公开(公告)号：US20180082634A1

公开(公告)日：2018-03-22

申请号：US15701056

申请日：2017-09-11

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Chih-Wei Yeh ,  Chin-Wei Lin ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Injae Hwang ,  Jie Won Ryu ,  Junhua Tan ,  Paolo Sacchetto ,  Rui Zhang ,  Shengkui Gao ,  Sun-Il Chang ,  Wei H. Yao ,  Howard H. Tang

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2330/02 ,  G09G2330/12 ,  G09G2340/16 ,  G09G2360/18

Abstract: An apparatus receives current image frame data and data relating to at least one previous image frame for an electronic display. One or more parameters related to hysteresis of transistors in the electronic display are sensed. A correlation device, such as a look-up table, receives the sensed parameter or parameters and the data relating to one or more image frames, and uses this information, at least in part, to output an appropriate compensation signal for the current image frame data. The compensated current image frame data may then be supplied to the electronic display to reduce or eliminate the effects of hysteresis on the displayed image.

公开(公告)号：US20170243548A1

公开(公告)日：2017-08-24

申请号：US15275374

申请日：2016-09-24

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Lu Zhang ,  Zhibing Ge ,  Shih-Chyuan Fan Jiang ,  Ilie Garbacea ,  Marc Albrecht ,  Kingsuk Brahma ,  Hopil Bae ,  Paolo Sacchetto ,  Jie Won Ryu ,  Sandro H. Pintz ,  Chengrui Le

IPC: G09G3/34 ,  G09G3/36 ,  G09G3/3258

CPC classification number: G09G3/20 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2320/0693 ,  G09G2340/0435 ,  G09G2360/16

Abstract: Systems and methods are provided for improving displayed image quality of an electronic display that includes a display pixel. The electronic display displays a first image frame directly after a second image frame by applying an analog electrical signal to the display pixel. To facilitate display of the first image frame, circuitry receives image data corresponding to the image frame, in which the image data includes a grayscale value that indicates target luminance of the display pixel; determines expected refresh rate of the first image frame based at least in part on actual refresh rate of the second image frame; determines a pixel response correction offset based at least in part on the expected refresh rate of the first image frame; and determines processed image data by applying the pixel response correction offset to the grayscale value, in which the processed image data indicates magnitude of the analog electrical signal.

公开(公告)号：US09599865B2

公开(公告)日：2017-03-21

申请号：US14702556

申请日：2015-05-01

Applicant: Apple Inc.

Inventor： Zhibing Ge ,  Chaohao Wang ,  Cheng Chen ,  Kyung Wook Kim ,  Ming-Chin Hung ,  Paolo Sacchetto ,  Shih Chang Chang ,  Shih-Chyuan Fan Jiang ,  Shang-Chih Lin

IPC: G06F3/041 ,  G02F1/1343 ,  G06F3/147 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/134309 ,  G02F1/133514 ,  G02F1/1343 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2001/133357 ,  G02F2001/134372 ,  G06F3/147

Abstract: A display may have upper and lower display layers. A layer of liquid crystal material may be interposed between the upper and lower display layers. The display layers may have substrates. A thin-film transistor layer may have a layer of thin-film transistor structures on a substrate such as a clear glass layer. A planarization layer may be formed on the thin-film transistor structures. A transparent conductive layer may be formed on the planarization layer. The display may have a dielectric layer on the transparent conductive layer. Pixels may be formed in the display layers. The pixels may include pixel electrodes having fingers. The fingers may be formed on the dielectric layer. Trenches in the dielectric layer may be formed between the fingers. The trenches may extend to the transparent conductive layer or may be formed only partway into the dielectric layer.

公开(公告)号：US09557850B2

公开(公告)日：2017-01-31

申请号：US14630280

申请日：2015-02-24

Applicant: APPLE INC.

Inventor： Chaohao Wang ,  Paolo Sacchetto ,  Zhibing Ge ,  Cheng Chen ,  Shih-Chyuan Fan Jiang

IPC: G09G5/10 ,  G06F3/041 ,  G06F3/044 ,  G09G3/20

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/2011 ,  G09G3/3648 ,  G09G5/12 ,  G09G2310/027 ,  G09G2320/0266 ,  G09G2320/0271 ,  G09G2320/103 ,  G09G2340/16

Abstract: One embodiment describes an electronic display. The electronic display includes display driver circuitry that display an image frame on the electronic device using a first display pixel and a second display pixel, touch sensing circuitry that detect user interaction with the electronic display, and a timing controller. The timing controller receives image data, in which the image data describes a target grayscale value of the first pixel and the second pixel to display the image frame, instructs the display driver circuitry to display a first portion of the image frame by writing the image data to the first display pixel, instructs the touch sensing circuitry to determine whether a user touch is present on a surface of the electronic display after the first portion of the image frame is displayed, determines grayscale value displayed by the second display pixel to display a previous image frame, and instructs the display driver circuitry to display a second portion of the image frame by writing adjusted image data to the second display pixel when the displayed grayscale value differs from the target grayscale value of the second pixel by more than a threshold amount.

