People experience various lights in daily life, such as sunlight through leaves and candle light. However, digital contents shown in common LCDs cannot express these impressive lights. In this paper, we propose a novel display technique, AugmentedBacklight, which can express impressive lights in the real world by expanding the LCD backlight. The system mainly consists of a transparent LCD, a sc...

Ki-Chan Lee Seung-Hwan Moon Brian Berkeley Sang-Soo Kim Abstract — Thin-film-transistor liquid-crystal displays (TFT-LCDs) have the largest market share of all digital flat-panel displays. An LCD backlighting system employing a three-color red-green-blue lightemitting diode (RGB-LED) array is very attractive, considering its wide color gamut, tunable white point, high dimming ratio, long lifeti...

We present a high image quality head up display (HUD) based on the local dimming liquid crystal (LCD). The proposed HUD provides white luminance to improve day-time visibility and low black cope with postcard effect during night by technique. To reduce computational complexity, pixel-based boosting values for pixel compensation are computed simple bi-linear interpolation, complex power function...

Cold cathode fluorescent lamps (CCFLs) are commonly used as a backlight source for color liquid crystal displays (LCDs) used in notebook computers and portable electronic devices. These lamps require a high ac voltage for ignition and operation. The required ignition voltage is typically double the operating voltage and increases at cold temperatures. Figure 1 shows the operating voltage of lam...

Coherent backlight is an essential component for holographic displays. In this paper, a compact design of edge-lit coherent backlight featuring two holographic optical elements for two-dimensional beam expansion is presented. In experiments, the input laser beam is magnified by a factor of 89 with a diffraction efficiency of 4.3%. More importantly, holographic images can be successfully reconst...

The approach for autodesign of optical characteristics of backlight units is considered. Suggested software solution allows to find optimal configuration of scattering structure providing necessary distribution of output light. The results of car speedometer design is presented. © 2012 EOS OSJ

In order for structured light methods to work outside, the strong background from the sun needs to be suppressed. This can be done with bandpass filters, fast shutters, and background subtraction. In general this last method necessitates the sensor system to be stationary during data taking. The contribution of this paper is a method to compensate for the motion if the system is moving. The key...