CN201021784Y

CN201021784Y - Adjusting device for dark area of in light of point light source

Info

Publication number: CN201021784Y
Application number: CNU2007200009675U
Authority: CN
Inventors: 陈树盛
Original assignee: Taiwan Nano Electro Optical Technology Co Ltd
Current assignee: Fuxiang Industrial Co., Ltd.
Priority date: 2007-01-22
Filing date: 2007-01-22
Publication date: 2008-02-13
Anticipated expiration: 2017-01-22

Abstract

The utility model relates to an adjuster of incident light bright-dark area of spot lamp, comprising that radiating a spot light into a light conductive plate, to uniformly adjust the brightness of incident light bright-dark area of the spot light, wherein the light conductive plate is provided with a plurality of bar-shape micro structures relative to the direction of the spot light, and the micro structures are arranged according to shape, angle, density, size, or position according to the center of incident area of the spot light, to obtain the uniform output of incident light.

Description

The adjusting device of going into bright dark space of spot light

Technical field

The utility model is meant a kind of adjusting device of going into bright dark space that exports the spot light on the display to especially relevant for a kind of light uniformization adjusting device of using in backlight output.

Background technology

Existing display interface device mostly is to use the backlight mode to manifest, such as mobile phone, screen such as PDA or digital camera all is, in general, the output of display all is to incide on the LGP with light emitting diode haply, be shown to panel by the light reflection then, yet, as shown in Figure 1, the light source of light emitting diode 11 can not be completely and is incided LGP 12 equably, but with center acting on the LGP 12 towards two side degradation luminosity, so when light emitting diode 11 irradiation LGPs 12, the clear zone 13 and the dark space 14 that have bright white exist, that is to say, the position of positive respective leds 11 can form clear zone 13, generate and just have dark space 14 towards the both sides extension, and so bright dark uneven state is to be reacted directly on the display pannel, and then cause local ghost to produce, therefore, relevant dealer is at this kind disappearance, do further improvement and have, the i.e. improvement of present LGP 2 on the market, it is technical be in LGP 12 with respect to light emitting diode 11 formed clear zones 13 and dark space 14 to get ready or sandblast mode density of distribution, the degree of depth or the fine structure that differs in size 15, and see through constantly test and practical experience, and obtain the LGP 12 of a preferable display effect, but this mode for different size be need be again test once, duplicate and be not easy and reach, so the volume production of being difficult for is arranged, disappearances such as special requirement involves great expense, and constantly attempt quite consuming time, for on the industry being a big fraud mistake, moreover, be difficult to obtain the optimum efficiency of light uniformization in this way, can in output, produce the tangible lines that has a common boundary unavoidably, therefore will reflect the situation that the product fraction defective is high relatively on making, be the disappearance greatly that present display manifests in fact.

The utility model content

Therefore, the purpose of this utility model is promptly providing a kind of adjusting device of going into bright dark space that spot light incident light homogenising can be adjusted the output to the spot light of display.

So, the adjusting device of going into bright dark space of spot light of the present utility model, spot light is incided a LGP, and through of the homogenising adjustment of this LGP with going into of spot light bright dark space implementation demonstration glazing briliancy, wherein, this LGP corresponds to the fine structure that spot light is provided with several strips, reaching one supplies these fine structures to face upward or downward the base surface of setting, every fine structure has a pair of high relatively point that should the LGP base surface respectively, one along spot light long axis that relative direction forms, reach an axial plane along long axis formation, this axial plane has the angle angle in the high relatively point of end points correspondence of base surface, the high relatively point that reaches corresponding to base surface has a relative altitude, then has a spacing between adjacent two fine structures, light incidence section with spot light is the center, can be if amplify the angle of fine structure gradually towards two sides with the brilliant degree of light incidence section towards two side homogenising by light incidence section, can be if dwindle the spacing of fine structure gradually towards two sides with the brilliant degree of light incidence section towards two side homogenising by light incidence section, can be if increase the height of fine structure gradually towards two sides with light incidence section radiance degree towards two side homogenising by light incidence section, characteristic can be made shape with these fine structures according to need according to this, angle, density, size or position are done best configuration and are distributed.

