CN206209146U - Light guide plate, backlight module and display device - Google Patents
Light guide plate, backlight module and display device Download PDFInfo
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- CN206209146U CN206209146U CN201621152438.2U CN201621152438U CN206209146U CN 206209146 U CN206209146 U CN 206209146U CN 201621152438 U CN201621152438 U CN 201621152438U CN 206209146 U CN206209146 U CN 206209146U
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- guide plate
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Abstract
The utility model is related to the technical field of liquid crystal display, there is provided a kind of light guide plate, backlight module and display device.Light guide plate includes that incidence surface is connected and orthogonal first exiting surface and second exiting surface relative with the first exiting surface with incidence surface；Multiple first sites are formed with first exiting surface, multiple second sites are formed with the second exiting surface, multiple first sites are staggered with multiple second sites respectively along the projection perpendicular to the direction of the second exiting surface on the second exiting surface.It is compared with the prior art, the light guide plate that the utility model is provided, light being totally reflected without dot location on the first and second exiting surfaces, diffusing reflection scattering is carried out in dot location, light extraction is reflected again, two light extraction surface sides of such light guide plate energy light extraction, so as to the double-side of light guide plate can be realized.Using the backlight module for having above-mentioned light guide plate, there can be preferable emitting brightness uniformity.Using the display device for having above-mentioned light guide plate, double-sided display can be realized.
Description
Technical field
The utility model is related to the technical field of liquid crystal display, more particularly, to a kind of light guide plate, backlight module and display
Device.
Background technology
Light guide plate design principle comes from the LCDs of notebook computer, is the high-tech that line source is changed into area source
Skill product.Optical grade acryl (PMMA)/PC is base material, with LCD display and the back light model setting technology of notebook computer, thoroughly
The high light line conductivity of light guiding points is crossed, light guiding points are calculated through computer, light guide plate light is reflected into the equal light state system of area source
Cause type.
At present, display product is one side show product, and with development in science and technology, it is public in market, exhibition, Internet bar etc.
Place, more and more employs liquid crystal display device, in order that the spectators of the positive and negative both direction of display device can receive
Show message, traditional mode is mechanically to combine two one side liquid crystal display devices, will two display devices
Put using back-to-back mode, but, it is impossible to energy saving, it is unfavorable for the decline of cost.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of light guide plate, backlight module and display device, purport
Solving in the prior art, light guide plate cannot two-sided light extraction, and then the defect of bi-directional display can not be realized.
A kind of light guide plate that the utility model is provided, including incidence surface and incidence surface connection and orthogonal the
One exiting surface and second exiting surface relative with first exiting surface；Multiple first nets are formed with first exiting surface
Point, is formed with multiple second sites on second exiting surface, multiple first sites are along perpendicular to second exiting surface
Projection of the direction on the second exiting surface stagger with multiple second sites respectively.
Further, first site is distributed on first exiting surface by ranks, and second site is described
It is distributed by ranks on second exiting surface.
Further, the more remote distribution with a distance from the incidence surface of multiple first sites on first exiting surface is closeer
Collection；The more remote distribution with a distance from the incidence surface of multiple second sites on second exiting surface is more intensive.
Further, first site and second site are respectively by silk-screen screen painting to the light guide plate
On.
Further, first site and second site are printed on described by heat pressing and molding mold hot pressing respectively
On light guide plate.
Further, first site and second site are formed to the leaded light by the way that radium-shine equipment is radium-shine respectively
On plate.
A kind of backlight module that the utility model is provided, including the first optical diaphragm group and first optical diaphragm group
The second optical diaphragm group, light source device and above-mentioned light guide plate parallel and be oppositely arranged；The light guide plate is arranged on described
Between first optical diaphragm group and second optical diaphragm group, the light source device is located at the incidence surface one of the light guide plate
Side.
A kind of display device that the utility model is provided, including housing and the center for being arranged on the outer inframe, wherein, should
Display device also includes the first liquid crystal panel being carried on the center, the first liquid crystal panel being carried on the center simultaneously
The second liquid crystal panel and above-mentioned backlight module parallel with first liquid crystal panel and be oppositely arranged, the backlight module
It is arranged between the first liquid crystal panel and the second liquid crystal panel and is supported by the center.
