公开(公告)号：US20150338951A1

公开(公告)日：2015-11-26

申请号：US14286718

申请日：2014-05-23

Applicant: Apple Inc.

Inventor： Szu-Hsien LEE ,  Byung Duk YANG ,  Chun-Yao HUANG ,  Kyung Wook KIM ,  Shih Chang CHANG

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416 ,  Y10T29/49107

Abstract: A touch screen. In some examples, the touch screen can comprise a first element coupled to a first sense connection, and a second element coupled to a second sense connection. In some examples, the first and second sense connections can be configured such that a load presented by the first sense connection and the first element is substantially equal to a load presented by the second sense connection and the second element. In some examples, the first and second sense connections can comprise detour routing configured such that a resistance of the first sense connection is substantially equal to a resistance of the second sense connection. In some examples, the first and second sense connections can be coupled to dummy routing configured such that a first capacitance presented by the first sense connection is substantially equal to a second capacitance presented by the second sense connection.

Abstract translation: 触摸屏。 在一些示例中，触摸屏可以包括耦合到第一感测连接的第一元件和耦合到第二感测连接的第二元件。 在一些示例中，第一和第二感测连接可以被配置为使得由第一感测连接和第一元件呈现的负载基本上等于由第二感测连接和第二元件呈现的负载。 在一些示例中，第一和第二感测连接可以包括被配置为使得第一感测连接的电阻基本上等于第二感测连接的电阻的迂回路由。 在一些示例中，第一感测连接和第二感测连接可以耦合到伪路由，其被配置为使得由第一感测连接呈现的第一电容基本上等于由第二感测连接呈现的第二电容。

公开(公告)号：US20150192815A1

公开(公告)日：2015-07-09

申请号：US14666174

申请日：2015-03-23

Applicant: Apple Inc.

Inventor： Shih Chang CHANG ,  John Z. ZHONG

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/133 ,  G06F3/044 ,  G02F1/1368

CPC classification number: G06F3/044 ,  G02F1/13306 ,  G02F1/133305 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F1/1368 ,  G06F1/16 ,  G06F3/0412 ,  G06F2203/04104 ,  G06F2203/04108

Abstract: Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on an underside of a color filter glass, and a liquid crystal region can be disposed between the color filter glass and the TFT layer. Placing the sense lines on the underside of the color filter glass, i.e., within the display pixel cell, can provide a benefit of allowing the color filter glass to be thinned after the pixel cells have been assembled, for example.

Abstract translation: 提供了集成触摸屏，包括由薄膜晶体管层的组合电路元件形成的驱动线和在滤色器层和修饰或产生光的材料层之间形成的感测线。 可以在触摸感测操作期间将TFT层中的公共电极（Vcom）组合在一起以形成驱动线。 感光线可以形成在滤色器玻璃的下侧，并且液晶区域可以设置在滤色器玻璃和TFT层之间。 将感测线放置在滤色器玻璃的下侧，即显示像素单元内，可以提供例如在像素单元组装之后使滤色器玻璃变薄的益处。

公开(公告)号：US20150022497A1

公开(公告)日：2015-01-22

申请号：US14456831

申请日：2014-08-11

Applicant: Apple Inc.

Inventor： Shih Chang CHANG ,  John Z. ZHONG

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/044 ,  G02F1/13306 ,  G02F1/133305 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F1/1368 ,  G06F1/16 ,  G06F3/0412 ,  G06F2203/04104 ,  G06F2203/04108

Abstract: Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on an underside of a color filter glass, and a liquid crystal region can be disposed between the color filter glass and the TFT layer. Placing the sense lines on the underside of the color filter glass, i.e., within the display pixel cell, can provide a benefit of allowing the color filter glass to be thinned after the pixel cells have been assembled, for example.

公开(公告)号：US20130106755A1

公开(公告)日：2013-05-02

申请号：US13717593

申请日：2012-12-17

Applicant: Apple Inc.

Inventor： Steven Porter HOTELLING ,  Marduke YOUSEFPOR ,  Shih Chang CHANG ,  John Z. ZHONG

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/044 ,  G06F2203/04103

Abstract: Displays with touch sensing circuitry integrated into the display pixel stackup are provided. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry.

