Shanghai Tianma Am-Oled Co., Ltd.

Xiamen Tianma Micro-Electronics Co., Ltd.

Shanghai Tianma Micro-Electronics Co., Ltd.

Wuhan Tianma Micro-Electronics Co., Ltd

Tianma Micro-Electronics Co., Ltd.

Bojia Lv

Xiangzi Kong

Hong Li

Qing Bian

Dong Qian

Bin Yang

Hanyu Gu

Hongling Wang

Kerui Xi

Jun Li

Gaojun Huang

Zhiyong Xiong

Sheng Huang

Liyuan Luo

Song Li

Junting Ouyang

Di Zhu

Lei Suo

Shuo Tang

Bozhang Sun

Boquan Lin

Fangyun Lin

Ning Yu

Rucuo Wei

Qiang Tian

Disclosed are a grayscale compensation method and apparatus, and a display device. The grayscale compensation method includes obtaining a basic grayscale of each compensation device; obtaining an equivalent lighting duration of the each compensation device, where the equivalent lighting duration is a duration of lighting the compensation device with a preset grayscale obtained by converting an actual lighting duration of the compensation device; if the equivalent duration reaches a preset time point, obtaining a grayscale compensation parameter corresponding to the compensation device by searching a table according to the preset time point and the basic grayscale, and performing grayscale compensation on a sub-pixel in the compensation device according to the grayscale compensation parameter and the basic grayscale.

Grayscale compensation method and apparatus, display device

Provided is a drive module. A main control unit in the drive module is configured to determine, according to the output voltage of the electrical energy storage unit, an optimal analog reference voltage output efficiency value of a power supply chip, determine, according to the output voltage of the electrical energy storage unit and the optimal analog reference voltage output efficiency value of the power supply chip, a voltage value of an analog reference voltage, and generate, according to the voltage value of the analog reference voltage, a control instruction corresponding to pulse signal information. A pulse signal generation unit is configured to generate a corresponding pulse signal according to the control instruction. An analog reference voltage unit in the power supply chip is configured to receive an electrical signal output by the electrical energy storage unit, and generate, according to the pulse signal, a corresponding analog reference voltage signal.

Drive module, voltage generation method thereof and display device

Provided is a display brightness compensation method including: setting an aging grayscale of a monochrome pixel of each of n test display panels; setting m test grayscales of the monochrome pixel; during a time period, illuminating the aging grayscale of the monochrome pixel, periodically illuminating each test grayscale of the monochrome pixel, and periodically obtaining a test display brightness of the monochrome pixel at the test grayscale at the aging grayscale; calculating a brightness-time characteristic of the monochrome pixel at each of the m test grayscales at the aging grayscale; and compensating an actual display brightness of a monochrome pixel of a target display panel at a current display moment based on the brightness-time characteristic. Both m and n are positive integers greater than or equal to 2. The monochrome pixels of any two test display panels have different aging grayscales.

Display brightness compensation method and system

A driving method and a driving chip for an organic light-emitting display panel, and a display device are provided. The method includes: acquiring a target brightness; determining a rank corresponding to the target brightness, each rank including a first brightness range, and the first brightness ranges being different and having no overlapping, the first brightness range including the target brightness, and each rank having a Gamma curve corresponding to a maximum brightness of the first brightness range in the rank, determining, in the rank, a duty ratio corresponding to the target brightness, the duty ratio being an effective pulse duty ratio of a light-emitting control signal, and the maximum brightness of the first brightness range in each rank corresponding to a same duty ratio; and driving the organic light-emitting display panel based on the Gamma curve and the duty ratio corresponding to the target brightness in the rank.

Driving method and driving chip for organic light-emitting display panel based on gamma curve, and display device

Provided is a method for adjusting display brightness, including: generating brightness correction data of each sub-pixel; generating edge correction data of the pixel in an edge display area; setting first codes for first sub-pixels based on the brightness correction data; setting first codes and one second code for second sub-pixels based on the brightness correction data and the edge correction data; storing a mapping table; configuring identification data of the first and second sub-pixels as first codes if the pixel is located in a center display area; configuring identification data of the first sub-pixel as a second code and identification data of the second sub-pixel as the first or second code if the pixel is located in the edge display area; storing the identification data of the first and second sub-pixels; and adjusting the display brightness of the display panel based on the mapping table and the identification data.

Method and device for adjusting display brightness

A display panel has a display area and a non-display area surrounding the display area. The display area has a first side and a second side opposite to the first side, and includes: a hollow area having first and second edges; and first to third display areas. The display panel includes: a driving chip arranged in the non-display area closer to the first side than to the second side; first data lines arranged in the first display area; second data lines arranged in the second display area; and third data lines arranged in the third display area. The first edge is closer to the driving chip than the second edge. At least one or more of the first data lines is connected to corresponding one or more of the second data lines through a switch unit.

Display panel and display device including the same

Disclosed are a display device and a method control of the display. The method includes: selecting an initial duty and a target initial brightness which generate a color shift is less than or equal to a preset color shift value; calculating a corresponding initial grayscale according to the initial duty and the target initial brightness; searching for an initial data voltage corresponding to the initial grayscale according to a gamma curve, where the initial data voltage is associated with the initial duty and the target initial brightness; and performing a brightness adjustment, where the brightness adjustment comprises either a segmented or a mixed pulse width modulation dimming technique and power modulation dimming technique, where the brightness adjustment is performed in a brightness interval from the target initial brightness to maximum brightness.

