公开(公告)号：US20160351104A1

公开(公告)日：2016-12-01

申请号：US14726147

申请日：2015-05-29

Applicant: Pixtronix, Inc.

Inventor： Fahri Yaras ,  Edward Buckley

IPC: G09G3/20

CPC classification number: G09G3/2081 ,  G09G3/2003 ,  G09G3/2022 ,  G09G3/3413 ,  G09G3/3433 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2310/0235 ,  G09G2320/0233 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2340/0428

Abstract: Systems, methods and apparatus, including computer programs encoded on computer storage media, of this disclosure allow for forming an image frame on a display device. In one aspect, a controller associated with a display device can be configured to correct for output white point shift due to variation, across separate color subfields of an image frame, in the respective number of subframes or the respective subframe weights. The controller can determine aggregate subframe weights for at least two color subfields and adjust at least one display parameter based on the determined aggregate subframe weights, to shift the output white point towards a white point of a target color gamut. The display parameter(s) can include a duty cycle of a color subfield, tristimulus coordinates of light used to illuminate a color subfield or gamut mapping function. The controller can display the image frame according to the adjusted display parameter(s).

Abstract translation: 本公开允许在计算机存储介质上编码的计算机程序的系统，方法和装置允许在显示装置上形成图像帧。 在一个方面，与显示设备相关联的控制器可以被配置为校正由于在相应数量的子帧或相应的子帧权重中的图像帧的分离的彩色子场的变化引起的输出白点移位。 控制器可以确定至少两个颜色子场的聚合子帧权重，并且基于确定的聚合子帧权重来调整至少一个显示参数，以将输出白点移动到目标色域的白点。 显示参数可以包括彩色子场的占空比，用于照亮彩色子场的光的三色坐标或色域映射函数。 控制器可以根据调整后的显示参数显示图像帧。

公开(公告)号：US20160210934A1

公开(公告)日：2016-07-21

申请号：US14601065

申请日：2015-01-20

Applicant: Pixtronix, Inc.

Inventor： Mark Douglas Halfman ,  Edward Buckley ,  Nakano Taketoshi ,  Brian Finkel ,  James Eakin ,  Jignesh Gandhi ,  Alan Gerald Lewis ,  Robert Myers ,  Fahri Yaras ,  John Fijol

IPC: G09G5/02 ,  G06T1/60 ,  G09G5/10 ,  G06T1/20 ,  G09G5/06 ,  G06K9/46

CPC classification number: G09G5/02 ,  G06K9/4661 ,  G06T1/20 ,  G06T1/60 ,  G09G3/2022 ,  G09G3/2044 ,  G09G3/3406 ,  G09G3/3433 ,  G09G5/06 ,  G09G5/10 ,  G09G2310/0235 ,  G09G2320/0646 ,  G09G2340/0428 ,  G09G2360/144 ,  G09G2360/16

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for enhancing display viewability in high ambient conditions without excessive increase in power consumption. In one aspect, a controller associated with the display device can be configured to obtain an indication of ambient light conditions from an ambient light sensor or from a host device hosting the display device. Upon receiving an image frame, the controller can derive a set of color subfields and determine a bit-depth value for each color subfield based on the obtained indication of current ambient light conditions and mapping data which maps ranges of ambient light to respective bit-depth values on a color subfield by color subfield basis. The controller can then generate a number of subframes for each color subfield based on the respective determined bit-depth value and cause the generated subframes to be displayed.

Abstract translation: 本公开提供了系统，方法和装置，包括在计算机存储介质上编码的计算机程序，用于在高环境条件下增强显示器可视性，而不会过度增加功耗。 在一个方面，与显示装置相关联的控制器可以被配置成从环境光传感器或者主持显示装置的主机装置获得环境光条件的指示。 在接收到图像帧时，控制器可以基于获得的当前环境光条件的指示和将环境光的范围映射到相应位深度的映射数据来导出一组彩色子场并确定每个颜色子场的位深度值 通过颜色子字段在颜色子字段上的值。 然后，控制器可以基于相应确定的位深度值为每个颜色子场生成多个子帧，并且使得生成的子帧被显示。

公开(公告)号：US20160055788A1

公开(公告)日：2016-02-25

申请号：US14933718

申请日：2015-11-05

Applicant: Pixtronix, Inc.

