公开(公告)号：US20100244701A1

公开(公告)日：2010-09-30

申请号：US12410164

申请日：2009-03-24

申请人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

发明人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

IPC分类号： H01J61/52

CPC分类号： G02F1/133603 ,  G09G3/3413 ,  G09G3/3426 ,  G09G2320/041 ,  G09G2320/048 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2360/145

摘要： Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system.

摘要翻译： 提供了用于在基于发光二极管的背光源上维持目标白点的系统，方法和装置。 在一个实施例中，背光源可以包括两个或更多个发光二极管串，每个发光二极管以相应的驱动强度驱动。 每个串可以包括来自不同颜色仓的发光二极管，并且可以例如通过脉冲宽度调制或幅度调制来调整相应的驱动强度，以维持目标白点。 在某些实施例中，可以调整驱动强度以补偿由于温度或老化而可能发生的白点偏移。 控制器可以基于来自温度传感器的反馈，来自光学传感器，来自用户输入的反馈或来自包括在背光或系统内的校准数据来调整驱动强度。

公开(公告)号：US08378958B2

公开(公告)日：2013-02-19

申请号：US12410183

申请日：2009-03-24

申请人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

发明人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

IPC分类号： G09G3/36

CPC分类号： H05B33/0869 ,  G09G3/3426 ,  G09G5/02 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/0606 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/145 ,  H05B33/0872

摘要： Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system.

摘要翻译： 提供了用于在基于发光二极管的背光源上维持目标白点的系统，方法和装置。 在一个实施例中，背光源可以包括两个或更多个发光二极管串，每个发光二极管以相应的驱动强度驱动。 每个串可以包括来自不同颜色仓的发光二极管，并且可以例如通过脉冲宽度调制或幅度调制来调整相应的驱动强度，以维持目标白点。 在某些实施例中，可以调整驱动强度以补偿由于温度或老化而可能发生的白点偏移。 控制器可以基于来自温度传感器的反馈，来自光学传感器，来自用户输入的反馈或来自包括在背光或系统内的校准数据来调整驱动强度。

公开(公告)号：US08575865B2

公开(公告)日：2013-11-05

申请号：US12410164

申请日：2009-03-24

申请人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

发明人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

IPC分类号： H05B37/02

CPC分类号： G02F1/133603 ,  G09G3/3413 ,  G09G3/3426 ,  G09G2320/041 ,  G09G2320/048 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2360/145

摘要： Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system.

摘要翻译： 提供了用于在基于发光二极管的背光源上维持目标白点的系统，方法和装置。 在一个实施例中，背光源可以包括两个或更多个发光二极管串，每个发光二极管以相应的驱动强度驱动。 每个串可以包括来自不同颜色仓的发光二极管，并且可以例如通过脉冲宽度调制或幅度调制来调整相应的驱动强度，以维持目标白点。 在某些实施例中，可以调整驱动强度以补偿由于温度或老化而可能发生的白点偏移。 控制器可以基于来自温度传感器的反馈，来自光学传感器，来自用户输入的反馈或来自包括在背光或系统内的校准数据来调整驱动强度。

公开(公告)号：US08390562B2

公开(公告)日：2013-03-05

申请号：US12410204

申请日：2009-03-24

申请人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

发明人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G09G3/3426 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/0606 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/145

摘要： Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system.

摘要翻译： 提供了用于在基于发光二极管的背光源上维持目标白点的系统，方法和装置。 在一个实施例中，背光源可以包括两个或更多个发光二极管串，每个发光二极管以相应的驱动强度驱动。 每个串可以包括来自不同颜色仓的发光二极管，并且可以例如通过脉冲宽度调制或幅度调制来调整相应的驱动强度，以维持目标白点。 在某些实施例中，可以调整驱动强度以补偿由于温度或老化而可能发生的白点偏移。 控制器可以基于来自温度传感器的反馈，来自光学传感器，来自用户输入的反馈或来自包括在背光或系统内的校准数据来调整驱动强度。

公开(公告)号：US20100245227A1

公开(公告)日：2010-09-30

申请号：US12410183

申请日：2009-03-24

申请人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

发明人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

IPC分类号： G09G3/36 ,  H05B41/38 ,  H05B41/36

CPC分类号： H05B33/0869 ,  G09G3/3426 ,  G09G5/02 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/0606 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/145 ,  H05B33/0872

摘要： Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system.

摘要翻译： 提供了用于在基于发光二极管的背光源上维持目标白点的系统，方法和装置。 在一个实施例中，背光源可以包括两个或更多个发光二极管串，每个发光二极管以相应的驱动强度驱动。 每个串可以包括来自不同颜色仓的发光二极管，并且可以例如通过脉冲宽度调制或幅度调制来调整相应的驱动强度，以维持目标白点。 在某些实施例中，可以调整驱动强度以补偿由于温度或老化而可能发生的白点偏移。 控制器可以基于来自温度传感器的反馈，来自光学传感器，来自用户输入的反馈或来自包括在背光或系统内的校准数据来调整驱动强度。

公开(公告)号：US20100245228A1

公开(公告)日：2010-09-30

申请号：US12410204

申请日：2009-03-24

申请人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

发明人： Cheng Chen ,  Jun Qi ,  John Z. Zhong ,  Victor H. Yin ,  Wei Chen

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G09G3/3426 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/0606 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/145

摘要： Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system.

摘要翻译： 提供了用于在基于发光二极管的背光源上维持目标白点的系统，方法和装置。 在一个实施例中，背光源可以包括两个或更多个发光二极管串，每个发光二极管以相应的驱动强度驱动。 每个串可以包括来自不同颜色仓的发光二极管，并且可以例如通过脉冲宽度调制或幅度调制来调整相应的驱动强度，以维持目标白点。 在某些实施例中，可以调整驱动强度以补偿由于温度或老化而可能发生的白点偏移。 控制器可以基于来自温度传感器的反馈，来自光学传感器，来自用户输入的反馈或来自包括在背光或系统内的校准数据来调整驱动强度。

公开(公告)号：US20100207959A1

公开(公告)日：2010-08-19

申请号：US12371480

申请日：2009-02-13

申请人： Jun Qi ,  Wei Chen ,  Moo Kyung Son ,  Victor H. Yin ,  John Z. Zhong

发明人： Jun Qi ,  Wei Chen ,  Moo Kyung Son ,  Victor H. Yin ,  John Z. Zhong

IPC分类号： G09G5/02 ,  G06T1/00

CPC分类号： G09G3/2055 ,  G09G3/3614 ,  G09G2320/0204 ,  G09G2320/0247 ,  G09G2320/0252 ,  G09G2330/021 ,  G09G2340/0428

摘要： A method and system for temporal dithering of pixels in a display. The dithering of the pixels may allow for simulation of 8-bit color from a 6-bit display. Moreover, the dithering of the pixels may be selected to follow a specific pattern to minimize display artifacts, which might otherwise result from interference generated by pixel inversion techniques performed during the pixel dithering. Through application of selective dithering techniques, including utilization of specific dithering patterns, the generation of display artifacts via interference from pixel inversion techniques during the display of an image may be minimized.

摘要翻译： 用于显示器中像素的时间抖动的方法和系统。 像素的抖动可以允许从6位显示器模拟8位颜色。 此外，可以选择像素的抖动以遵循特定模式以最小化显示伪像，否则可能由在像素抖动期间执行的像素反转技术产生的干扰而产生。 通过应用选择性抖动技术（包括使用特定抖动模式），可以最小化在图像显示期间通过来自像素反转技术的干扰的显示伪像的产生。

公开(公告)号：US20100321609A1

公开(公告)日：2010-12-23

申请号：US12488304

申请日：2009-06-19

申请人： Jun Qi ,  Victor H. Yin ,  John Z. Zhong ,  Wei Chen

发明人： Jun Qi ,  Victor H. Yin ,  John Z. Zhong ,  Wei Chen

IPC分类号： G02F1/1335

CPC分类号： G02B6/0053 ,  G02B6/0036 ,  G02B6/0061

摘要： An edge-lit backlight unit for a display is provided. In one embodiment, the backlight unit may include a light guide configured to receive light from a source and emit such light in a broad distribution to a turning film disposed over the light guide. The turning film may be configured to redirect light received from the light guide toward a normal of the turning film. In one embodiment, the light guide may be configured such that peak light distribution therefrom occurs at an incident angle of approximately sixty degrees, with broad light distribution substantially occurring over an angular range between incident angles of thirty-five and eighty-five degrees. Additionally, in one embodiment, the turning film may include multiple prisms that receive and redirect the light emitted from the light guide, and that include apex angles of less than or about sixty degrees. Additional edge-lit backlight units and methods are also disclosed.

