公开(公告)号：US20240288967A1

公开(公告)日：2024-08-29

申请号：US18417149

申请日：2024-01-19

Applicant: Sharp Display Technology Corporation

Inventor： Kohji NAGASAKA

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/04164 ,  G06F3/0446

Abstract: A touch input device includes M drive lines; N sense lines; (M×N) electrostatic capacitances; and a signal processor configured to output a first drive signal and detect a change in a plurality of electrostatic capacitances of the (M×N) electrostatic capacitances. The signal processor outputs the first drive signal to the at least one first drive line and outputs a second drive signal having a phase opposite to the first drive signal to each of at least two second drive lines. The signal processor outputs the first drive signal and the second drive signal so that a first amplitude total, which is obtained by multiplying an amplitude of the first drive signal by the number of first drive lines, is substantially equal to a second amplitude total, which is obtained by multiplying an amplitude of the second drive signal by the number of second drive lines.

公开(公告)号：US12066716B2

公开(公告)日：2024-08-20

申请号：US18126820

申请日：2023-03-27

Applicant: Sharp Display Technology Corporation

Inventor： Naru Usukura ,  Akiko Itoh ,  Koji Murata ,  Keisuke Yoshida

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1347 ,  G06F1/16

CPC classification number: G02F1/13362 ,  G02F1/133528 ,  G02F1/1347 ,  G06F1/1616

Abstract: An electronic device includes a first display panel including a first display surface, and a second display panel including a second display surface and configured to be disposed such that light emitted from the first display surface is incident on the second display surface. The first display panel is configured such that light emitted from the first display surface and incident on the second display surface includes a large amount of P-polarization components. The second display panel is a reflection-type display panel, and includes a polarizer disposed on the second display surface and configured to absorb S-polarization components of incident light.

公开(公告)号：US12066701B2

公开(公告)日：2024-08-20

申请号：US18228018

申请日：2023-07-31

Applicant: Sharp Display Technology Corporation

Inventor： Chiaki Minari ,  Naru Usukura ,  Ryuzo Yuki

IPC: G02F1/133 ,  G02F1/1334 ,  G02F1/137

CPC classification number: G02F1/13312 ,  G02F1/13345 ,  G02F1/137 ,  G02F2202/04 ,  G02F2203/02

Abstract: A display device includes a display panel and a control unit. The display panel includes a first substrate, a light modulation layer configured to switch between transmissive display and non-transmissive display, and a second substrate in this order, and further includes an optical sensor configured to detect a luminance of light incident from a first space located on one main surface side of the display panel and from a second space located on the other main surface side of the display panel. The control unit calculates, based on the luminance, a relationship between brightness of the first space and brightness of the second space as a numerical value and switches display of the light modulation layer based on the numerical value.

公开(公告)号：US20240276852A1

公开(公告)日：2024-08-15

申请号：US18566771

申请日：2021-08-18

Applicant: Sharp Display Technology Corporation

Inventor： Youhei NAKANISHI

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/35

CPC classification number: H10K59/8791 ,  H10K59/122 ,  H10K59/80518 ,  H10K59/353

Abstract: A display device includes: a base substrate layer; a thin film transistor layer provided on the base substrate layer; and a light-emitting element layer provided on the thin film transistor layer, the light-emitting element layer including a plurality of pixel electrodes, a common edge cover, a plurality of light-emitting function layers, and a common electrode layered in order corresponding to a plurality of subpixels constituting a display region, wherein the edge cover covers a peripheral edge portion of each of the pixel electrodes, in each of the subpixels, a portion of the plurality of pixel electrodes exposed from the edge cover constitutes a light-emitting region, and a portion of the plurality of pixel electrodes overlapping the edge cover constitutes a non-light-emitting region, and a reflective surface having an uneven shape is provided in the non-light-emitting region.

公开(公告)号：US20240276795A1

公开(公告)日：2024-08-15

申请号：US18564814

申请日：2021-07-13

Applicant: Sharp Display Technology Corporation

Inventor： Tadayoshi MIYAMOTO

IPC: H10K59/124 ,  G09G3/3233

CPC classification number: H10K59/124 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861

Abstract: A first TFT includes: a first semiconductor layer formed of polysilicon; and a first gate electrode provided to the first semiconductor layer toward a resin substrate through a first gate insulating film. A second TFT includes: a second semiconductor layer formed of oxide semiconductor and positioned more distant from the resin substrate than the first semiconductor layer; and a second gate electrode provided to the second semiconductor layer across from the resin substrate through a second gate insulating film.

