Summary light guide - guide plate presentation

Review of the light guide plate light guide plate using optical-grade acrylic / PC board, and then has a very high reflectance of light without absorbing high-tech materials, in optical grade acrylic sheet on the bottom surface with UV screen printing techniques guide spot. The use of optical-grade acrylic sheet absorb light emitted from the lamp to remain in the optical-grade acrylic sheet surface, when the light shines the light of each guide point, the reflected light will be diffused to all angles, then destroyed by the light guide reflection condition front exit. Through a variety of density, light guide point sizes, make the light guide plate uniform light emission. The use of reflecting sheet that is exposed to the bottom surface of the light reflected back to the light guide plate, to improve the use efficiency of light. I. Introduction guide plate light guide plate design principles from the laptop LCD screen, is the linear light source into a surface light source of high-tech products. Optical grade acrylic (PMMA) / PC to the substrate, the use of LCD monitor and notebook computers backlight technology, high light conductivity through the light guide point, the computer calculates the light guide, enabling the light guide plate refract light surface light source are state manufacturing molding. Products using digital UV spectroscopy principle and printing technology combined and made at a constant temperature, humidity, dust-free environment conditions. With ultra-thin, ultra-bright, ?? /? @? [Optical uniformity, energy saving, environmental protection, no dark areas, durable, easy to yellowing, installation and maintenance simple and quick, and other distinctive characteristics. Second, because of the light guide plate light guide classification in general shape, production methods and functions have different classifications, and there is no uniform method of points, after finishing A, divided according to the shape: flat and wedge (oblique board) plate: from the light guide plate at the view rectangle. Wedge: From the point of view of one side of the optical thickness of one side of a thin wedge (triangular) shape. B, according to the network production methods: printing and non-printing printing style: After the completion of the light guide plate contouring, in printed form the dots printed on the reflective surface, IR and UV is divided into two kinds. Non-printed type: Forming the outlets when the light guide plate is formed directly on the reflective surface. It is divided into chemical etching (Etching), precision mechanical characterization method (V-cut), optical lithography method (Stamper), internal diffusion. C, according to the light way: side into the light (bulb and LED) and direct type. Side into the light type: the luminous body (bulb or LED) placed on the side of the light guide plate. Direct type: the luminous body (bulb or LED) placed at the bottom of the light guide plate. D, according to the molding production methods: injection molding and trim molding. Injection molding: The injection molding machine of optical grade PMMA particles using high-temperature, high-pressure injection molding mold cooling cutting forming: The optical grade PMMA raw sheet after cutting process to complete the finished product. Third, the characteristics of the light guide plate 1, can be cut to the desired size, you can splice use, simple process, making convenient 2, an optical conversion rate (higher than traditional board more than 30%), light uniformity, long life indoors the normal use of more than eight years, safety and environmental protection, durable and reliable all suitable for indoor and outdoor 3, the same area of ??the light emitting brightness, high luminous efficiency, low power consumption 4, can be made into shaped, such as round, oval, circular, triangular, etc. 5, the same brightness, you can use a thinner product, cost 6, you can use any light source, line source point conversion to make the surface light source, the light source comprises LED CCFL (cold cathode fluorescent lamp), fluorescent tubes.