公开(公告)号：US12125435B2

公开(公告)日：2024-10-22

申请号：US18063659

申请日：2022-12-08

Applicant: Interface Technology (ChengDu) Co., Ltd. ,  Interface Optoelectronics (ShenZhen) Co., Ltd. ,  General Interface Solution Limited

Inventor： De-Fu Chen ,  Po Lun Chen ,  Chun-Ta Chen ,  Ta-Jen Huang ,  Po-Tsun Liu ,  Guang-Ting Zheng ,  Ting-Yi Yi

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2300/0852 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2320/0633 ,  G09G2330/023

Abstract: The present disclosure provides a pixel circuit with pulse width compensation, and the pixel circuit includes a pulse width modulation circuit and a pulse amplitude modulation circuit, and the pulse amplitude modulation circuit is electrically connected to the pulse width modulation circuit. The pulse width modulation circuit includes a P-type pulse width compensation transistor and a first P-type control transistor, and the first P-type control transistor is electrically connected to the P-type pulse width compensation transistor. The pulse amplitude modulation circuit includes a second P-type control transistor, a first capacitor, a P-type driving transistor and a light-emitting element. The second P-type control transistor is electrically connected to the first P-type control transistor. The first capacitor is electrically connected to the second P-type control transistor. The P-type driving transistor is electrically connected to the first capacitor, and the light-emitting element is electrically connected to the P-type driving transistor.

公开(公告)号：US12094433B2

公开(公告)日：2024-09-17

申请号：US17134295

申请日：2020-12-26

Applicant: Intel Corporation

Inventor： Seh Kwa ,  Huan Yu ,  Partha Robert Choudhury

IPC: G09G3/36

CPC classification number: G09G3/3685 ,  G09G3/3674 ,  G09G2310/04 ,  G09G2310/08 ,  G09G2330/023

Abstract: Particular embodiments described herein provide for an electronic device that includes a display and is configured to enable a low power display refresh during a semi-active workload. The electronic device can include a display engine and a display panel and a frame is used by the display panel to generate an image on a display backplane. The display panel includes the display backplane, a plurality of row drivers, a plurality of column drivers, and a timing controller. The timing controller can receive a partial update to a frame being displayed as an image on the display backplane and update the image displayed on the display backplane by activating row drivers and a subset of the plurality of available column drivers, wherein the subset is based on the update.

公开(公告)号：US12067917B2

公开(公告)日：2024-08-20

申请号：US18164280

申请日：2023-02-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soon Gyu Lee ,  Jin Woo Kim ,  Jin A Kang ,  Young Sik Kim

IPC: G09G3/20 ,  G06F3/044 ,  G06V10/141 ,  G06V40/12 ,  G06V40/13 ,  G06V40/40 ,  G06V40/60 ,  G09G5/10

CPC classification number: G09G3/20 ,  G06F3/044 ,  G06V10/141 ,  G06V40/1318 ,  G06V40/1365 ,  G06V40/1382 ,  G06V40/40 ,  G06V40/67 ,  G09G3/2003 ,  G09G5/10 ,  G09G2330/023 ,  G09G2354/00 ,  G09G2360/145

Abstract: A method for driving a display device is performed by the display device. The method includes: displaying a first image including user convenience information through a display panel; generating sensing data corresponding to a fingerprint sensing area by using a photoelectric sensor; and determining whether a sensed fingerprint corresponding to the sensing data is a fake fingerprint by comparing expected sensing light illuminance information based on the first image with sensed light illuminance information of the sensing data. The first image includes a first color pattern in the fingerprint sensing area of the display panel. A fake-determination image pattern includes the first color pattern and a second color pattern different from the first color pattern.

公开(公告)号：US20240266359A1

公开(公告)日：2024-08-08

申请号：US18640136

申请日：2024-04-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Atsushi UMEZAKI

IPC: H01L27/12 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1362 ,  G02F1/1368 ,  G09G3/3266 ,  G09G3/36 ,  G11C19/28 ,  H01H71/02 ,  H01H71/10 ,  H01L27/105 ,  H01L27/13 ,  H01L29/423 ,  H01L29/786 ,  H10K59/121 ,  H10K59/131

CPC classification number: H01L27/124 ,  G02F1/133345 ,  G02F1/136286 ,  G02F1/1368 ,  G09G3/3266 ,  G09G3/3677 ,  G11C19/28 ,  H01H71/02 ,  H01H71/10 ,  H01L27/105 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/1222 ,  H01L27/1251 ,  H01L27/1255 ,  H01L29/78663 ,  H01L29/78678 ,  G02F1/134309 ,  G02F1/13454 ,  G02F1/13624 ,  G02F2202/103 ,  G09G3/3688 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2330/023 ,  H01L27/13 ,  H01L29/42384 ,  H01L29/78696 ,  H10K59/1213 ,  H10K59/131

Abstract: By applying an AC pulse to a gate of a transistor which easily deteriorates, a shift in threshold voltage of the transistor is suppressed. However, in a case where amorphous silicon is used for a semiconductor layer of a transistor, the occurrence of a shift in threshold voltage naturally becomes a problem for a transistor which constitutes a part of circuit that generates an AC pulse. A shift in threshold voltage of a transistor which easily deteriorates and a shift in threshold voltage of a turned-on transistor are suppressed by signal input to a gate electrode of the transistor which easily deteriorates through the turned-on transistor. In other words, a structure for applying an AC pulse to a gate electrode of a transistor which easily deteriorates through a transistor to a gate electrode of which a high potential (VDD) is applied, is included.

