Shenzhen China Star Optoelectronics Technology Co., Ltd.

Liwei Chu

Jhenwei He

Yuyeh Chen

Chihhao Wu

Pingsheng Kuo

Hao Li

Xianming Zhang

Yichien Wen

Houliang Hu

Chunhuai Li

An LCD includes a substrate, gate on array (GOA) units connected in series, a controller, a level shifter, and an over-current protection circuit. The substrate includes a pixel array section and a circuit arrangement section. The GOA units are used for outputting a scanning signal to the pixel array section based on voltage levels of clock signals and a voltage level of a start signal. The controller generates the clock signals and the start signal. The level shifter adjusts the voltage levels of the clock signals and the voltage level of the start signal. The over-current protection circuit outputs an adjusting signal to the controller to turn off the LCD when a magnitude of one of the plurality of clock signals is over a predetermined value. Therefore, the LCD is turned off for a while, preventing from being burnt out.

Liquid crystal display

The present invention provides a method of compensating AMOLED IR Drop and a system. In the method of compensating AMOLED IR Drop, many times of iterated operations are performed to the power supply voltages and the driving currents of respective pixel driving circuits coupled in series on the same power supply line, and the adjustment and compensation are performed to the initial values Vdatato Vdatan of the data signal voltages for being inputted to respective pixel driving circuits according to the power supply voltages OVddto OVddn of respective pixel driving circuits obtained with the last iterated operation of the calculation unit, and outputs the compensated data signal voltages Vdatato Vdatan corresponding to respective pixel driving circuits. The method can make that the driving currents flowing through respective pixels can be more uniform for solving the mura problem caused by IR Drop. The system of compensating AMOLED IR Drop can improve the brightness uniformity of an AMOLED display panel for solving the mura problem caused by IR Drop with setting the calculation unit, the storage unit, the compensation unit and the plurality of pixel driving circuits.

Method of compensating AMOLED IR drop and system

The present invention provides an AMOLED panel driving circuit and driving method. The driving circuit includes: an AMOLED panel (), a gate driver () and a source driver () each electrically connected to the AMOLED panel (), and a timing controller () and a gamma IC () each electrically connected to the source driver (). The timing controller () is further electrically connected to the gate driver () and the gamma IC (). The timing controller () uses two sets of gate control signal to control the gate driver (). The source driver () supplies a data signal to the AMOLED panel (). The data signal includes a plurality of data frames and each of the data frames includes a plurality of sub-data-frames having equal time intervals.

AMOLED (active matrix organic light emitting diode) panel driving circuit and driving method

The present invention provides a pixel arrangement method that reduces color shift of pattern retarder glasses based 3D display system and includes: providing a display panel, which includes a substrate and a plurality of primary pixels that is formed on the substrate in an array; dividing the primary pixels in 3D mode displaying in such a way that each of the primary pixels is divided into four sub-pixels, wherein the sub-pixels are of colors that are pure colors and two adjacent ones of the sub-pixels in either horizontal or vertical direction are of different colors; and dividing the primary pixels in 2D mode displaying in such a way that each of the primary pixels is divided into three or four sub-pixels, wherein the sub-pixels are of colors that are pure colors and two adjacent ones of the sub-pixels in either horizontal or vertical direction are of different colors.

Pixel arrangement method that reduces color shift of pattern retarder glasses based 3D display system in large view angle and display panel using same

A super-resolution reconstructing method includes: providing an original image including multiple original image pixel points arranged in an array; performing edge detecting on the original image by Canny_H method and considering pixel edge information of 4*4 area image range; performing 2*2 times interpolation zooming to edge pixel points and determining a type of the 4*4 area image as pure color entity area or non-pure color entity area according to the pixel edge information; performing a conditional interpolation individually on pure color entity area and non-pure color entity area; and obtaining a pixel 2*2 times interpolation zoomed super-resolution image. In pure color entity area, interpolation is performed according to edge information of 4*4 area image range to maintain border sharpness of pure color entity area and reduce jaggies. In non-pure color entity area, BiCubic_H interpolation is performed to enhance smoothness and sharpness of image.

Super-resolution reconstructing method for enhancing smoothness and sharpness of video image

A method for compensating large view angle Mura area of a flat display, comprising the steps of: 1) providing a flat panel including a number of main pixels, and a Mura area and a normal area; 2) setting two or more than two main pixels as a set of Mura area brightness adjustment units; 3) providing a driving circuit for driving the number of main pixels within the flat panel, and the driving circuit supplying a number of gamma voltages; and 4) using the driving circuit to apply two or more than two different gamma voltages to the set of main pixels within the Mura area brightness adjustment units such that the gray scales of Mura area within a center view area and the large view angle area are closer to the gray scales of the normal area thereby achieving a uniform brightness across the flat panel. Accordingly, with the method provided, the gray scales of the central view and the large view angle of the Mura area are substantially closer to the gray scales of the normal area. The yield of the flat panel is increased, and the quality of the flat display using such a flat panel is also guaranteed.

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Shenzhen, China

Liwei Chu