Hkc Corporation Limited

Shenzhen China Star Optoelectronics Technology Co., Ltd.

Chongqing Hkc Optoelectronics Technology Co., Ltd.

Chongqing Advance Display Technology Research

Technology Co., Ltd.

Chongqing Hkc Optoelectronics

Xiaoyu Huang

Wenxin Li

Dongsheng Guo

Mingfeng Deng

Jungmao Tsai

Chongwei Tang

Bingcheng Huang

Gege Peng

The present disclosure provides a display panel static electricity protection device (), a display panel static electricity protection method, and a display device (), including a detection circuit (), a discharge circuit (), and a discharge terminal (). The detection circuit () is connected with a driving chip () of a display panel. The discharge circuit () is connected with the detection circuit () and the driving chip (). The discharge terminal () is connected with the discharge circuit () and the detection circuit ().

Display panel static electricity protection device, display panel static electricity protection method, and display device

The present disclosure provides a display panel static electricity protection device (), static electricity protection method, and a display device (), including a detection sub-circuit (), a detection sub-circuit (), a discharge circuit () connected with the driving chip (), a current driving sub-circuit () connected with the detection sub-circuit (), the discharge circuit (), and a discharge terminal (), and the discharge terminal () connected with a grounding wire of the driving circuit board. The detection sub-circuit () detects static electricity, the current driving sub-circuit () inputs and detects current in the detection sub-circuit () to open or close the discharge circuit (). The static electricity is discharged to the discharge terminal () through the discharge circuit () and the current driving sub-circuit ().

Display panel static electricity protection device, static electricity protection method, and display device

This application relates to a printed circuit board, including: a plurality of bonding pad areas configured to be electrically connected to a display; a plurality of dummy pad areas located in the plurality of bonding pad areas and configured to be connected to the ground; and a contact pad area existing between the plurality of dummy pad areas and electrically connected to the bonding pad area. The contact pad area includes a plurality of contact pads configured to be electrically connected to an external input connector. A width of the plurality of contact pads is 0.3 mm, and a distance between the plurality of contact pads is 0.2 mm. A length of the contact pad is the same as a length of a bonding pad in the bonding pad area.

Printed circuit board and display connection structure

A display panel is provided. The display panel includes a display area, a driver transistor array substrate, a plurality of scanning lines and a control electrode driver chip. The driver transistor array substrate and the plurality of scanning lines are located on the display area; each of the scanning lines is connected to at least one driver transistor; the control electrode driver chip is connected to the scanning lines through output ports; the display area is divided into a first display area and a second display area according to one diagonal line of the driver transistor array substrate; the control electrode driver chip includes a plurality of amplifying circuits, each output port of the control electrode driver chip is for controlling at least one scanning line, and each output port with the number of controlled pixel greater than a first preset value is connected to the scanning line through one amplifying circuit.

Display device and display panel thereof

This application provides a measurement signal circuit and a measurement method thereof. The measurement signal circuit includes: a first switch, the first switch being electrically coupled to a first node, a second node and a third node; a second switch, a control end of the second switch being electrically coupled to the first node, a first end of the second switch being electrically coupled to a fourth node, and a second end of the second switch being electrically coupled to the third node; and a third switch, a control end of the third switch being electrically coupled to a fifth node, a first end of the third switch being electrically coupled to the third node, and a second end of the third switch being electrically coupled to a pad.

Measurement signal circuit and measurement method thereof

An overcurrent protection circuit and display drive device, comprising: when input current of a front end corresponding to a logic signal experiences overcurrent, preventing the input current of the front end experiencing overcurrent from being transmitted to a drive chip, thereby preventing damage to the drive chip.

Overcurrent protection circuit and display drive device

A driver circuit and a display panel. The driver circuit comprises a driver chip (), a detection signal generation circuit (), and a feedback circuit (). The detection signal generation circuit () is used for generating a detection control signal for performing aging detection according to the received first voltage signal and second voltage signal. The feedback circuit () is used for generating a feedback voltage and outputting same to the driver chip () according to the detection control signal and an working voltage, so that the driver chip () adjusts the outputted working voltage to a voltage required for performing the aging detection according to the feedback voltage, so as to satisfy the requirement for the diversity of voltage required for the voltage for the aging detection in the process of aging detection.

