DRIVER OF DISPLAY DEVICE

• Main Author: HIGUCHI KOUJI
• Format: Patent
• Language: English; Japanese
• Published: 26.01.2017
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PURPOSE: To provide a driver of a display device capable of displaying an excellent image with no color irregularity conforming to variations in manufacturing, screen sizes or various specifications of the display device.CONSTITUTION: A driver of a display device comprises: a pixel drive voltage application part which converts a plurality of pixel data pieces indicating the luminance level of each pixel based on a video signal to a plurality of pixel drive voltages having the voltage values corresponding to the luminance levels and applies the pixel drive voltages to the display device; and a delay control part which controls the pixel drive voltage application part so as to apply each of the pixel drive voltages to the display device by sequentially delaying the pixel drive voltages for each group obtained by dividing the plurality of pixel drive voltages into a plurality of groups respectively containing t pixel drive voltages, and sets the delay time for delaying each of the pixel drive voltages to the delay time designated by a delay time designation signal.SELECTED DRAWING: Figure 2 【目的】製造上のバラツキ、画面サイズ、或いは表示デバイスの各種仕様に適合させて、色むらの無い良好な画像を表示させることが可能な表示デバイスのドライバを提供することを目的とする。【構成】映像信号に基づく各画素の輝度レベルを示す複数の画素データ片を輝度レベルに対応した電圧値を有する複数の画素駆動電圧に変換し、表示デバイスに印加する画素駆動電圧印加部と、複数の画素駆動電圧を夫々がｔ個の画素駆動電圧を含む複数のグループに区分けしたグループ毎に、画素駆動電圧の各々を順に遅延させて表示デバイスに印加するように画素駆動電圧印加部を制御すると共に、画素駆動電圧の各々を遅延させる遅延時間を遅延時間指定信号によって指定された遅延時間に設定する遅延制御部と、を有する。【選択図】図２