CN205246929U - Light guide plate, backlight module and display device - Google Patents
Light guide plate, backlight module and display device Download PDFInfo
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- CN205246929U CN205246929U CN201520955067.0U CN201520955067U CN205246929U CN 205246929 U CN205246929 U CN 205246929U CN 201520955067 U CN201520955067 U CN 201520955067U CN 205246929 U CN205246929 U CN 205246929U
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Abstract
The utility model discloses a light guide plate, backlight module and display device. This light guide plate includes body, a plurality of income photo structure, a plurality of first micro -structure and a plurality of second micro -structure. The body is including going into the plain noodles. It sets up on going into the plain noodles to go into photo structure interval ground. Each is gone into the photo structure and includes the top surface and connect respectively in two sides of two relative sides of top surface. It has the distance to go into the top surface of photo structure and go into between the plain noodles. First micro -structure setting is on each top surface of going into the photo structure. The second micro -structure sets up in going into between the photo structure.
Description
Technical field
The utility model relates to a kind of leaded light component and application thereof, particularly relates to a kind of LGP and at backlight moduleAnd application on display device.
Background technology
In traditional side light-entering type backlight module, conventionally can use a plurality of light emitting diodes as light source. But, byLight field angle in each light emitting diode is limited, causes the position between the corresponding two adjacent light emitting diodes of LGP to occurThe problem that blanking bar and emitting brightness are inhomogeneous.
For addressing the above problem, the general practice can arrange micro-structural at the incidence surface of LGP, by micro-structural can make intoLight light is even. But this kind of practice is limited for the light field angle that changes light emitting diode, when the quantity of light emitting diode subtractsWhen interval less and between it is strengthened, still can produce the problem that blanking bar and brightness disproportionation appear in LGP.
Utility model content
Therefore, an object of the present utility model is to provide a kind of LGP, backlight module and display device, wherein, leadsTabula rasa can increase the light inlet angle of the light that light emitting diode produces, so can promote LGP be applied to backlight module andOutward appearance taste and outgoing light homogeneity when display device.
According to the utility model above-mentioned purpose, a kind of LGP is proposed. This LGP comprises body, a plurality of light inlet knotStructure, a plurality of the first micro-structural and a plurality of the second micro-structural. Body comprises incidence surface. Light entrance structures thereof be spaced apart and arranged in intoOn light face. Wherein, each light entrance structures thereof comprises end face and is connected to two sides of relative two sides of end face.And, between the end face of light entrance structures thereof and incidence surface, there is distance. The first micro-structural is arranged on the end face of each light entrance structures thereofOn. The second micro-structural is arranged between light entrance structures thereof.
According to embodiment of the utility model, above-mentioned each light entrance structures thereof is trapezium structure, and each side isInclined-plane.
According to another embodiment of the utility model, above-mentioned each first micro-structural and the second micro-structural are cylindrical (R-Cut) structure or corner post shape (V-cut) structure.
According to the another embodiment of the utility model, the first micro-structural on the end face of the wherein one of above-mentioned light entrance structures thereofQuantity is more than the quantity of the second micro-structural between two adjacent light entrance structures thereofs that are arranged on wherein.
According to the utility model embodiment again, the first micro-structural on the end face of the wherein one of above-mentioned light entrance structures thereofQuantity and the quantitative proportion that is arranged on the second micro-structural between the light entrance structures thereof that wherein two are adjacent are 2: 1.
According to the utility model above-mentioned purpose, a kind of backlight module is separately proposed. This backlight module comprise aforementioned LGP withAnd at least one light source. The adjacent setting of incidence surface of light source and LGP.
According to the utility model above-mentioned purpose, reintroduce a kind of display device. This display device comprises aforementioned backlight moduleAnd display floater. Wherein, the body of the LGP in aforementioned backlight module also comprises exiting surface. Display floater and LGPThe adjacent setting of exiting surface.
From the above, the utility model arranges the light entrance structures thereof of protrusion by interval on the incidence surface of LGP, withMake between the end face of light entrance structures thereof and incidence surface height of formation poor. By this, can make sufficient light enter from the side of light entrance structures thereofIn LGP, to be lifted into light quantity. On the other hand, the side of light entrance structures thereof is inclined-plane, thus can increase the area of refracted ray, andImprove light and enter the light inlet angle of LGP, and then can improve the problem that blanking bar and brightness disproportionation appear in LGP.
On the other hand, the incidence surface of LGP of the present utility model and the end face of light entrance structures thereof are respectively equipped with micro-structural,Therefore light can first pass through the refraction of micro-structural and form the larger optic angle that enters before entering LGP, can make equally light inlet more equalEven, and then the outgoing light homogeneity of lifting LGP and outward appearance taste.
