公开(公告)号：US11211020B2

公开(公告)日：2021-12-28

申请号：US16369319

申请日：2019-03-29

Applicant: Apple Inc.

Inventor： Shinya Ono ,  Zino Lee ,  Gihoon Choo ,  Hassan Edrees ,  Chin-Wei Lin

IPC: G09G3/36 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display may have rows and columns of pixels. Gate lines may be used to supply gate signals to rows of the pixels. Data lines may be used to supply data signals to columns of the pixels. The data lines may include alternating even and odd data lines. Data lines may be organized in pairs each of which includes one of the odd data lines and an adjacent one of the even data lines. Demultiplexer circuitry may be configured dynamically during data loading and pixel sensing operations. During data loading, data from display driver circuitry may be supplied, alternately to odd pairs of the data lines and even pairs of the data lines. During sensing, the demultiplexer circuitry may couple a pair of the even data lines to sensing circuitry in the display driver circuitry and then may couple a pair of the odd data lines to the sensing circuitry.

公开(公告)号：US11158256B2

公开(公告)日：2021-10-26

申请号：US16762846

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Fan Gui ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Jie Won Ryu ,  Junhua Tan ,  Kingsuk Brahma ,  Majid Gharghi ,  Mohammad Reza Esmaeili Rad ,  Shinya Ono ,  Yun Wang ,  Zino Lee

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A display may include an array of organic light-emitting diode display pixels having transistors characterized by threshold voltages subject to transistor variations. Compensation circuitry may be used to sense a current from selected display pixels. A display pixel may include a drive transistor, a gate setting transistor for driving a reference voltage onto the gate terminal of the drive transistor, a data loading and current sensing transistor for connecting the drive transistor to a data/current-sensing line, a light-emitting diode, an emission control transistor coupled between the drive transistor and the diode, and an anode resetting transistor for selectively resetting the anode terminal of the diode. During in-frame current sensing operations, the emission control transistor may be turned off to decouple the drive transistor from the diode, thereby blocking off any residue current and lateral leakage current that may be present at the diode.

公开(公告)号：US20200051500A1

公开(公告)日：2020-02-13

申请号：US16536221

申请日：2019-08-08

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Shinya Ono ,  Zino Lee

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A display may include an array of organic light-emitting diode display pixels having transistors characterized by threshold voltages subject to transistor variations. Compensation circuitry may be used to sense a current from selected display pixels. A display pixel may include a drive transistor, a gate setting transistor for driving a reference voltage onto the gate terminal of the drive transistor, a data loading and current sensing transistor for connecting the drive transistor to a data/current-sensing line, a light-emitting diode, an emission control transistor coupled between the drive transistor and the diode, and an anode resetting transistor for selectively resetting the anode terminal of the diode. During pixel conditioning and current sensing operations, the anode resetting transistor may be constantly turned on to ensure that there is no voltage perturbation at the source terminal of the drive transistor, which can help prevent hysteresis-induced current sensing error.

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：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：US20230080809A1

公开(公告)日：2023-03-16

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：US11282462B2

公开(公告)日：2022-03-22

申请号：US17062786

申请日：2020-10-05

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Shinya Ono ,  Zino Lee ,  Yun Wang ,  Fan Gui

IPC: G09G3/3258 ,  H01L27/32 ,  H01L29/786

Abstract: A display pixel is provided that is operable to support hybrid compensation scheme having both in-pixel threshold voltage canceling and external threshold voltage compensation. The display may include multiple p-type silicon transistors with at least one n-type semiconducting-oxide transistor and one storage capacitor. An on-bias stress phase may be performed prior to a threshold voltage sampling and data programming phase to mitigate hysteresis and improve first frame response. In low refresh rate displays, a first additional on-bias stress operation can be performed separate from the threshold voltage sampling and data programming phase during a refresh frame and a second additional on-bias stress operation can be performed during a vertical blanking frame. The display pixel may be configured to receive an initialization voltage and an anode reset voltage, either of which can be dynamically tuned to match the stress of the first and second additional on-bias stress operations to minimize flicker.

公开(公告)号：US20210012712A1

公开(公告)日：2021-01-14

申请号：US16762846

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Fan Gui ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Jie Won Ryu ,  Junhua Tan ,  Kingsuk Brahma ,  Majid Gharghi ,  Mohammad Reza Esmaeili Rad ,  Shinya Ono ,  Yun Wang ,  Zino Lee

IPC: G09G3/3233

Abstract: A display may include an array of organic light-emitting diode display pixels having transistors characterized by threshold voltages subject to transistor variations. Compensation circuitry may be used to sense a current from selected display pixels. A display pixel may include a drive transistor, a gate setting transistor for driving a reference voltage onto the gate terminal of the drive transistor, a data loading and current sensing transistor for connecting the drive transistor to a data/current-sensing line, a light-emitting diode, an emission control transistor coupled between the drive transistor and the diode, and an anode resetting transistor for selectively resetting the anode terminal of the diode. During in-frame current sensing operations, the emission control transistor may be turned off to decouple the drive transistor from the diode, thereby blocking off any residue current and lateral leakage current that may be present at the diode.

公开(公告)号：US10885850B2

公开(公告)日：2021-01-05

申请号：US16716911

申请日：2019-12-17

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Shinya Ono ,  Zino Lee ,  Yun Wang ,  Fan Gui

IPC: G09G3/3258 ,  H01L27/32 ,  H01L29/786

Abstract: A display pixel is provided that is operable to support hybrid compensation scheme having both in-pixel threshold voltage canceling and external threshold voltage compensation. The display may include multiple p-type silicon transistors with at least one n-type semiconducting-oxide transistor and one storage capacitor. An on-bias stress phase may be performed prior to a threshold voltage sampling and data programming phase to mitigate hysteresis and improve first frame response. In low refresh rate displays, a first additional on-bias stress operation can be performed separate from the threshold voltage sampling and data programming phase during a refresh frame and a second additional on-bias stress operation can be performed during a vertical blanking frame. The display pixel may be configured to receive an initialization voltage and an anode reset voltage, either of which can be dynamically tuned to match the stress of the first and second additional on-bias stress operations to minimize flicker.

公开(公告)号：US10861389B2

公开(公告)日：2020-12-08

申请号：US16536221

申请日：2019-08-08

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Shinya Ono ,  Zino Lee

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A display may include an array of organic light-emitting diode display pixels having transistors characterized by threshold voltages subject to transistor variations. Compensation circuitry may be used to sense a current from selected display pixels. A display pixel may include a drive transistor, a gate setting transistor for driving a reference voltage onto the gate terminal of the drive transistor, a data loading and current sensing transistor for connecting the drive transistor to a data/current-sensing line, a light-emitting diode, an emission control transistor coupled between the drive transistor and the diode, and an anode resetting transistor for selectively resetting the anode terminal of the diode. During pixel conditioning and current sensing operations, the anode resetting transistor may be constantly turned on to ensure that there is no voltage perturbation at the source terminal of the drive transistor, which can help prevent hysteresis-induced current sensing error.