CN212060629U - Side-in backlight module and display device - Google Patents
Side-in backlight module and display device Download PDFInfo
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- CN212060629U CN212060629U CN201922207694.7U CN201922207694U CN212060629U CN 212060629 U CN212060629 U CN 212060629U CN 201922207694 U CN201922207694 U CN 201922207694U CN 212060629 U CN212060629 U CN 212060629U
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- guide plate
- light guide
- light
- mounting box
- backlight module
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Abstract
The utility model discloses a side income formula backlight module and display device, side income formula backlight module includes the light guide plate, the light guide plate has a play plain noodles, on the light guide plate with the one side of going out plain noodles mutual disposition is provided with a plurality of cylindrical pits. The utility model discloses a on the light guide plate with go out the non-income plain noodles of plain noodles mutual disposition and set up cylindrical concave point, it is right to be right through cylindrical concave point the light that the income plain noodles of light guide plate penetrated carries out abundant refraction, increases the diffusion of light guide plate to light, thereby promotes the homogeneity that the light guide plate jetted out light reaches the promotion the purpose of side income formula backlight unit's light-emitting homogeneity.
Description
Technical Field
The utility model relates to a display device technical field especially relates to a side income formula backlight module and display device.
Background
The existing side-in type backlight module mainly comprises a light source, a light guide plate and a touch screen, wherein the light source emits light to the light guide plate from the side surface of the light guide plate, and the light guide plate guides and transmits the light to provide the light source for the touch screen so as to enable the touch screen to emit light. However, the light guide plate in the prior art has poor light guide efficiency and low luminance of light emission, which causes the light emission of the backlight module to be not uniform enough, and thus the prior art still needs to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a side income formula backlight unit and display device, aim at promoting side income formula backlight unit's light-emitting homogeneity.
The utility model provides a technical scheme that technical problem adopted as follows:
a side-in backlight module comprises a light guide plate, wherein the light guide plate is provided with a light emergent surface, and a plurality of cylindrical concave points are arranged on one surface of the light guide plate, which is opposite to the light emergent surface.
The lateral backlight module is characterized in that the plurality of cylindrical concave points are uniformly arranged in an array.
The depth of the cylindrical concave point is 1/26-1/23 of the thickness of the light guide plate.
The lateral entrance type backlight module further comprises a panel and a touch screen which are sequentially arranged on one light emitting side of the light guide plate, a first through hole is formed in the panel, and light emitted by the light guide plate enters the touch screen through the first through hole.
The lateral backlight module is characterized in that an installation box is connected below the panel, and the light guide plate is positioned in the installation box; the mounting box is provided with at least one extension part, the extension part extends outwards from the side surface of the mounting box and extends towards one side away from the light emitting direction of the light guide plate, an accommodating space is formed between the extension part and the mounting box, and a light source is detachably connected in the accommodating space; the mounting box is provided with a through hole, and light emitted by the light source enters the light guide plate through the through hole.
The side-in backlight module, wherein the light source is in contact with the mounting box and the extension part respectively.
The side-in backlight module is characterized in that a second through hole is formed in one side, far away from the touch screen, of the mounting box, and the second through hole is communicated with the accommodating space through the through hole.
The side-in backlight module is characterized in that two reflecting sheets are arranged in the mounting box, the two reflecting sheets are respectively arranged opposite to two side faces, adjacent to the light emergent face, of the light guide plate, and the arrangement direction of the two reflecting sheets is perpendicular to the arrangement direction of the two light sources.
A display device comprises the lateral entrance type backlight module.
Has the advantages that: the utility model discloses a on the light guide plate with go out the non-income plain noodles of plain noodles mutual disposition and set up cylindrical concave point to it is right to go through cylindrical concave point the light that the income plain noodles of light guide plate penetrated advances abundant refraction, increases the diffusion of light guide plate to light, thereby promotes the homogeneity of light is jetted out to the light guide plate reaches the promotion the purpose of side income formula backlight unit's light-emitting homogeneity.