Inventor： Jignesh Gandhi ,  Edward Buckley

IPC: G09G3/20

CPC classification number: G09G3/2029 ,  G09G3/2092 ,  G09G3/3413 ,  G09G3/3433 ,  G09G2310/0235 ,  G09G2320/0247 ,  G09G2320/064 ,  G09G2320/0673 ,  G09G2340/0428

Abstract: A display includes pixels and a controller. The controller can cause the pixels to generate colors corresponding to an image frame. The controller can cause the display to display the image frame using sets of subframe images corresponding to contributing colors according to a field sequential color (FSC) image formation process. The contributing colors include component colors and at least one composite color, which is substantially a combination of at least two component colors. A greater number of subframe images corresponding to a first component color can be displayed relative to a number of subframe images corresponding to another component color. The display can be configured to output a given luminance of a contributing color for a first pixel by generating a first set of pixel states and output the same luminance of the contributing color for a second pixel by generating a second, different set of pixel states.

Abstract translation: 显示器包括像素和控制器。 控制器可以使像素产生对应于图像帧的颜色。 根据场顺序颜色（FSC）图像形成处理，控制器可以使显示器使用与贡献颜色相对应的子帧图像集来显示图像帧。 贡献颜色包括分量颜色和至少一种复合颜色，其基本上是至少两种分量颜色的组合。 可以相对于对应于另一分量颜色的多个子帧图像来显示对应于第一分量颜色的更多数量的子帧图像。 显示器可以被配置为通过产生第一组像素状态来输出第一像素的贡献颜色的给定亮度，并且通过产生第二不同的像素状态集合来输出第二像素的贡献颜色的相同亮度。

公开(公告)号：US09134530B2

公开(公告)日：2015-09-15

申请号：US13800418

申请日：2013-03-13

Applicant: Pixtronix, Inc.

Inventor： Javier Villarreal ,  Timothy Brosnihan ,  Mark B. Andersson ,  Edward Buckley ,  Eugene Fike

IPC: G09G5/00 ,  H05K13/00 ,  G02B26/02 ,  B81B3/00

CPC classification number: G02B26/02 ,  B81B3/0054 ,  B81B2201/045 ,  G02B26/023 ,  G09G5/003

Abstract: This disclosure provides systems, methods and apparatus for modulating light to form an image on a display, as well as methods manufacturing such apparatus. The display apparatus includes shutters having asymmetric light obstructing portions extending out from opposing sides of a shutter aperture along an axis of motion of the shutter. Actuators move the shutters laterally along the axis of motion to move the shutter between fully closed, partially open, and fully open states to modulate light, thereby forming an image.

Abstract translation: 本公开提供了用于调制光以在显示器上形成图像的系统，方法和装置，以及制造这种装置的方法。 显示装置包括具有不对称光阻挡部分的快门，该光束阻挡部分沿着快门的运动轴线从快门孔的相对侧延伸出来。 致动器沿着运动轴线横向移动百叶窗，以在完全关闭，部分打开和完全打开状态之间移动快门以调制光，从而形成图像。

公开(公告)号：US09082340B2

公开(公告)日：2015-07-14

申请号：US13939803

申请日：2013-07-11

Applicant: Pixtronix, Inc.

Inventor： Edward Buckley ,  Fahri Yaras ,  Ilias Pappas

IPC: G09G3/30 ,  G09G3/20 ,  G09G3/34

CPC classification number: G09G3/30 ,  G09G3/2022 ,  G09G3/2029 ,  G09G3/3433 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0235 ,  G09G2310/0237 ,  G09G2310/0251 ,  G09G2320/045 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2360/144

Abstract: This disclosure provides systems, methods and apparatus for providing analog control for operating the states of a light modulator in a pixel. In one aspect, a pixel circuit can be coupled to the light modulator, and can control the duration for which the light modulator is operated in an open or closed state based on an analog data voltage. In some implementations, the pixel circuit includes a voltage controlled current source (VCCS), which draws a current of a magnitude that is based on the magnitude of the data voltage. The current drawn by the VCCS can be used to control a charge and a voltage on an actuation capacitor coupled to the light modulator. The rate of change of the voltage on the actuation capacitor, and the duration for which the light modulator is maintained in a particular state, is a function of the data voltage applied to the VCCS.