Display device, control method and apparatus thereof

The present disclosure relates to the field of display technologies and provides a display panel and a display apparatus for improving the accuracy of test signals acquired in a VT test. The display panel includes a base substrate. The base substrate is provided with a plurality of test leads in a non-display area, and the plurality of test leads includes a circuit board lead and a test point lead. The base substrate is also provided with a test pad and a test circuit board pin in the non-display area. The circuit board lead is electrically connected to the test circuit board pin, the test point lead is electrically connected to the test pad, and the test pad being reused as a circuit board alignment mark.

Display panel and display apparatus

A display panel has a display area and a non-display area surrounding the display area. The display area has a first side and a second side opposite to the first side, and includes: a hollow area having first and second edges; and first to fourth display areas. The display panel includes: a driving chip arranged in the non-display area close to the first side; first data lines arranged in the first display area; second data lines arranged in the second display area; third data lines arranged in the third display area; and fourth data lines arranged in the fourth display area. The first edge is close to the driving chip and the second edge is away from the driving chip, and each second signal line is connected to at least two third data lines through a signal switching circuit.

A foldable display panel, a display device, an image compensation method and an image compensation device are provided. The foldable display panel includes a first display panel and a second display panel which are foldable toward each other along a joining edge, and each of sub-pixels on the two display panels has an optical information detecting function. In a case that the first display panel and the second display panel are in a folded state, each of the sub-pixels on one display panel is used for detecting optical information of a corresponding sub-pixel on the other display panel, to perform optical compensation on the sub-pixel. Since optical information detection and image compensation are performed in a case that the foldable display panel is in the folded state, the use of the foldable display panel is not affected.

Foldable display pannel, display device, image compensation method and image compensation device

A display panel, a driving method, and a display device are provided. The display panel includes display area including main display area and auxiliary display area. Auxiliary display area has a smaller length than the main display area in row direction. Each auxiliary display area includes first display area, and non-rectangular display area having curved edge. First boundary is between each non-rectangular display area and first display area. Second boundary is between each non-rectangular display area and main display area. Each sector-shaped region has a vertex that is a center of circle corresponding to curved edge. Each sector-shaped region has attenuation transition zone having smaller width than radius of sector-shaped region. Width of attenuation transition zone adjacent to first boundary and width of attenuation transition zone adjacent to second boundary are smaller than width of attenuation transition zone of other sector-shaped regions.

Display panel, driving method, and display device

The present disclosure provides an image processing apparatus, an image processing method and a display apparatus. Where the image processing method includes: receiving a signal of an image to be displayed; correcting the grayscale of each pixel in the image to be displayed according to a pre-created correction data table including pixel positions, display correction data and edge correction data; and displaying according to the corrected grayscale of each pixel.

Image processing apparatus, image processing method and display apparatus

A method to improve display performance at edges of a circular display screen is provided. The method comprises determining an edge area and a central area of the circular display screen, the edge area surrounding the central area; along a direction from a geometric center of the circular display screen to the edge area of the circular display screen, dividing the edge area into n display regions each having a different luminance-level, where n is a positive integer larger than 1; and according to luminance of pixels in the central area and the luminance-level of each of the n display regions, adjusting the luminance of the pixels in each of the n display regions to corresponding target luminance. Along the direction from the geometric center to the edge area of the circular display screen, the corresponding target luminance of the pixels in the n display regions sequentially decreases.

Method to improve display performance at edges of circular display screen

An Organic Light Emitting Diode (OLED) display device and a manufacturing method thereof, the OLED display device including: a substrate; a pixel definition layer located on the substrate, wherein a plurality of pixel units arranged together are defined in the pixel definition layer, at least one of the pixel units comprises at least one first sub pixel, at least one second sub pixel and at least one third sub pixel, and the third sub pixel comprises at least two third secondary sub pixels; a first organic light emitting layer arranged in each of the at least one first sub pixel, a second organic light emitting layer arranged in each of the at least one second sub pixel, and third organic light emitting layers arranged in the at least two third secondary sub pixels of the at least one third sub pixel.

Organic light emitting diode display device and manufacturing method thereof

The present invention discloses a liquid crystal display device and a driving method thereof, and the device comprises a plurality of data lines; a plurality of gate lines; a plurality of common lines; at least one dummy gate line; a plurality of gate line trigger circuits; and a plurality of common line trigger circuits; wherein, one end of the last gate line is connected with the last gate line trigger circuit; one end of each of remaining gate lines are connected with a gate line trigger circuit corresponding to said each of remaining gate lines, and the other end of said each of the remaining gate lines are connected with the succeeding gate line trigger circuit; the first common line trigger circuit is connected with one dummy gate line, and each of remaining common line trigger circuits is connected with one or more preceding gate line trigger circuits. Latency to the charging time is effectively reduced with the liquid crystal display device of this invention.

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Shanghai, China

Bojia Lv