃ . Then, through the first touch signal transmission wire 246 and the second touch signal transmission wire 248, the first touch signal readout circuit 252 and the second touch signal readout circuit 254 can respectively calculate the touch point x. Coordinates and y coordinates.

However, since the first touch unit 242 and the second touch unit 244 must simultaneously contact the common electrode 330 under the touch bump 320, the first touch signal readout circuit 252 and the second touch signal readout circuit 254 The x coordinate and the y coordinate of the touch point can be distinguished. Therefore, when the touch bump 320 is slightly misaligned with the first touch unit 242 or the second touch unit 244, the x coordinate or the y coordinate of the touch point is very It is easy to be read. In addition, since the touch area of the touch bump 320 is not large, the resistive touch display panel 100 is often damaged due to uneven distribution of the touch pressure in the case of long-term use.

The present invention provides a resistive touch display panel, wherein the touch unit includes a plurality of first sub-touch units electrically connected to each other and a plurality of second sub-touch units electrically connected to each other, which can improve resistive touch Control the touch sensitivity and touch area of the display panel.

The invention provides a resistive touch display panel comprising a first array substrate and a second array substrate. The first array substrate includes a plurality of scan lines, a plurality of data lines, a plurality of sub-pixel units, and a plurality of touch units. The scan line and the data line define a plurality of sub-pixel regions on the first array substrate, and each sub-pixel unit is located in the sub-pixel region, and one of the scan lines and one of the data lines are electrically connected. connection. The touch unit includes a plurality of first sub-touch units, a plurality of second sub-touch units, a first touch signal transmission line, and a second touch signal transmission line, and the first sub-touch unit and the second sub-touch The control unit is distributed in at least two sub-pixel regions. The first touch signal transmission wire is electrically connected to all the first sub-touch units in the same touch unit, and the second touch signal transmission line is simultaneously electrically connected to all the second sub-touch units in the same touch unit. Sexual connection. In addition, the second array substrate is disposed above the first array substrate, and includes a plurality of spacers supported between the first array substrate and the second array substrate, a plurality of touch bumps, and a common electrode. The common electrode covers the touch bumps. Each of the touch bumps is located above one of the first sub-touch units or one of the second sub-touch units, and a gap is maintained between the common electrode on each of the touch bumps and the touch unit.

In an embodiment of the invention, the sub-pixel unit includes a thin film transistor and a pixel electrode. The thin film transistor is electrically connected to one of the scan lines and one of the data lines, and the pixel electrode is electrically connected to the thin film transistor.

In an embodiment of the invention, the voltage level of the first sub-touch unit is a first reference voltage, and the voltage level of the second sub-touch unit is a second reference voltage. The first reference voltage is different from the voltage level of the common electrode, and the second reference voltage is different from the voltage level of the common electrode.

In an embodiment of the invention, the first sub-touch unit includes a first touch pad and a first conductive layer. The first touch pad is disposed under one of the touch bumps. The first conductive layer is disposed under the first touch pad, wherein the first conductive layer is electrically connected to the first touch pad.

In an embodiment of the invention, the second sub-touch unit includes a second touch pad and a second conductive layer. The second touch pad is disposed under one of the touch bumps. The second conductive layer is disposed under the second touch pad, wherein the second conductive layer is electrically connected to the second touch pad.

In an embodiment of the invention, the second array substrate comprises a color filter substrate.

In an embodiment of the invention, the first touch signal transmission wire and the touch signal transmission wire extend from different sub-pixel regions to the peripheral region of the first array substrate, respectively.

In one embodiment of the invention, the resistive touch display panel further includes a first touch signal readout circuit and a second touch signal readout circuit. The first touch signal readout circuit is electrically connected to each of the first touch signal transmission wires to determine a voltage level change of each of the first touch signal transmission wires. The second touch signal readout circuit is electrically connected to each of the second touch signal transmission wires to determine a voltage level change of each of the second touch signal transmission wires.

In an embodiment of the invention, the first touch signal readout circuit and the second touch signal readout circuit are disposed on the peripheral area.

