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Method for establishing luminance compensation model and screen luminance compensation method and screen luminance compensation device

A technology for brightness compensation and method establishment, which is applied in the direction of cathode ray tube indicators, static indicators, instruments, etc., can solve the problems of constant brightness changes, uneven space and time of display devices, and the inability to guarantee the display brightness of display devices, etc. To achieve the effect of brightness compensation

Active Publication Date: 2016-08-24
BOE TECH GRP CO LTD
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Problems solved by technology

[0002] Under the current manufacturing process conditions, organic light emitting diode (Organic Light Emitting Diode, OLED) display devices have spatial and temporal non-uniformity problems, and as the size of display devices becomes larger, such problems become more and more exposed. Obviously, solving the display unevenness of large-size OLED display devices has become one of the indispensable key technologies in mass production
The display unevenness of OLED display devices is closely related to the manufacturing process. When there is a large difference in the threshold voltage value of the entire panel, the overall brightness uniformity of the display device will become poor; at the same time, the organic materials used in their own There is also the problem of changing brightness during the lifespan, which cannot be completely solved by improving the process
[0003] At present, only manufacturers can use professional equipment to perform brightness compensation on display devices, which means that once a display device is sold, the display device used by the user will always display the picture according to the brightness compensation value before leaving the factory. Aging, it is obvious that the brightness compensation value before leaving the factory can no longer guarantee the normal display brightness of the display device. Therefore, there is an urgent need for a technical solution for brightness compensation of the display device on the user side

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  • Method for establishing luminance compensation model and screen luminance compensation method and screen luminance compensation device
  • Method for establishing luminance compensation model and screen luminance compensation method and screen luminance compensation device

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Embodiment Construction

[0043] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0044] The present invention provides a solution to the problem in the prior art that display devices can only perform brightness compensation once before leaving the factory.

[0045] On the one hand, embodiments of the present invention provide a method for establishing a brightness compensation model, such as figure 1 shown, including:

[0046] Step S11, lighting up the test screen, and accumulating the luminous amount of the test screen.

[0047] Wherein, the above-mentioned test screen is the sample screen used in the test. In this embodiment, this test screen is used to represent the screen on the user side after leaving the factory for test analysis. Of course, in practical applications, the more test screens are used for testing, the final test ...

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Abstract

The invention provides a method for establishing a luminance compensation model, a screen luminance compensation method and a screen luminance compensation device. The establishing method comprises the following steps: lightening a tested screen, and accumulating luminous quantity of the tested screen; respectively calculating the corresponding luminance compensation coefficient of the tested screen when the luminous quantity of the tested screen is accumulated to a luminous quantity threshold interval of different value ranges; establishing a luminance compensation model, and storing a corresponding relationship between the luminous quantity threshold interval and the luminance compensation coefficient. The compensation method comprises the following steps: accumulating luminous quantity of a target screen; determining a luminance compensation coefficient of the target screen under the current historical luminous quantity from the luminance compensation model based on a preset luminous quantity threshold interval to which the current historical luminous quantity belongs in the target screen; performing picture compensation on the target screen based on the determined luminance compensation coefficient. According to the scheme of the invention, luminance compensation can be adaptively performed on the user side according to the screen aging stage, so that the display quality of the screen is maintained.

Description

technical field [0001] The invention relates to screen display technology, in particular to a method for establishing a brightness compensation model, a method and a device for compensating screen brightness. Background technique [0002] Under the current manufacturing process conditions, organic light emitting diode (Organic Light Emitting Diode, OLED) display devices have spatial and temporal non-uniformity problems, and as the size of display devices becomes larger, such problems become more and more exposed. Obviously, solving the display non-uniformity of large-size OLED display devices has become one of the indispensable key technologies in mass production. The display unevenness of OLED display devices is closely related to the manufacturing process. When there is a large difference in the threshold voltage value of the entire panel, the overall brightness uniformity of the display device will become poor; at the same time, the organic materials used in their own Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/10
CPCG09G5/10G09G3/3208G09G2320/048G09G2360/145G09G2320/0233G09G2320/0295G09G3/3225G09G2320/045
Inventor 王雨
Owner BOE TECH GRP CO LTD
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