Results 91 to 100 of about 3,079 (181)
Highly collimated backlight for liquid crystal displays
In this work, we present the design of a collimated backlight design that can be used for a liquid crystal display. The design is based on a hexagonal array of white light emitting diodes (LEDs) in combination with two arrays of lenses.
Stuyven, Gert +11 more
core +1 more source
Switchable‐privacy displays can be used to protect sensitive data in public spaces and to avoid driver distraction on codriver displays. The key optical parameters are the luminance in public and privacy modes, measured over the viewing angle, and the image quality for the intended observers.
Karlheinz Blankenbach
wiley +1 more source
Backlight Dimming in Power-Aware Mobile Displays
This paper presents a temporally-aware backlight scaling (TABS) technique for video streams. The goal is to maximize energy saving in the display system by means of dynamic backlight dimming subject to a user-specified tolerance on the video distortion ...
Ali Iranli
core
Subjective comparison of brightness preservation methods for local backlight dimming displays [PDF]
Local backlight dimming is a popular technology in high quality Liquid Crystal Displays (LCDs). In those displays, the backlight is composed of contributions from several individually adjustable backlight segments, set at different backlight luminance ...
Mantel, Claire +5 more
core +1 more source
Analysis of the LED Backlight Unit with a Diffusive Light Guide Plate
在現代資訊科技的演化進步中,顯示器一直是個很重要的一環,當傳統的CRT螢幕漸漸被TFT-LCD所取代後,平面顯示科技就成為了目前的主流技術,而且在環保議題倍受重視的今天,較高發光效率設計與較環保的光源如LED光源的應用就變得越來越重要。由於LED相較於CCFL燈管具有無汞、高色彩飽和度、快速反應及壽命長等特點,所以被視為下一代平面顯示器的重要替代光源。 本論文主要討論的是LCD顯示器中的背光模組設計,我們使用了LED作為主要的光源,並應用了折疊式混光設計,將可以縮短混光所需的距離 ...
王英力, Wang, Ying Li
core
A Taguchi-based genetic algorithm (TBGA) is adopted in an adaptive neuro-fuzzy inference system (ANFIS) to optimize the micro-structure parameters of backlight modules (BLMs) in liquid-crystal displays.
Jinn-Tsong Tsai +2 more
doaj +1 more source
A Nigh-Vision-Compatible LED Backlight for Military Applications
This paper describes a backlight system that can not only reach high luminance but perform a wide color gamut with NVIS compatibility. The backlight consists of red (R), green (G), blue (B), and amber (A) four colors LEDs.
Guo Qiang Lv, Qi Bin Feng, Yun Fei Chang
core +1 more source
In this research, we introduce an advanced methodology for the calculation of bulk light sources tailored for free-form surface design, focusing on the principle of energy conservation.
Jo-Hsiang Chen +5 more
doaj +1 more source
Dynamic backlight scaling optimization for mobile streaming applications
—With the increasing variety of mobile applications, reducing the energy consumption of mobile devices is a major challenge in sus-taining multimedia streaming applications.
Pi-cheng Hsiu +2 more
core +1 more source
KEYBOARD BACKLIGHT TURN-OFF WHILE ENTERING USERNAME/PASSWORD [PDF]
In industrial PC (both notebook and desktop), there are product models providing backlight keyboard. It’s convenient for a user’s typing in dark environment.
INC, HP
core +1 more source

