EP0344753A3 - Dispositif à cristaux liquides et méthode de commande pour ce dispositif - Google Patents
Dispositif à cristaux liquides et méthode de commande pour ce dispositif Download PDFInfo
- Publication number
- EP0344753A3 EP0344753A3 EP19890109852 EP89109852A EP0344753A3 EP 0344753 A3 EP0344753 A3 EP 0344753A3 EP 19890109852 EP19890109852 EP 19890109852 EP 89109852 A EP89109852 A EP 89109852A EP 0344753 A3 EP0344753 A3 EP 0344753A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid crystal
- pixel
- crystal apparatus
- pulse
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title abstract 3
- 230000003287 optical effect Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
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 Display Device Control (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13590788A JPH0833537B2 (ja) | 1988-06-01 | 1988-06-01 | 液晶装置及びその駆動法 |
| JP135907/88 | 1988-06-01 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0344753A2 EP0344753A2 (fr) | 1989-12-06 |
| EP0344753A3 true EP0344753A3 (fr) | 1991-08-14 |
| EP0344753B1 EP0344753B1 (fr) | 1995-08-02 |
Family
ID=15162618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19890109852 Expired - Lifetime EP0344753B1 (fr) | 1988-06-01 | 1989-05-31 | Dispositif à cristaux liquides et méthode de commande pour ce dispositif |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0344753B1 (fr) |
| JP (1) | JPH0833537B2 (fr) |
| DE (1) | DE68923654T2 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2312542B (en) * | 1995-12-21 | 2000-02-23 | Secr Defence | Multiplex addressing of ferroelectric liquid crystal displays |
| GB9526270D0 (en) * | 1995-12-21 | 1996-02-21 | Secr Defence | Multiplex addressing of ferroelectric liquid crystal displays |
| US6423385B1 (en) * | 1999-02-25 | 2002-07-23 | Hitachi, Ltd. | Liquid crystal display devices |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0244804A2 (fr) * | 1986-05-09 | 1987-11-11 | Hitachi, Ltd. | Méthode de commande multiplexée pour un élément optique de commutation comportant un cristal liquide ferroélectrique |
-
1988
- 1988-06-01 JP JP13590788A patent/JPH0833537B2/ja not_active Expired - Fee Related
-
1989
- 1989-05-31 DE DE1989623654 patent/DE68923654T2/de not_active Expired - Fee Related
- 1989-05-31 EP EP19890109852 patent/EP0344753B1/fr not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0244804A2 (fr) * | 1986-05-09 | 1987-11-11 | Hitachi, Ltd. | Méthode de commande multiplexée pour un élément optique de commutation comportant un cristal liquide ferroélectrique |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0833537B2 (ja) | 1996-03-29 |
| DE68923654T2 (de) | 1996-01-18 |
| DE68923654D1 (de) | 1995-09-07 |
| JPH01304430A (ja) | 1989-12-08 |
| EP0344753A2 (fr) | 1989-12-06 |
| EP0344753B1 (fr) | 1995-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0366117A3 (fr) | Dispositif à cristal liquide | |
| HK60788A (en) | Liquid crystal video display devices operable in an expansion display mode | |
| ATE148954T1 (de) | Flüssigkristall-anzeigevorrichtung und verfahren zu ihrer ansteuerung | |
| HK71191A (en) | Optical modulation device and driving method therefor | |
| EP0197743A3 (fr) | Adressage de cellules à cristaux liquides | |
| EP0767449A3 (fr) | Méthode et circuit d'attaque d'un panneau d'affichage à cristaux liquides à matrice active avec contrÔle de la tension moyenne de commande | |
| HK83387A (en) | Drive system for matrix display device | |
| WO2003075086A3 (fr) | Dispositif d'affichage a electrophorese | |
| CA2057965A1 (fr) | Methode pour actionner un dispositif d'affiche a cristaux liquides du type matriciel | |
| DE69211896D1 (de) | Flüssigkristallanzeigevorrichtung | |
| KR930008701A (ko) | 액티브매트릭스형 액정표시장치의 구동 장치 및 방법 | |
| EP0306203A3 (fr) | Méthode d'adressage d'un dispositif d'affichage à cristaux liquides ferroélectriques | |
| HK60888A (en) | A liquid crystal display device | |
| DE68922159D1 (de) | Anzeigevorrichtung. | |
| EP0469531A3 (en) | Liquid crystal apparatus and driving method therefor | |
| TW332261B (en) | Liquid crystal display device | |
| CA2038687A1 (fr) | Methode et dispositif d'excitation pour afficheur matriciel actif a cristaux liquides | |
| EP0171177A3 (fr) | Adressage de panneaux d'affichage à cristaux liquides smectiques | |
| ES2074493T3 (es) | Aparato de cristal liquido. | |
| EP0326115A3 (fr) | Procédé pour l'enregistrement de l'image, matériau et appareil | |
| ATE135129T1 (de) | Verfahren zur adressierung jeder spalte eines rastergebildeten flüssigkristallbildschirms | |
| EP0344753A3 (fr) | Dispositif à cristaux liquides et méthode de commande pour ce dispositif | |
| HK114093A (en) | Method of driving a liquid crystal optical apparatus | |
| TW325530B (en) | Liquid crystal display device and method for driving display device | |
| TW334552B (en) | Method for driving of nematic liquid crystal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19890531 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT NL |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT NL |
|
| 17Q | First examination report despatched |
Effective date: 19930414 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT NL |
|
| REF | Corresponds to: |
Ref document number: 68923654 Country of ref document: DE Date of ref document: 19950907 |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20030508 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20030528 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20030530 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20030612 Year of fee payment: 15 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041201 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041201 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050131 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20041201 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050531 |