CN1260602C - Double-sided liquid crystal display device - Google Patents
Double-sided liquid crystal display device Download PDFInfo
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- CN1260602C CN1260602C CN 02130984 CN02130984A CN1260602C CN 1260602 C CN1260602 C CN 1260602C CN 02130984 CN02130984 CN 02130984 CN 02130984 A CN02130984 A CN 02130984A CN 1260602 C CN1260602 C CN 1260602C
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- light
- guide plate
- light guide
- liquid crystal
- crystal display
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 27
- 238000009792 diffusion process Methods 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 10
- 238000004020 luminiscence type Methods 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a double-sided liquid crystal display device, which comprises: more than one light source; one side of the light guide plate adjacent to the light source is defined as a light incident surface, two parallel surfaces of the light guide plate adjacent to the light incident surface are respectively defined as a light emergent surface, and a plurality of concave parts are distributed on one of the light emergent surfaces; and the two liquid crystal display modules are respectively arranged on the two light emergent surfaces of the light guide plate. The double-sided liquid crystal display device of the invention enables the light entering from the light incident surface to be reflected and refracted by the concave part and then to be respectively emitted towards the two light emergent surfaces of the light guide plate and to be respectively projected to the two liquid crystal display modules.
Description
Technical field
The present invention relates to a kind of double-sided liquid crystal display device, refer to especially a kind ofly can make single light guide plate produce two exiting surfaces, and the double-sided liquid crystal display device of two required light of LCD MODULE can be provided.
Background technology
As shown in Figure 4, structure for a kind of double-sided liquid crystal display device of commonly using, it mainly is provided with the cold light luminescence component (EL) 71,72 of 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 goods 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 the cold light luminescence component 71,72 of two identical sizes with LCDs, thus, can make the cost of double-sided liquid crystal display device 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-sided liquid crystal display device is increased, and be unfavorable for being configured on the cover plate of mobile phone or other electronic goods, 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.
As shown in Figure 5, it is the structure of another kind of double-sided liquid crystal display device, its 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 each reflecting plate 82,83 LCD MODULE 84,85 is set simultaneously 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, only use a light guide plate, though can reduce manufacturing cost,, not coplanar in light guide plate 81 front and rear sections is provided with reflecting plate 82,83 respectively, to provide light, so the position of these two LCD MODULE 84,85 is stagger mutually (promptly not overlapped) to two LCD MODULE 84,85, can't be arranged in same position, therefore, it is bigger that the volume of the double-sided liquid crystal display device 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, hold problems such as line number is less within the demonstration and can cause.
To sum up, two kinds of common double-sided liquid crystal display devices respectively have scarce fraud part at present, thereby are necessary to be improved.
Summary of the invention
The present invention's fundamental purpose is to provide a kind of double-sided liquid crystal display device that the effect of two required light of LCD MODULE is provided by single light guide plate that has.
The present invention's a time purpose is to provide a kind of light that is penetrated by exiting surface that makes to be projected to two LCD MODULE equably, and can avoid producing the double-sided liquid crystal display device of site.
For achieving the above object, the present invention takes following design proposal: a kind of double-sided liquid crystal display device 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 parallel surfaces of this incidence surface, and be distributed with most recess in one of them exiting surface; Two LCD MODULE, this two LCD MODULE are located at two exiting surfaces of this light guide plate respectively.
Respectively this recess is the recessed form of arcuation.
Be respectively equipped with a diffusion barrier between two exiting surfaces of this light guide plate and two LCD MODULE.
Advantage of the present invention is: 1, double-sided liquid crystal display device of the present invention, and 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 parallel surfaces of this incidence surface, and be distributed with most recess in one of them exiting surface; Two LCD MODULE, this two LCD MODULE are located at two exiting surfaces of this light guide plate respectively.After the light of light source enters light guide plate by incidence surface, have light partly and be projeced into recess on second exiting surface, because each recess all is the form of arcuation indent, therefore, can produce a reflected light towards first exiting surface, refract light with exiting surface on one day second, the light that enters in the light guide plate also has part can directly be projeced into first exiting surface or second exiting surface, no matter and ray cast all can produce reflected light and refract light in first exiting surface or second exiting surface, and these reflected light and refract light can constantly reflect in light guide plate, refraction, make the light in the light guide plate more evenly and not can concentrate on leading portion, and these reflected light and refract light finally all can penetrate towards first exiting surface or second exiting surface.2, be respectively equipped with a diffusion barrier between two of the light guide plate of double-sided liquid crystal display device of the present invention exiting surfaces and two LCD MODULE, therefore, reflected or the light that reflects can spread projection via diffusion barrier and organizes LCD MODULE to each by each recess, it is backlight uniformly that each LCD MODULE can both be obtained.
