Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Reexamination Certificate
2011-05-10
2011-05-10
Wang, Quan-Zhen (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
C345S211000
Reexamination Certificate
active
07940257
ABSTRACT:
This invention describes methods and circuits for the segment driver circuit in a LCD driver system as well as application specific SEG decoder. The methods include the following steps: the array signal undergoes an inversion process (from 1 to 0, or from 0 to 1); the data and the array signal that has been processed through the inversion process then undergo a matrix operation; the signal that has gone through the matrix operation is then sent to a BBM (break before make) circuit. The signal processor of the application specific SEG decoder performs the inverse operation (from 1 to 0, or from 0 to 1) on the array signal; the decoding circuit performs the matrix operation on the signal that has been inversed (from 1 to 0, or from 0 to 1) before sending it to the BBM circuit. The methods described in this invention first process the array signal through field processing and inverse processing (from 1 to 0, or from 0 to 1) before undergoing the matrix operation, rather than first performing the matrix operation and then selecting an output based on the field signal. Therefore, this invention enhances the SEG decoder by simplifying the circuitry, reducing energy consumption, lowering cost, and making it easier to realize.
REFERENCES:
patent: 7535451 (2009-05-01), Nohtomi et al.
patent: 2003/0011582 (2003-01-01), Morita
patent: 2004/0189581 (2004-09-01), Sako et al.
Feng Wei
Yang Yun
Zhao Chunbo
BYD Company Limited
Ma Calvin C
Venture Pacific Law, PC
Wang Quan-Zhen
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