KR950025472A

KR950025472A - Thin film type liquid crystal display device with optical sensor

Info

Publication number: KR950025472A
Application number: KR1019940002726A
Authority: KR
Inventors: 김일호
Original assignee: 이헌조; 엘지전자 주식회사
Priority date: 1994-02-16
Filing date: 1994-02-16
Publication date: 1995-09-15

Abstract

본 발명은 광센서가 적용된 박막형 액정표시소자에 관한 것으로, 종래 광센서가 적용된 박막형 액정표시소자는 광센서의 형성으로 인하여 유효표시영역이 감소되며, 입사되는 외부 빛이 상부판넬의 편광판, 블랙매트릭스, 칼라필터를 통과하게 되므로 광손실이 발생하게 되는 문제점이 있었다. 본 발명은 이러한 문제점을 해결하기 위하여 종래의 블랙매트릭스를 다층의 광센서로 형성하여 반사율을 줄이고, 그 광센서의 출력을 활용하여 표시장치의 구동조건 및 백라이트(Back Light)의 밝기를 조절할 수 있도록 한 광센서가 적용된 박막형 액정표시소자를 제공하는 것이다.The present invention relates to a thin film type liquid crystal display device to which an optical sensor is applied. In the thin film type liquid crystal display device to which a conventional optical sensor is applied, the effective display area is reduced due to the formation of the optical sensor, and the incident external light is applied to the polarizing plate and the black matrix of the upper panel. There is a problem that light loss occurs because it passes through the color filter. In order to solve this problem, the present invention reduces the reflectance by forming a conventional black matrix as a multi-layered optical sensor, and uses the output of the optical sensor to adjust the driving conditions of the display device and the brightness of the backlight. It is to provide a thin film type liquid crystal display device to which one optical sensor is applied.

Description

Thin film type liquid crystal display device with optical sensor

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

제1도는 종래 광센서가 적용된 박막형 액정표시소자의 구조도,1 is a structural diagram of a thin film type liquid crystal display device to which a conventional optical sensor is applied;

제2도는 (가)는 제1도에 대한 광센서의 평면구조도, (나)는 제1도에 대한 광센서의 단면구조도.2 is (a) a plan view of the optical sensor of FIG. 1, and (b) is a cross-sectional view of the optical sensor of FIG.

제3도는 본 발명 광센서가 적용된 박막형액정표시소자 구조도.3 is a structure diagram of a thin film type liquid crystal display device to which the optical sensor of the present invention is applied.

제4도의 (가)는 본 발명에 대한 광센서의 평면구조도. (나)는 본 발명에 대한 광센서의 단면구조도 및 매질수 증가에 의한 다중반사 표시도.Figure 4 (a) is a plan view of the optical sensor according to the present invention. (B) is a cross-sectional structure diagram of the optical sensor according to the present invention and the multi-reflection display by increasing the number of media.

제5도는 본 발명에 대한 하부판넬의 다른 구조도.5 is another structural diagram of a lower panel of the present invention.

제6도는 본 발명에 대한 광센서의 다른 구조도.6 is another structural diagram of an optical sensor according to the present invention.

Claims

A thin film type liquid crystal in which a lower panel in which a thin film transistor and a pixel electrode are formed on a glass substrate having a polarizing plate attached thereto, and an upper panel in which a black matrix and a color filter are formed on another glass substrate having a polarizing plate attached thereon are bonded together with a liquid crystal interposed therebetween. The display device according to claim 1, wherein the black matrix of the upper panel is formed of an optical sensor in which a metal electrode, an optical sensing film, and a transparent polar electrode are sequentially patterned.

The thin film type liquid crystal display device according to claim 1, wherein the metal electrode surface of the optical sensor is formed with serrated bends.

※ Note: The disclosure is based on the initial application.