公开(公告)号：CA2835125A1

公开(公告)日：2012-11-22

申请号：CA2835125

申请日：2012-05-11

Applicant: PIXTRONIX INC

Inventor： GANDHI JIGNESH ,  BUCKLEY EDWARD

IPC: G09G3/20 ,  G09G3/34

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.

公开(公告)号：WO2015006142A2

公开(公告)日：2015-01-15

申请号：PCT/US2014045306

申请日：2014-07-02

Applicant: PIXTRONIX INC

Inventor： YARAS FAHRI ,  BUCKLEY EDWARD

IPC: G09G3/34

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。