公开(公告)号：US09620064B2

公开(公告)日：2017-04-11

申请号：US14059329

申请日：2013-10-21

Applicant: Apple Inc.

Inventor： Marc Albrecht ,  Christopher Philip Alan Tann ,  Nicholas G. Roland ,  Sandro H. Pintz ,  Taesung Kim

IPC: G09G3/36 ,  G09G3/34 ,  G09G3/20

CPC classification number: G09G3/3406 ,  G09G3/2007 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A method and system are provided for compensating for brightness changes in a display having an array of display pixels. The method includes storing a plurality of look-up tables, where each table has a plurality of brightness signals that provide compensation for a brightness change when the refresh rate is changed during a panel self-refresh. The method also includes using display control circuitry to determine the refresh rate associated with an input signal and to determine a compensation based on the refresh rate. The display control circuitry may, for example, use non-linear interpolation to generate a look-up table for the refresh rate. The display control circuitry may adjust the input signal based on the look-up table to produce an output signal that compensates for a brightness change at the refresh rate. The output signal may be transmitted to the array of display pixels.

公开(公告)号：US20150009451A1

公开(公告)日：2015-01-08

申请号：US13935110

申请日：2013-07-03

Applicant: Apple Inc.

Inventor： Xinyu Zhu ,  Jun Qi ,  Meizi Jiao ,  Nicholas G. Roland ,  Victor H. Yin ,  Wei Chen

IPC: G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/13363 ,  G02F1/133536 ,  G02F2001/133638 ,  G02F2413/12

Abstract: An electronic device may be provided with a display mounted in a housing. The display may include a liquid crystal display module and a reflective polarizer having an in-plane optical axis. The display may also include a backlight unit that includes a light source, a light guide element, and a reflector film coupled to a backside of the light guide element. The display may also include a light retardation layer such as a quarter wave film. The quarter wave film may be arranged between the reflective polarizer and the reflector film of the backlight unit. During operation of the display, partially polarized light that is output from a front side of the light guide element may have a first component parallel to the in-plane optical axis and a second component perpendicular to the in-plane optical axis of the reflective polarizer. The second component may be reflected from the reflective polarizer.

Abstract translation: 电子设备可以设置有安装在壳体中的显示器。 显示器可以包括液晶显示模块和具有面内光轴的反射偏振器。 显示器还可以包括背光单元，其包括光源，导光元件和耦合到导光元件的背面的反射膜。 显示器还可以包括诸如四分之一波片的光延迟层。 四分之一波片可以布置在反射偏振器和背光单元的反射膜之间。 在显示器的操作期间，从导光元件的前侧输出的部分偏振光可以具有平行于平面内的光轴的第一分量和垂直于反射偏振器的平面内光轴的第二分量 。 第二组分可以从反射偏振器反射。

公开(公告)号：US20140267448A1

公开(公告)日：2014-09-18

申请号：US14059329

申请日：2013-10-21

Applicant: Apple Inc.

Inventor： Marc Albrecht ,  Christopher Philip Alan Tann ,  Nicholas G. Roland ,  Sandro H. Pintz ,  Taesung Kim

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G3/2007 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A method and system are provided for compensating for brightness changes in a display having an array of display pixels. The method includes storing a plurality of look-up tables, where each table has a plurality of brightness signals that provide compensation for a brightness change when the refresh rate is changed during a panel self-refresh. The method also includes using display control circuitry to determine the refresh rate associated with an input signal and to determine a compensation based on the refresh rate. The display control circuitry may, for example, use non-linear interpolation to generate a look-up table for the refresh rate. The display control circuitry may adjust the input signal based on the look-up table to produce an output signal that compensates for a brightness change at the refresh rate. The output signal may be transmitted to the array of display pixels.

Abstract translation: 提供了一种用于补偿具有显示像素阵列的显示器中的亮度变化的方法和系统。 该方法包括存储多个查找表，其中每个表具有多个亮度信号，当在面板自刷新期间刷新刷新率改变时，其提供对亮度变化的补偿。 该方法还包括使用显示控制电路来确定与输入信号相关联的刷新率并且基于刷新率来确定补偿。 显示控制电路可以例如使用非线性内插来产生刷新率的查找表。 显示控制电路可以基于查找表调整输入信号，以产生补偿刷新率下的亮度变化的输出信号。 输出信号可以被发送到显示像素阵列。

公开(公告)号：US09568772B2

公开(公告)日：2017-02-14

申请号：US14684758

申请日：2015-04-13

Applicant: Apple Inc.

