He Wantao, Guo Yingzhi. Study of automatical measurement for image point intensity homogeneity of matrix LED display[J]. LASER TECHNOLOGY, 1995, 19(2): 105-109.
Citation:
He Wantao, Guo Yingzhi. Study of automatical measurement for image point intensity homogeneity of matrix LED display[J]. LASER TECHNOLOGY, 1995, 19(2): 105-109.
He Wantao, Guo Yingzhi. Study of automatical measurement for image point intensity homogeneity of matrix LED display[J]. LASER TECHNOLOGY, 1995, 19(2): 105-109.
Citation:
He Wantao, Guo Yingzhi. Study of automatical measurement for image point intensity homogeneity of matrix LED display[J]. LASER TECHNOLOGY, 1995, 19(2): 105-109.
In this paper,the research how to measure automatically the image point homogeneity of a high density matrix LED display is summarized.Based on the measuring method of integrating sphere-photomultiple tube(IS-PMT),the device of automatical measuring of image point homogeneity of a matrix LED display has been developed.The device adopts the MCS-51 microcomputer on chip to realize the functions of automatical measurement and to have a good interface between user and computer for measuring all kinds of high density matrix LED displays.After correcting the measuring errors,the precision of the measurement equipment is up to 1.7%.
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