Shenzhen China Star Optoelectronics Technology Co., Ltd.

Hkc Corporation Limited

Chongqing Hkc Optoelectronics Technology Co., Ltd.

Tencent Technology (shenzhen) Company Limited

Dekang Zeng

Shuixiu Hu

Dongsheng Guo

Yi Luo

Xiaoping Tan

Yu-Yeh Chen

Jiehui Qin

Wenqin Zhao

Fengcheng Xu

Yuhong Fu

Weijie Shen

Yuhan Huang

Ziyi Cui

Siqi Zhao

Jingyang Qin

A method for determining similarity of adjacent rows in a picture, the method includes obtaining feature value of corresponding sub-pixel of each row of picture data in a frame of picture data; subtracting feature values of corresponding sub-pixels of two adjacent rows of picture data in the frame of picture data, and summing absolute values of multiple differences obtained from subtracting; and determining similarity of the two adjacent rows of picture data in the frame of picture data according to the summed value. The present application further provides a display device, the display device includes an apparatus for determining two adjacent rows in a picture, the apparatus includes processor and memory for implementing steps of the above methods.

Method for determining similarity of adjacent rows in a picture and display device

Embodiments of the present disclosure provide an over-voltage protection method, an over-voltage protection device and a display device. When the voltage value of the output signal is greater than the first preset voltage threshold, it is determined whether the voltage value of the output signal meets the preset over-voltage protection condition. If the voltage value of the output signal is detected to meet the preset over-voltage protection condition, the first control signal is output to stop output of the output signal or lower the voltage value of the output signal.

Over-voltage protection method and device cross-references to related application

This application discloses an overcurrent protection method, an overcurrent protection circuit, and a display device. The overcurrent protection method includes: setting an overcurrent protection value as an overcurrent protection threshold of a current clock signal branch; enabling the overcurrent protection threshold, and controlling to turn off a level shifting circuit; detecting a real-time current of a current clock signal branch in a first substrate row driving circuit; and comparing the real-time current with the overcurrent protection threshold, and when the real-time current is greater than or equal to the overcurrent protection threshold, cutting off a power supply of the current clock signal branch in the first substrate row driving circuit, and enabling overcurrent protection.

Overcurrent protection method, overcurrent protection circuit, and display device

This application discloses a data processing method for a display panel, and a display apparatus. The data processing method includes steps of: setting a low-voltage differential signaling including data bits and a select status bit, and assigning a value to the select status bit according to a corresponding select low-voltage differential signaling; receiving, by a timing controller, the low-voltage differential signaling; and reading, by the timing controller, the select status bit of the low-voltage differential signaling, processing the low-voltage differential signaling according to the select status bit, and converting the low-voltage differential signaling into a data format corresponding to the select status bit.

Data processing method for display panel, and display apparatus

A method for determining similarity of adjacent rows of an image, the method includes: obtaining feature value of corresponding sub-pixel of each row of image data in a frame of image data; compressing obtained feature values of the corresponding sub-pixels of each row of image data to obtain compressed feature values of the corresponding sub-pixels of each row of image data; subtracting compressed feature values of corresponding sub-pixels of two adjacent rows of image data in the frame of image data, and summing absolute values of multiple differences obtained from subtracting; and determining similarity of the two adjacent rows of image data in the frame of image data according to the summed value. The present application further provides a display device.

Method and display device for determining similarity of adjacent rows of an image

Over-voltage protection method and device

Disclosed are a spread-spectrum decoding method for a transmitted signal and a display apparatus. The method comprises: acquiring a fixed input frequency of an input signal, and taking the fixed input frequency as a decoding frequency; performing a calculation according to the fixed input frequency to obtain a cycle number N of the input signal within a pre-set time range; determining whether, during the pre-set time range, the ratio of the number of cycles corresponding to the input frequency after the spread-spectrum processing, which is greater than or less than the decoding frequency, to the cycle number N is greater than or equal to a pre-set percentage; if so, adding a one stage pre-set adjustment frequency value to the decoding frequency or subtracting same from the decoding frequency so as to obtain a new decoding frequency; and taking the new decoding frequency as an updated decoding frequency.

Spread-spectrum decoding method for transmitted signal and display apparatus

The present application discloses a method for color shift compensation based on an abnormal image detection and a display device, including storing inputted n numbers of sub-pixel values in a row storage space; judging every spaced two of the sub-pixel values whether are the same or not; initiating a color shift compensation if the spaced two of the sub-pixel values being different; judging every adjacent two of the sub-pixel values whether are different if every spaced two of the sub-pixel values are the same; judging every one of the sub-pixel values in a current row storage space whether is different from a sub-pixel value in a previous row storage space corresponding to the sub-pixel value in the current row storage space; doing not initiate a color shift compensation if every one of the sub-pixel values in the current row storage space is different from that in the previous row.

