公开(公告)号：EP3907729A1

公开(公告)日：2021-11-10

申请号：EP21183438.7

申请日：2017-01-19

Applicant: Apple Inc.

Inventor： LIN, Chin-Wei ,  POON, Stephen S. ,  RIEUTORT-LOUIS, Warren S. ,  YU, Cheng-Ho ,  LEE, ChoongHo ,  LEE, Doh-Hyoung ,  CHANG, Ting-Kuo ,  GUPTA, Vasudha ,  LEE, Younggu

IPC: G09G3/3233 ,  H01L27/32

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 for the diodes, may be formed from a mesh shaped metal pattern, may have L-shaped path segments, may include laser-deposited metal on the cathode layer, and may have other structures that facilitate distribution of the ground power supply.

公开(公告)号：WO2018175175A1

公开(公告)日：2018-09-27

申请号：PCT/US2018/022408

申请日：2018-03-14

Applicant: APPLE INC.

Inventor： LIN, Chin-Wei ,  ONO, Shinya ,  GUPTA, Vasudha

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A display may include an array of organic light-emitting diode display pixels having transistors characterized by threshold voltages subject to transistor variations. Compensation circuitry may be used to measure a transistor threshold voltage for a pixel. The threshold voltage may be sampled by controlling the pixel to sample the threshold voltage onto a capacitor at the pixel. The pixel may include at least one semiconducting-oxide transistor, silicon transistors, and a light-emitting diode. The diode may be coupled to a data line that can be used for both data loading and compensation sensing operations. Reset operations may be performed after data programming and before emission to reset the anode voltage for the diode.

公开(公告)号：WO2016053721A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/051789

申请日：2015-09-23

Applicant: APPLE INC.

Inventor： LIN, Chin-Wei ,  CHANG, Shih, Chang ,  GUPTA, Vasudha

IPC: G09G3/32 ,  H01L27/15

CPC classification number: H01L27/1225 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0861 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/156 ,  H01L27/3255

Abstract: An electronic device may include a display. The display may be formed by an array of light-emitting diodes mounted to the surface of a substrate. The light-emitting diodes may be inorganic light-emitting diodes formed from separate crystalline semiconductor structures. An array of pixel control circuits may be used to control light emission from the light- emitting diodes. Each pixel control circuit may be used to supply drive signals to a respective set of the light-emitting diodes. The pixel control circuits may each have a silicon integrated circuit that includes transistors such as emission enable transistors and drive transistors for supplying the drive signals and may each have thin-film semiconducting oxide transistors that are coupled to the integrated circuit and that serve as switching transistors.

Abstract translation: 电子设备可以包括显示器。 显示器可以由安装在基板的表面上的发光二极管的阵列形成。 发光二极管可以是由分离的晶体半导体结构形成的无机发光二极管。 可以使用像素控制电路的阵列来控制来自发光二极管的光发射。 每个像素控制电路可用于将驱动信号提供给相应的发光二极管组。 像素控制电路可以各自具有硅集成电路，该硅集成电路包括诸如发射使能晶体管和用于提供驱动信号的驱动晶体管的晶体管，并且每个可以具有耦合到集成电路并用作开关晶体管的薄膜半导体氧化物晶体管 。

公开(公告)号：WO2015142383A1

公开(公告)日：2015-09-24

申请号：PCT/US2014/059694

申请日：2014-10-08

Applicant: APPLE INC.

Inventor： YU, Da ,  CHOI, Jae, Won ,  KIM, Sang, Ha ,  GUPTA, Vasudha ,  PARK, Young, Bae

IPC: G06F1/16

CPC classification number: H01L27/3244 ,  H01L27/3276 ,  H01L51/5237 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/56 ,  H01L2251/5338

Abstract: An electronic device may have a flexible display with portions that can be bent. The display may include an array of display pixels in an active area. Contact pads may be formed in an inactive area of the display. Display circuitry in the active area may exhibit a given stack height, whereas display circuitry in the inactive area may exhibit a stack height that is less than the given stack height. In particular, the contact pads may be formed directly on a multi-buffer layer that sits directly on a flexible display substrate. Passivation material may be selectively formed only at the edges of the contact pad on the multi-buffer layer. The multi-buffer layer may be formed at a distance from the edge of the flexible display substrate to minimize cracking in the multi-buffer layer.

Abstract translation: 电子设备可以具有可弯曲部分的柔性显示器。 显示器可以包括活动区域中的显示像素阵列。 接触焊盘可以形成在显示器的无效区域中。 有源区域中的显示电路可能呈现给定的堆叠高度，而非活动区域中的显示电路可能表现出小于给定堆叠高度的堆叠高度。 特别地，接触焊盘可以直接形成在直接位于柔性显示器基板上的多缓冲层上。 钝化材料可以仅选择性地形成在多缓冲层上的接触焊盘的边缘处。 多缓冲层可以形成在距离柔性显示基板的边缘一定距离处，以最小化多缓冲层中的裂纹。

公开(公告)号：WO2015112203A1

公开(公告)日：2015-07-30

申请号：PCT/US2014/057061

申请日：2014-09-23

Applicant: APPLE INC.

