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Light guide plate with regional light outlet and manufacturing method thereof

A manufacturing method and technology for a light guide plate, applied in the directions of light guide, optics, optical components, etc., can solve the problems of high manufacturing requirements, low display efficiency, and complicated operation.

Active Publication Date: 2016-04-13
SHANGHAI XIANGLONG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of low display performance due to light leakage in the existing light guide plate, high manufacturing requirements and complicated operation in the existing light guide plate, and provide a light guide plate with regional light emission and its manufacturing method

Method used

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  • Light guide plate with regional light outlet and manufacturing method thereof
  • Light guide plate with regional light outlet and manufacturing method thereof
  • Light guide plate with regional light outlet and manufacturing method thereof

Examples

Experimental program
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Embodiment 1

[0132] In view of the fact that the above comparative examples still cannot effectively solve the light leakage phenomenon, the inventors continue to conceive and propose a light guide plate 3 that emits light in areas as described below, which can more effectively control the divergent direction of light through blocking to achieve the shading effect. see Figure 3A , Figure 3B and Figure 4 , which are respectively the three-dimensional structure diagram, the plane structure diagram and the internal structure diagram of the light guide plate according to Embodiment 1 of the present invention. The light guide plate 3 for regional light emission is made by double-material injection molding, and has a light-shielding body 30 and several light-transmitting parts 31. It can be applied to various types of display devices, such as control panels of home appliances, and the light-transmitting member 31 is set corresponding to the position of each pattern on the display panel. Th...

Embodiment 2

[0136] see Figure 7 and Figure 8 , which is a schematic plan view and a schematic view of the internal structure of Embodiment 2 of the present invention. In this embodiment, the specific structure of the light guide plate 5 is further described. The present invention discloses a light guide plate 5 with light-shielding effect, including a light-shielding member 50 and a light-transmitting member 51 .

[0137] The shade 50 has a first stopper 501 and a second stopper 502, the second stopper 502 extends from one side of the first stopper 501, and the second stopper 502 is interposed with the first stopper 501 to form a The light-shielding concave portion 503 . Preferably, the second stopper 502 and the first stopper 501 can be arranged perpendicular to each other, but the present invention is not limited thereto, and the angle between the first stopper 501 and the second stopper 502 can also be adjusted according to requirements.

[0138] The light-transmitting member 51 i...

Embodiment 3

[0142] The present invention also discloses a method for manufacturing a light guide plate that emits light in an area, including the following steps: providing a first male mold core and a female mold core, the female mold core has at least one blind hole block, and then injects a The first material is between the first male mold core and the female mold core, and then, the first male mold core is removed, and a second male mold core is provided; next, a second material is injected between the second male mold core and the female mold core Between the mold cores; finally, exit the blind hole block and perform a demoulding action to obtain a light guide plate, wherein the blind hole block forms a blind hole corresponding to accommodate a light source. In this way, by replacing the two types of male mold cores and combining the setting of blind hole blocks, the light guide plate that emits light from the aforementioned area can be mass-produced and the problem of light leakage c...

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Abstract

The invention provides a light guide plate with regional light outlet and a manufacturing method thereof. The light guide plate comprises a shading element and a transmittance element, the transmittance element is connected with the shading element in the manner of integral forming, a blind hole for embedding a light source is formed between the shading element and the transmittance element so that the light of the light source can be blocked by the shading element, and only the lateral light is employed so that light outlet is formed at the transmittance element. Therefore, the shading element can block the light which is not incident to the transmittance element, the light is prevented from forming light outlet in a non-transmittance-element area of the light guide plate, and the phenomenon of light leakage is prevented. When the light guide plate is employed to be matched with a display panel, merely the area with specific patterns can be displayed, and adjacent patterns which are not in the display state are not simultaneously lightened.

Description

technical field [0001] The invention relates to the field of optical components, in particular to a light guide plate for emitting light in an area and a manufacturing method thereof. Background technique [0002] The backlight module is one of the key components installed in various electronic devices such as displays, light-emitting sheets or home appliance display panels, so that the panel patterns or characters that do not have luminous performance can be displayed by the light provided by the light-emitting module. A common backlight module includes at least one light source and a light guide plate. The backlight module can be divided into direct-type and side-type according to the location of the visible light source: the light source of the direct-type backlight module is set on the bottom side of the light guide plate, so that the light directly enters the light guide plate and forms light; the side-type backlight module The light source of the backlight module is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00
CPCG02B6/0021G02B6/0033G02B6/0065
Inventor 吴升峰
Owner SHANGHAI XIANGLONG ELECTRONICS TECH
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