CN102279497A - Color filter substrate and display device - Google Patents
Color filter substrate and display device Download PDFInfo
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- CN102279497A CN102279497A CN2010101957657A CN201010195765A CN102279497A CN 102279497 A CN102279497 A CN 102279497A CN 2010101957657 A CN2010101957657 A CN 2010101957657A CN 201010195765 A CN201010195765 A CN 201010195765A CN 102279497 A CN102279497 A CN 102279497A
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- 239000000758 substrate Substances 0.000 title claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 38
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims description 69
- 238000001914 filtration Methods 0.000 claims description 68
- 239000010409 thin film Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000001962 electrophoresis Methods 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 7
- 238000001579 optical reflectometry Methods 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000003094 microcapsule Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 241000283080 Proboscidea <mammal> Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The invention relates to a color filter substrate, which comprises a transparent substrate, a plurality of color photoresists arranged on the transparent substrate and a high-reflection area arranged on the transparent substrate. The high reflection region at least comprises a first region for separating the color photoresists, and the high reflection region is filled with a reflection material or is a hollow region. The invention also relates to a display device, which comprises a lower substrate, a driving circuit layer arranged on the lower substrate, a display layer arranged on the driving circuit layer and the color filter substrate arranged on the display layer. The high reflection area is beneficial to improving the reflection brightness of the display device, and further the display quality of the display device is improved.
Description
Technical field
The present invention relates to a kind of display device, and particularly relate to a kind of colored optical filtering substrates and have the display device of this colored optical filtering substrates.
Background technology
Traditional electrophoretic display apparatus (electrophoretic display) is the white and black displays device, in order to allow electrophoretic display apparatus have more the market competitiveness, prior art can make electrophoretic display apparatus reach the effect of colorize by colored optical filtering substrates (colorfilter substrate), so that electrophoretic display apparatus meets the trend that present display device is pursued colorize.
Please refer to Fig. 1, Fig. 1 is a kind of diagrammatic cross-section of existing colored optical filtering substrates.As shown in Figure 1, existing colored optical filtering substrates 300 comprises a plurality of red photoresistance 311, a plurality of green photoresistance 312 and a plurality of blue photoresistances 313 that is arranged at transparency carrier 310, and (black matrix, BM) 314 separate by black matrix" between these red photoresistances 311, green photoresistance 312 and the blue photoresistance 313.Red photoresistance 311, green photoresistance 312 and blue photoresistance 313 are in order to be filtered into ruddiness, green glow and blue light respectively with white light, so that display device can demonstrate chromatic image.
The structure of the black matrix" 314 of existing colored optical filtering substrates 300 has interception, can reduce light leakage phenomena (light leakage), but this structure has bigger optical loss when using in reflective display.And, in the light transmittance process, because light must be through twice absorption of the red photoresistance 311 of colored optical filtering substrates 300, green photoresistance 312 and blue photoresistance 313, the overall light intensity that makes display panel reflect descends, and the overall light intensity decline of display device can have influence on the color display brightness, and then causes the display quality of display device not good.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of colored optical filtering substrates, it has higher light reflectivity, helps improving the reflecting brightness of display device, and then promotes the display quality of display device.
The present invention also provides a kind of display device, and it has higher reflecting brightness, helps promoting display quality.
For reaching above-mentioned advantage, the present invention proposes a kind of colored optical filtering substrates, the high-reflection region territory that it comprises transparency carrier, is disposed at a plurality of chromatic photoresists of transparency carrier and is disposed at transparency carrier.The high-reflection region territory comprises the first area of separating each chromatic photoresist at least, and the high-reflection region territory is filled with reflecting material or is hollow region.
In one embodiment of this invention, above-mentioned reflecting material is white photoresistance.In one embodiment of this invention, above-mentioned reflecting material is the resistance of translucent white coloured light.In one embodiment of this invention, above-mentioned these chromatic photoresists are made up of a plurality of red photoresistances, a plurality of green photoresistance, a plurality of blue photoresistance, or are made up of a plurality of cyan photoresistances, a plurality of carmetta photoresistances and a plurality of yellow photoresistance.
For reaching above-mentioned advantage, the present invention provides a kind of display device again, the colored optical filtering substrates that it comprises infrabasal plate, is disposed at the drive circuit layer of infrabasal plate, is disposed at the display layer of drive circuit layer and is disposed at display layer.Colored optical filtering substrates comprise upper substrate, be disposed at a plurality of chromatic photoresists between upper substrate and the display layer and be disposed at upper substrate and display layer between the high-reflection region territory.The high-reflection region territory comprises the first area of separating each chromatic photoresist at least, and the high-reflection region territory is filled with reflecting material.