Abstract translation: 一个实施例描述了电子显示器。 电子显示器包括使用第一显示像素和第二显示像素在电子设备上显示图像帧的显示驱动器电路，检测用户与电子显示器的交互的触摸感测电路以及定时控制器。 定时控制器接收图像数据，其中图像数据描述第一像素的目标灰度值和用于显示图像帧的第二像素，指示显示驱动器电路通过写入图像数据来显示图像帧的第一部分 指示触摸感测电路在显示图像帧的第一部分之后确定用户触摸是否存在于电子显示器的表面上，确定由第二显示像素显示的灰度值以显示前一个 并且当所显示的灰度值与第二像素的目标灰度值不同于阈值时，通过将调整后的图像数据写入第二显示像素来指示显示驱动器电路显示图像帧的第二部分。

公开(公告)号：US20160351138A1

公开(公告)日：2016-12-01

申请号：US14722620

申请日：2015-05-27

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Brijesh Tripathi ,  Christopher Philip Alan Tann ,  David S. Zalatimo ,  Guy Cote ,  Hao Nan ,  Marc Albrecht ,  Paolo Sacchetto ,  Sandro H. Pintz

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G2320/0204 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2340/0435 ,  G09G2360/16

Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The image frames may be displayed with positive and negative polarities to help reduce charge accumulation effects. A charge accumulation tracker may analyze the image frames to determine when there is a risk of excess charge accumulation. The charge accumulation tracker may analyze information on gray levels, frame duration, and frame polarity. The charge accumulation tracker may compute a charge accumulation metric for entire image frames or may process subregions of each frame separately. When subregions are processed separately, each subregion may be individually monitored for a risk of excess charge accumulation.

Abstract translation: 电子设备可以产生要显示在显示器上的内容。 显示器可以具有用于显示内容的图像帧的液晶显示像素阵列。 可以以正极性和负极性显示图像帧以帮助减少电荷积累效应。 电荷累积跟踪器可以分析图像帧以确定何时存在电荷累积过多的风险。 电荷累积跟踪器可以分析关于灰度级，帧持续时间和帧极性的信息。 电荷积累跟踪器可以计算整个图像帧的电荷累积度量，或者可以分别处理每个帧的子区域。 当分区域被单独处理时，每个子区域可以被单独地监视以产生过量电荷累积的风险。

公开(公告)号：US20160232833A1

公开(公告)日：2016-08-11

申请号：US14617564

申请日：2015-02-09

Applicant: APPLE INC.

Inventor： Chaohao Wang ,  David S. Zalatimo ,  Lei Zhao ,  Christopher P. Tann ,  Paolo Sacchetto ,  Sandro H. Pintz ,  Yi Huang ,  Jun Qi

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G2310/0254 ,  G09G2310/04 ,  G09G2310/08 ,  G09G2320/0266 ,  G09G2340/0435

Abstract: One embodiment describes an electronic display that displays image frames with a first refresh rate or a second refresh rate, in which the second refresh rate is lower than the first refresh rate; a display driver that writes the image frames by applying voltage to a display panel; and a timing controller that receives first image data from an image source, in which the first image data describes a first image frame and a first desired refresh rate equal to the second fresh rate; and that instructs the display driver to apply a first set of voltage polarities to the display panel to display first image frame at the first refresh rate and to apply a second set of voltage polarities to the display the first image frame at the second refresh rate when polarity of inversion imbalance accumulated is equal to polarity of the first set of voltage polarities.

Abstract translation: 一个实施例描述了一种电子显示器，其显示具有第一刷新率或第二刷新率的图像帧，其中第二刷新率低于第一刷新率; 通过向显示面板施加电压来写入图像帧的显示驱动器; 以及定时控制器，其从图像源接收第一图像数据，其中第一图像数据描述第一图像帧和等于第二新鲜率的第一期望刷新率; 并且指示显示驱动器将第一组电压极性施加到显示面板以以第一刷新率显示第一图像帧，并且以第二刷新率将第二组电压极性施加到第一图像帧， 累积的反转不平衡极性等于第一组电压极性的极性。

公开(公告)号：US20160209711A1

公开(公告)日：2016-07-21

申请号：US14702556

申请日：2015-05-01

Applicant: Apple Inc.

Inventor： Zhibing Ge ,  Chaohao Wang ,  Cheng Chen ,  Kyung Wook Kim ,  Ming-Chin Hung ,  Paolo Sacchetto ,  Shih Chang Chang ,  Shih-Chyuan Fan Jiang ,  Shang-Chih Lin

IPC: G02F1/1343 ,  G02F1/1368 ,  G02F1/1335 ,  G06F3/147

CPC classification number: G02F1/134309 ,  G02F1/133514 ,  G02F1/1343 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2001/133357 ,  G02F2001/134372 ,  G06F3/147

Abstract: A display may have upper and lower display layers. A layer of liquid crystal material may be interposed between the upper and lower display layers. The display layers may have substrates. A thin-film transistor layer may have a layer of thin-film transistor structures on a substrate such as a clear glass layer. A planarization layer may be formed on the thin-film transistor structures. A transparent conductive layer may be formed on the planarization layer The display may have a dielectric layer on the transparent conductive layer. Pixels may be formed in the display layers. The pixels may include pixel electrodes having fingers. The fingers may be formed on the dielectric layer. Trenches in the dielectric layer may be formed between the fingers. The trenches may extend to the transparent conductive layer or may be formed only partway into the dielectric layer.

Abstract translation: 显示器可以具有上和下显示层。 可以在上显示层和下显示层之间插入一层液晶材料。 显示层可以具有基底。 薄膜晶体管层可以在诸如透明玻璃层的基板上具有薄膜晶体管结构层。 平坦化层可以形成在薄膜晶体管结构上。 透明导电层可以形成在平坦化层上。显示器可以在透明导电层上具有介电层。 可以在显示层中形成像素。 像素可以包括具有指状物的像素电极。 指状物可以形成在电介质层上。 电介质层中的沟槽可以形成在手指之间。 沟槽可以延伸到透明导电层，或者可以仅形成在介电层的中间部分。

公开(公告)号：US20150325212A1

公开(公告)日：2015-11-12

申请号：US14502868

申请日：2014-09-30

Applicant: APPLE, INC.

Inventor： Jason N. Gomez ,  James C. Aamold ,  Sandro H. Pintz ,  Paolo Sacchetto

IPC: G09G5/18 ,  G09G3/32 ,  G09G3/36

CPC classification number: G09G5/18 ,  G09G3/006 ,  G09G3/3208 ,  G09G3/3611 ,  G09G2310/08 ,  G09G2330/12

Abstract: A device includes a timing test circuit. The timing test circuit receives a timing signal related to the display of an image on a display. The timing test circuit also determines if the timing signals are invalid. Moreover, the timing test circuit transmits a fault indication when the timing signals are determined to be invalid.

Abstract translation: 设备包括定时测试电路。 定时测试电路接收与显示器上的图像的显示相关的定时信号。 定时测试电路还确定定时信号是否无效。 此外，当定时信号被确定为无效时，定时测试电路发送故障指示。

公开(公告)号：US20140198114A1

公开(公告)日：2014-07-17

申请号：US14155292

申请日：2014-01-14

Applicant: Apple Inc.

Inventor： Prasanna Nambi ,  Jason N. Gomez ,  Fenghua Zheng ,  Paolo Sacchetto ,  Sandro H. Pintz ,  Taesung Kim ,  Christopher P. Tann ,  Marc Albrecht ,  David W. Lum

IPC: G09G3/36

CPC classification number: G09G3/3618 ,  G06T1/20 ,  G06T2210/52 ,  G09G3/36 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/18 ,  G09G2370/08

Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

公开(公告)号：US12236850B2

公开(公告)日：2025-02-25

申请号：US18334914

申请日：2023-06-14

Applicant: Apple Inc.

Inventor： Sunmin Jang ,  Ce Zhang ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  Pablo Moreno Galbis ,  Paolo Sacchetto ,  Yaser Azizi ,  Young Don Bae

IPC: G09G3/32

Abstract: To reduce image artifacts induced by temperature variations associated with display pixels of an electronic display, processing circuitry may process temperature sensing data to obtain an average temperature and a temperature distribution of the electronic display. Based on the processed temperature data, the processing circuit may adjust a reference voltage applied to the display pixels to compensate for the average temperate. To further correct for the image artifacts, the processing circuitry may transform image data to luminance domain. Based on the processed temperature data, the processing may adjust luminance vales of the image data to compensate for the temperature distribution.