公开(公告)号：US11443721B2

公开(公告)日：2022-09-13

申请号：US16738537

申请日：2020-01-09

Applicant: Japan Display Inc.

Inventor： Masaya Tamaki ,  Yutaka Mitsuzawa ,  Takayuki Nakao ,  Yutaka Ozawa

IPC: G09G5/395 ,  G09G3/36

Abstract: A display device includes: sub-pixels each including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory blocks in the sub-pixels that belong to the corresponding row; a memory selection circuit configured to concurrently output memory selection signals to the memory selection line groups; a potential line; a conduction switch provided for at least one memory in the memory block on a one-to-one basis; and an operating-memory conduction circuit configured to output, to the conduction switch, an operation signal for determining whether to electrically couple or uncouple the potential line and the corresponding one memory. Each memory is capable of storing sub-pixel data therein when being coupled to the potential line. Each sub-pixel displays an image based on the sub-pixel data stored in one memory in the sub-pixel according to the memory selection line supplied with the memory selection signal.

公开(公告)号：US11158277B2

公开(公告)日：2021-10-26

申请号：US16872771

申请日：2020-05-12

Applicant: Japan Display Inc.

Inventor： Yutaka Mitsuzawa ,  Takayuki Nakao ,  Masaya Tamaki ,  Yutaka Ozawa

IPC: G09G3/36 ,  G09G3/32

Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.

公开(公告)号：US10997937B2

公开(公告)日：2021-05-04

申请号：US16742500

申请日：2020-01-14

Applicant: Japan Display Inc.

Inventor： Takayuki Nakao ,  Takehiro Shima

IPC: G09G3/36

Abstract: According to an aspect, a display device includes: two pixels having different areas; a first signal line extending in an arrangement direction of the two pixels and coupled to one of the two pixels; a second signal line extending in the arrangement direction and coupled to the other of the two pixels; and a scan line extending between the two pixels in an intersection direction intersecting the arrangement direction and coupled to the two pixels.

公开(公告)号：US10692455B2

公开(公告)日：2020-06-23

申请号：US15949556

申请日：2018-04-10

Applicant: Japan Display Inc.

Inventor： Yutaka Mitsuzawa ,  Takayuki Nakao ,  Masaya Tamaki ,  Yutaka Ozawa

IPC: G09G3/36 ,  G09G3/32

Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.

公开(公告)号：US10559286B2

公开(公告)日：2020-02-11

申请号：US16057934

申请日：2018-08-08

Applicant: Japan Display Inc.

Inventor： Masaya Tamaki ,  Yutaka Mitsuzawa ,  Takayuki Nakao ,  Yutaka Ozawa

IPC: G09G5/395 ,  G09G3/36

Abstract: A display device includes: sub-pixels each including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory blocks in the sub-pixels that belong to the corresponding row; a memory selection circuit configured to concurrently output memory selection signals to the memory selection line groups; a potential line; a conduction switch provided for at least one memory in the memory block on a one-to-one basis; and an operating-memory conduction circuit configured to output, to the conduction switch, an operation signal for determining whether to electrically couple or uncouple the potential line and the corresponding one memory. Each memory is capable of storing sub-pixel data therein when being coupled to the potential line. Each sub-pixel displays an image based on the sub-pixel data stored in one memory in the sub-pixel according to the memory selection line supplied with the memory selection signal.

公开(公告)号：US10438550B2

公开(公告)日：2019-10-08

申请号：US15277039

申请日：2016-09-27

Applicant: Japan Display Inc.

Inventor： Takehiro Shima ,  Takayuki Nakao

IPC: G09G3/36 ,  G02F1/133 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1335 ,  G02F1/1368

Abstract: According to one embodiment, a display device includes a pixel electrode and a memory provided in each of pixels, a common electrode, a signal line to which a digital signal is supplied, a first drive line to which a display signal is supplied, a second drive line to which a non-display signal is supplied, a storage control circuit which stores the digital signal in the memory in a storage period, and a select control circuit which selectively supplies, in a display period, to the pixel electrode, one of the display signal and the non-display signal. The second drive circuit maintains potential of the common signal of the display period in the storage period when the display period transitions to the storage period.

公开(公告)号：US20180308446A1

公开(公告)日：2018-10-25

申请号：US15949556

申请日：2018-04-10

Applicant: Japan Display Inc.

Inventor： Yutaka Mitsuzawa ,  Takayuki Nakao ,  Masaya Tamaki ,  Yutaka Ozawa

IPC: G09G3/36

Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.

公开(公告)号：US12174500B2

公开(公告)日：2024-12-24

申请号：US18071852

申请日：2022-11-30

Applicant: Japan Display Inc.

Inventor： Takayuki Nakao ,  Takehiro Shima

IPC: G02F1/1362

Abstract: According to an aspect, a display device includes: an array substrate comprising reflective electrodes arrayed in a matrix having a row-column configuration in a first direction and a second direction and a light-transmitting conductive layer at least partially overlapping any one of the reflective electrodes when viewed in a third direction orthogonal to the first direction and the second direction; a counter substrate comprising a common electrode overlapping the reflective electrodes when viewed in the third direction and a color filter including a plurality of colors; and a backlight. The array substrate is disposed between the counter substrate and the backlight. Part of the light-transmitting conductive layer protrudes between two reflective electrodes adjacently disposed in the first direction among the reflective electrodes.

公开(公告)号：US20200273420A1

公开(公告)日：2020-08-27

申请号：US16872771

申请日：2020-05-12

Applicant: Japan Display Inc.

Inventor： Yutaka Mitsuzawa ,  Takayuki Nakao ,  Masaya Tamaki ,  Yutaka Ozawa

IPC: G09G3/36

Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.

公开(公告)号：US10467976B2

公开(公告)日：2019-11-05

申请号：US16422097

申请日：2019-05-24

Applicant: JAPAN DISPLAY INC.

Inventor： Takayuki Nakao ,  Takehiro Shima

IPC: G09G3/36 ,  G09G3/20 ,  G09G5/39 ,  G09G3/34 ,  G06Q30/02

Abstract: According to one embodiment, a drive circuit for a display device includes a plurality of pixels. Each of the pixels includes a memory, and a display element driven based on output data of the memory. The drive circuit includes a storage control circuit for storing, in the memory, the data from a signal line, and a display control circuit which provides the display element with a display signal or a non-display signal based on the data stored in the memory. The drive circuit changes a display area from a first display state to a second display state. When the drive circuit sets the display area to the second display state, the drive circuit supplies a signal which does not depend on the image data to the display element.