G09G3/2025

Subpixel circuitry for driving an associated light element, and method, display system and electronic device relating to same

Disclosed is a subpixel circuit 310 comprising: a first switching device 311 responsive to a digital periodic signal V.sub.P to provide a digital control signal V.sub.C relating to a digital data signal V.sub.D, the digital periodic signal V.sub.P defining 2.sup.N+1 time slots within each frame cycle, where N is a predetermined integer. The digital data signal V.sub.D has a predetermined value at a predetermined one of the 2.sup.N+1 time slots; and the subpixel circuit 310 further comprises a second switching device 312 responsive to the control signal Vc to drive an associated light emitting element 320.

Coding for avoiding motion artifacts
11094251 · 2021-08-17 · ·

A method includes representing dots of an image to be displayed within a field by a digital image code. The field is divided into sub-fields which are further divided into a first and second time interval which respectively comprise a first and a second number of equally long time slots. Time slots are assigned to each bit of the digital image code according to each bit's significance. Successive time slots of the first time interval are assigned to one of the bits of the image code and successive time slots of the second time interval are assigned to a different one of the bits of the image code. Within the duration of at least one sub-field, each rows is selected twice for respectively writing a first bit of the image code during the first time interval and writing a second bit of the image code during the second time interval.

Image processing device and liquid crystal projector
11069315 · 2021-07-20 · ·

An image processing device that uses pixels displayed in a liquid crystal panel to display, across a plurality of fields, pixels constituting an image specified with image data includes, a temporary determining unit configured to, based on a gradation level specified for one pixel of a liquid crystal panel and a gradation level specified for another pixel adjacent to the one pixel in one field, make temporary determination on whether to correct the gradation level of at least one of the one pixel or the other pixel, and a cancellation unit configured to cancel the temporary determination when the gradation level specified for each of the one pixel and the gradation level specified for the other pixel are identical to a gradation level in a field that precedes, by a plurality of the fields, the one field.

LIQUID CRYSTAL DISPLAY DEVICE

A liquid crystal display device comprising a backlight and a pixel portion including first to 2n-th scan lines, wherein, in a first case of expressing a color image, first pixels controlled by the first to n-th scan lines are configured to express a first image using at least one of first to third hues supplied in a first rotating order, and second pixels controlled by the (n+1)-th to 2n-th scan lines are configured to express a second image using at least one of the first to third hues supplied in a second rotating order, wherein, in a second case of expressing a monochrome image, the first and second pixels controlled by the first to 2n-th scan lines are configured to express the monochrome image by external light reflected by the reflective pixel electrode, and wherein the first rotating order is different from the second rotating order.

SYSTEMS AND METHOD FOR IMPROVING OPERATING CHARACTERISTICS OF DISPLAYS

Systems and methods for improving operating characteristics of displays such as liquid crystal on silicon displays.

CONTROL METHOD AND CONTROL DEVICE
20210142742 · 2021-05-13 · ·

A control method or the like is provided capable of suppressing a flicker phenomenon even if frame periods vary in length. The control method is for controlling an emission period and an extinction period of a frame period, which is a period in which one image continues to be displayed. When a signal indicating start of a frame period is detected, as the frame period, n subframe periods that configure the frame period, where n is an integer greater than or equal to 2, are sequentially started from the first subframe period, after a predetermined period of time has elapsed since the detection of the signal. All of the n subframe periods are controlled to have a substantially same length determined in advance and to have a substantially same ratio between the emission period and the extinction period, determined in advance, the ratio being referred to as a duty ratio.

Pan-warping and modifying sub-frames with an up-sampled frame rate

In an embodiment, a method includes accessing a first rendered frame generated at a first frame rate. The method includes generating, based on the first rendered frame, one or more sub-frames at a second frame rate that is higher than the first frame rate. A first sub-frame of the one or more sub-frames is generated by determining a displacement measure associated with an anticipated movement of an optics component of a display system and applying, based on the displacement measure, one or more transformations to the first rendered frame to generate the first sub-frame. The first sub-frame is to be perceived by a user using the optics component of the display system. The method includes outputting the one or more sub-frames for display at the second frame rate. The one or more sub-frames are perceived by the user using the optics component of the display system.

Method for driving a display panel to display image, display apparatus thereof, and driver enabled to perform the method
10971050 · 2021-04-06 · ·

The present application discloses a method for driving a display panel for displaying images. The method includes determining multiple subpixels in a bright area of an image to be displayed by the display panel. The bright area is an image display area having a luminance value maintained greater than a threshold luminance value for a duration longer than a threshold duration. Additionally, the method includes driving the multiple subpixels to emit light alternatingly in a period of alternate light-emission for displaying the image. Furthermore, the method includes driving all adjacent subpixels surrounding any one subpixel that is not emitting light during the period of alternate light-emission to provide luminance rendering to the one subpixel such that the luminance value of the bright area is greater than the threshold luminance value.

Liquid crystal display device

A liquid crystal display device comprising a backlight and a pixel portion including first to 2n-th scan lines, wherein, in a first case of expressing a color image, first pixels controlled by the first to n-th scan lines are configured to express a first image using at least one of first to third hues supplied in a first rotating order, and second pixels controlled by the (n+1)-th to 2n-th scan lines are configured to express a second image using at least one of the first to third hues supplied in a second rotating order, wherein, in a second case of expressing a monochrome image, the first and second pixels controlled by the first to 2n-th scan lines are configured to express the monochrome image by external light reflected by the reflective pixel electrode, and wherein the first rotating order is different from the second rotating order.

Method for processing image data with enhanced grayscale level for display panel

The present application discloses a method for processing image data with enhanced grayscale level for a display panel. The method includes receiving image data with a maximum grayscale level up to (M+N)-bit. The method further includes dividing the image data of the (M+N)-bit to a first set of data including low-order part up to M-bit and a second set of data including high-order part up to N-bit. Additionally, the method includes reconstructing multiple sets of new image data up to N-bit based on the first set of data and the second set of data. Furthermore, the method includes forwarding the multiple sets of new image data to the driver circuit respectively in multiple divisional time periods and driving the display panel to display image using the multiple sets of new image data.