In one embodiment of this invention, above-mentioned reflecting material is white photoresistance.In one embodiment of this invention, above-mentioned drive circuit layer comprises a plurality of thin film transistor (TFT)s, and the high-reflection region territory more comprises a plurality of second areas, and it is positioned at each chromatic photoresist, and each second area is positioned at above these thin film transistor (TFT)s, in order to reflection ray accordingly.In one embodiment of this invention, above-mentioned reflecting material is the resistance of translucent white coloured light.In one embodiment of this invention, above-mentioned these chromatic photoresists are made up of a plurality of red photoresistances, a plurality of green photoresistance, a plurality of blue photoresistance, or are made up of a plurality of cyan photoresistances, a plurality of carmetta photoresistances and a plurality of yellow photoresistance.
In one embodiment of this invention, above-mentioned display layer is the electrophoresis showed layer.In one embodiment of this invention, above-mentioned electrophoresis showed layer is microcapsules electrophoresis showed layer, little glass of electrophoresis showed layer or plough groove type electrophoresis showed layer.In one embodiment of this invention, above-mentioned drive circuit layer is active matrix drive circuit layer or passive-matrix drive circuit layer.In one embodiment of this invention, above-mentioned display layer is a liquid crystal display layer.
In one embodiment of this invention, above-mentioned high-reflection region territory more comprises a plurality of second areas, and each second area is positioned at a plurality of pixel electrode tops of drive circuit layer accordingly.
For reaching above-mentioned advantage, the present invention proposes a kind of display device in addition, the colored optical filtering substrates that it comprises infrabasal plate, is disposed at the drive circuit layer of infrabasal plate, is disposed at the display layer of drive circuit layer and is disposed at display layer.Colored optical filtering substrates comprises upper substrate, is disposed at a plurality of chromatic photoresists between upper substrate and the display layer.Utilize the high-reflection region territory separate between these chromatic photoresists, the high-reflection region territory is a hollow region, and comprises the first area at least.
Colored optical filtering substrates of the present invention has the high-reflection region territory, and the high-reflection region territory comprises the first area of separating each chromatic photoresist at least.So, when the high-reflection region territory was filled with reflecting material, light can not pass colored optical filtering substrates, but directly reflected via reflecting material, thereby can increase the overall reflectivity of display panel, therefore can improve the overall reflective light intensity of display panel.When the high-reflection region territory was hollow region, light can repeatedly not pass through the absorption of colored filter, but is directly incident on display panel, thereby can improve the overall light intensity that the light display panel reflects, and has higher light reflectivity.Therefore, this colored optical filtering substrates helps improving the colored display brightness of display device, and then promotes the display quality of display device.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the sectional view of existing colored optical filtering substrates.
Fig. 2 is the schematic top plan view of the colored optical filtering substrates of first embodiment of the invention.
Fig. 3 is the schematic top plan view of the colored optical filtering substrates of second embodiment of the invention.
Fig. 4 is the structural profile synoptic diagram of the display device of one embodiment of the invention.
Fig. 5 is the schematic top plan view of the colored optical filtering substrates of third embodiment of the invention.
Fig. 6 is the schematic top plan view of the colored optical filtering substrates of fourth embodiment of the invention.
Fig. 7 is the schematic top plan view of the colored optical filtering substrates of fifth embodiment of the invention.
Fig. 8 is the schematic top plan view of the colored optical filtering substrates of sixth embodiment of the invention.
Fig. 9 is the schematic top plan view of the colored optical filtering substrates of seventh embodiment of the invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with drawings and Examples, to its embodiment of electronic installation, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Colored optical filtering substrates comprises a plurality of pixels because the structure of each pixel is roughly the same, so following graphic in, will represent colored optical filtering substrates with a pixel of colored optical filtering substrates.
See also Fig. 2, Fig. 2 is the schematic top plan view of the colored optical filtering substrates structure of first embodiment of the invention.As shown in Figure 2, the high-reflection region territory 130 (only illustrating the structure in the part high-reflection region territory 130 of a corresponding pixel among Fig. 2) that the colored optical filtering substrates 100 of present embodiment comprises transparency carrier 110, is disposed at a plurality of chromatic photoresists 120 of transparency carrier 110 (only illustrating the structure of a corresponding pixel among Fig. 2, promptly red photoresistance, green photoresistance and blue photoresistance or cyan photoresistance, carmetta photoresistance and yellow photoresistance) and is disposed at transparency carrier 110.In the present embodiment, pixel comprises pixels three times, and three pixels arrange from left to right side by side, but not as limit.Red photoresistance, green photoresistance and blue photoresistance, perhaps corresponding respectively one pixel of cyan photoresistance, carmetta photoresistance and yellow photoresistance.
