公开(公告)号：US20200273928A1

公开(公告)日：2020-08-27

申请号：US16872842

申请日：2020-05-12

Applicant: Apple Inc.

Inventor： Yuchi Che ,  Warren S. Rieutort-Louis ,  Tsung-Ting Tsai ,  Abbas Jamshidi Roudbari ,  Jiun-Jye Chang ,  Ting-Kuo Chang ,  Shih Chang Chang ,  Chin-Wei Lin ,  Stephen S. Poon ,  Cheng-Ho Yu ,  ChoongHo Lee ,  Doh-Hyoung Lee ,  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, may be formed from a mesh shaped metal pattern, may have L-shaped path segments, and may include laser-deposited metal on the cathode layer. Data lines may be formed from metal layers in the active area to accommodate the rounded corners of the display.

公开(公告)号：US12185616B1

公开(公告)日：2024-12-31

申请号：US17840472

申请日：2022-06-14

Applicant: Apple Inc.

Inventor： Ricardo A Peterson ,  Yuchi Che ,  Warren S Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Yi Qiao ,  Yue Cui ,  Jean-Pierre S Guillou ,  Shyuan Yang ,  Tsung-Ting Tsai

IPC: H10K59/88 ,  H10K59/35

Abstract: An electronic device may include a display and an optical sensor formed underneath the display. The display may have both a full pixel density region and a pixel removal region with a plurality of high-transmittance areas that overlap the optical sensor. To mitigate reflectance mismatch between the full pixel density region and the pixel removal region, the pixel removal region may include a transition region at one or more edges. In the transition region, one or more components may have a gradual density change between the full pixel density region and a central portion of the pixel removal region. Components that may have a changing density in the transition region include dummy thin-film transistor sub-pixels, dummy anodes, a cathode layer, and a touch sensor metal layer. The transition region may also include anodes that gradually change shape and/or size.

公开(公告)号：US20240381724A1

公开(公告)日：2024-11-14

申请号：US18783762

申请日：2024-07-25

Applicant: Apple Inc.

Inventor： Prashant Mandlik ,  Bhadrinarayana Lalgudi Visweswaran ,  Xuesong Lu ,  Weixin Li ,  Wenbing Hu ,  Yuchi Che ,  Tsung-Ting Tsai ,  Gihoon Choo ,  Shyuan Yang ,  Kuan-Yi Lee ,  An-Di Sheu ,  Chi-Wei Chou ,  Chin-Fu Lee ,  An-Hong Shen ,  Ko-Wei Chen ,  Kyounghwan Kim ,  Jae Won Choi ,  Warren S. Rieutort-Louis ,  Sungki Lee

IPC: H10K59/131 ,  G06F3/041 ,  H10K59/40 ,  H10K59/88 ,  H10K77/10 ,  H10K102/00

Abstract: A display may have a stretchable portion with hermetically sealed rigid pixel islands. A flexible interconnect region may be interposed between the hermetically sealed rigid pixel islands. The hermetically sealed rigid pixel islands may include organic light-emitting diode (OLED) pixels. A conductive cutting structure may have an undercut that causes a discontinuity in a conductive OLED layer to mitigate lateral leakage. The conductive cutting structure may also be electrically connected to a cathode for the OLED pixels and provide a cathode voltage to the cathode. First and second inorganic passivation layers may be formed over the OLED pixels. Multiple discrete portions of an organic inkjet printed layer may be interposed between the first and second inorganic passivation layers.

公开(公告)号：US20240203332A1

公开(公告)日：2024-06-20

申请号：US18509592

申请日：2023-11-15

Applicant: Apple Inc.

Inventor： Mario Miscuglio ,  Kingsuk Brahma ,  Jie Won Ryu ,  Shengkui Gao ,  Yuchi Che ,  Graeme M Williams ,  Yi Qiao ,  Wei H Yao ,  Jean-Pierre S Guillou

IPC: G09G3/3208 ,  G09G3/32

CPC classification number: G09G3/3208 ,  G09G3/32 ,  G09G2300/0828 ,  G09G2320/0276

Abstract: In a display characterized by regions with different pixel responses due, for example, to local pixel density variation, voltage-to-luminance matching may be non-universal. Therefore, in order to avoid visual artifacts that may hinder a desired visualization of displayed content, it may be advantageous to compensate the different gamma responses. In some cases, such as with electronic devices having a single pixel density across the display, optical calibration may be performed to determine voltage-to-luminance matching. However, in electronic devices with local pixel density variations, it may be disadvantageous to perform optical calibrations for each region with a different pixel density. Instead of using two distinct gamma curves which may include dedicated optical calibration, a global nonlinear scaler (GNLS) compensation may be applied. Embodiments may pertain to techniques for applying a per-channel and band-global gamma-to-voltage compensation to reduce or minimize a relative luminance error amongst different responses of display regions.