In an embodiment of the invention, the common electrode covers the touch bumps and the spacers.

In an embodiment of the invention, the common electrode does not cover the spacers.

Based on the above, the resistive touch display panel of the present invention includes a plurality of first sub-touch units connected to the first signal transmission wires and a plurality of second sub-touch units connected to the second signal transmission lines. Increase the touch sensitivity and touch area of the resistive touch display panel.

The above described features and advantages of the present invention will be more apparent from the following description.

First embodiment

2A is a top plan view of the resistive touch display panel 400 according to the first embodiment of the present invention, and FIG. 2B is a cross-sectional view of the resistive touch display panel 400 of FIG. 2A along the line I ₂ -I ₂ '. Referring to FIG. 2A and FIG. 2B , the resistive touch display panel 400 includes a first array substrate 500 and a second array substrate 600 . The second array substrate 600 is disposed above the first array substrate 500. In addition, the first array substrate 500 includes a plurality of scan lines 510 , a plurality of data lines 520 , a plurality of sub-pixel units 530 , and a plurality of touch units 540 , wherein the scan lines 510 and the data lines 520 are defined on the first array substrate 500 . A plurality of sub-pixel areas A are output. On the other hand, in this embodiment, at least three sub-pixel regions A are regarded as one pixel region (not shown), but are not limited thereto, and may be one, two, four, five, or six or more children. The pixel area A is treated as a pixel area (not shown).

As shown in FIG. 2A, each sub-pixel unit 530 is located in one of the sub-pixel regions A, and is electrically connected to one of the scan lines 510 and one of the data lines 520. In detail, each sub-pixel unit 530 includes a thin film transistor 532 and a pixel electrode 534. The gate and the source of the thin film transistor 532 are electrically connected to one of the scan lines 510 and one of the data lines 520, respectively, and the pixel electrode 534 is electrically connected to the cathode of the thin film transistor 532. Therefore, when a high voltage is applied to the scan line 510, the thin film transistor 532 is turned on, and the image data can be written to the pixel electrode 534 via the data line 520 and the thin film transistor 532. On the other hand, the resistive touch display panel 400 further includes a plurality of common wires 550, wherein each of the common wires 550 includes a plurality of branches (not labeled), and each branch extends to both sides of the pixel electrode 534 and parallel data. Lines 520 are arranged. As a result, a storage capacitor can be generated between the common wiring 550 and the pixel electrode 534 to maintain the voltage of the pixel electrode 534 and to increase the aperture ratio of the pixel electrode 534.

Preferably, the branches (not labeled) are different from the scan line 510 (or referred to as the first patterned conductive layer), the data line 520 (or referred to as the second patterned conductive layer), and the layer of the pixel electrode 534. However, these branches (not shown) are still connected to each common wiring 550. In other embodiments, these branches (not labeled) are the same layer as scan line 510 or data line 520, but these branches (not labeled) are still separated from and insulated from data line 520 or scan line 510, depending on design considerations. And still connected to each shared wiring 550.

On the other hand, the naming manner of the first conductive layer of the pixel electrode 534 differs depending on the film layer where the plurality of branches (not shown) are located. For example, when a branch (not labeled) is different from the scan line 510 (or referred to as a first patterned conductive layer), the data line 520 (or referred to as a second patterned conductive layer), and the layer of the pixel electrode 534, The branch (not labeled) may be referred to as a third patterned conductive layer, and the pixel electrode 534 may be referred to as a fourth patterned conductive layer; when the branch (not labeled) is the same as the scan line 510 (or referred to as the first The pixel electrode 534 may be referred to as a third patterned conductive layer when the patterned conductive layer or the layer of the data line 520 (or referred to as the second patterned conductive layer).

In addition, in the embodiment, the thin film transistor 532 is, for example, an amorphous germanium thin film transistor, a low temperature polycrystalline germanium thin film transistor, an organic germanium thin film transistor, a transparent oxide semiconductor thin film transistor, or other kinds of thin film transistors, but not This is limited to other types of thin film transistors depending on the design. On the other hand, the material of the pixel electrode 534 may be Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), Aluminium Zinc Oxide (AZO), or other transparent The conductive material, or the single layer or multi-layer structure described above, but not limited thereto, may be matched with other types of materials depending on the design.

