CN203215569U - Light guide plate and display device - Google Patents
Light guide plate and display device Download PDFInfo
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- CN203215569U CN203215569U CN 201320208801 CN201320208801U CN203215569U CN 203215569 U CN203215569 U CN 203215569U CN 201320208801 CN201320208801 CN 201320208801 CN 201320208801 U CN201320208801 U CN 201320208801U CN 203215569 U CN203215569 U CN 203215569U
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- lgp
- reflecting part
- light
- groove
- led lamp
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Abstract
An embodiment of the utility model provides a light guide plate and a display device. A groove used for accommodating an LED on an LED light bar is formed in a light incoming surface of the light guide plate, a reflecting part is arranged at the part outside the groove of the light incoming surface, and the included angle between the reflecting part and a light emitting surface of the light guide plate is smaller than or equal to 45 degrees. After light emitted by the LED light bar is irradiated to the light guide plate, the light is reflected by the reflecting part and then enters the light guide plate, that is, a light path of the light in a buffering area is irradiated to the reflecting part and then reflected to a light emitting area, the LED light bar is arranged in the groove, therefore, the width of a frame of a manufactured backlight module is determined by the width of the buffering area, and the narrow frame of the backlight module is obtained.
Description
Technical field
The utility model relates to lcd technology, relates in particular to a kind of LGP and display device.
Background technology
In the production of module backlight, usually LGP is connected light emitting diode ((light-emitting diode, LED) lamp bar, the light of LED lamp bar emission is injected from the incidence surface of LGP, in LGP, carry out total reflection, incident ray is destroyed in the total reflection of LGP inside in the site that is arranged in the LGP output optical zone, and light is evenly penetrated from the exiting surface of LGP, realizes changing into area source by spot light.For side incident type LGP, incidence surface is arranged on the side, after connecting LED lamp bar, LGP is more intense near the part brightness of incidence surface, for the brightness that guarantees display screen even, usually output optical zone is arranged on the position after the incidence surface preseting length of LGP, thereby guarantee from the light luminance of exiting surface ejaculation even, zone within the incidence surface preseting length of LGP is the buffer area of LGP, in module backlight, buffer area and LED lamp bar are positioned at non-display area, place the frame region of module backlight usually.
As shown in Figure 1, LED lamp bar 101 is connected with the incidence surface 103 of LGP 102, zone in the LGP shown in the vertical line is the buffer area, zone shown in the oblique line is output optical zone, the buffer path length of S for needing, the light that sends from LED lamp bar 101 is after injecting LGP 102 perpendicular to incidence surface 103, earlier through the buffer area, enter output optical zone again, in output optical zone because the effect of site on the site face 104, penetrate from the exiting surface 105 of LGP 102, when making module backlight, the width of module frame backlight be LED lamp bar 101 perpendicular to the thickness of incidence surface 103 directions and the buffer area width on the LGP 102 and, therefore there is the wideer problem of frame in module backlight, brings a lot of inconvenience in process of production.
The utility model content
The utility model embodiment provides a kind of LGP and display device, to realize the narrow frame of module backlight.
A kind of LGP comprises:
Be arranged on the groove that is used for holding the LED on the LED lamp bar on the LGP incidence surface;
Reflecting part is arranged on LGP incidence surface upper groove part in addition, is used for the light of LED lamp bar emission is reflexed to the output optical zone of LGP, and the number of degrees of the angle between the exiting surface of reflecting part and LGP are more than or equal to 45 degree.
A kind of display device comprises the LGP that the utility model embodiment provides.
The utility model embodiment provides a kind of LGP and display device, incidence surface at LGP arranges a groove that is used for holding the LED on the LED lamp bar, part beyond the groove of incidence surface arranges reflecting part, and the number of degrees of the angle between the exiting surface of reflecting part and LGP are more than or equal to 45 degree.After the light of LED lamp bar emission is injected LGP, enter the output optical zone of LGP by the reflection of reflecting part, be that the light path of light in the buffer area is to be reflected onto output optical zone after shining reflecting part, and LED lamp bar places in the groove, therefore the border width of the module backlight that is made into is only determined by the width of buffer area, has realized the narrow frame of module backlight.
Description of drawings
The structural representation of a kind of LGP that Fig. 1 provides for prior art;
One of structural representation of the LGP that Fig. 2 provides for the utility model embodiment;
One of index path of the LGP that Fig. 3 provides for the utility model embodiment;
Two of the index path of the LGP that Fig. 4 provides for the utility model embodiment;
One of structural representation of the preferable LGP that Fig. 5 provides for the utility model embodiment;
Two of the structural representation of the preferable LGP that Fig. 6 provides for the utility model embodiment;
Three of the structural representation of the preferable LGP that Fig. 7 provides for the utility model embodiment;
The structural representation of a kind of reflecting part that Fig. 8 provides for the utility model embodiment.
The specific embodiment
The utility model embodiment provides a kind of LGP 102 and display device, incidence surface 103 at LGP 102 arranges a groove that is used for holding the LED on the LED lamp bar 101, part beyond the groove of incidence surface 103 arranges reflecting part, and the number of degrees of the angle between the exiting surface 105 of reflecting part and LGP 102 are more than or equal to 45 degree.Reflecting part reflexes to the light of LED lamp bar 101 emissions the output optical zone of LGP 102, be that the light path of light in the buffer area is to be reflected onto output optical zone after shining reflecting part, and LED lamp bar 101 places in the groove, therefore the border width of the module backlight that is made into is only determined by the width of buffer area, has realized the narrow frame of module backlight.
In order to guarantee the display effect of LGP 102, usually, near the incidence surface 103 of side incident type LGP 102, it is the buffer area, after output optical zone is arranged on the buffer area, cause the bright dipping of LGP 102 inhomogeneous to avoid because the part of LGP 102 close LED lamp bars 101 is bright excessively, the light that LED lamp bar 101 sends enters output optical zone again through the buffer area, and since in the output optical zone on the site face 104 effect of site penetrate from the exiting surface 105 of LGP 102.When making module backlight, the border width of module backlight be LED lamp bar 101 perpendicular to the thickness of incidence surface direction and the buffer area on the LGP 102 perpendicular to the length of incidence surface 103 directions and, therefore common module frame backlight is wideer.
As shown in Figure 2, the utility model embodiment provides a kind of LGP 102, comprising:
Be arranged on the groove 106 that is used for holding the LED on the LED lamp bar 101 on LGP 102 incidence surfaces 103;
Reflecting part 107, be arranged on LGP 102 incidence surfaces, 103 upper grooves 106 part in addition, be used for the light of LED lamp bar 101 emissions is reflexed to the output optical zone of LGP 102, the number of degrees of the angle between the exiting surface 105 of reflecting part 107 and LGP 102 are more than or equal to 45 degree.
The utility model embodiment places groove 106 on LGP 102 incidence surfaces 103 with the LED on the LED lamp bar 101, after the light that LED lamp bar 101 is launched is injected LGP 102, incident ray is reflexed to the output optical zone of LGP 102 by the reflecting part 107 that is arranged on incidence surface 103 remainders, as shown in Figure 2, the zone shown in the vertical line is the buffer area in the LGP 102, zone shown in the oblique line is output optical zone, and the light path of light in the buffer area that LED lamp bar 101 sends is to be reflected onto output optical zone after shining reflecting part 107.
When the number of degrees of the angle between the exiting surface of reflecting part 107 and LGP 102 are 45 when spending, the LGP 102 that the utility model embodiment provides at the index path of buffer area as shown in Figure 3, the buffer path length S=b+c that wherein needs, because LED lamp bar 101 places groove 106 (as shown in Figure 2), therefore use the border width of the module backlight of the LGP 102 that the utility model embodiment provides to be L=m+d, side incident type LGP 102 shown in Figure 1 at the index path of buffer area shown in arrow among Fig. 1, if the thickness of LED lamp bar 101 is D, the length of the buffer path that needs is constant, therefore use the border width of the module backlight that side incident type LGP 102 shown in Figure 1 makes to be L=D+S=D+b+c, because the angle among the utility model embodiment between reflecting part and the exiting surface 105 is 45 degree, so a=b, c=m+d-a, therefore the border width of the module backlight of side incident type LGP shown in Figure 1 is D+m+d, this shows, the frame of the module backlight of the LGP 102 that use the utility model embodiment provides is littler than the frame of the module backlight that uses side incident type LGP 102 shown in Figure 1.
