Composite optical film and manufacturing method thereof
A technology of optical film and light-gathering layer, which is applied in the field of optical film, can solve the problems of reducing the visual satisfaction of LCD users, and achieve the effects of mass production, excellent luminance performance, and consistent efficacy
Inactive Publication Date: 2010-01-13
GLORY SUN OPTO ELECTRONICS CORP
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Problems solved by technology
[0008]In addition, various composite optical films often have rainbow patterns on the surface when light passes through, thus reducing the visual satisfaction of LCD users; it is reported that this rainbow The pattern phenomenon is caused by the regularized geometric configuration and arrangement of the microstructures of the light-gathering layer.
Method used
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Embodiment 1、2
[0064] Embodiments 1 and 2 of the method of the present invention are carried out according to the various operating steps of the aforementioned preparation method of the present invention, and the coated diffusion layer (or light-gathering layer) resin solution is heated at 30 (or 6) m / min Under the traveling speed of , irradiate these solutions with ultraviolet light with a wavelength of 185nm and an irradiation intensity per unit area of 15mW / cm2 to cure the resin contained therein.
[0065] The various operating conditions are shown in Table 1 below. The optical film of the present invention that these two embodiments are made respectively, its section is then as follows figure 2 shown.
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Abstract
The invention discloses a composite optical film with high luminance, high diffusance and no interference of Newton rings, which comprises a base material layer, a diffusion layer and a light condensing layer stacked in sequence, wherein the diffusion layer comprises a diffusion layer resin which comprises a plurality of particles, is adjacent to a particle swarm of the base material layer and fixes the particle swarm; the light condensing layer comprises a light condensing layer resin, forms a light outlet surface and a microstructure unit capable of collectively emitting light rays; and the microstructure unit comprises a plurality of main microstructures regularly arranged. The composite optical film is characterized in that: a joint surface for joining the diffusion layer with the light condensing layer is formed to trend to the particle swarm periphery; the diffusion layer is provided with a plurality of bulges covering at least one particle respectively; and the microstructure unit also comprises a plurality of secondary microstructures which cover at least one bulge respectively, trend to extend between two adjacent main microstructures, and / or extend the covered main microstructures. The composite optical films have consistent efficacy performance between different optics under the circumstance of mass manufacture of production lines.
Description
technical field [0001] The invention relates to an optical film, in particular to a composite optical film suitable for being installed in a liquid crystal display (LCD). This invention also relates to the manufacturing method of this composite optical film. Background technique [0002] In order to allow the LCD screen to emit high-brightness light evenly, a variety of different types of optical films have been developed in this field; the functions and structures of the diffusion film and the light-concentrating film are combined into one, and the compounding of the substrate amount is saved. Optical film [composite optical film, or "multi-functional film" (multi-functional film)] is a relatively new research and development trend. Similarly, high luminance and high diffusivity are also the functional requirements for composite optical films in this field. [0003] Composite optical films can be roughly divided into two different categories according to their structural ...
Claims
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IPC IPC(8): G02F1/13357
Inventor 林宗奇郑永彬
Owner GLORY SUN OPTO ELECTRONICS CORP
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