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Luminance degradation estimation

A technology of images and representative points, which is applied in the field of display devices and can solve problems such as launching transaction counts

Active Publication Date: 2020-05-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, existing methods do not address how to count emission transactions

Method used

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  • Luminance degradation estimation
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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0023] For display devices, keeping the brightness of each pixel uniform is an important issue. For example, the pixels of small displays mounted on mobile devices may have the same problem. Compensating for brightness unevenness is an important issue for display devices. For example, this is an important issue for organic light emission diode (OLED) display devices and high-definition displays for mobile devices.

[0024] In general, initial problems and / or errors in pixels / pixel e...

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Abstract

The present invention provides a display device. The display device includes: a means for estimating emission transaction time by monitoring one or more representative points of an image which is estimated to be frequently displayed, and a means for setting compensation data for each pixel according to the estimated emission transaction time. The present invention achieves compensation of luminance based on emission transaction time.

Description

technical field [0001] The present application relates to a display device, in particular to brightness compensation. Background technique [0002] Generally speaking, a high-quality display device is required, and the brightness of each pixel needs to be uniform. However, if emission transactions for all pixels and frames need to be calculated to determine luma falloff, a very large memory area is required, which is not feasible for mobile devices. Even without counting every transaction, but one in a few pixels or frames, the data is still too large to fit on a mobile device, and the data is not a count of transactions, but a source of estimates. Also, previous approaches focused on large panels like TV displays. With enough space, these devices can be loaded with huge memory. In the prior art, a method of setting a predetermined brightness for a display and a method of counting transactions are disclosed in US Patent Application No. 2016 / 0275420, Japanese Patent Applic...

Claims

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Application Information

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IPC IPC(8): G09G3/00G09G3/30
CPCG09G3/20G09G2320/0233G09G2320/0257G09G2320/0271G09G2320/0285G09G2320/029G09G2320/048G09G2360/16
Inventor 冈本忠之
Owner HUAWEI TECH CO LTD
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