Referring to FIG. 2A , in the embodiment, the touch unit 540 includes a plurality of first sub-touch units 542 , a plurality of second sub-touch units 544 , a first touch signal transmission line 546 , and a second touch Signal transmission wire 548. As shown in FIG. 2A, the first touch signal transmission wire 546 and the second touch signal transmission wire 548 respectively extend from different sub-pixel regions 530 to the peripheral region B of the first array substrate 500. In detail, the first touch signal transmission line 546 passes through the rightmost sub-pixel area A in FIG. 2A and substantially parallels the data line 520 of the corresponding sub-pixel area A. On the other hand, the second touch signal transmission wires 548 respectively pass through the three sub-pixel regions on the right side in FIG. 2A and the three sub-pixel regions on the left side. In addition, the second touch signal transmission wires 548 are substantially parallel to one of the scan lines 510 and are alternately arranged with the data lines 520 and the first touch signal transmission wires 546.

In addition, in the embodiment, the resistive touch display panel 400 further includes a first touch signal readout circuit 552 and a second touch signal readout circuit 554 disposed in the peripheral area B. The first touch signal readout circuit 552 is electrically connected to each of the first touch signal transmission wires 546 to determine the voltage level change of the first touch signal transmission wire 546. The second touch signal readout circuit 554 is electrically connected to each of the second touch signal transmission wires 548 to determine the voltage level change of the second touch signal transmission wire 548.

It is to be noted that the first touch signal transmission wires 546 are electrically connected to all the first sub-touch units 542 in the same touch unit 540, and the second touch signal transmission wires 548 are simultaneously connected to the same touch unit 540. All of the second sub-touch units 544 are electrically connected. In addition, the first sub-touch unit 542 and the second sub-touch unit 544 respectively correspond to the sub-pixel regions A of different pixel regions (not labeled). Therefore, as long as the voltage level of any of the first sub-touch units 542 in the same touch unit 540 changes, the voltage level of the first touch signal transmission line 546 changes, thereby causing the first touch signal. The readout circuit 552 can determine the voltage level change of the first touch signal transmission line 546. Similarly, as long as the voltage level of any one of the second sub-touch units 544 in the same touch unit 540 changes, the voltage level of the second touch signal transmission line 548 will change, thereby causing the second touch signal. The readout circuit 554 can determine the voltage level change of the second touch signal transmission line 548.

In addition, the first sub-touch unit 542 and the second sub-touch unit 544 are respectively distributed in at least two different sub-pixel regions A (for example, FIG. 2A schematically illustrates the first sub-touch unit 542 and the second sub-touch The control unit 544 is distributed in the case of the three sub-pixel regions. Therefore, the resistive touch display panel 400 has more sensing points for sensing whether the voltage level changes than the conventional resistive touch display panel 100. The first touch sub-touch unit 542 and the second touch sub-touch unit 544 of FIG. 2A can further improve the touch sensitivity of the resistive touch display panel 400.

Referring to FIG. 2A and FIG. 2B simultaneously, in the embodiment, the second array substrate 600 is disposed above the first array substrate 500, and the second array substrate 600 includes a plurality of supports on the first array substrate 500 and the second A spacer 610 between the array substrates 600, a plurality of touch bumps 620, and a common electrode 630. The common electrode 630 covers the touch bump 620 and the spacer 610 . It should be noted that in other embodiments, the common electrode 630 may not cover the spacer 610. For example, the spacer 610 may be formed over the common electrode 630. In detail, the upper surface of the spacer 610 or the upper and side surfaces thereof may not have the common electrode 630. On the other hand, each of the touch bumps 620 is located above one of the first sub-touch units 542, and a gap is maintained between the common electrode 630 on each touch bump 620 and the first sub-touch unit 542. G. In addition, in this embodiment, the voltage level of the first sub-touch unit 542 is the first reference voltage V ₄ and is different from the voltage V _{5 of the} common electrode 630.