The beneficial effects of the utility model are: the adjusting device of going into bright dark space of spot light of the present utility model, can make the configuration mode (annex is consulted in cooperation) of fine structure by spectrum analysis, promptly can be used for making and produce, so be general or special requirement all need not spend long-time trial and can be used for volume production, therefore can avoid expending quite a lot of financial resources and money in test (tradition is got ready or sandblast), and then the big drawback of solution tradition on die sinking is manufactured, moreover, the utility model can will be gone into bright dark space and be adjusted the output to quite even, and the reliability of no matter producing, yield is all splendid, so have the value of height on the industry.

Description of drawings

Fig. 1 is the schematic diagram of going into of conventional point light source bright dark space regulative mode;

Fig. 2 is a user mode schematic diagram, and a preferred embodiment of the present utility model is described;

Fig. 3 is the enlarged diagram of LGP corresponding to the spot light light incidence section;

Fig. 4 is the enlarged diagram of LGP point of distance light source light incidence section;

Fig. 5 is another fine structure schematic diagram of this preferred embodiment;

Fig. 6 is the another fine structure schematic diagram of this preferred embodiment.

[figure number explanation]

2---spot light 3---LGP

31---base surface 4---fine structure

41---high relatively point 42---long axis

43---axial plane A---light incidence section

The specific embodiment

As shown in Figure 2, the adjusting device of going into bright dark space of spot light of the present utility model incides a LGP 3 with spot light 2, and through this LGP 3 the homogenising adjustment that shows the glazing briliancy is carried out in the bright dark space of going into of spot light 2.

This spot light 2 is mostly adopted light emitting diode (LED) in present practice utilization, it can do the configuration of varying number according to the size of display interface.

Shown in Fig. 2,3, this LGP 3 corresponds to the fine structure 4 that spot light 2 is provided with several strips, and these fine structures 4 are to make one mode at least wherein such as size, position or shape according to the position of spot light 2 to dispose.

Shown in Fig. 3,5,6, this LGP 3 has one and supplies these fine structures 4 to face upward or downward the base surface 31 of setting, these fine structures 4 can be arranged at end face, the bottom surface of LGP 3 or push up at two at the end, and it is provided with the raised line that can be convergent width up or the groove of convergent width down, and can be V-type, reverse V-shaped on the external form, also or approximate V-type, be the V-type of arcuation or reverse V-shaped etc. as protruding (recessed) column type, tip.

Shown in Fig. 2,3,4, each fine structure 4 has a pair of long axis 42 that forms along spot light 2 relative directions of high relatively point 41, that should LGP 3 base surfaces 31 respectively, reach an axial plane 43 along long axis 42 formation, this axial plane 43 has angle angle R in the high relatively point 41 of end points correspondence of base surface 31, the high relatively point 41 that reaches corresponding to base surface 31 has a relative altitude H, and 4 of adjacent two fine structures then have a spacing P.

If is the center with these fine structures 4 over against the light incidence section A that answers spot light 2, angle R when these fine structures, when height H is constant, can dispose over against the mode that the light incidence section of answering spot light 2 dwindles spacing P gradually towards two sides by these fine structures 4, so, part light just can see through the factor of anaclasis with the past two sides transmission of light, relatively, the brilliant degree of light incidence section A will be towards two side homogenising, so height H when these fine structures 4, when angle R is constant, can be considered the comparatively simple basic sample attitude of implementing, promptly above-mentioned mode disposes over against the light incidence section of answering spot light 2 towards two sides these fine structures 4 in the gradually little mode of spacing P.

In like manner,, then these fine structures 4 can be disposed in the gradually high mode of height H over against the light incidence section of answering spot light 2 towards two sides, so can make spot light 2 incide the output light uniformization of LGP 3 equally as the angle R of these fine structures 4, when spacing P is constant.Or, when the height H of these fine structures 4, when spacing P is constant, these fine structures 4 can be disposed in the gradually big mode of angle R over against the light incidence section of answering spot light 2 towards two sides, the effectiveness that also can see through anaclasis makes spot light 2 incide the output light uniformization of LGP 3.

By above-mentioned three kinds of basic modes as can be known, dwindle the spacing P of fine structure 4 gradually, increase height H gradually towards two sides by light incidence section A, or increasing mode such as angle R disposes, all can be with the brilliant degree of light incidence section A towards two side homogenising, characteristic can be made these fine structures 4 shape, angle, density, size or position according to need and does best configuration and distribute according to this.

