CN201788333U - Bistable LCD - Google Patents
Bistable LCD Download PDFInfo
- Publication number
- CN201788333U CN201788333U CN2010202864462U CN201020286446U CN201788333U CN 201788333 U CN201788333 U CN 201788333U CN 2010202864462 U CN2010202864462 U CN 2010202864462U CN 201020286446 U CN201020286446 U CN 201020286446U CN 201788333 U CN201788333 U CN 201788333U
- Authority
- CN
- China
- Prior art keywords
- glass substrate
- liquid crystal
- crystal display
- lower glass
- inner chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011521 glass Substances 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 45
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 34
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 claims abstract description 13
- 238000003854 Surface Print Methods 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005684 electric field Effects 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 abstract 1
- 210000002858 crystal cell Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000028161 membrane depolarization Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model relates to a liquid crystal display technical field especially relates to bistable state liquid crystal display, and it includes that being parallel to each other and corresponding the last glass substrate of configuration and lower glass substrate go up glass substrate and be equipped with sealed glue down all around between the glass substrate, go up glass substrate, lower glass substrate and sealed airtight inner chamber of formation of gluing, the intussuseption of airtight inner chamber is filled with cholesteric liquid crystal, the surface printing of lower glass substrate has the absorbed layer. Bistable state LCD, its display mode does not need polaroid and is shaded from the sun, the image can keep for a long time under the condition that does not have the electric field, the low power dissipation has good readability indoors and outdoors, the visual angle is big, can realize different colour display, has higher display capacity than ordinary liquid crystal display.
Description
Technical field:
The utility model relates to technical field of liquid crystal display, relates in particular to bistable liquid crystal display.
Background technology:
In the prior art, common LCD generally comprises by two-layer transparent glass substrate and is enclosed in liquid crystal layer between the layer glass substrate and liquid crystal cell that electrode etc. constitutes, all posts one deck polaroid at two outside surfaces of liquid crystal cell.Its displaying principle is, natural light is filtered into linearly polarized photon after through a polaroid, because the distortion pitch of liquid crystal molecule in box is much bigger more than visible wavelength, so after the linearly polarized photon incident of or quadrature consistent with the Liquid Crystal Molecules Alignment direction, its polarization direction is twisting 90 ° through meeting behind the whole liquid crystal layer, penetrated by opposite side then, orthogonal polarizers plays the effect of printing opacity; If on liquid crystal cell, apply the voltage of certain value, the liquid crystal major axis begins to tilt along direction of an electric field, after voltage reaches about twice threshold voltage, except that the liquid crystal molecule of electrode surface, liquid crystal molecule in all liquid crystal cells between two electrodes all becomes the arrangement again along direction of an electric field, at this moment the defunctionalization of 90 ° of optically-actives has lost the optically-active effect between orthogonal polarizers, makes the device can not printing opacity.If use parallel polaroid then opposite.Utilize way to make light change its saturating and hide state just, thereby realize showing to liquid crystal cell energising or outage.
Common LCD such as common ultra-twist liquid crystal display screen (STN-LCD) just must constantly refresh picture when needing only the LCD display pattern, and supply of electrical energy just can not show in case cut off the power supply constantly, and great majority need collocation use backlight; In addition, upper and lower glass substrate outside all needs to paste the higher polaroid of one deck cost, and display effect can be subjected to the restriction of viewing angle, and the capacity of display is limited.
The utility model content:
The purpose of this utility model is at the deficiencies in the prior art, and a kind of bistable liquid crystal display is provided, and it can show long-term and stably still that under the situation of outage and low in energy consumption, the visual angle is big, and the capacity of display is higher.
For achieving the above object, the utility model is by the following technical solutions:
Bistable liquid crystal display, it comprises and being parallel to each other and the top glass substrate and the lower glass substrate of corresponding configuration, be provided with fluid sealant around between top glass substrate and the lower glass substrate, described top glass substrate, lower glass substrate and fluid sealant sealing form airtight inner chamber, be filled with cholesteric liquid crystal in the airtight inner chamber, the outside surface of described lower glass substrate is printed with absorption layer.
The inside surface that described top glass substrate and lower glass substrate are positioned at airtight inner chamber one side is equipped with electrode.
The surface printing of described electrode has one deck and the contacted alignment film of cholesteric liquid crystal.
Also be filled with some sarks in the described airtight inner chamber.
Described absorption layer is an ink lay.
The utility model beneficial effect is:
Bistable liquid crystal display described in the utility model, it comprises and being parallel to each other and the top glass substrate and the lower glass substrate of corresponding configuration, be provided with fluid sealant around between top glass substrate and the lower glass substrate, described top glass substrate, lower glass substrate and fluid sealant sealing form airtight inner chamber, be filled with cholesteric liquid crystal in the airtight inner chamber, the outside surface of described lower glass substrate is printed with absorption layer.Adopt the bistable liquid crystal display of said structure, its display mode does not need polaroid and backlight, image can keep under the situation of electric field for a long time not having, low in energy consumption, indoor and outdoor good readability arranged, the visual angle is big, can realize that different colors shows than common liquid crystals display screen the higher capacity of display is arranged.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fundamental diagram when Fig. 2 is bright attitude for the utility model;
Fundamental diagram when Fig. 3 is dark attitude for the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, bistable liquid crystal display, it comprises and being parallel to each other and the top glass substrate 1 and the lower glass substrate 2 of corresponding configuration, be provided with fluid sealant 3 around between top glass substrate 1 and the lower glass substrate 2, described top glass substrate 1, lower glass substrate 2 and fluid sealant 3 sealings form airtight inner chamber, are filled with cholesteric liquid crystal 5 in the airtight inner chamber.The outside surface of described lower glass substrate 2 is printed with absorption layer 8, and the color of absorption layer 8 is a black, and as preferred embodiment, described absorption layer 8 is an ink lay; The inside surface that described top glass substrate 1 and lower glass substrate 2 are positioned at airtight inner chamber one side is equipped with electrode 4; The surface printing of described electrode 4 has one deck and cholesteric liquid crystal 5 contacted alignment films 6, and this alignment film 6 is without polishing; Also be filled with some sarks 7 that are used to support appropriate space in the described airtight inner chamber.
