FR2622724B1 - Dispositif de generation de niveaux de brillance sur un ecran de visualisation - Google Patents
Dispositif de generation de niveaux de brillance sur un ecran de visualisationInfo
- Publication number
- FR2622724B1 FR2622724B1 FR8715058A FR8715058A FR2622724B1 FR 2622724 B1 FR2622724 B1 FR 2622724B1 FR 8715058 A FR8715058 A FR 8715058A FR 8715058 A FR8715058 A FR 8715058A FR 2622724 B1 FR2622724 B1 FR 2622724B1
- Authority
- FR
- France
- Prior art keywords
- brightness levels
- visualization screen
- generating brightness
- generating
- visualization
- 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 - Fee Related
Links
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
- G09G3/2007—Display of intermediate tones
- G09G3/2011—Display of intermediate tones by amplitude modulation
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/06—Passive matrix structure, i.e. with direct application of both column and row voltages to the light emitting or modulating elements, other than LCD or OLED
-
- 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
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
-
- 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
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
-
- 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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- 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
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
-
- 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
- G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8715058A FR2622724B1 (fr) | 1987-10-30 | 1987-10-30 | Dispositif de generation de niveaux de brillance sur un ecran de visualisation |
US07/261,174 US5030947A (en) | 1987-10-30 | 1988-10-21 | Device to generate brilliance levels on a display screen |
FI884937A FI87292C (fi) | 1987-10-30 | 1988-10-26 | Anordning foer alstrande av ljusstyrkenivaoer hos en displayruta |
DE3836789A DE3836789A1 (de) | 1987-10-30 | 1988-10-28 | Vorrichtung zur erzeugung von helligkeitsstufen auf einem anzeigeschirm |
JP63273363A JPH01147595A (ja) | 1987-10-30 | 1988-10-31 | ディスプレイ表示面上の輝度レベル生成装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8715058A FR2622724B1 (fr) | 1987-10-30 | 1987-10-30 | Dispositif de generation de niveaux de brillance sur un ecran de visualisation |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2622724A1 FR2622724A1 (fr) | 1989-05-05 |
FR2622724B1 true FR2622724B1 (fr) | 1993-02-12 |
Family
ID=9356337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8715058A Expired - Fee Related FR2622724B1 (fr) | 1987-10-30 | 1987-10-30 | Dispositif de generation de niveaux de brillance sur un ecran de visualisation |
Country Status (5)
Country | Link |
---|---|
US (1) | US5030947A (fr) |
JP (1) | JPH01147595A (fr) |
DE (1) | DE3836789A1 (fr) |
FI (1) | FI87292C (fr) |
FR (1) | FR2622724B1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2633764B1 (fr) * | 1988-06-29 | 1991-02-15 | Commissariat Energie Atomique | Procede et dispositif de commande d'un ecran matriciel affichant des niveaux de gris |
JP2720607B2 (ja) * | 1990-03-02 | 1998-03-04 | 株式会社日立製作所 | 表示装置、階調表示方法及び駆動回路 |
JP2774680B2 (ja) * | 1990-08-21 | 1998-07-09 | キヤノン株式会社 | ズームレンズ |
US5245326A (en) * | 1991-08-19 | 1993-09-14 | International Business Machines Corp. | Calibration apparatus for brightness controls of digitally operated liquid crystal display system |
US5206633A (en) * | 1991-08-19 | 1993-04-27 | International Business Machines Corp. | Self calibrating brightness controls for digitally operated liquid crystal display system |
US5495287A (en) | 1992-02-26 | 1996-02-27 | Hitachi, Ltd. | Multiple-tone display system |
FR2691568B1 (fr) * | 1992-05-21 | 1996-12-13 | Commissariat Energie Atomique | Procede d'affichage de differents niveaux de gris et systeme de mise en óoeuvre de ce procede. |
DE4432065A1 (de) * | 1994-09-09 | 1996-03-14 | Lueder Ernst | Verfahren und Schaltungsanordnung zur Wandlung eines digitalen Datenwortes mit N Bit in einen analogen Spannungswert |
JP3418676B2 (ja) * | 1998-04-13 | 2003-06-23 | シャープ株式会社 | 液晶駆動回路 |
JP4828338B2 (ja) * | 2005-09-14 | 2011-11-30 | 株式会社リコー | 画像処理装置およびプログラム |
KR20120094054A (ko) * | 2009-11-27 | 2012-08-23 | 캐논 가부시끼가이샤 | 화상 표시 장치 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4020280A (en) * | 1973-02-21 | 1977-04-26 | Ryuichi Kaneko | Pulse width luminance modulation system for a DC gas discharge display panel |
GB2006569A (en) * | 1977-10-07 | 1979-05-02 | Hitachi Ltd | A flat panel image display system |
NL7903515A (nl) * | 1979-05-04 | 1980-11-06 | Philips Nv | Modulatorschakeling voor een matrixweergeefinrichting. |
DE3026392C2 (de) * | 1980-02-26 | 1985-08-22 | Sharp K.K., Osaka | Anzeigevorrichtung mit einem elektrolumineszenten Dünnschichtelement zur Bilddarstellung |
GB2109976B (en) * | 1981-10-19 | 1986-06-18 | Texas Instruments Ltd | Display apparatus |
US4661809A (en) * | 1982-05-05 | 1987-04-28 | Litton Systems, Inc. | Magneto-optic chip with gray-scale capability |
EP0106550B1 (fr) * | 1982-09-21 | 1989-04-12 | Fujitsu Limited | Méthode de commande d'un panneau d'affichage matriciel |
EP0106386A3 (fr) * | 1982-09-23 | 1985-03-13 | BBC Brown Boveri AG | Méthode de commande en multiplex d'un dispositif d'affichage à cristaux liquides bistables |
US4554539A (en) * | 1982-11-08 | 1985-11-19 | Rockwell International Corporation | Driver circuit for an electroluminescent matrix-addressed display |
JPS59181880A (ja) * | 1983-03-31 | 1984-10-16 | Toshiba Electric Equip Corp | 映像表示装置 |
US4531160A (en) * | 1983-05-03 | 1985-07-23 | Itek Corporation | Display processor system and method |
US4631576A (en) * | 1984-11-13 | 1986-12-23 | Hazeltine Corporation | Nonuniformity correction system for color CRT display |
US4698685A (en) * | 1986-05-28 | 1987-10-06 | Rca Corporation | Apparatus and method for correcting CCD pixel nonuniformities |
-
1987
- 1987-10-30 FR FR8715058A patent/FR2622724B1/fr not_active Expired - Fee Related
-
1988
- 1988-10-21 US US07/261,174 patent/US5030947A/en not_active Expired - Fee Related
- 1988-10-26 FI FI884937A patent/FI87292C/fi not_active IP Right Cessation
- 1988-10-28 DE DE3836789A patent/DE3836789A1/de not_active Withdrawn
- 1988-10-31 JP JP63273363A patent/JPH01147595A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FI87292C (fi) | 1992-12-10 |
US5030947A (en) | 1991-07-09 |
DE3836789A1 (de) | 1989-05-11 |
FI884937A (fi) | 1989-05-01 |
FI87292B (fi) | 1992-08-31 |
FI884937A0 (fi) | 1988-10-26 |
JPH01147595A (ja) | 1989-06-09 |
FR2622724A1 (fr) | 1989-05-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
ST | Notification of lapse |