Inventor： CHOI, Jae, Won ,  GUILLOU, Jean-pierre ,  CHANG, Shih, Chang ,  TSAI, Tsung-Ting ,  GUPTA, Vasudha ,  PARK, Young, Bae

IPC: H01L51/52

CPC classification number: H01L27/3272 ,  H01L27/3262 ,  H01L29/78603 ,  H01L29/78606 ,  H01L29/78666 ,  H01L29/78675 ,  H01L29/7869 ,  H01L2924/0002 ,  H01L2924/00

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 compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. A bottom conductive shielding structure may be formed below each drive transistor. The bottom conductive shielding structure may serve to shield the drive transistor from any electric field generated from the adjacent row and column lines. The bottom conductive shielding structure may be electrically floating or coupled to a power supply line.

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。 显示像素阵列可能有行和列。 行行可用于将行控制信号应用于显示像素的行。 列线（数据线）可用于将显示数据和其他信号应用于显示像素的相应列。 可以在每个驱动晶体管的下方形成底部导电屏蔽结构。 底部导电屏蔽结构可以用于屏蔽来自相邻行和列线产生的任何电场的驱动晶体管。 底部导电屏蔽结构可以电浮动或耦合到电源线。

公开(公告)号：WO2015031037A1

公开(公告)日：2015-03-05

申请号：PCT/US2014/050571

申请日：2014-08-11

Applicant: APPLE INC.

Inventor： CHANG, Shih, Chang ,  HUNG, Ming-Chin ,  YU, Cheng-Ho ,  CHANG, Ting-Kuo ,  JAMSHIDI ROUDBARI, Abbas ,  LIN, Shang-Chih ,  KIM, Kyung-wook ,  HUANG, Chun-Yao ,  LEE, Szu-Hsien ,  CHEN, Yu-Cheng ,  OSAWA, Hiroshi ,  PARK, Young, Bae ,  GUPTA, Vasudha ,  LIN, Chin-wei ,  CHOI, Jae, Won ,  TSAI, Tsung-ting

IPC: G02F1/1368 ,  H01L27/32 ,  G09F9/00 ,  H01L29/786

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.

Abstract translation: 电子设备可以包括在基板上具有显示像素阵列的显示器。 显示像素可以是液晶显示器中的有机发光二极管显示像素或显示像素。 在有机发光二极管显示器中，可以形成包括半导体氧化物薄膜晶体管，硅薄膜晶体管和电容器结构的混合薄膜晶体管结构。 电容器结构可以与半导体氧化物薄膜晶体管重叠。 有机发光二极管显示像素可以具有氧化物和硅晶体管的组合。 在液晶显示器中，显示驱动器电路可以包括硅薄膜晶体管电路，显示像素可以基于氧化物薄膜晶体管。 可以在形成硅晶体管栅极和氧化物晶体管栅极中使用单层或两层不同的栅极金属层。 硅晶体管可以具有与浮动栅极结构重叠的栅极。

公开(公告)号：WO2014168747A1

公开(公告)日：2014-10-16

申请号：PCT/US2014/031302

申请日：2014-03-20

Applicant: APPLE INC.

Inventor： PARK, Young, Bae ,  CHANG, Shih, Chang ,  GUPTA, Vasudha

IPC: H01L51/00 ,  H01L27/32

CPC classification number: H01L27/124 ,  H01L27/1218 ,  H01L27/1259 ,  H01L27/3276 ,  H01L51/0097 ,  H01L2251/5338 ,  Y02E10/549

Abstract: An electronic device may have a flexible display with portions that are bent along a bend axis. The display may have display circuitry such as an array of display pixels in an active area. Contact pads may be formed in an inactive area of the display. Signal lines may couple the display pixels to the contact pads. The signal lines may overlap the bend axis in the inactive area of the display. During fabrication, an etch stop may be formed on the display that overlaps the bend axis. The etch stop may prevent over etching of dielectric such as a buffer layer on a polymer flexible display substrate. A layer of polymer that serves as a neutral stress plane adjustment layer may be formed over the signal lines in the inactive area of the display. Upon bending, the neutral stress plane adjustment layer helps prevent stress in the signal lines.

Abstract translation: 电子设备可以具有柔性显示器，其具有沿着弯曲轴线弯曲的部分。 显示器可以具有诸如有源区域中的显示像素阵列的显示电路。 接触焊盘可以形成在显示器的无效区域中。 信号线可将显示像素耦合到接触垫。 信号线可能与显示器的非活动区域中的弯曲轴重叠。 在制造期间，可以在显示器上形成与弯曲轴线重叠的蚀刻停止。 蚀刻停止可以防止在聚合物柔性显示器基板上的诸如缓冲层之类的电介质的过度蚀刻。 用作中性应力平面调整层的聚合物层可以形成在显示器的非活动区域中的信号线上。 弯曲时，中性应力平面调整层有助于防止信号线中的应力。

公开(公告)号：WO2014113389A2

公开(公告)日：2014-07-24

申请号：PCT/US2014/011488

申请日：2014-01-14

Applicant: APPLE INC.

