Kunshan Go-visionox Opto-electronics Co., Ltd.

Other

Yuqing Wang

Zheng Wang

Xiaobao Zhang

Xinquan Chen

Feng Chen

Mingwei Ge

Tao Tang

Chong Han

A Gamma debugging method, apparatus and device. The method includes: determining a target display parameter of a display module at an igray scale binding point according to a target display parameter of the display module at a first gray scale binding point and a preset Gamma mapping relationship, controlling the display module to display an initial gray scale picture according to the target display parameter at the igray scale binding point, and collecting an actual display parameter of the display module at the igray scale binding point; and adjusting, under a condition that a difference between the actual display parameter at the igray scale binding point and the target display parameter at the igray scale binding point goes beyond a preset deviation threshold range, a data signal parameter corresponding to the igray scale binding point.

Gamma debugging method, apparatus and device

A method for Gamma debugging. The method for Gamma debugging is applicable to a display panel including a first display area and a second display area. A light transmittance of the first display area is greater than that of the second display area. The method includes: selecting, in the second display area, a test area having a same shape and size as the first display area; obtaining a first present brightness value when the test area corresponds to a specified register value under a specified grayscale; determining a plurality of first target brightness values when the first display area corresponds to a plurality of register values under the specified grayscale, according to the first present brightness value and a linear relationship between register values and brightness of the display panel; and performing Gamma debugging on the first display area according to the first target brightness values.

Method and apparatus for gamma debugging

Provided are a driver chip and a display apparatus. The driver chip includes a digital module, an analog module, and a decoupling capacitor. The digital module is configured to generate a digital signal. The analog module includes a reference voltage source and a Gamma voltage generation circuit, an output terminal of the reference voltage source is electrically connected to an input terminal of the Gamma voltage generation circuit, and the Gamma voltage generation circuit is configured to generate a Gamma voltage according to a reference voltage outputted by the reference voltage source. The decoupling capacitor is connected between the digital module and the output terminal of the reference voltage source.

Driving chip and display apparatus

The present application relates to the field of display technology, and discloses a display module test platform, including a core processor. The core processor is capable of supporting installation of a terminal operating system. A display output terminal of the core processor is connected to a display module to be tested. The display module to be tested includes a touch structure. The touch structure and the core processor communicate with each other via an Inter-Integrated Circuit (I2C) bus.

Display module test platform

A device for dimming a display screen includes a pixel driving circuit including a first Thin-Film Transistor, a second Thin-Film Transistor, a third Thin-Film Transistor, a capacitor and a pixel. Signals received by a gate of the first Thin-Film Transistor and a first electrode of the first Thin-Film Transistor correspond to a scanning signal Vscan and a data signal Vdata, respectively. Signals received by a gate of the third Thin-Film Transistor and a first electrode of the third Thin-Film Transistor correspond to a Vpwm signal and a transmitted signal transmitted from a second electrode of the second Thin-Film Transistor, respectively. A second electrode of the third Thin-Film Transistor is connected to the pixel. The capacitor is connected between the gate of the second Thin-Film Transistor and a power supply.

Devices and methods for dimming a display screen

A control method and a control device of display power supply, and an electronic device, applied to a TFT (thin film transistor) display screen. The TFT display screen includes a drive IC and a screen body; the drive IC is configured to control the screen body to display a corresponding image, and the screen body controls a pixel via a thin film transistor; the control method includes: controlling a power supply of the drive IC to power up according to a set rule after receiving a start signal for reducing a probability of abnormality in a voltage outputted by the drive IC; and supplying power continuously and normally to the drive IC.

Control methods and control devices for display power supply

A method includes acquiring a parameter value of a display screen to be adjusted; comparing the parameter value to a first set threshold and a second set threshold less than the first set threshold respectively. When the parameter value is equal to or greater than the first set threshold, perform dimming on the display screen, under a one-pulse condition, via both emission dimming mode and source dimming mode, or source dimming mode, to adjust the duty ratio of PWM to a first duty ratio. When the parameter value is less than the first set threshold, and is equal to or greater than the second set threshold, perform dimming on the display screen, under a multi-pulse condition, via both emission dimming mode and source dimming mode, or source dimming mode, to adjust the duty ratio of PWM to a second duty ratio less than the first duty ratio.

Methods and storage media for dimming a display screen

Disclosed are methods, apparatus, and storage media for dimming a display screen. The method includes: acquiring a parameter value of the display screen to be adjusted, wherein the parameter value has a correspondence with a brightness of the display screen; and comparing the parameter value with a set threshold to obtain a comparison result, and determining a corresponding dimming mode according to the comparison result, and performing dimming on the display screen via the corresponding dimming mode. The above method for dimming a display screen that determines a dimming mode according to a comparison result may overcome the deficiency caused by determining only one dimming mode, and may further mitigate impacts on the display quality while dimming.

Growing community of inventors

Kunshan, China

Yuqing Wang