公开(公告)号：US20240332319A1

公开(公告)日：2024-10-03

申请号：US18613001

申请日：2024-03-21

Applicant: Apple Inc.

Inventor： Gihoon Choo ,  Abbas Jamshidi Roudbari ,  Guanxiong Liu ,  Jae Won Choi ,  Kyounghwan Kim ,  Shyuan Yang ,  Sungki Lee ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Wan-Ching Hsu ,  Warren S Rieutort-Louis ,  Yishan Liu ,  Zhe Hua

IPC: H01L27/12 ,  H01L25/16 ,  H01L25/18 ,  H01L23/00 ,  H01L23/498

CPC classification number: H01L27/1248 ,  H01L25/167 ,  H01L25/18 ,  H01L27/1259 ,  H01L23/4985 ,  H01L24/16 ,  H01L24/32 ,  H01L24/73 ,  H01L27/124 ,  H01L2224/16145 ,  H01L2224/32227 ,  H01L2224/73203 ,  H01L2924/1426

Abstract: An electronic device may include a substrate, an array of display pixels formed on the substrate, first conductive contacts on the substrate, second conductive contacts on the substrate, a flexible printed circuit that is attached to the first conductive contacts, a display driver integrated circuit that is attached to the second conductive contacts, and conductive traces that electrically connect the first conductive contacts to the second conductive contacts. A dielectric layer may cover at least the sidewalls of the conductive traces to protect the conductive traces from damage by an etchant. Subsequently, some or all of the dielectric layer may be removed to prevent damage caused by moisture ingress into the cladding layer.

公开(公告)号：US11818912B2

公开(公告)日：2023-11-14

申请号：US16670071

申请日：2019-10-31

Applicant: Apple Inc.

Inventor： Tsung-Ting Tsai ,  Abbas Jamshidi Roudbari ,  Chuan-Sheng Wei ,  HanChi Ting ,  Jae Won Choi ,  Jianhong Lin ,  Nai-Chih Kao ,  Shih Chang Chang ,  Shin-Hung Yeh ,  Takahide Ishii ,  Ting-Kuo Chang ,  Yu Hung Chen ,  Yu-Wen Liu ,  Yu-Chuan Pai ,  Andrew Lin

IPC: H10K50/84 ,  H10K71/00 ,  H10K71/18 ,  H10K59/12 ,  H10K59/124

CPC classification number: H10K50/841 ,  H10K59/12 ,  H10K71/00 ,  H10K71/18 ,  H10K59/124 ,  H10K71/821

Abstract: A display may have organic light-emitting diode pixels formed from thin-film circuitry. The thin-film circuitry may be formed in thin-film transistor (TFT) layers and the organic light-emitting diodes may include anodes and cathodes and an organic emissive layer formed over the TFT layers between the anodes and cathodes. The organic emissive layer may be formed via chemical evaporation techniques. The display may include moisture blocking structures such as organic emissive layer disconnecting structures that introduce one or more gaps in the organic emissive layer during evaporation so that any potential moisture permeating path from the display panel edge to the active area of the display is completely terminated.

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：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：US20220037374A1

公开(公告)日：2022-02-03

申请号：US17502909

申请日：2021-10-15

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：US09799713B2

公开(公告)日：2017-10-24

申请号：US15168601

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Jae Won Choi ,  Shih Chang Chang ,  Young Bae Park ,  ZhiFeng Zhan ,  Chieh-Wei Chen ,  Tsung-Ting Tsai ,  Chin-Wei Lin ,  Paul S. Drzaic

IPC: H01L27/32 ,  H01L51/52 ,  H01L27/12

CPC classification number: H01L27/3258 ,  H01L27/1248 ,  H01L27/3246 ,  H01L51/5253

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. A planarization layer may be interposed between the thin-film transistor circuitry and the organic light-emitting diodes. To protect the organic light-emitting diodes from photoactive compounds that may be outgassed from the planarization layer, an inorganic barrier layer may be interposed between the planarization layer and the organic light-emitting diodes. The inorganic barrier layer may be formed on top of and/or below a pixel definition layer that defines light-emitting zones for the organic light-emitting diodes. In another suitable arrangement, the inorganic barrier layer may itself define light-emitting zones and may be used in place of a polymer-based pixel definition layer. The inorganic barrier layer may include trenches in which the emissive material of the light-emitting diodes is formed.

公开(公告)号：US20170025489A1

公开(公告)日：2017-01-26

申请号：US15168601

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Jae Won Choi ,  Shih Chang Chang ,  Young Bae Park ,  ZhiFeng Zhan ,  Chieh-Wei Chen ,  Tsung-Ting Tsai ,  Chin-Wei Lin ,  Paul S. Drzaic

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3258 ,  H01L27/1248 ,  H01L27/3246 ,  H01L51/5253

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. A planarization layer may be interposed between the thin-film transistor circuitry and the organic light-emitting diodes. To protect the organic light-emitting diodes from photoactive compounds that may be outgassed from the planarization layer, an inorganic barrier layer may be interposed between the planarization layer and the organic light-emitting diodes. The inorganic barrier layer may be formed on top of and/or below a pixel definition layer that defines light-emitting zones for the organic light-emitting diodes. In another suitable arrangement, the inorganic barrier layer may itself define light-emitting zones and may be used in place of a polymer-based pixel definition layer. The inorganic barrier layer may include trenches in which the emissive material of the light-emitting diodes is formed.

Abstract translation: 显示器可以具有由有机发光二极管和薄膜晶体管电路形成的像素阵列。 平坦化层可以介于薄膜晶体管电路和有机发光二极管之间。 为了保护有机发光二极管免受可能从平坦化层脱气的光活性化合物，可以在平坦化层和有机发光二极管之间插入无机阻挡层。 无机阻挡层可以形成在限定有机发光二极管的发光区域的像素限定层的顶部和/或下方。 在另一合适的布置中，无机阻挡层本身可以限定发光区域，并且可以用来代替基于聚合物的像素限定层。 无机阻挡层可以包括其中形成发光二极管的发光材料的沟槽。

公开(公告)号：US20160293884A1

公开(公告)日：2016-10-06

申请号：US14681834

申请日：2015-04-08

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Lalguidi Bhadrinarayana Visweswaran ,  Chih Jen Yang ,  Damien S. Boesch ,  Jae Won Choi ,  Paul S. Drzaic ,  Stephen S. Poon ,  Young Bae Park

IPC: H01L51/52 ,  H05B33/08 ,  G09G3/32 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5253 ,  G09G3/3208 ,  G09G2330/02 ,  G09G2330/04 ,  H01L27/3223 ,  H01L27/3244 ,  H01L27/3258 ,  H01L51/5256 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/566 ,  H01L2251/568 ,  H05B33/0896

Abstract: A display may have thin-film transistor (TFT) circuitry on a substrate. An array of organic light-emitting diodes may be formed on the thin-film transistor circuitry. The display may include inorganic brittle layers and organic and metal layers that are ductile and mechanically robust. To help prevent propagation of cracks and other defects along the edge of the display, the display may be provided with crack stop structures and crack detection circuitry. The crack detection circuitry may include one or more loops that are formed along the periphery of the display. The crack stop structures may include TFT/OLED structures formed in a staggered configuration. At least some of the brittle layers can be removed from the panel edge. An additional adhesion layer may also be formed directly on the substrate to help prevent inorganic layers from debonding from the surface of the substrate.

Abstract translation: 显示器可以在衬底上具有薄膜晶体管（TFT）电路。 可以在薄膜晶体管电路上形成有机发光二极管阵列。 显示器可以包括无机脆性层和有机和金属层，其是延性和机械稳固的。 为了防止沿着显示器边缘的裂纹和其他缺陷的传播，显示器可以设置有裂纹停止结构和裂纹检测电路。 裂纹检测电路可以包括沿着显示器的周边形成的一个或多个环。 裂纹停止结构可以包括以交错构型形成的TFT / OLED结构。 可以从面板边缘去除至少一些脆性层。 还可以在基底上直接形成另外的粘合层，以帮助防止无机层从基底表面脱粘。

公开(公告)号：US20150145849A1

公开(公告)日：2015-05-28

申请号：US14444581

申请日：2014-07-28

Applicant: Apple Inc.

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

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/045

Abstract: A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensation and programming operations. Each display pixel may have five p-type transistor and two capacitors. One of the five p-type transistors may serve as the drive transistor and may be compensated using the remaining four of the p-type transistors and the two capacitors. A first of the capacitors may be coupled between the gate and source of the drive transistor. A second of the capacitors may have a terminal coupled to the source. Alternatively, each display pixel may have six p-type transistors and a single capacitor. The six p-type transistors may include a drive transistor having a gate coupled to the capacitor.

Abstract translation: 显示器可以具有有机发光二极管显示像素阵列。 每个显示像素可以具有在驱动晶体管的控制下发光的发光二极管。 每个显示像素还可以具有用于补偿和编程操作的控制晶体管。 每个显示像素可以具有五个p型晶体管和两个电容器。 五个p型晶体管中的一个可以用作驱动晶体管，并且可以使用剩余的四个p型晶体管和两个电容器进行补偿。 电容器中的第一个可以耦合在驱动晶体管的栅极和源极之间。 电容器中的第二个可以具有耦合到源极的端子。 或者，每个显示像素可以具有六个p型晶体管和单个电容器。 六个p型晶体管可以包括具有耦合到电容器的栅极的驱动晶体管。

公开(公告)号：US20250008799A1

公开(公告)日：2025-01-02

申请号：US18667776

申请日：2024-05-17

Applicant: Apple Inc.

Inventor： Shyuan Yang ,  Abbas Jamshidi Roudbari ,  Gihoon Choo ,  Jae Won Choi ,  Jean-Pierre S. Guillou ,  Jonglo Park ,  Kyounghwan Kim ,  Ricardo A. Peterson ,  Sungki Lee ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Yi Qiao ,  Yuchi Che ,  Yue Cui ,  Yue Jack Chu ,  Zhizhen Ma

IPC: H10K59/131 ,  H10K59/121 ,  H10K59/65

Abstract: A display may include an active area with a first region and a second region. The first region may overlap an input-output component such as a camera and may have a higher transparency than the second region. The first region may have a lower pixel density than the second region. Signal lines that pass through the first region may have transparent portions that overlap the first region and opaque portions that overlap the second region. To mitigate artifacts caused by high resistance of the transparent portions of the signal lines, the signal lines may include supplemental opaque portions that are electrically connected in parallel to the transparent portions and that are routed through the second region around the first region.