Method and device for adjusting low grayscale of light-emitting diodes
A light-emitting diode, low gray-scale technology, applied in instruments, static indicators, etc., can solve the problems of non-linearity of current signal response of LED display screen, non-linearity of current signal response, etc., to improve clarity and fineness, the effect of correcting low grayscale nonlinearities
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no. 1 example
[0032] see figure 1 , figure 1 It is a flow chart of the method for adjusting the low gray scale of the LED provided by the first embodiment of the present invention. Such as figure 1 As shown, the method includes:
[0033] Step S101, classify different light points according to the preset classification standard, and the brightness and chromaticity values corresponding to each type of light point are equal;
[0034] Specifically, different light points are classified according to the classification information of the known light points (for example, the same type of light points correspond to the same brightness and chromaticity value), or the cluster recognition method, so as to identify each batch of LED light points. Wherein, the cluster recognition method may include, but is not limited to: partitioning methods, hierarchical methods, density-based methods, grid-based methods, Model-based methods and so on.
[0035] Step S102, respectively acquiring brightness and c...
no. 2 example
[0055] see figure 2 , figure 2 It is a flow chart of the method for adjusting the low gray scale of the LED provided by the second embodiment of the present invention. Such as figure 2 As shown, the method includes:
[0056] Step S201, classify each light point of different batches as a separate category;
[0057] Step S202, respectively acquiring brightness and chromaticity values corresponding to each gray scale of each type of light point;
[0058] Specifically, firstly, the display screen is controlled to display colors of each gray scale, and the display method may be to make the entire screen display a color of a certain gray scale, such as a solid color. Then obtain the brightness and chromaticity value Lxy corresponding to each gray scale, specifically, the method for obtaining the brightness and chromaticity value Lxy corresponding to each gray scale may include but not limited to: measure the brightness and chromaticity value Lxy again and again by a spectro...
no. 3 example
[0077] see image 3 , image 3 It is a flow chart of the method for adjusting the low gray scale of the LED provided by the third embodiment of the present invention. Such as image 3 As shown, the method includes:
[0078] Step S301, classify different light points according to the preset classification standard, and the brightness and chromaticity values corresponding to each type of light point are equal;
[0079] Specifically, the different lamp points are classified according to the classification information of the known lamp points, or the cluster recognition method, so as to identify each batch of LED lamp points. Wherein, the cluster recognition method may include, but is not limited to: partitioning methods, hierarchical methods, density-based methods, grid-based methods, model-based The method (model-basedmethods) and so on.
[0080] Step S302, respectively acquiring brightness and chromaticity values corresponding to each gray scale of each type of light p...
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