公开(公告)号：US10971074B2

公开(公告)日：2021-04-06

申请号：US16712050

申请日：2019-12-12

Applicant: Apple Inc.

Inventor： Keitaro Yamashita ,  Abbas Jamshidi Roudbari ,  Shin-Hung Yeh ,  Tsung-Ting Tsai ,  Shih-Chang Chang ,  Ting-Kuo Chang ,  Ki Yeol Byun ,  Warren S. Rieutort-Louis

IPC: G09G3/3266

Abstract: An electronic device may include a display such as a light-emitting diode display. The electronic device may be a head-mounted device that provides a virtual reality or augmented reality environment to a user. To reduce artifacts in the display, a display may be operable in both a normal scanning mode and a partial scanning mode. In the normal scanning mode, every row of the display may be enabled to emit light in each frame. In the partial scanning mode, only a subset of the rows of the display may be enabled to emit light in each frame. The display may have a higher refresh rate in the partial scanning mode than in the normal scanning mode. To ensure uniform transistor stress across the display, the scanning driver for the display may scan the disabled rows in the partial scanning mode even though the rows will not be used to emit light.

公开(公告)号：US20200219945A1

公开(公告)日：2020-07-09

申请号：US16826521

申请日：2020-03-23

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3266 ,  G06F3/044

Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

公开(公告)号：US20200013342A1

公开(公告)日：2020-01-09

申请号：US16577597

申请日：2019-09-20

Applicant: Apple Inc.

Inventor： Keitaro Yamashita ,  Abbas Jamshidi Roudbari ,  Shin-Hung Yeh ,  Tsung-Ting Tsai ,  Shih-Chang Chang ,  Ting-Kuo Chang ,  Ki Yeol Byun ,  Warren S. Rieutort-Louis

IPC: G09G3/3266

Abstract: An electronic device may include a display such as a light-emitting diode display. The electronic device may be a head-mounted device that provides a virtual reality or augmented reality environment to a user. To reduce artifacts in the display, a display may be operable in both a normal scanning mode and a partial scanning mode. In the normal scanning mode, every row of the display may be enabled to emit light in each frame. In the partial scanning mode, only a subset of the rows of the display may be enabled to emit light in each frame. The display may have a higher refresh rate in the partial scanning mode than in the normal scanning mode. To ensure uniform transistor stress across the display, the scanning driver for the display may scan the disabled rows in the partial scanning mode even though the rows will not be used to emit light.

公开(公告)号：US10482822B2

公开(公告)日：2019-11-19

申请号：US15384096

申请日：2016-12-19

Applicant: Apple Inc.

Inventor： Keitaro Yamashita ,  Abbas Jamshidi Roudbari ,  Shin-Hung Yeh ,  Tsung-Ting Tsai ,  Shih-Chang Chang ,  Ting-Kuo Chang ,  Ki Yeol Byun ,  Warren S. Rieutort-Louis

IPC: G09G3/3266

Abstract: An electronic device may include a display such as a light-emitting diode display. The electronic device may be a head-mounted device that provides a virtual reality or augmented reality environment to a user. To reduce artifacts in the display, a display may be operable in both a normal scanning mode and a partial scanning mode. In the normal scanning mode, every row of the display may be enabled to emit light in each frame. In the partial scanning mode, only a subset of the rows of the display may be enabled to emit light in each frame. The display may have a higher refresh rate in the partial scanning mode than in the normal scanning mode. To ensure uniform transistor stress across the display, the scanning driver for the display may scan the disabled rows in the partial scanning mode even though the rows will not be used to emit light.

公开(公告)号：US10133382B2

公开(公告)日：2018-11-20

申请号：US15311836

申请日：2014-10-02

Applicant: Apple Inc.

