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Display apparatus

專利號(hào)
US10867561B2
公開日期
2020-12-15
申請人
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

The driving method of the comparative example and the driving method according to this embodiment shown in FIGS. 5 to 10 will be described here assuming that the switch SW1 selects the signal line 124 to which a pixel R1 (red) is connected, the switch SW2 selects the signal line 124 to which a pixel G1 (green) is connected, the switch SW3 selects the signal line 124 to which a pixel B1 (blue) is connected, the switch SW4 selects the signal line 124 to which a pixel R2 (red) is connected, the switch SW5 selects the signal line 124 to which a pixel G2 (green) is connected, the switch SW6 selects the signal line 124 to which a pixel B2 (blue) is connected, the switch SW7 selects the signal line 124 to which a pixel R3 (red) is connected, the switch SW8 selects the signal line 124 to which a pixel G3 (green) is connected, and the switch SW9 selects the signal line 124 to which a pixel B3 (blue) is connected among the plurality of pixels 110. Additionally, as for the desired signal voltages of image signals written in the pixels 110 via the signal lines 124, a signal voltage Vr1 is written in the pixel R1, a signal voltage Vg1 is written in the pixel G1, a signal voltage Vb1 is written in the pixel B1, a signal voltage Vr2 is written in the pixel R2, a signal voltage Vg2 is written in the pixel G2, a signal voltage Vb2 is written in the pixel B2, a signal voltage Vr3 is written in the pixel R3, a signal voltage Vg3 is written in the pixel G3, and a signal voltage Vb3 is written in the pixel B3. The image displayed on the display apparatus 100 is not an image with a high spatial frequency such as a fine checkered pattern or stripe pattern which needs to change the color or luminance on a pixel basis but an image such as a landscape image that gradually changes the color or luminance over a plurality of pixels. Hence, if the pixels 110 adjacent to each other have the same emission color, the signal voltages of image signals rarely have a difference. On the other hand, if the pixels 110 adjacent to each other have different emission colors, a difference is generated between the signal voltages of image signals in accordance with the luminance ratio of the pixels 110 of the three emission colors according to the displayed color.

權(quán)利要求

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