When the number of degrees of the angle between the exiting surface of reflecting part 107 and LGP 102 are spent greater than 45, the LGP 102 that the utility model embodiment provides at the index path of buffer area as shown in Figure 4, the buffer path length S=b+c that needs, because LED lamp bar 101 places groove 106 (as shown in Figure 2), therefore use the border width of the module backlight of the LGP 102 that the utility model embodiment provides to be L=m+d, side incident type LGP 102 shown in Figure 1 at the index path of buffer area shown in arrow among Fig. 1, if the thickness of LED lamp bar 101 is D, the length of the buffer path that needs is constant, therefore use the border width of the module backlight that side incident type LGP 102 shown in Figure 1 makes to be L=D+S=D+b+c, because the angle among the utility model embodiment between reflecting part and exiting surface 105 directions is greater than 45 degree, a＜b then, c〉m+d-a, therefore the border width of the module backlight of side incident type LGP shown in Figure 1 is greater than D+m+d, this shows that the frame of the module backlight of the LGP 102 that use the utility model embodiment provides is littler than the frame of the module backlight that uses side incident type LGP 102 shown in Figure 1.
The groove 106 of the LGP 102 that the utility model embodiment provides can be arranged on the edge of incidence surface 103, also can be arranged on the middle part of incidence surface 103, illustrates below by specific embodiment.
Embodiment one,
In the practical application, the groove 106 of LGP 102 can be arranged on the edge of the exiting surface 105 of close LGP 102 on LGP 102 incidence surfaces 103, be arranged to reflecting part 107 at the remainder of incidence surface 103.
Concrete, as shown in Figure 5, the utility model embodiment provides a kind of preferable LGP 102, and the groove 106 of this LGP 102 is arranged on the edge of the exiting surface 105 of close LGP 102 on LGP 102 incidence surfaces 103.The led section of LED lamp bar 101 is inserted in the groove 106, and the light that LED lamp bar 101 sends is injected in the LGP 102 perpendicular to the exiting surface 105 of LGP 102, and the remainder of LED lamp bar 101 is positioned at the top of the exiting surface 105 of LGP 102.Remainder at incidence surface 103 arranges reflecting part 107, the number of degrees of the angle between the exiting surface 105 of reflecting part 107 and LGP 102 are 45 degree, the zone shown in the vertical line is the buffer area in the LGP 102, zone shown in the oblique line is output optical zone, and the light that LED lamp bar 101 is injected enters the output optical zone of LGP 102 after reflecting part 107 reflections in the buffer area of LGP 102.
Groove 106 is arranged on the edge of LGP 102 incidence surfaces, then other parts of LED lamp bar 101 can place outside the groove 106, groove 106 only needs the LED that can hold on the LED lamp bar 101 to get final product, and need not change the size of LGP 102 or LED lamp bar 101 in order to allow groove 106 all hold LED lamp bar 101.Relatively be convenient to realize.
Embodiment two,
The difference of present embodiment and embodiment one only is the groove of LGP 102 is arranged on the middle part of the incidence surface 103 of LGP 102, and reflecting part is arranged on the upper and lower of incidence surface 103.
Concrete, as shown in Figure 6, the utility model embodiment provides another kind of LGP 102, the groove 106 of this LGP 102 is arranged on the middle part of the incidence surface 103 of LGP 102, the upper and lower of incidence surface 103 is reflecting part, the number of degrees of the angle between the exiting surface 105 of reflecting part and LGP 102 are 45 degree, the zone shown in the vertical line is the buffer area in the LGP 102, zone shown in the oblique line is output optical zone, this scheme can make on two faces that are parallel to each other on the LED lamp bar 101 LED all is set, the light of LED lamp bar 101 incidents passes through the reflection of the reflecting part 107 of groove 106 both sides in the buffer area, enter the output optical zone of LGP 102.
Embodiment three,
The difference of present embodiment and embodiment one only is groove is arranged on the incidence surface 103 of LGP 102 edge near the site face 104 of LGP 102, is arranged to reflecting part 107 at the remainder of incidence surface 103.
