发明授权
- 专利标题: Display panel driving apparatus
- 专利标题(中): 显示面板驱动装置
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申请号: US261994申请日: 1988-10-25
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公开(公告)号: US4985698A公开(公告)日: 1991-01-15
- 发明人: Hiroyuki Mano , Terumi Takashi , Kazuhiro Fujisawa , Kaoru Hasegawa , Shinzo Matsumoto , Mitsuhisa Fujita
- 申请人: Hiroyuki Mano , Terumi Takashi , Kazuhiro Fujisawa , Kaoru Hasegawa , Shinzo Matsumoto , Mitsuhisa Fujita
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-270126 19871028
- 主分类号: G02F1/133
- IPC分类号: G02F1/133 ; G09G3/36 ; G09G5/02
摘要:
An apparatus for driving a color display panel operating at a high frame frequency. The color display panel driving apparatus includes a line memory for storing data of 1/2 of a line at its odd-numbered addresses and then storing data of the remaining 1/2 of the line at its even-numbered addresses, a first column drive circuit including a shift register to which the data stored at the odd-numbered addresses of the line memory are supplied and which is connected at its bit outputs to column-direction signal wires associated with a left-hand half display area of the display panel, and a second column drive circuit including a shift register to which the data stored at the even-numbered addresses of the line memory are supplied and which is connected at its bit outputs to column-direction signal wires associated with a right-hand half display area of the display panel. After picture data of one line are completely stored in the line memory, the picture data are substantially simultaneously supplied from the odd-numbered and even-numbered addresses of the line memory to the first and second column drive circuits respectively.