WO2007118365A1 - Lcd back light module structure - Google Patents
Lcd back light module structure Download PDFInfo
- Publication number
- WO2007118365A1 WO2007118365A1 PCT/CN2006/000729 CN2006000729W WO2007118365A1 WO 2007118365 A1 WO2007118365 A1 WO 2007118365A1 CN 2006000729 W CN2006000729 W CN 2006000729W WO 2007118365 A1 WO2007118365 A1 WO 2007118365A1
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- WO
- WIPO (PCT)
- Prior art keywords
- light
- led
- lcd
- conducting
- blind hole
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 210000001747 pupil Anatomy 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- FDRHXXQUUFPDKT-IPWDFOCMSA-N (2s)-2-[(e)-3-(4-chlorophenyl)prop-2-enoyl]oxypropanoic acid Chemical compound OC(=O)[C@H](C)OC(=O)\C=C\C1=CC=C(Cl)C=C1 FDRHXXQUUFPDKT-IPWDFOCMSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
- H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
- H01L25/0753—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/855—Optical field-shaping means, e.g. lenses
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls
Definitions
- the invention relates to a backlighting device S for an LCD, in particular to a backlighting device using an LED as a light source.
- the current LCD backlighting device is mainly based on A-light CCFL (Cold Cathode Lamp).
- CCFL Cold Cathode Lamp
- CCPL Cold Cathode Lamp
- the size of the LCD is also increased.
- the required 1 ⁇ 4 ⁇ 4 drive 3 ⁇ 4 way must also be increased.
- most CCFLs must be serial/parallel.
- CCFL has a short life span, which affects the life of the LCD, plus its relatively power consumption, and the 3 ⁇ 4 substance contained in the CCFL, no doubt about environmental protection; 3 ⁇ 4-type injury.
- LEDs are used as the source of LCD backlights. They are installed on the LCD side or on both sides of the S number: LY3). When the power is turned on, the LED light source is projected on the LCD. The image on the LCD is displayed. Generally, the light of the LED is not uniformly scattered, but is concentrated in a small range. An area on the LCD that uses the LED to project light is particularly bright, and a significant brightness decay can be seen around the bright area.
- some people use densely-arranged LED squares to make the adjacent two LEDs adjacent to each other, reducing the dim area, so that not only the cost, but also the power consumption, without the substantial increase in brightness. Sexual help, and the problem of uneven light on the LCD still exists, so it is not a good solution; ! £ ⁇ .
- the main object of the present invention is to provide an improved structure of an LCD backlight module.
- the LED is the illumination source, and the LED has a curvature to ensure that the LED light is evenly transmitted to the LCD.
- Another object of the present invention is to provide an LCD 3 ⁇ 4f optical module improved structure, a use; 3 ⁇ 4 ⁇ 3 ⁇ 4 degree white LED as a light source, so that the LCD has high brightness, good picture quality, and uses long life advantage.
- a backlight correction structure capable of achieving the above object which mainly comprises one or more LEDs, the LED is disposed on the guiding rod, and the surface of the guiding rod is provided with 5IT conductive sheets, and the conductive sheets are used for connecting Driving circuit, and having a cyan hole on the guiding rod, the luminous point of the LED is solidified in the pupil, and the wire of the luminous point is extended to two 3 ⁇ 4 conductive sheets, and then the same crystal is struck
- the completed blind hole concave casting epoxy forms a light guiding lens, and the light guiding lens has a curved shape to ensure uniform scattering of light of the LED.
- the light of the light-emitting point is transmitted through the pupil ,, and is transmitted to the LCD by the light-transmitting platelet having the curvature, so that each LED can form a uniform brightness light-emitting surface on the LCD, so that the LCD 3 ⁇ 4 is more comfortable.
- the invention has the advantages that the light of the I D can be uniformly scattered onto the LCD to form a uniform light-emitting surface of 33 ⁇ 4 degrees, so that the LCD has the advantages of high brightness, good image quality and long service life. Turn over
- Figure 1 is a perspective view of a single LED structure of the present invention
- FIG. 2 is a perspective view of a guide rod and an LED structure of the present invention
- Figure 3 is a plan view showing the structure of the guide rod and the LED of the present invention.
- Figure 4 is a front view of the guide rod and LED structure of the wood invention: 1, LED, 11, luminous point, 12, wire, 13, light guide lens, 2, guide, 21, ⁇ film, 22, hundred holes
- the wood invention provides an improved structure of an LCD backlight module.
- the optical module includes a guide rod 2, and a plurality of LEDs 1 are disposed on the guide rod, so that each LED 1 can project light to the LCD ( The light is not partially shown, and the light of each LED 1 can be partially! £ ⁇ 4 to ensure that the light is completely distributed on the LCD.
