CN1485658A - A double-faced light guiding plate and LCD having the same - Google Patents
A double-faced light guiding plate and LCD having the same Download PDFInfo
- Publication number
- CN1485658A CN1485658A CNA021309833A CN02130983A CN1485658A CN 1485658 A CN1485658 A CN 1485658A CN A021309833 A CNA021309833 A CN A021309833A CN 02130983 A CN02130983 A CN 02130983A CN 1485658 A CN1485658 A CN 1485658A
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- guide plate
- light guide
- incidence surface
- separated part
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- Light Guides In General And Applications Therefor (AREA)
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Abstract
The invention discloses a LCD having two-sided luminous light conducting plate, which comprises a light conducting plate, two diffusing films and two liquid crystal display modules arranged on the two light emitting surfaces of the light conducting plate, wherein a plurality of separation portions are arranged inclined to the light conducting plate, thus making light rays entering the light radiation surface to be reflected by the separation plane and projected toward the two light emitting surfaces of the light conducting surface, which is then scattered by the diffusing film to be projected to the two liquid crystal display modules.
Description
Technical field
The present invention relates to a kind of LCD, refer to especially a kind ofly can make single light guide plate produce two exiting surfaces, and the LCD of two required light of LCD MODULE can be provided with double-side light guide plate.
Background technology
As shown in Figure 4, structure for existing a kind of double side liquid crystal display, it mainly is the cold light luminescence component (EL) 71 72 that is provided with two film morphology, to provide two groups of LCD MODULE 73,74 required light respectively, so, can make mobile phone or other use the cover plate of the electronic product of this technology all to have a LCDs in inside and outside.
Above-mentioned structure, can supply in inside and outside the LCDs that form two the same area sizes in identical position of the cover plate of mobile phone or other electronic goods, but, such structure will be used two cold light luminescence components 71,72 with the identical size of LCDs, thus, can make the cost of double side liquid crystal display become quite high, and cold light luminescence component 71,72 can produce the problem of vibration and noise.
If in order to save cost, replace two cold light luminescence components and use two groups of light guide plate instead, though can reduce some costs, but the thickness of whole double side liquid crystal display is increased, and be unfavorable for being configured on the cover plate of mobile phone or PDA, moreover, no matter be to use 71,72 or two groups of light guide plate of two cold light luminescence components, the problem than power consumption can be arranged all.
See also Fig. 5 again, it is the structure of another kind of double side liquid crystal display, it is that not coplanar in the front and rear sections of a light guide plate 81 is provided with a reflecting plate 82,83 respectively, and with respect to the one side of each reflecting plate 82,83 LCD MODULE 84,85 is set in light guide plate 81, make the light source 86 of both sides throw the light that enters in the light guide plate 81, after the process reflection of each reflecting plate 82,83, be projected to two LCD MODULE 84,85 respectively, to provide two LCD MODULE 84,85 required light.
Above-mentioned structure is only used a light guide plate, though can reduce manufacturing cost, but, not coplanar in light guide plate 81 front and rear sections is provided with reflecting plate 82,83 respectively, providing light to two LCD MODULE 84,85, so, these two LCD MODULE 84,85 position is stagger mutually (promptly not overlapped), can't be arranged in same position, therefore, it is bigger that the volume of the double side liquid crystal display of this kind structure can become, and on the unfavorable mobile phone that is disposed at small size; If dwindle whole volume, then relatively must dwindle the area of two LCD MODULE 84,85 and can cause problems such as the content displayed line number is less.
To sum up, two kinds of common double side liquid crystal displays respectively have scarce fraud part at present, thereby are necessary to be improved.
Summary of the invention
The objective of the invention is to improve deficiency of the prior art, provide a kind of make the light that enters by incidence surface can be after the reflection of parting plane and refraction respectively two exiting surfaces towards light guide plate penetrate, to be projected to two LCD MODULE respectively, to reach by what single light guide plate provided two required light of LCD MODULE and have a double-side light guide plate;
Further purpose of the present invention provides and a kind ofly is to make the light that penetrated by exiting surface can scattering, and is projected to two LCD MODULE equably, and that can avoid producing the site has a double-side light guide plate;
Another object of the present invention provides the LCD with above-mentioned double-side light guide plate.
