Shenzhen China Star Optoelectronics Technology Co., Ltd.

Other

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

Shensian Syu

Hao Li

Jian He

Yichien Wen

Mingjong Jou

Chunhuai Li

Junling Zhu

The invention discloses a pixel internal compensation circuit and riving method. The pixel internal compensation circuit comprises: first TFT (T), with gate connected to third control signal (SCAN), source and drain connected to data voltage (Vdata) and first node (A); second TFT (T), with gate connected to first node (A), source and drain connected to second node (B) and high voltage power source (OVDD); third TFT (T), with gate connected to first control signal (SCAN), source and drain connected to first node (A) and reference voltage (Vref); fourth TFT (T), with gate connected to second control signal (SCAN), source and drain connected to second node (B) and initial voltage (Vini); capacitor C, with two ends connected to first node (A) and second node (B); OLED, with anode connected to second node (B), and cathode connected to low voltage power source (OVSS). The invention provides a corresponding driving method. The invention uses parallel driving mode to effectively increase sensing time of threshold voltage compensation to improve compensation effect.

Pixel internal compensation circuit and driving method

An image enhancement method is provided, the method includes steps of converting grayscale values for each pixel of a preset image into a hue value, a color saturation value, and an intensity value for each pixel of the preset image; performing an enhancement process on the color saturation value for each pixel of the predetermined image; rectifying the color saturation value for each pixel of the preset image; and converting the post-rectified hue value, the post-rectified color saturation value, and the post-rectified intensity value for each pixel of the preset image into post-rectified grayscale values for each pixel of a preset image.

Image color enhancement method including conversions of color parameters of pixels

A method of raising contrast of an OLED display panel converts an original RGB signal into a HSI color space constructed by a hue component, a saturation component and an intensity component, and implements histogram statistics to the intensity component to obtain a histogram of the intensity component, and obtains a conversion parameter according to the histogram of the intensity component, and obtains the new low driving voltage with calculation of the conversion parameter in combination with the original low driving voltage, and meanwhile, keeps the hue component and the saturation component unchanged, and implements enhancement treatment to the intensity component to obtain a new intensity component, and then, converts the hue component, the saturation component and the new intensity component into a RGB color space to obtain a new R'G&#x2032;B&#x2032; signal supplied to a pixel driving circuit.

Method of raising contrast of OLED display panel and system

A spiked liquid crystal display (SLCD) includes a plurality of LCD devices. Each LCD device includes an LCD panel, and a drive circuit controlling a display of the LCD panel. The drive circuit includes an adjusting equipment storing a display parameter, and the display parameters of the adjusting equipments of at least two LCD devices of the plurality of LCD devices are different.

Growing community of inventors

Shenzhen, China

Shensian Syu