Brightness and chromaticity correction method of led display module
A technology of LED display screen and display module, which is applied in the field of display correction, which can solve problems such as the limitation of selection of LED light boards or LED cabinets, and achieve the effect of high-brightness chromaticity consistency and uniformity
Active Publication Date: 2015-09-09
XIAN NOVASTAR TECH
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Problems solved by technology
The existing LED display calibration method is difficult to ensure that the brightness, chromaticity and uniformity of the LED display using multiple batches of LED light panels or LED cabinets are highly consistent after calibration. The choice of enclosures is limited
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[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0021] Specifically, a method for correcting brightness and chromaticity of an LED display module proposed by an embodiment of the present invention includes the following steps S1 to S4:
[0022] Step S1: collecting brightness and chromaticity information of at least one sample extracted from a plurality of LED display modules. In this embodiment, the plurality of LED display modules belong to different batches, and the at least one sample is taken from different batches, and the number of samples drawn from each batch can be drawn according to a certain percentage. A single LED display module includes multiple pixels, which can be an LED light board or an LED box, and a single LED box will include one or more LED light boards and usu...
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The invention discloses a bright chroma correcting method for LED display modules. The bright chroma correcting method comprises the steps of collecting bright chroma information of at least one sample extracted out of the plurality of LED display modules, analyzing the bright chroma information of the at least one sample to obtain a public bright chroma value of the at least one sample, setting a bright chroma correcting target value according to the public bright chroma value, collecting bright chroma information of one LED display module to be corrected in the LED display modules, and working out a pixel point correcting coefficient of the LED display module to be corrected according to the bright chroma information of the LED display module to be corrected and the bright chroma correcting target value. The bright chroma correcting method can obtain the public bright chroma value through sampling and collecting, can set the bright chroma correcting target value according to the public bright chroma value and uses the bright chroma correcting target value to generate the pixel point correcting coefficient of the LED display module to be corrected. Thus, the LED display modules of different batches have higher bright chroma consistency.
Description
technical field [0001] The invention relates to the technical field of display correction, in particular to a method for correcting brightness and chromaticity of an LED display module. Background technique [0002] As a new type of display technology, LED display has gradually been accepted by the market due to its advantages of energy saving, environmental protection, and high brightness, and has been widely used in urban media, urban traffic electronic signage and other fields. [0003] At present, with the continuous growth of the LED display market, there are more and more demands for calibration of different batches of LED light panels or LED cabinets. The existing LED display calibration method is difficult to ensure that the brightness, chromaticity and uniformity of the LED display using multiple batches of LED light panels or LED cabinets are highly consistent after calibration. The choice of enclosures is limited. Contents of the invention [0004] Therefore, ...
Claims
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IPC IPC(8): G09G3/32G09G5/10
Inventor 袁胜春杨城赵星梅张光朋宗靖国
Owner XIAN NOVASTAR TECH