A projector includes a light modulator, and a controller communicatively coupled to: an image source that provides frames to drive the light; and a light source arranged to illuminate the modulator according to colors. The controller, for a given image frame and given color: determines headroom of highest brightness pixels of the given frame, the headroom representing a difference between a peak brightness of a peak throughput of the modulator and a respective highest brightness associated with the highest brightness pixels; reduces a light source brightness to correspond to a peak light source brightness reduced by the headroom; controls highest brightness regions of the modulator to the peak throughput; and, based on reduced light source brightness, the controller controls lowest brightness regions of the modulator to a respective low-brightness throughput that maintains an about constant given low brightness output by the lowest brightness regions of the modulator across the frames.

A projector includes a light modulator, and a controller communicatively coupled to: an image source that provides frames to drive the light; and a light source arranged to illuminate the modulator according to colors. The controller, for a given image frame and given color: determines headroom of highest brightness pixels of the given frame, the headroom representing a difference between a peak brightness of a peak throughput of the modulator and a respective highest brightness associated with the highest brightness pixels; reduces a light source brightness to correspond to a peak light source brightness reduced by the headroom; controls highest brightness regions of the modulator to the peak throughput; and, based on reduced light source brightness, the controller controls lowest brightness regions of the modulator to a respective low-brightness throughput that maintains an about constant given low brightness output by the lowest brightness regions of the modulator across the frames.

Method and arrangements (431; 433; 1000), for provision of pixel values for readout from pixels of an image sensor (431). It is obtained (501) information indicating a threshold pixel value and a window at, or around, maximum, WAM, width (257; 357; 657) corresponding to a number of pixels. Pixels of the image sensor (431) are exposed whereby the exposed pixels attain analogue pixel values. It is identified (503) a pixel (255; 355; 655) in respective image sensor column (252; 352) whose analogue pixel value during said exposure was first in said respective column (252; 352) to reach or pass said threshold pixel value. Said identified respective pixel group (255; 355; 655) is associated (505) with a respective certain WAM position of a respective WAM (258; 358; 658) in said respective image sensor column (252; 352) with said WAM width (257; 357; 657). It is provided (506), for parallel readout per WAM position and based on said exposure, pixel values of pixels associated with the same WAM position (364; 664) in their respective WAM (258; 358; 658).

Method and arrangements (431; 433; 1000), for provision of pixel values for readout from pixels of an image sensor (431). It is obtained (501) information indicating a threshold pixel value and a window at, or around, maximum, WAM, width (257; 357; 657) corresponding to a number of pixels. Pixels of the image sensor (431) are exposed whereby the exposed pixels attain analogue pixel values. It is identified (503) a pixel (255; 355; 655) in respective image sensor column (252; 352) whose analogue pixel value during said exposure was first in said respective column (252; 352) to reach or pass said threshold pixel value. Said identified respective pixel group (255; 355; 655) is associated (505) with a respective certain WAM position of a respective WAM (258; 358; 658) in said respective image sensor column (252; 352) with said WAM width (257; 357; 657). It is provided (506), for parallel readout per WAM position and based on said exposure, pixel values of pixels associated with the same WAM position (364; 664) in their respective WAM (258; 358; 658).

A mirrorless head-up display device includes a visible light generating device configured to convert electrical energy into visible light and to project the visible light toward a windshield without using a mirror, and a driver device electrically connected to provide driving signals thereto, wherein the visible light generating device is implemented as a display panel including multiple light emitting elements corresponding to the size of a screen projected on the windshield, and is divided into blocks whose optical output is individually controllable.

A mirrorless head-up display device includes a visible light generating device configured to convert electrical energy into visible light and to project the visible light toward a windshield without using a mirror, and a driver device electrically connected to provide driving signals thereto, wherein the visible light generating device is implemented as a display panel including multiple light emitting elements corresponding to the size of a screen projected on the windshield, and is divided into blocks whose optical output is individually controllable.