公开(公告)号：US20230197028A1

公开(公告)日：2023-06-22

申请号：US18167600

申请日：2023-02-10

Applicant: Apple Inc.

Inventor： Shin-Hung Yeh ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang

IPC: G09G3/36 ,  G09G3/00 ,  H01L27/12 ,  G02F1/1362

CPC classification number: G09G3/3666 ,  G02F1/136286 ,  G09G3/002 ,  G09G3/3648 ,  H01L27/124 ,  G02F2201/121 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2300/0478 ,  G09G2310/0264 ,  G09G2320/0223

Abstract: A display may have an array of pixels such as liquid crystal display pixels. The display may include short pixel rows that span only partially across the display and full-width pixel rows that span the width of the display. The gate lines coupled to the short pixel rows may extend into the inactive area of the display. Supplemental gate line loading structures may be located in the inactive area of the display to increase loading on the gate lines that are coupled to short pixel rows. The supplemental gate line loading structures may include data lines and doped polysilicon that overlap the gate lines in the inactive area. In displays that combine display and touch functionality into a thin-film transistor layer, supplemental loading structures may be used in the inactive area to increase loading on common voltage lines that are coupled to short rows of common voltage pads.

公开(公告)号：US11619851B2

公开(公告)日：2023-04-04

申请号：US17525118

申请日：2021-11-12

Applicant: Apple Inc.

Inventor： Shin-Hung Yeh ,  Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Chien-Ya Lee ,  Lun Tsai

IPC: G02F1/1362 ,  G09G3/20 ,  H01L27/32

Abstract: To minimize the width of a non-light-emitting border region around an opening in the active area, data lines may be stacked in the border region. Data line portions may be formed using three metal layers in three different planes within the border region. A metal layer that forms a positive power signal distribution path in the active area may serve as a data line portion in the border region. A metal layer may be added in the border region to serve as a data line portion in the border region. Data line signals may also be provided to pixels on both sides of an opening in the active area using supplemental data line paths. A supplemental data line path may be routed through the active area of the display to electrically connect data line segments on opposing sides of an opening within the display.

公开(公告)号：US20230089447A1

公开(公告)日：2023-03-23

申请号：US18074393

申请日：2022-12-02

Applicant: Apple Inc.

Inventor： Shin-Hung Yeh ,  Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Chien-Ya Lee ,  Lun Tsai

IPC: G02F1/1362 ,  G09G3/20 ,  H01L27/32

Abstract: To minimize the width of a non-light-emitting border region around an opening in the active area, data lines may be stacked in the border region. Data line portions may be formed using three metal layers in three different planes within the border region. A metal layer that forms a positive power signal distribution path in the active area may serve as a data line portion in the border region. A metal layer may be added in the border region to serve as a data line portion in the border region. Data line signals may also be provided to pixels on both sides of an opening in the active area using supplemental data line paths. A supplemental data line path may be routed through the active area of the display to electrically connect data line segments on opposing sides of an opening within the display.

公开(公告)号：US11204534B2

公开(公告)日：2021-12-21

申请号：US17082613

申请日：2020-10-28

Applicant: Apple Inc.

Inventor： Shin-Hung Yeh ,  Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Chien-Ya Lee ,  Lun Tsai

IPC: G02F1/1362 ,  G09G3/20 ,  H01L27/32

Abstract: To minimize the width of a non-light-emitting border region around an opening in the active area, data lines may be stacked in the border region. Data line portions may be formed using three metal layers in three different planes within the border region. A metal layer that forms a positive power signal distribution path in the active area may serve as a data line portion in the border region. A metal layer may be added in the border region to serve as a data line portion in the border region. Data line signals may also be provided to pixels on both sides of an opening in the active area using supplemental data line paths. A supplemental data line path may be routed through the active area of the display to electrically connect data line segments on opposing sides of an opening within the display.

公开(公告)号：US10896642B1

公开(公告)日：2021-01-19

申请号：US16828052

申请日：2020-03-24

Applicant: Apple Inc.

Inventor： Chuang Qian ,  Tsung-Ting Tsai ,  Shyuan Yang ,  Cheng-Chih Hsieh ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Shih-Chang Chang

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G11C19/28

Abstract: Electronic devices may include displays having organic light-emitting diode pixels, display driver circuitry, and gate driver circuitry. To reduce the amount of space occupied in the inactive area of a display by the gate driver circuitry, one or more of the shift registers in the gate driver circuitry may include register circuits that are shared by multiple rows of pixels. Different drivers may use different clock frequencies to ensure synchronous operation of the display even when some register circuits share pixel rows. For increased flexibility in the arrangement of the register circuits in the shift registers, one or more of the shift registers may be split across the active area of the display. In some cases, one of the emission drivers may be omitted from the gate driver circuitry and a single emission driver may provide multiple emission control signals for the pixels.