Drawings
Fig. 1 is a first view of the light guide plate according to the present invention;
FIG. 2 is a second view of the light guide plate according to the present invention;
fig. 3 is a schematic structural diagram of the side-in type backlight module according to the present invention;
fig. 4 is an exploded schematic view of the side-in backlight module of the present invention;
fig. 5 is a first view of the mounting box of the present invention;
FIG. 6 is an enlarged partial schematic view at A of FIG. 5;
fig. 7 is a second view of the mounting box of the present invention;
fig. 8 is a first view of the mounting box assembled with the light source in the present invention;
fig. 9 is a second view of the mounting box assembled with the light source in the present invention;
fig. 10 is a schematic view illustrating the distribution of the light guide plate and the reflective sheet according to the present invention;
fig. 11 is a schematic structural diagram of the light source of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a side-in type backlight module, as shown in figure 1, the side-in type backlight module comprises a light guide plate 1; the light guide plate 1 has a light emitting surface 11; since the light guide plate 1 is applied to the side-in type backlight module, as known in the prior art, the light incident surface 12 and the light incident surface 13 of the light guide plate 1 are both located at the side surfaces thereof, and the light incident surface 12 and the light incident surface 13 of the light guide plate 1 are adjacent to the light emitting surface 11. One side of the light guide plate 1 is provided with a plurality of cylindrical concave points 2, and the side where the plurality of cylindrical concave points 2 are located is a non-light-incident surface and is arranged opposite to the light-emitting surface 11.
As shown in fig. 1, the bottom of the cylindrical concave point 2 is arranged in a concave manner towards the light emitting surface 11; the utility model discloses a light guide plate 1 go up with play plain noodles 11 mutual disposition's non-income plain noodles sets up cylindrical concave point 2 to it is right to go into plain noodles 12 of light guide plate 1 and go into the plain noodles 13 and jet into the light and carry out abundant refraction, increase light guide plate 1 is to the diffusion of light, thereby promotes the homogeneity of light guide plate 1 jet out light reaches the promotion the purpose of side income formula backlight unit's light-emitting homogeneity.
The cylindrical concave points 2 are uniformly arranged in an array and are laid on the whole surface of the light guide plate 1, so that light rays incident from one incident surface of the light guide plate 1 can be guided to the other incident surface through the cylindrical concave points 2, the light guide plate 1 becomes a surface light source 8, and the light emitting uniformity of the side-entry backlight module is further improved.
The depth of the cylindrical concave points 2 is 1/26-1/23 of the thickness of the light guide plate 1; in one embodiment, the depth of the cylindrical pits 2 is 1/25 times the thickness of the light guide plate 1. The utility model discloses in set up into the degree of depth of cylindrical concave point 2 1/25 of 1 thickness of light guide plate, can guarantee that cylindrical concave point 2 can carry out abundant refraction to the light, make light guide plate 1 becomes area light source 8, can avoid the concave point too deeply and right again light guide plate 1's intensity produces adverse effect.
In a specific embodiment, the thickness of the light guide plate 1 is 2.5mm, the depth of the cylindrical concave points 2 is 0.1mm, and the distance between two adjacent cylindrical concave points 2 is 0.6 mm; the length of light guide plate 1 is 133.6mm, the width of light guide plate 1 is 17 mm.
As shown in fig. 3, the lateral backlight module further includes a panel 3 and a touch screen 4; the panel 3 and the touch screen 4 are both located on one side of the light guide plate 1 and are sequentially arranged along the light emitting direction of the light guide plate 1. As shown in fig. 4, a first through hole 31 is formed in the panel 3, the light guide plate 1 and the touch screen 4 are both connected to the panel 3, and the first through hole 31 is covered on both sides of the panel 3, so that light emitted from the light guide plate 1 can pass through the first through hole 31 to enter the touch screen 4, thereby lighting the touch screen 4; as shown in fig. 4, a mounting box 5 is connected below the panel 3, and the mounting box 5 is used for accommodating the light guide plate 1, so that the light guide plate 1 is positioned on the side of the panel 3 away from the touch screen 4; the light guide plate 1 is located in the mounting box 5, and an opening of the mounting box 5 faces the first through hole 31, so that the first through hole 31 communicates with the space in the mounting box 5.
The light guide plate 1 is a hexahedron, and the lateral backlight module is specifically described below by taking the touch screen 4, the panel 3, and the light guide plate 1 as an example in order from top to bottom:
the upper surface of the light guide plate 1 is the light emitting surface 11, and the left side surface and the right side surface of the light guide plate 1 are both light incident surfaces (12 and 13) of the light guide plate 1; cylindrical concave points 2 are disposed on the lower surface of the light guide plate 1 and are arranged to be depressed upward.
