Leadis Technology, Inc.

Chan Young Jeong

Keunmyung Lee

Chang Oon Kim

Sung Tae Ahn

Yung Jin Jeon

Jeong Hwan Lee

Young Seok Sohn

An organic light-emitting diode display driver adjusts the display scan period of the current driving the organic light-emitting diodes of a selected row based upon the sum of the display data corresponding to the selected row, thereby removing crosstalk in the OLED display panel. The driver includes an adder for adding the display data corresponding to the selected row and a scan period look-up table storing display scan period values. The scan period look-up table is configured such that it outputs display scan period values substantially proportional or inversely proportional to the sum of the display data to remove bright crosstalk or dark crosstalk, respectively, in the OLED display panel.

Removing crosstalk in an organic light-emitting diode display by adjusting display scan periods

A scheme to reduce output variations in a column driver for a flat-panel display by sharing the characteristics of analog circuit is disclosed. An input multiplexer is provided between two neighboring digital inputs, and an output multiplexer is provided between two neighboring analog outputs so that the characteristics of neighboring analog circuits can be shared by multiplexing. The averaging effect by sharing reduces variations in the output. The multiplexing may be done either in time division or on a frame-by-frame basis.

Method and apparatus for reducing output variation by sharing analog circuit characteristics

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Seongnam-si, South Korea

Chan Young Jeong