CN1540407A - Liquid crystal display device with a light guide plate - Google Patents
Liquid crystal display device with a light guide plate Download PDFInfo
- Publication number
- CN1540407A CN1540407A CNA031230202A CN03123020A CN1540407A CN 1540407 A CN1540407 A CN 1540407A CN A031230202 A CNA031230202 A CN A031230202A CN 03123020 A CN03123020 A CN 03123020A CN 1540407 A CN1540407 A CN 1540407A
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- China
- Prior art keywords
- liquid crystal
- crystal display
- light
- normal direction
- reflection
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 22
- 238000009792 diffusion process Methods 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 230000004888 barrier function Effects 0.000 description 15
- 239000003595 mist Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000028527 righting reflex Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
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- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a liquid crystal display, wherein a diffusion film is arranged on one surface of an upper substrate of a liquid crystal display module opposite to a liquid crystal layer, the haze of the diffusion film is between 20% and 60%, a reflecting layer is arranged between a lower substrate of the liquid crystal display module and the liquid crystal layer, the reflecting layer is provided with a plurality of curvature columnar reflecting surfaces which are arranged in parallel and at intervals, light is guided and concentrated to be reflected close to the normal direction through each curvature columnar reflecting surface, the utilization rate of the light in the normal direction is increased, and the forward reflection brightness is improved.
Description
Technical field
The present invention relates to a kind of liquid crystal and show device, refer to especially a kind ofly can utilize environment light source, make reflection ray concentrate on normal direction, to improve the LCD of righting reflex brightness.
Background technology
The structure that present reflection type liquid crystal shows as shown in Figure 5, be in LCD 9, one diffusion barrier 92 to be set with a plane formula reflecting plate 91 collocation, when making ambient light enter LCD 9, scattering through diffusion barrier 92, penetrate into reflecting plate 91 again, then by flat reflecting plate 91 with light reflection, at last via diffusion barrier 92 again scattering once just make light penetrate this LCD 9.
Said structure can avoid LCD 9 to produce the problem that direct reflection causes dazzle and reflects extraneous image because of the surface.But relatively, light can make light reduce widely in the utilization factor of normal direction through incident and outgoing twice totally scattering, and then produces the situation that image is unintelligible and contrast is not good.
For overcoming foregoing problems, industry just someone is developed a kind of reflective liquid-crystal display, and it mainly is the microscopic mirrors (micro-mirror) that many inclinations are set on the reflection horizon, in the hope of increasing the intensity of reflection ray at forward (normally view).
But, make and asymmetric microscopic mirrors structure, the essential gray-level mask that uses costliness on processing procedure, perhaps Fu Za light shield moves and the repeated exposure processing procedure, just can produce and asymmetric microscopic mirrors structure, and its cost of manufacture can increase many.Moreover, inclination and asymmetric microscopic mirrors structure can only cooperate the incident light of injecting from a certain specific direction to reach the effect of increase reflection ray in the intensity of forward, and the incident light of other direction then can't reach increases the effect of reflection ray in the intensity of forward.
Therefore, aforesaid various LCD truly has improved necessity in addition.
Summary of the invention
The objective of the invention is to, solve the above problems and provide a kind of diffusion barrier collocation with suitable mist degree to have the reflection horizon of curvature column structure, and can make reflection ray concentrate on normal direction, to improve the LCD of righting reflex brightness.
For achieving the above object, the present invention takes following technical scheme: LCD, and it comprises:
One LCD MODULE, it has a upper substrate and an infrabasal plate, between this upper and lower substrate and be provided with a liquid crystal layer;
One diffusion barrier, it is located at this upper substrate with respect to this liquid crystal layer simultaneously, and mist degree circle of this diffusion barrier is between 20%～60%;
One reflection horizon, it is located between this infrabasal plate and this liquid crystal layer, and this reflection horizon has most parallel and curvature column reflectings surface that be provided with at interval, by each curvature column reflecting surface ray guidance is concentrated and is approached the normal direction reflection.
The mist degree of described this diffusion barrier is preferably 40%.
The invention has the beneficial effects as follows: light sees through the reflection horizon that the diffusion barrier collocation with suitable mist degree has the curvature column structure, concentrates on normal direction, can improve righting reflex brightness.
