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

Shenzhen China Star Optoelectronics Technology Co., Ltd.

Wuhan China Star Optoelectronics Technology Co., Ltd.

Taijiun Hwang

Pengfei Liang

Zhenling Wang

Limin Wang

Yuchao Zeng

Jihshiang Lee

Jing Xu

Bo Yang

Yuanchun Wu

Xiaoning Zhang

Jianhang Fu

Wei Dou

Letao Zhang

Pingsheng Kuo

Fan Tian

Jianguo Fu

Zhentao Tu

Zhihu Liang

Hengjie Wang

A mobility detection method and apparatus, and a computer device are disclosed. The method includes: using a predetermined consecutive picture frames as an adjustment group, and setting a detection frame and an adjustment frame; extending a frame idle time of the detection frame, so that the frame idle time of the detection frame is correspondingly reduced; and performing mobility detection during the frame idle time of the detection frame. In this way, the current problem that the frame idle time does not satisfy the time required for the mobility detection when the frame rate is excessively high is resolved.

Mobility detection method and apparatus, computer device

Provided are a display panel and a method for preparing same and a display device. The preparation method includes: forming a step-shaped opening on a pixel define film using a patterning process; forming an organic photoresist in the opening; performing fluorinated plasma treatment on the pixel define film outside the opening such that the pixel define film outside the opening forms a first pixel define layer having a hydrophilic surface layer, and the remaining pixel define film forms a hydrophobic second pixel define layer; and removing the organic photoresist in the opening.

Display panel and method for preparing same and display device

The present disclosure discloses a pixel circuit and an external compensation method thereof. The external compensation method detects real-time source potentials of a driving transistor through n iterations, a single iterative detection time that can be set artificially to limit a time for each iteration to detect a real-time source potential of the driving transistor, until the real-time source potential of the driving transistor is equal to a target source potential, thereby improving threshold voltage detection efficiency of the driving transistor.

Pixel circuit and external compensation method

A data processing method of a driving circuit and a driving circuit are provided. Wherein, the data processing method of the driving circuit can include obtaining a timing parameter, performing data processing based on the timing parameter and obtaining a first processing result, decoding the first processing result according to a preset reference voltage and obtaining a second processing result, and amplifying the second processing result, and outputting an amplified second processing result.

Data processing method of driving circuit and driving circuit

A compensation method disclosed in this application comprises following steps of: obtaining a display image and determining whether the display image is a still image; if the display image is a still image, preprocessing the still image to reduce power consumption of the display image, thereby obtaining a target display image after preprocessing; detecting the target display image to obtain a threshold voltage data and a mobility parameter; and compensating the display image according to the threshold voltage data and the mobility parameter.

Display image compensation method, device, electronic equipment, and storage medium

In the pixel driving circuit, a cathode of a light-emitting device is connected to an output terminal of a driving module; during a first detection period, an anode of the light-emitting device is connected to a low electrical potential power signal; during a second detection period and a display period, the anode of the light-emitting device is connected to a high electrical potential power signal; and in a light-emitting phase of the display period, voltage values of the output terminals of the driving module are all within a preset range in the pixel driving circuit corresponding to different sub-pixels.

Pixel driving circuit and display panel configured to detect first and second threshold voltages of a driving module

The present application provides a display device and a driving method of the display device. A pixel circuit controls a light-emitting duration of a light-emitting element according to a pulse width modulation scan signal, a pulse width modulation data signal, and a pulse width modulation control signal, and controls an amount of a driving current of the light-emitting element according to a pulse amplitude modulation scan signal and a pulse amplitude modulation data signal.

Display device and driving method thereof

A display panel driving method is provided and has dividing all scan lines into two scan line sets, in a displaying time of each frame sequentially scanning a first scan line set and a second scan line set, and simultaneously applying data signals of opposite polarities to pixel units connected to the first scan line set and pixel units connected to the second scan line set.

Display panel driving method

An AMOLED display device and driving method thereof is provided. In the AMOLED display device, the anode layer on the pixel area comprises a first anode and a second anode formed around and separated from the first anode, the first sub OLED is composed of the first anode, the OLED functional layer and the cathode on the first anode, and the second sub OLED is composed of the second anode, the OLED functional layer and the cathode on the second anode; for each pixel area, a pixel driving circuit is formed correspondingly; the pixel driving circuit is coupled to the first and the second anode; when operated, the pixel driving circuit sends the first current and the second current different from the first current to the first anode and the second anode so that the luminance strength of the first sub OLED and the second sub OLED is the same.

