Shenzhen China Star Optoelectronics Technology Co., Ltd.

Other

Tencent Technology (Shenzhen) Company Limited

Tcl China Star Optoelectronics Technology Co., Ltd.

Byd Company Limited

Jiang Zhu

Dongsheng Guo

Yu-Yeh Chen

Lei Sun

Li-wei Chu

Jhen-wei He

Bo Hu

Guang Li

Chao Ren

Jianbo Ding

Zhishou Wang

Huagao Li

Xijun Miao

Bin Zhao

Yu Wei Chen

Yu Wu

Zuomin Liao

Bing Han

Shih-hsun Lo

Yuhua Chang

Shui-chih Lien

Bing Hab

A data compression device and a compression method are provided. The data compression device includes a quantization table processing unit and a quantization unit. The quantization table processing unit determines a target quantization table in which a quantization coefficient satisfies a data distortion rate and a compression ratio of a preset condition according to a target compression ratio. By constructing different quantization tables for different data, a distortion rate is greatly reduced based on satisfying a compression ratio, and issues that the distortion rate and the compression ratio cannot be simultaneously satisfied in the prior art are alleviated.

Data compression device and compression method configured to gradually adjust a quantization step size to obtain an optimal target quantization step size

The present disclosure discloses an image decompression method, device, and display terminal. The method includes: a step of acquiring image compression data; a step of performing inverse quantization on the image compression data based on a preset inverse quantization factor to obtain inversely quantized data; wherein the inverse quantization factor is in integer form; and a step of performing an inverse discrete cosine transformation (DCT) on the inversely quantized data to obtain image data; wherein the inverse DCT includes bit-shift operations and addition operations.

Image decompression method, device and display terminal

The present disclosure provides a liquid crystal display device, an image displaying method thereof, and a backlight control device by disposing the backlight control device between a backlight module and a liquid crystal display panel, wherein the backlight control device divides an image into a plurality of pixel units, calculates corresponding dimming coefficients of the pixel units, and adjusts a first optical signal output by the backlight module according to a plurality of dimming coefficients to output a plurality of second optical signals, thereby achieving local dimming and improving display contrast of the liquid crystal display device.

Liquid crystal display device, image displaying method thereof, and backlight control device for local dimming

A method for annotating a target web page is performed at a server by: receiving an annotation obtaining request from a first terminal associated with a first member of an online chat group; identifying a first web page annotation and a first annotation position of the first web page annotation in a target web page; returning the first web page annotation and the first annotation position to the first terminal; receiving, from the first terminal, a second web page annotation and a second annotation position of the second web page annotation in the target web page; and forwarding the first and second web page annotations and the first and second annotation positions to a second terminal for display on the target web page at the second terminal in response to receiving a second annotation obtaining request from the second terminal.

Web page annotation displaying method and apparatus, and mobile terminal

An image edge processing method is disclosed. The method includes steps of: extracting a brightness component from an input image; calculating an edge probability value mp of each pixel in the image according to the extracted brightness component; calculating an enhancement coefficient A for each pixel based on the edge probability value mp; performing a noise detection according to the brightness component, and determining if each pixel in the image is a noise point; when the pixel is not a noise point, performing a logarithmic processing to the pixel in order to obtain a data w; enhancing an edge of the image according to the &#x3bb;, the w and the brightness component in order to obtain an enhanced brightness component data; and after performing a brightness component synthesis according to the enhanced brightness component data, outputting an enhanced image. An electronic device and computer readable storage medium are also disclosed.

Image edge processing method, electronic device, and computer readable storage medium

A method for annotating a target web page is performed at a terminal by: obtaining information content of the target web page and displaying the target web page; sending an annotation obtaining request to a server, the annotation obtaining request carrying an identifier of the target web page, wherein the server is configured to return a first web page annotation and information of first annotation position in the target web page, the first web page annotation including content that is annotated on the target web page before a current time, and the first annotation position information being used to determine a display position of the first web page annotation in the target web page; and dynamically displaying the first web page annotation on the target web page based on the first annotation position information after the first web page annotation and the first annotation position information are received.