Concrete, as shown in Figure 7, the utility model embodiment provides another kind of LGP 102, the groove 106 of this LGP 102 is arranged on the incidence surface 103 of LGP 102 edge near the site face 104 of LGP 102, the LED of LED lamp bar 101 inserts in the groove 106, and the remainder of LED lamp bar 101 is positioned at the below of the site face 104 of LGP 102.Remainder at incidence surface 103 arranges reflecting part 107, the number of degrees of the angle between the exiting surface 105 of reflecting part 107 and LGP 102 are 45 degree, zone shown in the vertical line is the buffer area in the LGP 102, and the light that the zone is injected for output optical zone LED lamp bar 101 shown in the oblique line enters the output optical zone of LGP 102 after reflecting part 107 reflections in the buffer area of LGP 102.
Certainly, more than three kinds of embodiment only provide three kinds of preferable set-up modes, those skilled in the art can adopt other feasible patterns that groove 106 and reflecting part 107 are set, no longer one by one the narration.
In the practical application, reflecting part 107 can only be made of a reflecting slant, also can be constituted by a plurality of reflecting slant, as shown in Figure 8, reflecting part 107 is made of two reflecting slant 108, after light is injected LGP 102, in the buffer area through entering output optical zone after twice the reflection, further reduce the width of the module frame backlight made, those skilled in the art can arrange voluntarily according to actual state.
Preferable, arrange for convenience, reflecting part 107 can be set to only constituted by an inclined-plane, and the number of degrees that the angle between the exiting surface 105 of reflecting part 107 and LGP 102 is set are for more than or equal to 45 degree, and less than 50 degree, wherein, when reflecting part 107 does not link to each other with the exiting surface 105 of LGP 102, angle between the exiting surface 105 of reflecting part 107 and LGP 102 is the angle between the plane at the plane at reflecting part 107 places and LGP 102 places, further, in order to obtain preferable display effect, can make the angle between the exiting surface 105 of reflecting part 107 and LGP 102 is miter angle, wherein, when reflecting part 107 does not link to each other with the exiting surface 105 of LGP 102, angle between the exiting surface 105 of reflecting part 107 and LGP 102 is the angle between the plane at the plane at reflecting part 107 places and LGP 102 places, reflecting part 107 is if be set to smooth inclined-plane, light is with after injecting LGP 102 perpendicular to exiting surface 105 directions of LGP 102, reflection by reflecting part 107, the direction of reflection back light is vertical with the incident direction of light, and with commonly used side incident type LGP 102 to go into light direction identical, can obtain liquid crystal display effect preferably.
Preferable, the part beyond LGP 102 incidence surfaces 103 upper grooves 106 all can be set to reflecting part 107, make the thickness of LGP 102 less, thereby reduce the thickness of module backlight.
In the practical application, can adopt the method that attaches reflector plate or apply the reflecting layer to realize the reflection function of reflecting part 107.
Certainly, those skilled in the art can adopt other feasible modes to realize the reflection function of reflecting part 107, narrates no longer one by one herein.
Concrete, reflecting part 107 can be set to white reflection reflecting part or minute surface reflective portion, certainly, those skilled in the art can adopt other feasible patterns that reflecting part 107 is set, herein narration no longer one by one.
When the incidence surface 103 that groove 106 is arranged on LGP 102 near the edge of the exiting surface 105 of LGPs 102 on the time, groove 106 can be arranged to the groove formed by two vertical faces, and make a face of groove parallel with the exiting surface 105 of LGP 102, then the light of LED is injected LGP 102 perpendicular to this face.
Usually, when the exiting surface 105 of the light of LED lamp bar 101 emission and described LGP 102 is vertical, a face that is groove 106 is parallel with the exiting surface 105 of LGP 102, can groove 106 be set to greater than 1/4th of LGP 102 thickness perpendicular to the height of exiting surface 105 directions of LGP 102, less than 1/2nd of LGP 102 thickness, preferable, because the thickness of LED is generally 0.8mm, and the thickness of LGP 102 is 3mm, therefore, can groove 106 be set to 1/3rd of LGP 102 perpendicular to the height of LGP 102 exiting surfaces 105 directions.
The utility model embodiment also provides a kind of display device, comprises the LGP 102 that the utility model embodiment provides.
