Display unit and drive method therefor

Details Display unit and drive method therefor Display unit and drive method therefor

2005-06-21

2005-06-21

Lao, Lun-Yi (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S204000, C349S039000, C349S042000

Reexamination Certificate

active

06909415

ABSTRACT:
The present invention provides a display apparatus that can reduce a voltage irregularity and a brightness irregularity accompanied by making an enlarged and a high resolution type display apparatus. The display apparatus comprises plural pixel electrodes5arranged in a matrix, a switching element3connected with the pixel electrode, a scanning electrode1, a picture signal electrode2, an opposite electrode forming a capacitance with the pixel electrode5, and further comprising; a storage capacitance7between the pixel electrode5and the scanning electrode5other than the scanning electrode1of the present line; more than two capacitance elements connected with the pixel electrode5, including at least one of a gate-drain inter-electrode capacitance4of the switching element3and the storage capacitance7, having a different value according to the distance from the power feeding edge of the scanning electrode1; wherein, each capacitance in each pixel is set so that, when all capacitance connected with the pixel electrode5in a pixel is denoted as Ctot, a first capacitance ratio α gd=Cgd/Ctot increases continuously or in stages according to the distance from the power feeding edge of the scanning electrode1, or a second capacitance ratio α st=Cst/Ctot is substantially constant.

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Proceeding of the Fourth International Display Workshop (pp. 195-198) “An Advanced Capacitively Coupled Driving Method for Large Scale and High Resolution TFT-LCDs”.

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