In general, the main purpose of the spacers 610 is to enable the first array substrate 500 and the second array substrate 600 to maintain a certain pitch. The spacer 610 is, for example, a Stick Type Spacer, a Ball-Type Spacer, or a Post Type Spacer. In the present embodiment, FIG. 2B The spacer 610 is shown as a columnar spacer.

It is worth mentioning that the second array substrate 600 can optionally include a color filter substrate 640. As shown in FIG. 2B, the color filter substrate 640 of the present embodiment mainly includes a black matrix 642 and a plurality of color filters 644, wherein the color filters 644 are colored in different colors such as red, green, or blue. Filter film. In addition, the spacer 610 is located on the black matrix 642 , for example, and the common electrode 630 covers the spacer 610 , the touch bump 620 , and the black matrix 640 . In other embodiments, the common electrode 630 covers the spacer 610 or not, as described in the previous description.

In addition, the first sub-touch unit 542 of the embodiment further includes a first touch pad 542a and a first conductive layer 542b. The first touch pad 542a is disposed under one of the touch bumps 630. The first conductive layer 542b is disposed under the first touch pad 542a and electrically connected to the first touch pad 542a. In this embodiment, the first touch pad 542a is, for example, an indium tin oxide layer on the insulating layer (or referred to as a protective layer) PV, and the first conductive layer 542b is formed on the gate insulating layer GI to form a thin film. a second metal layer of the source and the drain of the crystal (not shown). In addition, in this embodiment, a plurality of holes are formed above the first conductive layer 542b, so that a plurality of holes in the insulating layer PV expose a plurality of portions of the first conductive layer 542b. However, when the insulating layer PV has only one hole to expose a portion of the first conductive layer 542b, the hole is positioned closer to the first touch signal transmission line 546 to provide a more stable touch pressure difference.

In short, when the user touches the resistive touch display panel 400, the spacer 610 is deformed by an external force, thereby locally shortening the spacing between the first array substrate 500 and the second array substrate 600, so as to cover The common electrode 630 on the touch bump 620 contacts the corresponding first touch pad 542a, thereby changing the voltage of the first touch pad 542a. In detail, the voltage of the first touch pad 542a changes from the reference voltage V ₄ to the same voltage V ₅ as the common electrode 630. Then, the first touch signal readout circuit 552 (shown in FIG. 2A) can determine the voltage level change of the first touch signal transmission wire 546, and then calculate the x coordinate of the touch contact.

2C is a cross-sectional view of the resistive touch display panel of FIG. 2A along the line I ₃ -I ₃ '. 2B is similar to FIG. 2C , but the main difference between the two is that FIG. 2B is a schematic cross-sectional view of the first sub-touch unit 542, and FIG. 2C is a second sub-touch unit 544. Schematic diagram of the section. As shown in FIG. 2C, the second sub-touch unit 544 further includes a second touch pad 544a and a second conductive layer 544b. The present embodiment is exemplified by a plurality of holes (or contact windows) above the plurality of second conductive layers 544b. That is, the insulating layer PV on the second conductive layer 544b of the present embodiment has a plurality of holes to expose a plurality of portions of the second conductive layer 544b. However, when the insulating layer PV has only one hole, one of the second conductive layers 544b may be arbitrarily selected to expose a portion of the first conductive layer 542b.

2C, the second touch pad 544a is disposed under one of the touch bumps 620 and maintains a spacing G from the common electrode 630 overlying the touch bumps 620. The second conductive layer 544b is disposed under the second touch pad 544a and electrically connected to the second touch pad 544a. The voltage level of the second sub-touch unit 544 is the second reference voltage V ₆ and is different from the voltage V _{5 of the} common electrode 630 . In addition, in the embodiment, the second touch pad 544a is, for example, an indium tin oxide layer on the insulating layer PV, and the second conductive layer 544b is located on the first array substrate 500, for example, forming a thin film transistor. a first metal layer (not shown) of a gate (not shown).

