A local-dimming display generally includes a light source configured to generate a backlight, a first display aligned with the light source and having multiple first pixels, wherein each first pixel is configured to selectively pass and block the backlight, and a second display aligned with the first display and having multiple second pixels. A particular pixel is controlled to pass the backlight. The particular pixel corresponds with an aligned pixel and multiple parallax pixels of the first pixels controlled at a first transmit level, and multiple neighboring pixels of the first pixels controlled at one or more second transmit levels. The one or more second transmit levels are less than or equal to the first transmit level. The first pixels cooperating at the first transmit level and the second transmit levels selectively presents the backlight to the second display with a declining intensity pattern in the neighboring pixels.

A display system includes a rendering engine, a display driver, an image source, and display optics. The rendering engine receives a non-uniform resolution distribution pattern and generates one or more rendered pixels. The display driver receives the one or more rendered pixels and generates one or more display driver pixels. The image source device receives the one or more display driver pixels and generates an image. And the display optics receives the image and provides a display optics image having a space-variant resolution that follows the non-uniform resolution distribution pattern.

Disclosed is a method and an apparatus for backlight control and a display device. The apparatus comprises: a block brightness module for calculating an initial brightness value of each backlight block in a backlight source according to initial image data; a filtering module for performing spatial filtering and temporal filtering on the initial brightness value of each backlight block to obtain an adjusted brightness value of each backlight block; a control module for generating a brightness control signal according to the adjusted brightness value of each backlight block to adjust brightness of the backlight source. An intermediate brightness value of each backlight block is no less than the initial brightness value of that backlight block. Based on backlight adjustment for reducing power consumption, display effect reduction on a portion of image due to uneven brightness of the portion of the image during the spatial filtering is avoided.

An electronic device including a processor and a display device is disclosed. The processor is configured to receive data and to generate at least one code according to an angular display algorithm. The at least one code includes an angular profile of the data. The display device is coupled to the processor and configured to receive the at least one code from the processor and to display the at least one code according to the angular profile. The angular profile includes a plurality of light intensities corresponding to a plurality of viewing angles. A number of the at least one code is adjusted according to a security of the data, and when the number of the at least one code increases, the number of the plurality of viewing angles to display the at least one code increases.

A control circuit configured to control a display panel includes a display driver circuit, a touch sensing circuit and a fingerprint sensing circuit. The touch sensing circuit, coupled to the display driver circuit and the fingerprint sensing circuit, is configured to detect a finger touch on the display panel, determine a position of the display panel on which the finger touch is detected, and send information associated with the position to the fingerprint sensing circuit. The fingerprint sensing circuit is configured to perform fingerprint sensing on at least one zone corresponding to the position and receive fingerprint image signals from the at least one zone correspondingly.

The invention relates to a system for displaying information to a user, comprising: an emission device arranged to emit light so as to display information to a user, the emission device being adapted to emit the light in a pulsed manner so that the intensity of the light varies between a high value and a low value, a selective viewing device comprising a panel, the panel being adapted so that the user can view the light which is emitted by the emission device through that panel so as to visually perceive the information being displayed, the panel having a variable transparency which can be varied between a state of high transparency and a state of low transparency, the system being adapted to synchronize the emission device and the selective viewing device so that the states of the emission device emitting light at a high-intensity value and the states of the panel of the selective viewing device of high transparency overlap in time, the emission device being adapted so that the light is emitted in a pulsed manner with a duty cycle of less than or equal to 1/10, wherein the panel of the selective viewing device is adapted to operate at essentially the same duty cycle.

The present invention provides a backlight module and a method for calculating viewing angle for an unknown backlight module. In the present invention, brightness-viewing angle values of the unknown backlight module can be calculated according to the color saturation-viewing angle data of the unknown backlight module at specific viewing angles, and thus are taken to deploy the brightness-viewing angle values of a produced backlight module to be as the same as the brightness-viewing angle values of the unknown backlight module.

Systems and methods for preserving a pulse width modulation (PWM) resolution while increasing the frequency of a pulse width modulation (PWM) clock are provided. An electronic display backlight system may include a backlight element and backlight dimming circuitry. The backlight element may be driven according to a pulse width modulation (PWM) signal over a PWM clock cycle equal to a multiple M of a baseline PWM clock frequency associated with a baseline PWM resolution. The backlight dimming circuitry may receive a brightness code of the baseline PWM resolution and generate the PWM signal at least in part by dividing the brightness code by M.

A reflective-type display screen and a control method thereof, and a display device are provided. The reflective-type display screen comprises, a display panel, a compensation light source, a detector module and a processor module. The display panel comprises a reflection surface, the display panel is configured to reflect light by the reflection surface to realize display; the compensation light source is in the display panel; the detector module is on a light-outputting side of the display panel and is configured to acquire an intensity of ambient light outside the display screen; and the processor module is respectively connected with the detector module and the compensation light source and is configured to control operation of the compensation light source based on the intensity of the ambient light acquired by the detector module.

The present application provides a simultaneous emission pixel compensation circuit and a display panel. Through adopting a transistor with a double-gate structure as a driving transistor, and through a bottom gate to regulate a threshold voltage of the driving transistor, compensation of positive and negative drift of the threshold voltage of the driving transistor is realized. Through introducing simultaneous emission technology and adopting a global signal to perform corresponding control, a number of a scan signal to scan row by row is decreased to only one, such that a circuit structure is simple and a number of transistors required is less, thereby facilitating integration in a panel.