US 2012/0056862 A1 · DISPLAY DEVICE AND ELECTRONIC APPARATUS

Abstract

To provide a display device whose display can be recognized even in dark places or under the strong outside light. The display device performs display by controlling the number of gray scales in accordance with the intensity of outside light, which means a display mode can be switched in accordance with the data to be displayed on the display screen. A video signal generation circuit is controlled in each display mode in such a manner that it directly outputs an input video signal with an analog value, outputs a signal with a binary digital value, or outputs a signal with a multivalued digital value. As a result, gray scales displayed in pixels are timely changed. Accordingly, clear images can be displayed while maintaining high visibility in various environments, in the wide range from, for example, dark places or indoors (e.g., under a fluorescent lighting) to outdoors (e.g., under the sunlight).

Claims26

Dependent claims

An organic light-emitting device comprising:

a pixel portion comprising a plurality of pixels arranged in matrix over a substrate;
at least three transistors provided in each of the plurality of pixels;
an optical sensor,
wherein at least one of the three transistors includes an oxide semiconductor layer,
wherein the oxide semiconductor layer is provided between a gate insulating layer and an gate electrode layer, and
wherein the optical sensor detects an intensity of outside light received by the pixel portion.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/295,284Filed 14 Nov 2011

Priority

JP 2005-14883320 May 2005

Published

8 Mar 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G09G 3/2077
Display of intermediate tones: by a combination of two or more gradation control methods
G09G 3/2092
For presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged…:…
G09G 3/3275
Organic, e.g. using organic light-emitting diodes [OLED]: details of drivers for data electrodes
G09G 2310/0259
Details of the generation of driving signals: with use of an analog or digital ramp generator in the column driver or in the pixel circuit

Display device and electronic apparatus

Life of this patent

Display device and electronic apparatus

Life of this patent

Abstract

Claims26