- the surface of the guiding rod 1 is provided with a conductive sheet 21 for connecting a driving circuit (shown) to provide illumination and control of the LED 1 :
- the guiding rod 2 is provided with a hole 22, the LED I
- the light-emitting point 11 is solidified in the blind hole 22, and the wire 12 of the light-emitting point II is extended to the conductive sheets 21 on both sides, and finally the epoxy resin is cast around the blind hole 22 which is completed by the solid-crystal wire to form the light guiding lens 13
- the light of the light-emitting point 11 is concentrated via the 'hole 22' and is emitted by the light guiding lens 1.3 onto the LD.
- the above-mentioned light guiding lens 13 has a different shape of the LED and has an arc shape.
- the arc shape ensures that the light of the LED 1 is evenly scattered, and does not reach a point, so each LED 1 can form a uniform hook on the LCD.
- the bright side of the light makes the LCD look more comfortable.
- the light guiding lens 13 is a lens having a high light transmittance, and may be a light-transmitting material such as glass, in addition to the epoxy resin.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
LCI)背光模块改良结构 技术领 '域 LCI) improved structure of backlight module
本发明涉及一种 LCD 的背光照明装 S , 特别是涉及一种采用 LED为光源的背光照明装置。 技术 The invention relates to a backlighting device S for an LCD, in particular to a backlighting device using an LED as a light source. Technology
目前的 LCD背光照明装置， 主耍是以 A光 CCFL (冷阴极灯管） 为主， 将 CCPL设置在 LCD背后， 然后发光投射到 LCD上， 便 LCD 上的 ©面得以显现。 而面对 LCD尺寸愈做愈大. 所需的 下1 ¾其 驱动 ¾路也必须有所增加。耍达成大尺寸 LCD的背光照明功能， 必 须将多数的 CCFL进行串 /并联， 然而， 在 LCD的尺寸范围之内， 即 使 Φ /并联最多数的 CCFL， 其所能得到的亮度仍然不足， 特别对于 大尺寸 LCD更为明显。 且 CCFL寿命较短， 连带影响 LCD的使用寿 命， 加上其较为耗电， 以及 CCFL内含有¾物质， 对于环境保护无 疑; ¾—种伤害。 The current LCD backlighting device is mainly based on A-light CCFL (Cold Cathode Lamp). CCPL is placed behind the LCD, and then the light is projected onto the LCD, and the © surface on the LCD is displayed. In the face of LCD size, the size of the LCD is also increased. The required 1⁄4⁄4 drive 3⁄4 way must also be increased. In order to achieve the backlight function of large-size LCD, most CCFLs must be serial/parallel. However, within the size range of LCD, even if the maximum number of CCFLs in Φ/parallel is enough, the brightness can still be insufficient, especially for Large size LCDs are more obvious. And CCFL has a short life span, which affects the life of the LCD, plus its relatively power consumption, and the 3⁄4 substance contained in the CCFL, no doubt about environmental protection; 3⁄4-type injury.
因此， 采行其它背光来源， 成为 LCD发展的必然趋势。 目前较 为成熟的技术， 为利用商亮度白光 LED作为 -ΪΤ光來源， LED应用在 小尺寸的 LCD屏幕上已有一段时间， 例如手机、 PDA上， 近年来更 由于技术提升， 使 LED的亮度大为提升， 加上 ¾虽轻巧、 坚阇， Ά ^命较长， 故 S成为许多大尺寸 LCD的选择对象。 Therefore, adopting other backlight sources has become an inevitable trend in LCD development. At present, the more mature technology, for the use of commercial brightness white LED as a source of dawn, LED applications have been on small-size LCD screens for some time, such as mobile phones, PDAs, in recent years, due to technological improvements, the brightness of LEDs is large For the sake of improvement, although 3⁄4 is light, strong, and long-lived, S has become the object of choice for many large-size LCDs.
一般 LED作为 LCD背光来源的设置方法，是在 LCD 侧或两侧 装 S数: ί¾不等的 LEt)， 当开^电源时， LED光源即投射在 LCD上. 使 LCD上的影像得以显现。一般 LED的光线并非均匀散射， 而是集 中在一小范围内，使用该 LED投射光线的 LCD上有一区域特别明亮， 该明 区域四周可看出明显的亮度衰减。针对前述缺点， 有人采用 密 ½布设 LED方忒， 使得任意两颗 LED的明充范 II相邻， 减少暗淡 的区域， 伹如此不仅成本提商、 ¾加了耗电， 又无增加亮度的实质 性帮助， 且 LCD上光线不均匀的问题仍然存在， 故并非良好的解决 之；! £ϊ。 Generally, LEDs are used as the source of LCD backlights. They are installed on the LCD side or on both sides of the S number: LY3). When the power is turned on, the LED light source is projected on the LCD. The image on the LCD is displayed. Generally, the light of the LED is not uniformly scattered, but is concentrated in a small range. An area on the LCD that uses the LED to project light is particularly bright, and a significant brightness decay can be seen around the bright area. In view of the above shortcomings, some people use densely-arranged LED squares to make the adjacent two LEDs adjacent to each other, reducing the dim area, so that not only the cost, but also the power consumption, without the substantial increase in brightness. Sexual help, and the problem of uneven light on the LCD still exists, so it is not a good solution; ! £ϊ.
本发明的主要目的在于提供一种 LCD背光模块改良结构，采用The main object of the present invention is to provide an improved structure of an LCD backlight module.
LED为发光源， 该 LED具有弧度， 可确保 LED的光线得以均匀敗射 到 LCD上。 The LED is the illumination source, and the LED has a curvature to ensure that the LED light is evenly transmitted to the LCD.
本发明的另一目的即在于提.供一种 LCD ¾f光榄块改良结构， a 采用; ¾ί ¾度白光 LED为光源， 故使该 LCD具有高亮度、 画质佳， 且 使用^命长的优点。 Another object of the present invention is to provide an LCD 3⁄4f optical module improved structure, a use; 3⁄4ί 3⁄4 degree white LED as a light source, so that the LCD has high brightness, good picture quality, and uses long life advantage.
可达成上述发明目的的一种 背光校块改良结构， 主要包 括有一颗或一颗以上的 LED , 该 LED设罝在导杆上， 该导杆表面设 5IT有导电片， 该导电片用来连接驱动电路， 并在该导杆上设青有肓 孔， 该 LED的发光点则固晶在苜孔内， 并将该发光点的导线延伸到 两¾的导电片，兢后在同晶打线完成的盲孔凹周浇注环氧树脂形成 导光透镜， 该导光透铳具有弧度的造型， 以确保该 LED的光线均匀 散射。 使用时， 该发光点的光线经由苜孔桀中， 并由具有弧度的导 光透镀发射到 LCD上，使各 LED可在 LCD上形成均匀亮度的发光面， 使 LCD ¾起来更为舒适。 A backlight correction structure capable of achieving the above object, which mainly comprises one or more LEDs, the LED is disposed on the guiding rod, and the surface of the guiding rod is provided with 5IT conductive sheets, and the conductive sheets are used for connecting Driving circuit, and having a cyan hole on the guiding rod, the luminous point of the LED is solidified in the pupil, and the wire of the luminous point is extended to two 3⁄4 conductive sheets, and then the same crystal is struck The completed blind hole concave casting epoxy forms a light guiding lens, and the light guiding lens has a curved shape to ensure uniform scattering of light of the LED. In use, the light of the light-emitting point is transmitted through the pupil ,, and is transmitted to the LCD by the light-transmitting platelet having the curvature, so that each LED can form a uniform brightness light-emitting surface on the LCD, so that the LCD 3⁄4 is more comfortable.
本发明的优点是： I D的光线可以均匀散射到 LCD上， 形成均 匀 3¾度的发光面， 从而使该 LCD具有高亮度、 画质佳， 且使用寿命 长的优点。 翻 .舰 The invention has the advantages that the light of the I D can be uniformly scattered onto the LCD to form a uniform light-emitting surface of 33⁄4 degrees, so that the LCD has the advantages of high brightness, good image quality and long service life. Turn over
图 1为本发明的单颗 LED结构立体图； Figure 1 is a perspective view of a single LED structure of the present invention;
图 2为本发明的导杆与 LED结构立体图； 2 is a perspective view of a guide rod and an LED structure of the present invention;
图 3为本发明的导杆与 LED结构俯视图； Figure 3 is a plan view showing the structure of the guide rod and the LED of the present invention;
图 4为木发明的导杆与 LED结构前视图： 1、 LED, 11、 发光点， 12、 导线， 13、 导光透镜， 2、 导扦， 21、 ^电片， 22、 百孔 Figure 4 is a front view of the guide rod and LED structure of the wood invention: 1, LED, 11, luminous point, 12, wire, 13, light guide lens, 2, guide, 21, ^ film, 22, hundred holes
¾f参阅图 i至图 4所示， 木发明提供一种 LCD背光模块改良 结构 该^光模块包括有导杆 2, 导杆上设置有复数颗 LED 1, 使各 LED 1可投射光线到 LCD (图未示出）上， 且各 LED 1 的光线可 部份 !£¾， 以确保光线得以完全分布在该 LCD上。 Referring to Figures i to 4, the wood invention provides an improved structure of an LCD backlight module. The optical module includes a guide rod 2, and a plurality of LEDs 1 are disposed on the guide rod, so that each LED 1 can project light to the LCD ( The light is not partially shown, and the light of each LED 1 can be partially! £3⁄4 to ensure that the light is completely distributed on the LCD.
