Wuhan China Star Optoelectronics Technology Co., Ltd.

Shenzhen China Star Optoelectronics Technology Co., Ltd.

Shenzhen Royole Technologies Co., Ltd.

Xingling Guo

Xiaoping Tan

Jiehui Qin

Man Li

Jinjie Zhou

Zhenzhou Xing

Chun-hung Huang

Yujie Bai

Taisheng An

Wei Feng Chen

Xiang Yang

Qingcheng Zuo

Bin Xiong

Chunpeng Guo

A display panel and an image data compensation method thereof are provided. The display panel includes a first data driving module and a second data driving module. The first data driving module is configured to provide image data signals for a first display area and perform De-Mura compensation. The second data driving module is configured to provide image data signals for a second display area and perform De-Mura compensation. The first data driving module is configured to obtain image data of the second display area after De-Mura compensation, and adjust image data of a first compensation area adjacent to the second display area in the first display area. The second data driving module is configured to obtain image data of the first display area after De-Mura compensation, and adjust image data of a second compensation area adjacent to the first display area in the second display area.

Display panel and image data compensation method thereof

A method for rendering pixel, an apparatus for rendering pixel, and a display device are disclosed. The method includes steps of obtaining gray-scale values of three primary colors of an original image pixel in an RGB color space, converting the gray-scale values of three primary colors of the original image pixel into gray-scale values of three primary colors and a compensating component of a compensating image pixel, sampling from a compensating image, and setting the gray-scale values of the three primary colors and the compensating component of two adjacent compensating image pixels in each row as gray-scale values of corresponding sub pixels of a screen pixel in each row.

Method for rendering pixel, apparatus for rendering pixel, and display device

The present disclosure relates to a driving system of display panels. The driving system includes a main board and a display panel. The main board is configured with a driving chip, and the driving chip electrically connects to the display panel via a flexible circuit board to drive the display panel to display. With such configuration, the driving system is configured with the main board and the driving chip, and the driving chip is arranged on the main board, instead of the flexible circuit board. With such configuration, the space of the display area occupied by the components is reduced so as to realize the narrow border design for a top border and a bottom border of the display panel. In this way, the screen ratio of the display panel is increased.

Driving systems of display panels

The present disclosure relates to a driving method and a driving device of display panels. The driving method includes: obtaining three-color sub-pixel data of each of pixels of a current image, obtaining a saturation value corresponding to each of the pixels in accordance with the three-color sub-pixel data of each of the pixels, obtaining a current background-white ratio in accordance with the three-color sub-pixel data and the saturation value of each of the pixels, determining whether the current background-white ratio is within a predetermined adjustment range, and reducing a white grayscale value of four-color sub-pixel data of the current image in accordance with the current background-white ratio and outputting the reduced white grayscale value to a display panel. In this way, the darker pure-color effect due to the high contrast may be reduced, which effectively enhances the darker pure-color issue of the RGBW display panel.

Driving methods and driving devices of display panels

The present disclosure relates to a driving method and a driving device of display panels. The driving method includes: dividing a saturation interval of an original image frame to be displayed by a display panel into a plurality of sub-saturation intervals; obtaining saturation values corresponding to each of the pixels in the original image frame; calculating numbers of pixels in the original image frame falling within each of the sub-saturation intervals in accordance with the saturation values corresponding to each of the pixels. In this way, the backlight brightness outputted by the backlight module may be adjusted in accordance with the saturation values of the original image frame so as to enhance the low brightness issue when a pure-color image is displayed by the display panel configured with RGBW sub-pixels.

The present disclosure relates to a driving method and a driving device of touch display panels, and a touch display. The driving method includes: detecting a voltage potential of at least one pixel electrode within the areas of the touch display panel corresponding to different touch scanning partitions, negating the voltage potential, overlapping the negated voltage potential and feed-backed touch pulse signals, and adopting overlapped signals to be the detected touch pulse signals. With the configuration of the touch scanning partitions, the voltage potentials of the pixel electrodes within each of the areas are adopted to respectively adjust the feed-backed touch pulse signals such that the display scanning and the touch scanning can be conducted simultaneously. The detection precision of the touch pulse signals may be enhanced without affecting the display performance.

Simultaneous display and touch scanning methods and devices of touch display panels

Disclosed is a method and a device for driving a liquid crystal display panel. The method comprises the following steps. A first pixel signal of an image to be displayed is converted to a second pixel signal. An adjusted gray scale of each of sub-pixels and/or an adjusted backlight brightness of a backlight is acquired based on the second pixel signal and the first pixel signal. Each of the sub-pixels in the liquid crystal display panel is driven so that each of the sub-pixels can have a corresponding adjusted gray scale, and/or, the backlight is activated so that the backlight can have the adjusted backlight brightness. With the driving device and the driving method, it is able to ensure that when the RGBW liquid crystal display panel displays a solid colored image, the brightness of the image will not be reduced.

Method and device for driving liquid crystal display panel

A touch driving circuit and a touch sensitive display panel are provided. The touch driving circuit is disposed on a corresponding touch sensitive display panel. The touch driving circuit includes a touch driving chip, driving signals encoders, driving lines, sensing lines, driving wires, and sensing wires. Preliminary touch driving signals herein include touch data signals and touch clock signals, and the driving signals encoders convert the touch data signals into the touch driving signals according to the touch clock signals.

