CN203422538U - Reflecting LCD based on dyeing liquid crystal - Google Patents
Reflecting LCD based on dyeing liquid crystal Download PDFInfo
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- CN203422538U CN203422538U CN201320423831.0U CN201320423831U CN203422538U CN 203422538 U CN203422538 U CN 203422538U CN 201320423831 U CN201320423831 U CN 201320423831U CN 203422538 U CN203422538 U CN 203422538U
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- dyeing liquid
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- dyeing
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Abstract
The utility model discloses a reflecting LCD based on dyeing liquid crystal. The reflecting LCD comprises a transmission light polarizing layer and a light polarizing reflecting layer, and a dyeing liquid crystal layer is arranged between the transmission light polarizing layer and the light polarizing reflecting layer. A backlight source is not needed due to the fact that the dyeing liquid crystal is used in cooperation with the light polarizing reflecting layer, clear black patterns or characters can be displayed through outside lamplight or natural light, different background colors can be achieved, and the background colors are related to the colors of the dyeing liquid crystal. The effect of white characters on a black background can also be achieved. By means of the scheme of the reflecting LCD based on the dyeing liquid crystal, the structure is more simple, properties can be greatly improved, the reflecting LCD has a very large advantage on cost, and automatic production can be achieved. The reflecting LCD overcomes the defects that the quality of orange paper is unstable and production cannot be carried out automatically. Great improvement is achieved for meeting the requirements for product high cost performance of a market.
Description
Technical field
The utility model relates to dyeing field of liquid crystal display, particularly the reflective LCD based on dyeing liquid crystal.
Background technology
Existingly be with coloured LCD, normally after transmission type LCD, fit colored silk printing paper or film as orange paper, blue paper, to reach different background colours, but adding upper and lower polaroid, this technology has four-layer structure, structure is more complicated, and to lean on double faced adhesive tape because orange hard copy body weatherability is poor, bonding, therefore the hidden danger such as poor reliability existence easily comes off, simultaneously, the mode that adopts colored paster need to manually be pasted when producing, and not only quality does not reach precisely, and can not automated production, production cost is high, and production efficiency is low.There is in the market the LCD that utilizes dyeing liquid crystal and the collocation of transmission optics sheet to use, but this scheme mostly utilize its blue dyes or cudbear by the transmission sheet of arranging in pairs or groups up and down to realize the effect of black background look white font, the display effect that there is no color background look black font, display effect is not ideal.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of reflective LCD based on dyeing liquid crystal that adopts color liquid crystal collocation catoptrics sheet.
The technical scheme that the invention for solving the technical problem adopts is:
Reflective LCD based on dyeing liquid crystal, comprises transmission polarizing layer and polarisation reflection horizon, and is arranged at the dyeing liquor crystal layer between transmission polarizing layer and polarisation reflection horizon.
Further, the optically-active angle of described dyeing liquor crystal layer under ON state is 0 °.
Be further used as above-mentioned wherein a kind of improvement, described polarisation reflection horizon is polarisation reflector plate, and described polarisation reflector plate comprises and is arranged at dyeing liquor crystal layer below, the polarization direction polaroid contrary with transmission polarizing layer and is arranged at the reflectance coating below polaroid.
Further, the top of described polaroid is also disposed with diffusion adhesive coating and stripping film.
Being further used as above-mentioned another kind improves, described polarisation reflection horizon is catoptrics sheet, and described catoptrics sheet comprises and is arranged at dyeing liquor crystal layer below, the polarization by reflection direction reflective polarizer films identical with transmission polarizing layer and is arranged at the black film below reflective polarizer films.
Further, the below of described black film is provided with between diaphragm, reflective polarizer films and black film and is provided with TAC diaphragm, and the top of reflective polarizer films is provided with stripping film.
The beneficial effects of the utility model are: the reflective LCD based on dyeing liquid crystal that the utility model adopts, collocation by dyeing liquid crystal and polarisation reflection horizon is used, do not need back light, by extraneous light or natural light, get final product black pattern or the word of clear display, and can realize different background colors, background colour is relevant with dyeing liquid crystal color.Also can realize black background look white font.Reflective LCD scheme by dyeing liquid crystal is not only structurally more succinct, and has very large lifting at each aspect of performance, and on cost, also tool has great advantage, and can realize automated production.It is unstable that new departure has improved orange paper scheme quality, shortcoming that can not automated production.For meeting market, the demand of the high performance-price ratio of product is greatly improved.The reflective-mode of dyeing liquid crystal can be widely used in consumption appliance series products, as LCD intelligent electric cooker, and intelligent air condition, the personalized products such as Intelligent microwave stove, meet consumer's different demands.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Fig. 1 is the index path under the utility model embodiment 1 OFF state.