Description of drawings
Fig. 1 is the present invention's structural representation
Fig. 2 is the synoptic diagram of most the recess that distribute on the present invention's the light guide plate
Fig. 3 is the structure enlarged drawing of recess in the light guide plate of the present invention and the synoptic diagram of light reflection, refraction and diffusion
Fig. 4 is the structure of a kind of double-sided liquid crystal display device of commonly using
Fig. 5 is the structure of the another kind of double-sided liquid crystal display device commonly used
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the double-sided liquid crystal display device 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 parallel surfaces of this incidence surface 11, and be distributed with most recess 14 on this second exiting surface 13, in this example, each recess 14 is the form of arcuation indent, and the diameter of each recess 14 is below 50 μ m.
Two groups of LCD MODULE 2, these two groups of LCD MODULE 2 are located at first and second exiting surface 12,13 of this light guide plate 1 respectively, and this first and second exiting surface 12,13 and respectively 2 of this LCD MODULE be respectively equipped with a diffusion barrier 15.
As shown in Figure 3, after the light L of light source 10 enters light guide plate 1 by incidence surface 11, have light partly and be projeced into recess 14 on second exiting surface 13, because each recess 14 all is the form of arcuation indent, 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 also has reflex partly between recess 14 and diffusion barrier 15, make light directive recess 14 again, and can produce reflected light and refract light etc. more respectively, and these reflected light and refract light finally all can penetrate towards first exiting surface 12 or second exiting surface 13.
The light L that enters in the light guide plate 1 also has part can directly be projeced into first exiting surface 12 or second exiting surface 13, no matter and light L is projeced into first exiting surface 12 or second exiting surface 13 all can produce reflected light and refract light, and these reflected light and refract light can constantly reflect, reflect in light guide plate 1, make the light in the light guide plate 1 more evenly and not can concentrate on leading portion, 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, reflected or the light that reflects can spread projection via diffusion barrier 15 to each group LCD MODULE 2 by each recess 14, it is backlight uniformly that each LCD MODULE 2 can both be obtained.
The present invention's liquid crystal indicator with double-side light guide plate, 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 other electronic goods, 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 present invention's the structure, therefore, can effectively reduce cost, save electric energy, and can not cause the increase of entire liquid crystal display device thickness.
In sum, the present invention is because most the recess 14 that distribute on second exiting surface 13 of light guide plate 1, penetrate towards first and second exiting surface 12,13 respectively after making each recess 14 reflect by the light that incidence surface 11 enters and to reflect, to be projected to two LCD MODULE 2 respectively, reach the effect that two LCD MODULE 2 required light 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, in order to do making the light that penetrates by first and second exiting surface 12,13 can be, and be projected to two LCD MODULE 2 equably, to avoid producing the site via diffusion barrier 15 scatterings.
Certainly, still there are many examples in the present invention, therebetween the only variation on the details.For example, recess is designed to taper or form such as trapezoidal, all can produces and the similar effectiveness of previous embodiment, so suchlike equivalent replacement must be subordinate to the present invention's category.
Claims (3)
1, a kind of double-sided liquid crystal display device, 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 parallel surfaces of this incidence surface, and be distributed with most recess in an exiting surface wherein;
Two groups of LCD MODULE, these two groups of LCD MODULE are located at two exiting surfaces of this light guide plate respectively.
2, double-sided liquid crystal display device as claimed in claim 1 is characterized in that: respectively this recess is the recessed form of arcuation.
3, double-sided liquid crystal display device as claimed in claim 1 is characterized in that: be respectively equipped with a diffusion barrier between two exiting surfaces of this light guide plate and two groups of LCD MODULE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130984 CN1260602C (en) | 2002-09-23 | 2002-09-23 | Double-sided liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130984 CN1260602C (en) | 2002-09-23 | 2002-09-23 | Double-sided liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1485659A CN1485659A (en) | 2004-03-31 |
| CN1260602C true CN1260602C (en) | 2006-06-21 |
Family
ID=34144715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02130984 Expired - Fee Related CN1260602C (en) | 2002-09-23 | 2002-09-23 | Double-sided liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260602C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435539C (en) * | 2004-10-29 | 2008-11-19 | 华生科技股份有限公司 | Folding mobile telephone |
| CN101533177B (en) * | 2005-01-06 | 2011-03-16 | 友达光电股份有限公司 | Portable electronic device and its double-sided liquid crystal display device |
| CN104376796A (en) * | 2014-11-17 | 2015-02-25 | 深圳市华星光电技术有限公司 | Transparent display device |
| 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 |
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2002
- 2002-09-23 CN CN 02130984 patent/CN1260602C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1485659A (en) | 2004-03-31 |
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