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

Other

Wuhan China Star Optoelectronics Technology Co., Ltd.

Qibing Dai

Dan Lin

Minlun Liu

Yalong Ma

Yichao Deng

Jian Ye

Bi Chen

Weinan Yan

Zengjian Jin

Tengfei Ge

Fuchih Chang

A display module is provided. In the display module, a touch unit is disposed in a first display region, and the touch unit includes first touch electrodes and second touch electrodes arranged on a same layer and independently from each other; a fingerprint recognition touch unit is disposed in a second display region. The fingerprint recognition touch unit includes first recognition electrodes and second recognition electrodes arranged on a same layer and independently from each other, the first recognition electrodes and the second recognition electrodes are arranged to cross each other, and the first recognition electrodes and the first touch electrodes are arranged in different layers.

Display panel

The present application provides a display module, a driving method thereof, and a display device. The display module comprises: a display panel comprising at least two display areas; a detection module configured to detect a fold state of the display panel; and a driving chip module comprising one-to-one correspondence with the display area and drive its display drive chip; a gating module configured to control connection or disconnection of a line where the gating module is located; a control platform configured to output control instructions. Alleviate the problem of excessive power consumption in existing folding display devices.

Display module, driving method thereof and display device

The present disclosure provides a display screen and a display device, including a display panel, a touch control layer, a first driving chip, and a second driving chip. The touch control layer includes a first recognition device configured to generate fingerprint data and a second recognition device configured to generate touch control data. The first driving chip is configured to make a fingerprint identification of a first recognition area according to the fingerprint data, and the second driving chip is configured to make a touch control recognition of the first recognition area and a second recognition area according to the fingerprint data and the touch control data.

Display screen and display device

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

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

Disclosed is a touch electrode and a touch display device. The touch electrode comprises a plurality of first electrode chains and second electrode chains intersecting with the first electrode chains. Each of the first electrode chains comprises a plurality of first electrodes and a first connecting portion. Each of the second electrode chains comprises a plurality of second electrodes and a second connecting portion. Each of the second connecting portions comprises a connecting island located between the two adjacent second electrodes, at least one first connecting bridge electrically connecting the connecting island and one of the two adjacent second electrodes and at least one second connecting bridge electrically connecting the connecting island and the other of the two adjacent second electrodes. By means of the present invention, the length of the connecting bridge can be reduced and the breaking of the connection can be prevented.

Touch electrode and touch display device

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

The present disclosure provides a display panel and a display device, wherein the display panel includes at least one of the plates of the storage capacitor provided with a charging element. By providing the charging element, charging the storage capacitor when the storage capacitor is discharged, so that the charge of the storage capacitor tends to stable or keep stable. That is, the voltage supplied from the storage capacitor to the driving transistor is ensured to constant, so that the luminance of the pixel is not distorted.

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

The present disclosure provides a touch substrate and a display device. Shapes of the inside of electrode patterns are formed to be in consistency with shapes of the outer peripheries of the electrode patterns, therefore difference of light reflectance between the trenches surrounding the electrode patterns and the inside of the electrode patterns is reduced. Accordingly, the likelihood that the electrode patterns are visually noticeable is lowered, thus raising the visual effects displayed by the display devices.

Touch substrate and 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

A metal mesh touching sensing electrode assembly includes a metal mesh, first electrode columns, and second electrode rows. The first electrode columns are disposed on the metal mesh. Each first electrode column includes first electrode units which are mutually connected. Each of the first electrode units includes a first outer frame, first connection patterns, and first boundary patterns. The first connection patterns include a first T-shaped portion and a first linear portion. Each second electrode row includes second electrode units which are mutually connected with each other. Each second electrode unit includes a second outer frame, second connection patterns, and second boundary patterns. Each second connection pattern includes a second T-shaped portion and a second linear portion. The first electrode units and second electrode units of the metal mesh touching sensing electrode assembly have complicated patterns to prevent a visibility issue of an unexpected visual strip effect.

Metal mesh touching sensing electrode assembly

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.

Growing community of inventors

Hubei, China

Qibing Dai