Fig. 2 is the index path under the utility model embodiment 1 ON state.
Fig. 3 is the structural representation of the utility model embodiment 1 polarisation reflector plate.
Fig. 4 is the index path under the utility model embodiment 2 OFF state.
Fig. 5 is the index path under the utility model embodiment 2 ON states.
Fig. 6 is the structural representation of the utility model embodiment 2 catoptrics sheets.
Embodiment
Shown in Fig. 1-Fig. 3, the reflective LCD the first embodiment of the utility model based on dyeing liquid crystal, comprises transmission polarizing layer 1 and polarisation reflection horizon 3, and is arranged at the dyeing liquor crystal layer 2 between transmission polarizing layer 1 and polarisation reflection horizon 3.The optically-active angle of described dyeing liquor crystal layer 2 under ON state is 0 °.Wherein said polarisation reflection horizon 3 is polarisation reflector plate, described polarisation reflector plate comprises the reflectance coating 32 that is arranged at dyeing liquor crystal layer 2 belows, the polarization direction polaroid 31 contrary with transmission polarizing layer 1 and is arranged at polaroid 31 belows, and described below observes the direction of LCD consistent with human eye herein.
Further, in order to improve the performance of LCD, the top of described polaroid 31 is also disposed with diffusion adhesive coating 33 and stripping film 34.
Shown in Fig. 1, described dyeing liquor crystal layer 2 is in OFF state, presenting of LCD background color is to utilize the result of LCD OFF state dyeing liquid crystal to the effect of light, ambient light is by transmission polarizing layer 1, in the present embodiment, the polarization direction of transmission polarizing layer 1 is parallel with paper, the light consistent with transmission polarizing layer 1 polarization direction is by transmission polarizing layer 1, dyed liquid crystal layer 2, utilize the optical activity of dyeing liquid crystal by polarized light direction of vibration half-twist, described direction of vibration is vertical with paper, consistent with the polarization direction of polaroid 31, light is by the polaroid 31 of polarisation reflector plate, the light that is reflected back identical polarization direction through reflectance coating 32 is again approach dyeing dyeing liquor crystal layer 2 half-twists again, by projection polarizing layer, incide human eye.In this process, utilize the dichroism of dyeing liquid crystal, the wide part of transmission and reflection is the color of dyeing liquid crystal, and its complementary colors is " absorbed ".So the background color that human eye is seen is the dyeing liquid crystal color after strengthening.
Presenting of font color is to utilize the result of liquid crystal to the effect of light that dye under LCD ON state.As shown in Figure 2, dyeing liquor crystal layer 2 is in ON state, ambient light is by transmission polarizing layer 1, the light consistent with transmission polarizing layer 1 polarization direction passes through, and due to the liquid crystal molecule homeotropic alignment of dyeing liquor crystal layer 2 at this moment, the optical activity of dyeing liquor crystal layer 2 disappears, radiation direction after dyeing liquor crystal layer 2 is constant, therefore polarized light cannot pass through polaroid 31, and reflectance coating 32 cannot reflection ray, so human eye sees, is black font.This schematic diagram presents the display effect of color background look black font.
With reference to shown in Fig. 4 to 6, for the second embodiment of the present utility model, places different from the first embodiment in structure are, described polarisation reflection horizon 3 is catoptrics sheet, and described catoptrics sheet comprises the black film 36 that is arranged at dyeing liquor crystal layer 2 belows, the polarization by reflection direction reflective polarizer films 35 identical with transmission polarizing layer 1 and is arranged at reflective polarizer films 35 belows.
Further, in order to improve the performance of LCD, the below of described black film 36 is provided with between diaphragm 37, reflective polarizer films 35 and black film 36 and is provided with TAC diaphragm 38, and the top of reflective polarizer films 35 is provided with stripping film 34.
Shown in Fig. 4, described dyeing liquor crystal layer 2 is in OFF state, presenting of LCD background color is to utilize the result of LCD OFF state dyeing liquid crystal to the effect of light, ambient light sees through transmission polarizing layer 1, the light consistent with transmission polarizing layer 1 polarization direction is by transmission polarizing layer 1, in the present embodiment, the polarization direction of transmission polarizing layer 1 is parallel with paper, the light consistent with transmission polarizing layer 1 polarization direction is by transmission polarizing layer 1, dyed liquid crystal layer 2, utilize the optical activity of dyeing liquid crystal by polarized light direction of vibration half-twist, described direction of vibration is vertical with paper, because the polarization by reflection direction of reflective polarizer films 35 is consistent with transmission polarizing layer 1 parallel with paper, therefore the light that light cannot be reflected back identical polarization direction by reflective polarizer films 35 is approach dyeing liquor crystal layer 2 again, half-twist, by transmission polarizing layer 1, incide human eye.In this process, utilize the dichroism of dyeing liquid crystal, the wide part of transmission and reflection is the color of dyeing liquid crystal, and its complementary colors is " absorbed ".So the background color that human eye is seen is the dyeing liquid crystal color after strengthening.Presenting of font color is to utilize the result of liquid crystal to the effect of light that dye under LCD ON state.