Similarly, when the user touches the resistive touch display panel 400, the common electrode 630 covering the touch bump 620 also contacts the corresponding second touch pad 544a, so that the second touch pad The voltage at 544a changes. In detail, the voltage of the second touch pad 544a changes from the reference voltage V ₆ to the same voltage V ₅ as the common electrode 630. Then, the second touch signal readout circuit 554 (shown in FIG. 2A) can determine the voltage level change of the second touch signal transmission wire 548, and then calculate the y coordinate of the touch contact. Based on the above, the first touch signal readout circuit 552 and the second touch signal readout circuit 554 can determine the touch contact by the voltage level changes of the first touch pad 542a and the second touch pad 544a. The (x, y) coordinates, which in turn calculate the position of the touch point.

In addition, since the plurality of first sub-touch units 542 and the plurality of second sub-touch units 544 of the resistive touch display panel 400 of the present invention are respectively distributed in a plurality of different sub-pixel regions A, the user is When the resistive touch display panel 400 is touched, the number of the first touch pads 542a and the second touch pads 544a corresponding to the common electrodes 330 covering the touch bumps 620 is also increased, thereby making the resistive type The touch display panel 400 has better sensitivity. In other words, the same (x, y) coordinate can be used to induce a voltage level change by the plurality of first sub-touch units 542 and the second sub-touch unit 544, so that the resistive touch display panel 400 can be Better sensitivity. In addition, as the number of the first touch pad 544a and the second touch pad 544b increases, the touch pressure of the resistive touch display panel 400 is also evenly dispersed, thereby making the resistive touch display panel 400 The durability is increased and the service life can be extended. FIG. 3 is another top plan view of the resistive touch display panel 400 according to the first embodiment of the present invention. As shown in FIG. 3, each first sub-touch unit 542 corresponds to a sub-pixel area C ₁ , and at least three sub-pixel areas C ₁ form a pixel area C. In addition, each of the second sub-touch units 544 corresponds to one sub-pixel area D ₁ , and at least three sub-pixel areas D ₁ form a pixel area D. On the other hand, each of the first touch on _a sub-pixel regions C pad 544a, the second touch pad 544b on D ₁ of at least three corresponding contact window (contact hole) h, but is not limited thereto. For other embodiments, reference may also be made to the previous description.

It should be noted that, in this embodiment, the area D and the area D are not adjacent to each other, and the area C and the area C are also not adjacent to each other. Instead, the area C and the area D are staggered. In addition, the first sub-touch unit 542 in the different area C is electrically connected to the same first touch signal readout circuit 552 through the corresponding first touch signal transmission wire 546, and the second in the different area D. The sub-touch unit 544 is electrically connected to the same second touch signal readout circuit 554 through the corresponding second touch signal transmission wire 548.

On the other hand, in the other embodiments, the first sub-touch unit 542 in the different area C is electrically connected to the different first touch signal readout circuit 552 through the corresponding first touch signal transmission line 546. The second sub-touch unit 544 in the different area D is electrically connected to the different second touch signal readout circuit 554 through the corresponding second touch signal transmission line 548. In this way, the first touch signal readout circuit 552 and the second touch signal readout circuit 554 can determine the voltage level changes of the first touch signal transmission wire 546 and the second touch signal transmission wire 548, respectively. In turn, the (x, y) coordinates of the touch point are calculated.

In the following embodiments and the drawings, the same or similar reference numerals are used to refer to the same or similar elements.

Second embodiment

FIG. 4 is a top plan view of a resistive touch display panel 700 according to a second embodiment of the present invention. The resistive touch display panel 700 is similar to the resistive touch display panel 400, but the main difference between the two is that the arrangement of the area C and the area D is different. As shown in FIG. 4, both the area C and the area D are arranged in a specific direction, for example, the x direction, and the area C and the area D are arranged in an arrangement. It should be noted that in the present embodiment, the regions C and D are aligned in the x direction, but in other embodiments, the regions C and D may be arranged in a row in the y direction.

Third embodiment

FIG. 5 is a schematic top plan view of a resistive touch display panel 800 according to a third embodiment of the present invention. The resistive touch display panel 800 is similar to the resistive touch display panel 400, but the main difference between the two is that each sub-pixel area C ₁ corresponds to one contact window h, and each pixel area D corresponds to each. A contact window h.

Fourth embodiment

FIG. 6 is a schematic top plan view of a resistive touch display panel 900 according to a fourth embodiment of the present invention. The resistive touch display panel 800 is similar to the resistive touch display panel 400. The main difference between the two is that the first touch pad 542a and the second touch pad 544a of the present embodiment have a top view shape and a resistive touch. The shape of the control panel 400 is different in plan view. As shown in FIG. 6 , in a staggered manner between the first touch pad 542 a and the data line 520 , the top shape of the first touch pad 542 a has a necked portion to reduce the first touch pad 542 a and the data line 520 . Parasitic capacitance. Similarly, in the intersection of the second touch pad 544a and the data line 520, the top shape of the second touch pad 544a also has a necked portion to reduce the stray capacitance of the second touch pad 544a and the data line 520.

In summary, the resistive touch display panel of the embodiment of the present invention has a plurality of sub-touch units, so that the sensitivity of the resistive touch display panel can be increased, and the number of sub-touch units increases. The touch pressure on the resistive touch display panel can be dispersed, thereby extending the service life of the resistive touch display panel.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100, 400, 700, 800, 900. . . Resistive touch display panel

200, 500. . . First array substrate

210, 510. . . Scanning line

220, 520. . . Data line

230, 530. . . Subpixel unit

232, 532. . . Thin film transistor

234, 534. . . Pixel electrode

240, 540. . . Touch unit

242, 542. . . First sub-touch unit

244, 544. . . Second sub-touch unit

246, 546. . . First touch signal transmission wire

248, 548. . . Second touch signal transmission wire

252, 552. . . First touch signal readout circuit

254, 554. . . Second touch signal readout circuit

550. . . Shared wiring

300, 600. . . Second array substrate

320, 620. . . Touch bump

330, 630. . . Common electrode

542a. . . First touch pad

542b. . . First conductive layer

544a. . . Second touch pad

544b. . . Second conductive layer

610. . . Interstitial

640. . . Color filter substrate

642. . . Black matrix

644. . . Color filter

GI. . . Gate insulation

PV. . . Insulation

A, C ₁ , D ₁ . . . Subpixel area

B. . . Surrounding area

C, D. . . Pixel region

G. . . gap

V ₁ , V ₄ . . . First reference voltage

V ₂ , V ₆ . . . Second reference voltage

V ₃ , V ₅ . . . Common electrode voltage

FIG. 1A is a schematic top view of a conventional resistive touch display panel.

FIG. 1B is a cross-sectional view of the resistive touch display panel along the line I ₁ -I ₁ '.

2A is a top plan view of a resistive touch display panel according to a first embodiment of the present invention.

2B is a cross-sectional view of the resistive touch display panel of FIG. 2A along the line I ₂ -I ₂ '.

2C is a cross-sectional view of the resistive touch display panel of FIG. 2A along the line I ₃ -I ₃ '.

3 is another top plan view of a resistive touch display panel according to a first embodiment of the present invention.

4 is a top plan view of a resistive touch display panel according to a second embodiment of the present invention.

FIG. 5 is a schematic top plan view of a resistive touch display panel according to a third embodiment of the present invention.

FIG. 6 is a schematic top plan view of a resistive touch display panel according to a fourth embodiment of the present invention.

