Drive method of an electro optical device, a drive circuit...

Details Drive method of an electro optical device, a drive circuit... Drive method of an electro optical device, a drive circuit...

2006-08-08

2006-08-08

Shalwala, Bipin (Department: 2673)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S055000, C345S060000, C345S063000, C345S068000, C345S089000, C345S100000, C345S103000, C345S210000, C345S690000, C345S691000, C315S169100, C349S077000, C349S083000

Reexamination Certificate

active

07088349

ABSTRACT:
A method of sub-field drive can display with a mode of placing emphasis on responsiveness and display with a mode of placing emphasis on gray-scale reproductiveness.A field is divided into plural sub-fields on a time axis, and each of such sub-fields is a control unit of driving a pixel. A code storing ROM stores a code that controls sub-fields to collecting on-voltage intensively in a former part of a field based on display data. Another code storing ROM stores a code that controls sub-fields to increase levels of gray scale based on display data. A data encoder determines whether each pixel of display data is an edge part of a moving image or not, selects a code that enables superior display in responsiveness at the edge part of a moving and selects a code that enables superior display in gray scale reproductiveness in other parts from the ROMs. Therefore, superior sight recognition of a moving image can be attained and reproduction of multi-levels gray scale in a still image can be available simultaneously.

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