Glass light guide plate for display and manufacturing method thereof
A glass light guide plate and glass plate technology, applied in optics, optical components, nonlinear optics, etc., can solve the requirements of reducing the iron content of the glass light guide plate for display, reduce production costs, and the color shift of the glass light guide plate. , to achieve the effect of solving the problem of color shift and reducing production costs
Pending Publication Date: 2021-01-15
HENAN ANCAI HI-TECH
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Problems solved by technology
[0006] The purpose of the present invention is to provide a glass light guide plate for display and its manufacturing method, which can solve the color shift problem of the glass light guide plate, effectively reduce the requirement of the glass light guide plate for display on the iron content of the glass, and reduce production costs
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Embodiment 2
[0034] Glass plate 1 is made of glass with an iron content of 500ppm (mass fraction) and a thickness of 3mm, and the light guide point is the down conversion material Tb 3 al 5 o 12 : Ce 3+ According to the distance from the light incident surface, different proportions of light guide point inks are prepared according to the distance from the light guide material, and the light guide point 2 is designed and distributed through professional optical software. Containing different proportions of down-conversion luminescent material Tb 3 al 5 o 12 : Ce 3+ The ink and the ink containing the light-guiding material are mixed and packed in different ink cartridges, and a layer of light-guiding dots is printed on the glass surface by inkjet printing, and then the ink dots are cured. Through this method, the color shift ΔE of the light guide plate is 0.23, which can be controlled within the allowable range.
[0035] A glass light guide plate for display, including a glass plate a...
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Abstract
The invention discloses a glass light guide plate for display and a manufacturing method thereof, and the glass light guide plate comprises a glass plate and a plurality of light guide points printedon the glass plate and arranged and designed through optical software, and is characterized in that the light guide points are of a one-layer structure, i.e., a mixture light guide layer formed by a down-conversion luminescent material and a light guide material for changing a light reflection angle, and the down-conversion material is used for converting blue-green light in white light into red light. By adding the down-conversion luminescent material into the light guide point material, when light reaches the light guide point, red light can be excited, absorption attenuation of the red light in the glass propagation process is compensated, attenuation of the red light is compensated, and therefore the color cast problem of the glass light guide plate is solved. Through the invention, the requirement of the glass light guide plate for display on the iron content of the glass can be effectively reduced, the problem that only the glass with the iron content of less than 20ppm can be used as the light guide plate in actual production is solved, and the production cost of the glass light guide plate for display is greatly reduced.
Description
technical field [0001] The invention relates to the technical field of light guide plate production, in particular to a glass light guide plate for display and a manufacturing method thereof. Background technique [0002] At present, in liquid crystal displays, a backlight source is required to provide a light source for the liquid crystal display. The light guide plate for display is mainly used to convert the point light source or line light source emitted by the light source into a surface light source, and the light is drawn out from one surface of the light guide plate to make the liquid crystal The monitor displays the screen. [0003] Traditional display light guide plates are made of polymethyl methacrylate (PMMA), polycarbonate (PC), etc., but due to their poor heat resistance and high expansion coefficient, liquid crystal displays are severely restricted in special occasions such as outdoors and high temperatures. Therefore, a light guide plate made of glass plate...
Claims
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Login to View More IPC IPC(8): G02B1/00G02F1/13357
CPCG02B1/00G02F1/133606G02F1/133609
Inventor 苍利民郭松昌万志刚杨柯胡海明陈明波魏永强孙向阳李有弟赵振远
Owner HENAN ANCAI HI-TECH