CN212515284U - Side-in backlight module and display device - Google Patents
Side-in backlight module and display device Download PDFInfo
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- CN212515284U CN212515284U CN202020913475.0U CN202020913475U CN212515284U CN 212515284 U CN212515284 U CN 212515284U CN 202020913475 U CN202020913475 U CN 202020913475U CN 212515284 U CN212515284 U CN 212515284U
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- light guide
- backlight module
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Abstract
The application belongs to the technical field of display device, especially, relate to a side income formula backlight unit and display device, side income formula backlight unit includes: the light guide plate is provided with a light incident surface, and a groove is formed in the middle of the light incident surface in a concave mode; the lamp strip comprises a substrate and a plurality of lamp beads arranged on the substrate, the front surface of the substrate is fixed on the light incident surface of the light guide plate, the lamp beads are contained in the grooves, and the central axis of the lamp beads coincides with the central axis of the light guide plate. This application is owing to be fixed in the base plate of lamp strip the income plain noodles of light guide plate, and the base plate closes as an organic wholely with the light guide plate, and the lamp pearl can be accommodated to the recess that sets up in the middle of going into the plain noodles, has avoided the light leak phenomenon, moreover the central axis of lamp pearl with the coincidence of the central axis of light guide plate has basically eliminated the interval difference between each lamp pearl and the income plain noodles, can avoid the inhomogeneous problem of luminance well.
Description
Technical Field
The application belongs to the technical field of display equipment, and particularly relates to a side-in type backlight module and a display device.
Background
Displays, such as Liquid Crystal Displays (LCDs), are increasingly used due to their low power consumption, high image quality, small size and light weight. The backlight can be divided into a direct type backlight and a side type backlight according to the distribution position, the light bar is arranged on the side face of the light guide plate in the side type backlight, and light rays emitted by the light bar are emitted into the light guide plate from the side face. During the equipment, generally glue the lamp strip through the double faced adhesive tape and glue in the backplate, place the light guide plate in the backplate, leave the distance about 0.5mm between LED lamp pearl and the light guide plate presumably, adopt this kind of structure can lead to the light that LED lamp pearl sent can not get into the light guide plate completely, have the bad condition of production light leak, appear luminance inhomogeneous problem moreover easily.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a side income formula backlight unit, aim at solving the side income formula backlight unit among the prior art and easily produce the technical problem that the light leak is bad and luminance is inhomogeneous.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: a side-in backlight module comprises:
the light guide plate is provided with a light incident surface, and a groove is formed in the middle of the light incident surface in a concave mode;
the lamp strip comprises a substrate and a plurality of lamp beads arranged on the substrate, the front surface of the substrate is fixed on the light incident surface of the light guide plate, the lamp beads are contained in the grooves, and the central axis of the lamp beads coincides with the central axis of the light guide plate.
In one embodiment, the groove extends from one end to the other end of the light guide plate, and all the lamp beads are contained in the groove.
In one embodiment, a cross section of the groove parallel to the thickness direction of the light guide plate is rectangular.
In one embodiment, the grooves are provided in plurality, and the grooves correspond to the lamp beads one to one.
In one embodiment, the grooves are arranged on the light incident surface of the light guide plate at intervals in a straight line shape.
In one embodiment, the width of the substrate is greater than or equal to the thickness of the light guide plate.
In one embodiment, the bead is spaced from each of the walls of the groove.
In one embodiment, the substrate is bonded and fixed on the light incident surface of the light guide plate.
In one embodiment, the substrate is fixed to the light incident surface of the light guide plate by hot pressing.
Another object of the present application is to provide a display device, including display panel, backplate and above-mentioned side income formula backlight unit, display panel install in the light-emitting side of light guide plate, the light guide plate with the lamp strip set up in the backplate.