The object of the present invention is achieved like this:
A kind of double-side light guide plate provided by the invention, it comprises:
More than one light source;
A light guide plate, the one side of contiguous this light source of this light guide plate is defined as an incidence surface, and this light guide plate is defined as an exiting surface respectively adjacent to two opposite faces of this incidence surface, and this light guide plate medium dip is distributed with most separated part, respectively the direction that tilts of this separated part is to another exiting surface extending on one side away from incidence surface by incidence surface and one of exiting surface adjacent edge wherein, and each separated part has two parting planes respectively, and the parting plane of contiguous this incidence surface of each separated part is the form of protruding towards this incidence surface.
Wherein, respectively the parting plane of contiguous this incidence surface of this separated part is the arcuation that protrudes towards this incidence surface.
Two exiting surfaces of this light guide plate can be respectively equipped with a diffusion barrier.
LCD with double-side light guide plate provided by the invention, it can also be to comprise:
More than one light source;
A light guide plate, the one side of contiguous this light source of this light guide plate is defined as an incidence surface, and this light guide plate is defined as an exiting surface respectively adjacent to two opposite faces of this incidence surface, and this light guide plate medium dip is distributed with most separated part, respectively the direction of this separated part inclination is to another exiting surface extending on one side away from incidence surface by incidence surface and one of exiting surface adjacent edge wherein, and each separated part has two parting planes respectively, and respectively the parting plane of contiguous this incidence surface of this separated part is to be the form of protruding towards this incidence surface;
Two LCD MODULE, this two LCD MODULE are to be located at two exiting surfaces of this light guide plate respectively.
The above-mentioned LCD with double-side light guide plate, wherein, respectively the parting plane system of contiguous this incidence surface of this separated part also can be the arcuation form that is towards this incidence surface protrusion.
The above-mentioned LCD with double-side light guide plate wherein, also can be provided with a diffusion barrier respectively between two exiting surfaces of this two LCD MODULE and this light guide plate.
Double-side light guide plate provided by the invention, owing to be provided with most these separated part in the light guide plate medium dip, the direction that each separated part tilts is that adjacent edge by incidence surface and an exiting surface wherein is to another exiting surface extending on one side away from incidence surface, and each separated part has two parting planes respectively, and the parting plane of contiguous this incidence surface system is towards the form of incidence surface protrusion in each separated part, therefore, make the light that enters by incidence surface can be after the reflection of parting plane and refraction respectively two exiting surfaces towards light guide plate penetrate, to be projected to two LCD MODULE respectively, reach the effect that two required light of LCD MODULE are provided by single light guide plate.
Be respectively equipped with a diffusion barrier between two exiting surfaces of this two LCD MODULE and this light guide plate, therefore, also just can avoid producing the site via diffusion barrier.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing
Fig. 1 is the structural representation of double side liquid crystal display of the present invention;
Fig. 2 is the synoptic diagram of most separated part of distribution on the positive light guide plate of double side liquid crystal display of the present invention;
Fig. 3 is the structure enlarged drawing of separated part in the light guide plate in the double side liquid crystal display of the present invention and light reflection, refraction and the synoptic diagram that spreads;
Fig. 4 is the structural representation of a kind of double side liquid crystal display of the prior art;
Fig. 5 is the structural representation of another kind of double side liquid crystal display of the prior art.
Embodiment
See also Fig. 1 to Fig. 3, the LCD with double-side light guide plate of present embodiment, it comprises:
A light guide plate 1, this light guide plate 1 contiguous respectively one side of this light source 10 is defined as an incidence surface 11, and this light guide plate 1 is defined as one first exiting surface 12 and one second exiting surface 13 respectively adjacent to two opposite faces of this incidence surface 11, and this light guide plate 1 medium dip is distributed with most separated part 14, respectively the direction that tilts of this separated part 14 is that a adjacent edge 111 by incidence surface 11 and second exiting surface 13 is to one side 121 extensions of first exiting surface 12 away from incidence surface 11, please refer to the 3rd figure, each separated part 14 has two parting planes 141 respectively, 142, and the parting plane 141 of each separated part 14 contiguous these incidence surface 11 is to be the form of protruding towards this incidence surface 11, in this example, it is the protrusion form that is arcuation.