And on practice, above-mentioned configuration mode is available computers emulation, and by the comparison (output spectrum figure contrasts in measurement, shown in annex) of brilliant degree, and then record good configuration status.

Conclude above-mentioned, the adjusting device of going into bright dark space of spot light of the present utility model, can make the configuration mode (annex is consulted in cooperation) of fine structure 4 by spectrum analysis, promptly can be used for making and produce, so be general or special requirement all need not spend long-time trial and can be used for volume production, therefore can avoid expending quite a lot of financial resources and money in test (tradition is got ready or sandblast), and then the big drawback of solution tradition on die sinking is manufactured, moreover, the utility model can will be gone into bright dark space and be adjusted the output to quite even, and the reliability of no matter producing, yield is all splendid, so have the value of height on the industry.

Yet the above person, it only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, promptly the simple equivalent of being done according to the utility model claim and utility model description generally changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. the adjusting device of going into bright dark space of a spot light incides a LGP with spot light, and through this LGP the homogenising adjustment that shows the glazing briliancy is carried out in the bright dark space of going into of spot light, it is characterized in that:

This LGP corresponds to the fine structure that spot light is provided with several strips.

2. the adjusting device of going into bright dark space of spot light as claimed in claim 1 is characterized in that: these fine structures are the raised line of convergent width up or the groove of convergent width down.

3. the adjusting device of going into bright dark space of spot light as claimed in claim 1 is characterized in that: these fine structures are arranged at two at the end face, bottom surface of LGP or the end, top.

4. the adjusting device of going into bright dark space of spot light as claimed in claim 1, it is characterized in that: this spot light is a light emitting diode.

5. the adjusting device of going into bright dark space of spot light as claimed in claim 1 is characterized in that:

This LGP has one and supplies these fine structures to face upward or downward the base surface of setting, each fine structure has a pair of high relatively point, that should the LGP base surface respectively along the formed long axis of spot light relative direction, reach an axial plane along long axis formation, this axial plane has the angle angle in the high relatively point of end points correspondence of base surface, the high relatively point that reaches corresponding to base surface has a relative altitude, then has a spacing between adjacent two fine structures.

6. the adjusting device of going into bright dark space of spot light as claimed in claim 1 is characterized in that:

This LGP has one and supplies these fine structures to face upward or downward the base surface of setting, each fine structure has a pair of high relatively point that should the LGP base surface respectively, one along the formed long axis of spot light relative direction, reach an axial plane along long axis formation, this axial plane has the angle angle in the high relatively point of end points correspondence of base surface, the high relatively point that reaches corresponding to base surface has a relative altitude, then has a spacing between adjacent two fine structures, light incidence section with spot light is the center, the angle of these fine structures, during constant height, these fine structures can be disposed over against the mode that the light incidence section of answering spot light dwindles spacing gradually towards two sides.

7. the adjusting device of going into bright dark space of spot light as claimed in claim 1 is characterized in that:

This LGP has one and supplies these fine structures to face upward or downward the base surface of setting, each fine structure has a pair of high relatively point that should the LGP base surface respectively, one along the formed long axis of spot light relative direction, reach an axial plane along long axis formation, this axial plane has the angle angle in the high relatively point of end points correspondence of base surface, the high relatively point that reaches corresponding to base surface has a relative altitude, then has a spacing between adjacent two fine structures, light incidence section with spot light is the center, the angle of these fine structures, when spacing is constant, then these fine structures can be disposed in highly gradually high mode towards two sides over against the light incidence section of answering spot light.

8. the adjusting device of going into bright dark space of spot light as claimed in claim 1 is characterized in that:

This LGP has one and supplies these fine structures to face upward or downward the base surface of setting, each fine structure has a pair of high relatively point that should the LGP base surface respectively, one along the formed long axis of spot light relative direction, reach an axial plane along long axis formation, this axial plane has the angle angle in the high relatively point of end points correspondence of base surface, the high relatively point that reaches corresponding to base surface has a relative altitude, then has a spacing between adjacent two fine structures, light incidence section with spot light is the center, the height of these fine structures, when spacing is constant, these fine structures can be disposed in the gradually big mode of angle over against the light incidence section of answering spot light towards two sides.