The utility model embodiment provides a kind of LGP 102 and display device, incidence surface 103 at LGP 102 arranges a groove 106 that is used for holding the LED on the LED lamp bar 101, part beyond incidence surface 103 upper grooves 106 arranges reflecting part 107, and the number of degrees of the angle between the exiting surface 105 of reflecting part 107 and LGP 102 are more than or equal to 45 degree.After the light of LED lamp bar 101 emissions is injected LGP 102, enter the output optical zone of LGP 102 by the reflection of reflecting part 107, be that the light path that light enters before the output optical zone is to be reflected onto output optical zone after shining reflecting part 107, and LED lamp bar 101 places in the groove 106, therefore the border width of the module backlight that is made into is only determined by the width of buffer area, has realized the narrow frame of module backlight.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1. a LGP is characterized in that, comprising:
Be arranged on the groove that is used for holding the LED on the LED lamp bar on the LGP incidence surface;
Reflecting part is arranged on the part beyond the above groove of LGP incidence surface, and and the exiting surface of described LGP between the number of degrees of angle more than or equal to 45 degree, be used for the light of described LED lamp bar emission is reflexed to the output optical zone of described LGP.
2. LGP as claimed in claim 1 is characterized in that, the number of degrees of the angle between the exiting surface of described reflecting part and described LGP are spent more than or equal to 45, and less than 50 degree.
3. LGP as claimed in claim 1 is characterized in that, the angle between the exiting surface of described reflecting part and described LGP is 45 degree.
4. LGP as claimed in claim 1 is characterized in that, the part beyond the above groove of the incidence surface of described LGP is reflecting part.
5. LGP as claimed in claim 1 is characterized in that, described reflecting part attaches reflector plate or applies the reflecting layer.
6. LGP as claimed in claim 1 is characterized in that, described reflecting part is specially white reflection reflecting part or minute surface reflective portion.
7. LGP as claimed in claim 1 is characterized in that, the light of described LED lamp bar emission is vertical with the exiting surface of described LGP.
8. LGP as claimed in claim 7 is characterized in that, described groove perpendicular to the height of LGP exiting surface direction greater than 1/4th of described light guide plate, less than 1/2nd of described light guide plate.
9. LGP as claimed in claim 8 is characterized in that, described groove is 1/3rd of described light guide plate perpendicular to the height of LGP exiting surface direction.
10. a display device is characterized in that, comprises arbitrary described LGP as claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320208801 CN203215569U (en) | 2013-04-23 | 2013-04-23 | Light guide plate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320208801 CN203215569U (en) | 2013-04-23 | 2013-04-23 | Light guide plate and display device |
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| Publication Number | Publication Date |
|---|---|
| CN203215569U true CN203215569U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320208801 Expired - Fee Related CN203215569U (en) | 2013-04-23 | 2013-04-23 | Light guide plate and display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977752A (en) * | 2014-04-07 | 2015-10-14 | 三星显示有限公司 | Display apparatus |
| WO2018113001A1 (en) * | 2016-12-23 | 2018-06-28 | 武汉华星光电技术有限公司 | Light guide plate and liquid crystal module |
| CN111243458A (en) * | 2020-03-31 | 2020-06-05 | 深圳市泛海三江电子股份有限公司 | Light guide plate assembly, method and product of underground sign lamp |
| CN111399302A (en) * | 2018-12-13 | 2020-07-10 | 大众汽车有限公司 | Display device for a means of transportation |
| CN114077098A (en) * | 2021-11-18 | 2022-02-22 | 康佳集团股份有限公司 | Lateral backlight structure and display device |
-
2013
- 2013-04-23 CN CN 201320208801 patent/CN203215569U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977752A (en) * | 2014-04-07 | 2015-10-14 | 三星显示有限公司 | Display apparatus |
| WO2018113001A1 (en) * | 2016-12-23 | 2018-06-28 | 武汉华星光电技术有限公司 | Light guide plate and liquid crystal module |
| CN111399302A (en) * | 2018-12-13 | 2020-07-10 | 大众汽车有限公司 | Display device for a means of transportation |
| CN111243458A (en) * | 2020-03-31 | 2020-06-05 | 深圳市泛海三江电子股份有限公司 | Light guide plate assembly, method and product of underground sign lamp |
| CN114077098A (en) * | 2021-11-18 | 2022-02-22 | 康佳集团股份有限公司 | Lateral backlight structure and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180418 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Address before: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Co-patentee before: XIAMEN BOE ELECTRONICS Co.,Ltd. Patentee before: BOE TECHNOLOGY GROUP Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 |