Two groups of LCD MODULE 2, these two groups of LCD MODULE 2 are to be located at first and second exiting surface 12,13 of this light guide plate 1 respectively, and 2 of LCD MODULE of this first and second exiting surface 12,13 and each group are respectively equipped with a diffusion barrier 15.
See also Fig. 3, after the light L of light source 10 enters light guide plate 10 by the incidence surface projection, because light guide plate 10 medium dips are distributed with most separated part 14, and each separated part 14 has two parting planes 141 respectively, 142, and the parting plane 141 of contiguous incidence surface 11 is the arcuation that is protrusion, therefore, when light L projects parting plane 141, because parting plane 141 is the arcuation that is protrusion, therefore, can produce a reflected light L1 towards first exiting surface 12, refract light L2 with exiting surface 13 on one day second, certainly, refract light L2 is at two parting planes 141 of separated part 14,142 projections still can constantly produce reflected light and refract light, and these reflected light and refract light finally all can penetrate towards first exiting surface 12 or second exiting surface 13.
When light when first exiting surface 12 or second exiting surface 13 penetrate, because this first and second exiting surface 12,13 and each 2 of LCD MODULE of group are respectively equipped with a diffusion barrier 15, therefore, can spread projection via diffusion barrier 15 to each group LCD MODULE 2 by 141,142 light that reflect or reflect of two parting planes of each separated part 14, make and respectively organize LCD MODULE 2 and can both obtain backlight uniformly.
LCD with double-side light guide plate of the present invention, first and second exiting surface 12,13 that can make light guide plate 1 is reflection ray all sidedly, therefore, when the present invention is applied to mobile phone or PDA, can form the LCDs of two the same area sizes in inside and outside identical position of cover plate, and only use single light guide plate in the structure of the present invention, therefore, can effectively reduce cost, and can not cause the increase of whole LCD thickness.
In sum, most the separated part 14 of the present invention by being provided with by light guide plate 1 medium dip, penetrate towards first and second exiting surface 12,13 respectively after making two parting planes 141,142 of each separated part 14 enter 11 light reflection and refraction by incidence surface, to be projected to two LCD MODULE 2 respectively, reach the effect that two required light of LCD MODULE are provided by single light guide plate; Moreover, 12,13 of first and second exiting surfaces of this two LCD MODULE 2 and this light guide plate 1 are respectively equipped with a diffusion barrier 15, therefore, making can be via diffusion barrier 15 scattering by the light of first and second exiting surface 12,13 ejaculations, and be projected to two LCD MODULE 2 equably, to avoid producing the site.
Certainly, still there are many examples in the present invention, only has the variation on the details therebetween.For example, two parting planes of each separated part are all made the arcuation that protrudes towards incidence surface; The parting plane that perhaps will be close to incidence surface is designed to taper or form such as trapezoidal, all can produce and the similar effectiveness of previous embodiment, so suchlike equivalent replacement must be subordinate to the present invention's category.
Claims (6)
1, a kind of double-side light guide plate is characterized in that: comprising:
More than one light source;
A light guide plate, the one side of contiguous this light source of this light guide plate is defined as an incidence surface, and this light guide plate is defined as an exiting surface respectively adjacent to two opposite faces of this incidence surface, and this light guide plate medium dip is distributed with most separated part, respectively the direction of this separated part inclination system by incidence surface and one of exiting surface adjacent edge wherein to another exiting surface extending on one side away from incidence surface, and each separated part has two parting planes respectively, and respectively the parting plane system of contiguous this incidence surface of this separated part is towards this incidence surface protrusion division aspect.
2, double-side light guide plate according to claim 1 is characterized in that: wherein, respectively the parting plane of contiguous this incidence surface of this separated part is to be the arcuation that protrudes towards this incidence surface.
3, double-side light guide plate according to claim 1 is characterized in that: wherein, two exiting surfaces of this light guide plate are respectively equipped with a diffusion barrier.
4, a kind of LCD with double-side light guide plate, it is characterized in that: it comprises:
More than one light source;
A light guide plate, the one side of contiguous this light source of this light guide plate is defined as an incidence surface, and this light guide plate is defined as an exiting surface respectively adjacent to two opposite faces of this incidence surface, and this light guide plate medium dip is distributed with most separated part, respectively the direction that tilts of this separated part is to another exiting surface extending on one side away from incidence surface by incidence surface and one of exiting surface adjacent edge wherein, and each separated part has two parting planes respectively, and respectively the parting plane system of contiguous this incidence surface of this separated part is the form of protruding towards this incidence surface;
Two LCD MODULE, this two LCD MODULE system is located at two exiting surfaces of this light guide plate respectively.
5, the LCD with double-side light guide plate according to claim 4 is characterized in that: wherein, respectively the parting plane of contiguous this incidence surface of this separated part is to be the arcuation form of protruding towards this incidence surface.
6, according to claims 4 described LCD, it is characterized in that: wherein, be respectively equipped with a diffusion barrier between two exiting surfaces of this two LCD MODULE and this light guide plate with double-side light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130983 CN1220102C (en) | 2002-09-23 | 2002-09-23 | A double-faced light guiding plate and LCD having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130983 CN1220102C (en) | 2002-09-23 | 2002-09-23 | A double-faced light guiding plate and LCD having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1485658A true CN1485658A (en) | 2004-03-31 |
| CN1220102C CN1220102C (en) | 2005-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02130983 Expired - Fee Related CN1220102C (en) | 2002-09-23 | 2002-09-23 | A double-faced light guiding plate and LCD having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1220102C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405158C (en) * | 2004-08-31 | 2008-07-23 | 鸿富锦精密工业（深圳）有限公司 | Light guide device and backlight module |
| CN102182964A (en) * | 2011-04-29 | 2011-09-14 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN103713351A (en) * | 2012-09-28 | 2014-04-09 | 瑞仪光电股份有限公司 | Light guide element, manufacturing method thereof and lighting lamp |
| US9575235B2 (en) | 2012-09-28 | 2017-02-21 | Radiant Opto-Electronics Corporation | Light guide element and lighting fixture |
| WO2017124608A1 (en) * | 2016-01-18 | 2017-07-27 | 深圳市华星光电技术有限公司 | Double-sided display frame and double-sided display |
| CN111447765A (en) * | 2020-04-30 | 2020-07-24 | 京东方科技集团股份有限公司 | Shell structure and electronic equipment |
-
2002
- 2002-09-23 CN CN 02130983 patent/CN1220102C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405158C (en) * | 2004-08-31 | 2008-07-23 | 鸿富锦精密工业（深圳）有限公司 | Light guide device and backlight module |
| CN102182964A (en) * | 2011-04-29 | 2011-09-14 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN103713351A (en) * | 2012-09-28 | 2014-04-09 | 瑞仪光电股份有限公司 | Light guide element, manufacturing method thereof and lighting lamp |
| CN103713351B (en) * | 2012-09-28 | 2016-01-20 | 瑞仪光电股份有限公司 | Light guide element, manufacturing method thereof and lighting lamp |
| US9575235B2 (en) | 2012-09-28 | 2017-02-21 | Radiant Opto-Electronics Corporation | Light guide element and lighting fixture |
| WO2017124608A1 (en) * | 2016-01-18 | 2017-07-27 | 深圳市华星光电技术有限公司 | Double-sided display frame and double-sided display |
| US10175516B2 (en) | 2016-01-18 | 2019-01-08 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Double side display frame and double side display |
| CN105487274B (en) * | 2016-01-18 | 2019-03-01 | 深圳市华星光电技术有限公司 | Display with double faces frame and display with double faces |
| CN111447765A (en) * | 2020-04-30 | 2020-07-24 | 京东方科技集团股份有限公司 | Shell structure and electronic equipment |
| CN111447765B (en) * | 2020-04-30 | 2021-03-23 | 京东方科技集团股份有限公司 | Shell structure and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1220102C (en) | 2005-09-21 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dongguan Master LCD Monitors Co., Ltd. Assignor: Shenghua Science and Technology Co., Ltd. Contract record no.: 2010990000311 Denomination of invention: A double-faced light guiding plate and LCD having the same Granted publication date: 20050921 License type: Exclusive License Open date: 20040331 Record date: 20100527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050921 Termination date: 20150923 |
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| EXPY | Termination of patent right or utility model |