CN201037886Y - High-quality backlight module structure - Google Patents

Abstract

The utility model provides a high-quality backlight module structure, which has one or more concave or convex parts on one end surface of a light guide plate, wherein the concave or convex part corresponds to a light source device, and the concave or convex part has one or more concave surfaces or convex surfaces, so that the incident light source can be evenly diffused in the light guide plate, and the light source emitted from the light guide plate is evenly enhanced and amplified through the light expansion and balancing part, so as to achieve the purpose of eliminating the uneven brightness of the light source.

Description

High quality backlight module structure

technical field

The utility model provides a high-quality backlight module structure, especially a structure that can uniformly diffuse and reflect an incident light source, and eliminate the uneven brightness and darkness of the light source after being reinforced by uniform light and amplified by the light source.

Background technique

A general point light source backlight module, please refer to Figures 1 and 2, it is mainly composed of a light source cover 10, a light emitting diode 11, a reflector 12, a light guide plate 13, a first diffusion plate 14, a first set The light plate 15, a second light collecting plate 16, and a second diffusing plate 17 are formed, and the light source required by the liquid crystal display is provided by the point light source backlight module. The light source cannot be uniformly incident on the light guide plate 13, resulting in the formation of bright areas 131 and dark areas due to the difference in the intensity of light received between the area of the light guide plate 13 corresponding to the light emitting diodes 11 and the area of the light guide plate 13 not directly corresponding to the light emitting diodes 11. 132, which in turn causes uneven distribution of the light source output from the light guide plate 13, and directly affects the light uniformity of the first diffuser plate 14, the first light collector plate 15, the second light collector plate 16, and the second diffuser plate 17. And the correctness of amplifying the light source, resulting in the problem of uneven brightness and darkness when the liquid crystal display is displayed;

Therefore, in view of the shortcomings of the above-mentioned common use, the author of this case is eager to improve and innovate, and after years of painstaking research, he has developed this high-quality backlight module structure.

Utility model content

The purpose of the utility model is to provide a structure that can uniformly diffuse and reflect the incident light source, and eliminate the uneven brightness and darkness of the light source after the effect of uniform light reinforcement and amplification of the light source.

The technical scheme of the high-quality backlight module structure of the utility model is as follows: comprising: a light guide plate; a light source device, which is arranged on one side of the light guide plate; , which is set under the light guide plate; a light source cover, which is set on one side of the light source device; the key point is that: one end surface of the light guide plate is provided with more than one concave or convex portion, and the concave or convex portion and More than one light source device corresponds to each other, and more than one concave surface or convex surface is provided on the concave portion or the convex portion.

The beneficial effects of the utility model are: the incident light source can be evenly diffused in the light guide plate by means of the concave surface or the convex surface, and the light source emitted from the light guide plate can be uniformly reinforced and amplified through the light-expanding part. Finally, the problem of uneven brightness and darkness of the light source can be eliminated, and the brightness display effect of the display can be more uniform and smooth.

Description of drawings

FIG. 1 is a schematic diagram of a general point light source backlight module;

FIG. 2 is a schematic diagram of a light source incident on a light guide plate of a general point light source backlight module;

Fig. 3 is a schematic side view of the utility model;

Fig. 4 is a schematic top view of the light guide plate and the light source device of the present invention;

Fig. 5 is a schematic diagram of the incident light guide plate of the light source of the present invention;

Fig. 6 is an embodiment of the utility model;

Fig. 7 is another embodiment of the utility model;

Fig. 8 is another schematic top view of the light guide plate and the light source device of the present invention;

Fig. 9 is yet another embodiment of the utility model;

Fig. 10 is another embodiment of the utility model.

【Description of figure number】

10..Light source cover 11..Light emitting diode

12.. Reflector 13.. Light guide plate

131. Bright area 132. Dark area

14.. The first diffuser plate 15.. The first light collecting plate

16..Second light collecting plate 17..Second diffuser plate

21. Light guide plate 211. End face

212. Concave 213. Concave

214. Convex 215. Convex

22..Light source device 23..Expansion and uniform light part

23 1. Diffusion sheet 232. Prism sheet

24.. Reflector 25.. Light source cover

Detailed ways

Please refer to Figures 3 and 4, the utility model provides a high-quality backlight module structure, including:

A light guide plate 21, which is provided with more than one recess 212 on an end surface 211 of the light guide plate 21, wherein the recess 212 corresponds to more than one light source device 22, and the interval between the recess 212 and the recess 212 is and the concave depth can be adjusted according to the matching light source device 22, and the concave portion 212 is provided with more than one concave surface 213, and the incident light source can be evenly diffused in the light guide plate 21 by the concave surface 213 (see Fig. 5), so as to eliminate the problem of bright and dark areas caused by conventional use; in addition, one end surface 211 of the light guide plate 21 may be provided with more than one convex portion 214, and the convex portion 214 is also provided with one The above convex surface 215, as shown in FIG. 8, can also achieve the same effect.

