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Display apparatus

專利號(hào)
US10867561B2
公開日期
2020-12-15
申請(qǐng)人
CANON KABUSHIKI KAISHA(JP Tokyo)
發(fā)明人
Yasuharu Ota; Yasushi Matsuno; Yu Maehashi; Hiromasa Tsuboi
IPC分類
G09G3/3291; G09G3/3266; G09G3/3233; H01L27/32
技術(shù)領(lǐng)域
signal,pixel,image,pixels,in,driving,voltage,row,line,emission
地域: Tokyo

摘要

A display apparatus in which selection circuits and display blocks are arranged is provided. Each of the display blocks include signal lines extending in a column direction, and pixels connected to the signal lines and arranged in a matrix in the column direction and in a row direction crossing the column direction. Each of the selection circuits selects a signal line in a predetermined order to supply an image signal among the signal lines such that the image signal is written in each of the pixels arranged in the row direction among the pixels. A time to select at least one signal line among the signal lines and supply the image signal is different from a time to select a signal line other than the at least one signal line among the signal lines and supply the image signal.

說明書

More specifically, the plurality of signal lines 124 include the signal lines 124 connected to the pixels (for example, the pixel R3 and the pixel G1) whose emission colors are different from each other in the plurality of pixels 110 and the signal lines 124 connected to the pixels (for example, the pixel R1 and the pixel R2) of the same emission color in the plurality of pixels 110. The selection circuit 200 operates such that the time to select the signal line 124 connected to the pixel G1 in a case in which the signal line 124 connected to the pixel G1 is selected next to the signal line 124 connected to the pixel R3, and the image signal is supplied becomes longer than the time to select the signal line 124 connected to the pixel R2 in a case in which the signal line 124 connected to the pixel R2 is selected next to the signal line 124 connected to the pixel R1, and the image signal is supplied. In other words, the plurality of pixels 110 form pixel groups (a pixel group including the pixels R1, R2, and R3, a pixel group including the pixels G1, G2, and G3, and a pixel group including the pixels B1, B2, and B3) of the pixels 110 of the same emission colors. In the period (one horizontal scanning period described above) to supply the image signal to each of the pixels arranged on one row among the plurality of pixels 110, for each pixel group, each selection circuit 200 selects the signal line 124 to supply the image signal among the plurality of signal lines 124 such that the image signals are written in a predetermined order (in the driving method shown in FIG. 5, the order of arranging in the row direction) in the pixels 110 included in the pixel group. That is, as shown in FIG. 5, when supplying the image signal to the signal line 124 connected to the pixel G1 or the pixel B1 in which the image signal is written at the start of switching to a different emission color, the time to select the signal line 124 and supply the image signal is made long. On the other hand, at the switching to the signal line 124 connected to the pixel 110 of the same emission color, the time to select the signal line 124 and supply the image signal is shortened. In this way, the switching unit 203 of the selection circuit 200 changes the time to select the signal line to supply the image signal in accordance with the order of selecting the signal lines 124 to supply the image signal among the plurality of signal lines 124, more specifically, a change in the emission color of the pixel 110 connected to the selected signal line 124. This can implement more accurate image signal supply and write to each pixel 110.

權(quán)利要求

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