As shown in fig. 5 and 6, at least one extending portion 6 is disposed on the mounting box 5, and the extending portion 6 extends from the left side surface or the right side surface of the mounting box 5 to the outside of the mounting box 5 and faces away from the light emitting side of the light guide plate 1, that is, extends downward, so that an accommodating space 7 is formed between the extending portion 6 and the mounting box 5; the accommodating space 7 has an opening, and the opening direction of the accommodating space 7 is downward and opposite to the opening direction of the mounting box 5. A light source 8 is detachably connected in the accommodating space 7; as shown in fig. 6, a through hole 51 is disposed at a position corresponding to the extending portion 6 on the mounting box 5, and the space in the mounting box 5 is communicated with the accommodating space 7 through the through hole 51, so that the light emitted from the light source 8 can be incident on the light incident surface of the light guide plate 1 through the through hole 51.
The light incident surface 12 and the light incident surface 13 of the light guide plate 1 are respectively positioned on two sides of the light guide plate 1 along the length direction thereof; as shown in fig. 2, the front side and the back side of the light guide plate 1 are both provided with grooves 101, as shown in fig. 9, two ribs 52 are provided in the mounting box 5, and the ribs 52 are in one-to-one corresponding fit with the grooves 101. The convex rib 52 is matched with the groove 101, so that the light guide plate 1 is limited along the length direction of the light guide plate 1, and the light guide plate 1 is prevented from being installed in the installation box 5 and then being displaced.
The left side and the right side of the mounting box 5 are also provided with limiting hooks 53, the limiting hooks 53 are in contact with the light guide plate 1 and limit the light guide plate 1 along the thickness direction of the light guide plate 1, namely the up-down direction.
The mounting box 5 is detachably connected with the panel 3; after the light guide plate 1 is placed in the mounting box 5 and the mounting box 5 is mounted on the panel 3, the light source 8 may be inserted upward from the opening of the receiving space 7 and the light source 8 may be mounted on the side surface of the light guide plate 1. The utility model discloses in, the light source 8 with light guide plate 1 is in installation direction on the mounting box 5 is different for when changing or dismantling light source 8, need not with mounting box 5 is followed lift off on the panel 3.
In a specific embodiment, the light source 8 respectively contacts with the mounting box 5 and the extension portion 6, when the light source 8 is installed in the accommodating space 7, the side wall of the mounting box 5 and the inner side wall of the extension portion 6 both generate frictional resistance to the light source 8 and generate clamping force to the light source 8, so that the light source 8 is clamped and positioned in the accommodating space 7, and it is ensured that the light emitted by the light source 8 can pass through the through hole 51 and enter the light incident surface of the light guide plate 1.
Further, as shown in fig. 6, 7 and 8, a second through hole 54 is provided at a side of the mounting box 5 away from the touch screen 4, that is, at the bottom of the mounting box 5, and the second through hole 54 is communicated with the accommodating space 7 through the through hole 51. The second through hole 54 and the accommodating space 7 are respectively located at the left side and the right side of the second through hole 51, and the width of the through hole 51 is smaller than that of the second through hole 54, so that the second through hole 54, the through hole 51 and the accommodating space 7 are communicated to form an I shape. The perforation 51 can guarantee that the light that light source 8 sent incides the income plain noodles of light guide plate 1, can be right again light guide plate 1 with light source 8 carries on spacingly, and will light guide plate 1 with light source 8 keeps apart, makes light guide plate 1 with keep certain horizontal distance between the light source 8, thereby realizes the light-emitting homogeneity of side income formula backlight unit.
As shown in fig. 6, 7 and 8, the extension portion 6 is provided with a third through hole 61, and the third through hole 61 is disposed opposite to the through hole 51 and communicates with the accommodating space 7. The utility model discloses in because second through-hole 54 the perforation 51 accommodation space 7 with third through-hole 61 all communicates, works as mounting box 5 install extremely back on the panel 3, the staff can be according to the condition of light guide plate 1 light-emitting, use tools or finger pass second through-hole 54 perforation 51 with third through-hole 61, follow the left and right sides centre gripping of light source 8, thereby it is right light source 8 is in upper and lower position in accommodation space 7 is adjusted, so that the light-emitting of light guide plate 1 accords with the in-service use demand.
Two reflective sheets 9 are disposed in the mounting box 5, as shown in fig. 10, the two reflective sheets 9 are respectively disposed opposite to the front side and the back side of the light guide plate 1, and the arrangement direction of the two reflective sheets 9 is perpendicular to the arrangement direction of the two light sources 8. The reflection sheet 9 reflects light from a direction adjacent to the light incident surface of the light guide plate 1 to prevent the light from being emitted from the front and rear side surfaces of the light guide plate 1, thereby ensuring that the light incident on the light guide plate 1 from the light source 8 can be emitted from the light emitting surface 11 to the touch screen 4.
In addition, the reflection function may be realized by directly plating the front and rear side surfaces of the light guide plate 1 with a reflection film.
As shown in fig. 6, two first limiting ribs 71 are symmetrically arranged in the accommodating space 7 along the front-back direction; as shown in fig. 11, notches 81 corresponding to the first limiting ribs 71 are respectively disposed at the front end and the rear end of the light source 8, and the notches 81 are used for accommodating the first limiting ribs 71. The two first limiting ribs 71 form a clamping force for the light source 8 so as to clamp the light source 8, and accurate positioning of the light source 8 in the accommodating space 7 is realized.
As shown in fig. 11, a limiting groove 82 is formed in a surface of the light source 8, which is away from the touch screen 4, as shown in fig. 6, a hook 62 is arranged in the third through hole 61, as shown in fig. 8, the hook 62 is engaged with the limiting groove 82, so that the light source 8 is limited from below the light source 8, and the light source 8 is prevented from being separated downward from the accommodating space 7.
The utility model also provides a display device, it includes as above arbitrary one the side income formula backlight unit.
To sum up, the utility model provides a side income formula backlight module and display device, side income formula backlight module includes the light guide plate, the light guide plate has a play plain noodles, on the light guide plate with the one side of going out plain noodles mutual disposition is provided with a plurality of cylindrical pits. The utility model discloses a on the light guide plate with go out the non-income plain noodles of plain noodles mutual disposition and set up cylindrical concave point, it is right to be right through cylindrical concave point the light that the income plain noodles of light guide plate penetrated carries out abundant refraction, increases the diffusion of light guide plate to light, thereby promotes the homogeneity that the light guide plate jetted out light reaches the promotion the purpose of side income formula backlight unit's light-emitting homogeneity.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. A side-in backlight module comprises a light guide plate, wherein the light guide plate is provided with a light emergent surface, and a plurality of cylindrical concave points are arranged on one surface of the light guide plate, which is opposite to the light emergent surface; the light guide plate is characterized by further comprising a panel and a touch screen which are sequentially arranged on one light emitting side of the light guide plate, wherein a first through hole is formed in the panel, and light emitted by the light guide plate enters the touch screen through the first through hole.
2. The edge-type backlight module of claim 1, wherein the plurality of cylindrical pits are uniformly arranged in an array.
3. The edge-type backlight module of claim 1, wherein the depth of the cylindrical concave point is 1/26-1/23 of the thickness of the light guide plate.
4. The lateral backlight module of claim 1, wherein a mounting box is connected below the panel, and the light guide plate is located in the mounting box; the mounting box is provided with at least one extension part, the extension part extends outwards from the side surface of the mounting box and extends towards one side away from the light emitting direction of the light guide plate, an accommodating space is formed between the extension part and the mounting box, and a light source is detachably connected in the accommodating space; the mounting box is provided with a through hole, and light emitted by the light source enters the light guide plate through the through hole.
5. The edge-type backlight module of claim 4, wherein the light source is in contact with the mounting box and the extension portion, respectively.
6. The lateral backlight module of claim 4, wherein a side of the mounting box away from the touch screen is provided with a second through hole, and the second through hole is communicated with the accommodating space through the through hole.
7. The edge-type backlight module of claim 4, wherein two reflective sheets are disposed in the mounting box, the two reflective sheets are respectively disposed opposite to two sides of the light guide plate adjacent to the light exit surface, and the arrangement direction of the two reflective sheets is perpendicular to the arrangement direction of the two light sources.
8. A display device comprising the edge-type backlight module of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207694.7U CN212060629U (en) | 2019-12-10 | 2019-12-10 | Side-in backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207694.7U CN212060629U (en) | 2019-12-10 | 2019-12-10 | Side-in backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212060629U true CN212060629U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922207694.7U Active CN212060629U (en) | 2019-12-10 | 2019-12-10 | Side-in backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212060629U (en) |
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2019
- 2019-12-10 CN CN201922207694.7U patent/CN212060629U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.23, 136 Yuhai East Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Patentee after: Fu Zhi Yi Internet of vehicles (Ningbo) Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: FUERDA IOV (SHENZHEN) Co.,Ltd. |
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| CP03 | Change of name, title or address |