Digital video signal processing device for LCD

• Main Authors: CHEN, CHIENIH, TSAI, JUNG-HSIU, HUNG, CHI-MAO
• Format: Patent
• Language: English
• Published: 21.08.2006
• Edition: 7
• 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; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A digital video signal processing device for LCDs. A display memory stores digital video signals. A scaler controller set on a first circuit board adjusts the image size of the digital video signal and outputs a first display data. The LCD includes a plurality of display cells respectively coupled to the corresponding data electrode and gate electrode. The LCD displays the image data according to a second display data. An LCD driver includes a data driver for driving the data electrodes and a gate driver for driving the gate electrodes. A timing controller set on a second circuit board connected to the first circuit board, controls the LCD driver. A gamma adjusting circuit only set on one of the first circuit board, the second circuit board and the LCD driver, adjusts the brightness of the first display data and generates the second display data.