公开(公告)号：US20240242691A1

公开(公告)日：2024-07-18

申请号：US18621386

申请日：2024-03-29

Applicant: Intel Corporation

Inventor： Kedar Karanje ,  Satish Koli ,  Sitanshu Nanavati ,  Bhavesh Kumar Arya ,  Shaik Sameeruddin

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G09G2330/023 ,  G09G2340/0435

Abstract: Systems, apparatuses and methods may provide for technology that identifies a parameter of an internal display, populates a lookup table with the parameter and alternative configuration data if the parameter is related to power consumption, detects a trigger condition during operation of the computing system, and reconfigures the internal display from a first state to a second state in response to the trigger condition based on the lookup table and the alternative configuration data, wherein the internal display and/or a system on chip (SoC) associated with the internal display consumes a reduced amount of power in the second state relative to the first state.

公开(公告)号：US20240221635A1

公开(公告)日：2024-07-04

申请号：US18396200

申请日：2023-12-26

Applicant: LG Display Co, Ltd.

Inventor： Sungchang Park ,  Byunghan An ,  Hyungseob Lim

IPC: G09G3/3225 ,  G09G3/36

CPC classification number: G09G3/3225 ,  G09G3/3648 ,  G09G2310/08 ,  G09G2330/023 ,  G09G2340/0435

Abstract: A display device capable of maximizing power consumption reduction of a digital logic circuit during low-speed operation and a method for operating the same are disclosed. The display device includes a display panel; and a plurality of source drivers configured to convert image data into data voltage and provide the data voltage to the display panel, wherein each of the plurality of source drivers includes a reception circuit configured to reconstruct at least one of the image data, control data, and a clock from a data packet received from a timing controller, wherein in a variable refresh rate mode operation, the display device is configured to activate the reception circuit during a refresh frame and to deactivate the reception circuit during a skip frame.

公开(公告)号：US12002529B2

公开(公告)日：2024-06-04

申请号：US18205000

申请日：2023-06-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Atsushi Umezaki

IPC: G11C19/18 ,  G09G3/36 ,  G09G3/3266

CPC classification number: G11C19/184 ,  G09G3/3648 ,  G09G3/3677 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2320/02 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2330/023

Abstract: In a semiconductor device and a shift register, low noise is caused in a non-selection period and a transistor is not always on. First to fourth transistors are provided. One of a source and a drain of the first transistor is connected to a first wire, the other of the source and the drain thereof is connected to a gate electrode of the second transistor, and a gate electrode thereof is connected to a fifth wire. One of a source and a drain of the second transistor is connected to a third wire and the other of the source and the drain thereof is connected to a sixth wire.

公开(公告)号：US12001634B2

公开(公告)日：2024-06-04

申请号：US17919659

申请日：2021-04-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Yoshimoto ,  Kazunori Watanabe ,  Susumu Kawashima ,  Ryo Yamauchi ,  Motoharu Saito ,  Koji Kusunoki ,  Shunpei Yamazaki

IPC: G06F3/042 ,  G06T7/20 ,  G09G3/3233

CPC classification number: G06F3/042 ,  G06T7/20 ,  G09G3/3233 ,  G06T2207/20081 ,  G09G2300/08 ,  G09G2310/08 ,  G09G2330/023

Abstract: A display apparatus capable of performing authentication in a short time is provided. The display apparatus includes a first display portion where first pixels are arranged in a matrix, a second display portion where second pixels are arranged in a matrix, first and second row driver circuits, and a control circuit. Each of the first and the second pixels includes a light-receiving element. The first and the second pixels each have a function of acquiring imaging data by using the light-receiving element. The first and the second row driver circuits each have a function of selecting the first and the second pixels which read out the imaging data. The control circuit has a function of sequentially driving the first and the second row driver circuits in a first mode, and has a function of driving one of the first and the second row driver circuits on the basis of the imaging data in the second mode. Each of the scan rates of the first and the second row driver circuits in the first mode is higher than the scan rate of the first or the second row driver circuit in the second mode.

公开(公告)号：US20240144887A1

公开(公告)日：2024-05-02

申请号：US18385570

申请日：2023-10-31

Applicant: Sheida GOHARDEHI ,  Manoj Sachdev

Inventor： Sheida GOHARDEHI ,  Manoj Sachdev

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2330/023

Abstract: The disclosure is directed at energy and/or power recycling techniques for use with portable displays in order to extend battery life for portable displays.

公开(公告)号：US20240143109A1

公开(公告)日：2024-05-02

申请号：US18408766

申请日：2024-01-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Kensuke YOSHIZUMI

IPC: G06F3/041 ,  G02F1/1333 ,  G06F1/16 ,  G06F3/01 ,  G09G3/00 ,  G09G3/20

CPC classification number: G06F3/041661 ,  G02F1/133305 ,  G06F1/1616 ,  G06F1/1626 ,  G06F1/1637 ,  G06F1/1643 ,  G06F1/1647 ,  G06F1/1649 ,  G06F1/1654 ,  G06F1/1669 ,  G06F3/013 ,  G06F3/041 ,  G06F3/0412 ,  G09G3/035 ,  G09G3/2092 ,  G02F2203/02 ,  G06F2203/04103 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2354/00 ,  G09G2356/00 ,  G09G2380/14

Abstract: A convenient electronic device or the like is provided. The power consumption of an electronic device or the like is reduced. An electronic device or the like having high visibility regardless of the brightness of external light is provided. An electronic device or the like that can display both a smooth moving image and an eye-friendly still image is provided. Such an electronic device is an electronic device including a first display portion, a second display portion, and a control portion. The control portion is configured to make the first display portion and the second display portion individually display two or more of a first image, a second image, and a third image at a time. The first image is displayed with reflected light, the second image is displayed with emitted light, and the third image is displayed with light including both reflected light and emitted light.