The beneficial effect of this application: the utility model provides a side income formula backlight unit is fixed in the income plain noodles of light guide plate with the base plate of lamp strip, and the base plate closes integratively with the light guide plate, and the lamp pearl can be accommodated to the recess that sets up in the middle of going into the plain noodles, has avoided the light leak phenomenon, the central axis of lamp pearl moreover with the coincidence of the central axis of light guide plate has basically eliminated the interval difference between each lamp pearl and the income plain noodles, can avoid the inhomogeneous problem of luminance well.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a perspective view of a side-entry backlight module according to an embodiment of the present disclosure;
FIG. 2 is a partial cross-sectional view of the side-entry backlight module shown in FIG. 1;
FIG. 3 is an exploded view of the side-entry backlight module shown in FIG. 1;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a perspective view of a display device provided in an embodiment of the present application;
FIG. 6 is a schematic plan view of the display device shown in FIG. 5;
FIG. 7 is a cross-sectional view taken along line BB of FIG. 6;
FIG. 8 is an enlarged view of portion C of FIG. 7;
fig. 9 is an exploded view of the display device shown in fig. 5.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
As shown in fig. 1-2, the side-entry backlight module 10 provided in the embodiment of the present disclosure includes a light guide plate 100 and a light bar 200. At least one side of the light guide plate 100 has a light incident surface, and a groove 110 is concavely formed in the middle of the light incident surface. The light bar 200 comprises a substrate 210 and a plurality of light beads 220 arranged on the substrate 210, the front surface of the substrate 210 is fixed on the light incident surface of the light guide plate 100, and the fixing mode can be but is not limited to clamping fit and bonding, and can also be that the substrate 210 and the light incident surface are fixed through a fastener or a clamping piece; the lamp beads 220 are accommodated in the grooves 110, the central axis of the lamp beads 220 coincides with the central axis of the light guide plate 100, and therefore the light leakage phenomenon can be avoided, the distance between the lamp beads 220 and the light incident surface of the light guide plate 100 is relatively fixed, the distance difference between the lamp beads 220 is basically eliminated, and the problem of uneven brightness can be well avoided.
The lateral backlight module 10 provided by this embodiment fixes the substrate 210 of the light bar 200 on the light incident surface of the light guide plate 100, the substrate 210 and the light guide plate 100 are integrated, the groove 110 arranged in the middle of the light incident surface can accommodate the lamp beads 220, thereby avoiding the light leakage phenomenon, and the central axis of the lamp beads 220 coincides with the central axis of the light guide plate 100, basically eliminating the distance difference between the lamp beads 220, and well avoiding the problem of uneven brightness.
In an embodiment, as shown in fig. 2 to 4, the grooves 110 extend from one end to the other end of the light guide plate 100, that is, only one groove 110 is provided on the light incident surface of the light guide plate 100, the grooves 110 are integrally elongated grooves, that is, the light incident surface is made into a concave shape, and all the lamp beads 220 are accommodated in the grooves 110. The length of the groove 110 may be set to be equal to the length of the light incident surface of the light guide plate 100, and the width of the groove 110 may be set to be less than or equal to half of the width of the light incident surface.
In an embodiment, as shown in fig. 2, a cross section of the groove 110 parallel to the thickness direction of the light guide plate 100 is rectangular, the lamp bead 220 may be an LED lamp bead 220 having a rectangular longitudinal section, and three surfaces corresponding to the LED lamp bead 220 are parallel to three groove walls corresponding to the groove 110 respectively.
In another embodiment, the grooves 110 are provided in plurality, and the grooves 110 and the lamp beads 220 are arranged in a one-to-one correspondence manner. The number of the grooves 110 is equal to that of the lamp beads 220, and the grooves and the lamp beads 220 are in one-to-one correspondence, and each lamp bead 220 correspondingly extends into the corresponding groove 110. The profile dimensions of each groove 110 may be configured to be the same or partially the same.
