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

Wuhan China Star Optoelectronics Technology Co., Ltd.

Osram Gmbh

Dan Lin

Yan Li

Quan Zhang

Qibing Dai

Minlun Liu

Weinan Yan

Yaping Liu

XiHe Zhuang

Zeke Wei

A touch display device is provided and includes a substrate, light emitting layer, encapsulation layer, a touch layer, and a touch driver inspection circuit. The touch layer includes a plurality of touch electrode units. The touch driver inspection circuit is connected to each of the touch electrode units the touch layer and is configured to monitor a touch position according to variation of a capacitance of the touch electrode units. The touch driver inspection circuit is further configured to monitor a pressure of the touch position according to variation of pressures on the touch electrode units.

Touch display device

The present application provides a touch panel and a display device. The touch panel includes: a substrate, a touch electrode, and a light-shielding layer provided corresponding to the touch electrode. The light-shielding layer is used to shield light reflected by the touch electrode. The display device using the touch panel can reduce ambient light reflected by the touch electrode. While ensuring that the display device realizes a touch control function, contrast and color saturation of the display device are not affected, and confidentiality of private information under wide viewing angles is ensured.

Touch panel and display device

A display panel and a testing method thereof, the display panel including a product region and a cutting region, and the product region including a display sub-region and a non-display sub-region. The display panel includes a flexible substrate, a thin film transistor layer, an organic light-emitting layer, a encapsulation layer, and a touch layer. The touch layer includes touch electrodes and touch leads. An end of each of the touch leads is connected to a corresponding touch electrode, the other end of each of the touch leads extends from the non-display sub-region to the cutting region, and a density of the touch leads in the cutting region is less than a density of the touch leads in the non-display sub-region.

Display panel and testing method thereof

The present disclosure relates to an driving method of an active matrix organic light-emitting diode (AMOLED) display panel, including: calculating a first proportion group and a second proportion group corresponding to each of color channels in display images of the AMOLED display panel at the first moment and the second moment, determining whether the first proportion group and the second proportion group are the same, calculating a theoretical current value corresponding to a target color channel to maintain a predetermined display brightness, obtaining an actual current value transmitted by the current detector, comparing the actual current value with the theoretical current value by the comparator, obtaining a target driving voltage value corresponding to a target proportion in the second proportion group when the actual current value is greater than the theoretical current value, adjusting a driving voltage provided by the PMIC power supply to the target drive voltage.

Driving method of active matrix organic light-emitting diode (AMOLED) display panel and display device

A touch display panel and an electronic device are provided. The touch display panel comprises a display panel comprising a display area and a non-display area, a touch layer arranged on the display panel and in the display area, a functional multiplexing chip configured to drive the display panel to display and to drive the touch layer for touch sensing, a flexible printed circuit (FPC), connected to the non-display area of the display panel, and a memory chip configured to store information arranged on the FPC and electrically connected to the functional multiplexing chip.

Touch display panel with reduced number of chips and electronic device including the same

The present disclosure provides a touch panel structure and a flexible touch display device. The touch panel structure includes a plurality of first touch electrode chains and a plurality of second touch electrode chains insulated from and in cross-connection with the first touch electrode chains; each of the first touch electrode chains includes a plurality of spaced-apart first touch electrodes, and the adjacent two of the first touch electrodes are electrically connected through the first connecting portion, the first connecting portion includes at least two conductive bridges; two adjacent second touch electrodes are electrically connected through a second connecting portion, and the first connecting portion is stacked on the second connecting portion and insulated from the second connecting portion. The touch panel structure can not only increase the contact area between the first connection portion and the corresponding touch electrode but also reduce the contact resistance.

Touch panel structure and flexible touch display device

A touch device and a touch method of a flexible OLED display apparatus are provided. The touch method includes: acquiring a variation value of a cathode voltage when the display mode is switched; comparing the variation value of the cathode voltage with a preset threshold value, and when the variation value of the cathode voltage exceeds the preset threshold value, increasing the emitter electrode voltage of the touch electrode layer in the Flexible OLED display apparatus. When the cathode voltage changes due to the display mode switching, if the variation value thereof exceeds the preset threshold value, the voltage output amplitude of the emitter electrode is increased, so as to keep the amount of variation of the electric quantity of the receiver electrode constant, thereby keeping the electric quantity of the node capacitance between the emitter and receiver electrodes constant and enhancing the consistency of touch performance.

Method to mitigate coupling capacitance between touch sensing emitter and display cathode of a flexible OLED display apparatus, and touch device therefor

An OLED touch display panel and a driving method are provided. The OLED touch display panel includes a cathode layer. The cathode layer is divided into the two sub-cathodes separated from each other and also serving as touch electrodes. In a pixel circuit of the OLED touch display panel, under common operations of a first input terminal and a second input terminal fed with different voltages, the OLED touch display panel normally emits light or does not emit light.

OLED touch display panel having cathode of OLED circuit also serving as touch electrodes and driving method thereof

The present disclosure discloses an electrostatic discharge structure of a LCD panel for mounting on a LCD panel with a high-resistance film, wherein the LCD panel includes a glass layer on an uppermost layer of the LCD panel covered with a high-resistance film, an edge reserved around the high-resistance film, and a conductive material layer arranged on the edge reserved on the glass panel, wherein the conductive material layer is in contact with a periphery of the high-resistance film, and the conductive material layer is connected to a GND pin of the TFT substrate through a conductive silver paste. The present disclosure also discloses a LCD panel and a LCD device. According to the embodiments of the present disclosure which can speed up the discharge of static electricity and greatly improve the static electricity generated by the tearing film and the coating film.

Electrostatic discharge structure of liquid crystal display panel, liquid crystal display panel and liquid crystal display device

A dimmer circuit may include: a rectification module, a control module and an output module, wherein the control module receives an input signal rectified through the rectification module and controls the output module to supply a load with an output signal in accordance with the input signal, and a compensation module which collects sampled signals characterizing dimming state of the dimmer circuit between the control module and the output module, and supplies the control module with a compensation signal in accordance with the sampled signals, the control module changing the value of the output signal according to the input signal and the compensation signal.

Growing community of inventors

Hubei, China

Dan Lin