公开(公告)号：US10042409B2

公开(公告)日：2018-08-07

申请号：US14986371

申请日：2015-12-31

Applicant: Apple Inc.

Inventor： Keitaro Yamashita ,  Majid Gharghi ,  Ting-Kuo Chang ,  Abbas Jamshidi Roudbari

IPC: G06F1/32 ,  G06F3/041 ,  G06F3/044 ,  G09G3/20

Abstract: Methods and devices useful in discharging an aberrant charge on a touch sensitive display of an electronic device are provided. By way of example, a an electronic device includes a power management and control circuitry configured to receive a first voltage signal and a second voltage signal from a display subsystem of a display of the electronic device, receive a third voltage signal from a touch subsystem of the display, provide a power signal to the display subsystem to activate the display subsystem when the display is determined to be in a temporarily inactive state. Providing the power signal to the display subsystem comprises discharging an aberrant charge based on the third voltage signal.

公开(公告)号：US20180204889A1

公开(公告)日：2018-07-19

申请号：US15919057

申请日：2018-03-12

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 ,  G06F3/044

CPC classification number: H01L27/3223 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2310/0232 ,  G09G2320/0223 ,  G09G2320/0233 ,  H01L27/323 ,  H01L27/3276 ,  H01L2227/32

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：US20180090553A1

公开(公告)日：2018-03-29

申请号：US15370297

申请日：2016-12-06

Applicant: Apple Inc.

Inventor： Warren S. Rieutort-Louis ,  Ting-Kuo Chang ,  Chieh-Wei Chen ,  Cheng-Ho Yu

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3276 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2320/0223 ,  G09G2320/0242 ,  G09G2330/00 ,  H01L27/3218 ,  H01L27/3262 ,  H01L51/5209

Abstract: An organic light-emitting diode display may have an array of pixels. The pixels may each have an organic light-emitting diode with a respective anode and may be formed from thin-film transistor circuitry formed on a substrate. A mesh-shaped path may be used to distribute a power supply voltage to the thin-film circuitry. The mesh-shaped path may have intersecting horizontally extending lines and vertically extending lines. The horizontally extending lines may be zigzag metal lines that do not overlap the anodes. The vertically extending lines may be straight vertical metal lines that overlap the anodes. The pixels may include pixels of different colors. Angularly dependent shifts in display color may be minimized by ensuring that the anodes of the differently colored pixels overlap the vertically extending lines by similar amounts.

公开(公告)号：US20180075808A1

公开(公告)日：2018-03-15

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

CPC classification number: G09G3/3266 ,  G09G2300/0413 ,  G09G2310/0205 ,  G09G2310/0213 ,  G09G2310/0221 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/04 ,  G09G2340/0414 ,  G09G2340/0435

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：US09842551B2

公开(公告)日：2017-12-12

申请号：US14549475

申请日：2014-11-20

Applicant: Apple Inc.

Inventor： Keitaro Yamashita ,  Ting-Kuo Chang

IPC: G09G3/36 ,  G11C19/28 ,  G09G3/20

CPC classification number: G09G3/3611 ,  G09G3/20 ,  G09G3/3677 ,  G09G2300/0439 ,  G09G2310/0224 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/04 ,  G11C19/28

Abstract: A touch screen display may include gate line driver circuitry coupled to a display pixel array. The display may be provided with intra-frame pausing (IFP) capabilities, where touch or other operations may be performed during one or more intra-frame blanking intervals. In one suitable arrangement, a gate driver circuit may include multiple gate line driver segments each of which is activated by a separate gate start pulse is that received through a demultiplexing circuit. In another suitable embodiment, the gate driver circuit may include analog or digital gate driver units that include control circuits for selectively (dis)charging internal nodes in the gate driver circuit so as to balance the amount of stress that is experienced by a drive transistor in gate driver units at or near an IFP row and the amount of stress that is experienced by the remaining gate driver units.