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：US11778874B2

公开(公告)日：2023-10-03

申请号：US17145815

申请日：2021-01-11

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Yuchi Che ,  Tsung-Ting Tsai ,  Jiun-Jye Chang ,  Shih Chang Chang ,  Ting-Kuo Chang

IPC: H10K59/131 ,  G09G3/3225 ,  G06F3/041 ,  H10K77/10

CPC classification number: H10K59/131 ,  G06F3/0412 ,  G09G3/3225 ,  H10K77/10

Abstract: An electronic device may include a display having display pixels formed in an active area of the display. The display further includes display driver circuitry for driving gate lines that are routed across the display. A hole such as a through hole, optical window, or other inactive region may be formed within the active area of the display. Multiple gate lines carrying the same signal may be merged together prior to being routed around the hole to help minimize the routing line congestion around the border of the hole. Dummy circuits may be coupled to the merged segment portion to help increase the parasitic loading on the merged segments. The hole may have a tapered shape to help maximize the size of the active area. The hole may have an asymmetric shape to accommodate multiple sub-display sensor components.

公开(公告)号：US20230092986A1

公开(公告)日：2023-03-23

申请号：US17802102

申请日：2021-02-02

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Meng-Huan Ho ,  Abbas Jamshidi Roudbari ,  Chih Jen Yang ,  Chin Wei Hsu ,  Jae Won Choi ,  Jean-Pierre S. Guillou ,  Ming Xu ,  Rui Liu ,  Yi Qiao ,  Yu-Wen Liu ,  Yuchi Che ,  Yue Cui

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: An electronic device may include a display and an optical sensor formed underneath the display. A pixel removal region on the display may at least partially overlap with the sensor. The pixel removal region may include a plurality of non-pixel regions each of which is devoid of thin-film transistors. The plurality of non-pixel regions is configured to increase the transmittance of light through the display to the sensor. In addition to removing thin-film transistors in the pixel removal region, additional layers in the display stack-up may be removed. In particular, a cathode layer, polyimide layer, and/or substrate in the display stack-up may be patterned to have an opening in the pixel removal region. A polarizer may be bleached in the pixel removal region for additional transmittance gains. The cathode layer may be removed using laser ablation with a spot laser or blanket illumination.

公开(公告)号：US11295664B2

公开(公告)日：2022-04-05

申请号：US16815875

申请日：2020-03-11

Applicant: Apple Inc.

Inventor： Tong Chen ,  Dong Zheng ,  Graeme M. Williams ,  Mark T. Winkler ,  Warren S. Rieutort-Louis ,  Yuchi Che

IPC: G09G3/3225

Abstract: In some embodiments, a device includes a light-emitting display, and an optical emitter positioned behind the light-emitting display. The optical emitter is configured to emit light through the light-emitting display. A processor is configured to synchronize a first illumination timing of the optical emitter and a second illumination timing of the light-emitting display. In some embodiments, a device includes an optical transceiver processor and a display processor. The display processor is configured to output timing information to a light-emitting display and to the optical transceiver processor, and the optical transceiver processor is configured to cause an optical transceiver to emit or receive light in synchronization with the timing information output by the display processor.

公开(公告)号：US11251259B2

公开(公告)日：2022-02-15

申请号：US16939995

申请日：2020-07-27

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：US20210305350A1

公开(公告)日：2021-09-30

申请号：US17145815

申请日：2021-01-11

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Yuchi Che ,  Tsung-Ting Tsai ,  Jiun-Jye Chang ,  Shih Chang Chang ,  Ting-Kuo Chang

IPC: H01L27/32 ,  G06F3/041 ,  G09G3/3225

Abstract: An electronic device may include a display having display pixels formed in an active area of the display. The display further includes display driver circuitry for driving gate lines that are routed across the display. A hole such as a through hole, optical window, or other inactive region may be formed within the active area of the display. Multiple gate lines carrying the same signal may be merged together prior to being routed around the hole to help minimize the routing line congestion around the border of the hole. Dummy circuits may be coupled to the merged segment portion to help increase the parasitic loading on the merged segments. The hole may have a tapered shape to help maximize the size of the active area. The hole may have an asymmetric shape to accommodate multiple sub-display sensor components.