公开(公告)号：US12205531B2

公开(公告)日：2025-01-21

申请号：US18306690

申请日：2023-04-25

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Vasudha Gupta ,  Shinya Ono ,  Tsung-Ting Tsai ,  Shyuan Yang

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3291

Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.

公开(公告)号：US12154515B2

公开(公告)日：2024-11-26

申请号：US17990510

申请日：2022-11-18

Applicant: Apple Inc.

Inventor： Shinya Ono ,  Chin-Wei Lin ,  Zino Lee ,  Chun-Chieh Lin ,  Chen-Ming Chen

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A display may include an array of pixels. Each pixel in the array includes an organic light-emitting diode coupled to a drive transistor, a data loading transistor, a first capacitor for storing data charge, and a second capacitor. During a data programming phase, the data loading transistor may be activated to load in a data value onto the first capacitor. After the data programming phase, the second capacitor may be configured to receive a lower voltage, which extends a threshold voltage sampling time for the pixel. Configured and operated in this way, the temperature luminance sensitivity of the display can be reduced.

公开(公告)号：US12142220B2

公开(公告)日：2024-11-12

申请号：US18532835

申请日：2023-12-07

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Shih Chang Chang ,  Shinya Ono

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/12 ,  H01L29/786

Abstract: A display may have an array of pixels each of which has a light-emitting diode such as an organic light-emitting diode. A drive transistor and an emission transistor may be coupled in series with the light-emitting diode of each pixel between a positive power supply and a ground power supply. The pixels may include first and second switching transistors. A data storage capacitor may be coupled between a gate and source of the drive transistor in each pixel. Signal lines may be provided in columns of pixels to route signals such as data signals, sensed drive currents from the drive transistors, and predetermined voltages between display driver circuitry and the pixels. The switching transistors, emission transistors, and drive transistors may include semiconducting-oxide transistors and silicon transistors and may be n-channel transistors or p-channel transistors.

公开(公告)号：US20240312421A1

公开(公告)日：2024-09-19

申请号：US18673126

申请日：2024-05-23

Applicant: Apple Inc.

Inventor： Shinya Ono ,  Chin-Wei Lin ,  Pei-En Chang ,  Dongqi Zheng

IPC: G09G3/3266 ,  G09G3/3233 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G11C19/28 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08

Abstract: A display may include an array of pixels that receive control signals from a chain of gate drivers. Each gate driver may include a shift register subcircuit and an output buffer subcircuit. The shift register subcircuit may include a first set of transistors at least partially controlled by one or more shift register clock signals. The output buffer subcircuit may include a second set of transistors at least partially controlled by one or more output buffer clock signals. The output buffer clock signals can toggle independently from the shift register clock signals. Operated in this way, the shift register clock signals can have pulse widths optimized for stability while the output buffer clock signals can have pulse widths optimized for speed.

公开(公告)号：US12096657B2

公开(公告)日：2024-09-17

申请号：US17504230

申请日：2021-10-18

Applicant: Apple Inc.

Inventor： Jung Yen Huang ,  Shinya Ono ,  Chin-Wei Lin ,  Akira Matsudaira ,  Cheng Min Hu ,  Chih Pang Chang ,  Ching-Sang Chuang ,  Gihoon Choo ,  Jiun-Jye Chang ,  Po-Chun Yeh ,  Shih Chang Chang ,  Yu-Wen Liu ,  Zino Lee

IPC: H01L27/32 ,  H01L29/66 ,  H01L29/786 ,  H10K59/121 ,  H10K59/12

CPC classification number: H10K59/1213 ,  H01L29/66742 ,  H01L29/7869 ,  H10K59/1216 ,  H10K59/1201

Abstract: A display may include an array of pixels. Each pixel in the array includes an organic light-emitting diode coupled to associated semiconducting oxide transistors. The semiconducting oxide transistors may exhibit different device characteristics. Some of the semiconducting oxide transistors may be formed using a first oxide layer formed from a first semiconducting oxide material using first processing steps, whereas other semiconducting oxide transistors are formed using a second oxide layer formed from a second semiconducting oxide material using second processing steps different than the first processing steps. The display may include three or more different semiconducting oxide layers formed during different processing steps.

公开(公告)号：US20240038159A1

公开(公告)日：2024-02-01

申请号：US18483282

申请日：2023-10-09

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Shyuan Yang ,  Chuang Qian ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang

IPC: G09G3/3225 ,  G09G3/3233

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2310/061 ,  G09G2320/064 ,  G09G2320/0252 ,  G09G2320/0214 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2300/0417 ,  G09G2300/043 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2310/06 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2310/0297 ,  G09G2340/0435

Abstract: A display may have an array of organic light-emitting diode display pixels operating at a low refresh rate. Each display pixel may have six thin-film transistors and one capacitor. One of the six transistors may serve as the drive transistor and may be compensated using the remaining five transistors and the capacitor. One or more on-bias stress operations may be applied before threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and on-bias stress operations may be inserted during vertical blanking periods to reduce flicker and maintain balance and may also be inserted between successive data refreshes to improve first frame performance. Two different emission signals controlling each pixel may be toggled together using a pulse width modulation scheme to help provide darker black levels.

公开(公告)号：US11854490B1

公开(公告)日：2023-12-26

申请号：US17879642

申请日：2022-08-02

Applicant: Apple Inc.

Inventor： Levent Erdal Aygun ,  Chin-Wei Lin ,  Yun Wang ,  Xin Lin ,  Aida R Colon-Berrios ,  Shih Chang Chang ,  Fan Gui ,  Mohammad Reza Esmaeili Rad ,  Ran Tu ,  Warren S Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Bhadrinarayana Lalgudi Visweswaran ,  Cheng-Chih Hsieh ,  Ricardo A Peterson ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Yuchi Che

IPC: G09G3/3266 ,  G09G3/00 ,  H01L27/12

CPC classification number: G09G3/3266 ,  G09G3/007 ,  H01L27/124 ,  G09G2300/0452 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2320/0626 ,  G09G2330/021

Abstract: To reduce the amount of space occupied in the inactive area of a display by gate driver circuitry, at least a portion of the gate driver circuitry may be positioned in the active area of the display. To accommodate the gate driver circuitry, emissive sub-pixels may be laterally shifted relative to corresponding thin-film transistor sub-pixels. This allows for the thin-film transistor sub-pixels to be grouped adjacent to the central area of the active area, leaving room along an edge of the active area to accommodate one or more additional display components such as gate driver circuitry or fanout portions of data lines.

公开(公告)号：US11733807B2

公开(公告)日：2023-08-22

申请号：US15761603

申请日：2016-07-18

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Chin-Wei Lin ,  Tsung-Ting Tsai

IPC: G06F3/042 ,  G06F3/041 ,  G09G3/3233 ,  G09G3/36 ,  G09G3/3258

CPC classification number: G06F3/0421 ,  G06F3/042 ,  G06F3/0412 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3659 ,  G09G2310/0297 ,  G09G2320/0295 ,  G09G2360/148

Abstract: A display may have an array of pixels. The pixels may contain light-emitting diodes. When it is desired to use the display to operate as a light sensor, some of the light-emitting diodes may be forward biased to emit light while some of the light-emitting diodes are reversed biased to detect the emitted light after the emitted light has reflected from an external object. During light sensing operations, one or more areas of the display may be temporarily deactivated so that the light-sensing pixels may measure the reflected light. Vertical lines may serve both as data loading lines and as current sensing lines. Currents may be sensed during drive transistor current compensation and during light sensing. The vertical lines may load signals into the pixels that forward bias the light-emitting diodes to emit light when it is desired to display images for a user.

公开(公告)号：US20230260452A1

公开(公告)日：2023-08-17

申请号：US18306690

申请日：2023-04-25

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Vasudha Gupta ,  Shinya Ono ,  Tsung-Ting Tsai ,  Shyuan Yang

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2320/0247 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0297

Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.

公开(公告)号：US11670219B2

公开(公告)日：2023-06-06

申请号：US17204803

申请日：2021-03-17

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Vasudha Gupta ,  Shinya Ono ,  Tsung-Ting Tsai ,  Shyuan Yang

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0297 ,  G09G2310/061 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2340/0435

Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.