Brief description of the drawings
For more complete understanding embodiment and advantage thereof, referring now to the following description done by reference to the accompanying drawings, wherein:
Fig. 1 is the sectional perspective schematic diagram illustrating according to a kind of backlight module of the utility model the first embodiment;
Fig. 2 illustrates according to looking schematic diagram on the part of a kind of backlight module of the utility model the first embodiment;
Fig. 3 illustrates according to looking schematic diagram on the part of a kind of backlight module of the utility model the second embodiment;
Fig. 4 is what to illustrate according to the light field angle of the LGP briliancy of framework of the present utility model and known framework and light sourceBe related to schematic diagram; And
Fig. 5 is the local device schematic diagram illustrating according to a kind of display device of an embodiment of the present utility model.
Detailed description of the invention
Simultaneously with reference to shown in Fig. 1 and Fig. 2, its be illustrate respectively according to the one of the utility model the first embodiment backlightOn the sectional perspective schematic diagram of module and part, look schematic diagram. The backlight module 100 of present embodiment comprise LGP 120 withAnd with the light source 140 of LGP 120 adjacent settings. The LGP 120 of present embodiment comprises body 121, a plurality of light inlet knotStructure 122, a plurality of the first micro-structural 123 and a plurality of the second micro-structural 124.
As shown in Figure 2, body 121 comprises incidence surface 121a and exiting surface 121b. Light source 140 is adjacent with incidence surface 121aArrange. In the present embodiment, light entrance structures thereof 122 is for protruding from the convex structure of incidence surface 121a. In some instances, light inlet knotStructure 122 can be trapezium structure, and light entrance structures thereof 122 is spaced apart and arranged on incidence surface 122a. That is to say adjacent two light inletsBetween structure 122, there is light inlet space 122c. In one embodiment, each light entrance structures thereof 122 comprise end face 122a andBe connected to two side 122b of relative two sides of end face 122a. That is to say the end face of light entrance structures thereof 122Between 122a and incidence surface 121a, have a segment distance D1, and one of them side of side 122b is connected in one of end face 122aSide, another side of side 122b is connected in incidence surface 121a. In some instances, side 122b can be inclined-plane. By this,By the design of light inlet space 122c, can make enough light enter body 121 via light inlet space 122c from inclined-plane 122bIn, and then can promote the light quantity that enters of LGP 120 entirety. Moreover the design of inclined-plane 122b can increase the area of refracted ray, andImprove light and enter the light inlet angle of body 121, and then improve the problem that blanking bar and brightness disproportionation appear in LGP 120.
Continue with reference to Fig. 1 and Fig. 2, in the present embodiment, the first micro-structural 123 is arranged on the end face of light entrance structures thereof 122On 122a. It is upper that the second micro-structural 124 is arranged on incidence surface 121a, and between light entrance structures thereof 122. That is to say light inletA part of face 121a is provided with light entrance structures thereof 122, and the part that does not set into photo structure 122 is provided with the second micro-structural 124. ?In some embodiment, the first micro-structural 123 and the second micro-structural 124 are list structure. And, the first micro-structural 123 andThe bearing of trend of two micro-structurals 124 is perpendicular to the bearing of trend on the long limit of incidence surface 121a. In the present embodiment, the first micro-structural123 and second micro-structural 124 be cylindrical structural. By this, the light that light source 140 produces can before entering body 121First through the refraction of the first micro-structural 123 and the second micro-structural 124 and form the larger optic angle that enters, therefore can make light inlet more even.
Continue with reference to Fig. 1 and Fig. 2, in certain embodiments, the quantity of the first micro-structural 123 and the second micro-structural 124 canBe designed to identical or not identical according to different design requirements. Better, on the end face 122a of one of them light entrance structures thereof 122The quantity of the first micro-structural 123 be greater than and be arranged on the second micro-structural 124 between two adjacent light entrance structures thereofs 122 whereinQuantity. In the embodiment shown in Fig. 1 and Fig. 2, the first micro-structural 123 on the end face 122a of one of them light entrance structures thereof 122Quantity and the quantitative proportion that is arranged on wherein the second micro-structural 124 between two adjacent light entrance structures thereofs 122 be 2: 1, itsCan reach preferably optical effect. Clearer, the first micro-structural 123 of the embodiment shown in Fig. 1 and Fig. 2 and second micro-knotThe quantity of structure 124 is exemplary illustration use than only, not in order to limit the utility model.
