公开(公告)号：US12108632B2

公开(公告)日：2024-10-01

申请号：US18193999

申请日：2023-03-31

Applicant: Apple Inc.

Inventor： Jaein Choi ,  Hairong Tang ,  Gloria Wong ,  Sunggu Kang ,  Younggu Lee ,  Gwanwoo Park ,  Chun-Yao Huang ,  Andrew Lin ,  Cheuk Chi Lo ,  Enkhamgalan Dorjgotov ,  Michael Slootsky ,  Rui Liu ,  Wendi Chang ,  Cheng Chen ,  Yusuke Fujino

IPC: H10K59/122 ,  H10K50/19

CPC classification number: H10K59/122 ,  H10K50/19

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have an undercut to disrupt continuity of some but not all of the OLED layers. The undercut may be defined by three discrete portions of the pixel definition layer. The undercut may result in a void that is interposed between different portions of the OLED layers to break a leakage path formed by the OLED layers.

公开(公告)号：US11798481B2

公开(公告)日：2023-10-24

申请号：US17164758

申请日：2021-02-01

Applicant: Apple Inc.

Inventor： Yingkan Lin ,  Tien-Chien Kuo ,  Bilin Wang ,  Kanghoon Jeon ,  Ivan Knez ,  Chun-Yao Huang

IPC: G09G3/3258 ,  G09G3/32 ,  G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3258 ,  G09G3/32 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0439 ,  G09G2300/0842 ,  G09G2310/0243 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/064 ,  G09G2350/00 ,  G09G2360/12 ,  G09G2370/00

Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.

公开(公告)号：US20230240100A1

公开(公告)日：2023-07-27

申请号：US18193999

申请日：2023-03-31

Applicant: Apple Inc.

Inventor： Jaein Choi ,  Hairong Tang ,  Gloria Wong ,  Sunggu Kang ,  Younggu Lee ,  Gwanwoo Park ,  Chun-Yao Huang ,  Andrew Lin ,  Cheuk Chi Lo ,  Enkhamgalan Dorjgotov ,  Michael Slootsky ,  Rui Liu ,  Wendi Chang ,  Cheng Chen

IPC: H10K59/122 ,  H10K50/19

CPC classification number: H10K59/122 ,  H10K50/19

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have an undercut to disrupt continuity of some but not all of the OLED layers. The undercut may be defined by three discrete portions of the pixel definition layer. The undercut may result in a void that is interposed between different portions of the OLED layers to break a leakage path formed by the OLED layers.

公开(公告)号：US20210158759A1

公开(公告)日：2021-05-27

申请号：US17164758

申请日：2021-02-01

Applicant: Apple Inc.

Inventor： Yingkan Lin ,  Tien-Chien Kuo ,  Bilin Wang ,  Kanghoon Jeon ,  Ivan Knez ,  Chun-Yao Huang

IPC: G09G3/3258 ,  G09G3/32

Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.

公开(公告)号：US10909926B2

公开(公告)日：2021-02-02

申请号：US16399805

申请日：2019-04-30

Applicant: Apple Inc.

Inventor： Yingkan Lin ,  Tien-Chien Kuo ,  Bilin Wang ,  Kanghoon Jeon ,  Ivan Knez ,  Chun-Yao Huang

IPC: G09G3/3258 ,  G09G3/32 ,  G09G3/3275 ,  G09G3/3266

Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.

公开(公告)号：US20200312930A1

公开(公告)日：2020-10-01

申请号：US16745055

申请日：2020-01-16

Applicant: Apple Inc.

Inventor： Jaein Choi ,  Hairong Tang ,  Gloria Wong ,  Sunggu Kang ,  Younggu Lee ,  Gwanwoo Park ,  Chun-Yao Huang ,  Andrew Lin ,  Cheuk Chi Lo ,  Enkhamgalan Dorjgotov ,  Michael Slootsky ,  Rui Liu ,  Wendi Chang ,  Cheng Chen

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have an undercut to disrupt continuity of some but not all of the OLED layers. The undercut may be defined by three discrete portions of the pixel definition layer. The undercut may result in a void that is interposed between different portions of the OLED layers to break a leakage path formed by the OLED layers.

公开(公告)号：US10755638B2

公开(公告)日：2020-08-25

申请号：US16325236

申请日：2017-08-10

Applicant: Apple Inc.