公开(公告)号：US09734783B2

公开(公告)日：2017-08-15

申请号：US14864136

申请日：2015-09-24

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Keitaro Yamashita ,  Ting-Kuo Chang ,  Yun Wang ,  Hopil Bae ,  Kingsuk Brahma

IPC: G09G3/36 ,  G06F3/041

CPC classification number: G09G3/3648 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/3677 ,  G09G2300/0452 ,  G09G2300/0871 ,  G09G2310/0289 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2354/00

Abstract: A touch screen display may include gate line driver circuitry coupled to a display pixel array. The display may be provided with intra-frame pausing (IFP) capabilities, where touch or other operations may be performed during one or more intra-frame blanking intervals. In one suitable arrangement, a gate driver may be operable in a high impedance mode, where the output of the gate driver is left floating during touch or IFP intervals. In another suitable arrangement, the gate driver may be operable in an IFP reduced stress mode, where a digital pass gate in the gate driver is deactivated during IFP intervals. In yet another suitable arrangement, the gate driver may be operable in an all-gate-high (AGH) power-down mode, where the output of each gate driver in the driver circuitry is driven high in parallel when the displayed is being powered off. These arrangements may be implemented in any suitable combination.

公开(公告)号：US20170003526A1

公开(公告)日：2017-01-05

申请号：US14923178

申请日：2015-10-26

Applicant: Apple Inc.

Inventor： Abbas Jamshidi Roudbari ,  Shih-Hung Yeh ,  Ting-Kuo Chang

IPC: G02F1/1339

CPC classification number: G02F1/1339 ,  G02F1/1345

Abstract: A display may have an active area surrounded by a border area. The display may be a liquid crystal display having a liquid crystal layer sandwiched between a color filter layer and a thin-film transistor layer. The liquid crystal layer may be retained within the display using a ring of sealant that is dispensed along the border area on the thin-film transistor layer. The thin-film transistor layer may include at least a substrate, a dielectric layer formed over the substrate, a first planarization layer formed on the dielectric layer, and a second planarization layer formed on the first planarization layer. A first continuous trench structure may be formed along the border of the display to help prevent moisture seepage. A second trench structure that is separate from the first trench structure may be formed along the border of the display to help provide proper sealant adhesion.

Abstract translation: 显示器可以具有由边界区域包围的活动区域。 显示器可以是具有夹在滤色器层和薄膜晶体管层之间的液晶层的液晶显示器。 可以使用沿着薄膜晶体管层的边界区域分配的密封剂环将液晶层保持在显示器内。 薄膜晶体管层可以至少包括衬底，形成在衬底上的电介质层，形成在电介质层上的第一平坦化层和形成在第一平坦化层上的第二平坦化层。 可以沿着显示器的边界形成第一连续沟槽结构以帮助防止湿气渗透。 可以沿着显示器的边界形成与第一沟槽结构分离的第二沟槽结构，以帮助提供适当的密封剂粘附。

公开(公告)号：US20160293643A1

公开(公告)日：2016-10-06

申请号：US14678819

申请日：2015-04-03

Applicant: Apple Inc.

Inventor： Jungbae Kim ,  Kyung-Wook Kim ,  Shih Chang Chang ,  Ting-Kuo Chang ,  Ton-Yong Wang

IPC: H01L27/12 ,  H01L29/24 ,  H01L29/45 ,  G02F1/1345 ,  H01L29/66 ,  H01L21/265 ,  H01L29/49 ,  G02F1/1368 ,  H01L29/786 ,  H01L27/32

CPC classification number: H01L27/1248 ,  G02F1/13454 ,  G02F1/1362 ,  H01L21/26513 ,  H01L27/1225 ,  H01L27/1229 ,  H01L27/1251 ,  H01L27/1259 ,  H01L27/3262 ,  H01L29/4908 ,  H01L29/4916 ,  H01L29/66757 ,  H01L29/66969 ,  H01L29/78675 ,  H01L29/7869

Abstract: A display may have an array of pixels controlled by display driver circuitry. The pixels may have pixel circuits. In liquid crystal display configurations, each pixel circuit may have an electrode that applies electric fields to an associated portion of a liquid crystal layer. In organic light-emitting diode displays, each pixel circuit may have a drive transistor that applies current to an organic light-emitting diode in the pixel circuit. The pixel circuits and display driver circuitry may have thin-film transistor circuitry that includes transistor such as silicon transistors and semiconducting-oxide transistors. Semiconducting-oxide transistors and silicon transistors may be formed on a common substrate. Semiconducting-oxide transistors may have polysilicon layers with doped regions that serve as gates. Semiconducting-oxide channel regions overlap the gates. Transparent conductive oxide and metal may be used to form source-drain terminals that are coupled to opposing edges of the semiconducting oxide channel regions.

Abstract translation: 显示器可以具有由显示驱动器电路控制的像素阵列。 像素可以具有像素电路。 在液晶显示结构中，每个像素电路可以具有向液晶层的相关部分施加电场的电极。 在有机发光二极管显示器中，每个像素电路可以具有将像素电路中的有机发光二极管施加电流的驱动晶体管。 像素电路和显示驱动器电路可以具有包括诸如硅晶体管和半导体氧化物晶体管的晶体管的薄膜晶体管电路。 半导体氧化物晶体管和硅晶体管可以形成在公共衬底上。 半导体氧化物晶体管可以具有用作栅极的掺杂区域的多晶硅层。 半导体氧化物沟道区域与栅极重叠。 可以使用透明导电氧化物和金属来形成耦合到半导体氧化物沟道区的相对边缘的源极 - 漏极端子。

公开(公告)号：US09269321B2

公开(公告)日：2016-02-23

申请号：US14157858

申请日：2014-01-17

Applicant: Apple Inc.

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

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297

Abstract: An electronic display system has a light transmissive panel, a region of display elements on the panel, and source lines coupled to the display elements. A demultiplexer circuit has multiple groups of pass gates. Each pass gate has a pair of complimentary on-panel transistors, and the signal outputs of each group are connected to a respective group of the source lines. A display driver integrated circuit (IC) receives video data and timing control signals. A signal input of each group of pass gates is connected to a respective output pin of the driver IC. The display driver IC provides digital timing control signals to control the pass gates of the demultiplexer circuit. Other embodiments are also described.

Abstract translation: 电子显示系统具有透光面板，面板上的显示元件区域和耦合到显示元件的源极线。 解复用器电路具有多组通路。 每个通孔具有一对互补的面板上的晶体管，并且每个组的信号输出连接到相应的源极线组。 显示驱动器集成电路（IC）接收视频数据和定时控制信号。 每组通路门的信号输入端连接到驱动器IC的相应输出引脚。 显示驱动器IC提供数字定时控制信号以控制解复用器电路的通过门。 还描述了其它实施例。

公开(公告)号：US20150261032A1

公开(公告)日：2015-09-17

申请号：US14673645

申请日：2015-03-30

Applicant: Apple Inc.

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

IPC: G02F1/1345 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1335

CPC classification number: G02F1/13454 ,  G02F1/133528 ,  G02F1/136286 ,  G02F1/1368

Abstract: A display may have a thin-film-transistor layer with a substrate layer. A layer of dielectric may be formed on the substrate layer and may have an upper surface and a lower surface. The thin-film-transistor layer may include an array of display pixels. Data lines and gate lines may provide signals to the display pixels. Gate driver circuitry in an inactive peripheral portion of the display may include a gate driver circuit for each gate line. The gate driver circuits may include thin-film transistors that are formed on the upper surface of the layer of dielectric. Signal lines such as a gate low line, a gate routing line coupled between the gate driver circuits, and a common electrode line may be formed from two or more layers of metal to reduce their widths or may be embedded within the dielectric layer between the upper and lower surfaces under the thin-film transistors.

Abstract translation: 显示器可以具有带有衬底层的薄膜晶体管层。 电介质层可以形成在衬底层上，并且可以具有上表面和下表面。 薄膜晶体管层可以包括显示像素阵列。 数据线和栅极线可以向显示像素提供信号。 显示器的非活动外围部分中的栅极驱动器电路可以包括用于每个栅极线的栅极驱动器电路。 栅极驱动器电路可以包括形成在电介质层的上表面上的薄膜晶体管。 耦合在栅极驱动电路和公共电极线之间的诸如栅极低线，栅极布线线的信号线可以由两个或更多个金属层形成以减小它们的宽度，或者可以嵌入在上部的电介质层之间 和薄膜晶体管下的下表面。