KR0134485B1 - 액정 디스플레이 장치의 감마 보정 회로 - Google Patents
액정 디스플레이 장치의 감마 보정 회로Info
- Publication number
- KR0134485B1 KR0134485B1 KR1019940009472A KR19940009472A KR0134485B1 KR 0134485 B1 KR0134485 B1 KR 0134485B1 KR 1019940009472 A KR1019940009472 A KR 1019940009472A KR 19940009472 A KR19940009472 A KR 19940009472A KR 0134485 B1 KR0134485 B1 KR 0134485B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- output signal
- liquid crystal
- generating means
- output
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 16
- 238000002834 transmittance Methods 0.000 claims abstract description 10
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 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
-
- 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
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)
- Picture Signal Circuits (AREA)
Abstract
Description
Claims (1)
- 입력 신호를 입력받아 특성이 상기 입력 신호에 대한 액정 투과율과 비슷한 신호를 발생시키는 제1신호 발생 수단과, 상기 제1신호 발생 수단의 출력 신호를 입력받아 기준 신호를 발생시키는 제2신호 발생 수단과, 상기 제1신호 발생 수단의 출력 신호와 상기 제2신호 발생 수단의 출력 신호간의 차를 구하는 감산부와, 상기 제2신호 발생 수단의 출력 신호와 상기 감산부의 출력 신호를 더하는 가산부로 구성된 감마 보정 회로에 있어서 : 상기 제2신호 발생 수단을, 직렬로 접속된 두 개의 연산 증폭기와; 상기 연산 증폭기에 출력 신호를 피드백하고, 상기 기준 신호를 변화시키기 위한 가변 저항으로 구성함을 특징으로 하는 감마 보정 회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940009472A KR0134485B1 (ko) | 1994-04-30 | 1994-04-30 | 액정 디스플레이 장치의 감마 보정 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940009472A KR0134485B1 (ko) | 1994-04-30 | 1994-04-30 | 액정 디스플레이 장치의 감마 보정 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950029801A KR950029801A (ko) | 1995-11-24 |
KR0134485B1 true KR0134485B1 (ko) | 1998-04-23 |
Family
ID=19382226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940009472A KR0134485B1 (ko) | 1994-04-30 | 1994-04-30 | 액정 디스플레이 장치의 감마 보정 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0134485B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100495792B1 (ko) * | 1997-07-08 | 2005-09-30 | 삼성전자주식회사 | 감마 기준전압 보정을 통한 플리커 보상 기능을 갖는 액정표시 장치 |
-
1994
- 1994-04-30 KR KR1019940009472A patent/KR0134485B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR950029801A (ko) | 1995-11-24 |
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