Description of drawings
Fig. 1 is a planar structure synoptic diagram of the present invention
Fig. 2 is for being provided with the schematic perspective view of curvature column reflecting surface on the infrabasal plate of the present invention
Fig. 3 concentrates on the synoptic diagram that reflects near normal direction for curvature column reflecting surface directing light of the present invention
Fig. 4 is the opticpath synoptic diagram of LCD of the present invention
Fig. 5 is the opticpath synoptic diagram for the structural representation that existing reflection type liquid crystal shows
Embodiment
As shown in Figure 1 to Figure 3, the LCD that provides of present embodiment comprises:
One LCD MODULE 1, it has a upper substrate 11 and an infrabasal plate 12, and this 11,12 of upper and lower substrate also is provided with a liquid crystal layer 13.
One diffusion barrier 2, it is located at the one side of this upper substrate 11 with respect to this liquid crystal layer 13, and mist degree circle of this diffusion barrier 2 is between 20%～60%, and learns through the inventor's continuous experiment, and the mist degree of this diffusion barrier 2 (Haze) is can obtain preferable effect at 40% o'clock.
One reflection horizon 14, it is to be located between this infrabasal plate 12 and this liquid crystal layer 13, and this reflection horizon 14 has most parallel and curvature column reflectings surface 141 that be provided with at interval, by each curvature column reflecting surface 141 ray guidance is concentrated and is approached the normal direction reflection.
This diffusion barrier 2 is provided with polaroid 32 on a phasic difference version 31 and with respect to the one side of this LCD MODULE 1 is folded in regular turn, and this infrabasal plate 12 is with respect to a then folded in regular turn quarter wave plate 33 and the polaroid 34 once of being provided with of the one side in this reflection horizon 14.
As shown in Figure 2, the production method of the curvature column reflecting surface 141 on this reflection horizon 14, be prior to being coated with photoresistance on the infrabasal plate 12, and with exposure in the gold-tinted processing procedure, development and hot flowage (reflow) supervisor, photoresistance on the infrabasal plate 12 is made most parallel and curvature column structures (stripe) 121 that be provided with at interval, this reflection horizon 14 is established in plating on this infrabasal plate 12 and curvature column structure again, can obtain above-mentioned a plurality of parallel and curvature column reflecting surface 141 that be provided with at interval.
As previously mentioned, the effect of diffusion barrier 2 is the generations that will avoid the direct reflection problem, does not add at this and gives unnecessary details.A plurality of curvature column reflectings surface 141 in this reflection horizon 14 then can be because of the characteristic on its circular-arc surface, make light L1, the L2 of different directions, as shown in Figure 3 and Figure 4, all be guided and form the reflected light L1 ' and L2 ' that approaches normal direction A, that is, former being introduced into after the LCD by the light of 2 scatterings of diffusion barrier, just can be concentrated near normal direction A because of the reflection of the most curvature column reflectings surface 141 of process and be penetrated, thus, just can increase the utilization factor of light, and have preferable reflecting brightness in normal direction.
In sum, the present invention is reflected and reflection ray is concentrated near normal direction, and can be increased the utilization factor of light in normal direction, to reach the effect that improves righting reflex brightness with the diffusion barrier 2 collocation curvature column reflectings surface 141 of suitable mist degree.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031230202A CN1540407A (en) | 2003-04-25 | 2003-04-25 | Liquid crystal display device with a light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031230202A CN1540407A (en) | 2003-04-25 | 2003-04-25 | Liquid crystal display device with a light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1540407A true CN1540407A (en) | 2004-10-27 |
Family
ID=34321185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031230202A Pending CN1540407A (en) | 2003-04-25 | 2003-04-25 | Liquid crystal display device with a light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1540407A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608683A (en) * | 2012-04-13 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflector forming method and reflective liquid crystal display prepared by adopting method |
| US8913218B2 (en) | 2012-04-13 | 2014-12-16 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Method for forming reflector and reflective liquid crystal display manufactured with same |
| CN112711139A (en) * | 2021-01-04 | 2021-04-27 | 业成科技（成都）有限公司 | Near-to-eye display device and optical system thereof |
-
2003
- 2003-04-25 CN CNA031230202A patent/CN1540407A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608683A (en) * | 2012-04-13 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflector forming method and reflective liquid crystal display prepared by adopting method |
| US8913218B2 (en) | 2012-04-13 | 2014-12-16 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Method for forming reflector and reflective liquid crystal display manufactured with same |
| CN112711139A (en) * | 2021-01-04 | 2021-04-27 | 业成科技（成都）有限公司 | Near-to-eye display device and optical system thereof |
| CN112711139B (en) * | 2021-01-04 | 2023-04-11 | 业成科技（成都）有限公司 | Near-to-eye display device and optical system thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |