Hisense Visual Technology Co., Ltd.

Hisense USA Corporation

Hisense International Co., Ltd.

Qiang Du

Yuxin Zhang

Fulin Li

Zhenhua Pang

Guangxue Liu

Junxiong Zhang

Tingke Cai

Botao Li

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

Disclosed are a backlight drive circuit, a backlight driving method, and a display device. The backlight drive circuit according to some embodiments of the disclosure includes: a plurality of LED strips configured to be powered in a time-division mode; a discharging circuit connected with anodes of the plurality of LED strips; and a first switch element connected with cathodes of the plurality of LED strips, wherein the first switch element has a first terminal connected with the cathodes of the plurality of LED strips, and a second terminal grounded, and the first switch element is configured to be turned on when any one of the plurality of LED strips is powered on.

Backlight drive circuit, backlight driving method, and display device

The embodiments of the disclosure discloses a method of driving a dynamic backlight and a display device. In this method, a vertical synchronization signal corresponding to an input image signal is received; a first level signal and a second level signal are outputted alternately in response to a change edge of the vertical synchronization signal, where the total duration of the first level signal and the second level signal is 1/m of the duration between the change edge and a first change edge before the change edge, wherein the change edge and the first change edge before the change edge are change edges of a same changing direction; m is a positive integer; and the drive chip receives the first level signal and the second level signal and generates a PWM signal according to the first level signal and the second level signal.

Method of driving dynamic backlight and display device

The present disclosure describes a liquid crystal display device. The liquid crystal display device includes a substrate and a plurality of light sources disposed on the substrate and configured to generate excitation light. The liquid crystal display device includes a quantum dot film disposed in a light-emitting direction of the plurality of light sources and a plurality of stereoscopic reflecting plates disposed on the substrate. The liquid crystal display device includes an optical layer disposed between the plurality of light sources and the quantum dot film. The plurality of stereoscopic reflecting plates and the plurality of light sources form a plurality of cavities arranged in an array. The plurality of light sources are located on bottoms of the plurality of cavities respectively. The optical layer is disposed between the plurality of cavities and the quantum dot film, and configured to partially transmit and partially reflect the excitation light. The quantum dot film is configured to be excited by the excitation light to generate excited light.

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Qingdao, China

Qiang Du