Inventor： Byung Duk Yang ,  Kyung Wook Kim ,  Szu-Hsien Lee ,  Shih-Chang Chang ,  John Z. Zhong

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1368 ,  G02F1/1343 ,  G02F1/1362

Abstract: A touch screen is disclosed. The touch screen can comprise a substrate having a first surface upon which a touch or proximity event is to be detected, and a second surface that opposes the first surface, and a touch sensor electrode and a first display pixel including a first display pixel TFT formed on the second surface of the substrate. The first touch sensor electrode can be disposed between the second surface of the substrate and the first display pixel TFT, and the first touch sensor electrode can be configured to detect the touch or proximity event. In some examples, the substrate can comprise a TFT glass substrate. In some examples, the touch screen can comprise a first touch sensor routing electrically coupled to the first touch sensor electrode, wherein the first touch sensor routing is disposed between the second surface of the substrate and the first display pixel TFT.

公开(公告)号：US10031367B2

公开(公告)日：2018-07-24

申请号：US13628811

申请日：2012-09-27

Applicant: Apple Inc.

Inventor： Victor H. Yin ,  Jun Qi ,  Dinesh C. Mathew ,  Shih-Chang Chang ,  Cheng Chen ,  John Z. Zhong ,  Wei Chen ,  Adam T. Garelli ,  Bryan W. Posner ,  Christiaan A. Ligtenberg

IPC: G02F1/1335 ,  G02F1/1362 ,  G02F1/1345 ,  G02F1/1333

Abstract: An electronic device may be provided with a display that has a layer of liquid crystal material interposed between a color filter layer and a thin-film-transistor layer. The thin-film-transistor layer may have a substrate with an upper surface and a lower surface. A circular polarizer may be formed on the upper surface. Thin-film transistor circuitry such as gate driver circuitry may be formed on the lower surface. A display driver circuit may be mounted on an inactive border region of the lower surface of the thin-film transistor substrate. Display pixels may form an array in a central active region of the display. A grid of metal gate and data lines may distribute signals from the display driver circuit and gate driver circuitry to the display pixels. A grid of non-reflecting lines may be interposed between the grid of metal lines and the lower surface.

公开(公告)号：US09965063B2

公开(公告)日：2018-05-08

申请号：US14174471

申请日：2014-02-06

Applicant: Apple Inc.

Inventor： Abbas Jamshidi Roudbari ,  Shih-Chang Chang ,  Ting-Kuo Chang ,  Cheng-Ho Yu

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/136 ,  G02F1/1362

CPC classification number: G06F3/041 ,  G02F1/13338 ,  G02F1/13624 ,  G02F1/136286 ,  G02F2001/13606 ,  G06F3/0412 ,  G06F3/0416

Abstract: A touch screen 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 (TFT) layer. The TFT layer may include thin-film transistors formed on top of a glass substrate. Each display pixel in the TFT layer may include first and second TFTs coupled in series between a data line and a storage capacitor. The first TFT may have a gate that is coupled to a gate line. The second TFT may have a gate that is coupled to a control line that is different than the gate line. A global enable signal may be provided on the control line, where the enable signal is asserted during display intervals and is deasserted during touch intervals. The second TFT may be formed using a top-gate TFT or a bottom-gate TFT arrangement.

公开(公告)号：US09964820B2

公开(公告)日：2018-05-08

申请号：US14491248

申请日：2014-09-19

Applicant: Apple Inc.

Inventor： Byung Duk Yang ,  Kyung-Wook Kim ,  Shih-Chang Chang ,  Hiroshi Osawa ,  John Z. Zhong

IPC: G02F1/1335 ,  G02F1/1362 ,  G02F1/1333

CPC classification number: G02F1/136209 ,  G02F2001/133357 ,  G02F2001/136222

Abstract: A display may have a thin-film transistor layer and a color filter layer. The display may include light blocking structures formed on a transparent substrate. In one arrangement, a clear planarization layer may be formed over the light blocking structures. The thin-film transistor layer may be formed over the planarization layer. The color filter layer may be integrated with the thin-film transistor layer. At least light blocking structures and the planarization layer should be formed from high temperature resistance material. In another arrangement, the color filter layer may be formed on the light blocking structures. A clear planarization layer may then be formed over the color filter layer. The thin-film transistor layer may be formed on the planarization layer. In this arrangement, the color filter layer also needs to be formed from thermal resistance material.

