WO2009018678A1 - Light guide plate - Google Patents
Light guide plate Download PDFInfo
- Publication number
- WO2009018678A1 WO2009018678A1 PCT/CN2007/002353 CN2007002353W WO2009018678A1 WO 2009018678 A1 WO2009018678 A1 WO 2009018678A1 CN 2007002353 W CN2007002353 W CN 2007002353W WO 2009018678 A1 WO2009018678 A1 WO 2009018678A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light guide
- guide plate
- light
- light source
- plastic plate
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
Definitions
- the invention generally relates to a light guide plate, and more particularly to a light guide plate suitable for use in an electronic/communication key.
- BACKGROUND OF THE INVENTION For the prior art, please refer to Chinese Patent Application No. 20051 0036410.
- a button light guide plate having a small number of LEDs and reducing power consumption and ensuring brightness and uniformity of light emission of a button is provided by a light-emitting surface and a light-emitting surface is formed, and a plurality of holes corresponding to the buttons are respectively disposed on the board, and an elongated groove for accommodating the light source is disposed on the light-incident surface, and the elongated groove has a protrusion structure of the back light guide plate; wherein Knowledge technology is mainly through the light Therefore, the long-groove structure of the light guide plate in the prior art can only receive the scattered light on one side of the light source, and the scattered light on the other side cannot be fully utilized. Moreover, the long groove must also be oriented by it.
- the protruding structure provided on the side of the light source assists the light guiding, so that the structure is limited, and the process is complicated, which is not conducive to production processing.
- SUMMARY OF THE INVENTION The present invention is directed to the absence of the above-described prior art, and a primary object is to provide a light guide plate that better enhances overall brightness and uniformity by increasing the light guiding area and making full use of light source scattering.
- a light guide plate includes a plastic plate with high light transmittance, and a plastic hole for accommodating the light source is disposed on the plastic plate.
- FIG. 1 is a view (1) of a light guide plate of the present invention
- Figure 2 is a view (2) of the light guide plate of the present invention.
- FIG. 1 is a first embodiment of a light guide plate according to the present invention. It can be clearly seen from the figure that a light guide plate includes a high transmittance plastic plate 1 , and a light source is disposed on the plastic plate 1 . 2 The accommodating hole 11 is accommodated, and the accommodating hole 11 has an irregular polygonal structure.
- FIG. 2 is a second embodiment of a light guide plate according to the present invention. It can be clearly seen from the figure that a light guide plate includes a high transmittance plastic plate 1 , and a light source is disposed on the plastic plate 1 . 2 The accommodating hole 11 is accommodated, and the accommodating hole 11 has a regular hexagonal structure.
- the receiving holes 11 are arranged in the light source 2, whether they are regular or irregular, so that the scattered light on both sides of the light source 2 can be transmitted to the plastic plate 1 along the inner wall of the shrinking hole 11, and further It can make full use of the scattered light on both sides of the light source, and also increase its light guiding area, thus better improving the overall brightness and uniformity.
Abstract
A light guide plate includes a plastic plate (1) with a high light transmission rate, and a receiving hole (11) to receive a light source (2) is formed in the plastic plate (1). By using the structure of the receiving hole (11) to replace the design of the rectangular grooves with protrusions in the prior art, the light guide plate can adequately apply sides of the light source for dispersion, and further increase the guide proportion, in order to greatly improve the entire brightness and the symmetry.
Description
一种导光板 技术领域 本发明涉及一种导光板， 特别指一种适用于电子 /通讯产 键导光板。 背景技术 习知技术请参阅中国专利申请号 20051 0036410. 2 所公开一种 LED使用数量少而减少耗电量又能确保按键发光亮度和发光均匀性的 按键导光板， 其由一入光面及一出光面构成， 且板上分别分布多个与 按键对应的孔， 于入光面具有用以容纳光源的长形凹槽， 且该长形凹 槽具有背向导光板的突起结构； 其中， 上述习知技术主要是通过入光
故习知技术中的导 光板采用之长条形凹槽构造只能接收到光源一侧面散射光，而另一侧 之散射光无法得以充分利用，况且长条形凹槽还必须藉由其朝向光源 那側设置的突起结构辅助导光， 如此在结构上有所限制, 且制程上存 在较为复杂， 不利于生产加工。 发明内容 本发明针对上述习知技术所存在之缺失，主要目的在于提供一种 导光板， 其通过增加导光面积及充分利用光源散射性， 更好地提升整 体亮度和均匀性。 BACKGROUND OF THE INVENTION 1. Field of the Invention The invention generally relates to a light guide plate, and more particularly to a light guide plate suitable for use in an electronic/communication key. BACKGROUND OF THE INVENTION For the prior art, please refer to Chinese Patent Application No. 20051 0036410. 2 A button light guide plate having a small number of LEDs and reducing power consumption and ensuring brightness and uniformity of light emission of a button is provided by a light-emitting surface and a light-emitting surface is formed, and a plurality of holes corresponding to the buttons are respectively disposed on the board, and an elongated groove for accommodating the light source is disposed on the light-incident surface, and the elongated groove has a protrusion structure of the back light guide plate; wherein Knowledge technology is mainly through the light Therefore, the long-groove structure of the light guide plate in the prior art can only receive the scattered light on one side of the light source, and the scattered light on the other side cannot be fully utilized. Moreover, the long groove must also be oriented by it. The protruding structure provided on the side of the light source assists the light guiding, so that the structure is limited, and the process is complicated, which is not conducive to production processing. SUMMARY OF THE INVENTION The present invention is directed to the absence of the above-described prior art, and a primary object is to provide a light guide plate that better enhances overall brightness and uniformity by increasing the light guiding area and making full use of light source scattering.