Shown in Fig. 5, described dyeing liquor crystal layer 2 is in ON state, ambient light is by transmission polarizing layer 1, and the light consistent with transmission polarizing layer 1 polarization direction passes through, and dyeing liquor crystal layer 2 is due to liquid crystal molecule homeotropic alignment, the optical activity of dyeing liquor crystal layer 2 disappears, radiation direction after dyeing liquor crystal layer 2 is constant, and polarized light is by reflective polarizer films 35, and the black film 36 that is reflected optical sheet absorbs, cannot reflection ray, so human eye sees, be black font.This schematic diagram presents the display effect of color background look black font.
Distortion in the utility model (comprising high twist, supertwist) nematic phase reflective LCD collocation dyeing liquid crystal as orange, red, blueness under external light source, under reflective condition, be that the beautiful display effect of dazzling of colored bottom surplus is as orange end surplus, the surplus of the red end, indigo plant end surplus.
Different dye concentration, different birefraction (△ n) the liquid crystal thick and different distortion angle of different boxes of can arranging in pairs or groups can be realized the display effect that the background color depth is different, dye strength can be from 0.1% ~ 5%, liquid crystal birefringence rate (△ n) can be from 0.07 ~ 0.25, the thick scope of box can be from 2.5 microns to 50 microns, distortion angle can be from 30 ° to 270 °, above all belonging in scope of the present utility model.
Different colours dye liquid crystal can be realized different background chromatic effect, as orange background surplus, blue background surplus, green background surplus, red background surplus etc., all belongs within the scope of the utility model above.
The above, be preferred embodiment of the present utility model, and the utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Claims (5)
1. the reflective LCD based on dyeing liquid crystal, is characterized in that: comprise transmission polarizing layer (1) and polarisation reflection horizon (3), and be arranged at the dyeing liquor crystal layer (2) between transmission polarizing layer (1) and polarisation reflection horizon (3).
According to claim 1 based on dyeing liquid crystal reflective LCD, it is characterized in that: described polarisation reflection horizon (3) is for polarisation reflector plate, described polarisation reflector plate comprises and is arranged at dyeing liquor crystal layer (2) below, the polarization direction polaroid (31) contrary with transmission polarizing layer (1) and is arranged at the reflectance coating (32) below polaroid (31).
3. the reflective LCD based on dyeing liquid crystal according to claim 2, is characterized in that: the top of described polaroid (31) is also disposed with diffusion adhesive coating (33) and stripping film (34).
According to claim 1 based on dyeing liquid crystal reflective LCD, it is characterized in that: described polarisation reflection horizon (3) is for catoptrics sheet, described catoptrics sheet comprises and is arranged at dyeing liquor crystal layer (2) below, the polarization by reflection direction reflective polarizer films (35) identical with transmission polarizing layer (1) and is arranged at the black film (36) below reflective polarizer films (35).
According to claim 4 based on dyeing liquid crystal reflective LCD; it is characterized in that: the below of described black film (36) is provided with diaphragm (37); between reflective polarizer films (35) and black film (36), be provided with TAC diaphragm (38), the top of reflective polarizer films (35) is provided with stripping film (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423831.0U CN203422538U (en) | 2013-07-16 | 2013-07-16 | Reflecting LCD based on dyeing liquid crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423831.0U CN203422538U (en) | 2013-07-16 | 2013-07-16 | Reflecting LCD based on dyeing liquid crystal |
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| Publication Number | Publication Date |
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| CN203422538U true CN203422538U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320423831.0U Expired - Lifetime CN203422538U (en) | 2013-07-16 | 2013-07-16 | Reflecting LCD based on dyeing liquid crystal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622467A (en) * | 2020-12-18 | 2021-04-09 | 广州市人民印刷厂股份有限公司 | Preparation method of angle-dependent color-changing polarization hidden image-text |
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2013
- 2013-07-16 CN CN201320423831.0U patent/CN203422538U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622467A (en) * | 2020-12-18 | 2021-04-09 | 广州市人民印刷厂股份有限公司 | Preparation method of angle-dependent color-changing polarization hidden image-text |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
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| CX01 | Expiry of patent term |