Drive circuit and display panel

This application relates to an electrostatic discharge (ESD) protection structure of a display panel, and a display apparatus. The ESD protection structure includes: a driving chip configured to send a driving signal; a plurality of signal lines arranged in a display area, where the display area is equally divided into a first signal line area and a second signal line area, each of the plurality of signal lines located in the first signal line area is coupled with a positive polarity switch, each of the plurality of signal lines located in the second signal line area is coupled with a negative polarity switch, and the positive polarity switch and the negative polarity switch are electrically connected to the driving chip; and ESD protection circuits, each including a forward diode and a backward diode.

Electrostatic discharge (ESD) protection structure and display panel

This application provides a drive circuitry for a display panel and a display device. The drive circuitry includes a drive circuit board, a power chip, a driving chip, a detection circuit, and a control circuit. The detection circuit detects a logic voltage at a logic signal receiving terminal and outputs a control signal. The power terminal of the driving chip is coupled to the power chip through the control circuit. The control circuit controls to turn on or turn off the coupling between the power chip and the driving chip according to the control signal.

Drive circuitry of display panel for detecting a logic voltage of a logic signal receiving terminal and controlling a power terminal of a driving chip to be connected to or disconnected from a power ouput terminal of a power chip depending on a magnitude of the logic signal and display device

The present application discloses a reference voltage generation system and method. The reference voltage generation system includes: a reference voltage generator; and a voltage division circuit coupled to the reference voltage generator. The reference voltage generator is coupled to a reference voltage through the voltage division circuit.

Reference voltage generation system and method

A drive circuit for a display apparatus includes: a switching module, including a first input end, a second input end, a control end, and an output end, where the first input end obtains a first signal, the second input end obtains a second signal, the output end is connected to a pixel electrode, the control end obtains a control signal, the switching module selectively outputs the first signal and the second signal to the output end according to a level change of the control signal; and a controller, connected to the control end, and including a first end and a second end, where the first end obtains a first input signal, the second end obtains a second input signal, and the controller outputs the first input signal according to a period change of the second input signal, to serve as the control signal.

Drive circuit and method for display apparatus

Disclosed is a backlight adjustment circuit including: a reference electrical information circuit, a feedback selection circuit, a main control circuit and at least two parallel light-emitting branches; where the reference electrical information circuit is connected to the main control circuit and is configured to provide reference electrical parameter information to the main control circuit; the feedback selection circuit is respectively connected to the main control circuit and the at least two light-emitting branches and is configured to provide the main control circuit with electrical information of each of the at least two light-emitting branches; and the main control circuit is connected to the at least two light-emitting branches and is configured to adjust a current magnitude of the each of the at least two light-emitting branches according to the reference electrical parameter information and the electrical information of the each of the at least two light-emitting branches.

Backlight adjustment circuit, backlight module and display device

This application discloses a charge sharing circuit and charge sharing method for a display panel and a display panel. The charge sharing circuit includes a controller () and n sets of sharing sub-circuits (), where each set of sharing sub-circuits () operates in response to a corresponding one of different polarity driving modes of pixel electrodes of the display panel, each set of sharing sub-circuits () includes a plurality of control elements (), in a set of sharing sub-circuits (), each of the data lines is connected to only one control element (), within the same period of time, the controller drives only one set of sharing sub-circuits to operate, and n&#x2265;1.

Charge sharing circuit and method for liquid crystal display panel to improve display effect

A drive circuit for adjusting a voltage required for aging detection using a feedback circuit comprises a drive chip (), a detection signal generation circuit (), and a feedback circuit (). The drive chip () is configured to output a working voltage. The detection signal generation circuit () is configured to generate a detection control signal for aging detection according to a received trigger signal. The feedback circuit () is configured to receive the detection control signal output by the detection signal generation circuit () and the working voltage provided by the drive chip () and to generate a feedback voltage according to the detection control signal and the working voltage and output the feedback voltage to the drive chip (), such that the drive chip () adjusts, according to the feedback voltage, the working voltage to a voltage required for aging detection. A display panel is also provided.

Drive circuit for adjusting a voltage required for aging detection using a feedback circuit, and display panel

Disclosed is a driving circuit of display panel. The driving circuit of display panel includes a pixel unit array, a gate driving unit, a plurality of data signal lines, a switch control unit, a plurality of first switch units and a plurality of second switch units. Each of the pixel unit columns is connected to the gate driving unit through one of the data signal lines. The switch control unit is respectively connected to each of the first switch units and each of the second switch units. When the plurality of first switch units are turned off and the plurality of second switch units are turned on, charges of each of the pixel units in the plurality of pixel unit columns are neutralized.

Growing community of inventors

Guangdong, China

Xiaoyu Huang