High-reflection region territory 130 comprises the chromatic photoresist 120 of separation, promptly red photoresistance, green photoresistance and blue photoresistance, the perhaps first area 131 of cyan photoresistance, carmetta photoresistance and yellow photoresistance.In the present embodiment, first area 131 is lattice-shaped, is used for a plurality of chromatic photoresists 120 of a plurality of pixels are separated.In the present embodiment, first area 131 is filled with reflecting material 140.Reflecting material 140 for example can be the white photoresistance with high reflectance.When first area 131 was filled with reflecting material 140, the light that part incides colored optical filtering substrates 100 can not pass colored optical filtering substrates 100, but directly via reflecting material 140 reflections.Therefore, when colored optical filtering substrates 100 is applied to display device, can increase the overall reflectivity of display device panel, thereby improve the overall reflective light intensity of display device panel, help improving the display quality of display device.
See also Fig. 3, Fig. 3 is the schematic top plan view of the colored optical filtering substrates structure of second embodiment of the invention.As shown in Figure 3, the colored optical filtering substrates 100a of present embodiment and the colored optical filtering substrates 100 of first embodiment are roughly the same, the difference of the two is, high-reflection region territory 130a also comprises a plurality of second areas 132, it is positioned at each chromatic photoresist 120, and second area 132 is positioned at the thin film transistor (TFT) top of display device accordingly during use, is used for reflection ray, have interception, cause the thin film transistor (TFT) electric leakage to prevent light from arriving thin film transistor (TFT).Because colored optical filtering substrates 100a is disposed on the display layer of display device usually, thereby make display device energy display color image.For convenience of description, hereinafter will be the second area 132 that example further specifies the high-reflection region territory 130a of colored optical filtering substrates 100a with the display device.
Fig. 4 is the diagrammatic cross-section of the display device of one embodiment of the invention.See also Fig. 3 and Fig. 4, the display device 200 of present embodiment comprises infrabasal plate 210, drive circuit layer 220, display layer 230 and above-mentioned colored optical filtering substrates 100a.Drive circuit layer 220 is disposed on the infrabasal plate 210, and drive circuit layer 220 comprises a plurality of thin film transistor (TFT)s 221.Display layer 230 is disposed on the drive circuit layer 220.Colored optical filtering substrates 100a is disposed on the display layer 230.As previously mentioned, colored optical filtering substrates 100a comprise transparency carrier 110 (or deserving to be called substrate), be disposed at a plurality of chromatic photoresists 120 between transparency carrier 110 and the display layer 230 and be disposed at transparency carrier 110 and display layer 230 between high-reflection region territory 130a.
When colored optical filtering substrates 100a was disposed on the display layer 230, the second area 132 of high-reflection region territory 130a was positioned at thin film transistor (TFT) 221 tops respectively accordingly.In the present embodiment, second area 132 is the rectangular area, but not as limit, as long as it can effectively shut out the light and incide thin film transistor (TFT) 221.Second area 132 is filled with the white photoresistance that reflecting material 140 for example has high reflectance.When second area 132 is filled with reflecting material 140, light can be directly via reflecting material 140 reflections, can not enter thin film transistor (TFT) 221, the reflecting material 140 of second area 132 thereby have interception, can stop effectively that light arrives thin film transistor (TFT) 221, thereby prevent that thin film transistor (TFT) 221 from producing the light electric leakage.Simultaneously, the reflecting material 140 direct reflection rays of second area 132 also can improve the overall reflective light intensity of display device 200.
Be appreciated that display layer 230 can be the electrophoresis showed layer according to display device 200 kind differences, for example microcapsules electrophoresis showed layer, little glass of electrophoresis showed layer or plough groove type electrophoresis showed layer.Display layer 230 also can be liquid crystal display layer.According to the type of drive difference, drive circuit layer 220 can be active matrix drive circuit layer or passive-matrix drive circuit layer.