It is compared with the prior art, the light guide plate that the utility model is provided, with relative the first exiting surface and the second light extraction
Face, be formed with multiple first sites on the first exiting surface, be formed with the second exiting surface and staggered respectively with multiple first sites
Multiple second sites, after light enters light guide plate, being totally reflected without dot location on the first and second exiting surfaces, in net
Point position carries out diffusing reflection scattering, then reflects light extraction, in this way, the first and second light extraction surface sides of the light guide plate energy light extraction, from
And the double-side of light guide plate can be realized.
Be compared with the prior art, the backlight module that the utility model is provided, can two-sided light extraction, and can meet two-sided
Under conditions of light extraction, with preferable emitting brightness uniformity.
Be compared with the prior art, the utility model provide can double-sided display, and the bar of double-sided display can met
Under part, with preferable emitting brightness uniformity.
Brief description of the drawings
Fig. 1 is the structural representation of the light guide plate that the utility model embodiment is provided and light source device；
Fig. 2 is the structural representation of the display device that the utility model embodiment is provided.
Main element symbol description
10：Light guide plate 11：Incidence surface
12：First exiting surface 13：Second exiting surface
14：First site 15：Second site
20：Light source device 21：Lamp bar
22：LED lamp bead
30：Backlight module 31：First optical diaphragm group
32：Second optical diaphragm group
100：Display device 1：Housing
2：Center 3：First liquid crystal panel
4：Second liquid crystal panel
Specific embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect become more apparent, with
Lower combination drawings and Examples, are further elaborated to the utility model.It should be appreciated that specific reality described herein
Apply example to be only used to explain the utility model, be not used to limit the utility model.
Realization of the present utility model is described in detail below in conjunction with specific accompanying drawing.
For sake of convenience, hereinafter alleged " left side " " right side " " on " D score and accompanying drawing left and right, upper and lower in itself is to one
Cause, but not to structure of the present utility model restriction effect.
As illustrated in fig. 1 and 2, it is a preferred embodiment that the utility model is provided.
The light guide plate 10 that the present embodiment is provided, including incidence surface 11 and exiting surface connection and orthogonal first light extraction
Face 12 and second exiting surface 13 relative with the first exiting surface 12；Multiple first sites 14 are formed with first exiting surface 12, the
Be formed with multiple second sites 15 on two exiting surfaces 13, multiple first sites 14 along perpendicular to the direction of the second exiting surface 13
Projection on two exiting surfaces 13 is staggered with multiple second sites 15 respectively.
Above-mentioned light guide plate 10, with relative the first exiting surface 12 and the second exiting surface 13, shape on the first exiting surface 12
Into there are multiple first sites 14, multiple second sites staggered respectively with multiple first sites 14 are formed with the second exiting surface 13
15, after light enters light guide plate 10, it is totally reflected without dot location in upper and lower sides, diffusing reflection scattering is carried out in dot location,
Light extraction, the upper and lower sides energy light extraction of such light guide plate 10, you can realize the guide-lighting scheme of double-side, realize two-sided aobvious are reflected again
Show.
Referring to Fig. 1 and 2, the generally rectangular shaped flat board of light guide plate 10, it can be made up of the acrylic plastics of high transmission rate, surface
Unusual light is smooth, so that the total reflection that most of internal light can be regular on its flat surface, leads without injecting to
Outside tabula rasa 10.In the present embodiment, the incidence surface 11 of light guide plate 10 1 and two exiting surfaces 12,13, two 12,13 points of exiting surfaces
The first exiting surface 12 and the second exiting surface 13 Wei be mutually not corresponding and be arranged in parallel, the first exiting surface 12 and the second exiting surface 13
Vertical with incidence surface 11, incidence surface 11 is used to receive the light from light source device 20, and light is imported into the light guide plate 10
Inside, then respectively derived light by the first exiting surface 12 and the second exiting surface 13.