A light source device 22, which is arranged on one side of the light guide plate 21, the light source device 22 is one or more than one light-emitting diode, and the light source required by the liquid crystal display is emitted by the light-emitting diode;

A light-expanding and uniforming portion 23, which is arranged above the light guide plate 21, wherein, the light-expanding and uniforming portion 23 is composed of more than one diffusion sheet 231 and more than one prism sheet 232, by the diffusion sheet 231 and The prism sheet 232 uniformly strengthens and amplifies the light source emitted from the light guide plate 21, so that the light source emitted to the display is uniformly bright;

A reflector 24, which is arranged under the light guide plate 21, and reflects the light source exposed on the bottom surface of the light guide plate 21 back into the light guide plate 21, so as to increase the utilization rate of the incident light source;

A light source cover 25, which is arranged on one side of the light source device 22, the light source cover 25 partially surrounds the light source device 22, so as to refract the light emitted by the light source device 22 into the light guide plate 21;

Please refer to FIG. 4 and FIG. 5 , through the concave surface 213 of the concave portion 212, the incident light source is uniformly diffused in the light guide plate 21, and passes through more than one diffusion sheet 231 and prisms of the light-expanding and uniform light-expanding portion 23. The sheet 232 (see FIG. 3 ) can eliminate the problem of uneven brightness of the light source and make the brightness display effect of the display more uniform after the light source emitted from the light guide plate 21 is reinforced and enlarged. the purpose of harmony;

Please refer to Figures 6 and 7, the concave portion 212 of the light guide plate 21 of the present invention can be further semicircular or hat-shaped; of course, the convex portion 214 of the light guide plate 21 can also be further semicircular or The shape of the hat is shown in Figures 9 and 10.

In order to make the utility model show its advancement and practicality more, it is as follows with a comparative analysis of conventional use:

Practical shortcomings: 1. The light source is uneven in brightness and darkness. 2. It is easy to make eyes tired.

Advantages of the utility model: 1. The light source is bright and dark evenly. 2. Make the display effect more uniform and smooth. 3. The eyes are not easy to fatigue.

To sum up, this utility model has indeed achieved the desired effect, and its practicability is beyond doubt. It should be granted a patent. I pray that your examiner will carefully review it in detail, and pray for the grant of the patent.

Claims (7)

1. high-quality degree backlight modular structure comprises:

One light guide plate; One light supply apparatus, it is located at light guide plate one side;

One expands all light portions, and it is arranged in this light guide plate top;

One reflecting plate, it is arranged in this light guide plate below;

One light source cover, it is located at this light supply apparatus one side;

It is characterized in that:

One end face of this light guide plate is provided with more than one recess or protuberance, and this recess or protuberance are corresponding mutually with more than one light supply apparatus, and this recess or protuberance are provided with more than one concave surface or convex surface.

2. high-quality degree backlight modular structure as claimed in claim 1 is characterized in that, in the spacing cycle of this recess and recess or protuberance and protuberance, is complementary with the light supply apparatus of being arranged in pairs or groups.

3. high-quality degree backlight modular structure as claimed in claim 1 is characterized in that, the indent degree of depth of this recess, and perhaps the height of projection of protuberance is complementary with the light supply apparatus of being arranged in pairs or groups.

4. high-quality degree backlight modular structure as claimed in claim 1 is characterized in that, this recess or protuberance are semicircle.

5. high-quality degree backlight modular structure as claimed in claim 1 is characterized in that this recess or protuberance are hat.

6. high-quality degree backlight modular structure as claimed in claim 1 is characterized in that, this expands all that light portion is provided with more than one prismatic lens.

7. high-quality degree backlight modular structure as claimed in claim 1 is characterized in that, this expands all that light portion is provided with more than one diffusion sheet.

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