Invention Grant
US5896114A Matrix type display device, electronic system including the same and
method of driving such a display device
失效
矩阵式显示装置,包括其的电子系统和驱动这种显示装置的方法
- Patent Title: Matrix type display device, electronic system including the same and method of driving such a display device
- Patent Title (中): 矩阵式显示装置,包括其的电子系统和驱动这种显示装置的方法
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Application No.: US970611Application Date: 1997-11-14
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Publication No.: US5896114APublication Date: 1999-04-20
- Inventor: Yohichi Imamura , Shigeki Aoki , Norio Koizumi
- Applicant: Yohichi Imamura , Shigeki Aoki , Norio Koizumi
- Applicant Address: JPX Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JPX Tokyo
- Priority: JPX5-282720 19931111
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/36 ; G09G5/00 ; G09G5/22
Abstract:
The present invention provides a matrix type display device which simplifies the process in a display signal generating circuit while relieving the load on an external CPU, and which arranges freely character and icon display areas while preventing the quality of display from being degraded by the shadow phenomenon and others. A display code memory stores character display codes and icon display codes for one image at a desired address arrangement. A pattern generating circuit transfers image patterns for the display codes to a display signal transferring circuit through a multiplexer. A decoder selecting device is responsive to a decoder select signal to select a decoder, thereby controlling voluntarily the timing of latch signal generation. Display signal input in the time division manner is latched in first and second latch circuits through the latch signal. Thereafter, the display signal is transferred to a signal electrode driving circuit through a line memory to display an image on a matrix panel.
Public/Granted literature
- US5349642A Method and apparatus for authentication of client server communication Public/Granted day:1994-09-20
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