Inventor： GUPTA, Vasudha

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0216 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/045

Abstract: A pixel driving circuit includes a storage capacitor, a first, a second, and a third transistor. A method for driving an organic light emitting diode (OLED) display includes controlling the second transistor by a first signal from a gate line such that the second transistor is switched "Off" for a first phase, and "On" for a second phase and a third phase, "Off" for a fourth phase. During the second phase, storing a threshold voltage of the first transistor on the storage capacitor coupled between the gate and the source of the first transistor. During the third phase, supplying a data voltage from a data line to the gate of the first transistor, and switching off the third transistor by a second signal such that the voltage at an anode of the OLED does not vary with pixel location and provides brightness uniformity for the display.

Abstract translation: 像素驱动电路包括存储电容器，第一，第二和第三晶体管。 用于驱动有机发光二极管（OLED）显示器的方法包括：通过来自栅极线的第一信号来控制第二晶体管，使得第二晶体管对于第一相切换为“关”，对于第二相切换为“开”，并且 第三阶段，第四阶段为“关”。 在第二阶段期间，将第一晶体管的阈值电压存储在耦合在第一晶体管的栅极和源极之间的存储电容器上。 在第三阶段期间，将来自数据线的数据电压提供给第一晶体管的栅极，并且通过第二信号来关闭第三晶体管，使得OLED的阳极处的电压不随着像素位置而变化并且提供亮度 均匀性显示。

公开(公告)号：WO2014025534A1

公开(公告)日：2014-02-13

申请号：PCT/US2013/051683

申请日：2013-07-23

Applicant: APPLE INC.

Inventor： DEGNER, Brett, W. ,  CHEN, Chieh-wei ,  MATHEW, Dinesh, C. ,  DRZAIC, Paul, S. ,  KIM, Sang, Ha ,  GRESPAN, Silvio ,  ZHONG, John, Z. ,  GUILLOU, Jean-pierre ,  SUNG, Kuo-Hua ,  PARK, Young, Bae ,  GUPTA, Vasudha

IPC: H05K1/02 ,  H01L51/00 ,  G02F1/1333 ,  G02F1/1345 ,  H05K1/18

CPC classification number: H01L27/326 ,  G02F1/133305 ,  G02F2001/133388 ,  H01L27/3297 ,  H01L51/0097 ,  H01L2251/5338 ,  H05K1/028 ,  H05K1/189 ,  H05K2201/09036 ,  H05K2201/0979 ,  H05K2201/10128 ,  Y02E10/549

Abstract: An electronic device 10 may be provided with an organic light- emitting diode display 14 with minimized border regions IA. The border regions IA may be minimized by providing the display with bent edge portions 56 having neutral plane adjustment features 58 that facilitate bending of the bent edge portions while minimizing damage to the bent edge portions. The neutral plane adjustment features may include a modified backfilm layer 52 of the display in which portions of the backfilm layer are removed in a bend region. A display device may include a substrate, a display panel on the substrate having display pixels, and peripheral circuitry proximate the display panel and configured to drive the display pixels. A portion of the periphery of the substrate may be bent substantially orthogonal to the display panel to reduce an apparent surface area of the display device. The bent portion may include an electrode for communication with the peripheral circuitry.

Abstract translation: 电子设备10可以设置有具有最小边界区域IA的有机发光二极管显示器14。 通过为显示器提供具有中立平面调整特征58的弯曲边缘部分56，边界区域1A可以被最小化，该边缘部分有助于弯曲边缘部分的弯曲，同时最小化对弯曲边缘部分的损伤。 中性平面调整特征可以包括显示器的改进的背膜层52，其中背膜层的部分在弯曲区域中被去除。 显示装置可以包括基板，具有显示像素的基板上的显示面板，以及靠近显示面板并被配置为驱动显示像素的外围电路。 基板的周边的一部分可以基本上垂直于显示面板弯曲，以减少显示装置的表观表面积。 弯曲部分可以包括用于与外围电路通信的电极。

公开(公告)号：EP4236656A2

公开(公告)日：2023-08-30

申请号：EP23180473.3

申请日：2014-09-23

Applicant: Apple Inc.

Inventor： CHOI, Jae Won ,  GUILLOU, Jean-Pierre ,  CHANG, Shih Chang ,  TSAI, Tsung-Ting ,  GUPTA, Vasudha ,  PARK, Young Bae

IPC: H10K59/126

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 compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. A bottom conductive shielding structure may be formed below each drive transistor. The bottom conductive shielding structure may serve to shield the drive transistor from any electric field generated from the adjacent row and column lines. The bottom conductive shielding structure may be electrically floating or coupled to a power supply line.