Specifically, miniature lattice point structure is respectively arranged with the first exiting surface 12 and the second exiting surface 13, this first goes out
Miniature lattice point structure in smooth surface 12 includes multiple first sites 14 being formed on the first exiting surface 12, second exiting surface 13
On miniature lattice point structure include being formed in multiple second sites 15 on the second exiting surface 13, the first site 14 and the second site
15 pass through silk-screen screen painting to first exiting surface 12 and the second exiting surface 13 of light guide plate 10 respectively, each first site 14
Rectangle, circular or annular are may each be with each second site 15, so, first net is set by the first exiting surface 12
Put 14 and the second site 15 is set on the second exiting surface 13, brightness and the uniformity of the two-sided light extraction of light guide plate 10 can be improved.The
One site 14 is distributed on the first exiting surface 12 by ranks, and the second site 15 is distributed on the second exiting surface 13 by ranks, also,
Multiple first sites 14 are along the projection perpendicular to the direction of the second exiting surface 13 on the second exiting surface 13 respectively with multiple second
Stagger site 15, that is to say, that the first site 14 and the second site 15 at grade in alternating expression be distributed, therebetween without
Occur simultaneously, when light being derived into the light guide plate 10 on the first exiting surface 12, light is in first exiting surface 12 without dot location
It is totally reflected, is projected by the second site 15 on the second exiting surface 13 again behind second site of light directive 15 of total reflection, and
Diffusing reflection is carried out in the position light for being provided with the first site 14 and reflect light extraction；Likewise, by light on the second exiting surface 13
When line derives the light guide plate 10, light is totally reflected second exiting surface 13 without dot location, and the light of total reflection is penetrated
Projected by the first site 14 on the first exiting surface 12 again to behind the first site 14, and entered in the position for being provided with the second site 15
Row diffusing reflection simultaneously reflects light extraction, so as to realize two uniform light extractions of light-emitting area.
Certainly, the miniature lattice point structure on light guide plate 10 can also be formed by hot pressing mode, such as the first site 14 and the
Two sites 15 can be printed on light guide plate 10 by heat pressing and molding mold hot pressing respectively.
Certainly, the miniature lattice point structure on light guide plate 10 can also be formed using laser mode, such as the first site 14
Formed to light guide plate 10 by the way that radium-shine equipment is radium-shine respectively with the second site 15.
Brightness in view of the side light extraction on light guide plate 10 away from light source device 20 is low compared with the side of close to sources device 20, the
The more remote distribution with a distance from incidence surface 11 of multiple first sites 14 on one exiting surface 12 is more intensive, i.e., the first of light guide plate 10 goes out
From the direction of the side that incidence surface 11 is laterally away near the one of incidence surface 11 in smooth surface 12, the distribution density of the first site 14 is in
Gradually intensive shape is arranged.The more remote distribution with a distance from incidence surface 11 of multiple second sites 15 on second exiting surface 13 is also closeer
Collection, i.e., from the direction of the side that incidence surface 11 is laterally away near the one of incidence surface 11 on the second exiting surface 13 of light guide plate 10,
The distribution density of the second site 15 is in gradually intensive shape arrangement, so it is easy to understand that because distribution density and the light of site are led
Go out intensity to be directly proportional, therefore, it is possible to ensure the uniformity of the emitting brightness of the first exiting surface 12 and the second exiting surface 13 respectively.
Referring to the backlight module 30 that Fig. 2, the present embodiment are provided, including the first optical diaphragm group 31 and the first blooming piece
Group 31 is parallel and the second optical diaphragm group 32, light source device 20 and the above-mentioned light guide plate 10 that are oppositely arranged.Light guide plate 10 sets
Put between the first optical diaphragm group 31 and the second optical diaphragm group 32, light source device 20 is located at the incidence surface 11 1 of light guide plate 10
Side, light source device 20 can be LED light source (it is of course also possible to being cathode fluorescent tube), and it includes lamp bar 21 and is arranged on lamp
Multiple LED lamp beads 22 on bar 21.
Light guide plate of the present utility model 10 is applied to be had the following advantages that during above-mentioned backlight module 30：The energy of backlight module 30
Enough two-sided light extractions, and can be under conditions of two-sided light extraction is met, with preferable emitting brightness uniformity.
The display device 100 that the present embodiment is provided, including housing 1 and the center 2 being arranged in housing 1, wherein, the display
Device 100 also includes the first liquid crystal panel 3 being carried on center 2, the first liquid crystal panel 3 for being carried on center 2 and with the
One liquid crystal panel 3 is parallel and the second liquid crystal panel 4 and above-mentioned backlight module 30 that are oppositely arranged, and backlight module 30 is arranged on
Supported between first liquid crystal panel 3 and the second liquid crystal panel 4 and by center 2.
Using the display device 100 for having above-mentioned light guide plate 10, can double-sided display, and the bar of double-sided display can met
Under part, with preferable emitting brightness uniformity.
