发明授权
US08497854B2 Display drive apparatus, display apparatus and drive method therefor
有权
显示驱动装置,显示装置及其驱动方法
- 专利标题: Display drive apparatus, display apparatus and drive method therefor
- 专利标题(中): 显示驱动装置,显示装置及其驱动方法
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申请号: US12079887申请日: 2008-03-28
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公开(公告)号: US08497854B2公开(公告)日: 2013-07-30
- 发明人: Jun Ogura
- 申请人: Jun Ogura
- 申请人地址: JP Tokyo
- 专利权人: Casio Computer Co., Ltd.
- 当前专利权人: Casio Computer Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Holtz, Holtz, Goodman & Chick, P.C.
- 优先权: JP2007-091367 20070330
- 主分类号: G09G5/00
- IPC分类号: G09G5/00
摘要:
A display drive apparatus includes a detection voltage applying circuit that applies a predetermined detection voltage to the drive element of the pixel drive circuit, a voltage detecting circuit that detects a voltage value corresponding to a device characteristic unique to the drive element after a predetermined time elapses after the application of the detection voltage to the drive element by the pixel drive circuit, and a gradation designating signal generating circuit that generates a gradation designating signal based on an absolute value of a voltage component according to a gradation value of display data and a value, acquired by multiplying an absolute value of the voltage value detected by the voltage detecting circuit, by a constant greater than 1, and applies the gradation designating signal to the pixel drive circuit, whereby a change in device characteristic.
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