公开(公告)号：US20220392965A1

公开(公告)日：2022-12-08

申请号：US17887340

申请日：2022-08-12

Applicant: Apple Inc.

Inventor： Minhyuk Choi ,  Rui Liu ,  Cheng Chen ,  Chin-Wei Lin ,  Sang Y. Youn ,  Shih Chang Chang ,  Tsung-Ting Tsai

IPC: H01L27/32 ,  G09G3/3233 ,  H01L51/52 ,  H01L31/0232

Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have an anode that is coupled to a thin-film transistor pixel circuit for controlling the anode. Transparent windows may be formed in the display. The windows may be formed by replacing data storage capacitors and other pixel circuit structures in a subset of the pixels with transparent window structures, by selectively removing portions of light-emitting diode anodes, and by shifting anodes. An array of electrical components such as an array of light sensors may be aligned with the transparent windows and may be used to measure light passing through the transparent windows.

公开(公告)号：US11417709B2

公开(公告)日：2022-08-16

申请号：US16859904

申请日：2020-04-27

Applicant: Apple Inc.

Inventor： Minhyuk Choi ,  Rui Liu ,  Cheng Chen ,  Chin-Wei Lin ,  Sang Y. Youn ,  Shih Chang Chang ,  Tsung-Ting Tsai

IPC: H01L27/32 ,  G09G3/3233 ,  H01L51/52 ,  H01L31/0232

Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have an anode that is coupled to a thin-film transistor pixel circuit for controlling the anode. Transparent windows may be formed in the display. The windows may be formed by replacing data storage capacitors and other pixel circuit structures in a subset of the pixels with transparent window structures, by selectively removing portions of light-emitting diode anodes, and by shifting anodes. An array of electrical components such as an array of light sensors may be aligned with the transparent windows and may be used to measure light passing through the transparent windows.

公开(公告)号：US11380231B2

公开(公告)日：2022-07-05

申请号：US16644932

申请日：2018-08-31

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Injae Hwang ,  Jesse A. Richmond ,  Jie Won Ryu ,  Junhua Tan ,  Kavinaath Murugan ,  Kingsuk Brahma ,  Shengkui Gao ,  Shiping Shen ,  Sun-Il Chang ,  Myung-Je Cho ,  Yafei Bi ,  Myungjoon Choi ,  Weichuan Yao ,  Chaohao Wang

IPC: G09G3/00 ,  G09G3/3208

Abstract: Electronic devices and methods for compensating for aging or other effects in a display during a non-transmitting state (off state) of the display. Sensing may include emissive element sensing of the display and/or thin film transistor sensing of the display. Compensating for the effects may preserve or increase a uniformity of transmission of the display.

公开(公告)号：US20220181418A1

公开(公告)日：2022-06-09

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 ,  H01L29/786 ,  H01L29/66

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：US20220139315A1

公开(公告)日：2022-05-05

申请号：US17576619

申请日：2022-01-14

Applicant: Apple Inc.

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

IPC: G09G3/3225 ,  G09G3/3233

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：US11257883B2

公开(公告)日：2022-02-22

申请号：US16797408

申请日：2020-02-21

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Stephen S. Poon ,  Warren S. Rieutort-Louis ,  Cheng-Ho Yu ,  ChoongHo Lee ,  Doh-Hyoung Lee ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Vasudha Gupta ,  Younggu Lee

IPC: H01L27/32 ,  G09G3/3233 ,  H01L51/52 ,  G09G3/00 ,  G09G3/3258 ,  G09G3/3291

Abstract: An organic light-emitting diode display may have thin-film transistor circuitry formed on a substrate. The display and substrate may have rounded corners. A pixel definition layer may be formed on the thin-film transistor circuitry. Openings in the pixel definition layer may be provided with emissive material overlapping respective anodes for organic light-emitting diodes. A cathode layer may cover the array of pixels. A ground power supply path may be used to distribute a ground voltage to the cathode layer. The ground power supply path may be formed from a metal layer that is shorted to the cathode layer using portions of a metal layer that forms anodes for the diodes, may be formed from a mesh shaped metal pattern, may have L-shaped path segments, may include laser-deposited metal on the cathode layer, and may have other structures that facilitate distribution of the ground power supply.

公开(公告)号：US11232748B2

公开(公告)日：2022-01-25

申请号：US17222844

申请日：2021-04-05

Applicant: Apple Inc.

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

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

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：US11158259B2

公开(公告)日：2021-10-26

申请号：US17088263

申请日：2020-11-03

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Chih-Wei Yeh ,  Chin-Wei Lin ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Injae Hwang ,  Jie Won Ryu ,  Junhua Tan ,  Paolo Sacchetto ,  Rui Zhang ,  Shengkui Gao ,  Sun-Il Chang ,  Wei H. Yao ,  Howard H. Tang

IPC: G09G3/3233 ,  G09G3/3275

Abstract: An apparatus receives current image frame data and data relating to at least one previous image frame for an electronic display. One or more parameters related to hysteresis of transistors in the electronic display are sensed. A correlation device, such as a look-up table, receives the sensed parameter or parameters and the data relating to one or more image frames, and uses this information, at least in part, to output an appropriate compensation signal for the current image frame data. The compensated current image frame data may then be supplied to the electronic display to reduce or eliminate the effects of hysteresis on the displayed image.

公开(公告)号：US20210305353A1

公开(公告)日：2021-09-30

申请号：US17143939

申请日：2021-01-07

Applicant: Apple Inc.

Inventor： Shinya Ono ,  Chin-Wei Lin ,  Akira Matsudaira ,  Jiun-Jye Chang ,  Jung Yen Huang ,  Pei-En Chang ,  Rungrot Kitsomboonloha ,  Szu-Hsien Lee

IPC: H01L27/32 ,  G09G3/3266 ,  G09G3/3225

Abstract: An electronic device may include a display with pixels formed using light-emitting diodes, thin-film silicon transistors, thin-film semiconducting-oxide transistors, and capacitors. The silicon transistors, semiconducting-transistors, and capacitors may have control terminals that are coupled to gate or routing lines that extend across the face of the display and that are formed in a low resistance source-drain metal routing layer. Forming routing/gate lines using the low resistance source-drain metal routing layer dramatically reduces the resistance of the gate lines, which enables better timing margins for large display panels operating at higher refresh rates.

公开(公告)号：US20210273031A1

公开(公告)日：2021-09-02

申请号：US17321243

申请日：2021-05-14

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Stephen S. Poon ,  Warren S. Rieutort-Louis ,  Cheng-Ho Yu ,  ChoongHo Lee ,  Doh-Hyoung Lee ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Vasudha Gupta ,  Younggu Lee

IPC: H01L27/32 ,  G09G3/3233 ,  H01L51/52 ,  G09G3/00 ,  G09G3/3258 ,  G09G3/3291

Abstract: An organic light-emitting diode display may have thin-film transistor circuitry formed on a substrate. The display and substrate may have rounded corners. A pixel definition layer may be formed on the thin-film transistor circuitry. Openings in the pixel definition layer may be provided with emissive material overlapping respective anodes for organic light-emitting diodes. A cathode layer may cover the array of pixels. A ground power supply path may be used to distribute a ground voltage to the cathode layer. The ground power supply path may be formed from a metal layer that is shorted to the cathode layer using portions of a metal layer that forms anodes for the diodes, may be formed from a mesh shaped metal pattern, may have L-shaped path segments, may include laser-deposited metal on the cathode layer, and may have other structures that facilitate distribution of the ground power supply.