为实现上述之目的， 本发明采取如下技术方案： In order to achieve the above object, the present invention adopts the following technical solutions:
一种导光板， 包括一高透光率的塑胶板， 于该塑胶板上开设有一 供光源容置的收纳孔。 A light guide plate includes a plastic plate with high light transmittance, and a plastic hole for accommodating the light source is disposed on the plastic plate.
该收纳孔内壁呈多边形构造； 该多边形呈规则或不规则形状。 本发明与习知技术相比，其优点在于通过收纳孔之构造取代习知 技术中具突起的长条形四槽之设计， 可充分利用光源两侧散射光， 进 一步也增加了其导光面积， 从而更好地提升整体亮度和均匀性。 附图说明 图 1是本发明导光板实施例 （一）
图 2是本发明导光板实施例 （二） 。 具体实施方式 下面结合附图与具体实施方式对本发明作进一步描述。 The inner wall of the receiving hole has a polygonal structure; the polygon has a regular or irregular shape. Compared with the prior art, the invention has the advantages that the design of the accommodating hole replaces the long four-slot design with protrusions in the prior art, and the scattered light on both sides of the light source can be fully utilized, and the light guiding area thereof is further increased. To better improve overall brightness and uniformity. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view (1) of a light guide plate of the present invention; Figure 2 is a view (2) of the light guide plate of the present invention. DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described below in conjunction with the drawings and specific embodiments.
如图 1， 其为本发明导光板实施例 （一） ， 从图中可清楚得知， 一种导光板， 包括一高透光率的塑胶板 1 , 于该塑胶板 1上开设有一 供光源 2容置的收纳孔 11， 该收纳孔 11呈不规则状的多边形构造。 FIG. 1 is a first embodiment of a light guide plate according to the present invention. It can be clearly seen from the figure that a light guide plate includes a high transmittance plastic plate 1 , and a light source is disposed on the plastic plate 1 . 2 The accommodating hole 11 is accommodated, and the accommodating hole 11 has an irregular polygonal structure.
如图 2 , 其为本发明导光板实施例 （二） ， 从图中可清楚得知， 一种导光板， 包括一高透光率的塑胶板 1， 于该塑胶板 1上开设有一 供光源 2容置的收纳孔 11 , 该收纳孔 11呈规则状的六边形构造。 FIG. 2 is a second embodiment of a light guide plate according to the present invention. It can be clearly seen from the figure that a light guide plate includes a high transmittance plastic plate 1 , and a light source is disposed on the plastic plate 1 . 2 The accommodating hole 11 is accommodated, and the accommodating hole 11 has a regular hexagonal structure.
综上述两实施例， 上述收纳孔 11无论是规则还是不规则状， 均 会因光源 2容置其中， 使光源 2两侧的散射光均可沿收缩孔 11内壁 向塑胶板 1中透射， 进而可充分利用光源两侧散射光， 同时也增加了 其导光面积， 从而更好地提升整体亮度和均匀性。 In the above two embodiments, the receiving holes 11 are arranged in the light source 2, whether they are regular or irregular, so that the scattered light on both sides of the light source 2 can be transmitted to the plastic plate 1 along the inner wall of the shrinking hole 11, and further It can make full use of the scattered light on both sides of the light source, and also increase its light guiding area, thus better improving the overall brightness and uniformity.
以上所述， 仅是本发明一种导光板的较佳实施例而已， 并非对本 发明的技术范围作任何限制， 故凡是依据本发明的技术实质对以上实 施例所作的任何细微修改、 等同变化与修饰，. 均仍属于本发明技术方 案的范围内。
The above description is only a preferred embodiment of the light guide plate of the present invention, and is not intended to limit the technical scope of the present invention. Therefore, any minor modifications and equivalent changes to the above embodiments in accordance with the technical spirit of the present invention are Modifications, are still within the scope of the technical solution of the present invention.