Inventor： Xinyu Zhu ,  Jun Qi ,  Meizi Jiao ,  Nicholas G. Roland ,  Victor H. Yin ,  Wei Chen ,  Ming Xu ,  Cheng Chen ,  Zhibing Ge

IPC: G02F1/13363 ,  G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/13363 ,  G02B6/0053 ,  G02B6/0073 ,  G02F1/133504 ,  G02F1/133536 ,  G02F2001/133638 ,  G02F2413/01

Abstract: An electronic device may be provided with a display mounted in a housing. The display may include a liquid crystal display module and a reflective polarizer having an in-plane optical axis. The display may also include a backlight unit that includes a light source, a light guide element, and a reflector film coupled to a backside of the light guide element. The display may also include a light retardation layer such as a quarter wave film. The quarter wave film may be arranged between the reflective polarizer and the reflector film of the backlight unit. Partially polarized light that is output from a front side of the light guide element may have a first component parallel to the in-plane optical axis and a second component perpendicular to the in-plane optical axis of the reflective polarizer. The second component may be reflected from the reflective polarizer.

Abstract translation: 电子设备可以设置有安装在壳体中的显示器。 显示器可以包括液晶显示模块和具有面内光轴的反射偏振器。 显示器还可以包括背光单元，其包括光源，导光元件和耦合到导光元件的背面的反射膜。 显示器还可以包括诸如四分之一波片的光延迟层。 四分之一波片可以布置在反射偏振器和背光单元的反射膜之间。 从导光元件的前侧输出的部分偏振光可以具有平行于面内光轴的第一分量和垂直于反射型偏振器的平面内光轴的第二分量。 第二组分可以从反射偏振器反射。

公开(公告)号：US20160293085A1

公开(公告)日：2016-10-06

申请号：US14848769

申请日：2015-09-09

Applicant: Apple Inc.

Inventor： Adria Fores Herranz ,  Cheng Chen ,  Jiaying Wu ,  Nicholas G. Roland

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/2003 ,  G09G3/2092 ,  G09G3/3607 ,  G09G3/3648 ,  G09G5/003 ,  G09G5/02 ,  G09G2320/0242 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2340/16

Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of pixels each of which includes subpixels of different colors. The content that is to be displayed on the display may include an object such as a black object that is moved across a background. Due to differences in subpixel values in the background for subpixels of different colors, there is a potential for color motion blur to develop along a trailing edge portion of the object as the object is moved across the background. The electronic device may have a blur abatement image processor that processes the content to reduce color motion blur. The blur abatement image processor may identify which pixels are located in the trailing edge and may adjust subpixel values for pixels in the trailing edge.

Abstract translation: 电子设备可以产生要显示在显示器上的内容。 显示器可以具有像素阵列，每个像素包括不同颜色的子像素。 要显示在显示器上的内容可以包括诸如黑色物体之类的物体，该物体在背景上移动。 由于不同颜色的子像素的背景中的子像素值的差异，当物体在背景上移动时，存在沿对象的后缘部分发展颜色运动模糊的可能性。 电子设备可以具有处理内容以减少颜色运动模糊的模糊消除图像处理器。 模糊消除图像处理器可以识别哪些像素位于后沿，并且可以调整后沿中的像素的子像素值。

公开(公告)号：US10283031B2

公开(公告)日：2019-05-07

申请号：US14848769

申请日：2015-09-09

Applicant: Apple Inc.

Inventor： Adria Fores Herranz ,  Cheng Chen ,  Jiaying Wu ,  Nicholas G. Roland

IPC: G09G3/20 ,  G09G3/36 ,  G09G5/00 ,  G09G5/02

Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of pixels each of which includes subpixels of different colors. The content that is to be displayed on the display may include an object such as a black object that is moved across a background. Due to differences in subpixel values in the background for subpixels of different colors, there is a potential for color motion blur to develop along a trailing edge portion of the object as the object is moved across the background. The electronic device may have a blur abatement image processor that processes the content to reduce color motion blur. The blur abatement image processor may identify which pixels are located in the trailing edge and may adjust subpixel values for pixels in the trailing edge.

公开(公告)号：US09239490B2

公开(公告)日：2016-01-19

申请号：US13935110

申请日：2013-07-03

Applicant: Apple Inc.

Inventor： Xinyu Zhu ,  Jun Qi ,  Meizi Jiao ,  Nicholas G. Roland ,  Victor H. Yin ,  Wei Chen

IPC: G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/13363 ,  G02F1/133536 ,  G02F2001/133638 ,  G02F2413/12

Abstract: An electronic device may be provided with a display mounted in a housing. The display may include a liquid crystal display module and a reflective polarizer having an in-plane optical axis. The display may also include a backlight unit that includes a light source, a light guide element, and a reflector film coupled to a backside of the light guide element. The display may also include a light retardation layer such as a quarter wave film. The quarter wave film may be arranged between the reflective polarizer and the reflector film of the backlight unit. During operation of the display, partially polarized light that is output from a front side of the light guide element may have a first component parallel to the in-plane optical axis and a second component perpendicular to the in-plane optical axis of the reflective polarizer. The second component may be reflected from the reflective polarizer.

Abstract translation: 电子设备可以设置有安装在壳体中的显示器。 显示器可以包括液晶显示模块和具有面内光轴的反射偏振器。 显示器还可以包括背光单元，其包括光源，导光元件和耦合到导光元件的背面的反射膜。 显示器还可以包括诸如四分之一波片的光延迟层。 四分之一波片可以布置在反射偏振器和背光单元的反射膜之间。 在显示器的操作期间，从导光元件的前侧输出的部分偏振光可以具有平行于平面内的光轴的第一分量和垂直于反射偏振器的平面内光轴的第二分量 。 第二组分可以从反射偏振器反射。

公开(公告)号：US09230506B2

公开(公告)日：2016-01-05

申请号：US13801918

申请日：2013-03-13

Applicant: Apple Inc.

Inventor： Marc Albrecht ,  Christopher Philip Alan Tann ,  Nicholas G. Roland

IPC: G09G5/00

Abstract: A method is provided for compensating for brightness change in a display. The method includes storing a plurality of look-up tables (LUTs), where each table has a plurality of pixel levels at a variable refresh rate (VRR) and a plurality of brightness signals that provide compensation for the brightness change when refresh rate is changed during a panel self-refresh (PSR). The method also includes receiving an input signal from a graphics processing unit (GPU) and determining the VRR of the input signal from the GPU. The method further includes obtaining the LUT at the determined VRR of the input signal and adjusting the input signal to produce an output signal that compensates for the brightness change for each pixel or sub-pixel in a timing controller based upon the LUT at the determined VRR. The method further includes transmitting the output signal to the display. A system is also provided.

公开(公告)号：US09316860B2

公开(公告)日：2016-04-19

申请号：US14137383

申请日：2013-12-20

Applicant: Apple Inc.

Inventor： Nicholas C. Buchanan ,  Brian H. Thornton ,  Cheng Chen ,  Craig S. Gilden ,  Jun Qi ,  Nicholas G. Roland ,  Victor H. Yin ,  Zhibing Ge

IPC: G02F1/1335 ,  G02B5/30 ,  G02B1/111

CPC classification number: G02F1/133528 ,  G02B1/111 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/305

Abstract: A display polarizer may have a polymer layer such as a polyvinyl alcohol layer coated with a dichroic dye such as iodine. A polymer layer such as a tri-acetyl cellulose layer may be formed on the polyvinyl alcohol layer so that the iodine is interposed between the polyvinyl alcohol layer and the tri-acetyl cellulose layer. To provide protection for the iodine layer, an additional polymer layer such as an additional tri-acetyl cellulose layer and a layer of adhesive may be formed on top of the polymer layer. A functional layer such as an antireflection layer may form an outermost layer in the polarizer. Compensation films may be formed beneath the polyvinyl alcohol layer. Additional display layers such as a lower polarizer layer and interposed layers such as a thin-film transistor layer, liquid crystal layer, and color filter layer may be formed below the compensation films.

Abstract translation: 显示器偏振器可以具有聚合物层，例如涂覆有二色性染料如碘的聚乙烯醇层。 可以在聚乙烯醇层上形成聚合物层，例如三乙酰纤维素层，以使碘介于聚乙烯醇层和三乙酰纤维素层之间。 为了提供对碘层的保护，可以在聚合物层的顶部上形成另外的聚合物层，例如另外的三乙酰纤维素层和粘合剂层。 诸如抗反射层的功能层可以在偏振器中形成最外层。 补偿膜可以形成在聚乙烯醇层之下。 可以在补偿膜的下方形成附加的显示层，例如下偏振器层和诸如薄膜晶体管层，液晶层和滤色器层的插入层。

公开(公告)号：US09262987B2

公开(公告)日：2016-02-16

申请号：US13801918

申请日：2013-03-13

Applicant: Apple Inc.

Inventor： Marc Albrecht ,  Christopher Philip Alan Tann ,  Nicholas G. Roland

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G09G2320/0626 ,  G09G2330/022 ,  G09G2340/0435 ,  G09G2360/18

Abstract: A method is provided for compensating for brightness change in a display. The method includes storing a plurality of look-up tables (LUTs), where each table has a plurality of pixel levels at a variable refresh rate (VRR) and a plurality of brightness signals that provide compensation for the brightness change when refresh rate is changed during a panel self-refresh (PSR). The method also includes receiving an input signal from a graphics processing unit (GPU) and determining the VRR of the input signal from the GPU. The method further includes obtaining the LUT at the determined VRR of the input signal and adjusting the input signal to produce an output signal that compensates for the brightness change for each pixel or sub-pixel in a timing controller based upon the LUT at the determined VRR. The method further includes transmitting the output signal to the display. A system is also provided.

Abstract translation: 提供了一种补偿显示器亮度变化的方法。 该方法包括存储多个查找表（LUT），其中每个表具有可变刷新率（VRR）的多个像素级和当刷新率改变时为亮度改变提供补偿的多个亮度信号 在面板自刷新（PSR）期间。 该方法还包括从图形处理单元（GPU）接收输入信号并确定来自GPU的输入信号的VRR。 该方法还包括在确定的输入信号的VRR上获得LUT并调整输入信号以产生一个输出信号，该输出信号基于在所确定的VRR上的LUT来补偿定时控制器中的每个像素或子像素的亮度变化 。 该方法还包括将输出信号发送到显示器。 还提供了一个系统。