400. . . Resistive touch display panel

510. . . Scanning line

520. . . Data line

530. . . Subpixel unit

532. . . Thin film transistor

534. . . Pixel electrode

540. . . Touch unit

542. . . First sub-touch unit

544. . . Second sub-touch unit

546. . . First touch signal transmission wire

548. . . Second touch signal transmission wire

550. . . Shared wiring

552. . . First touch signal readout circuit

554. . . Second touch signal readout circuit

A. . . Subpixel area

B. . . Surrounding area

Claims (12)

A resistive touch display panel includes: a first array substrate, including a plurality of scan lines, a plurality of data lines, a plurality of sub-pixel units, and a plurality of touch units, wherein the scan lines and the data lines are A plurality of sub-pixel regions are defined on the first array substrate, and each of the sub-pixel units is respectively located in one of the sub-pixel regions and electrically connected to one of the scan lines and one of the data lines, and each of the touch units The method includes: a plurality of first sub-touch units; and a plurality of second sub-touch units, wherein each of the first sub-touch units and the second sub-touch units are distributed in at least two adjacent sub-pixels a first touch signal transmission wire electrically connected to the first sub-touch units; a second touch signal transmission wire electrically connected to the second sub-touch units; and a first The second array substrate is disposed above the first array substrate, wherein the second array substrate includes a plurality of spacers supported between the first array substrate and the second array substrate, a plurality of touch bumps, and a common Electrode, the common electrode is covered Each of the touch bumps is located above one of the first sub-touch units and one of the second sub-touch units, and the common electrode and the touch on each of the touch bumps A gap is maintained between the control units. The resistive touch display panel of claim 1, wherein each of the sub-pixel units comprises: A thin film transistor is electrically connected to one of the scan lines and one of the data lines; and a pixel electrode is electrically connected to the thin film transistor. The resistive touch display panel of claim 1, wherein the voltage levels of the first sub-touch units are the first reference voltage, and the voltage levels of the second sub-touch units are And a second reference voltage, wherein the first reference voltage is different from a voltage level of the common electrode, and the second reference voltage is different from a voltage level of the common electrode. The resistive touch display panel of claim 1, wherein the first sub-touch unit comprises: a first touch pad disposed under one of the touch bumps; and a first conductive layer The first conductive layer is electrically connected to the first touch pad. The resistive touch display panel of claim 1, wherein the second sub-touch unit comprises: a second touch pad disposed under one of the touch bumps; and a second conductive layer The second conductive layer is electrically connected to the second touch pad. The resistive touch display panel of claim 1, wherein the second array substrate comprises a color filter substrate. The resistive touch display panel of claim 1, wherein the first touch signal transmission wires and the touch signal transmission wires respectively extend from different sub-pixel regions to the first array substrate On a surrounding area. Resistive touch display surface as described in claim 7 The board further includes: a first touch signal readout circuit electrically connected to each of the first touch signal transmission wires to determine a voltage level change of each of the first touch signal transmission wires; and a second The touch signal readout circuit is electrically connected to each of the second touch signal transmission wires to determine a voltage level change of each of the second touch signal transmission wires. The resistive touch display panel of claim 8, wherein the first touch signal readout circuit and the second touch signal readout circuit are disposed on the peripheral area. The resistive touch display panel of claim 1, wherein the common electrode covers the touch bumps and the spacers. The resistive touch display panel of claim 1, wherein the common electrode does not cover the spacers. A resistive touch display panel includes: a first array substrate, including a plurality of scan lines, a plurality of data lines, a plurality of sub-pixel units, and a plurality of touch units, wherein the scan lines and the data lines are A plurality of sub-pixel regions are defined on the first array substrate, and each of the sub-pixel units is respectively located in one of the sub-pixel regions and electrically connected to one of the scan lines and one of the data lines, and each of the touch units The method includes: a plurality of first sub-touch units; and a plurality of second sub-touch units, wherein each of the first sub-touch units and the second sub-touch units are distributed in at least two sub-pixel regions, And traversing at least one data line; a first touch signal transmission wire, and the first sub-touch list The second touch signal transmission wire is electrically connected to the second sub-touch units, wherein the first touch signal transmission wire and the second touch are not before the touch action occurs. The signal transmission wires are electrically insulated from each other; and a second array substrate is disposed above the first array substrate, wherein the second array substrate includes a plurality of gaps supported between the first array substrate and the second array substrate The plurality of touch bumps and a common electrode, the common electrode covers the touch bumps, and each of the touch bumps is located in one of the first sub-touch units and one of the second sub-touch units A gap is maintained between the common electrode on the touch bumps and the touch unit.