公开(公告)号：US20230326424A1

公开(公告)日：2023-10-12

申请号：US18130709

申请日：2023-04-04

Applicant: Japan Display Inc.

Inventor： Yoshihide OHUE ,  Daijiro TAKANO

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2310/0235

Abstract: A display device includes a plurality of scanning lines extending in a first direction, a plurality of signal lines extending in a direction intersecting the first direction, a first scanning circuit coupled to first coupling end parts of the scanning lines, a second scanning circuit coupled to second coupling end parts of the scanning lines, the second coupling end parts being opposite the first coupling end parts of the scanning lines, the first coupling end parts coupled to the first scanning circuit, and a signal output circuit configured to supply image signals to the signal lines. The scanning lines each have a broken part.

公开(公告)号：US20230033119A1

公开(公告)日：2023-02-02

申请号：US17875653

申请日：2022-07-28

Applicant: Japan Display Inc.

Inventor： Daijiro TAKANO ,  Mitsuhiro SUGAWARA

IPC: G06F3/041 ,  G06F3/042 ,  G06V40/13

Abstract: A detection device includes a sensor circuit in which a plurality of detection elements each comprising a photoelectric conversion element are arranged in a matrix having a row-column configuration in a detection area, and a detector having a touch detection period of detecting an object to be detected in contact with or in proximity to the sensor circuit and a fingerprint detection period of detecting asperities on a surface of the object to be detected.

公开(公告)号：US20230317026A1

公开(公告)日：2023-10-05

申请号：US18129144

申请日：2023-03-31

Applicant: Japan Display Inc.

Inventor： Daijiro TAKANO

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3696 ,  G09G2320/0247 ,  G09G2360/148

Abstract: According to one embodiment, a display device includes a display panel and a processing unit. The display panel includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a plurality of pixel electrodes, a plurality of switching elements, a common electrode and an optical sensor. The optical sensor outputs a detection signal corresponding to an amount of light coming from the liquid crystal layer side. The processing unit adjusts a common voltage supplied to the common electrode, based on a first detection signal output from the optical sensor when the display panel is in a positive polarity state, and a second detection signal output from the optical sensor when the display panel is in a negative polarity state.

公开(公告)号：US20230377529A1

公开(公告)日：2023-11-23

申请号：US18197355

申请日：2023-05-15

Applicant: Japan Display Inc.

Inventor： Daijiro TAKANO ,  Takayuki IMAI

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G2310/0202 ,  G09G2320/0271 ,  G09G2320/0257 ,  G09G2320/0295 ,  G09G2310/08

Abstract: A display device includes: a display panel having a display region in which pixels are arranged; scan lines each coupled to the pixels arranged in a row direction; signal lines each coupled to the pixels arranged in a column direction; a signal line drive circuit; a scan line drive circuit selecting the scan lines; and a signal processing circuit. A second half period of a selection period of a first scan line overlaps a first half period of a selection period of a second scan line. The signal processing circuit adjusts a pixel gradation value of the pixel in an m-th column coupled to the second scan line when a difference value between the pixel gradation value of the pixel in the m-th column coupled to the first scan line and an average gradation value of the pixels arranged in the m-th column is larger than a predetermined value.