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Driving method of display panel, display panel and display device

A driving method and display panel technology, applied to static indicators, instruments, etc., can solve problems such as uneven display brightness

Pending Publication Date: 2022-07-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of display device function integration (for example, the integration of display function and touch function), some display devices (for example, Mobile RGBW products) have uneven display brightness

Method used

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  • Driving method of display panel, display panel and display device
  • Driving method of display panel, display panel and display device
  • Driving method of display panel, display panel and display device

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Embodiment Construction

[0048] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0049] The inventor of the present invention found in the research that the main reason for the problem of the brightness uniformity of the screen displayed in the existing large-size display panel is that the capacitive resistance of the driving circuit in the large-size screen is accumulated along the direction away from the driver (IC). , resulting in an excessively large difference between the data signal actually received by the far-end sub-pixel (ie, the sub-pixel farther from the driver) and the data signal sent by the driver, which in turn leads to the near-end pixel (ie, the sub-pixel closer to the driver) There is a difference in the display brightness of the r...

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Abstract

The invention provides a driving method of a display panel, which is applied to a driver of the display panel, and the driving method comprises the following steps: determining a gray scale compensation value for providing a data signal to an Xth row of sub-pixels; determining an actual gray scale corresponding to the Xth row of sub-pixels according to the gray scale compensation value and the gray scale theoretical value of the Xth row of sub-pixels; and providing a data signal for the Xth row of sub-pixels according to the actual gray scale corresponding to the Xth row of sub-pixels. The step of determining the gray scale compensation value comprises the following steps: calculating a gray scale difference value delta through a formula delta = Lx-Lx-1, wherein Lx and Lx-1 are theoretical gray scales of the Xth row of sub-pixels and the (X-1) th row of sub-pixels respectively; and determining a gray scale compensation value according to the gray scale difference value and a gray scale compensation comparison table. According to the driving method provided by the invention, the brightness uniformity of the picture displayed by the display panel can be improved, the phenomenon that the brightness of the far-end sub-pixels is reduced due to the influence of circuit capacitance and resistance on the amplitude of the data signals received by the far-end sub-pixels is eliminated, and the image display effect of the display panel is improved. The invention further provides a display panel and a display device.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a driving method of a display panel, a display panel and a display device. Background technique [0002] With the rapid development of display technology, the display screen of smart mobile products has embarked on an upgrade route of high brightness, low power consumption, high refresh rate and large size. Based on the requirements of high brightness and low power consumption, the existing technology is derived Mobile RGBW products are released, and the mainstream arrangement is red (R, Red), green (G, Green), blue (B, Blue), and white (W, White) 4 colors of sub-pixels (sub pxiel) cyclically arranged, The arrangement of the odd and even rows is different. Since the white sub-pixels are added to this arrangement, the transmittance improvement effect of the display panel (paNel) is very obvious. Under the same backlight brightness, the brightness of the modules arran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G3/3611G09G2320/0233G09G3/3685G09G2310/0291G09G2310/0297G09G2320/0223G09G2320/0285G09G2360/16G09G3/2074G09G2310/08
Inventor 韩文超孙伟
Owner BOE TECH GRP CO LTD