Preferred embodiment of the present utility model is these are only, is not used to limit the utility model, it is all in this practicality
Any modification, equivalent or improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of light guide plate, it is characterised in that including incidence surface and incidence surface connection and orthogonal first exiting surface
And second exiting surface relative with first exiting surface；Multiple first sites, described are formed with first exiting surface
Be formed with multiple second sites on two exiting surfaces, multiple first sites along perpendicular to the direction of second exiting surface the
Projection on two exiting surfaces is staggered with multiple second site respectively.
2. light guide plate according to claim 1, it is characterised in that first site is on first exiting surface by row
Column distribution, second site is distributed on second exiting surface by ranks.
3. light guide plate according to claim 1, it is characterised in that multiple first sites on first exiting surface are from institute
The more remote distribution of distance for stating incidence surface is more intensive；Multiple second sites on second exiting surface are with a distance from the incidence surface
More remote distribution is more intensive.
4. light guide plate according to any one of claim 1 to 3, it is characterised in that first site and described second
Site is respectively by silk-screen screen painting to the light guide plate.
5. light guide plate according to any one of claim 1 to 3, it is characterised in that first site and described second
Site is printed on the light guide plate by heat pressing and molding mold hot pressing respectively.
6. light guide plate according to any one of claim 1 to 3, it is characterised in that first site and described second
Site is formed to the light guide plate by the way that radium-shine equipment is radium-shine respectively.
7. a kind of backlight module, it is characterised in that including the first optical diaphragm group is parallel with first optical diaphragm group and phase
To the second optical diaphragm group, light source device and the light guide plate as any one of claim 1 to 6 that set；It is described to lead
Tabula rasa is arranged between first optical diaphragm group and second optical diaphragm group, and the light source device is located at the leaded light
The incidence surface side of plate.
8. a kind of display device, including housing and the center for being arranged on the outer inframe, it is characterised in that also including being carried on
State the first liquid crystal panel on center, the first liquid crystal panel being carried on the center and parallel with first liquid crystal panel
And the second liquid crystal panel and backlight module as claimed in claim 7 being oppositely arranged, the backlight module is arranged on first
Supported between liquid crystal panel and the second liquid crystal panel and by the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621152438.2U CN206209146U (en) | 2016-10-24 | 2016-10-24 | Light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621152438.2U CN206209146U (en) | 2016-10-24 | 2016-10-24 | Light guide plate, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206209146U true CN206209146U (en) | 2017-05-31 |
Family
ID=58757339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621152438.2U Active CN206209146U (en) | 2016-10-24 | 2016-10-24 | Light guide plate, backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206209146U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333836A (en) * | 2018-01-22 | 2018-07-27 | 阿纳克斯（苏州）轨道系统有限公司 | A kind of single backlight double-sided LCD abnormity display applied on tramcar |
| CN109532065A (en) * | 2018-11-30 | 2019-03-29 | 合肥泰沃达智能装备有限公司 | A kind of manufacturing method of half-reflection and half-transmission light guide plate |
| CN109613738A (en) * | 2019-02-26 | 2019-04-12 | 合肥惠科金扬科技有限公司 | A kind of display and display device |
| WO2022198708A1 (en) * | 2021-03-25 | 2022-09-29 | 武汉华星光电技术有限公司 | Display module and display system |
-
2016
- 2016-10-24 CN CN201621152438.2U patent/CN206209146U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333836A (en) * | 2018-01-22 | 2018-07-27 | 阿纳克斯（苏州）轨道系统有限公司 | A kind of single backlight double-sided LCD abnormity display applied on tramcar |
| CN109532065A (en) * | 2018-11-30 | 2019-03-29 | 合肥泰沃达智能装备有限公司 | A kind of manufacturing method of half-reflection and half-transmission light guide plate |
| CN109532065B (en) * | 2018-11-30 | 2021-02-19 | 合肥泰沃达智能装备有限公司 | Manufacturing method of semi-reflective and semi-transparent light guide plate |
| CN109613738A (en) * | 2019-02-26 | 2019-04-12 | 合肥惠科金扬科技有限公司 | A kind of display and display device |
| WO2022198708A1 (en) * | 2021-03-25 | 2022-09-29 | 武汉华星光电技术有限公司 | Display module and display system |
| US11906886B2 (en) | 2021-03-25 | 2024-02-20 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display module and display system |
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