See also Fig. 5, Fig. 5 is the schematic top plan view of the colored optical filtering substrates structure of third embodiment of the invention.As shown in Figure 5, similar with first embodiment, the colored optical filtering substrates 100b of present embodiment comprises transparency carrier 110, is disposed at a plurality of chromatic photoresist 120b of transparency carrier 110 and (only illustrates the structure of a corresponding pixel among Fig. 5, be red photoresistance, green photoresistance and blue photoresistance, perhaps cyan photoresistance, carmetta photoresistance and yellow photoresistance) and the high-reflection region territory 130b (only illustrating the structure of the part high-reflection region territory 130b of a corresponding pixel among Fig. 5) that is disposed at transparency carrier 110.In the present embodiment, dot structure comprises pixel regions four times, and four pixel regions are sphere of movements for the elephants shape and arrange, but not as limit.Corresponding respectively one pixel region of red photoresistance, green photoresistance and blue photoresistance or cyan photoresistance, carmetta photoresistance and yellow photoresistance.
High-reflection region territory 130b comprises the chromatic photoresist 120b of separation, promptly red photoresistance, green photoresistance and blue photoresistance, perhaps the first area 131b of cyan photoresistance, carmetta photoresistance and yellow photoresistance.In the present embodiment, first area 131b is lattice-shaped, is used for a plurality of chromatic photoresist 120b of a plurality of pixels are separated.In the present embodiment, first area 131b is filled with the white photoresistance that reflecting material 140 for example has high reflectance.In addition, high-reflection region territory 130b also comprises a plurality of second area 133b, and it is positioned at each chromatic photoresist 120, and second area 133b is positioned at the part top of one pixel electrode of display device accordingly during use.In the present embodiment, second area 133b is a border circular areas, but not as limit.In addition, high-reflection region territory 130b more can comprise the 3rd zone 134.When colored optical filtering substrates 100b is disposed on the display layer 230, at a dot structure, the 3rd zone 134 of high-reflection region territory 130b is positioned at the inferior pixel region that chromatic photoresist 120 is not set accordingly, and is positioned at the top of whole time corresponding pixel electrode.In other embodiments, in fact the 3rd regional 134 belows can not need correspondence that driven units such as time pixel electrode or thin film transistor (TFT) are set, and are not limited to this.
See also Fig. 6, Fig. 6 is the schematic top plan view of the colored optical filtering substrates structure of fourth embodiment of the invention.As shown in Figure 6, the colored optical filtering substrates 100c of present embodiment and the colored optical filtering substrates 100b of the 3rd embodiment are roughly the same, and the difference of the two is that the reflecting material 140a that is filled in high-reflection region territory 130b for example is the resistance of translucent white coloured light.When high-reflection region territory 130b is filled with reflecting material 140a, though part light meeting penetrate through reflective material 140a, part light still can be via reflecting material 140a reflection, therefore, still can reach the purpose that overall reflectivity increases, thereby improve the overall reflective light intensity of display device panel.
In addition, the shape of second area is indefinite in fact also, and fifth embodiment of the invention and the 6th embodiment have enumerated the second area of other two kinds of shapes respectively.Fig. 7 is the schematic top plan view of the colored optical filtering substrates structure of fifth embodiment of the invention.See also Fig. 7, the colored optical filtering substrates 100d of present embodiment and the colored optical filtering substrates 100b of the 3rd embodiment are roughly the same, and the difference of the two is that the second area 133d of high-reflection region territory 130d is " ten " font zone.Fig. 8 is the schematic top plan view of structure of the colored optical filtering substrates of sixth embodiment of the invention.See also Fig. 8, the colored optical filtering substrates 100e of present embodiment and the colored optical filtering substrates 100b of the 3rd embodiment are roughly the same, and the difference of the two is that the second area 133e of high-reflection region territory 130e is a plurality of rectangle combination zones.
Fig. 9 is the schematic top plan view of the colored optical filtering substrates structure of seventh embodiment of the invention.See also Fig. 9, the colored optical filtering substrates 100f of present embodiment and the colored optical filtering substrates 100b of the 3rd embodiment are roughly the same, the difference of the two is, in the present embodiment, high-reflection region territory 130b is a hollow region, that is do not fill any material, the part light that incides colored optical filtering substrates 100f can directly see through high-reflection region territory 130b and pass transparency carrier 110 arrival display panels and reflect, thereby can improve the overall light intensity that the light display panel reflects, to improve whole light reflectivity.
Please cooperate again with reference to Fig. 3, the colored optical filtering substrates 100 of the foregoing description, 100b, 100c, 100d, 100e, all replaceable colored optical filtering substrates 100 of 100f are applied to display device 200, be disposed on the display layer 230, concrete structure sees also previous description, is not described in detail in this.Be noted that in order to first, second and the 3rd regional hollow in limitation high-reflection region territory whether or limit to the material of its filling previous embodiment be not.In other embodiments, whether can select hollow in first, second of high-reflection region territory and the 3rd zone arbitrarily, fill identical reflecting material, or different reflecting materials.
