El display driver and El display

Details El display driver and El display El display driver and El display

2007-08-07

2007-08-07

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S030000, C345S036000, C345S076000, C345S214000, C315S169300, C315S291000

Reexamination Certificate

active

10772288

ABSTRACT:
A pulse having a width of 20H is inserted into STV in correspondence with a vertical blanking period (a period of 21 H), and the speed of CKV is increased to 12 times the original speed over the period of 21 H at the same time the pulse becomes High. A video signal in the vertical blanking period is at a black level, so that black is written into all organic EL elements in the period. An organic EL display continues to display black for a time period elapsed until a video is next written by the original line selection pulse. The video signal is corrected such that the shorter a video display time period provided to the EL element becomes, the higher the input video luminance of the EL element becomes in order to display black.

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patent: 2004-046218 (2004-02-01), None

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