KR940001686A - LCD Display - Google Patents

LCD Display Download PDF

Info

Publication number
KR940001686A
KR940001686A KR1019920010044A KR920010044A KR940001686A KR 940001686 A KR940001686 A KR 940001686A KR 1019920010044 A KR1019920010044 A KR 1019920010044A KR 920010044 A KR920010044 A KR 920010044A KR 940001686 A KR940001686 A KR 940001686A
Authority
KR
South Korea
Prior art keywords
signal
color signal
amplifying
liquid crystal
unit
Prior art date
Application number
KR1019920010044A
Other languages
Korean (ko)
Other versions
KR100197584B1 (en
Inventor
이종원
Original Assignee
강진구
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 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019920010044A priority Critical patent/KR100197584B1/en
Publication of KR940001686A publication Critical patent/KR940001686A/en
Application granted granted Critical
Publication of KR100197584B1 publication Critical patent/KR100197584B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/30—Picture reproducers using solid-state colour display devices

Abstract

색신호처리 수단에서 출력되는 색신호를 액정패널에 인가하는 영상표시 장치에 있어서, 상기 색신호처리 수단에서 출력되는 R, G, B신호 각각에 대하여 포함되는 신호영역에 따라 증폭도를 달리하여 증폭하는 보정수단과, 입력되는 색신호를 신호의 상태에 따란 반전 또는 비반전 증폭하여 액정패널에 인가하는 색신호 반전증폭 수단과, 상기 색신호 반전중폭 수단 및 액정패널을 제어하는 신호를 발생하는 제어신호 발생수단을 포함하는 액정표시 장치에 의하면 흑레벨 부근과 백레벨 부근의 계조재현이 확실하게 되는 효과가 있다.An image display apparatus for applying a color signal output from a color signal processing means to a liquid crystal panel, comprising: correction means for amplifying by varying an amplification degree according to a signal region included for each of the R, G, and B signals output from the color signal processing means; And a color signal inverting amplifying means for inverting or non-inverting amplifying the input color signal according to the state of the signal and applying the color signal to the liquid crystal panel, and a control signal generating means for generating the signal for controlling the color signal inverting amplifying means and the liquid crystal panel. According to the display device, there is an effect of ensuring the gradation reproduction in the vicinity of the black level and the vicinity of the white level.

Description

액정표시장치LCD Display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명의 일 실시예에 따른 액정표시장치.2 is a liquid crystal display device according to an embodiment of the present invention.

제3도는 전압으로 표시되는 색신호.3 is a color signal represented by a voltage.

제4도는 본 발명의 일 실시예에 따른 색신호보정부의 회로도.4 is a circuit diagram of a color signal corrector according to an embodiment of the present invention.

Claims (7)

색신호 처리수단에서 출력되는 색신호를 액정패널에 인가하는 영상표시 장치에 있어서, 상기 색신호 처리수단에서 출력되는 R, G, B신호 각각에 대하여 포함되는 신호영역에 따라 증폭도를 달리하여 증폭하는 보정수단과, 입력되는 색신호를 신호에 따라 반전 또는 비반전 증폭하여 액정패널에 인가하는 색신호반전 증폭수단과, 상기 색신호 반전증폭수단 및 액정패널을 제어하는 신호를 발생하는 제어신호 발생수단을 포함하는 액정표시장치.An image display apparatus for applying a color signal output from a color signal processing means to a liquid crystal panel, comprising: correction means for amplifying by varying an amplification degree according to a signal region included for each of the R, G, and B signals output from the color signal processing means; And a color signal inverting and amplifying means for inverting or non-inverting and amplifying the input color signal according to the signal, and applying the color signal inverting amplifying means and the control signal generating means for generating a signal for controlling the liquid crystal panel. . 제1항에 있어서, 보정수단은 R신호를 보정하기 위한 제1보정 회로를 구비 함을 특징으로 하는 액정표시 장치.The liquid crystal display device according to claim 1, wherein the correction means comprises a first correction circuit for correcting the R signal. 제1항에 있어서, 보정 수단은 G신호를 보정하기 위한 제2보정회로를 구비함을 특징으로 하는 액정표시 장치.The liquid crystal display device according to claim 1, wherein the correction means comprises a second correction circuit for correcting the G signal. 제1항에 있어서, 보정수단은 B신호를 보정하기 위한 제3보정회로를 구비함을 특징으로 하는 액정표시장치.The liquid crystal display device according to claim 1, wherein the correction means comprises a third correction circuit for correcting the B signal. 제1항 내지 제4항중 어느 한 항에 있어서, 보정수단은 입력되는 색신호의 전압값을 두개의 기준전압과 비교하여 이진신호를 발생하는 비교부와, 입력되는 색신호를 제1의 증폭율로 증폭하기 위한 제1증폭부와, 입력되는 색신호를 제2의 증폭을로 증폭하기 위한 제2증폭부와, 상기 비교부의 출력신호 따라 입력되는 색신호를 상기 제1증폭부 및 제2증폭부의 어느 하나로 인가하기 위한 절환부를 구비한 보정회로를 포함하는 것을 특징으로 하는 액정표시 장치.The compensator according to any one of claims 1 to 4, wherein the correction means compares a voltage value of an input color signal with two reference voltages to generate a binary signal, and amplifies the input color signal at a first amplification rate. A first amplification unit, a second amplification unit for amplifying the input color signal with a second amplification, and a color signal input in accordance with an output signal of the comparison unit to one of the first amplifying unit and the second amplifying unit And a correction circuit having a switching unit for switching. 제5항에 있어서, 비교부는 입력되는 색신호의 전압값을 소정의 제1기준전압과 비교하여 이진신호를 발생하는 제1비교부와 입력되는 색 신호의 전압값을 소정의 제2기준전압과 비교하여 이진신호를 발생하는 제2비교부와, 상기 제1비교부 및 제2비교부의 출력신호를 배타적 논리합하는 회로를 구비함을 특징으로 하는 액정표시 장치.The method of claim 5, wherein the comparing unit compares the voltage value of the input color signal with a predetermined first reference voltage to compare the voltage value of the first comparison unit generating a binary signal with the input color signal with a predetermined second reference voltage. And a circuit for exclusively ORing the output signal of the first comparison unit and the second comparison unit to generate a binary signal. 제5항 또는 제6항에 있어서, 두개의 기준전압은 보정신호 영역을 설정하기 위찬 것임을 특징으로 하는 액정표시장치.7. The liquid crystal display device according to claim 5 or 6, wherein the two reference voltages are for setting a correction signal region. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920010044A 1992-06-10 1992-06-10 Lcd display apparatus KR100197584B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920010044A KR100197584B1 (en) 1992-06-10 1992-06-10 Lcd display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920010044A KR100197584B1 (en) 1992-06-10 1992-06-10 Lcd display apparatus

Publications (2)

Publication Number Publication Date
KR940001686A true KR940001686A (en) 1994-01-11
KR100197584B1 KR100197584B1 (en) 1999-06-15

Family

ID=19334465

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920010044A KR100197584B1 (en) 1992-06-10 1992-06-10 Lcd display apparatus

Country Status (1)

Country Link
KR (1) KR100197584B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100317025B1 (en) * 1999-04-19 2001-12-22 구자홍 Projection Television System of Thin Type using Keystone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100317025B1 (en) * 1999-04-19 2001-12-22 구자홍 Projection Television System of Thin Type using Keystone

Also Published As

Publication number Publication date
KR100197584B1 (en) 1999-06-15

Similar Documents

Publication Publication Date Title
KR100188112B1 (en) Tft-lcd device
US5751267A (en) Liquid crystal display device
KR950013228A (en) Liquid crystal display
KR930024445A (en) Nonlinear Image Signal Processor Using Pixel Analysis
KR950024000A (en) Gray voltage generator for liquid crystal display with viewing angle adjustment
KR960035414A (en) Amplifier for Display with Pixel Voltage Compensation
KR910011062A (en) TV receiver
KR930015892A (en) Contour Compensator
KR970004811A (en) Image output device
KR960032283A (en) Driving Method and Driving Device of Liquid Crystal Display
KR970078666A (en) Automatic beam current limiting device and method
KR940001686A (en) LCD Display
KR950004980A (en) Gradation Correction Device of Image Signal
KR100233147B1 (en) Lcd device
KR960020373A (en) Camcorder personality adjusting device and its adjusting method
KR970075972A (en) A driving device of a thin film transistor liquid crystal display device
KR100537886B1 (en) Thin-film transistor liquid crystal display with adjustable gate-on voltage waveform
KR970076461A (en) A cross-talk compensation circuit of a liquid crystal display
KR0147119B1 (en) The liquid crystal driving device for the leak current compensation
KR940025290A (en) Gamma Correction Circuit Using Amplification Degree of Transistor
KR970071061A (en) Temperature compensation circuit of a TFT liquid crystal panel
KR20000027770A (en) Common signal circuit for lcd
JPH10123485A (en) Liquid crystal display device
KR840000874B1 (en) Video signal system
KR100590920B1 (en) method for driving LCD

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20080130

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee