Hkc Corporation Limited

Chongqing Hkc Optoelectronics Technology Co., Ltd.

Chongqing Advance Display Technology Research

Chia-Hang Lee

Jing-Ren Shi

The present application provides a method, a device and a system for determining an actual option common voltage of a display panel. The method for determining the actual option common voltage of the display panel includes the following steps: acquiring a first common voltage and a second common voltage for fitting a curve; acquiring a first flicker corresponding to the first common voltage and a second flicker corresponding to the second common voltage; acquiring a first Vcom-Flicker curve according to the first common voltage and the first flicker, and acquiring a second Vcom-Flicker curve according to the second common voltage and the second flicker; and determining a common voltage at an intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve, in which the common voltage at the intersection is the actual option common voltage.

Method, device and system for determining actual option common voltage of display panel

Provided are a driving method for a display panel and a driving device thereof. The driving method includes: dividing pixels into bright pixels and dark pixels that are in a cross arrangement; converting driving signals into bright region driving signals and dark region driving signals; and driving the bright pixels and the dark pixels respectively by using the bright region driving signals and the dark region driving signals.

Driving method for display panel and driving device thereof

A method and apparatus for compensating view chromatic aberration of a display device, and a display device are provided, which includes: receiving an inputted image, obtaining a first pixel voltage and a second pixel voltage of each of pixels in two adjacent frames of the image, looking-up the first pixel voltage and the second pixel voltage and obtaining a corresponded first driving signal and a corresponded second driving signal, individually, computing a brightness compensation signal required in a backlight module of a backlight region based on the first driving signal, the second driving signal and a predetermined standard brightness signal, and compensating view chromatic aberration of a post frame of the image based on the brightness compensation signal.

Method and apparatus for compensating view chromatic aberration of display device and display device

A luminance correction method and correction device for a display panel are disclosed. The luminance correction method for a display panel includes the following steps: collecting full-picture optical information; calculating, according to the full-picture optical information of a high-gray level picture and the full-picture optical information of a low-gray level picture, target optical luminance values corresponding to medium-gray level pictures; and comparing the full-picture optical information of the medium-gray level pictures with a target optical luminance value corresponding to a current medium-gray level picture, and obtaining a gray level correction matrix corresponding to a current gray level.

Luminance correction method and luminance correction device for display panel

This application discloses a method for driving a display panel and a display panel, the driving method including steps of: inputting a frame of image; obtaining a signal of the frame of image progressively scanned by the display panel; selecting each row of pixels in the frame of image by using a multiple of 2 as an interval, and calculating a color saturation level of each of the selected pixels at intervals to form a color saturation value; determining a chromatic aberration level of the frame of image according to the color saturation value; adjusting a gamma curve value according to the chromatic aberration level of the frame of image; and driving the display panel by using the adjusted gamma curve value.

Method for driving display panel and display panel

A display device and a white balance adjusting method of the display device are provided. The white balance adjusting method comprises the following steps: measuring a stimulus value of each of gray scales of each of pixels of a panel; defining a highest voltage of each of the pixels at a maximum of the stimulus value; re-defining a white highest voltage using a first white balance pixel look-up table according to the highest voltage of each of the pixels; defining a target value for a white balance color pixel degree adjustment according to the white highest voltage and a corresponding white chromaticity; and acquiring an adjusted second white balance pixel look-up table to complete a white balance adjustment of the display device.

Display device having white balance adjusting module and white balance adjusting method thereof

A display device and a white balance adjusting method thereof are provided. The white balance adjusting method comprises: measuring a stimulus value of each of gray scales of each of pixels of a panel; defining a white point voltage and a white chromaticity; calculating a white chromaticity difference between a bright state white point voltage and a dark state white point voltage; defining a target white balance curve according to the white point voltage, the white chromaticity and the white chromaticity difference; and obtaining a white balance look-up table according to the white balance curve to complete a white balance adjustment of the display device.

The present application discloses a method and a test machine platform for quickly searching for a common voltage of a display panel. The method includes: measure a flicker value of the display panel; perform a power conversion on the flicker value, and perform a unary quadratic function fitting on the converted flicker value and the corresponding common voltage; and obtain a common voltage value as a common voltage.

Method and test machine platform for quickly searching for common voltage of display panel

This application relates to a method for controlling a curvature of an adjustable curved-surface display and a curved-surface display apparatus. The control method includes: capturing a scene picture information according to an image sensor mounted on a curved-surface display; calculating a location of a viewer in the scene picture information according to a processing unit; calculating an angle between the viewer and a central line of the curved-surface display according to the location; calculating optimal visual angle information according to the angle; and obtaining an optimal curvature according to the optimal visual angle information, to control a display surface bending distance of the curved-surface display.

Method for controlling curvature of adjustable curved-surface display and curved-surface display apparatus

A calculation method for viewing-angle compensation of a display device, a viewing-angle compensation structure, and a display device is disclosed. The method includes: measuring tristimulus values for red, green, and blue displayed in grayscale of a display device in a viewing angle and a luminance gamma curve; calculating a central viewing angle, a first viewing angle, and a second viewing angle of an observation viewing angle of the display device, to obtain a viewing angle range of the observation viewing angle; obtaining a display look-up table (LUT) by using an angle of the viewing angle and the luminance gamma curve and according to a viewing angle algorithm; then obtaining a viewing-angle compensation value by using the central viewing angle and the viewing angle range and according to the display LUT; and eventually adjusting the corresponding tristimulus values in the display device according to the viewing-angle compensation value.

Calculation method for viewing-angle compensation of display device, viewing-angle compensation structure, and display device

This application relates to a measurement method for measuring a display panel and an apparatus thereof. The measurement method for measuring a display panel includes: correcting a measurement picture of a display panel; obtaining, by using a measurement apparatus, a picture to be measured; setting a shooting instrument to complete a shooting parameter under a measurement environment; shooting and correcting system measurement data by using the shooting parameter; replacing a display panel to be measured; measuring a gamma curve; and outputting a gamma curve, where the display panel needs to be corrected only once, and a gamma curve of a next display panel continues to be measured.

Measurement method for measuring display panel and apparatus thereof

This application provides a display device and a control method thereof. The control method includes the following steps: obtaining, by using an image sensor module, a target image; analyzing, by using a pupil computing module, first data of the target image; and controlling, by using a processing module according to the obtained first data of the target image, a light emitting module to adjust luminance of a display panel.

Growing community of inventors

Chongqing, China

Chia-Hang Lee