公开(公告)号：US20240274090A1

公开(公告)日：2024-08-15

申请号：US18566949

申请日：2021-07-05

Applicant: Sharp Display Technology Corporation

Inventor： Kaoru YAMAMOTO

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2300/043 ,  G09G2310/0278 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021

Abstract: To realize frame narrowing of a display device that uses a display element driven by a current. A second scanning signal line drive circuit configured to drive second scanning signal lines each connected to a control terminal of a writing control transistor is constituted by a shift register composed of unit circuits equal in number to half a number of the second scanning signal lines. Each of the unit circuits included in the shift register collectively drives two of the second scanning signal lines adjacent to each other. In a period during which a power supply control transistor and a light emission control transistor are maintained in an off state and the writing control transistor is maintained in an on state in first and second pixel circuits connected to the two second scanning signal lines adjacent to each other, a threshold voltage compensation transistor and an initialization transistor in the first pixel circuit and a threshold voltage compensation transistor and an initialization transistor in the second pixel circuit are sequentially set to an on state for a predetermined period each.

公开(公告)号：US20240272737A1

公开(公告)日：2024-08-15

申请号：US18414625

申请日：2024-01-17

Applicant: Sharp Display Technology Corporation

Inventor： Takenori MARUYAMA ,  Shinji YAMAGISHI ,  Takuma YAMAMOTO ,  Kazutoshi KIDA ,  Yasuhiro SUGITA ,  Hiroshi FUKUSHIMA

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0446 ,  G06F2203/04105

Abstract: A touch panel system includes a touch panel including a drive electrode, a position detection electrode, and a pressure detection electrode, and a controller configured to impart a drive signal to the drive electrode and acquire a signal value from each of the position detection electrode and the pressure detection electrode. The controller is configured to detect a touch range by a pointer based on the signal value obtained from the position detection electrode, determine a pressure detection range corresponding to the touch range, of the signal value obtained from the pressure detection electrode, and calculate a magnitude of a pressure by the pointer based on the signal value in the pressure detection range.

公开(公告)号：US20240272471A1

公开(公告)日：2024-08-15

申请号：US18402193

申请日：2024-01-02

Applicant: Sharp Display Technology Corporation

Inventor： Noboru MATSUDA ,  Shinpei Higashida

IPC: G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/133512 ,  G02F1/133514 ,  G02F1/134309

Abstract: A display device includes a light blocking portion and a slit. A portion of an upper layer electrode overlapping a lower layer electrode is provided with a slit extending along a second direction inclined with respect to a first direction. An inclined portion extending along a third direction inclined toward the same side as the second direction with respect to the first direction is included in an end portion, of outer peripheral end portions of the light blocking portion, adjacent to the slit in the first direction. A second angle of the inclined portion that is an angle formed by the third direction with respect to the first direction is larger than a first angle that is an angle formed by the second direction with respect to the first direction.

公开(公告)号：US20240265887A1

公开(公告)日：2024-08-08

申请号：US18413288

申请日：2024-01-16

Applicant: Sharp Display Technology Corporation

Inventor： Kazuya KONDOH

IPC: G09G3/36 ,  G06F3/14

CPC classification number: G09G3/3648 ,  G06F3/1446 ,  G09G2300/026 ,  G09G2320/0247

Abstract: A liquid crystal display module for a multi-screen display device includes a liquid crystal display panel that includes a first gate driver connected to one ends of a plurality of gate bus lines and a second gate driver connected to other ends of the plurality of gate bus lines, and a control device. The control device receives, from a host computer, an image signal and an arrangement information signal indicating arrangement information of the liquid crystal display panel in the multi-screen display device, generates a gate signal from the image signal, and outputs the gate signal to one or both of the first gate driver and the second gate driver determined based on the arrangement information signal.

公开(公告)号：US20240257774A1

公开(公告)日：2024-08-01

申请号：US18529438

申请日：2023-12-05

Applicant: Sharp Display Technology Corporation

Inventor： Jun NISHIMURA ,  Yoshihito Hara ,  Masaki Maeda ,  Yoshiharu Hirata ,  Hideki Kitagawa ,  Masamitsu Yamanaka ,  Tohru Daitoh

IPC: G09G3/34 ,  G11C19/28

CPC classification number: G09G3/3446 ,  G11C19/28 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08

Abstract: In each of unit circuits that constitute a shift register, a first conduction terminal of a second thin-film transistor that controls the output of an output signal serving as a scanning signal is given a second input clock signal having a amplitude larger than the amplitude of a first input clock signal that is given to a first conduction terminal of a first thin-film transistor that controls the output of an output signal serving as a control signal for controlling another unit circuit. The channel length of the second thin-film transistor is set to be greater than the channel length of the first thin-film transistor, so that the breakdown voltage of the second thin-film transistor is higher than the breakdown voltage of the first thin-film transistor.