In an embodiment, the grooves 110 are arranged on the light incident surface of the light guide plate 100 at intervals in a line shape, and at this time, the beads 220 are also arranged on the front surface of the substrate 210 at intervals in a line shape. The lamp beads 220 can be uniformly distributed at intervals, so that the luminous uniformity of the product is better.
In an embodiment, as shown in fig. 2, the width of the substrate 210 is greater than or equal to the thickness of the light guide plate 100, so that the substrate 210 and the light guide plate 100 are combined together, the substrate 210 and the light incident surface of the light guide plate 100 have more contact areas, and the assembled structure is more stable. In operation, the bottom surface of the substrate 210 and the bottom surface of the light guide plate 100 are substantially flush, and then the substrate 210 is fixed on the light incident surface of the light guide plate 100.
In one embodiment, as shown in fig. 2, the lamp beads 220 are spaced apart from the walls of the groove 110, so that the lamp strip 200 can be conveniently installed, and the lamp beads 220 are not easily scratched or damaged when inserted into the groove 110; the distance between the groove wall of the groove 110 far from the substrate 210 and the lamp bead 220 can be set according to the emergent angle of the lamp bead 220.
In an embodiment, the substrate 210 is adhered and fixed on the light incident surface of the light guide plate 100, and specifically, may be adhered and fixed on the light incident surface of the light guide plate 100 by an industrial glue or a heat dissipation silica gel, and may be aligned by an external positioning device during operation, and the center line of each bead 220 may coincide with the center line of the light guide plate 100 when the substrate 210 is attached to the light guide plate 100.
In an embodiment, the substrate 210 is fixed to the light incident surface of the light guide plate 100 by hot pressing, and the substrate 210 is combined with the light guide plate 100 by hot pressing, so that a stable structure can be formed after fixing, and the substrate is not easy to fall off.
As shown in fig. 5 and 8, the display device 20 provided in the embodiment of the present application includes a display panel 300, a back plate 400 and the lateral backlight module 10 of the embodiment, wherein the display panel 300 is mounted on the light emitting side of the light guide plate 100, and the light guide plate 100 and the light bar 200 are accommodated in the back plate 400.
As shown in fig. 6 to 8, the display device 20 further includes a face frame 500, a middle frame 600, a reflective sheet 700, and an optical film 800. As shown in fig. 8 and 9, the display panel 300 is disposed on the middle frame 600 and opposite to one side of the optical film 800, the middle frame 600 is used for supporting the display panel 300, and a clamping groove is disposed at a position of the middle frame 600 corresponding to the optical film 800 for clamping and fixing the optical film 800. The face frame 500 is assembled with the middle frame 600 in a clamping manner, the periphery of the display panel 300 can be clamped between the middle frame 600 and the face frame 500, and the face frame 500 covers the display panel 300 and the side-in type backlight module 10, so that the whole display device 20 is fixed. The display panel 300, the optical film 800 and the reflective sheet 700 are parallel to each other, and the reflective sheet 700 is used for reflecting light transmitted to the bottom of the light guide plate 100 back into the light guide plate 100 to improve the brightness of the light guide plate 100; the optical film 800 is used to process the light guided out by the light guide plate 100 to form a surface light source with more uniform brightness, and the optical film 800 may be a composite film. The backboard 400 can be made of metal, such as sheet metal, to improve the heat dissipation effect of the product, and the middle frame 600 and the face frame 500 can be made of plastic parts to reduce the overall weight of the product.
The Display panel 300 may be a Liquid Crystal Display panel based on Liquid Crystal Display (LCD) technology, a Liquid Crystal Display panel based on Thin Film Transistor Liquid Crystal Display (TFT-LCD) technology, or a Quantum Dot Light Emitting diode (QLED) Display panel based on Quantum Dot Light Emitting Diodes (qd) technology.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A lateral backlight module is characterized in that: the method comprises the following steps:
the light guide plate is provided with a light incident surface, and a groove is formed in the middle of the light incident surface in a concave mode;
the lamp strip comprises a substrate and a plurality of lamp beads arranged on the substrate, the front surface of the substrate is fixed on the light incident surface of the light guide plate, the lamp beads are contained in the grooves, and the central axis of the lamp beads coincides with the central axis of the light guide plate.
