Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Tcl China Star Optoelectronics Technology Co., Ltd.

Shenzhen China Star Optoelectronics Technology Co., Ltd.

Xuebing Zhou

Jinfeng Liu

Yu Wu

Xiaolong Chen

Guangxing Xiao

Ming-Jong Jou

Yichien Wen

Tao He

Mingjong Jou

Yi-chien Wen

Xinghai Zhao

An LCD device includes: a display panel, one display frame of the display panel corresponds to multiple scan cycles of a backlight source, a light-emitting diode array of an arbitrary one of backlight partitions has a first brightness and a second brightness under controlling of a timer control register in the scan cycles, wherein the first brightness is lower than the second brightness, and the timer control register controls the light-emitting diode array of at least one of the backlight partitions to have the first brightness in each of the scan cycles.

Liquid crystal display device

A liquid crystal display backlight module controlling method and a controlling device thereof disclosed in the present invention includes a programmable logic gate array board extracting backlight information from an image signal. Calculation of local dimming is performed by the programmable logic gate array board, a calculation buffer for local dimming calculation is sufficient, which can increase liquid crystal display backlight divisions. Furthermore, the present invention employs a row signal and a column signal to control and switch on light emitting diodes in the backlight light board, which can achieve the cost lowering effect.

Liquid crystal display backlight module controlling method and controlling device thereof

Disclosed is a hardware controller of a Nand device, a control method and a liquid crystal display. The hardware controller includes: a bad block management module, configured to manage bad block information of the Nand device, where the bad block information represents a bad block set in the Nand device; a main control module, configured to receive an operation command of a terminal; wherein the operation command is used to indicate a read/write operation on a target block set of the Nand device and a data transmission mode to perform the read/write operation, and the data transmission mode includes at least one of parallel transmission and serial transmission; and a read/write module, configured to skip a block in the Nand device that exists both in the bad block set and the target block set, and perform the read/write operation on remaining blocks in the target block set.

Hardware controller of NAND device, control method and liquid crystal display

A digital control driving method and a driving display device are disclosed. In the method, dividing an image frame into K sub-frames by a hit using a digital control method is adopted. Wherein in one frame period of the image frame, an occupied time of each K sub-frame is the same, and driving times of the K sub-frames are different. The K sub-frames are driven to display on the display panel in a special transmission mode within one frame time of the image frame. The transmission voltage value has only two values, corresponding to the light emission and non-emission of the pixel points on the display panel. The source driver IC only output two grayscale voltages so as to effectively avoid a drift of the Vth of the driving TFT such that an entire brightness of the AMOLED panel is even to improve the display quality.

Digital control driving method and driving display device

The invention provides a pixel driving circuit, repair method thereof, and a display device. The pixel driving circuit comprises: a first TFT, a second TFT, a third TFT, a fourth TFT, a fifth TFT, a capacitor, a first electroluminescent device, and a second electroluminescent device; by controlling the fourth and fifth TFTs to turn on and off alternatingly through the light-emitting control signal, the first and second electroluminescent devices emit light alternatingly so as to reduce operation duration of the first and second electroluminescent devices and improve the lifespan of the first and second electroluminescent devices, as well as to ensure the pixel emitting light normally when one of the first and second electroluminescent devices malfunctions by adjusting the voltage of the light-emitting control signal so that the remaining functioning electroluminescent device continues to operate.

Pixel driving circuit, repair method thereof and display device

The invention discloses a pixel driver circuit and driving method thereof. The pixel driver circuit comprises a first TFT (T) connected to first node (G) and second node (K); a second TFT (T), connected to first control signal (S), first node (G) and second node (K); a third TFT (T), connected to second control signal (S) and second node (K); a fourth TFT (T), connected to first control signal (S), third node (N) and reference voltage (Vref); a fifth TFT (T), connected to first control signal (S), third node (N) and data signal (Vdata); a sixth TFT (T), connected to third control signal (S); a first capacitor (C) and a second capacitor; the reference voltage (Vref) being less than data signal Vdata). The invention also provides a corresponding driving method. The invention uses internal detection to eliminate luminance inconsistency caused by change of the driving TFT threshold voltage.

Growing community of inventors

Guangdong, China

Xuebing Zhou