Abstract translation: 本公开提供了用于提供用于操作像素中的光调制器的状态的模拟控制的系统，方法和装置。 在一个方面，像素电路可以耦合到光调制器，并且可以基于模拟数据电压来控制光调制器在打开或关闭状态下操作的持续时间。 在一些实施方案中，像素电路包括电压控制电流源（VCCS），其根据数据电压的幅度绘制大小的电流。 由VCCS引出的电流可用于控制耦合到光调制器的致动电容器上的电荷和电压。 致动电容器上的电压变化率以及光调制器在特定状态下保持的持续时间是施加到VCCS的数据电压的函数。

公开(公告)号：US20150091932A1

公开(公告)日：2015-04-02

申请号：US14044341

申请日：2013-10-02

Applicant: Pixtronix, Inc.

Inventor： Edward Buckley

IPC: G06T11/00

CPC classification number: G06T11/001 ,  G09G3/2022 ,  G09G2310/0235 ,  G09G2340/06 ,  G09G2360/16

Abstract: This disclosure provides systems, methods and apparatus for improving power efficiency of display devices. In some implementations, a display controller receives data indicative of a plurality of pixel values included in an image frame and derives a plurality of initial component color subfields. The display controller then derives a composite color subfield including a plurality of common composite color intensity values assigned to respective pixel blocks. Each pixel block is associated with a plurality of pixels. The display controller derives a plurality of updated component color subfields based on the initial component color subfields and the composite color subfield.

Abstract translation: 本公开提供了用于提高显示装置的功率效率的系统，方法和装置。 在一些实现中，显示控制器接收指示包括在图像帧中的多个像素值的数据，并且导出多个初始分量颜色子场。 然后，显示控制器导出包括分配给各个像素块的多个公共复合颜色强度值的复合颜色子场。 每个像素块与多个像素相关联。 显示控制器基于初始分量颜色子字段和复合颜色子字段导出多个更新的分量颜色子字段。

公开(公告)号：US20150015616A1

公开(公告)日：2015-01-15

申请号：US13939803

申请日：2013-07-11

Applicant: Pixtronix, Inc.

Inventor： Edward Buckley ,  Fahri Yaras ,  Ilias Pappas

IPC: G09G3/30

CPC classification number: G09G3/30 ,  G09G3/2022 ,  G09G3/2029 ,  G09G3/3433 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0235 ,  G09G2310/0237 ,  G09G2310/0251 ,  G09G2320/045 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2360/144

Abstract: This disclosure provides systems, methods and apparatus for providing analog control for operating the states of a light modulator in a pixel. In one aspect, a pixel circuit can be coupled to the light modulator, and can control the duration for which the light modulator is operated in an open or closed state based on an analog data voltage. In some implementations, the pixel circuit includes a voltage controlled current source (VCCS), which draws a current of a magnitude that is based on the magnitude of the data voltage. The current drawn by the VCCS can be used to control a charge and a voltage on an actuation capacitor coupled to the light modulator. The rate of change of the voltage on the actuation capacitor, and the duration for which the light modulator is maintained in a particular state, is a function of the data voltage applied to the VCCS.

Abstract translation: 本公开提供了用于提供用于操作像素中的光调制器的状态的模拟控制的系统，方法和装置。 在一个方面，像素电路可以耦合到光调制器，并且可以基于模拟数据电压来控制光调制器在打开或关闭状态下操作的持续时间。 在一些实施方案中，像素电路包括电压控制电流源（VCCS），其根据数据电压的幅度绘制大小的电流。 由VCCS引出的电流可用于控制耦合到光调制器的致动电容器上的电荷和电压。 致动电容器上的电压变化率以及光调制器在特定状态下保持的持续时间是施加到VCCS的数据电压的函数。

公开(公告)号：US20150015599A1

公开(公告)日：2015-01-15

申请号：US13939789

申请日：2013-07-11

Applicant: Pixtronix, Inc.

Inventor： Fahri Yaras ,  Edward Buckley

IPC: G09G5/02 ,  G06T11/00

CPC classification number: G06T11/001 ,  G09G3/2037 ,  G09G3/3413 ,  G09G3/3426 ,  G09G3/3433 ,  G09G2310/0235 ,  G09G2320/0271 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

Abstract: This disclosure provides systems, methods and apparatus for improving power efficiency of display devices. Control logic of a display device can use content adaptive backlight control (CABC) for displaying certain image frames with reduced illumination intensity. CABC can be used to determine a scaling factor for scaling up pixel values in an image frame and for scaling down the illumination intensity of a backlight used for illuminating the image frames. The control logic can determine a number of image subframes that have been rendered imperceptible to the human visual system (HVS) due to the reduced illumination intensity of the backlight, and refrain from displaying the determined number of image subframes. The control logic can utilize the additional time made available as a result of not displaying the determined number of subframes to further improve the power efficiency of the display device and/or improve image quality.

