公开(公告)号：US20150054799A1

公开(公告)日：2015-02-26

申请号：US14228098

申请日：2014-03-27

Applicant: Apple Inc.

Inventor： Shih Chang Chang ,  Ming-Chin Hung ,  Cheng-Ho Yu ,  Ting-Kuo Chang ,  Kyung-Wook Kim ,  Chun-Yao Huang ,  Szu-Hsien Lee ,  Yu-Cheng Chen ,  Hiroshi Osawa

IPC: G09G3/36

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：US20140370655A1

公开(公告)日：2014-12-18

申请号：US14474433

申请日：2014-09-02

Applicant: Apple Inc.

Inventor： Ming-Chin Hung ,  Kyung Wook Kim ,  Young Bae Park ,  Hao-Lin Chiu ,  Chun-Yao Huang ,  Shih Chang Chang

IPC: H01L29/66 ,  H01L29/423 ,  H01L29/786

CPC classification number: H01L29/66742 ,  H01L27/1225 ,  H01L29/42364 ,  H01L29/42384 ,  H01L29/786 ,  H01L29/7869

Abstract: A method is provided for fabricating a thin-film transistor (TFT). The method includes forming a semiconductor layer over a gate insulator that covers a gate electrode, and depositing an insulator layer over the semiconductor layer, as well as etching the insulator layer to form a patterned etch-stop without losing the gate insulator. The method also includes forming a source electrode and a drain electrode over the semiconductor layer and the patterned etch-stop. The method further includes removing a portion of the semiconductor layer beyond the source electrode and the drain electrode such that a remaining portion of the semiconductor layer covers the gate insulator in a first overlapping area of the source electrode and the gate electrode and a second overlapping area of the drain electrode and gate electrode.

公开(公告)号：US20140118666A1

公开(公告)日：2014-05-01

申请号：US13741138

申请日：2013-01-14

Applicant: APPLE INC.

Inventor： Szu-Hsien Lee ,  Byung Duk Yang ,  Chun-Yao Huang ,  Kyung-Wook Kim ,  Shih-Chang Chang ,  Young Cheol Yang ,  Young Bea Park ,  Ming-Chin Hung

IPC: G02F1/1339

CPC classification number: G02F1/13394 ,  G02F2001/13396

Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. Column spacers may be formed on the color filter layer to maintain a desired gap between the color filter and thin-film transistor layers. Support pads may be used to support the column spacers. Different column spacers may be located at different portions of the support pads to allow the support pad size to be reduced while ensuring adequate support. Lateral movement blocking structures such as circular rings may be used to prevent column spacer lateral movement. Subspacers located over pads may be used to create friction that retards lateral movement. Lateral movement may also be retarded by receiving column spacers in trenches or other recesses formed on a thin-film transistor layer.

Abstract translation: 显示器可以具有滤色器层和薄膜晶体管层。 液晶材料层可以位于滤色器层和薄膜晶体管层之间。 柱状间隔物可以形成在滤色器层上，以保持滤色器和薄膜晶体管层之间的期望的间隙。 支撑垫可用于支撑柱间隔物。 不同的柱间隔件可以位于支撑垫的不同部分，以允许在确保足够支撑的同时减小支撑垫尺寸。 可以使用诸如圆环的侧向运动阻挡结构来防止柱间隔件横向运动。 可以使用位于垫之上的子层以产生阻碍横向运动的摩擦。 通过在形成于薄膜晶体管层上的沟槽或其它凹槽中接收柱间隔物也可能阻碍横向移动。