LED lights display used in many ways, the emerging field of LED display industry, the technical aspects of development tend to have many deficiencies. This article will discuss the key technical issues need to be resolved, attributed to “three high and one low”, ie, high light efficiency, high color rendering, high reliability and low cost technology to achieve low cost and its essence is also a technical problem.
Of course, to solve these technical problems also need a series of measures displayed in the LED industry chain. Such as the use of new technologies, new structure, new processes, new materials. In this paper, stresses v. to take the technical route and its direction, and hope that through this article is described in the product innovation of the LED industry entrepreneurs.
The following from the “three high and one low” high light efficiency, high color rendering, high reliability and low cost:
High light efficiency
The luminous efficiency for the LED display can be said to be an important indicator of the energy saving effect, and effect of the luminous efficiency there to be strengthened in order to really to do to solve technical problems related to all aspects of the high light efficiency, from the industrial chain, and then how to achieve high light effect it? This article will specifically compete to explore the epitaxy, packaging, lighting, etc. to solve technical problems.
A. Improve the internal quantum efficiency and external quantum efficiency.
Two. To improve encapsulation efficiency of the light and reduce the junction temperature.
3. Improve the lighting of the light extraction efficiency.
High color rendering
LED display the quality of light and color, including color temperature, color, light and color fidelity, light color natural tones to identify the degree of visual comfort. Here we only discuss and resolve the problem of the color temperature and color. Production of high-color LED display light, will lose more light efficiency, and to take care of these two factors in the design. Of course, to improve the high color rendering must also consider the combination of the three primary colors RGB. Here I have three ways to:
A. Multi-primary color phosphors.
Two. RGB multi-chip combination.
3. Fluorescent powder and chips.
High reliability
Including the failure rate, life expectancy and other indicators. But in the application but there is a different understanding and elaboration. High reliability refers to the ability of the product under specified conditions and provisions within the time to complete the required function. LED fails categories have a serious failure to failure and parameters. Life is the value of the product reliability characterization. : Generally refers to the statistical average of a large number of components in terms of the life of the LED devices is the meaning of this description. But affect the LED street lights chip manufacturing, packaging, thermal resistance, heat and other factors curtain product reliability. Speaking of LED display products based on the implementation of comprehensive quality control for the 2:00:
A. Reduce the loss of efficiency.
Two. Extend the depletion time to failure.
Reduce product cost
Many consumers in the purchase of LED display at all times feel that price is too high, so the contention that this many LED spot display entrepreneurs have taken the appropriate measures to reduce costs in addition to mass production, mainly from the technical to take measures to reduce costs approach, ways. In epitaxial silicon, package, driver, heat, reduce costs, a fundamental solution to the cost of LED display products. Specific talk about the following four aspects:
A. Epitaxial silicon link to ways to reduce costs.
Two. The package links lower costs.
3. Lighting aspects of cost reduction methods.
4. Other ancillary cost reduction
These are mainly from the high light efficiency, high color rendering, high reliability and low cost of the four technology to solve the LED display technology and take corresponding measures, total Overall, through the adoption of new technologies, new processes, new structure, new materials and other measures to achieve a high luminous efficiency of LED display, high color rendering, high reliability and low-cost outside the deeper point of view, should be to improve the quality of energy efficiency and light color as the LED display higher, so the real people provide products on demand!