CN201037890Y

CN201037890Y - Modified pyramid-shape high brilliance structure

Info

Publication number: CN201037890Y
Application number: CNU2007201540178U
Authority: CN
Inventors: 蔡荣智; 林时正
Original assignee: Taiwan Nano Electro Optical Technology Co Ltd
Current assignee: Fuxiang Industrial Co., Ltd.
Priority date: 2007-05-22
Filing date: 2007-05-22
Publication date: 2008-03-19
Anticipated expiration: 2017-05-22

Abstract

The utility model provides an improvement of pyramid-shaped high brightness structure. The lower end surface of a light guide plate is provided with more than two pyramid-shaped cones, refraction light source entering the light guide plate conducts upward refraction through the end surface of the pyramid-shaped cone and light source can be shoot out from the surface of the light guide plate uniformly, furthermore, light enhancement and light guide function of a light enhancing membrane can be eliminated and a diffusing sheet and brightness of a monitor can be improved.

Description

The high briliancy structural improvement of pyramid

Technical field

The utility model provides a kind of pyramid high briliancy structural improvement, refers to a kind of adding lustre to and the leaded light effect of bright enhancement film and diffusion sheet that do not need especially, can reach the structure that improves display brightness.

Background technology

General backlight module (seeing also shown in Figure 1), it is mainly by a light source cover 10, one light source 11, one reflecting plate 12, one light guide plate 13, one first diffuser plate 14, first light collecting plate 15, one second light collecting plate 16, one second diffuser plate 17 constitutes, provide LCD required light source by backlight module, so, often too much because of the sheet material of this backlight module, it is time-consuming to cause group to establish, weight increases, cost increases, problems such as power loss and the big accommodation space of need take place, and, reflecting plate 12 in this backlight module, light guide plate 13, first diffuser plate 14, first light collecting plate 15, second light collecting plate 16, when second diffuser plate, 17 arbitrary sheet materials are bad, all can influence the light source that exports LCD to, the light source briliancy deficiency that causes LCD to be exported, the unequal problem of image fog and color takes place;

Therefore, this case creator is urgently to think to be improved innovation in view of the above-mentioned every shortcoming of being derived of commonly using, and after concentrating on studies through taking great pains to attain one's goal for many years, and then research and develop the high briliancy structural improvement of this a kind of pyramid.

The utility model content

The structure improved purpose of the high briliancy of the utility model pyramid is to provide a kind of pyramid high briliancy structural improvement, refers to a kind of adding lustre to and the leaded light effect of bright enhancement film and diffusion sheet that do not need especially, can reach the structure that improves display brightness.

The structure improved technical scheme of the high briliancy of the utility model pyramid is: one light guide plate lower surface convexes with the pyramid cone more than two, see through the end face of the cone of this pyramid, the refract light source of its incident light guide plate is upwards torn open to be penetrated, and light source can be penetrated from the light guide plate surface equably, and then exempt adding lustre to and the leaded light effect of bright enhancement film and diffusion sheet, can reach the brightness that improves display, and have the effect that reduces the sheet material cost concurrently.

The structure improved beneficial effect of the high briliancy of the utility model pyramid is:: 1, the group establish convenient; 2, save cost; 3, save electric power; 4, volume is frivolous; 5, do not need large space to get final product capacity.

Description of drawings

Fig. 1 is the synoptic diagram of general backlight module;

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

Fig. 3 is a cone perspective diagram of the present utility model;

Fig. 4 is another schematic side view of the present utility model;

Fig. 5 is a schematic side view more of the present utility model;

Fig. 6 is an another schematic side view of the present utility model.

[figure number explanation]

10.. light source cover 11.. light source

12.. reflecting plate 13.. light guide plate

14.. the first diffuser plate 15.., first light collecting plate

16.. the second light collecting plate 17.., second diffuser plate

21.. light guide plate 211. lower surfaces

212. cone 213. first end faces

214. second end face 215. the 3rd end face

216. the 4th end face 217. five terminal faces

22.. reflecting plate 23.. light supply apparatus

24.. light source cover 25.. prismatic lens

251.. micro-prism structure 26.. screening glass

27.. diffusion sheet

Embodiment

See also shown in Figure 2ly, the utility model provides a kind of pyramid high briliancy structural improvement, comprises:

One light guide plate 21, it is provided with the cone 212 of the pyramid of two above opposing parallel arrangements in these light guide plate 21 lower surfaces 211, wherein, this cone 212 can be the quadrangular pyramid body, it has first end face 213, second end face 214, the 3rd end face 215, the 4th end face 216 and five terminal face 217 (seeing also shown in Figure 3), and each end face is unsymmetric form (can also be symmetric form), and can utilize the end face of this cone 212, make the upwards refraction of refract light source of its incident light guide plate 21, and light source can be penetrated from light guide plate 21 surfaces equably.

