Display panel driver unit

Details Display panel driver unit Display panel driver unit

2008-09-16

2008-09-16

Tung, Kee M. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S545000, C345S558000, C345S204000, C345S571000, C710S053000, C710S057000

Reexamination Certificate

active

11143959

ABSTRACT:
To provide an inexpensive display panel driver unit with a built-in memory, which is capable of achieving the same operation as that obtained in using a dual port memory by employing a single port RAM without reduction in an operation speed.A reservation buffer14for storing an address and data in a memory writing is provided. When a display reading and a memory writing occurs simultaneously and row addresses of the memory writing and the display reading agree with each other, the memory writing is executed and also read data from addresses except a write address together with write data into the write address are used as data of the display reading. Also, when the row addresses of the memory writing and the display reading are different from each other, the write address and data are stored in the reservation buffer and also the display reading is executed. The similar mediation is applied in executing the reserved writing.

REFERENCES:
patent: 6789175 (2004-09-01), Ryan et al.
patent: 6965365 (2005-11-01), Nakamura
patent: 2003/0222880 (2003-12-01), Waterman
patent: 2004/0212624 (2004-10-01), Reynolds
patent: 07-175445 (1995-07-01), None

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