Method for color shift compensation based on abnormal image detection

A method for driving a display panel includes obtaining a gray scale value and an abscissa value of a current sub-pixel, compensation gain values and coordinate values of boundary lines of each interval, a gray scale value of a sub-pixel of a previous row; performing a query in a gray scale lookup table according to the gray scale value of the current sub-pixel and the gray scale value of the sub-pixel of the previous row of the display panel to obtain an initial gray scale value of the current sub-pixel, performing a calculating to obtain a gray scale variation compensation value of the current sub-pixel; obtaining an interval of the current sub-pixel located; performing the calculating to obtain a compensation value of the interval of the current sub-pixel located; and obtaining and outputting a final compensation gray scale value of the current sub-pixel by performing a linear interpolation.

Method for driving display panel and display device

A liquid crystal display (LCD) includes a timing controller, a source driver IC, and a liquid crystal panel. The timing controller transmits data including a gamma value corresponding to a pending frame to the source driver IC. The source driver IC generates grayscale voltages supplied to pixels of a liquid crystal panel based on a gamma value corresponding to the pending frame and the grayscales of the pixels corresponding to the pending frame. The liquid crystal panel shows the pending frame based on the grayscale voltages supplied to each of the pixels. The gamma value corresponding to the pending frame is different from the gamma value corresponding to adjacent frames. Adopting the LCD can greatly lower the color shift from a large view angle and enlarge a view angle without increasing the production costs or lowering the transmittance of the liquid crystal panel.

Liquid crystal display and method of improving color shift arised from large view angle

Disclosed is a method for reducing electromagnetic interference of LCD data signal. The method, while ensuring that decoding frequency bandwidth of a receiving terminal of a timer control register remains unchanged, correctly decodes high-speed transmission signals which use a spread spectrum function, which can effectively reduce electromagnetic interference, avoid noise, quickly and correctly decode high-speed transmission signals which use a spread spectrum function, and enable an image to be displayed normally.

Method for reducing electromagnetic interference of LCD data signal

The present disclosure provides a digital to analog conversion (DAC) circuit and a data source circuit chip, the DAC circuit includes: first MOS tubes with the same number of the inputted digital bits; a second resistance, one end of the second resistance connects to the reference voltage, another end of the second resistance connects to the output terminal of the circuit; a second MOS tube, the drain of the second MOS tube connects to the output terminal of the circuit, the gate of the second MOS tube receives a row blank signal; and a capacitor, one end of the capacitor connects to the output terminal, another end of the capacitor is grounded. Using the above circuit and data source circuit chip, can greatly reduce the number of the MOS tube used in the DAC circuit, to effectively reduce the volume of the data source circuit chip and cost.

Digital to analog conversion circuit and data source circuit chip

A display device and a control method thereof are provided. The display device includes a source module and an array module. The source module includes a receiving unit receiving the image signal and extracting a control signal and a pixel signal from the image signal, a clock signal generating unit generating a plurality of clock signals, wherein periods of each clock signal of the plurality of clock signal are the same and high level periods of each clock signal do not overlap with each other, a level boosting unit boosting a voltage of the extracted control signal and pixel signal to the analog operating voltage, and a digital-to-analog conversion unit converting the voltage of the boosted pixel signal into the grayscale voltage. The array module includes a shift register outputting the pixel signal having the grayscale voltage based on the boosted control signal and the generated plurality of clock signals.

Display device and control method thereof

There provides a drive system for a liquid crystal display, which includes: a timing controller for generating a scanning start signal; a level shifter for boosting the generated scanning start signal and generating at least one clock signal according to the boosted scanning start signal; and a gate driver for scanning and driving gate lines according to the boosted scanning start signal and the generated clock signal. There also provides a drive method of a liquid crystal display. With the drive system and drive method of a liquid crystal display provided in the present invention, it can reduce the pins required by the timing controller and the level shifter, thus the packages of the timing controller and the level shifter get smaller, thereby reducing the package cost.

Drive system and drive method of liquid crystal display

A method and an authentication apparatus are provided by the embodiments of the present disclosure. In the embodiments of the present disclosure, data to be processed is obtained, a character sequence is generated based on the data, physiological feature information sequentially inputted by a user is received to obtain a feature information sequence and it is determined whether every piece of physiological feature information in the feature information sequence matches with the corresponding character in the character sequence.

Growing community of inventors

Guangdong, China

Dekang Zeng