Clearer, Fig. 1 and the first micro-structural 123 and the second micro-structural 124 embodiment illustrated in fig. 2 are cylindrical(R-cut) structure, not in order to limit the utility model. In other embodiments, the first micro-structural and the second micro-structural can be hadThere is different designs. Please refer to Fig. 3, it is the part illustrating according to a kind of backlight module of the utility model the second embodimentOn look schematic diagram. The structure of the backlight module 200 of present embodiment and the structure of aforementioned backlight module 100 are roughly the same, differenceOnly be that first micro-structural 223 of LGP 220 of backlight module 200 and the second micro-structural 224 have different shapes and establishMeter, in Fig. 3, the first micro-structural 223 and the second micro-structural 224 are corner post shape (V-cut) structure.
Continue with reference to Fig. 3, LGP 220 comprises body 221, a plurality of light entrance structures thereof 222, a plurality of first micro-knot equallyStructure 223 and a plurality of the second micro-structural 224. As shown in Figure 3, body 221 comprises incidence surface 221a and exiting surface 221b. LightSource 140 setting adjacent with incidence surface 221a. In the present embodiment, light entrance structures thereof 222 is for protruding from the convex knot of incidence surface 221aStructure. In some instances, light entrance structures thereof 222 can be trapezium structure, and light entrance structures thereof 222 is spaced apart and arranged in incidence surface 221aUpper, and there is light inlet space 222c between adjacent two light entrance structures thereofs 222. In the present embodiment, each light entrance structures thereof 222 is sameSample comprises end face 222a and is connected to two side 222b of relative two sides of end face 222a. At the present embodimentIn, side 222b is inclined-plane. By this, by the design of light inlet space 222c, can make enough light via light inlet space 222cAnd enter body 221 from inclined-plane 222b, and then can promote the light quantity that enters of LGP 220 entirety. Moreover, the design of inclined-plane 222bCan increase the area of refracted ray, and the light inlet angle that improves light and enter body 221, can improve equally LGP 220 and occurThe problem of blanking bar and brightness disproportionation.
Continue with reference to Fig. 3, in the present embodiment, the first micro-structural 223 is arranged on the end face 222a of light entrance structures thereof 222.It is upper that the second micro-structural 224 is arranged on incidence surface 221a, and between light entrance structures thereof 222. That is to say, incidence surface 221a'sA part is provided with light entrance structures thereof 222, and the part that does not set into photo structure 222 is provided with the second micro-structural 224. At the present embodimentIn, the first micro-structural 223 and the second micro-structural 224 are list structure, and the first micro-structural 223 and the second micro-structural 224Bearing of trend is perpendicular to the bearing of trend on the long limit of incidence surface 221a. In the present embodiment, the first micro-structural 223 and second is micro-Structure 224 is angle column construction. By this, the light that light source 140 produces can be first micro-through first before entering body 221The refraction of structure 223 and the second micro-structural 224 and form the larger optic angle that enters, therefore can make light inlet more even. At some embodimentIn, the first micro-structural 223 of present embodiment can be established according to different design requirements equally from the quantity of the second micro-structural 224Count into identical or not identical.
Separately with reference to Fig. 4, it is what to illustrate according to the LGP briliancy of framework of the present utility model and known framework and light sourceLight field angle be related to schematic diagram. As shown in Figure 4, the brightness that curve 301 is simulated without the LGP that micro-structural is set for incidence surfaceDegree and light field angular relationship line. Curve 303 arranges briliancy and the light field angle that the LGP of general micro-structural is simulated for incidence surfaceDegree relation line. Curve 305 is simulated briliancy and light field angular relationship line by the LGP of the utility model embodiment. By Fig. 4Known, gap between briliancy peak and the minimum of the LGP of curve 305 representatives is less and light field is larger, and curveGap between briliancy peak and the minimum of the LGP of 301 and 303 representatives is large and light field is less. This represents, this realityCome evenly by the LGP briliancy of the more known framework of briliancy of the LGP of novel embodiment.
Separately, with reference to Fig. 5, it is the local device illustrating according to a kind of display device of an embodiment of the utility modelSchematic diagram. The display device 400 of present embodiment comprises backlight module 100 and display floater 410. As shown in Figure 5, display surfacePlate 410 is arranged on the front of the exiting surface 121b of the LGP 120 of backlight module 100, can reach equally order as hereinbefore, therefore do not repeat them here. Clearer, this case embodiment is applied to display device with the backlight module 100 shown in Fig. 1In 400, be only used as exemplary illustration use, not in order to limit the utility model. In other embodiments, backlight shown in Fig. 3Module 200 also can be applicable in display device, to produce same effect.
