Hkc Corporation Limited

Unilumin Group Co., Ltd

Luhong Zhou

Ruidi Ran

Junfeng Xie

Rongrong Li

Mingliang Wang

Min Xing

Xuemei Chen

Wenlong Fan

Disclosed are a backlight module, a driving method thereof, and a display device. The method includes: in a first period t, outputting an initial current by a driver chip to a light-emitting unit in a light-emitting area; obtaining a difference between the initial current and an actual current; generating a second current according to the difference between the initial current and the actual current; in a second period t, outputting a second current by the driver chip to the light-emitting unit in the light-emitting area; and detecting the actual brightness of the light-emitting area, and determining a difference between the actual brightness and target brightness of the light-emitting area; generating a third current according to the difference between the actual brightness and the target brightness; and in a third period t, outputting the third current by the driver chip to the light-emitting unit in the light-emitting area.

Backlight module, driving method thereof and display device

A display apparatus and an electronic device are provided in the disclosure. The display apparatus includes N scan lines extending in a row direction and arranged in a column direction and N rows of sub-pixel units electrically connected to the N scan lines in one-to-one correspondence. The display apparatus further includes at least one parasitic capacitance charge-sharing circuit. For each of the at least one parasitic capacitance charge-sharing circuit, the parasitic capacitance charge-sharing circuit is disposed between corresponding two adjacent scan lines, a time point at which a former scan line of the two adjacent scan lines completes reception of a scan signal precedes a time point at which a latter scan line of the two adjacent scan lines begins reception of a scan signal by a scan-period interval.

Display apparatus and electronic device

A display panel and a display device are provided. The display panel includes a circuit board, a first temperature sensor, a control chip, a driver chip, and a second temperature sensor. The first temperature sensor is spade from the circuit board. The first temperature sensor is configured to obtain first temperature information. The control chip is configured to receive the first temperature information, and output a control signal according to the first temperature information and a preset temperature-compensation-curve. The driver chip is configured to output a driving voltage under the control of the control signal. The second temperature sensor is configured to obtain second temperature information. The control chip is configured to compare the second temperature information with a first preset temperature. When the second temperature information deviates from the first preset temperature, the control chip is configured to correct the preset temperature-compensation-curve and obtain a first corrected temperature-compensation-curve.

Display panel and display device

Provided is a data driving circuit and a display panel. The data driving circuit is configured to output a data signal for image display to multiple pixel units so as to drive the pixel units to display images. The data drive circuit includes a voltage regulating unit and multiple constant-current driving units, where the constant-current driving unit is configured to output a drive current corresponding to a data signal to at least one pixel unit. The voltage regulating unit is electrically connected to the multiple constant-current driving units and is configured to detect a driving current output by each constant-current driving unit and obtain a detection signal, and control the driving current output by each constant-current driving unit to be within a preset range according to the detection signal. The driving current output by each constant-current driving unit is adjusted.

Data driving circuit and display panel

The present disclosure provides a smoke detecting circuit and a display panel using the smoke detecting circuit. The circuit includes a smoke sensor, a smoke detecting module, and a first switch module. When the circuit is triggered on fire or smoking because of a short circuit, the smoke sensor is able to detect a smoke signal, the smoke detecting module is able to export a controlling signal immediately to control disconnection of the first switch module, cutting off a power source of a load, and protecting the load immediately while an accident happens. The load can be a display panel. The smoke detecting circuit is used for detecting the smoke signal of the display panel, without any additional external multi-function card, which reduces the installation space of the display panel with an easier arrangement of flat cables, and protects the display panel right away from accidents.

Growing community of inventors

Guangdong, China

Luhong Zhou