Manufacturing method of light guide plate
A manufacturing method and technology of a light guide plate, applied in the direction of light guides, optics, optical components, etc., can solve problems such as inability to meet large-scale applications, low light extraction efficiency, and difficulty in thinning the light guide plate
Active Publication Date: 2014-08-06
CORETRONIC
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Problems solved by technology
However, limited by the manufacturing process of the light guide plate injection machine, it is generally difficult to thin the light guide plate with a large size (such as 7 inches or more)
On the other hand, although the technology of making flat light guide plates by extrusion molding can control the minimum thickness of flat light guide plates at 0.3 mm to 0.6 mm, in order to match the thickness of flat light guide plates, light-emitting diodes with smaller volumes are usually selected to make them As a light source, to form a light source device with a flat light guide plate, because the technology of making a flat light guide plate by extrusion molding cannot make the light incident surface of the light guide plate on the side of the light source larger
As a result, such a light source device will have the disadvantages of low light extraction efficiency, low lifespan, and inability to meet large-scale applications.
Method used
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[0054] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referring to the directions of the drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.
[0055] Figure 1A to Figure 1H It is a schematic diagram of a manufacturing method of a light guide plate according to an embodiment of the present invention. Please refer to Figure 1A , the manufacturing method of the light guide plate includes heating the mold 100 , and the mold 100 has an accommodating space 130 . In detail, the mold 100 includes a first part mold core 110 and a second part mold core 120, and the accommodating space 130 is formed by clamping the first part mold core 110 and the secon...
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A Manufacturing method of a light guide plate comprises the following steps, a light transmitting substrate is provided, the light transmitting substrate is provided with a first surface, a second surface which is faced to the first surface, and a first side surface for connecting the first surface and the second surface; a first end of the first side surface of the light transmitting substrate is subjected to hot pressing to generate deformation, thus a first wedge-shaped part is formed on the first end to form a light guide plate, and the thickness of the first wedge-shaped part decreases with the direction far away the first end.
Description
technical field [0001] The invention relates to a manufacturing method of an optical element, and in particular to a manufacturing method of a light guide plate. Background technique [0002] Since a liquid crystal display (LCD) itself does not have the function of emitting light, a backlight system must be provided under the liquid crystal display to provide a light source to realize the display function. The known backlight system is composed of two basic parts: a light source and a light guideplate (light guideplate), wherein the light source is further divided into a cold cathode fluorescence lamp (cold cathode fluorescence lamp, CCFL) of a line light source and a plurality of light-emitting diodes of a point light source (light emitting diode, LED). The light beam emitted by the light source enters the light guide plate from the light incident surface of the light guide plate, is guided by the light guide plate, and evenly exits from the light exit surface of the light...
Claims
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IPC IPC(8): G02B6/00
Inventor 萧增科
Owner CORETRONIC