Inventor： Cheuk Chi Lo ,  Chin-Wei Lin ,  Chun-Yao Huang ,  Shih Chang Chang

IPC: G09G3/3233 ,  G09G3/3291 ,  H01L27/32

Abstract: A display has rows and columns of pixels (22). A data line (Dn) in each column provides image data signals to the pixels of that column. Each row has first and second control lines (select[m], monitor[m]) coupled to the gates of first and second respective transistors (SE, MO) in each pixel. A third transistor in each pixel serves as a drive transistor (DR) and is coupled in series with a light-emitting diode (30) between positive and ground power supply voltages (VDD, VSS). A display driver circuitry in the display characterizes each of the light-emitting diodes in a column using the data line in an adjacent column from that light-emitting diode. Each of the drive transistors in a column is characterized using the data line in that column and the data line in an adjacent column.

公开(公告)号：US10268295B2

公开(公告)日：2019-04-23

申请号：US15304494

申请日：2014-10-01

Applicant: APPLE INC.

Inventor： Byung Duk Yang ,  Chun-Yao Huang ,  Kyung-Wook Kim ,  Shih-Chang Chang ,  Szuhsien Lee ,  Yong Kwan Kim

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch screen having layers. The touch screen can include a substrate upon which the layers of the touch screen are disposed, and a touch region including a touch pixel electrode, a first display sub-pixel and a second display sub-pixel. The touch screen can also include a sense connection coupled to touch sensing circuitry. An intermediate connection can be disposed between the touch pixel electrode and the sense connection, and can be coupled to the sense connection at the first display sub-pixel and the touch pixel electrode at the second display sub-pixel. In some examples, the sense connection can be disposed at least partially underneath a structure in the first display sub-pixel, such as a data line. In some examples, the intermediate connection can be comprised of a same material type as a structure in the first display sub-pixel, such as a gate line material.

公开(公告)号：US20170307950A1

公开(公告)日：2017-10-26

申请号：US15643367

申请日：2017-07-06

Applicant: Apple Inc.

Inventor： Patrick B. Bennett ,  Kwang Soon Park ,  Chun-Yao Huang ,  Byung Duk Yang ,  Shih Chang Chang

IPC: G02F1/1362 ,  H01L27/12 ,  G09G3/20

CPC classification number: G02F1/136286 ,  G02F2001/13456 ,  G02F2001/13629 ,  G09G3/20 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/08 ,  G09G2310/0264 ,  G09G2310/0278 ,  G09G2310/0281 ,  G09G2320/02 ,  G09G2320/0209 ,  G09G2320/0219 ,  H01L27/124

Abstract: A display may have an array of pixels arranged in rows and columns. Display driver circuitry may be provided along an edge of the display. Data lines that are associated with columns of the pixels may be used to distribute data from the display driver circuitry to the pixels. Gate lines in the display may each have a horizontal straight portion that extends along a respective row of the pixels and may each have one or more non-horizontal segments such as zigzag segments. The non-horizontal portion of each gate line may be connected to the horizontal straight portion of the gate line by a via. The non-horizontal portions may each have portions that are overlapped by portions of the data lines. Dummy gate line structures may be provided on the display that are not coupled to any of the pixels in the display.

公开(公告)号：US09779664B2

公开(公告)日：2017-10-03

申请号：US14472272

申请日：2014-08-28

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Szu-Hsien Lee ,  Paolo Sacchetto ,  Shih Chang Chang ,  Chun-Yao Huang ,  Paul S. Drzaic

IPC: G09G3/36 ,  G09G3/3266 ,  G09G3/20 ,  G09G3/3225

CPC classification number: G09G3/3266 ,  G09G3/2044 ,  G09G3/3225 ,  G09G3/3648 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2340/0435

Abstract: This application relates to methods and apparatus for refreshing a display device at various frequencies. Specifically, multiple areas of the display device can be refreshed concurrently at different frequencies. In this way, when static content is being displayed in certain areas of the display device, those certain areas can be refreshed at a lower rate than areas displaying dynamic content such as video or animation. By refreshing at lower rates, the energy consumed by the display device and subsystems associated with the display device can be reduced. Additionally, processes for reducing flicker when refreshing the display device at different refresh rates are disclosed herein.