Amoled display device and driving method thereof

A method and a device for driving an organic light emitting diode display device are provided. The method includes acquiring an equivalent voltage of pixels between a cathode and an input of a negative voltage of a power source according to a video signal; calculating a current voltage of a gate of a driving thin film transistor in a light emitting stage according to the equivalent voltage; and controlling a voltage value of a positive voltage of the power source according to the current voltage of the gate of the driving thin film transistor, so as to reduce power consumption of the organic light emitting diode display device.

Method and device for driving organic light emitting diode display device that includes acquiring each current flowing through each organic light emitting diode according to a video signal

The present invention provides a brightness compensation system and a brightness compensating method of an OLED display device, which comprises: an image pre-processing unit, an image-contrast control unit electrically connected to the image pre-processing unit, an aging compensation unit electrically connected to the image-contrast control unit, an aging-parameter detection unit electrically connecting the aging compensation unit and the image-contrast control unit, and an OLED display panel electrically connected to the aging compensation unit and the aging-parameter detection unit; which can prevent the brightness of the OLED display device from being degraded by the aging of the OLED display device, to ensure the display quality of the OLED display device, and to enhance the user experience and the product competitiveness.

Brightness compensation system and brightness compensating method of OLED display device

Provided is a compensation method of a cathode voltage drop of an OLED display device and a pixel driving circuit. The first pixel driving circuits having function of detecting the cathode voltage are arranged in a portion of sub pixels of the OLED display device and uses the first pixel driving circuits to detect the cathode voltages of these sub pixels. The cathode voltages inputted to all the sub pixels of the OLED display device are obtained by interpolation according to the detected cathode voltages of these detecting sub pixels. Then, the cathode voltage compensation look up table is obtained according to the cathode voltages of all the sub pixels of the OLED display device. Finally, the data signal voltage is compensated with the cathode voltage compensation look up table. The data signal voltage after compensation is used to drive the OLED display device to perform image display.

Compensation method of cathode voltage drop of organic light emitting diode display device and pixel driving circuit

The present invention provides a compensation system and a compensation method for AMOLED display. In the system, the initial grayscale data is inputted into the grayscale data converting unit, the initial grayscale data is converted into the initial driving voltage data corresponding to the initial grayscale data by the grayscale data converting unit, and the initial grayscale data is transmitted to the compensation unit; the compensation unit compensates the initial driving voltage data by using the compensation ratio coefficient and the compensation voltage data in the compensation data storage unit and outputs the compensation driving voltage data to the voltage data conversion unit; the voltage data conversion unit then converts the compensation driving voltage data into the compensation grayscale data and outputs the compensation grayscale data to the source driver of the AMOLED display to uniformly compensate the AMOLED display by compensating the initial driving voltage data, which is capable of reducing the required data amount of compensation.

Compensation system and compensation method for AMOLED

The present invention provides a transparent dual-sided display device and a driving method thereof. The transparent dual-sided display device includes a display panel including a plurality of sub-pixel groups that each include a front-side OLED sub-pixel, a back-side OLED sub-pixel, and an electrowetting sub-pixel and a plurality of multiplexer modules that each include three thin-film transistors and a timing controller is involved to control a multiplexer module and a source driver, wherein the source driver writes the front-side and back-side output data signals to the front-side OLED sub-pixel and the back-side OLED sub-pixel respectively and applies a reference voltage to the electrowetting sub-pixel, such that controlling can be, through the timing controller, a voltage controller to output a voltage value of the reference voltage to the source driver to control transparency or light-blocking of the electrowetting sub-pixel for simultaneously fulfilling transparent displaying and dual-sided displaying.

Transparent dual-sided display device and driving method thereof

Provided is a drive compensation circuit including a first register unit, a second register unit, a selection unit, a voltage level shifter, a digital-to-analog conversion unit, and an amplification unit. The first register unit and the second register unit are respectively connected to the selection unit. The selection unit, the voltage level shifter, the digital-to-analog conversion unit, and the amplification unit are connected in sequence.

Growing community of inventors

Shenzhen, China

Taijiun Hwang