JPH0279018A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPH0279018A JPH0279018A JP22980788A JP22980788A JPH0279018A JP H0279018 A JPH0279018 A JP H0279018A JP 22980788 A JP22980788 A JP 22980788A JP 22980788 A JP22980788 A JP 22980788A JP H0279018 A JPH0279018 A JP H0279018A
- Authority
- JP
- Japan
- Prior art keywords
- cell
- liquid crystal
- double refractive
- refractive index
- crystal display
- 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.)
- Pending
Links
- 239000004973 liquid crystal related substances Substances 0.000 title abstract 6
- 239000010410 layers Substances 0.000 abstract 3
- 238000002788 crimping Methods 0.000 abstract 2
- 239000000758 substrates Substances 0.000 abstract 2
- 239000000463 materials Substances 0.000 abstract 1
Abstract
PURPOSE: To widen the allowance range of the one cell thickness at the time of approximately equaling the retardations of a driving cell and a correcting cell by varying the double refractive index of the liquid crystal materials used for both the cells.
CONSTITUTION: The 1st cell [cell thickness d1(μm)] 1 constituted by crimping a 1st liquid crystal layer (double refractive index Δn1) 8 having a twist angle ranging from 180 to 360° between substrates 2 and 3 and the 2nd cell [cell thickness d2(μm)] 10 constituted by crimping a 2nd liquid crystal layer (double refractive index Δn2) 11 twisted in the reverse direction at the same twist angle between the substrates 2 and 3 are held in place between two sheets of polarizing plates, by which the above liquid crystal display element is formed. The 1st and 2nd liquid crystal layers 8, 11 which are different in the double refractive indices Δn1, Δn2 from each other are used and the cell thicknesses d1, d2 of the 1st and 2nd cells 1, 10 are varied from each other, by which the difference between the values of the retardation Δn1.Δd1 and the value of the retardation Δn2.d2 is kept within 0.06. The allowance width of the cell thickness at the other cell is increased in this way.
COPYRIGHT: (C)1990,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22980788A JPH0279018A (en) | 1988-09-16 | 1988-09-16 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22980788A JPH0279018A (en) | 1988-09-16 | 1988-09-16 | Liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0279018A true JPH0279018A (en) | 1990-03-19 |
Family
ID=16897978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22980788A Pending JPH0279018A (en) | 1988-09-16 | 1988-09-16 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0279018A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4028107A1 (en) * | 1990-09-05 | 1992-03-12 | Vdo Schindling | Rapid response LV LCD - uses difference of refraction between two cells, one of which is active and other passive |
| US5329387A (en) * | 1990-11-27 | 1994-07-12 | Casio Computer Co., Ltd. | Liquid crystal display device with display and compensation cells separated by distance larger than depth of focus of optical enlarger |
| US5684551A (en) * | 1992-06-26 | 1997-11-04 | Sharp Kabushiki Kaisha | Reflective type liquid crystal display device with phase compensator and reflector with undulating surface |
-
1988
- 1988-09-16 JP JP22980788A patent/JPH0279018A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4028107A1 (en) * | 1990-09-05 | 1992-03-12 | Vdo Schindling | Rapid response LV LCD - uses difference of refraction between two cells, one of which is active and other passive |
| DE4028107B4 (en) * | 1990-09-05 | 2006-01-26 | Siemens Ag | liquid crystal device |
| US5329387A (en) * | 1990-11-27 | 1994-07-12 | Casio Computer Co., Ltd. | Liquid crystal display device with display and compensation cells separated by distance larger than depth of focus of optical enlarger |
| US5684551A (en) * | 1992-06-26 | 1997-11-04 | Sharp Kabushiki Kaisha | Reflective type liquid crystal display device with phase compensator and reflector with undulating surface |
| US5847789A (en) * | 1992-06-26 | 1998-12-08 | Sharp Kabushiki Kaisha | Reflective type liquid crystal display device |
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