The tristimulus values (X, Y, Z) of the color need to be faithfully matched when a specified color is to be reproduced on the display. In RGB color system, there is only one solution, but in multi‐primary‐color system, there will be numerous combinations due to the color redundancy. In this paper, a 5.5‐inch 6‐primary‐color module was made with resolution of FHD (1920 x 1080) and a color conversion model was established to solve the problem of color reproduction redundancy.
For safety reasons, the current car's A‐pillars are generally designed to be relatively wide, causing a large visual blind area and resulting in a great safety hazard in driving process[1]. This paper presents a visual display system for the A‐pillar to eliminate the blind area, which combines face detection, pupil detection, gaze calculation and image extraction module, and achieves displaying effect of scene moving with people and seamless splicing. Only the head position is calculated in traditional methods because the head position cannot represent the gaze direction, causing a large spliced error. In this paper, when calculating the spliced image, gaze calculation algorithm is added to the visual system, which greatly improves the calculation accuracy of the spliced image, reaching 1.6°, and improves final splicing performance.
Displays that employ RGBW primaries have demonstrated greater power efficiency than similar displays with only RGB primaries. Unfortunately, RGBW systems with algorithms that use white to augment luminance generally have color layer noise affected the visual effect and need to be solved. Color layer noise visually shows the phenomenon of uneven color transition, showing a banded change. According to the cause of the color layer noise, we propose an algorithm to reduce the brightness difference between adjacent pixels in the location of color layer noise. Firstly, the gradient feature is used to mark the details in RGB space in order to distinguish the color layer from the texture details. Then the color layer is detected in RGBW space and the brightness of the color layer is smoothed to reduce the brightness difference of the adjacent pixels. The experiment on 6.5 inch RGBW TFT‐LCD screen show that the algorithm can effectively remove the color layer, and the details are lossless.
In this paper, the geometric model of the viewing zone is established and the factors that influence the distribution of the viewing zone are analyzed. For the first time, the impact of input image of display panel is considered. Through simulation, not only the best viewing distance and the distance between adjacent viewpoints can be obtained, but also the change of the viewing zone with the input image can be obtained. The geometric model makes the calculation of the view zone and the design layout more accurate and simple.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.