Hkc Corporation Limited

Mianyang Hkc Optoelectronics Technology Co., Ltd.

Shenzhen China Star Optoelectronics Technology Co., Ltd.

Xiufeng Zhou

Xin Yuan

Haijiang Yuan

Rongrong Li

Chen Chen

Lidan Ye

Zhi Yang

Ting Zhou

Yangling Tang

Qin Liang

Zhiwei Ye

Zhisheng Xie

A display panel includes a driving substrate, a conductive enclosure structure arranged on the driving substrate and including an insulation layer and a plurality of first metal layers, and a touch control electrode layer arranged on a side of the conductive enclosure structure away from the driving substrate. The insulation layer and the plurality of first metal layers are stacked in sequence along a direction away from the driving substrate. The plurality of first metal layers are arranged on a same plane at intervals. The touch control electrode layer includes a plurality of first touch control electrodes. The plurality of first touch control electrodes extend to the plurality of first metal layers, and adjacent electrodes of the plurality of first touch control electrodes are bridged through the corresponding one of the plurality of first metal layers. A display device is also provided.

Display panel and display with conductive enclosure structure to connect touch electrodes

The present disclosure relates to a display panel and a display device. The display panel comprises a thin film transistor and a plurality of voltage drain drain signal lines, the thin film transistor comprises a bottom gate and a top gate opposite to each other, the voltage drain drain signal lines are arranged on the same layer as a source electrode and a drain electrode, the display panel further comprises a plurality of voltage dividing wires arranged on the same layer as the bottom gate, the plurality of voltage dividing wires and the plurality of voltage drain drain signal lines intersect with one another to be in grid-shaped distribution, and at least part of intersecting positions of the voltage dividing wires and the voltage drain drain signal lines are electrically connected through via holes.

Display panel and display device

The present application relates to the technical field of display panels, and provides an array substrate and a method for preparing the same, and a display panel. The array substrate includes a base substrate, a buffer layer, an active layer, a gate insulation layer, a first gate, an interlayer insulation layer, a source and a drain that are laminated. The active layer includes the first active layer and the two second active layers, and the first active layer forms the channel region.

Array substrate with overlapping active layers having channel width greater than gate width, method for preparing the same, and display panel

A display panel includes: a plurality of sub-pixel driving circuits each of which is electrically connected to at least one scan line; a plurality of anti-view pixel driving circuits. The anti-view pixel driving circuit includes an anti-view light-emitting part and an anti-view switch tube for controlling an on and off of the anti-view light-emitting part; and the anti-view pixel driving circuits are respectively connected to the sub-pixel driving circuits such that a control end of the anti-view switch tube of the anti-view pixel driving circuit shares the scan line with the corresponding sub-pixel driving circuit. Scanning signals are input to the scan lines of at least two sub-pixel driving circuits at different times during a line scanning process, such that the scanning signals are input to the control ends of the anti-view switch tubes of at least two anti-view pixel driving circuits at different times.

Display panel and display device with anti-view pixel driving circuits connected to sub-pixel

A display driving method for driving a display panel, the display driving method includes acquiring a display mode of the display panel, the display mode including an anti-view mode and a wide viewing angle mode; and controlling a control line to output a control signal to turn on anti-view sub-pixels when the display mode of the display panel is determined as the anti-view mode; and controlling a first power branch line and a second power branch line to output signals with opposite waveforms when the display mode of the display panel is determined as a flashing anti-view mode.

Display panel, display driving method and display device

The present application relates to an array substrate and a preparation method thereof, and a display device; wherein the array substrate comprises a substrate and a plurality of sub-pixels distributed in an array on the substrate, the sub-pixels comprising M oxide thin film transistors, each oxide thin film transistor comprising a modulation electrode, a gate electrode, a source electrode and a drain electrode arranged in a stack, wherein the modulation electrodes of the M oxide thin film transistors are electrically connected to each other as a modulation layer, and the modulation layer is electrically connected to the gate electrode through N first vias, wherein M and N are both integers, and N<M.

Array substrate and preparation method thereof and display device

The present disclosure provides a display driving circuit and a display device. The display driving circuit includes multiple pixel circuits. A data end of each pixel circuit is connected to a data line, configured to provide a data signal; a gate end of each pixel circuit is connected to a gate line, configured to provide a gate signal; and a power supply end of each pixel circuit is connected to a same power supply common line. The multiple pixel circuits are divided into at least one first pixel circuit and at least one second pixel circuit, and a luminous efficiency of the first pixel circuit is less than that of the second pixel circuit; a width-to-length ratio of a channel of a thin-film field-effect transistor in a driving module of the first pixel circuit is greater than that of the second pixel circuit.

Display driving circuit and display device

A pixel drive circuit, which includes a data input circuit, a reset compensation circuit, a first switch circuit, a second switch circuit, a third switch circuit, an energy storage circuit and a light-emitting control circuit. The data input circuit is in electrical connection with a control end of the light-emitting control circuit via the energy storage circuit. The reset compensation circuit is in electrical connection with an output of the light-emitting control circuit. The first switch circuit is connected between an output of the data input circuit and an output of the reset compensation circuit. The second switch circuit is connected between an input of the light-emitting control circuit and a first power supply. The third switching circuit is connected between the control end and the input of the light-emitting control circuit. The output of the light-emitting control circuit is in electrical connection with a second power supply.