Touch driving circuit and touch sensitive display panel

The present provides a drive method of a liquid crystal display device and a liquid crystal display device. By burning sets of OTP data corresponding to the use durations which are different in a drive chip, and each set of OTP data comprises a gamma datum and a Vcom datum, and the liquid crystal display device selects the OTP data corresponding to the use duration according to the present use duration, and uses the gamma datum and the Vcom datum in the set of OTP data to drive a display panel to perform image display for avoiding that the gamma value deviates from the target gamma value, and the Vcom deviates from the best Vcom to ensure that the liquid crystal display device always uses the target gamma value and the best Vcom for driving, and always guarantee the display result and quality of the panel.

Drive method of liquid crystal display device and liquid crystal display device

The present disclosure relates to a driving method and a driving device of display panels. The driving method includes: obtaining three-color sub-pixel data of each of pixels of a current image; obtaining a saturation value and a Chroma value corresponding to each of the pixels; determining if the saturation value corresponding to each of the pixels is within a predetermined range; obtaining a white-grayscale-added value in accordance with the Chroma value corresponding to the pixel, adopting the white-grayscale-added value as a white grayscale value of the four-color sub-pixel data corresponding to the pixel, and outputting the white grayscale value to the display panel upon determining the saturation value corresponding to the pixel is within the predetermined range. In this way, the brightness of the pure-color image displayed on the display panel may be enhanced, and there is no darker issue when the pure-color image is displayed.

The present invention provides a backlight module, a liquid crystal display device and a backlight adjustment method thereof; the backlight module comprises a light guide plate and a LED light bar located at an incident side of the light guide plate, and the LED light bar comprises a driving chip, LED lamps of at least two different color temperatures, which are alternately aligned, and the LED lamps of the same color temperature are coupled in series to construct a route, and each route is coupled to an adjustable resistance in series, and the routes constructed by the LED lamps after parallel connection are all coupled to the driving chip to construct a driving circuit, and the backlight module further comprises a control module, and the control module is coupled to the driving circuit.

Backlight module, liquid crystal display device and backlight adjustment method thereof

The disclosure provides a liquid crystal display driving circuit and a liquid crystal display device. The liquid crystal display driving circuit includes a content adaptive brightness control circuit and a Gamma voltage adjustment circuit, when the content adaptive brightness control circuit is turned on, the brightness of the backlight module is switched from first backlight brightness to second backlight brightness under the control of the content adaptive brightness control circuit, when the brightness of the backlight module is the first backlight brightness, the Gamma voltage adjustment circuit outputs a first Gamma voltage for adjusting grayscale brightness of the liquid crystal display to be first grayscale brightness, when the brightness of the backlight module is the second backlight brightness, the Gamma voltage adjustment circuit outputs a second Gamma voltage for adjusting the grayscale brightness of the liquid crystal display to be second grayscale brightness.

Liquid crystal display driving circuit and liquid crystal display device

The present invention provides a liquid crystal display device, comprising a backlight part, and the liquid crystal display device includes an image collection circuit, a gray scale judgment circuit, a PWM signal generation circuit and a LED driving circuit, and the backlight part is electrically coupled to the LED driving circuit; the image collection circuit obtains a gray scale of a target image and transmits the gray scale of the target image to the gray scale judgment circuit, and the gray scale judgment circuit compares the gray scale of the target image with a preset gray scale threshold to generate a control signal to be transmitted to the PWM signal generation circuit; the PWM signal generation circuit generates a PWM signal of which a duty ratio is zero to be transmitted to the LED driving circuit, and the LED driving circuit cuts off an input current of the backlight part.

Backlight adjustment method, liquid crystal display device and electronic apparatus

An in-cell type touch panel, a manufacturing method thereof and a LCD device are provided. The touch panel includes an array substrate including: a glass substrate, thin film transistors, a planarization layer overlying the thin film transistors, a connecting wire on the planarization layer, a first insulating layer overlying the connecting wire, a touch sensing electrode on the first insulating layer, a second insulating layer overlying the touch sensing electrode and a pixel electrode on the second insulating layer. The connecting wire is connected to the touch sensing electrode by a first via hole, and the pixel electrode is connected to one of the thin film transistors by a second via hole. The touch sensing electrode further is configured as a common electrode, and during a displaying time period of an image frame, the touch sensing electrode transmits a common voltage and a touch control signal in time division manner.

In-cell type touch panel and manufacturing method thereof, liquid crystal display device

The present application discloses a gamma voltage generating circuit, including an image detection module, a control module and a gamma voltage module; the image detection module is for acquiring an image input signal, and detecting the image input signal, when determining the gray scale indicated by the image input signal comprising a pure color gray scale, to generate and output a first detection result signal for indicating the pure color gray scale; the control module is electrically connected to the image detection module, for receiving the first detection result signal output from the image detection module and generating and outputting a first control signal in accordance with the first detection result signal; and the gamma voltage module is electrically connected to the control module to receive the first control signal output from the control module, and generate a gamma reference voltage in accordance with the first control signal.

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Guangdong, China

Xingling Guo