公开(公告)号：US20180082621A1

公开(公告)日：2018-03-22

申请号：US15698262

申请日：2017-09-07

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Shengkui Gao ,  Hyunwoo Nho ,  Chin-Wei Lin ,  Mohammad B. Vahid Far ,  Jie Won Ryu ,  Kingsuk Brahma ,  Junhua Tan ,  Sun-II Chang ,  Shinya Ono ,  Jesse A. Richmond ,  Yafei Bi ,  Derek K. Shaeffer

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G3/20 ,  G09G3/2092 ,  G09G2310/0291 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2330/06 ,  G09G2330/10 ,  G09G2330/12

Abstract: Systems and methods are provided for differential sensing (DS), difference-differential sensing (DDS), correlated double sampling (CDS), and/or programmable capacitor matching to reduce display panel sensing noise. An electronic device may include one or more processors and an electronic display. The one or more processors may generate image data and adjust the image data based at least in part on display sensing feedback. The electronic display may employ sensing circuitry that obtains the display sensing feedback at least in part by applying test data to a pixel of a column of an active area of the display and differentially senses an electrical value of the pixel in comparison to a reference signal from a different column. This reference signal may provide a common mode noise reference, which is removed by the differential sensing and thereby enhances a quality of the sensed electrical value of the pixel.

公开(公告)号：US20180053466A1

公开(公告)日：2018-02-22

申请号：US15275109

申请日：2016-09-23

Applicant: Apple Inc.

Inventor： Rui Zhang ,  Mohammad Hajirostam ,  Hung Sheng Lin ,  Mohammad B. Vahid Far ,  Sang Y. Youn ,  Zhen Zhang ,  Prashant Mandlik ,  Sun-Il Chang ,  Jie Won Ryu ,  Shengkui Gao ,  Hyunwoo Nho ,  Wei H. Yao ,  Yafei Bi ,  Yun Wang

IPC: G09G3/32 ,  H01L51/00 ,  H01L27/32 ,  G11C19/28 ,  G01L1/22

CPC classification number: G09G3/006 ,  G01L1/2281 ,  G01M5/0033 ,  G01M5/0083 ,  G09G3/20 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2330/12 ,  G09G2380/02 ,  G11C7/04 ,  G11C19/28 ,  H01L27/3276 ,  H01L51/0031 ,  H01L51/0097

Abstract: An electronic device may have a flexible display such as an organic light-emitting diode display. A strain sensing resistor may be formed on a bent tail portion of the flexible display to gather strain measurements. Resistance measurement circuitry in a display driver integrated circuit may make resistance measurements on the strain sensing resistor and a temperature compensation resistor to measure strain. A crack detection line may be formed from an elongated pair of traces that are coupled at their ends to form a loop. The crack detection line may run along a peripheral edge of the flexible display. Crack detection circuitry may monitor the resistance of the crack detection line to detect cracks. The crack detection circuitry may include switches that adjust the length of the crack detection line and thereby allow resistances to be measured for different segments of the line.

公开(公告)号：US09613556B2

公开(公告)日：2017-04-04

申请号：US14474786

申请日：2014-09-02

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Sang Y. Youn ,  Hopil Bae ,  Mohammad Ali Jangda ,  Ahmad Al-Dahle ,  Wei H. Yao

IPC: G09G5/00 ,  G09G3/20 ,  H04B15/00 ,  H04W4/00 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/36

CPC classification number: G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3648 ,  G09G3/3674 ,  G09G2310/0267 ,  G09G2330/06 ,  G09G2340/0435 ,  H04B15/00 ,  H04W4/80

Abstract: An electronic device may be provided with wireless circuitry and a display. A display driver integrated circuit in the display may have a spectrum analyzer circuit. An antenna may monitor for wireless signals. The display driver integrated circuit may use the spectrum analyzer circuit to analyze the wireless signals and determine whether there is a potential for visible display artifacts. In the presence of conditions that can lead to display artifacts, the display driver integrated circuit may adjust a gate driver control signal. Adjustments to the gate driver control signal may be made using adjustable signal dividers. The adjustments to the gate driver control signal eliminate the visible display artifacts.

公开(公告)号：US20160275897A1

公开(公告)日：2016-09-22

申请号：US14660619

申请日：2015-03-17

Applicant: APPLE INC.

Inventor： Hung Sheng Lin ,  Chaohao Wang ,  Paolo Sacchetto

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0209 ,  G09G2320/029 ,  G09G2330/06 ,  G09G2330/08

Abstract: Devices and methods related to liquid crystal displays (LCDs) are provided. For example, such an electronic device may include an LCD with a slew rate control unit that adjusts a slew rate for source drivers of the LCD. The slew rate may be adjusted differently for each source driver and for each frame of data signal delivered by the source driver. Individually adjusting the slew rate of the source driver enables the LCD to respond to or reduce noise within the LCD that may otherwise contribute to flickering or other unwanted display events.

Abstract translation: 提供与液晶显示器（LCD）相关的设备和方法。 例如，这样的电子设备可以包括具有用于调整LCD的源极驱动器的转换速率的转换速率控制单元的LCD。 对于每个源驱动器和源驱动器传送的每个数据信号帧，可以不同地调整转换速率。 单独调整源驱动器的转换速率使LCD能够响应或降低LCD内的噪声，否则可能会导致闪烁或其他不需要的显示事件。

公开(公告)号：US20160063907A1

公开(公告)日：2016-03-03

申请号：US14474786

申请日：2014-09-02

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Sang Y. Youn ,  Hopil Bae ,  Mohammad Ali Jangda ,  Ahmad Al-Dahle ,  Wei H. Yao

IPC: G09G3/20 ,  H04W4/00 ,  H04W24/08 ,  H04B15/00

CPC classification number: G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3648 ,  G09G3/3674 ,  G09G2310/0267 ,  G09G2330/06 ,  G09G2340/0435 ,  H04B15/00 ,  H04W4/80

Abstract: An electronic device may be provided with wireless circuitry and a display. A display driver integrated circuit in the display may have a spectrum analyzer circuit. An antenna may monitor for wireless signals. The display driver integrated circuit may use the spectrum analyzer circuit to analyze the wireless signals and determine whether there is a potential for visible display artifacts. In the presence of conditions that can lead to display artifacts, the display driver integrated circuit may adjust a gate driver control signal. Adjustments to the gate driver control signal may be made using adjustable signal dividers. The adjustments to the gate driver control signal eliminate the visible display artifacts.

Abstract translation: 电子设备可以设置有无线电路和显示器。 显示器中的显示驱动器集成电路可以具有频谱分析器电路。 天线可以监控无线信号。 显示驱动器集成电路可以使用频谱分析器电路来分析无线信号并确定是否存在可见的显示伪影的可能性。 在可能导致显示伪像的条件的存在下，显示驱动器集成电路可以调整栅极驱动器控制信号。 可以使用可调信号分配器对门驱动器控制信号进行调整。 对栅极驱动器控制信号的调整消除了可见的显示伪影。