公开(公告)号：US20200258454A1

公开(公告)日：2020-08-13

申请号：US16865213

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Chaohao WANG ,  Szu-Hsien LEE ,  Paolo SACCHETTO ,  Shih Chang CHANG ,  Chun-Yao HUANG ,  Paul S. DRZAIC

IPC: G09G3/3266 ,  G09G3/20

Abstract: This application relates to methods and apparatus to refresh a display device at various frequencies. Specifically, multiple areas of the display device may be refreshed concurrently at different frequencies. In this way, when static content is being displayed in certain areas of the display device, those certain areas can be refreshed at a lower rate than areas displaying dynamic content such as video or animation. By refreshing at lower rates, the energy consumed by the display device and subsystems associated with the display device can be reduced. Additionally, processes for reducing flicker when refreshing the display device at different refresh rates are disclosed herein.

公开(公告)号：US20160054834A1

公开(公告)日：2016-02-25

申请号：US14929120

申请日：2015-10-30

Applicant: APPLE INC.

Inventor： Shih Chang CHANG ,  Hopil BAE ,  Cheng-ho YU ,  Ahmad AL-DAHLE ,  Abbas JAMSHIDI-ROUDBARI

IPC: G06F3/044 ,  G06F3/045 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/045

Abstract: Setting a slew rate, e.g., a rising time or a falling time, of a scanning signal can be performed with a first operation, and a shunting resistance of the scanning line can be set with a second operation. A scanning system that scans a display screen, a touch screen, etc., can set a desired slew rate during a first period of time and can set a desired shunting resistance during a second period of time. A gate line system can sequentially scan gate lines to display an image during a display phase of a touch screen. The gate line system can, for example, increase the falling times of gate line signals. After the falling gate line signal has stabilized, for example, the gate line system can decrease the shunting resistance of the gate line.

Abstract translation: 可以通过第一操作来执行扫描信号的转换速率，例如上升时间或下降时间，并且可以通过第二操作来设置扫描线的分流电阻。 扫描显示屏，触摸屏等的扫描系统可以在第一时间段期间设置期望的转换速率，并且可以在第二时间段期间设置期望的分流电阻。 栅极线系统可以在触摸屏的显示阶段中顺序地扫描栅极线以显示图像。 栅极线系统可以例如增加栅极线信号的下降时间。 在下降的栅极线信号稳定之后，例如，栅极线系统可以降低栅极线的分流电阻。

公开(公告)号：US20160042708A1

公开(公告)日：2016-02-11

申请号：US14558663

申请日：2014-12-02

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Szu-Hsien LEE ,  Paolo Sacchetto ,  Shih Chang CHANG ,  Chun-Yao HUANG ,  Paul S. Drzaic

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3611 ,  G09G3/32 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2340/0435

Abstract: This application relates to methods and apparatus for refreshing a display device at various frequencies. Specifically, multiple areas of the display device can be refreshed concurrently at different frequencies. In this way, when static content is being displayed in certain areas of the display device, those certain areas can be refreshed at a lower rate than areas displaying dynamic content such as video or animation. By refreshing at lower rates, the energy consumed by the display device and subsystems associated with the display device can be reduced. Additionally, processes for reducing flicker when refreshing the display device at different refresh rates are disclosed herein.

Abstract translation: 本申请涉及用于以各种频率刷新显示设备的方法和装置。 具体而言，显示装置的多个区域可以以不同的频率同时刷新。 以这种方式，当显示设备的某些区域中显示静态内容时，可以以比显示动态内容（例如视频或动画）的区域更低的速率刷新那些特定区域。 通过以较低的速率刷新，可以减少与显示装置相关联的显示装置和子系统消耗的能量。 另外，本文公开了在以不同刷新率刷新显示设备时减少闪烁的处理。

公开(公告)号：US20150160769A1

公开(公告)日：2015-06-11

申请号：US14627995

申请日：2015-02-20

Applicant: Apple Inc.

Inventor： Marduke YOUSEFPOR ,  Steven P. HOTELLING ,  Kevin J. WHITE ,  Shih Chang CHANG

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/136286 ,  G06F1/16 ,  G06F3/041 ,  G06F3/0416 ,  G06F2203/04112 ,  G09G3/3677

Abstract: Touch screens with more compact border regions can include an active area that includes touch sensing circuitry including drive lines, and a border region around the active area. The border region can include an area of sealant deposited on conductive lines, and transistor circuitry, such as gate drivers, between the active area and the sealant. The conductive lines can extend from the sealant to the active area without electrically connecting to the transistor circuitry. The conductive lines can have equal impedances and can connect the drive lines to a touch controller off of the touch screen. A set of drive signal characteristics for the drive lines can be obtained by determining a transfer function associated with each drive line, obtaining an inverse of each transfer function, and applying a set of individual sense signal characteristics to the inverse transfer functions to obtain the corresponding set of drive signal characteristics.

Abstract translation: 具有更紧凑边框区域的触摸屏可以包括有源区域，其包括包括驱动线的触摸感测电路以及有效区域周围的边界区域。 边界区域可以包括沉积在导电线上的密封剂区域，以及在有源区域和密封剂之间的晶体管电路，例如栅极驱动器。 导电线可以从密封剂延伸到有源区，而不与晶体管电路电连接。 导线可以具有相等的阻抗，并且可以将驱动线连接到远离触摸屏的触摸控制器。 可以通过确定与每个驱动线相关联的传递函数，获得每个传递函数的逆，并将一组单独的感测信号特性应用于逆传递函数来获得用于驱动线的一组驱动信号特性，以获得相应的 一组驱动信号特性。

公开(公告)号：US20140247247A1

公开(公告)日：2014-09-04

申请号：US14275527

申请日：2014-05-12

Applicant: Apple Inc.

Inventor： Steven P. HOTELLING ,  Shih Chang CHANG ,  Lili HUANG ,  John Z. ZHONG

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/134363 ,  G02F1/136213 ,  G02F1/136286 ,  G02F1/1393 ,  G02F2001/133388 ,  G02F2001/13606 ,  G02F2001/136218 ,  G02F2201/40 ,  G06F3/017 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04101 ,  G06F2203/04103 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112 ,  G06F2203/04808 ,  G09G3/36

Abstract: A touch screen including display pixels with capacitive elements is provided. The touch screen includes first common voltage lines connecting capacitive elements in adjacent display pixels, and a second common voltage line connecting first common voltage lines. Groups of pixels can be formed as electrically separated regions by including breaks in the common voltage lines. The regions can include a drive region that is stimulated by stimulation signals, a sense region that receives sense signals corresponding to the stimulation signals. A grounded region can also be included, for example, between a sense region and a drive region. A shield layer can be formed of a substantially high resistance material and disposed to shield a sense region. A black mask line and conductive line under the black mask line can be included, for example, to provide low-resistance paths between a region of pixels and touch circuitry outside the touch screen borders.

公开(公告)号：US20140240286A1

公开(公告)日：2014-08-28

申请号：US14268911

申请日：2014-05-02

Applicant: Apple Inc.

Inventor： Shih Chang CHANG ,  John Z. ZHONG

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/134363 ,  G02F2001/13312 ,  G06F3/0412 ,  G06F3/0416

Abstract: This relates to displays for which the use of dual function capacitive elements does not result in any decreases of the aperture of the display. Thus, touch sensitive displays that have aperture ratios that are no worse than similar non-touch sensing displays can be manufactured. More specifically, this relates to placing touch sensing opaque elements so as to ensure that they are substantially overlapped by display related opaque elements, thus ensuring that the addition of the touch sensing elements does not substantially reduce the aperture ratio. The touch sensing display elements can be, for example, common lines that connect various capacitive elements that are configured to operate collectively as an element of the touch sensing system.

Abstract translation: 这涉及使用双功能电容元件的显示器不会导致显示器的孔径的任何减小。 因此，可以制造具有不比类似的非触摸感测显示器更差的孔径比的触敏显示器。 更具体地，这涉及放置触摸感测不透明元件以确保它们基本上与显示器相关的不透明元件重叠，从而确保添加触摸感测元件基本上不会降低开口率。 触摸感测显示元件可以是例如连接各种电容元件的公共线，其被配置为集体地作为触摸感测系统的元件进行操作。