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: 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: 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: This disclosure provides systems, methods and apparatus for improving light output resolution of a backlight by individually controlling light sources in the backlight. Illumination intensity levels of light sources are individually controlled such that an overall illumination intensity level of all the light sources is substantially equal to a desired whole backlight illumination intensity value. The individual illumination levels of the light sources or a group of the light sources is controlled such that the backlight is uniformly illuminated. In some implementations, the illumination intensity levels are varied over different portions of an illumination period to provide uniform illumination of the backlight.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying images using a 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 a FSCC 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 FSCC such that an output by the display of the generated subframes results in the display of the current image frame.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying images using at least five contributing colors (CCs). The at least five CCs include three input contributing colors (ICCs) and at least two composite contributing colors (CCCs). Each CCC is formed from the combination of at least two of the ICCs. According to one aspect, an input is configured to receive image data corresponding to an image frame, where the image data includes pixel intensity values for each of three ICCs. Subfield derivation logic is configured to process the received image data for the image frame to derive color subfields for the three ICCs and the at least two CCCs, and output logic is configured to output the color subfields for the at least five CCs to a plurality of display elements for display of the image frame.

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: 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: The present invention relates to a holographic display and more particularly to an apparatus and methods for a curved electro-holographic display. The apparatus mainly comprises; at least one light source for providing lights, at least one axially symmetric mirror for reflecting the fights coming from light source, at least one spatial light modulation system consists of one or more than one spatial light modulators for modulating lights reflecting from the axially symmetric mirror and forming a desired optical reconstruction above the axially symmetric mirror by reflecting the lights which is seen from a viewing zone by the user.