KR970028668A - Viewing angle improvement device of liquid crystal display - Google Patents

Viewing angle improvement device of liquid crystal display Download PDF

Info

Publication number
KR970028668A
KR970028668A KR1019950044892A KR19950044892A KR970028668A KR 970028668 A KR970028668 A KR 970028668A KR 1019950044892 A KR1019950044892 A KR 1019950044892A KR 19950044892 A KR19950044892 A KR 19950044892A KR 970028668 A KR970028668 A KR 970028668A
Authority
KR
South Korea
Prior art keywords
signal
liquid crystal
correction signal
crystal display
viewing angle
Prior art date
Application number
KR1019950044892A
Other languages
Korean (ko)
Other versions
KR0160735B1 (en
Inventor
고한일
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950044892A priority Critical patent/KR0160735B1/en
Publication of KR970028668A publication Critical patent/KR970028668A/en
Application granted granted Critical
Publication of KR0160735B1 publication Critical patent/KR0160735B1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

본 발명은 액정 디스플레이 시야각 개선 장치에 관한 것으로서, 특히 직시형 액정 디스플레이에서 액정 패널의 시야각에 의한 화면 밝기 차이를 전기적인 신호로 보상하도록 한 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for improving the viewing angle of a liquid crystal display, and more particularly, to an apparatus for compensating a difference in screen brightness due to a viewing angle of a liquid crystal panel in an direct view type liquid crystal display with an electrical signal.

본 발명의 목적을 위하여 인가되는 영상 신호로 부터 동기 신호를 분리하기 위한 동기 분리부, 동기 분리부에서 출력되는 신호를 입력으로 하여 보정 신호를 발생 시키기 위한 보정 신호 발생부, 보정 신호 발생부에서 출력된 보정 신호와 밝기 조정 단자로 조정되는 밝기 조정값을 혼합하는 혼합부, 혼합부에서 조정된 보정 신호에 따라서 입력되는 영상 신호를 신호 처리하기 위한 영상 신호 처리부, 영상 신호 처리부에서 출력되는 신호를 인가하기 위한 액정 판넬부를 포함하는 것을 특징으로 한다.Synchronization separator for separating the synchronization signal from the image signal applied for the purpose of the present invention, a correction signal generator for generating a correction signal by inputting the signal output from the synchronization separator, output from the correction signal generator A mixing unit for mixing the corrected correction signal and the brightness adjustment value adjusted by the brightness adjusting terminal, an image signal processing unit for processing a video signal input according to the correction signal adjusted by the mixing unit, and a signal output from the image signal processing unit Characterized in that it comprises a liquid crystal panel portion for.

상술한 바와 같이 본 발명에 의하면, 시청 위치에 따른 화면 상, 하부 밝기 차를 보정 함으로서 액정 판넬의 상부와 하부가 균일한 밝기로 표시할 수 있다.As described above, according to the present invention, the upper and lower portions of the liquid crystal panel can be displayed with uniform brightness by correcting the difference in brightness on the screen according to the viewing position.

Description

액정 디스플레이의 시야각 개선 장치Viewing angle improvement device of liquid crystal display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제4도는 본 발명에 의한 액정 구동 신호 발생 회로의 일실시 예를 나타낸 블럭도이다.4 is a block diagram showing an embodiment of a liquid crystal drive signal generation circuit according to the present invention.

제5도는 제4도의 입출력 파형도를 도시한 것이다.FIG. 5 shows the input / output waveform diagram of FIG.

Claims (5)

액정 디스플레이 장치의 액정 구동 신호 발생 회로에 있어서, 인가되는 영상 신호로 부터 동기 신호를 분리하기 위한 동기 분리부; 상기 동기 분리부에서 출력되는 신호를 입력으로 하여 보정 신호를 발생시키기 위한 보정 신호 발생부; 상기 보정 신호 발생부에서 출력된 보정 신호와 밝기 조정 단자로 조정되는 밝기 조정값을 혼합하는 혼합부; 상기 혼합부에서 조정된 보정 신호에 따라서 입력되는 영상 신호를 신호 처리하기 위한 영상 신호 처리부; 영상 신호 처리부에서 출력되는 신호를 인가하기 위한 액정 판넬부를 포함하는 것을 특징으로 하는 액정 디스플레이의 시야각 개선장치.A liquid crystal drive signal generation circuit of a liquid crystal display device, comprising: a sync separator for separating a sync signal from an applied image signal; A correction signal generator for generating a correction signal by using the signal output from the synchronization separator; A mixing unit mixing a correction signal output from the correction signal generator and a brightness adjustment value adjusted by a brightness adjustment terminal; An image signal processor for signal-processing an input image signal according to the correction signal adjusted by the mixing unit; And a liquid crystal panel unit configured to apply a signal output from the image signal processor. 제1항에 있어서, 상기 보정 신호 발생부는 수직 동기 신호를 사용한 것을 특징으로 하는 액정 디스플레이의 시야각 개선 장치.The apparatus of claim 1, wherein the correction signal generator uses a vertical synchronization signal. 제1항에 있어서, 상기 보정 신호 발생부는 보정 신호 조정용으로 하나 이상의 조정 단자를 가지는 것을 특징으로 하는 액정 디스플레이의 시야각 개선 장치.The apparatus of claim 1, wherein the correction signal generator has at least one adjustment terminal for adjusting the correction signal. 제1항에 있어서, 상기 보정 신호는 마이컴의 제어에 의해 발생시키는 것을 특징으로 하는 액정 디스플레이의 시야각 개선 장치.The apparatus for improving the viewing angle of a liquid crystal display according to claim 1, wherein the correction signal is generated by control of a microcomputer. 제1항에 있어서, 상기 조정 단자의 조정 수단은 가변 저항기인 것을 특징으로 하는 액정 디스플레이의 시야각 개선 장치.The apparatus for improving the viewing angle of a liquid crystal display according to claim 1, wherein the adjusting means of the adjusting terminal is a variable resistor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950044892A 1995-11-29 1995-11-29 Viewing angle improving device of liquid crystal display KR0160735B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950044892A KR0160735B1 (en) 1995-11-29 1995-11-29 Viewing angle improving device of liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950044892A KR0160735B1 (en) 1995-11-29 1995-11-29 Viewing angle improving device of liquid crystal display

Publications (2)

Publication Number Publication Date
KR970028668A true KR970028668A (en) 1997-06-24
KR0160735B1 KR0160735B1 (en) 1999-01-15

Family

ID=19436530

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950044892A KR0160735B1 (en) 1995-11-29 1995-11-29 Viewing angle improving device of liquid crystal display

Country Status (1)

Country Link
KR (1) KR0160735B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100687327B1 (en) * 1999-11-09 2007-02-27 비오이 하이디스 테크놀로지 주식회사 Circuit of color revision in liquid crystal display

Also Published As

Publication number Publication date
KR0160735B1 (en) 1999-01-15

Similar Documents

Publication Publication Date Title
CA1315026C (en) Liquid crystal display apparatus
KR910017219A (en) Multi Gradient Liquid Crystal Display
KR970029284A (en) Image Display Apparatus Having On-Screen Display and Their Position Control Method
KR970022943A (en) Display
KR910011062A (en) TV receiver
KR960033069A (en) Correction voltage generator for multi-screen display and video display device using the same
KR970028668A (en) Viewing angle improvement device of liquid crystal display
KR900015539A (en) TV receiver
US5243454A (en) Liquid crystal display device having correcting means
KR950004980A (en) Gradation Correction Device of Image Signal
JP3183995B2 (en) Liquid crystal display device and driving method thereof
KR950010554A (en) Half Blanking Processing Circuit for On Screen Display
KR0130293Y1 (en) Automatic focus signal controlling circuit
KR970009288A (en) Sub-screen shape inverter
KR0145460B1 (en) Trapezoid compensating circuit of a monitor
KR100404216B1 (en) Apparatus and Method for Compensating Picture of The Video Display
KR920010814B1 (en) Normal state switching circuit of lcd device
KR970004260Y1 (en) Osd moving apparatus in tv
KR100206322B1 (en) Luminance control method and circuit for lcd projection tv
KR960028240A (en) TV's mode control unit with PC mode
JP3265048B2 (en) Liquid crystal display
KR200148510Y1 (en) Apparatus for displaying with oneself clamp pulse generation circuit
KR970014227A (en) TV sub-screen brightness and deflection compensation device
KR970057148A (en) Menu screen display device and menu screen display method when adjusting functions on a TV receiver capable of simultaneously outputting two screens
KR960006532A (en) OSD (ON SCREEN DISPLAY) Signal Generator

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20070727

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee