公开(公告)号：US09129927B2

公开(公告)日：2015-09-08

申请号：US14229232

申请日：2014-03-28

Applicant: Apple Inc.

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

IPC: H01L35/24 ,  H01L27/32 ,  H01L27/12 ,  G09G3/36 ,  G02F1/1368

CPC classification number: H01L27/3262 ,  G02F1/13454 ,  G02F1/13624 ,  G02F1/1368 ,  G02F2001/13685 ,  G02F2202/104 ,  G09G3/3225 ,  G09G3/3611 ,  G09G3/3677 ,  G09G2320/043 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/1251 ,  H01L27/1255

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：US09088003B2

公开(公告)日：2015-07-21

申请号：US13787708

申请日：2013-03-06

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Youngbae Park ,  Shih Chang Chang ,  John Z. Zhong

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L51/5203 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/50 ,  H01L51/5209 ,  H01L51/5212 ,  H01L51/5225 ,  H01L51/5228 ,  H01L51/525 ,  H01L51/5259 ,  H01L51/5262 ,  H01L2251/5315

Abstract: An organic light emitting diode display includes a thin film transistor (TFT) substrate, which has TFTs for an array of pixels. Each TFT has a gate electrode, a source electrode, and a drain electrode. An organic layer is disposed over the TFT substrate. The organic layer has through-hole above the drain electrode. The display also includes pixel electrodes disposed over the organic layer. Each pixel electrode is connected to the drain electrode in the through-hole of the organic layer for each pixel. An organic light emitting diode (OLED) layer is disposed over the pixel electrode for each pixel. The organic light emitting layer is divided into pixels or sub-pixels by a pixel defining layer over the pixel electrode. The display further includes a common electrode and a conductive layer disposed over the OLED layer such that the conductive layer does not block light emission from the organic light emitting layer.

Abstract translation: 有机发光二极管显示器包括薄膜晶体管（TFT）衬底，其具有用于像素阵列的TFT。 每个TFT具有栅电极，源电极和漏电极。 有机层设置在TFT基板上。 有机层在漏电极上方具有通孔。 显示器还包括设置在有机层上的像素电极。 每个像素电极在每个像素的有机层的通孔中连接到漏电极。 对于每个像素，在像素电极上方设置有机发光二极管（OLED）层。 有机发光层通过像素电极上的像素限定层分成像素或子像素。 显示器还包括公共电极和设置在OLED层上的导电层，使得导电层不阻挡来自有机发光层的光发射。

公开(公告)号：US09065077B2

公开(公告)日：2015-06-23

申请号：US13913373

申请日：2013-06-07

Applicant: Apple Inc.

Inventor： Ming-Chin Hung ,  Shih Chang Chang ,  Vasudha Gupta ,  Young Bae Park

IPC: H01L51/56 ,  H01L27/32

CPC classification number: H01L51/56 ,  H01L27/3248 ,  H01L27/3265 ,  H01L27/3272 ,  H01L27/3276 ,  H01L2227/323

Abstract: A method is provided for fabricating an organic light emitting diode (OLED) display. The method includes forming a thin film transistor (TFT) substrate including a first metal layer and a second metal layer. The method also includes depositing a first passivation layer over the second metal layer, and forming a third metal layer over a channel region and a storage capacitor region. The third metal layer is configured to connect to a first portion of the second metal layer that is configured to connect to the first metal layer in a first through-hole through a gate insulator and the first passivation layer. The method further includes depositing a second passivation layer over the third metal layer, and forming an anode layer over the second passivation layer. The anode is configured to connect to a second portion of the third metal layer that is configured to connect to the second metal layer in a second through-hole of the first passivation layer and the second passivation layer.

Abstract translation: 提供了一种用于制造有机发光二极管（OLED）显示器的方法。 该方法包括形成包括第一金属层和第二金属层的薄膜晶体管（TFT）基板。 该方法还包括在第二金属层上沉积第一钝化层，以及在沟道区域和存储电容器区域上形成第三金属层。 第三金属层被配置为连接到第二金属层的第一部分，其被构造成通过栅极绝缘体和第一钝化层在第一通孔中连接到第一金属层。 该方法还包括在第三金属层上沉积第二钝化层，以及在第二钝化层上形成阳极层。 阳极被配置为连接到第三金属层的第二部分，其被配置为在第一钝化层和第二钝化层的第二通孔中连接到第二金属层。

公开(公告)号：US20140252317A1

公开(公告)日：2014-09-11

申请号：US13787708

申请日：2013-03-06

Applicant: APPLE INC.

Inventor： Vasudha Gupta ,  Youngbae Park ,  Shih Chang Chang ,  John Z. Zhong

IPC: H01L51/52

CPC classification number: H01L51/5203 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/50 ,  H01L51/5209 ,  H01L51/5212 ,  H01L51/5225 ,  H01L51/5228 ,  H01L51/525 ,  H01L51/5259 ,  H01L51/5262 ,  H01L2251/5315

Abstract: An organic light emitting diode display includes a thin film transistor (TFT) substrate, which has TFTs for an array of pixels. Each TFT has a gate electrode, a source electrode, and a drain electrode. An organic layer is disposed over the TFT substrate. The organic layer has through-hole above the drain electrode. The display also includes pixel electrodes disposed over the organic layer. Each pixel electrode is connected to the drain electrode in the through-hole of the organic layer for each pixel. An organic light emitting diode (OLED) layer is disposed over the pixel electrode for each pixel. The organic light emitting layer is divided into pixels or sub-pixels by a pixel defining layer over the pixel electrode. The display further includes a common electrode and a conductive layer disposed over the OLED layer such that the conductive layer does not block light emission from the organic light emitting layer.

Abstract translation: 有机发光二极管显示器包括薄膜晶体管（TFT）衬底，其具有用于像素阵列的TFT。 每个TFT具有栅电极，源电极和漏电极。 有机层设置在TFT基板上。 有机层在漏电极上方具有通孔。 显示器还包括设置在有机层上的像素电极。 每个像素电极在每个像素的有机层的通孔中连接到漏电极。 对于每个像素，在像素电极上方设置有机发光二极管（OLED）层。 有机发光层通过像素电极上的像素限定层分成像素或子像素。 显示器还包括公共电极和设置在OLED层上的导电层，使得导电层不阻挡来自有机发光层的光发射。

公开(公告)号：US20140204067A1

公开(公告)日：2014-07-24

申请号：US13745932

申请日：2013-01-21

Applicant: APPLE INC.

Inventor： Vasudha Gupta

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。