Above-mentioned bistable liquid crystal display, its principle of work is, because the spiral layers structure of cholesteric liquid crystal 5 inside, it can reflect the light of wavelength in the certain limit, the width of general reflection wavelength is at 50～90nm, its catoptrical wavelength depends primarily on the double refractive inde and the pitch of cholesteric liquid crystal 5, foveal reflex wavelength X 0=1/2*P*n/ /+n ⊥, the range delta lambda of reflection wavelength=P* Δ n.At the back side of LCD is the absorption layer 8 of outside surface printing one deck black of lower glass substrate 2, and the light transmission LCD absorbed layer 8 that is not reflected absorbs.At this moment, people can see is near the very strong reflected light of certain color λ 0 wavelength, is referred to as bright attitude (planar state), the fundamental diagram when being illustrated in figure 2 as bright attitude.When cholesteric liquid crystal 5 is state at random fully, because the liquid crystal layer that cholesteric liquid crystal 5 forms is very thin, can not form enough strong selection reflection this moment, outside the scattering of depolarization fraction, most of light then all is black through LCD is absorbed by the absorption layer 8 of black, be referred to as dark attitude (focal conic state), the fundamental diagram when being illustrated in figure 3 as dark attitude.During bistable state showed, cholesteric liquid crystal 5 can have three kinds of ordered states in box, and wherein above-mentioned bright attitude and dark attitude are not having can to stablize long-time existence under the situation of electric field.
In sum, bistable liquid crystal display described in the utility model, its display mode does not need polaroid and backlight, image can keep under the situation of electric field for a long time not having, low in energy consumption, indoor and outdoor good readability arranged, the visual angle is big, can realize that different colors shows than common liquid crystals display screen the higher capacity of display is arranged.
The above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1. bistable liquid crystal display, it comprises and being parallel to each other and the top glass substrate (1) and the lower glass substrate (2) of corresponding configuration, it is characterized in that: be provided with fluid sealant (3) around between top glass substrate (1) and the lower glass substrate (2), described top glass substrate (1), lower glass substrate (2) and fluid sealant (3) sealing form airtight inner chamber, be filled with cholesteric liquid crystal (5) in the airtight inner chamber, the outside surface of described lower glass substrate (2) is printed with absorption layer (8).
2. bistable liquid crystal display according to claim 1 is characterized in that: the inside surface that described top glass substrate (1) and lower glass substrate (2) are positioned at airtight inner chamber one side is equipped with electrode (4).
3. bistable liquid crystal display according to claim 2 is characterized in that: the surface printing of described electrode (4) has one deck and the contacted alignment film of cholesteric liquid crystal (5) (6).
4. bistable liquid crystal display according to claim 3 is characterized in that: also be filled with some sarks (7) in the described airtight inner chamber.
5. bistable liquid crystal display according to claim 4 is characterized in that: described absorption layer (8) is an ink lay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202864462U CN201788333U (en) | 2010-08-09 | 2010-08-09 | Bistable LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202864462U CN201788333U (en) | 2010-08-09 | 2010-08-09 | Bistable LCD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788333U true CN201788333U (en) | 2011-04-06 |
Family
ID=43820292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202864462U Expired - Lifetime CN201788333U (en) | 2010-08-09 | 2010-08-09 | Bistable LCD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788333U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615894A (en) * | 2012-03-15 | 2012-08-01 | 天津大学 | Flexible liquid crystal thin film and preparation method thereof |
| CN105140266A (en) * | 2015-09-29 | 2015-12-09 | 北京维信诺光电技术有限公司 | OLED display screen |
| CN107065284A (en) * | 2017-04-27 | 2017-08-18 | 中国科学院长春光学精密机械与物理研究所 | A kind of quantum stippling film liquid crystal display and control method |
| CN108594556A (en) * | 2018-04-26 | 2018-09-28 | 京东方科技集团股份有限公司 | Display device |
-
2010
- 2010-08-09 CN CN2010202864462U patent/CN201788333U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615894A (en) * | 2012-03-15 | 2012-08-01 | 天津大学 | Flexible liquid crystal thin film and preparation method thereof |
| CN102615894B (en) * | 2012-03-15 | 2014-11-26 | 天津大学 | Flexible liquid crystal thin film and preparation method thereof |
| CN105140266A (en) * | 2015-09-29 | 2015-12-09 | 北京维信诺光电技术有限公司 | OLED display screen |
| CN107065284A (en) * | 2017-04-27 | 2017-08-18 | 中国科学院长春光学精密机械与物理研究所 | A kind of quantum stippling film liquid crystal display and control method |
| CN108594556A (en) * | 2018-04-26 | 2018-09-28 | 京东方科技集团股份有限公司 | Display device |
| US11315510B2 (en) | 2018-04-26 | 2022-04-26 | Boe Optical Science And Technology Co., Ltd. | Display panel and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |
|
| CX01 | Expiry of patent term |