CN201037889Y

CN201037889Y - Modified high brilliance curved line V-shape groove structure

Info

Publication number: CN201037889Y
Application number: CNU200720153612XU
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: 2007-05-21
Filing date: 2007-05-21
Publication date: 2008-03-19
Anticipated expiration: 2017-05-21

Abstract

The utility model provides an improvement of curved V-shaped groove high brightness structure. The lower end surface of a light guide plate is provided with more than two curved light guide parts, refraction light source entering the light guide plate scatters upward in a concentrated and uniform way with the curved end surface of the light guide part, and light source forms surface light source with uniform brightness and then is shoot out through the surface of the light guide plate; moreover, with refraction and photospot positive guide of a prism sheet, brightness stability of a monitor can be maintained and shading contrast efficiency can be greatly improved.

Description

The high briliancy structural improvement of curve V-type groove

Technical field

It is a kind of by the high briliancy structural improvement of line V-type groove that the utility model provides, and refers to that especially a kind of display brightness that keeps is stable, and promote the structure of light and shade to specific efficiency greatly.

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, one 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, image fog, the unequal problem of color;

Moreover, adopt the display of general backlight module, when using, its display brightness often all can take place constantly with the situation of bright dark Alternation Display, and cause user's eye fatigue and discomfort, cause eyes to produce pathology after long-term the use easily;

Therefore, this case creator is in view of the above-mentioned every shortcoming of being derived of commonly using, and urgently thinks to be improved innovation, 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 curve V-type groove.

The utility model content

The structure improved purpose of the high briliancy of the utility model curve V-type groove is to provide a kind of curve V-type groove high briliancy structural improvement, refers to that especially a kind of display brightness that keeps is stable, and promotes the structure of light and shade to specific efficiency greatly.

The structure improved technical scheme of the high briliancy of the utility model curve V-type groove is: its this light guide plate lower surface convexes with the light guide section of curved shape more than two, by the curvilinear end face of this light guide section institute tool, and the intensive upwards scattering equably of the refract light source that makes the incident light guide plate, and the area source that makes light source form an equal brightness penetrates from the light guide plate surface, see through the refractive power and the optically focused correcting of a prismatic lens again, and can keep display brightness stable, reach and promote its light and shade contrast greatly, and then can make the display effect of display, more round effect of melting nature.

The structure improved beneficial effect of the high briliancy of the utility model curve V-type groove is: 1, keep brightness stability; 2, improve bright dark Alternation Display; 3, the group establish convenient; 4, save cost; 5, save electric power; 6, volume is frivolous; 7, 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 light guide plate schematic perspective view of the present utility model;

Fig. 4 is a light source refraction 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. light guide section 213 upper surfaces

22.. prismatic lens 221. microprism sheets

23.. reflecting plate 24.. light supply apparatus

25.. light source cover 3... refract light source

Embodiment

See also shown in Figure 2ly, the utility model provides a kind of curve V-type groove high briliancy structural improvement, comprises:

One light guide plate 21, its these light guide plate 21 lower surfaces 211 convex with the light guide section 212 of curved shape more than two, and light guide plate 21 upper surfaces 213 convex with the light guide section of arranging in vertical direction more than several 212, wherein, this light guide section 212 is corresponding mutually with more than one light supply apparatus 24, and by the curvilinear end faces of these light guide section 212 tools (seeing also shown in Figure 3), and the intensive upwards scatterings equably of the refract light source 3 that makes incident light guide plate 21, and make light source form the area source of an equal brightness from light guide plate 21 surface ejaculations (seeing also shown in Figure 4);

One prismatic lens 22, it is arranged in light guide plate 21 tops, wherein, these prismatic lens 22 1 sides are provided with one or more microprism sheet 221, refractive power and optically focused correcting effect by one or more microprism sheet 221, and strengthen amplification (seeing also shown in Figure 4) with the directivity of increase outgoing light source and with this light source, make it reach the purpose of high briliancy;

One reflecting plate 23, it is arranged in this light guide plate 21 belows, and the source reflection that these light guide plate 21 bottom surfaces are exposed returns in this light guide plate 21, and to increase the utilization rate of incident light source;

One light supply apparatus 24, it is located at light guide plate 21 1 sides, and this light supply apparatus 24 can be one or more luminophor (as: light emitting diode, bulb), and sends the required light source of liquid crystal display by this luminophor;

One light source cover 25, it is located at this light supply apparatus 24 1 sides, and this light source cover 25 partly surrounds this light supply apparatus 24, (sees also shown in Figure 4) and go into the light refraction that this light supply apparatus 24 is sent in this light guide plate 21;

See also shown in Figure 4, when the light source of source apparatus 24 enters light guide plate 21, by 212 curvilinear end faces of tool of this light guide section (seeing also Fig. 3 institute), and the refract light source 3 that makes incident light guide plate 21 upwards scattering equably, and the area source of light source formation one equal brightness is penetrated from light guide plate 21 surfaces, see through the refractive power and the optically focused correcting of a prismatic lens 22 again, and can keep display brightness stable, and promote its light and shade contrast greatly, make the more round nature that melts of display effect of its display;

And assisting through this reflecting plate 23, and the source reflection that exposes from these light guide plate 21 bottom surfaces can be returned light guide plate 21 (figure does not show), and to increase the utilization rate of incident light source, and the utility model only utilizes sheet material collocation groups such as single light guide plate 21, prismatic lens 22 and reflecting plate 23 to establish, can make its brightness of collocation display of the present utility model keep stable, and then the bright dark alternately situation of the improvement demonstration that general backlight module caused because of arranging in pairs or groups, moreover, can reach by the utility model and to reduce cost, to save electric energy, weight reduction etc. and meet dealer and consumer demand.

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: the bright dark Alternation Display that 1, produces the injury eyes; 2, can't make the display effect circle of display melt nature; 3, group is established time-consuming; 4, expend cost; 5, consume electric power; 6, weight increases; 7, need the larger capacity space.

The utility model advantage: 1, keep brightness stability; 2, improve bright dark Alternation Display; 3, It is convenient that group is established; 4, save cost; 5, save electric power; 6, volume is frivolous; 7, do not need big sky Between get final product capacity.

In sum, the utility model has really reached the effect that institute's wish is promoted, and practicality is not especially Mediocrely doubt, should get permission patent, request your auditor and can know clearly and give careful examining, develop simultaneously and day grant a quasi patent For praying.

Claims

1. high briliancy structural improvement of curve V-type groove comprises:

One light guide plate;

One prismatic lens, it is arranged in the light guide plate top;

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

One light supply apparatus, it is located at 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 light guide section of curved shape more than two, and this light guide section has curvilinear end face.

2. the high briliancy structural improvement of curve V-type groove as claimed in claim 1 is characterized in that this light guide section is corresponding mutually with more than one light supply apparatus.

3. the high briliancy structural improvement of curve V-type groove as claimed in claim 1 is characterized in that this light guide plate lower surface is provided with the light guide section of several homeotropic alignments.

4. the high briliancy structural improvement of curve V-type groove as claimed in claim 1 is characterized in that this light guide section is a groove.