Pixel drive circuit, method for timing control, and display panel

A pixel driving circuit, a method for driving a display panel, and a display device are provided. The display panel includes pixel columns, each of the pixel columns includes pixel components. The pixel driving circuit includes pixel driving modules, a data line, first gating units, and second gating units. Each of the pixel driving modules is coupled to pixel components of adjacent two pixel columns of the pixel columns, any pixel component in each of the pixel columns is written in a driving voltage via a corresponding driving switch. A terminal of each of the first gating units and a terminal of each of the second gating units are respectively coupled to the data line, another terminal of each of the first gating units is coupled to a corresponding adjacent pixel component, another terminal of each of the second gating units is coupled to another corresponding adjacent pixel component.

Pixel driving circuit of a display panel, method for driving a display panel, and display device

A pixel drive circuit, in which a second voltage-stabilization circuitry is configured that assists in maintaining the potential of the control end of the drive transistor during a transition from a compensation-and-writing phase to the light-emitting phase and in a light-emitting phase. During the transition from the compensation phase to the light-emitting phase, due to a decrease of the voltage output from the first voltage-stabilization circuitry, the node voltage between the first and second voltage-stabilization circuitries will be pulled down first. By providing the second voltage-stabilization circuitry, an influence on the node voltage at the control end of the drive transistor caused due to the voltage variation at the nodes between the two circuitries will be greatly reduced, the leakage current of the two circuitries connected in series is smaller than the leakage current of the one single first voltage-stabilization circuitry in the light-emitting phase.

Pixel drive circuit, display panel, and display device

A pixel drive circuit, a display panel and a display device. In the pixel drive circuit, a voltage-stabilization transistor is arranged, and the voltage-stabilization transistor is provided with two control ends, each of the two control ends forms a voltage-stabilization capacitor with the active layer, thereby a new capacitor is added on the basis of the original parasitic capacitor. The new capacitor has a relatively large capacitance value. The potential variation at the control end of the drive transistor depends on the parasitic capacitor of the drive transistor, the storage capacitor at the control end of the drive transistor, and the capacitance value of the new capacitor, when the capacitive coupling effect occurs, the voltage at the control end of the drive transistor can be jointly maintained by the above three capacitors, thereby improving the effect of voltage stabilization.

A light-emitting drive circuit, which includes cascaded N light-emitting drive sub-circuits, and an n-th light-emitting drive sub-circuit, includes: a first pull-up control sub-circuit configured to pull up a potential of a first node to a first potential in a trigger phase; a first pull-down control sub-circuit configured to pull down the potential of the first node to a second potential in an output phase and pull up the potential of the first node to a third potential in a reset phase; a pull-up sub-circuit configured to pull up an n-th stage light-emitting drive signal to a high potential; a second pull-down control sub-circuit configured to pull up a potential of a second node to a fourth potential in the output phase; and a pull-down sub-circuit configured to pull down the n-th stage light-emitting drive signal to a low potential.

Light-emitting drive circuit, method for timing control, and display panel

A pixel drive circuit includes: a driving compensation circuitry, a data-writing circuitry, and a flip-elimination circuitry. By configuring the flip-elimination circuitry, the reference voltage can be written to the control end of the drive transistor through the independent circuit line in the compensation phase, thereby it is unnecessary to write the reference voltage through the data-voltage line before each writing of the data voltage. In the writing phase of the data voltage, the entire time of each writing can be used for the writing of data voltage without reserving half of the time for writing the reference voltage, so that the level switch frequency of the data line does not need to reach twice the normal light-emitting frequency, which reduces the burden on the display panel, greatly reduces the power consumption of the screen, and improves product competitiveness.

A pixel driving circuit, a display panel, and a display device. The pixel driving circuit includes a driving transistor, a data-writing sub-circuit; and a voltage stabilization sub-circuit. The voltage stabilization sub-circuit is coupled to a first control terminal of the driving transistor and is configured to keep a voltage at the first control terminal of the driving transistor to be stable in a reset stage. The voltage at the first control terminal of the driving transistor is kept stable through the voltage stabilization sub-circuit in the reset stage, so that the voltage at the output of the driving transistor is relatively constant, characteristics of a switching element of the driving transistor is ensured, an effect of homogeneous luminance is realized, and a display effect and a stability of displaying of the display panel are improved.

Pixel driving circuit having a voltage stabilization sub-circuit and display panel thereof

A pixel drive circuit, a display panel and a display device. The pixel drive circuit includes a drive transistor, a first compensation capacitor, and a second compensation capacitor. The drive transistor has a first control end, a second control end, an output end, and an input end. The drive transistor is configured as a four-terminal drive device having two control ends, and between each control end and the output end, a compensation element is arranged, so that the compensations to the threshold voltage of the front and rear channels are performed simultaneously when the drive transistor is driven. Meanwhile, each control end is equipped with a capacitor to eliminate the influence of a current difference caused by the threshold voltage of the secondary channel in the 4-terminal device.

Growing community of inventors

Shenzhen, China

Xiufeng Zhou