JPS647017A - Display method for liquid crystal element - Google Patents
Display method for liquid crystal elementInfo
- Publication number
- JPS647017A JPS647017A JP16346787A JP16346787A JPS647017A JP S647017 A JPS647017 A JP S647017A JP 16346787 A JP16346787 A JP 16346787A JP 16346787 A JP16346787 A JP 16346787A JP S647017 A JPS647017 A JP S647017A
- Authority
- JP
- Japan
- Prior art keywords
- cell
- heated
- liquid crystal
- voltage
- electrodes
- 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 substance Substances 0.000 title abstract 2
- 210000004027 cell Anatomy 0.000 abstract 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- 239000007791 liquid phase Substances 0.000 abstract 2
- 230000010287 polarization Effects 0.000 abstract 2
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 210000002858 crystal cell Anatomy 0.000 abstract 1
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 abstract 1
Landscapes
- Liquid Crystal (AREA)
Abstract
PURPOSE:To enable thermal writing with good contrast by projecting laser light to part of a display surface of a liquid crystal cell to heat said part to an isotropic liquid phase or nematic phase and cooling the cell while impressing a DC voltage of a specific polarity to the electrodes on the heated surface. CONSTITUTION:A ferroelectric liquid crystal 5 is injected into the cell and while the DC voltage is impressed between the upper and lower transparent electrodes 2, the cell is cooled slowly to obtain the orientation uniform over the entire part. While the display part of this cell is heated up to the isotropic liquid phase by projecting the argon laser partially to said surface, +3V DC voltage is impressed to the electrodes on the segment side and the cell is cooled down to room temp. The optical axis is then inclined by -15 deg. in the rubbing direction only in the partially heated part. This cell is placed between two sheets of polarizing plates 6 disposed in such a manner that the axes of polarization thereof intersect orthogonally with each other to incline the axis of polarization of the one polarizing plate by -15 deg. with respect to the rubbing direction. Light is thereby not transmitted in the heated part and a black color is shown in said part, while the light is transmitted in the other part. The bright display of the good contrast is thus obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16346787A JPS647017A (en) | 1987-06-30 | 1987-06-30 | Display method for liquid crystal element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16346787A JPS647017A (en) | 1987-06-30 | 1987-06-30 | Display method for liquid crystal element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647017A true JPS647017A (en) | 1989-01-11 |
Family
ID=15774426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16346787A Pending JPS647017A (en) | 1987-06-30 | 1987-06-30 | Display method for liquid crystal element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647017A (en) |
-
1987
- 1987-06-30 JP JP16346787A patent/JPS647017A/en active Pending
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