Claims
1、 一种导光板， 包括一高透光率的塑胶板， 其特征在于： 于该 塑胶板上开设有一供光源容置的收纳孔。 A light guide plate comprising a high transmittance plastic plate, wherein: the plastic plate has a receiving hole for receiving the light source.
2、 根据权利要求 1所述的一种导光板， 其特征在于： 该收纳孔 内壁呈多边形构造。 2. A light guide according to claim 1, wherein the inner wall of the receiving hole has a polygonal structure.
3、 根据权利要求 2所述的一种导光板， 其特征在于： 该多边形 呈规则或不规则形状。
3. A light guide according to claim 2, wherein: the polygon has a regular or irregular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2007/002353 WO2009018678A1 (en) | 2007-08-06 | 2007-08-06 | Light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2007/002353 WO2009018678A1 (en) | 2007-08-06 | 2007-08-06 | Light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009018678A1 true WO2009018678A1 (en) | 2009-02-12 |
Family
ID=40340923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2007/002353 WO2009018678A1 (en) | 2007-08-06 | 2007-08-06 | Light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2009018678A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10155619C1 (en) * | 2001-11-13 | 2003-03-27 | Wintek Corp | Photoconductive plate for illuminating keyboard field of electronic product has light guide fields for directing light onto rear of liquid crystal module and for illumination of each key button |
| JP2005268165A (en) * | 2004-03-22 | 2005-09-29 | Citizen Electronics Co Ltd | Lighted key switch |
| CN1909569A (en) * | 2005-08-05 | 2007-02-07 | 鸿富锦精密工业（深圳）有限公司 | Push-button light conducting board |
| CN1932556A (en) * | 2005-09-16 | 2007-03-21 | 鸿富锦精密工业（深圳）有限公司 | Light conducting plate and electronic products using the said plate |
-
2007
- 2007-08-06 WO PCT/CN2007/002353 patent/WO2009018678A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10155619C1 (en) * | 2001-11-13 | 2003-03-27 | Wintek Corp | Photoconductive plate for illuminating keyboard field of electronic product has light guide fields for directing light onto rear of liquid crystal module and for illumination of each key button |
| JP2005268165A (en) * | 2004-03-22 | 2005-09-29 | Citizen Electronics Co Ltd | Lighted key switch |
| CN1909569A (en) * | 2005-08-05 | 2007-02-07 | 鸿富锦精密工业（深圳）有限公司 | Push-button light conducting board |
| CN1932556A (en) * | 2005-09-16 | 2007-03-21 | 鸿富锦精密工业（深圳）有限公司 | Light conducting plate and electronic products using the said plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103411165B (en) | A kind of sidelight type backlight module of uniform in light emission | |
| CN204536695U (en) | A kind of display device | |
| CN202267758U (en) | Light guide plate, backlight source and display device | |
| WO2017173700A1 (en) | Backlight module and liquid crystal display device | |
| US20110249470A1 (en) | Backlight module | |
| CN204204710U (en) | Full key board backlight remote controller | |
| CN202647443U (en) | LED (light emitting diode) backlight module and LED liquid crystal display device | |
| WO2014005326A1 (en) | Liquid crystal display device and backlight module thereof | |
| WO2009018678A1 (en) | Light guide plate | |
| TW201423230A (en) | Backlight module | |
| WO2009100610A1 (en) | Light guiding plate for uniformly emitting light | |
| TW201224362A (en) | Light emitting unit | |
| WO2020191856A1 (en) | Side light-emitting lamp panel and lamp panel splicing assembly | |
| TWI406056B (en) | Backlight module structure | |
| CN203068310U (en) | Backlight module and display device | |
| WO2016183855A1 (en) | Light guide plate, back light module, and liquid crystal display device | |
| CN202091814U (en) | LED lamp | |
| TWI353458B (en) | Light guide plate and backlight module using the s | |
| CN205103525U (en) | Backlight unit and liquid crystal display equipment | |
| CN201311617Y (en) | Illuminated keyboard | |
| CN209590321U (en) | A kind of surface is evenly distributed with the micro nano structure light guide plate of U-type groove | |
| WO2014047984A1 (en) | Backlight module and liquid crystal display device | |
| CN204213748U (en) | Down straight aphototropism mode set and liquid crystal indicator | |
| CN203324500U (en) | Light guiding board with wedge-shaped light incidence structure | |
| CN202110305U (en) | Ultrathin light guide plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07785266 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 07785266 Country of ref document: EP Kind code of ref document: A1 |