公开(公告)号：US10748981B1

公开(公告)日：2020-08-18

申请号：US16361933

申请日：2019-03-22

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Bhadrinarayana Lalgudi Visweswaran ,  Abbas Jamshidi Roudbari ,  Jean-Pierre S. Guillou ,  Tyler R. Kakuda

IPC: H01L27/32 ,  G06F3/041 ,  G09G3/3291

Abstract: An organic light-emitting diode display may have thin-film transistor circuitry formed on a substrate. The substrate may have rounded corners, a first tail portion along a lower edge, and a second tail portion along an additional edge. A first plurality of signal paths for the display may be routed to the first tail portion and a second plurality of signal paths for the display may be routed to the second tail portion. The second tail portion may be formed within a pixel-free notched region of the substrate. One or more data lines, power supply lines, touch sensor signal lines, and other signal lines may be routed to the second tail portion. Each tail portion of the substrate may be planar or may be bent. Vertical data lines at the edge of the display may be coupled to data line extensions that are routed through the active area of the display.

公开(公告)号：US20190393295A1

公开(公告)日：2019-12-26

申请号：US16375756

申请日：2019-04-04

Applicant: Apple Inc.

Inventor： Tiffany T. Moy ,  Yuchi Che ,  Seonpil Jang ,  Warren S. Rieutort-Louis ,  Bhadrinarayana Lalgudi Visweswaran ,  Jae Won Choi ,  Abbas Jamshidi Roudbari ,  Myung-Kwan Ryu ,  Hirokazu Yamagata ,  Keisuke Otsu

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52

Abstract: An organic light-emitting diode display may have rounded corners. A negative power supply path may be used to distribute a negative voltage to a cathode layer, while a positive power supply path may be used to distribute a positive power supply voltage to each pixel in the display. The positive power supply path may have a cutout that is occupied by the negative power supply path to decrease resistance of the negative power supply path in a rounded corner of the display. To mitigate reflections caused by the positive power supply path being formed over tightly spaced data lines, the positive power supply path may be omitted in a rounded corner of the display, a shielding layer may be formed over the positive power supply path in the rounded corner, or non-linear gate lines may be formed over the positive power supply path.

公开(公告)号：US10438540B2

公开(公告)日：2019-10-08

申请号：US15701342

申请日：2017-09-11

Applicant: Apple Inc.

Inventor： Shyuan Yang ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis

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

Abstract: Aspects of the subject technology relate to display circuitry. The display circuitry includes gate-in-panel (GIP) control circuitry on opposing sides of a display pixel array. The GIP control circuitry can include scan drivers for each pixel row on both sides of that pixel row, the scan drivers on either side configured for enablement or disablement for single-sided reduced-power operations. The GIP control circuitry can include a single scan driver and a single emission controller for each pixel row, in which the scan driver and emission controller for each row are disposed on opposing sides of the row. The scan drivers for a first subset of the pixel rows can be interleaved with the emission controllers for a different subset of the pixel rows.

公开(公告)号：US20190237010A1

公开(公告)日：2019-08-01

申请号：US16379323

申请日：2019-04-09

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：US10288944B2

公开(公告)日：2019-05-14

申请号：US14923178

申请日：2015-10-26

Applicant: Apple Inc.

Inventor： Abbas Jamshidi Roudbari ,  Shih-Hung Yeh ,  Ting-Kuo Chang

IPC: G02F1/1339 ,  G02F1/1345

Abstract: A display may have an active area surrounded by a border area. The display may be a liquid crystal display having a liquid crystal layer sandwiched between a color filter layer and a thin-film transistor layer. The liquid crystal layer may be retained within the display using a ring of sealant that is dispensed along the border area on the thin-film transistor layer. The thin-film transistor layer may include at least a substrate, a dielectric layer formed over the substrate, a first planarization layer formed on the dielectric layer, and a second planarization layer formed on the first planarization layer. A first continuous trench structure may be formed along the border of the display to help prevent moisture seepage. A second trench structure that is separate from the first trench structure may be formed along the border of the display to help provide proper sealant adhesion.