An image processing method for a display device is provided. The method includes steps of: setting one of the multiple pixels arranged as a matrix of the image to be processed as a pixel to be processed, and using the pixel to be processed as a center and setting remaining pixels as reference pixels; obtaining a maximum brightness value and a minimum brightness value of the brightness of the pixel to be processed and the brightness of each reference pixel; determining a relationship of the brightness relation value between the pixel to be processed and the reference pixels and a preset reference value; when the brightness relation value is greater than the preset reference value, setting the brightness of the pixel to be processed as the maximum brightness value, otherwise setting the brightness of the pixel to be processed as the minimum brightness value.

Image processing method for display device

A drive method is provided for driving a liquid crystal display and includes receiving an image to be displayed, which includes multiple image pixels; setting different weights for primary color components of each of multiple image pixels of the image; implementing color washout compensation to the image according to the weights set for the primary color components of each of the multiple image pixels by varying brightness levels of the primary color components of each of the image pixels of the image; and driving the liquid crystal display to display the image so compensated.

Drive method and drive device of liquid crystal display

A liquid crystal display device mainly includes an upper substrate, a lower substrate, a backlight module, an electrochromic electrode layer, an electrochromic layer, a common electrode layer, a liquid crystal layer, a pixel electrode layer, a thin film transistor (TFT) switching layer, and a storage capacitor layer. Subpixels of the liquid crystal display device can successively display red, green, and blue three primary colors at different times to enhance display resolution of the liquid crystal display device. Further, since the electrochromic device has better reflectivity and contrast, the image display effect can be enhanced.

Integrated Liquid crystal display device and electrochromic device and driving method for displaying images

A digital to analog converter includes N lines of transistors. A number of each rear line of transistors is equal to a half of a number of each adjacent front line of transistors. Each transistor includes a conducting terminal, an input terminal, and an output terminal. In any two adjacent lines of transistors, input terminals of the first transistors and input terminals of the second transistors of the rear line are connected to output terminals of the first transistors of a front line respectively. Output terminals of the second transistors of the front line are connected to output terminals of the first transistors of the front line. Output terminals of the second transistors of the rear line of transistors are connected to output terminals of the first transistor of the rear line of transistors. Conducting terminals of each line of transistors are connected to each other.

Digital to analog converter and display panel having digital to analog converter

The present invention provides a liquid crystal display device, in which a test point (TP) is constructed as a triangular structure with a grounding line (L) arranged opposite to and facing an apex of the triangular structure, such that when static electricity is applied to the test point (TP), the static electricity is discharged, through tip discharging, from the apex of the test point (TP) to the grounding line (L) to be released through the grounding line (L) to the ground, whereby the capability of the liquid crystal display device resisting damage caused by static electricity is enhanced and compared to the prior art, no additional component is needed and the transmission of signals is not affected, thereby helping reduce cost and improve stability of the liquid crystal display panel.

Liquid crystal display device

The present invention provides a drive method and a drive device of a liquid crystal display, and the drive method comprises: receiving an image to display; implementing block detection to the image pixels of the image to display to determine dimensions of color blocks where the image pixels are; respectively setting block weights for the respective image pixels according to the dimensions of the color blocks; implementing the color washout compensation to the image to display according to the block weight; driving the liquid crystal panel to show the image to display after the color washout compensation. With the aforesaid arrangement, the present invention can reduce the color washout under large view angle to promote the display effect of the large view angle.

In the technical field of display, a source driver circuit and a display device according to the present disclosure, which can effectively reduce the heat generating efficiency of a gamma driver circuit cooperating with the source driver circuit, lower the temperature of the gamma driver circuit, and facilitate the integration of the gamma driver circuit with other driver circuits, are provided. The source driver circuit is in connection with several pixel gray scale reference voltages from the gamma driver circuit, and comprises several operational amplifiers, the number of which equals to that of the pixel gray scale reference voltages outputted from the gamma driver circuit, and the operational amplifiers each are connected with a corresponding pixel gray scale reference voltage.

Growing community of inventors

Guangdong, China

Jiang Zhu