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Display device and driving method and driving device thereof

A technology of a display device and a driving method, which is applied in the field of a driving device and a display device, can solve problems such as low brightness of a display screen, achieve effects of improving smearing, comfortable user experience, and improving overall image quality

Active Publication Date: 2021-09-28
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a display device and its driving method, and the driving device is used to solve the problem that the brightness of the high gray-scale display screen in the first frame is low when the display screen of the display device is switched from low gray scale to high gray scale. problem with normal brightness

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  • Display device and driving method and driving device thereof
  • Display device and driving method and driving device thereof
  • Display device and driving method and driving device thereof

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Embodiment Construction

[0064] In order to further illustrate the display device, the driving method thereof, and the driving device provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.

[0065] Based on the problems existing in the background technology, the inventors of the present invention have found through research:

[0066] Take gray scale 0 to gray scale 255 as an example. like figure 1 As shown, the display device with a refresh rate of 60HZ is in the low-brightness mode, and the brightness change waveform is switched from gray scale 0 (L0) to gray scale 255 (L255). like figure 2 As shown, the display device with a refresh rate of 120HZ is in the low-brightness mode, and the brightness change waveform is switched from gray scale 0 (L0) to gray scale 255 (L255).

[0067] When the screen is switched to L255, the brightness of the first frame is far lower than the normal brightness of L255, and the br...

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Abstract

The invention provides a display device and a driving method and a driving device thereof, relates to the technical field of display, and aims to solve the problem that the brightness of a high-gray-scale display picture in a first frame is lower than normal brightness when the display picture of the display device is switched from a low gray scale to a high gray scale. The driving method of the display device comprises the following steps of switching the display device from an mth gray-scale picture to an nth gray-scale picture, wherein m is more than or equal to 0 and less than or equal to 255; the step specifically comprises the following steps: under the condition of a target brightness display mode, obtaining a data difference value between a data voltage corresponding to an mth gray-scale picture and a data voltage corresponding to an nth gray-scale picture of a sub-pixel; judging whether the data difference value is larger than a preset difference value or not, and if the data difference value is larger than the preset difference value, when the display device is switched from the mth gray-scale picture to the nth gray-scale picture, controlling the sub-pixels to display a non-first-frame display picture in the nth gray-scale picture. The driving method provided by the invention is used for driving the display device to display.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device, a driving method thereof, and a driving device. Background technique [0002] Currently, in a display device equipped with an organic light-emitting diode (English: Organic Light-Emitting Diode, referred to as: OLED) screen, due to the influence of the driving circuit and device structure, when the display screen of the display device is switched from low gray scale to high gray scale, It is a common problem that the brightness of the first frame of the high-grayscale display screen is lower than the normal brightness, and this problem is especially serious at low brightness. The specific impact is that when the display brightness of the display device is low and the background is dark, if the screen is swiped, the edges of the icons and fonts on the screen will become blurred and the color will be abnormal, causing the problem of screen smearing, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0257
Inventor 宋广军陈文斌张洪斌韦钦河
Owner BOE TECH GRP CO LTD
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