Hisense Visual Technology Co., Ltd.

Guangxue Liu

Yuxin Zhang

Zhenhua Pang

Aichen Xu

Caixia Zhao

Qiang Du

Jie Yang

Botao Li

A display apparatus is disclosed. The display apparatus includes a display screen configured to display an image; at least one LED light bar configured to provide light to the display screen; and a power supply circuit configured to supply power to the display apparatus. The power supply circuit includes an LLC primary winding, a first secondary winding and a second LLC secondary winding, where the first LLC secondary winding is configured to convert a voltage of the LLC primary winding into a first voltage, the second LLC secondary winding is configured to convert the voltage of the LLC primary winding into a second voltage; and the power supply circuit is configured to adjust the first voltage output from the first LLC secondary winding into a third voltage, and supply power to the at least one LED light bar through a sum of the third voltage and the second voltage.

Display apparatus and display control method

A backlight module and a display apparatus are disclosed. The backlight module includes a circuit board, a driving chip on the circuit board, and a plurality of light-emitting areas corresponding to the driving chip. The driving chip includes a first pin and a third pin located on a first side of the driving chip, and a second pin and a fourth pin located on a second side of the driving chip, the first pin and the second pin are electrically connected inside the driving chip, and the third pin and the fourth pin are electrically connected inside the driving chip; the first side and the second side are opposite sides. The driving chip further includes a plurality of control terminals on a third side of the driving chip, the plurality of control terminals are correspondingly connected with the plurality of light-emitting areas.

Backlight module and display device

A display apparatus with a power supply circuit is provided. The power supply circuit is connected with a light emitting diode (LED) drive circuit, a filter circuit and a feedback circuit in the display apparatus. The power supply circuit includes a fixed-voltage power supply element and a variable-voltage power supply element, and the fixed-voltage power supply element is superposed on the variable-voltage power supply element and configured to supply power to the LED drive circuit in a stepped manner; and a controller is configured to control a voltage of the variable-voltage power supply element according to a variation of the output voltage feedback from the feedback circuit.

Display apparatus and step power circuit

A display apparatus and a display control method are disclosed. The display apparatus includes a backlight module and a display panel. The backlight module comprises a controller, a plurality of power sources, and a plurality of lamp areas corresponding to the plurality of power sources. The plurality of power sources include a first power source for providing a positive power supply signal to the controller and driving a lamp area, and a second power source for driving a lamp area. The plurality of power sources are configured to output negative power supply signals and negative reference signals; the controller is configured to output a driving signal through negative voltage driving based on a control signal, the negative power supply signals and the negative reference signals.

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Shandong, China

Guangxue Liu