From above-mentioned the utility model embodiment, the utility model arranges by interval on the incidence surface of LGPThe light entrance structures thereof protruding, so that height of formation is poor between the end face of light entrance structures thereof and incidence surface. By this, can make sufficient light from enteringThe side of photo structure enters in LGP, to be lifted into light quantity. On the other hand, the side of light entrance structures thereof is inclined-plane, therefore can increaseThe area of refracted ray, and improve light and enter the light inlet angle of LGP, and then can improve LGP and occur blanking bar and brightSpend uneven problem.
On the other hand, the incidence surface of LGP of the present utility model and the end face of light entrance structures thereof are respectively equipped with micro-structural,Therefore light can first pass through the refraction of micro-structural and form the larger optic angle that enters before entering LGP, can make equally light inlet more equalEven, and then the outgoing light homogeneity of lifting LGP and outward appearance taste.
Although the utility model discloses as above with embodiment, so it is not in order to limit the utility model, Ren HebenThe those skilled in the art in field are not departing from spirit and scope of the present utility model, when being used for a variety of modifications and variations, because ofThis protection domain of the present utility model when with claim the person of being defined be as the criterion.
Symbol description
100 backlight modules
120 LGPs
121 bodies
121a incidence surface
121b exiting surface
122 light entrance structures thereofs
122a end face
122b side
122c light inlet space
123 first micro-structurals
124 second micro-structurals
140 light sources
200 backlight modules
220 LGPs
221 bodies
221a incidence surface
221b exiting surface
222 light entrance structures thereofs
222a end face
222b side
222c light inlet space
223 first micro-structurals
224 second micro-structurals
301 curves
303 curves
305 curves
400 display devices
410 display floaters
D1 distance.
Claims (7)
1. a LGP, comprising:
Body, comprises incidence surface;
A plurality of light entrance structures thereofs, it is spaced apart and arranged on described incidence surface, and wherein, described in each, light entrance structures thereof comprises end faceAnd be connected to two sides of relative two sides of described end face, and wherein, between described end face and described incidence surfaceThere is distance;
A plurality of the first micro-structurals, it is arranged on the described end face of light entrance structures thereof described in each; And
A plurality of the second micro-structurals, are arranged between described light entrance structures thereof.
2. LGP according to claim 1, wherein, described in each, light entrance structures thereof is trapezium structure, and each instituteStating side is inclined-plane.
3. LGP according to claim 1, wherein, described in each, the first micro-structural and described the second micro-structural are circleCylindricality (R-cut) structure or corner post shape (V-cut) structure.
4. LGP according to claim 1, wherein, on the described end face of the wherein one of described light entrance structures thereof described inThe quantity of the first micro-structural is than the number of described the second micro-structural between two adjacent described light entrance structures thereofs that are arranged on whereinAmount is many.
5. LGP according to claim 4, wherein, on the described end face of the wherein one of described light entrance structures thereof described inThe quantity of the first micro-structural and be arranged on the number of described the second micro-structural between the described light entrance structures thereof that wherein two are adjacentAmount ratio is 2: 1.
6. a backlight module, comprising:
According to the LGP described in any one in claim 1 to 5; And
At least one light source, the adjacent setting of described incidence surface of itself and described LGP.
7. a display device, comprising:
Backlight module according to claim 6, wherein, the body of described LGP also comprises exiting surface; And
Display floater, the adjacent setting of described exiting surface of itself and described LGP.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955067.0U CN205246929U (en) | 2015-11-25 | 2015-11-25 | Light guide plate, backlight module and display device |
| TW104219604U TWM522363U (en) | 2015-11-25 | 2015-12-07 | Light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955067.0U CN205246929U (en) | 2015-11-25 | 2015-11-25 | Light guide plate, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205246929U true CN205246929U (en) | 2016-05-18 |
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ID=55946009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520955067.0U Active CN205246929U (en) | 2015-11-25 | 2015-11-25 | Light guide plate, backlight module and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205246929U (en) |
| TW (1) | TWM522363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781670A (en) * | 2020-07-07 | 2020-10-16 | 扬昕科技(苏州)有限公司 | Light guide plate and light source module |
-
2015
- 2015-11-25 CN CN201520955067.0U patent/CN205246929U/en active Active
- 2015-12-07 TW TW104219604U patent/TWM522363U/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781670A (en) * | 2020-07-07 | 2020-10-16 | 扬昕科技(苏州)有限公司 | Light guide plate and light source module |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM522363U (en) | 2016-05-21 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |