JPH0431372B2 - - Google Patents
Info
- Publication number
- JPH0431372B2 JPH0431372B2 JP8365185A JP8365185A JPH0431372B2 JP H0431372 B2 JPH0431372 B2 JP H0431372B2 JP 8365185 A JP8365185 A JP 8365185A JP 8365185 A JP8365185 A JP 8365185A JP H0431372 B2 JPH0431372 B2 JP H0431372B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- polarity
- voltage
- time
- state
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 49
- 239000000758 substrate Substances 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 12
- 239000010408 film Substances 0.000 description 15
- 239000004990 Smectic liquid crystal Substances 0.000 description 10
- 230000005684 electric field Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 239000004642 Polyimide Substances 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- -1 fluororesin Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3622—Control of matrices with row and column drivers using a passive matrix
- G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
- G09G2310/061—Details of flat display driving waveforms for resetting or blanking
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8365185A JPS61241731A (ja) | 1985-04-19 | 1985-04-19 | スメクテイック液晶装置 |
| DE8686302887T DE3682610D1 (de) | 1985-04-19 | 1986-04-17 | Elektrooptische vorrichtung mit chiral smektischem fluessigkristall und verfahren zu deren ansteuerung. |
| EP19860302887 EP0200427B1 (de) | 1985-04-19 | 1986-04-17 | Elektrooptische Vorrichtung mit chiral smektischem Flüssigkristall und Verfahren zu deren Ansteuerung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8365185A JPS61241731A (ja) | 1985-04-19 | 1985-04-19 | スメクテイック液晶装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61241731A JPS61241731A (ja) | 1986-10-28 |
| JPH0431372B2 true JPH0431372B2 (de) | 1992-05-26 |
Family
ID=13808352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8365185A Granted JPS61241731A (ja) | 1985-04-19 | 1985-04-19 | スメクテイック液晶装置 |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0200427B1 (de) |
| JP (1) | JPS61241731A (de) |
| DE (1) | DE3682610D1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836656A (en) * | 1985-12-25 | 1989-06-06 | Canon Kabushiki Kaisha | Driving method for optical modulation device |
| US5255110A (en) * | 1985-12-25 | 1993-10-19 | Canon Kabushiki Kaisha | Driving method for optical modulation device using ferroelectric liquid crystal |
| JPH061310B2 (ja) * | 1987-05-13 | 1994-01-05 | キヤノン株式会社 | 液晶装置 |
| US5010328A (en) * | 1987-07-21 | 1991-04-23 | Thorn Emi Plc | Display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629919B2 (ja) * | 1982-04-16 | 1994-04-20 | 株式会社日立製作所 | 液晶素子の駆動方法 |
| EP0106386A3 (de) * | 1982-09-23 | 1985-03-13 | BBC Brown Boveri AG | Verfahren zur Ansteuerung einer multiplexierbaren, bistabilen Flüssigkristallanzeige |
| US4655561A (en) * | 1983-04-19 | 1987-04-07 | Canon Kabushiki Kaisha | Method of driving optical modulation device using ferroelectric liquid crystal |
| AU584867B2 (en) * | 1983-12-09 | 1989-06-08 | Seiko Instruments & Electronics Ltd. | A liquid crystal display device |
-
1985
- 1985-04-19 JP JP8365185A patent/JPS61241731A/ja active Granted
-
1986
- 1986-04-17 EP EP19860302887 patent/EP0200427B1/de not_active Expired - Lifetime
- 1986-04-17 DE DE8686302887T patent/DE3682610D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0200427B1 (de) | 1991-11-27 |
| JPS61241731A (ja) | 1986-10-28 |
| DE3682610D1 (de) | 1992-01-09 |
| EP0200427A1 (de) | 1986-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |