KR960001826A - Backlight brightness automatic adjustment device - Google Patents

Backlight brightness automatic adjustment device Download PDF

Info

Publication number
KR960001826A
KR960001826A KR1019940015340A KR19940015340A KR960001826A KR 960001826 A KR960001826 A KR 960001826A KR 1019940015340 A KR1019940015340 A KR 1019940015340A KR 19940015340 A KR19940015340 A KR 19940015340A KR 960001826 A KR960001826 A KR 960001826A
Authority
KR
South Korea
Prior art keywords
brightness
backlight
voltage
backlight brightness
adjustment device
Prior art date
Application number
KR1019940015340A
Other languages
Korean (ko)
Inventor
박원정
Original Assignee
배순훈
대우전자 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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940015340A priority Critical patent/KR960001826A/en
Publication of KR960001826A publication Critical patent/KR960001826A/en

Links

Abstract

본 발명은 백라이트 밝기가 주위 환경의 밝기 정도에 따라 자동으로 조절되도록 하기에 적합한 백라이트 밝기 자동 조절 장치에 관한 것으로, 종래에는 백라이트가 일정 광도를 유지할 경우 주변 밝기에 따라 상대적으로 액정 디스플레이의 화상 선명도가 다르게 되기 때문에 결국, 주변 밝기가 다르게 될 때마다 휘도 조절부를 제어하여 백라이트의 밝기를 직접 조절해야하는 불편함이 있었으나, 본 발명에서는 광센서부(120)의 주변 밝기 센싱에 따라 백라이트(150)의 밝기가 자동으로 조절되므로서 사용자는 어떠한 환경에서도 항상 액정 디스플레이를 최적의 휘도 상태로 사용할 수 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically adjusting backlight brightness, which is suitable for automatically adjusting backlight brightness according to the degree of brightness of the surrounding environment. In the end, the brightness of the backlight 150 is changed according to the ambient light sensing of the optical sensor unit 120. Is automatically adjusted so that the user can always use the liquid crystal display at the optimum brightness in any environment.

Description

백라이트 밝기 자동 조절 장치Backlight brightness automatic adjustment device

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

제1도는 백라이트에 인가되는 전류에 따른 액정 디스플레이의 휘도를 나타낸 그래프,1 is a graph showing the luminance of the liquid crystal display according to the current applied to the backlight;

제2도는 종래 기술에 따른 백라이트 밝기 조절의 일 실시예를 나타낸 블럭도,2 is a block diagram showing an embodiment of backlight brightness control according to the prior art;

제3도는 본 발명에 의해 주위 밝기에 따른 백라이트 밝기 자동 조절의 일 실시예를 나타낸 블록도.3 is a block diagram showing an embodiment of automatic backlight brightness adjustment according to the ambient brightness according to the present invention.

Claims (1)

소정의 직류 전압을 출력하는 전원부(100)와; 상기 전원부(100)의 직류 전압을 인가 받아 백라이트 구동용 교류 전압으로 변환시키는 인버터(110)와, 주위 밝기에 따라 신호를 출력하는 광센서부(120)와, 상기 광센서부(120)의 신호를 증폭하는 증폭부(130)와; 상기 인버터(110)의 교류 전압을 인가 받아 증폭부(130)의 신호에 따라 출력 전류 세기를 조절하는 휘도 조절부(140)와; 상기 휘도 조절부(140)의 전류 세기에 비례하여 빛을 발하는 백라이트(150)를 포함하여 이루어지는 백라이트 밝기 자동 조절 장치.A power supply unit 100 for outputting a predetermined DC voltage; The inverter 110 receives the DC voltage of the power supply unit 100 and converts it into an AC voltage for driving a backlight, an optical sensor unit 120 that outputs a signal according to ambient brightness, and a signal of the optical sensor unit 120. An amplification unit 130 for amplifying the; A brightness controller 140 for controlling an output current intensity according to a signal of the amplifier 130 by receiving an AC voltage of the inverter 110; And a backlight (150) which automatically emits light in proportion to the current intensity of the brightness controller (140). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940015340A 1994-06-30 1994-06-30 Backlight brightness automatic adjustment device KR960001826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940015340A KR960001826A (en) 1994-06-30 1994-06-30 Backlight brightness automatic adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940015340A KR960001826A (en) 1994-06-30 1994-06-30 Backlight brightness automatic adjustment device

Publications (1)

Publication Number Publication Date
KR960001826A true KR960001826A (en) 1996-01-25

Family

ID=66688822

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940015340A KR960001826A (en) 1994-06-30 1994-06-30 Backlight brightness automatic adjustment device

Country Status (1)

Country Link
KR (1) KR960001826A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980068471A (en) * 1997-02-20 1998-10-15 김광호 Backlight of liquid crystal display for reducing power consumption
KR19990073764A (en) * 1998-03-03 1999-10-05 이종수 Monitor device with adjustable brightness
KR100621102B1 (en) * 2004-08-19 2006-09-19 삼성전자주식회사 Computer
KR102346271B1 (en) * 2021-06-18 2022-01-03 주식회사 바이오티엔에스 Device for sample collection and method using the same
KR20230093090A (en) * 2021-12-17 2023-06-27 블루센 주식회사 Constant Flow Apparatus having Microbubble Removing Function

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980068471A (en) * 1997-02-20 1998-10-15 김광호 Backlight of liquid crystal display for reducing power consumption
KR19990073764A (en) * 1998-03-03 1999-10-05 이종수 Monitor device with adjustable brightness
KR100621102B1 (en) * 2004-08-19 2006-09-19 삼성전자주식회사 Computer
KR102346271B1 (en) * 2021-06-18 2022-01-03 주식회사 바이오티엔에스 Device for sample collection and method using the same
KR20230093090A (en) * 2021-12-17 2023-06-27 블루센 주식회사 Constant Flow Apparatus having Microbubble Removing Function

Similar Documents

Publication Publication Date Title
WO2004019312A3 (en) Apparatus for supplying power, backlight assembly and liquid crystal display apparatus having the same
EP0572207A3 (en) Constant brightness liquid crystal display backlight control system
TW200614129A (en) Light emitting element drive device and display system
KR910016198A (en) Display control device that changes the luminance according to the state of the power supply circuit
TW200604676A (en) Display device and driving device for a light source
JPH0424611A (en) Liquid crystal display device with automatic contrast adjusting function
KR960001826A (en) Backlight brightness automatic adjustment device
JPH11298058A (en) Piezoelectric transformer-inverter for driving cold cathode tube, liquid crystal display and advertisement apparatus
JPH11283759A (en) Liquid crystal display device
KR100229559B1 (en) Fluorescent lamp controlling arrangement and light sensor circuit
JPH08114801A (en) Liquid crystal display device
KR970047702A (en) Display unit control unit of refrigerator
JPH0627440A (en) Liquid crystal display device
JPH0420925A (en) Liquid crystal display device
KR20080000058A (en) Auto brightness control method for liquid crystal display
JP2007294341A (en) Back-light control circuit
KR970022409A (en) Backlight brightness automatic control device according to usage environment
KR970014478A (en) Inverter stand that adjusts the brightness according to the ambient light
KR950001831A (en) Light amount automatic control exposure device
JPH05127602A (en) Illuminator
KR960025290A (en) Light Intensity Control Device for Ambient Light Adaptive Light Emitting Display
ES2024535B3 (en) ELECTRICAL SUPPLY DEVICE FOR A LIGHT SOURCE USING HALOGEN LAMPS.
KR970076791A (en) Automatic luminance control circuit of digitron and optical button in VCR
KR100416707B1 (en) Display light modulating apparatus
JPH0225132Y2 (en)

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination