Invention Grant
- Patent Title: Display device and light source
- Patent Title (中): 显示设备和光源
-
Application No.: US12477731Application Date: 2009-06-03
-
Publication No.: US08179364B2Publication Date: 2012-05-15
- Inventor: Takaji Numao
- Applicant: Takaji Numao
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP11-288016 19991008; JP2000-305405 20001004
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A display device in accordance with the present invention includes: a gate driver for carrying out display scanning on pixels sequentially in a first direction of a TFT liquid crystal panel so as to set pixels to display states thereof according to information to be displayed by the pixels in the TFT liquid crystal panel, the pixels being arranged in two dimensions and being individually controllable in terms of the display state through illumination; and a backlight unit for illuminating the individual pixels with intensity of light which increases and subsequently decreases in synchronism with the display scanning carried out by the gate driver, but only after the display scanning. The arrangement enables the backlight flashing period to be determined independently from a TFT panel scanning period or response time of liquid crystal, ensures an extended operating time of a TFT panel, effects a display period equal to, or longer than, the black blanking type, and achieves higher contrast than the black blanking type.
Public/Granted literature
- US20090237349A1 Display device and light source Public/Granted day:2009-09-24
Information query
IPC分类: