Shenzhen China Star Optoelectronics Technology Co., Ltd.

Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Yufeng Jin

Hao Li

Ming-Jong Jou

Shen-sian Syu

Jhenwei He

Ronggang Wang

Lin Li

Houliang Hu

Hongjun Xie

Shen Sian Syu

A display panel and a display are provided. The display panel includes a glass substrate, at least one driving chip and a flexible printed circuit, wherein the at least one driving chip is electrically connected to the flexible printed circuit. Both the at least one driving chip and the flexible printed circuit are arranged on the glass substrate together to reduce the thickness of the display.

Display panel and display

The invention provides an OLED panel temperature compensation system and method. The system comprises an OLED panel and a processing module connected to the OLED panel, the OLED panel is disposed with a temperature sensor layer of a plurality of temperature sensors on one side or inside; when performing temperature compensation, the temperature sensor detects the temperature of the location and transmits to the processing module, the processing module receives and processes the initial data signals of the plurality of sub-pixels to obtain the to-be-displayed brightness of the plurality of sub-pixels, and receives and processes the temperatures from the plurality of temperature sensors to obtain the temperatures of the plurality of sub-pixels, and generates and outputs compensation data signals corresponding to the plurality of sub-pixels according to the to-be-displayed brightness and temperature of the plurality of sub-pixels. The OLED panel is thus accurately and effectively compensated for temperature.

OLED panel temperature compensation system and OLED panel temperature compensation method

A pixel driving circuit, a driving method thereof and an OLED display panel are provided. A plurality of scanning lines and a plurality of data lines of the pixel driving circuit intersect to define a plurality of pixel units, the plurality of pixel units in each row are connected to a corresponding scanning line and a corresponding power line, the plurality of pixel units in each column are connected to a corresponding data line, in a scanning period, scanning signal is input to an end of the scanning line to drive the plurality of pixel units along a first direction, power driving signal is input to an end of the power line opposite to the end of the scanning line to which the scanning signal is input to drive the plurality of pixel units along a second direction, the first direction and the second direction are opposite.

Pixel driving circuit, driving method thereof and OLED display panel

Disclosed is a method for compensating a pixel driving circuit of an OLED display panel. In the compensation method, a driving transistor is enabled to operate stably in a saturation region for twice, and a threshold voltage of the driving transistor is calculated based on a collected charging voltage and charging time. A pixel driving circuit is compensated by establishing a threshold-voltage compensation table. The compensation method is easy to operate and can significantly improve a detecting speed of a threshold voltage. Moreover, an effect of a voltage-current conversion factor on detecting accuracy of a threshold voltage can be avoided.

Method for compensating pixel driving circuit of OLED display panel

Disclosed is a pixel arrangement of an OLED display panel and an OLED display panel. The pixel arrangement includes first sub-pixels and second sub-pixels that are arranged alternately along a row direction. Every other pair of first sub-pixel and second sub-pixel are provided therebetween with two third sub-pixels along the row direction. The first sub-pixels and the third sub-pixels are arranged alternately along a column direction to form a sub-pixel arrangement mode, and the second sub-pixels and the third sub-pixels are arranged alternately to form another sub-pixel arrangement mode. The two sub-pixel arrangement modes are arranged alternately. The pixel arrangement reduces difficulty in manufacturing an OLED display panel.

Pixel arrangement of OLED display panel, and OLED display panel

The present disclosure discloses an Organic Light Emitting Diode (OLED) display panel including pixel units arranged in a array, the pixel units arranged in a array divided into a plurality of same pixel blocks, and the pixel blocks including a first to a fourth column sub pixels which are arranged and combined to form a first to a third column pixel units; wherein the first column sub pixels are disposed in the first column pixel units, the second and the third column sub pixels are disposed in the second column pixel units, and the fourth column sub pixels are disposed in the third column pixel units; each pixel unit of the second column pixel units is provided with three color sub pixels; and each pixel unit of the first and the third column pixel units is only provided with one or two of three color sub pixels.

OLED display panel and display device with shared color sub pixels

Disclosed is a liquid crystal panel for 3D display, a driving method and a pixel optimization method thereof. The liquid crystal panel includes a display panel and an FPR film attached to a surface of the display panel. The FPR film is divided into first areas and second areas, the first areas and the second areas being arranged alternately in a direction parallel to lines of the sub-pixel units of the display panel, and each covering two lines of sub-pixel units. The liquid crystal panel can reduce the production cost of the 3D display device and improve the resolution.

Liquid crystal panel for 3D display, driving method and pixel optimization method thereof

The present invention provides a pixel arrangement structure, comprising a plurality of pixel units, and each pixel unit comprising a first sub pixel, a second sub pixel, a third sub pixel and a fourth sub pixel, and the fourth sub pixel being a triangle, and the first sub pixel, the second sub pixel and the third sub pixel being respectively arranged around the fourth sub pixel, and respectively sharing three sides with the fourth sub pixel. The pixel arrangement structure of the present invention adds the white sub pixel to promote the transmission rate of the panel, and to reduce the energy consumption of the display, and meanwhile to be beneficial for implementation of the sub pixel rendering algorithm to promote the virtual resolution.

