Image input/output apparatus

Details Image input/output apparatus Image input/output apparatus

Filed on

1995-08-08

Date issued

1998-09-22

Examiner

Powell, Mark R.

Patent Class

Computer graphics processing and selective visual display system

SubClass

Plural physical display element control system

SubSubClass

Display elements arranged in matrix

Other Related Categories

G06F 3033

Type

Patent

Status

active

Patent number

058121099

Description

ABSTRACT:
An image input/output apparatus has a photoelectric conversion element, a display element, and a switch element on a substrate, and has a function of displaying an image using the display element by holding a display potential supplied via the switch element in the photoelectric conversion element, and a function of picking up an image by detecting a charge generated in response to light incident on the photoelectric conversion element via the switch element. The photoelectric conversion element is constituted by a first electrode layer, an insulating layer for preventing passage of a carrier of a first conductivity type and a carrier of a second conductivity type different from the first conductivity type, a photoelectric conversion semiconductor layer, an injection prevention layer for preventing injection of the carrier of the first conductivity type to the photoelectric conversion layer, and a second electrode layer. The image input/output apparatus does not require any complicated structure for shielding light, has good display and image pickup characteristics, and allows easy manufacturing processes with low cost.

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