CN201037889Y - Improved high brightness structure of curved V-shaped groove - Google Patents

Abstract

The utility model provides an improved curved V-groove high brightness structure, wherein the lower end surface of the light guide plate is convexly provided with two or more curved light guide parts, and the curved end surfaces of the light guide parts make the refracted light source incident on the light guide plate densely and evenly scattered upward, and make the light source form a uniform surface light source emitted from the surface of the light guide plate, and then through the refraction and focusing of a prism sheet to guide the light, so as to maintain the brightness of the display stable and greatly improve the light-dark contrast efficiency.

Description

Curved V-groove High Brightness Structure Improvement

technical field

The utility model provides an improvement of the high-brightness structure of the line V-shaped groove, especially a structure that can keep the brightness of the display stable and greatly improve the contrast efficiency of light and shade.

Background technique

A general backlight module (see also shown in Figure 1), it mainly consists of a light source cover 10, a light source 11, a reflector 12, a light guide plate 13, a first diffusion plate 14, a first light collecting plate 15, a first Two light-collecting plates 16 and a second diffuser plate 17 are used to provide the light source required by the liquid crystal display through the backlight module. However, often because the backlight module has too many sheets, it takes time to assemble, increases the weight, and increases the cost. Problems such as power consumption and the need for a large accommodation space occur, and when the reflector 12, the light guide plate 13, the first diffuser 14, the first light collector 15, the second light collector 16, and the second diffuser in the backlight module When any sheet of the board 17 is defective, it will affect the light source output to the liquid crystal display, resulting in problems such as insufficient luminance of the light source output by the liquid crystal display, blurred images, and uneven colors;

Furthermore, when using a display with a general backlight module, its display brightness will often alternately display in bright and dark during use, which will cause eye fatigue and discomfort to the user, and it will easily lead to eye diseases after long-term use;

Therefore, in view of the shortcomings derived from the above-mentioned conventional usage, the creators of this case desperately wanted to improve and innovate, and after years of painstaking research, they developed this improved curved V-groove high-brightness structure.

Utility model content

The purpose of the utility model for improving the high-brightness structure of the curved V-shaped groove is to provide an improved high-brightness structure for the curved V-shaped groove, especially a structure that can keep the brightness of the display stable and greatly improve the efficiency of light-dark contrast.

The technical solution for the improvement of the high-brightness structure of the curved V-groove of the utility model is as follows: the lower end surface of the light guide plate is protruded with more than two curved light guide parts, and the curved end surface of the light guide part, The refracted light source incident on the light guide plate is densely and evenly scattered upwards, and the light source forms a uniformly bright surface light source that emits from the surface of the light guide plate, and then passes through a prism sheet to refract and condense the light to guide it, so that the brightness of the display can be kept stable. And greatly enhance the contrast between light and dark, which can make the display effect of the display more harmonious and natural.

The beneficial effects of the improvement of the high-brightness structure of the curved V-shaped groove of the utility model are as follows: 1. Keep the brightness stable; 2. Improve the alternating display of light and dark; 3. Convenient assembly; 4. Save cost; Thin and light; 7. The capacity can be achieved without a large space.

Description of drawings

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

Fig. 2 is a schematic side view of the utility model;

3 is a three-dimensional schematic diagram of a light guide plate of the present invention;

Fig. 4 is a schematic side view of light source refraction according to the present invention.

【Description of figure number】

10.. Light source cover 11.. Light source

12.. Reflector 13.. Light guide plate

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

16.. The second light collecting plate 17.. The second diffuser plate

21.. Light guide plate 211. Lower end surface

212. Light guide part 213 upper end face

22. Prism sheet 221. Micro prism sheet

23.. Reflector 24.. Light source device

25..Light source cover 3...Refracted light source

Detailed ways

Please refer to Figure 2, the utility model provides an improvement of a curved V-groove high-brightness structure, including:

A light guide plate 21, the lower end surface 211 of the light guide plate 21 is protruded with two or more curved light guide portions 212, and the upper end surface 213 of the light guide plate 21 is protruded with a plurality of light guide portions 212 arranged in a vertical direction , wherein, the light guide part 212 corresponds to more than one light source device 24, and the light guide part 212 has a curved end face (see FIG. 3 ), so that the refracted light source 3 incident on the light guide plate 21 Scatter densely and evenly upwards, and make the light source form a uniformly bright surface light source to emit from the surface of the light guide plate 21 (please refer to FIG. 4);

A prism sheet 22, which is arranged on the top of the light guide plate 21, wherein one or more microprism sheets 221 are provided on one side of the prism sheet 22, and the refraction and light concentration of one or more microprism sheets 221 guide Positive effect, so as to increase the directionality of the outgoing light source and enhance the amplification of the light source (see Figure 4), so as to achieve the purpose of high brightness;

A reflection plate 23, 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 device 24, which is arranged on one side of the light guide plate 21, the light source device 24 can be one or more illuminants (such as: light emitting diodes, light bulbs), and emit the required light source for liquid crystal display through the illuminants;

A light source cover 25, which is arranged on one side of the light source device 24, the light source cover 25 partially surrounds the light source device 24, and refracts the light emitted by the light source device 24 into the light guide plate 21 (see FIG. 4 shown);

Please refer to FIG. 4 , when the light source of the source device 24 enters the light guide plate 21, the refracted light source 3 incident on the light guide plate 21 is made possible by the curved end face of the light guide portion 212 (see FIG. 3 ). Scatter evenly upwards, and make the light source form a uniformly bright surface light source to emit from the surface of the light guide plate 21, and then pass through a prism sheet 22 to refract and condense the light to guide it, so that the brightness of the display can be kept stable, and the contrast between light and dark can be greatly improved. Make the display effect of the display more rounded and natural;

And through the assistance of the reflector 23, the light source exposed from the bottom surface of the light guide plate 21 can be reflected back to the light guide plate 21 (not shown), so as to increase the utilization rate of the incident light source, and the utility model only utilizes a single light guide The optical board 21, the prism sheet 22, the reflective board 23 and other sheets are matched and assembled, so that the brightness of the display with the utility model can be kept stable, thereby improving the alternating light and dark conditions of the display caused by matching with a general backlight module. Furthermore, The utility model can reduce the cost, save the electric energy, reduce the weight and meet the requirements of the industry and consumers.

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

Common deficiencies: 1. Alternate bright and dark display that hurts the eyes; 2. Unable to make the display effect of the display smooth and natural; 3. Time-consuming assembly; 4. Cost-consuming; 5. Power consumption; 6. Weight increase; Large capacity space.

The advantages of the utility model: 1. Keep the brightness stable; 2. Improve the alternating display of light and dark; 3. Convenient assembly; 4. Save cost; 5. Save electricity;

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 (4)

1. A curved V-groove high-brightness structure improvement, including: a light guide plate; a prism sheet arranged above the light guide plate; a reflection plate, which is arranged under the light guide plate; A light source device, which is arranged on one side of the light guide plate; A light source cover, which is arranged on one side of the light source device; It is characterized in that: the lower end surface of the light guide plate is convexly provided with more than two curved light guide parts, and the light guide parts have curved end surfaces. 2. The improved high-brightness structure of the curved V-groove according to claim 1, wherein the light guide part corresponds to more than one light source device. 3. The improved high-brightness structure of the curved V-groove according to claim 1, wherein a plurality of vertically arranged light guide portions are provided on the lower surface of the light guide plate. 4 . The improved high-brightness structure of the curved V-groove according to claim 1 , wherein the light guiding portion is a groove.

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