Brightness enhancing film, preparing method of brightness enhancing film, and displaying device comprising brightness enhancing film
A manufacturing method and technology of a display device, which are applied in the field of light concentrating and can solve problems such as misalignment and damage to prism arrays
Inactive Publication Date: 2014-08-06
XIAMEN TIANMA MICRO ELECTRONICS +1
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Problems solved by technology
[0005] In order to solve the above-mentioned technical problems, the embodiments of the present invention provide a brightness enhancement film and its manufacturing method, and a display device including the brightness enhancement film, so as to solve the problem of orthogonal placement of two brightness enhancement films in the prior art. Misalignment and damage to the prism array caused by
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[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.
[0038] As mentioned in the background technology section, in the prior art, in order to obtain converging effects of light in both horizontal and vertical directions simultaneously, it is necessary to use two pieces of ordinary brightness enhancement films to be placed orthogonally. However, when the two brightness enhancement films are placed orthogonally, not only are they prone to misalignment, but also the prism array on the surface of the brightness enhancement film will be damaged due to mutual friction.
[0039] It should be no...
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The invention discloses a brightness enhancing film, a preparing method of the brightness enhancing film, and a displaying device comprising the brightness enhancing film. The brightness enhancing film comprises a first film layer, a second film layer and a third film layer, wherein the surface of the first film layer is provided with multiple first prisms in the first direction and a first groove is formed between every two adjacent first prisms; the second film layer is arranged on the surface of the first film layer; one side surface, facing toward the first film layer, of the second film layer is provided with multiple second prisms in the first direction, a second groove is formed between every two adjacent second prisms, and the second prisms are used for stuffing the first grooves; the first prisms are used for stuffing the second grooves; the third film layer is arranged on the surface of the second film layer; one side, deviating from the second film layer, of the third film layer is provided with multiple third prisms in the second direction; a first angle is formed between the first direction and the second direction; the refractive indexes of the first film layer and the third film layer are higher than that of the second film layer. The problems that two common brightness enhancing films need to be arranged perpendicularly in order to achieve the convergence of light rays in two directions, while deviation and prism array damages easily occur in the arrangement of the two films in the prior art are solved.
Description
technical field [0001] The invention relates to the field of light-gathering technology, in particular to a brightness enhancement film, a manufacturing method thereof, and a display device comprising the brightness enhancement film. Background technique [0002] The principle of the brightness enhancement film is to adjust the light emitted outside the observer's angle of view to within the observer's angle of view through reflection, thereby improving the utilization rate of light energy emitted by the light source. It is currently widely used in light-emitting modules for converging The light emitted by a light source. Especially in display devices such as monitors, brightness enhancement films are commonly used to increase display brightness and save energy for display battery devices. [0003] Ordinary Brightness Enhancement Film (BEF) is composed of multiple prisms for converging light, and these prisms are arranged in one direction to form a prism array. Since the p...
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IPC IPC(8): G02B5/04
Inventor 倪德鹏柯思超
Owner XIAMEN TIANMA MICRO ELECTRONICS