2. The edge-type backlight module of claim 1, wherein: the groove extends from one end of the light guide plate to the other end, and all the lamp beads are contained in the groove.
3. The edge-type backlight module of claim 2, wherein: the section of the groove parallel to the thickness direction of the light guide plate is rectangular.
4. The edge-type backlight module of claim 1, wherein: the recess is provided with a plurality ofly, the recess with the lamp pearl one-to-one sets up.
5. The edge-type backlight module of claim 4, wherein: each groove is arranged on the light incident surface of the light guide plate at intervals in a straight line shape.
6. The edge-type backlight module of any one of claims 1 to 5, wherein: the width of the substrate is greater than or equal to the thickness of the light guide plate.
7. The edge-type backlight module of any one of claims 1 to 5, wherein: the lamp bead with all have the interval between each cell wall of recess.
8. The edge-type backlight module of any one of claims 1 to 5, wherein: the substrate is bonded and fixed on the light incident surface of the light guide plate.
9. The edge-type backlight module of any one of claims 1 to 5, wherein: the substrate is fixed on the light incident surface of the light guide plate through hot pressing.
10. A display device, characterized in that: the lateral entrance type backlight module comprises a display panel, a back plate and the lateral entrance type backlight module set forth in any one of claims 1-9, wherein the display panel is installed on the light emitting side of the light guide plate, and the light guide plate and the light bar are arranged in the back plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020913475.0U CN212515284U (en) | 2020-05-25 | 2020-05-25 | Side-in backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020913475.0U CN212515284U (en) | 2020-05-25 | 2020-05-25 | Side-in backlight module and display device |
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| CN212515284U true CN212515284U (en) | 2021-02-09 |
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| CN202020913475.0U Active CN212515284U (en) | 2020-05-25 | 2020-05-25 | Side-in backlight module and display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965296A (en) * | 2021-03-17 | 2021-06-15 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
| CN114355673A (en) * | 2022-01-10 | 2022-04-15 | 武汉华星光电技术有限公司 | Backlight module and display panel |
| CN114442375A (en) * | 2022-02-18 | 2022-05-06 | 南京京东方显示技术有限公司 | Backlight module and display device |
| CN114660699A (en) * | 2022-03-25 | 2022-06-24 | 江苏毅昌科技有限公司 | Assembly structure of ELED side-entry module |
| CN115981045A (en) * | 2023-03-23 | 2023-04-18 | 惠科股份有限公司 | Display device and electronic apparatus |
-
2020
- 2020-05-25 CN CN202020913475.0U patent/CN212515284U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965296A (en) * | 2021-03-17 | 2021-06-15 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
| CN114355673A (en) * | 2022-01-10 | 2022-04-15 | 武汉华星光电技术有限公司 | Backlight module and display panel |
| WO2023130513A1 (en) * | 2022-01-10 | 2023-07-13 | 武汉华星光电技术有限公司 | Backlight module and display panel |
| CN114442375A (en) * | 2022-02-18 | 2022-05-06 | 南京京东方显示技术有限公司 | Backlight module and display device |
| CN114442375B (en) * | 2022-02-18 | 2024-04-23 | 南京京东方显示技术有限公司 | Backlight module and display device |
| CN114660699A (en) * | 2022-03-25 | 2022-06-24 | 江苏毅昌科技有限公司 | Assembly structure of ELED side-entry module |
| CN115981045A (en) * | 2023-03-23 | 2023-04-18 | 惠科股份有限公司 | Display device and electronic apparatus |
| CN115981045B (en) * | 2023-03-23 | 2023-06-23 | 惠科股份有限公司 | Display device and electronic apparatus |
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