Title:
DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/040090
Kind Code:
A1
Abstract:
A plurality of sensor pixel circuits for detecting a difference between the amount of light at a backlight-on time and the amount of light at a backlight-off time are arranged on a pixel area. The backlight is turned on and off a plurality of times per one frame period, and reset of the sensor pixel circuits and read-out from the sensor pixel circuits are performed in parallel and line-sequentially each over a period of approximately one frame for each. A plurality of two types of sensor pixel circuits for separately detecting the amount of light at a backlight-on time and the amount of light at a backlight-off time may be arranged on the pixel area, and the difference between the two types of amount of light may be obtained using a difference circuit. As a result, a display device having an input function that does not depend on the optical environment is provided.
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Inventors:
USUKURA NARU
KATOH HIROMI
SUGITA YASUHIRO
TANAKA KOHHEI
YAMAMOTO KAORU
BROWN CHRISTOPHER
KATOH HIROMI
SUGITA YASUHIRO
TANAKA KOHHEI
YAMAMOTO KAORU
BROWN CHRISTOPHER
Application Number:
PCT/JP2010/059682
Publication Date:
April 07, 2011
Filing Date:
June 08, 2010
Export Citation:
Assignee:
SHARP KK (JP)
USUKURA NARU
KATOH HIROMI
SUGITA YASUHIRO
TANAKA KOHHEI
YAMAMOTO KAORU
BROWN CHRISTOPHER
USUKURA NARU
KATOH HIROMI
SUGITA YASUHIRO
TANAKA KOHHEI
YAMAMOTO KAORU
BROWN CHRISTOPHER
International Classes:
G06F3/041; G02F1/133; G09G3/20; G09G3/34; G09G3/36; H04N1/028
Foreign References:
| JP2009205423A | 2009-09-10 | |||
| JP2009064074A | 2009-03-26 | |||
| JP2008203561A | 2008-09-04 |
Attorney, Agent or Firm:
SHIMADA, AKIHIRO (JP)
Akihiro Shimada (JP)
Akihiro Shimada (JP)
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