Integral-type liquid crystal panel with image sensor function

• US 20050202609A1
• Filed: 03/08/2005
• Published: 09/15/2005
• Est. Priority Date: 10/20/1997
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Kuwabara, Hideaki, Sakakura, Masayuki, Zhang, Hongyong
• Granted Patent: US 7,042,548 B2
• Time in Patent Office: Days
• US Class Current: 438/164
• CPC Class Codes: G02F 1/13312 Circuits comprising photodetectors for purposes other than feedback
• CPC Class Codes: G02F 1/133345 Insulating layers G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/135 Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied G02F1/133348 takes precedence
• CPC Class Codes: G02F 1/136227 Through-hole connection of the pixel electrode to the active element through an insulation layer
• CPC Class Codes: G02F 1/13624 having more than one switching element per pixel
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/13629 Multilayer wirings
• CPC Class Codes: H01L 27/12 the substrate being other than a semiconductor body, e.g. an insulating body
• CPC Class Codes: H01L 27/14665 Imagers using a photoconductor layer
• CPC Class Codes: H04M 1/0264 for a camera module assembly
• CPC Class Codes: H04M 1/0266 for a display module assembly
• CPC Class Codes: H04N 1/00127 Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
• CPC Class Codes: H04N 1/00129 with a display device, e.g. CRT or LCD monitor with a television apparatus H04N1/00283; arrangements for control of display devices G09G
• CPC Class Codes: H04N 1/028 for picture information pick-up
• CPC Class Codes: H04N 1/02805 with photodetectors arranged in a two-dimensional array

Abstract

A display device using a novel semiconductor device, which includes a pixel matrix, an image sensor, and a peripheral circuit for driving those, that is, which has both a camera function and a display function, and is made intelligent is provided and a method of manufacturing the same is also provided. One pixel includes a semiconductor device for display and a semiconductor for light reception, that is, one pixel includes semiconductor devices (insulated gate-type field effect semiconductor device) for controlling both display and light reception, so that the display device having a picture reading function is made miniaturized and compact.

Claims

1. An electronic device comprising:

a main body;

an active matrix type display panel provided at a first side of the main body, said active matrix type display panel comprising;

a substrate;

a plurality of pixel electrodes provided over the substrate; and

a plurality of photoelectric conversion elements provided over the substrate;

a light receiving portion provided at a second side of the main body wherein the first side is opposite to the second side,

wherein light received by the light receiving portion is sensed by the plurality of photoelectric conversion elements of the active matrix display panel.