公开(公告)号：US10347206B2

公开(公告)日：2019-07-09

申请号：US15333698

申请日：2016-10-25

Applicant: Japan Display Inc.

Inventor： Takayuki Nakao ,  Takehiro Shima

IPC: G09G3/36 ,  G09G3/20 ,  G09G3/34 ,  G09G5/39 ,  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.

公开(公告)号：US20170123535A1

公开(公告)日：2017-05-04

申请号：US15403897

申请日：2017-01-11

Applicant: Japan Display Inc.

Inventor： Takeya Takeuchi ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Takehiro Shima

IPC: G06F3/044 ,  G09G3/36 ,  G06F3/041

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04104 ,  G06F2203/04108 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0809 ,  G09G2310/0291

Abstract: A display device with a touch sensor includes: plural display pixel electrodes; a common electrode arranged opposite to the display pixel electrodes; a display function layer having an image display function; a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode, wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, and a gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied.

公开(公告)号：US12118954B2

公开(公告)日：2024-10-15

申请号：US18354751

申请日：2023-07-19

Applicant: Japan Display Inc.

Inventor： Takehiro Shima

IPC: G09G3/20 ,  G02F1/1345 ,  G02F1/1362 ,  G09G3/36 ,  G11C11/41

CPC classification number: G09G3/3611 ,  G02F1/13454 ,  G02F1/1362 ,  G09G3/20 ,  G09G3/3648 ,  G02F2201/56 ,  G09G2300/04 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0857 ,  G09G2310/0278 ,  G09G2310/0291 ,  G09G2310/08 ,  G11C11/41

Abstract: According to one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, a first driver unit, and a second driver unit. The first driver unit is provided in a peripheral area around the display area, and supplies the digital signal to the signal line. The second driver unit is provided in the peripheral area, and supplies the scanning signal to the scanning line. In the display device, at least a part of the first driver unit is provided between the display area and the second driver unit.

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：US10996783B2

公开(公告)日：2021-05-04

申请号：US16815806

申请日：2020-03-11

Applicant: Japan Display Inc.

Inventor： Takeya Takeuchi ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Takehiro Shima

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G09G3/36

Abstract: A display device with a touch sensor is provided and includes a substrate; pixel electrodes on the substrate; thin film transistors (TFTs) coupled to the pixel electrodes; touch sensor electrodes arranged opposite to the pixel electrodes; a gate buffer coupled to the TFTs; a first switch coupled to the gate buffer; first-L and first-H lines coupled to the first switch; a second line coupled to the gate buffer; and a drive control circuit applying a drive signal to the touch sensor electrodes, wherein a signal supplied to the TFTs is one of a pulse wave signal and a signal in which different three potentials are switched at given timings, wherein three potentials include a first potential supplied through the first-L line, a second potential supplied through the second line, and a third potential supplied through first-H line, wherein the first switch switches to couple the gate buffer with first-L line and first-H line in synchronization with the drive signal in which a first and second common potential are repeated, such that the TFT circuits are supplied with the pulse wave signal in which first and third potential are repeated, and wherein the third potential is greater than the first potential and less than the second potential.

公开(公告)号：US10916208B2

公开(公告)日：2021-02-09

申请号：US16668760

申请日：2019-10-30

Applicant: Japan Display Inc.

Inventor： Takehiro Shima

IPC: G09G3/00 ,  G09G3/36 ,  G02F1/1345 ,  G02F1/1362 ,  G02F1/1368 ,  G11C19/28

Abstract: In one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and a memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, and first and second driver units. The first and second driver units are provided in a peripheral area. The first driver unit includes first circuit units connected to the signal lines. The first circuit units include first and second circuits. The first and second circuits are arranged in a second direction intersecting with a first direction, and are out of alignment in the first direction.

公开(公告)号：US10606431B2

公开(公告)日：2020-03-31

申请号：US16518645

申请日：2019-07-22

Applicant: Japan Display Inc.

Inventor： Takeya Takeuchi ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Takehiro Shima

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G09G3/36

Abstract: A display device with a touch sensor includes: plural display pixel electrodes; a common electrode arranged opposite to the display pixel electrodes; a display function layer having an image display function; a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode, wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, and a gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied.

公开(公告)号：US10529294B2

公开(公告)日：2020-01-07

申请号：US16371454

申请日：2019-04-01

Applicant: Japan Display Inc.

Inventor： Takehiro Shima

IPC: G09G5/00 ,  G09G3/36 ,  G02F1/1345 ,  G02F1/1362 ,  G02F1/1368 ,  G11C19/28

Abstract: In one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and a memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, and first and second driver units. The first and second driver units are provided in a peripheral area. The first driver unit includes first circuit units connected to the signal lines. The first circuit units include first and second circuits. The first and second circuits are arranged in a second direction intersecting with a first direction, and are out of alignment in the first direction.

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：US10262606B2

公开(公告)日：2019-04-16

申请号：US15417703

申请日：2017-01-27

Applicant: Japan Display Inc.

Inventor： Takehiro Shima

IPC: G09G5/00 ,  G09G3/36 ,  G02F1/1345 ,  G02F1/1362 ,  G09G3/20 ,  G11C11/41

Abstract: According to one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, a first driver unit, and a second driver unit. The first driver unit is provided in a peripheral area around the display area, and supplies the digital signal to the signal line. The second driver unit is provided in the peripheral area, and supplies the scanning signal to the scanning line. In the display device, at least a part of the first driver unit is provided between the display area and the second driver unit.