Ultra-slim Lcd Tv Enabled By An Edge-lit Led Backlight System

摘要

Although edge-lit backlighting technology is mature in smaller-sized applications such as notebook PCs and desktop monitors, until now it has not been scalable to large-sized LCD TV. Significant technical barriers must be overcome in order to be able to mass-produce an edge-lit ultra-slim TV module. First, the module needs to attain a sufficient level of mechanical strength and thermal reliability. Accomplishing this will require panel makers to cooperate more closely with set makers. Secondly, the edge-type TV module must be energy efficient. To achieve this, it is more cost effective to employ an efficient light source and improved optical components than to try to solve the problem simply by way of thermal management. With this point in mind, the edge-lit ultra-slim TV can indeed contribute toward a green TV solution. Finally, the advanced global-dimming technique plays a particularly useful role in reduc- ing overall power consumption, hence increasing efficiency and improving reliability. This technique also provides considerable enhancement to the contrast ratio and results in nearly ideal gamma characteristics. Therefore, it is expected that the ultra-slim edge-lit TV module will become increasingly popular with ongoing improvements being made in panel transmittance and LED efficiency.