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。

公开(公告)号：US20140118384A1

公开(公告)日：2014-05-01

申请号：US13664116

申请日：2012-10-30

Applicant: PIXTRONIX, INC.

Inventor： Edward Buckley ,  Fahri Yaras

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G3/3413 ,  G09G3/3433 ,  G09G2310/0235 ,  G09G2330/021 ,  G09G2340/06 ,  G09G2360/16

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for selecting display primary colors based on comparative energy consumption analysis. According to one aspect, an input is configured to receive image data corresponding to an image frame. The image data includes pixel data associated with at least three input contributing colors (ICCs). Subfield derivation logic is configured to derive for the received image frame a first set of color subfields corresponding to the ICCs and a second set of color subfields including a composite contributing color (CCC) subfield and a set of replacement ICC subfields derived based on the CCC subfield. Power management logic is configured to calculate an energy consumption comparison between the presentation sets of color subfields and to selectively cause the presentation of one of the sets of color subfields based on the calculated energy consumption comparison.

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，用于基于比较能量消耗分析来选择显示原色。 根据一个方面，输入被配置为接收对应于图像帧的图像数据。 图像数据包括与至少三个输入贡献颜色（ICC）相关联的像素数据。 子场导出逻辑被配置为为接收的图像帧导出对应于ICC的第一组彩色子场和包括基于CCC导出的复合贡献色（CCC）子场和一组替换ICC子场的第二组彩色子场 子场 功率管理逻辑被配置为计算彩色子场的呈现集合之间的能量消耗比较，并且基于所计算的能量消耗比较选择性地引起所述彩色子场集合中的一个的呈现。