Pixel arrangement structure

A method for adjusting contrast includes: acquiring a corresponding grey-scale image of a current image; dividing the grey-scale image to obtain a plurality of divided regions; calculating JND values corresponding to the divided regions based on an area of each of the divided regions; and calculating a target contrast based on the JND value of each of the divided regions and a background brightness of the current image; adjusting the contrast of the current image based on the target contrast and a predetermined condition.

Method and device for adjusting contrast

The invention provides driving methods for OLED display panel. One method uses an improved driving circuit: disposing a sensing line (S(a)) corresponding to two columns of pixels (P), the a-th sensing line (S(a)) synchronously detecting threshold voltages of the light-emitting sub-pixels of odd-numbered rows in (2a&#x2212;1)-th column pixels (P) and of even-numbered rows in 2a-th column pixels (P); or, the a-th sensing line (S(a)) synchronously detecting threshold voltages of the light-emitting sub-pixels of even-numbered rows in (2a&#x2212;1)-th column pixels (P) and of odd-numbered rows in 2a-th column pixels (P); to perform detection on half of the sub-pixels in OLED display panel, to reduce the number of sensing lines by half to save cost. Another method improves the driving signal timing sequence to reduce the number of detection times of the sensing lines by half with obtaining the threshold voltages of all the sub-pixels of the OLED display panel.

Driving method for OLED display panel

Disclosed is a method of RGBW compensation based on color aberrations of white subpixel and an apparatus thereof: when aberrations exist between a color coordinate point Ws of white subpixel and a standard white color coordinate point Wd under sRGB, analyzing color coordinates of every subpixel on the RGBW panel, and then dividing a triangle with vertices points Rs, Gs and Bs into three triangle regions based on Ws as the center point; based on ranges of the three triangle regions, a triangle region where Wd is located is confirmed; a first data is calibrated by performing compensating the white subpixel corresponding by the center point Ws via a predetermined normalized proportion through two subpixels corresponding to the other two points within the triangle region surrounding and locating Wd. Through the aforementioned manner, the present invention is capable of calibrating aberrations of white subpixels in order to normalize images of RGBW panels.

Method of RGBW compensation based on color aberrations of white subpixels and apparatus thereof

An RGB to RGBW brightness compensation method and device is disclosed. The method includes: retrieving multiple gray scale values of RGB color RGB(x, y, z), wherein x, y, z are gray scale levels of red, green and blue sub-pixels of an RGB model, 0&#x2264;x, y, z&#x2264;1; multiplying the gray scale values of RGB color RGB (x, y, z) by N to obtain an enhanced gray scale values of RGB color RGB (Nx, Ny, Nz), wherein N is 4/3 and a minimum value selected from x, y, z is taken to represent a first conversion value W1; and obtaining multiple gray scale values of RGBW color RGBW (Nx&#x2212;W1, Ny&#x2212;W1, Nz&#x2212;W1, W1) according to the enhanced gray scale values of RGB color RGB (Nx, Ny, Nz) and the first conversion value W1. Accordingly, a brightness of the RGBW model of a liquid crystal panel is compensated.

RGB to RGBW brightness compensation method and device

The invention discloses an offset method and equipment of a RGBW panel subpixel. The method includes: inputting data of pixels based on RGB color space in an image; determining the most similar pixels of each of the pixels in the image according to the data of the pixels based on RGB color space; when the resolution of pixels is the same, converting the data of the pixels based on RGB color space to data of the pixels based on RGBW color space, determining data based on RGBW color space corresponding to the most similar pixels of the pixels; three fourths subsampling the pixels in the image according to the data of the pixels based on RGBW color space, the data based on RGBW color space corresponding to the most similar pixels of each of the pixels; outputting data of pixels in the image after being sampled.

Offset method and equipment of RGBW panel subpixel

The present invention provides a 3D display system, which includes an OLED display panel and 3D shutter glasses. The OLED display panel includes a plurality of data lines for transmitting data signals, a plurality of scan lines for transmitting scan signals and a plurality of pixel units. When the pixel unit displays the left-eye image data signal and the right-eye image data signal, the left-eye shutter and the right-eye shutter of the 3D shutter glasses are both closed. When the pixel unit displays the left-eye blank data signal, the left-eye shutter of the 3D shutter glasses is open. When the pixel unit displays the right-eye blank data signal, the right-eye shutter of the 3D shutter glasses is open.

Three-dimensional display system

The present invention discloses a method of RGBW compensation based on color aberrations of white subpixel and an apparatus thereof: when aberrations exist between a color coordinate point Wof white subpixel and a standard white color coordinate point Wunder sRGB, analyzing color coordinates of every subpixel on the RGBW panel, and then dividing a triangle with vertices points R, Gand Binto three triangle regions based on Was the center point; based on ranges of the three triangle regions, a triangle region where Wis located is confirmed; a first data is calibrated by performing compensating the white subpixel corresponding by the center point Wvia a predetermined normalized proportion through two subpixels corresponding to the other two points within the triangle region surrounding and locating W. Through the aforementioned manner, the present invention is capable of calibrating aberrations of white subpixels in order to normalize images of RGBW panels.

Growing community of inventors

Shenzhen, China

Yufeng Jin