Abstract translation: 本公开提供了用于提高显示装置的功率效率的系统，方法和装置。 显示装置的控制逻辑可以使用内容自适应背光控制（CABC）来显示具有降低的照明强度的某些图像帧。 可以使用CABC来确定用于缩放图像帧中的像素值的缩放因子，以及用于缩小用于照亮图像帧的背光的照明强度。 控制逻辑可以确定由于背光的照明强度降低而使人视觉系统（HVS）不可察觉的多个图像子帧，并且不显示所确定数量的图像子帧。 控制逻辑可以利用由于不显示确定数量的子帧而进一步提高显示设备的功率效率和/或提高图像质量的可用附加时间。

公开(公告)号：US20140267445A1

公开(公告)日：2014-09-18

申请号：US13828211

申请日：2013-03-14

Applicant: PIXTRONIX, INC.

Inventor： Fahri Yaras ,  Edward Buckley ,  John Paul Beck

IPC: G09G3/22

CPC classification number: G09G3/2003 ,  G09G3/2022 ,  G09G3/2033 ,  G09G3/2037 ,  G09G3/3406 ,  G09G3/3433 ,  G09G2310/0235 ,  G09G2320/0266 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2340/06 ,  G09G2360/16

Abstract: Systems, apparatus, and methods are disclosed herein for displaying images. One such apparatus includes an input, subfield derivation logic, subframe generation logic, dark subframe detection logic, and output logic. The input is configured to receive image data associated with an image frame. The subfield derivation logic is configured to derive at least one color subfield for the received image frame. The subframe generation logic is configured to generate a plurality of subframes for each of the at least one derived color subfields. The dark subframe detection logic is configured to identify dark subframes. The output logic is configured to, in response to identification of a dark subframe, suppress the outputting of the dark subframe and to modify a display parameter associated with at least one other subframe based on a timing value associated with the identified dark subframe.

Abstract translation: 本文公开了用于显示图像的系统，装置和方法。 一种这样的装置包括输入，子场导出逻辑，子帧生成逻辑，暗子帧检测逻辑和输出逻辑。 输入被配置为接收与图像帧相关联的图像数据。 子场导出逻辑被配置为为接收到的图像帧导出至少一个彩色子场。 子帧生成逻辑被配置为为至少一个派生颜色子字段中的每一个生成多个子帧。 暗子帧检测逻辑被配置为识别暗子帧。 输出逻辑被配置为响应于暗子帧的识别，抑制暗子帧的输出并且基于与所识别的暗子帧相关联的定时值来修改与至少一个其他子帧相关联的显示参数。

公开(公告)号：US20140118427A1

公开(公告)日：2014-05-01

申请号：US14064824

申请日：2013-10-28

Applicant: Pixtronix, Inc.

Inventor： Edward Buckley ,  Fahri Yaras

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/36 ,  G09G3/3413 ,  G09G3/3433 ,  G09G2310/0235 ,  G09G2320/0242 ,  G09G2340/06 ,  G09G2340/16 ,  G09G2360/16

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying images using multiple frame-specific contributing color (FSCC). In one aspect, an input is configured to receive image data corresponding to a current image frame. Contributing color selection logic is configured, based on received image data, to obtain multiple FSCCs for use in conjunction with a set of frame-independent contributing colors (FICCs) to generate the current image frame on a display. In addition, subframe generation logic is configured to process the received image data for the current image frame to generate at least two subframes for each of the FICCs and the obtained multiple FSCCs such that an output by the display of the generated subframes results in the display of the current image frame.

Abstract translation: 本公开提供了系统，方法和装置，包括在计算机存储介质上编码的计算机程序，用于使用多个帧特定贡献颜色（FSCC）显示图像。 一方面，输入被配置为接收与当前图像帧相对应的图像数据。 基于接收到的图像数据配置贡献颜色选择逻辑，以获得与一组与帧无关的贡献颜色（FICC）一起使用的多个FSCC，以在显示器上生成当前图像帧。 此外，子帧生成逻辑被配置为处理当前图像帧的接收图像数据，以为FICC中的每一个和所获得的多个FSCC生成至少两个子帧，使得通过显示生成的子帧的输出导致显示 的当前图像帧。