KR950029806A - Viewing angle control device of liquid crystal display device - Google Patents
Viewing angle control device of liquid crystal display device Download PDFInfo
- Publication number
- KR950029806A KR950029806A KR1019940008194A KR19940008194A KR950029806A KR 950029806 A KR950029806 A KR 950029806A KR 1019940008194 A KR1019940008194 A KR 1019940008194A KR 19940008194 A KR19940008194 A KR 19940008194A KR 950029806 A KR950029806 A KR 950029806A
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- South Korea
- Prior art keywords
- viewing angle
- liquid crystal
- data
- control
- gray level
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Abstract
본 발명은 액정디스플레이장치의 시야각제어장치에 관한 것이다.The present invention relates to a viewing angle control device of a liquid crystal display device.
일반적으로 액정디스플레이소자는 액정이라는 물질을 사용하고 있기 때문에 러빙(Rubbing)방향에 따라 주시양각이 어느 한 방향으로 결정되어지기 때문에 액정의 불굴절성에 기인하여 액정디스플레이장치를 보는 방향 즉 주시야각에 따라 그레이 레벨이 바뀌어지게 되나, 종래의 경우는 이를 보정해주는 장치가 없었다.In general, since the liquid crystal display device uses a liquid crystal material, since the relief angle is determined in one direction according to the rubbing direction, the liquid crystal display device is caused by the inflexibility of the liquid crystal and thus, depending on the viewing direction, that is, the viewing angle. The gray level is changed, but in the conventional case, there was no device for correcting this.
따라서 본 발명은 R, G, B입력데이타를 처리하는 데이터 처리부를 구비하는 제어IC와, 상기 제어IC의 제어에 따라 LCD판넬을 구동하는 소오스 구동부에 구동전압을 공급하는 그레이 레벨회로를 구비하는 액정구동장치에 있어서, 상기 LCD판넬을 보는 방향에 따른 시야각 보상을 위한 데이타 및 시야각 비보상 R, G, B데이타 출력을 선택하기 위한 스위칭부와, 상기 스위칭부의 스위칭에 따라 제어IC내의 데이타 처리부의 데이터를 시야 각 보정데이타 또는 시야각 비보정 데이타로 출력하는 멀티플렉서를 구성하거나 LCD판넬을 보는 방향에 따른 시야각 보상 그레이 레벨전원 또는 시야각 비보상 그레이 레벨전원 출력을 선택하는 스위칭부와, 상기 스위칭부의 스위칭에 따라 그레이 레벨회로의 출력전압을 시야각 보정 그레이 레벨전압 또는 시야각 비보상 그레이 레벨전압으로 출력하는 멀티플렉서를 구성하여 액정디스플레이장치의 용도 및 작업위치에 따른 시야각의 변동을 보상하여 액정자체의 시야각의 한계를 극복할 수 있도록 한 것이다.Therefore, the present invention provides a control IC including a data processing unit for processing R, G, and B input data, and a liquid crystal having a gray level circuit for supplying a driving voltage to a source driver for driving an LCD panel according to the control of the control IC. A driving apparatus, comprising: a switching unit for selecting data for viewing angle compensation and viewing angle non-compensation R, G, and B data output according to a direction of viewing the LCD panel, and data for a data processing unit in a control IC according to switching of the switching unit. A switching unit for constructing a multiplexer for outputting the field of view to the viewing angle correction data or the viewing angle non-correction data, or selecting the viewing angle compensation gray level power supply or viewing angle non-compensation gray level power output according to the viewing direction of the LCD panel; View angle correction of the output voltage of the gray level circuit. To configure the multiplexer to output a voltage level compensating for the variation of the viewing angle according to the use and the working position of the liquid crystal display device is one to overcome the limitation of the viewing angle of the liquid crystal itself.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 일반적인 액정구동장치의 구성 블럭도, 제2도 (가),(나)는 종래의 그레이 레벨전원 공급설명도, 제3도는 본 발명의 제1실시예를 나타낸 블록 구성도, 제4도는 본 발명의 제2실시예를 나타낸 블록 구성도.1 is a block diagram of a general liquid crystal driving apparatus, FIG. 2 (a) and (b) is an explanatory diagram of a conventional gray level power supply, and FIG. 3 is a block diagram showing a first embodiment of the present invention. Fig. 1 is a block diagram showing a second embodiment of the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940008194A KR950029806A (en) | 1994-04-19 | 1994-04-19 | Viewing angle control device of liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940008194A KR950029806A (en) | 1994-04-19 | 1994-04-19 | Viewing angle control device of liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR950029806A true KR950029806A (en) | 1995-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940008194A KR950029806A (en) | 1994-04-19 | 1994-04-19 | Viewing angle control device of liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950029806A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990085823A (en) * | 1998-05-22 | 1999-12-15 | 윤종용 | Gamma Correction Device According to Viewing Angle |
| KR100419090B1 (en) * | 2001-02-19 | 2004-02-19 | 삼성전자주식회사 | Liquid crystal display device adapt to a view angle |
| KR100508038B1 (en) * | 1998-03-12 | 2005-11-03 | 삼성전자주식회사 | Driving circuit for liquid crystal display device to adjust gradation voltage |
| KR100841616B1 (en) * | 2001-12-31 | 2008-06-27 | 엘지디스플레이 주식회사 | Driving apparatus and its driving method of liquid crystal panel |
-
1994
- 1994-04-19 KR KR1019940008194A patent/KR950029806A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100508038B1 (en) * | 1998-03-12 | 2005-11-03 | 삼성전자주식회사 | Driving circuit for liquid crystal display device to adjust gradation voltage |
| KR19990085823A (en) * | 1998-05-22 | 1999-12-15 | 윤종용 | Gamma Correction Device According to Viewing Angle |
| KR100419090B1 (en) * | 2001-02-19 | 2004-02-19 | 삼성전자주식회사 | Liquid crystal display device adapt to a view angle |
| KR100841616B1 (en) * | 2001-12-31 | 2008-06-27 | 엘지디스플레이 주식회사 | Driving apparatus and its driving method of liquid crystal panel |
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| WITN | Withdrawal due to no request for examination |