In sum, has the high-reflection region territory at colored optical filtering substrates of the present invention.So, when the high-reflection region territory was filled with reflecting material, light can not pass colored optical filtering substrates, but directly reflected via reflecting material, thereby can increase the overall reflectivity of display panel, therefore can improve the overall reflective light intensity of display panel.When the high-reflection region territory was hollow region, light can repeatedly not pass through the absorption of colored filter, but is directly incident on display panel, thereby can improve the overall light intensity that the light display panel reflects, and has higher light reflectivity.Therefore, this colored optical filtering substrates helps improving the colored display brightness of display device, and then promotes the display quality of display device.
The above, only be embodiments of the invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (12)
1. colored optical filtering substrates is characterized in that comprising:
A transparency carrier;
A plurality of chromatic photoresists are disposed at this transparency carrier; And
The high-reflection region territory is disposed at this transparency carrier, and this high-reflection region territory comprises the first area at least, and these these a plurality of chromatic photoresists of first area separation, and wherein this high-reflection region territory is filled with reflecting material or is hollow region.
2. colored optical filtering substrates according to claim 1 is characterized in that, this reflecting material is white photoresistance or the resistance of translucent white coloured light.
3. colored optical filtering substrates according to claim 1, it is characterized in that, these a plurality of chromatic photoresists are made up of a plurality of red photoresistances, a plurality of green photoresistance, a plurality of blue photoresistance, or are made up of a plurality of cyan photoresistances, a plurality of carmetta photoresistances and a plurality of yellow photoresistance.
4. display device according to claim 1 is characterized in that, this high-reflection region territory more comprises a plurality of second areas, and these a plurality of second areas are positioned at this a plurality of chromatic photoresists accordingly.
5. display device according to claim 4 is characterized in that, this second area is rectangular area, border circular areas, " ten " font zone or a plurality of rectangle combination zones.
6. display device is characterized in that comprising:
An infrabasal plate;
A drive circuit layer is disposed at this infrabasal plate;
A display layer is disposed at this drive circuit layer; And
A colored optical filtering substrates is disposed at this display layer, and this colored optical filtering substrates comprises:
A upper substrate; And
A plurality of chromatic photoresists, be disposed between this upper substrate and this display layer, wherein utilize the high-reflection region territory separate between these a plurality of chromatic photoresists, this high-reflection region territory is filled with reflecting material or is hollow region, and comprise the first area at least, this first area is used for these a plurality of chromatic photoresists are separated.
7. display device according to claim 6 is characterized in that, this high-reflection region territory more comprises a plurality of second areas, and it is positioned at each chromatic photoresist, and these a plurality of second areas are positioned at a plurality of pixel electrode tops of this drive circuit layer accordingly.
8. display device according to claim 7 is characterized in that, this second area is rectangular area, border circular areas, " ten " font zone or is a plurality of rectangle combination zones.
9. display device according to claim 6, it is characterized in that, this reflecting material is white photoresistance, this drive circuit layer comprises a plurality of thin film transistor (TFT)s, this high-reflection region territory more comprises a plurality of second areas, and these a plurality of second areas are positioned at this a plurality of thin film transistor (TFT)s top accordingly, in order to reflection ray.
10. display device according to claim 6 is characterized in that, this reflecting material is the resistance of translucent white coloured light.
11. display device according to claim 6 is characterized in that, these a plurality of chromatic photoresists are made up of a plurality of red photoresistances, a plurality of green photoresistance, a plurality of blue photoresistance, or are made up of a plurality of cyan photoresistances, a plurality of carmetta photoresistances and a plurality of yellow photoresistance.
12. display device according to claim 6 is characterized in that, this high-reflection region territory more comprises the 3rd zone, and the 3rd zone is positioned at the inferior pixel region that chromatic photoresist is not set accordingly, and is positioned at the top of whole time corresponding pixel electrode.
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| CN2010101957657A CN102279497A (en) | 2010-06-09 | 2010-06-09 | Color filter substrate and display device |
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| CN2010101957657A CN102279497A (en) | 2010-06-09 | 2010-06-09 | Color filter substrate and display device |
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Inventor after: Wang Yijing Inventor after: Shen Qican Inventor before: Wang Yijing Inventor before: Chen Liting Inventor before: Liu Quanfeng |
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Application publication date: 20111214 |