Abstract: Light sources of a backlight are configured to customize the shape of light emitted from the clusters. The clusters are activated as a unit and modulated as to brightness, but of the customized shape. All clusters can have a similar customized PSF, or the customization of each cluster may be varied in real time. Real time changes of a clusters PSF may be based, for example, an image or a region of the image to be displayed using the clusters.

Abstract: Paper towel dispenser apparatus and method wherein one or more targets are connected to a rotatable toweling support roller. A sensor senses capacitance changes caused by the rotating roller and the one or more targets and sends signals to a controller to control rotation of the roller.

Abstract: Luminosity of individual LED light sources is measured and a forward voltage control of each LED is set so that each LED has a pre-determined (e.g., uniform) luminosity at a same modulation level. The LEDs are then driven via a modulation technique such as PWM, PCM, polyphase, etc. according to lighting requirements. The LEDs are, for example, a backlight of a dual modulation HDR LCD display system, and the lighting requirements are local dimming signals for the display.

Abstract: Light sources of a backlight are configured to customize the shape of light emitted from the clusters. The clusters are activated as a unit and modulated as to brightness, but of the customized shape. All clusters can have a similar customized PSF, or the customization of each cluster may be varied in real time. Real time changes of a clusters PSF may be based, for example, an image or a region of the image to be displayed using the clusters.

Abstract: A delta detection method for detecting capacitance changes caused by relative movement between a physical object and a capacitance sensor.

Abstract: Power levels of a backlight are adjusted in a number of ways and based on a number of criteria. The adjustments result in a lower power consumption and, in some cases, may enhance audience attention to important objects in a scene. The adjustments comprise, for example, a combination of ramping down power (lowering final display brightness) in concert with corresponding compensatory LCD adjustments (increasing final display brightness). The adjustments may also include, for example, system dimming after ramp down/LCD adjustments are exhausted, or the shifting of an LDR2HDR curve.

Abstract: Systems and methods of image processing are provided for a display having a light source modulation layer and a display modulation layer. A section of a perceptual curve, such as a DICOM curve, is extracted for each frame of image data, based on a profile of expected luminance on the display modulation layer from light emitted by the light source modulation layer. The section of the perceptual curve may be used to determine a desired-total response curve which maps display modulation layer input control values to corresponding output luminance values. The desired-total response curve and a display modulator-specific response curve may be applied to image data to generate control values for driving the display modulation layer.

Abstract: A method for driving a solid-state illumination source to emit light having a brightness determined by a control value involves selecting a control mode based at least in part on the control value. In one embodiment a constant current is supplied to the solid-state illumination source for control values in a low range, a frequency-modulated (FM) current is supplied to the solid-state illumination source for control values in a mid range and a pulse-with modulation (PWM) current is supplied to the solid-state illumination source for control values in an upper range.

Abstract: Luminosity of individual LED light sources is measured and a forward voltage control of each LED is set so that each LED has a pre-determined (e.g., uniform) luminosity at a same modulation level. The LEDs are then driven via a modulation technique such as PWM, PCM, polyphase, etc. according to lighting requirements. The LEDs are, for example, a backlight of a dual modulation HDR LCD display system, and the lighting requirements are local dimming signals for the display.