公开(公告)号：US09530801B2

公开(公告)日：2016-12-27

申请号：US14153954

申请日：2014-01-13

Applicant: Apple Inc.

Inventor： Daisuke Nozu ,  Hirokazu Yamagata ,  Hiroshi Osawa ,  Shang-Chih Lin ,  Shih-Chang Chang ,  Yu-Cheng Chen

IPC: G02F1/1368 ,  H01L27/12 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/136

CPC classification number: H01L27/124 ,  G02F1/133345 ,  G02F1/133502 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2001/13606 ,  G02F2001/13685 ,  G02F2201/40 ,  G02F2202/42 ,  H01L27/1255 ,  H01L27/1259

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 (TFT) layer. The TFT layer may include thin-film transistors formed on top of a glass substrate. A passivation layer may be formed on the thin-film transistor layers. A first low-k dielectric layer may be formed on the passivation layer. Data line routing structures may be formed on the first low-k dielectric layer. A second low-k dielectric layer may be formed on the first low-k dielectric layer. A common voltage electrode and associated storage capacitance may be formed on the second low-k dielectric layer. The first and second low-k dielectric layers may be formed from material having substantially similar refractive indices to maximize backlight transmittance and may have appropriate thicknesses so as to minimize parasitic capacitive loading.

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（TFT）层之间。 TFT层可以包括形成在玻璃基板的顶部的薄膜晶体管。 钝化层可以形成在薄膜晶体管层上。 可以在钝化层上形成第一低k电介质层。 数据线路由结构可以形成在第一低k电介质层上。 可以在第一低k电介质层上形成第二低k电介质层。 公共电压电极和相关联的存储电容可以形成在第二低k电介质层上。 第一和第二低k电介质层可以由具有基本上相似的折射率的材料形成，以使背光透射率最大化并且可以具有适当的厚度，以便使寄生电容负载最小化。

公开(公告)号：US09336709B2

公开(公告)日：2016-05-10

申请号：US14262363

申请日：2014-04-25

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Shih-Chang Chang ,  Tsung-Ting Tsai

IPC: G09G3/32 ,  H01L27/32

CPC classification number: G09G3/3225 ,  G09G2310/0264 ,  H01L27/3248 ,  H01L27/326 ,  H01L27/3262 ,  H01L27/3276 ,  H01L2251/5315

Abstract: An electronic device may be provided with a display. The display may be formed from an array of organic light-emitting diode display pixels. Each display pixel may have an organic light-emitting diode having an anode and a cathode and may have an associated pixel circuit for controlling the light-emitting diode. The anodes may be formed from patches of metal arranged in an array on the display. The display pixels may be controlled using data lines and gate lines. The gate lines may control thin-film transistors in the pixel circuits. Gate driver circuitry along the left and right edges of the display may supply signals to the gate lines. The pixel circuits may be located in the center of the display between the gate driver circuitry. Some of the anodes may overlap the pixel circuits and some of the anodes may overlap the gate driver circuitry.

Abstract translation: 电子设备可以设置有显示器。 显示器可以由有机发光二极管显示像素的阵列形成。 每个显示像素可以具有具有阳极和阴极的有机发光二极管，并且可以具有用于控制发光二极管的相关联的像素电路。 阳极可以由布置在显示器上的阵列中的金属片形成。 可以使用数据线和栅极线来控制显示像素。 栅极线可以控制像素电路中的薄膜晶体管。 沿着显示器的左边缘和右边缘的栅极驱动器电路可以向栅极线提供信号。 像素电路可以位于栅极驱动器电路之间的显示器的中心。 一些阳极可能与像素电路重叠，并且一些阳极可能与栅极驱动器电路重叠。