前述导杆 1表面设置有导电片 21,该导电片 21用来连接驱动 电路（图来示出）， 以提供 LED 1发光与控制： 该导杆 2上设置有- 孔 22, 该 LED I 的发光点 11 则固品在盲孔 22 内， 并将该发光点 II 的导线 12延伸到两旁的导电片 21，最后在固晶打线完成的盲孔 22四周浇注环氧树脂形成导光透镜 13: 藉此， 该发光点 11的光线 经由 '孔 22集中， 并由导光透镜 1.3发射到 L D上。 前述导光透镜 13不同一般的 LED 设 IS 而采有弧度的造型， 此弧度造型可确保 该 LED 1 的光线均匀散射， 而不会 ^中到一点， 故各 LED 1 可在 LCD上形成均勾亮度的发光面， 使 LCD看起来更为舒适。 The surface of the guiding rod 1 is provided with a conductive sheet 21 for connecting a driving circuit (shown) to provide illumination and control of the LED 1 : the guiding rod 2 is provided with a hole 22, the LED I The light-emitting point 11 is solidified in the blind hole 22, and the wire 12 of the light-emitting point II is extended to the conductive sheets 21 on both sides, and finally the epoxy resin is cast around the blind hole 22 which is completed by the solid-crystal wire to form the light guiding lens 13 Thereby, the light of the light-emitting point 11 is concentrated via the 'hole 22' and is emitted by the light guiding lens 1.3 onto the LD. The above-mentioned light guiding lens 13 has a different shape of the LED and has an arc shape. The arc shape ensures that the light of the LED 1 is evenly scattered, and does not reach a point, so each LED 1 can form a uniform hook on the LCD. The bright side of the light makes the LCD look more comfortable.
该导光透镜 13为具有高透光率的镜片，除了前述环氧树脂外， 还可为玻璃等透光.良好的材质。 The light guiding lens 13 is a lens having a high light transmittance, and may be a light-transmitting material such as glass, in addition to the epoxy resin.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2006/000729 WO2007118365A1 (en) | 2006-04-19 | 2006-04-19 | Lcd back light module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2006/000729 WO2007118365A1 (en) | 2006-04-19 | 2006-04-19 | Lcd back light module structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007118365A1 true WO2007118365A1 (en) | 2007-10-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2006/000729 WO2007118365A1 (en) | 2006-04-19 | 2006-04-19 | Lcd back light module structure |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2007118365A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107003561A (en) * | 2014-12-11 | 2017-08-01 | 堺显示器制品株式会社 | Lighting device and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002049326A (en) * | 2000-08-02 | 2002-02-15 | Fuji Photo Film Co Ltd | Plane light source and display element using the same |
| US6956243B1 (en) * | 2004-07-23 | 2005-10-18 | Unity Opto Technology Co., Ltd | Light emitting diode |
| US6964489B2 (en) * | 2002-09-27 | 2005-11-15 | Siemens Aktiengesellschaft | Device for producing an image |
| CN1716040A (en) * | 2004-06-30 | 2006-01-04 | Lg.菲利浦Lcd株式会社 | Backlight unit of liquid crystal display device and liquid crystal display device using the backlight unit |
| US20060034097A1 (en) * | 2004-08-11 | 2006-02-16 | Samsung Electro-Mechanics Co., Ltd. | Light emitting diode lens and backlight apparatus having the same |
-
2006
- 2006-04-19 WO PCT/CN2006/000729 patent/WO2007118365A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002049326A (en) * | 2000-08-02 | 2002-02-15 | Fuji Photo Film Co Ltd | Plane light source and display element using the same |
| US6964489B2 (en) * | 2002-09-27 | 2005-11-15 | Siemens Aktiengesellschaft | Device for producing an image |
| CN1716040A (en) * | 2004-06-30 | 2006-01-04 | Lg.菲利浦Lcd株式会社 | Backlight unit of liquid crystal display device and liquid crystal display device using the backlight unit |
| US6956243B1 (en) * | 2004-07-23 | 2005-10-18 | Unity Opto Technology Co., Ltd | Light emitting diode |
| US20060034097A1 (en) * | 2004-08-11 | 2006-02-16 | Samsung Electro-Mechanics Co., Ltd. | Light emitting diode lens and backlight apparatus having the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107003561A (en) * | 2014-12-11 | 2017-08-01 | 堺显示器制品株式会社 | Lighting device and display device |
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