摘要翻译： 提供了用于显示器的边缘照明背光单元。 在一个实施例中，背光单元可以包括被配置为从源接收光并且以广泛分布的方式将这种光发射到设置在光导上的转向膜的光导。 转向膜可以被配置为将从光导中接收的光朝向转向膜的法线重定向。 在一个实施例中，光导可以被配置为使得其峰值光分布以大约六十度的入射角发生，其中宽光分布基本上在三十五到八十五度的入射角之间的角度范围内发生。 另外，在一个实施例中，转向膜可以包括多个棱镜，其接收和重定向从光导发射的光，并且包括小于或大约六十度的顶角。 还公开了另外的边缘照明背光单元和方法。

公开(公告)号：US08248554B2

公开(公告)日：2012-08-21

申请号：US12488304

申请日：2009-06-19

申请人： Jun Qi ,  Victor H. Yin ,  John Z. Zhong ,  Wei Chen

发明人： Jun Qi ,  Victor H. Yin ,  John Z. Zhong ,  Wei Chen

IPC分类号： G02F1/1335 ,  F21V7/04

CPC分类号： G02B6/0053 ,  G02B6/0036 ,  G02B6/0061

摘要： An edge-lit backlight unit for a display is provided. In one embodiment, the backlight unit may include a light guide configured to receive light from a source and emit such light in a broad distribution to a turning film disposed over the light guide. The turning film may be configured to redirect light received from the light guide toward a normal of the turning film. In one embodiment, the light guide may be configured such that peak light distribution therefrom occurs at an incident angle of approximately sixty degrees, with broad light distribution substantially occurring over an angular range between incident angles of thirty-five and eighty-five degrees. Additionally, in one embodiment, the turning film may include multiple prisms that receive and redirect the light emitted from the light guide, and that include apex angles of less than or about sixty degrees. Additional edge-lit backlight units and methods are also disclosed.

摘要翻译： 提供了用于显示器的边缘照明背光单元。 在一个实施例中，背光单元可以包括被配置为从源接收光并且以广泛分布的方式将这种光发射到设置在光导上的转向膜的光导。 转向膜可以被配置为将从光导中接收的光朝向转向膜的法线重定向。 在一个实施例中，光导可以被配置为使得其峰值光分布以大约六十度的入射角发生，其中宽光分布基本上在三十五到八十五度的入射角之间的角度范围内发生。 另外，在一个实施例中，转向膜可以包括多个棱镜，其接收和重定向从光导发射的光，并且包括小于或大约六十度的顶角。 还公开了另外的边缘照明背光单元和方法。

公开(公告)号：US09454025B2

公开(公告)日：2016-09-27

申请号：US13600862

申请日：2012-08-31

申请人： John Z. Zhong ,  Cheng Chen ,  Shih-Chang Chang ,  Victor H. Yin ,  Shawn R. Gettemy ,  Wei Chen

发明人： John Z. Zhong ,  Cheng Chen ,  Shih-Chang Chang ,  Victor H. Yin ,  Shawn R. Gettemy ,  Wei Chen

IPC分类号： G02F1/1345 ,  G02F1/133

CPC分类号： H01L27/3262 ,  G02F1/13306 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/13452 ,  G02F1/1368 ,  G02F2201/42 ,  G06F3/044 ,  H01L25/18 ,  H01L27/1218 ,  H01L27/323 ,  H01L27/3258 ,  H01L27/3276 ,  H01L51/5281

摘要： An electronic device display may have a color filter layer, a thin-film-transistor layer, and a layer of liquid crystal material. The display may have a display cover layer such as a layer of glass or plastic. Adhesive may be used to attach the upper polarizer to the display cover layer. The thin-film transistor layer may have a substrate with upper and lower surfaces. Thin-film-transistor circuitry may be formed on the upper surface. A display driver integrated circuit may be mounted to the lower surface or a flexible printed circuit and may be coupled to the thin-film-transistor circuitry using wire bonding wires. Through vias that are formed through the thin-film-transistor layer substrate may be used in coupling the thin-film-transistor circuitry to the display driver integrated circuit.

摘要翻译： 电子设备显示器可以具有滤色器层，薄膜晶体管层和液晶材料层。 显示器可以具有诸如玻璃或塑料层的显示器覆盖层。 粘合剂可用于将上偏振器附接到显示器盖层。 薄膜晶体管层可以具有具有上表面和下表面的基板。 薄膜晶体管电路可以形成在上表面上。 显示驱动器集成电路可以安装到下表面或柔性印刷电路，并且可以使用引线接合线耦合到薄膜晶体管电路。 通过薄膜晶体管层基板形成的通孔可以用于将薄膜晶体管电路耦合到显示驱动器集成电路。