One reflecting plate 22, it is arranged in this light guide plate 21 belows, and the source reflection that this light guide plate 22l bottom surface is exposed returns in this light guide plate 21, and to increase the utilization rate of incident light source;

One light supply apparatus 23, it is located at light guide plate 21 1 sides, and this light supply apparatus 23 is in order to send the required light source of LCD;

One light source cover 24, it is located at this light supply apparatus 23 1 sides, and this light source cover 24 partly surrounds this light supply apparatus 23, and goes in this light guide plate 21 with the light refraction that this light supply apparatus 23 is sent;

Please cooperate consult shown in Figure 2, when the light source of light supply apparatus 23 enters light guide plate 21 (figure does not show), end face by this cone 212, make the upwards refraction of refract light source of its incident light guide plate 21, and light source can be penetrated from light guide plate 21 surfaces equably, and then exempt adding lustre to and the leaded light effect of bright enhancement film and diffusion sheet, can reach the effect that improves display brightness, and assisting through this reflecting plate 22, and the source reflection that exposes from these light guide plate 21 bottom surfaces can be returned in the light guide plate 21, and to increase the utilization rate of incident light source, and can exempt from via the utility model and to buy and group is established more than one diffusion sheet and prismatic lens, and then can reach and reduce cost, save electric energy, weight reductions etc. meet dealer and consumer demand.

Moreover, can further be provided with a prismatic lens 25 on this light guide plate 21, as shown in Figure 4, wherein, these prismatic lens 25 tops be provided with one or more than be the micro-prism structure 251 of homeotropic alignment, also can in prismatic lens 25 belows be provided with one or more than be horizontal micro-prism structure 251, as shown in Figure 5, by the refractive power and the optically focused correcting effect of one or more micro-prism structure 251, and strengthen amplification, make it reach the purpose of high briliancy with the directivity of increase outgoing light source and with this light source; Certainly, can further be provided with a screening glass 26 on this prismatic lens 25.

In addition, these light guide plate 21 tops also can further be provided with a diffusion sheet 27, as shown in Figure 6, and will give all light from the light source of light guide plate 21 outgoing, and make the briliancy from the light source of this diffusion sheet 27 outgoing be equal brightness.

For making the utility model show its progressive and practicality more, now with commonly use that to do a comparative analysis as follows:

Commonly use disappearance: 1, group is established time-consuming; 2, expend cost; 3, consume electric power; 4, weight increases; 5, need the larger capacity space.

The utility model advantage: 1, the group establish convenient; 2, save cost; 3, save electric power; 4, Volume is frivolous; 5, do not need large space to get final product capacity.

In sum, the utility model has really reached the effect that wish is promoted, and practicality especially need not Doubt, should get permission patent, request your auditor and can know clearly and give careful examine, develop simultaneously and day grant a quasi patent and be Pray.

Claims

1. high briliancy structural improvement of pyramid comprises:

One light guide plate;

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

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

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

It is characterized in that: this light guide plate lower surface convexes with the cone that two above opposing parallel are arranged, and this cone is provided with plural end face.

2. the high briliancy structural improvement of pyramid according to claim 1 is characterized in that this cone is a pyramid, and it is provided with first end face, second end face, the 3rd end face, the 4th end face.

3. the high briliancy structural improvement of pyramid according to claim 1 is characterized in that this cone is four jiaos of centrums, and it is provided with first end face, second end face, the 3rd end face, the 4th end face and five terminal face.

4. the high briliancy structural improvement of pyramid according to claim 1 is characterized in that, this light guide plate top further is provided with a prismatic lens.

5. as the high briliancy structural improvement of pyramid as described in the claim 4, it is characterized in that, this prismatic lens top be provided with one or more than be the micro-prism structure of homeotropic alignment.

6. as the high briliancy structural improvement of pyramid as described in the claim 4, it is characterized in that, this prismatic lens below be provided with one or more than be horizontal micro-prism structure.

7. as the high briliancy structural improvement of pyramid as described in the claim 4, it is characterized in that this prismatic lens top is provided with screening glass.

8. the high briliancy structural improvement of pyramid according to claim 1 is characterized in that, this light guide plate top further is provided with a diffusion sheet.