公开(公告)号：US12175907B2

公开(公告)日：2024-12-24

申请号：US18476892

申请日：2023-09-28

Applicant: Apple Inc.

Inventor： Shyuan Yang ,  Cheng-Chih Hsieh ,  Jonathan H Beck ,  Yuchi Che ,  Tsung-Ting Tsai ,  Warren S Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Shih Chang Chang ,  Bhadrinarayana Lalgudi Visweswaran ,  Jae Won Choi ,  Kyounghwan Kim

IPC: G09G3/20 ,  H10K59/131

Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. To mitigate artifacts caused by a light emitter operating through a display, the display may have a higher density of thin-film transistor sub-pixels than emissive sub-pixels. This allows for a region in the display to include emissive sub-pixels but be free of thin-film transistor sub-pixels. The light emitter may operate through this region in the display. Additionally, 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.

公开(公告)号：US20240194106A1

公开(公告)日：2024-06-13

申请号：US18476892

申请日：2023-09-28

Applicant: Apple Inc.

Inventor： Shyuan Yang ,  Cheng-Chih Hsieh ,  Jonathan H. Beck ,  Yuchi Che ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Shih Chang Chang ,  Bhadrinarayana Lalgudi Visweswaran ,  Jae Won Choi ,  Kyounghwan Kim

IPC: G09G3/20 ,  H10K59/131

CPC classification number: G09G3/20 ,  H10K59/131 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2320/0233 ,  G09G2320/0242

Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. To mitigate artifacts caused by a light emitter operating through a display, the display may have a higher density of thin-film transistor sub-pixels than emissive sub-pixels. This allows for a region in the display to include emissive sub-pixels but be free of thin-film transistor sub-pixels. The light emitter may operate through this region in the display. Additionally, 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.

公开(公告)号：US20230171988A1

公开(公告)日：2023-06-01

申请号：US17968280

申请日：2022-10-18

Applicant: Apple Inc.

Inventor： Prashant Mandlik ,  Bhadrinarayana Lalgudi Visweswaran ,  Ankit Mahajan ,  Chia-Hao Chang ,  Christopher E Glazowski ,  David L Wei ,  Hui Lu ,  Takahide Ishii ,  Themistoklis Afentakis ,  Han Liu ,  Cheng-Chih Hsieh ,  Asli Sirman ,  Shih Chang Chang ,  Ko-Wei Chen ,  Shang-Chih Lin ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Jean-Pierre S Guillou

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5253 ,  H01L51/5262 ,  H01L51/5293 ,  H01L27/323

Abstract: An electronic device may have a display such as an organic light-emitting diode display. The 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. A first passivation layer, a first planarization layer, and a second passivation layer may be formed over the cathode. The first and second passivation layers may be formed from inorganic material. A second planarization layer may be formed over the second passivation layer between the second passivation layer and a polarizer. The second planarization layer may planarize the polarizer at the edges of the active area of the display where the polarizer would otherwise have a steep taper. Planarizing the polarizer in this way mitigates undesirable secondary reflections off of the polarizer. The first and second planarization layers may be formed from organic material.

公开(公告)号：US20200335528A1

公开(公告)日：2020-10-22

申请号：US16917601

申请日：2020-06-30

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32

Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.

公开(公告)号：US10763323B2

公开(公告)日：2020-09-01

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：US10741588B2

公开(公告)日：2020-08-11

申请号：US16678599

申请日：2019-11-08

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32 ,  G02F1/1345 ,  H01L29/786

Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.

公开(公告)号：US20200075636A1

公开(公告)日：2020-03-05

申请号：US16678599

申请日：2019-11-08

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/1368 ,  G02F1/1362

Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.

公开(公告)号：US10223975B2

公开(公告)日：2019-03-05

申请号：US14504278

申请日：2014-10-01

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Sang Y. Youn ,  Young Bae Park ,  Chin-Wei Lin

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

Abstract: An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage.

公开(公告)号：US20190006394A1

公开(公告)日：2019-01-03

申请号：US16125973

申请日：2018-09-10

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32 ,  G02F1/1345 ,  H01L29/786

Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.

公开(公告)号：US20180033805A1

公开(公告)日：2018-02-01

申请号：US15727475

申请日：2017-10-06

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1345

CPC classification number: H01L27/1225 ,  G02F1/13452 ,  G02F1/13454 ,  G02F1/13624 ,  G02F1/1368 ,  G02F2001/13685 ,  G02F2202/104 ,  H01L27/1222 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/3262 ,  H01L27/3272 ,  H01L29/7869

Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.