CN209327745U - Backlight module, display device - Google Patents
Backlight module, display device Download PDFInfo
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- CN209327745U CN209327745U CN201920322157.4U CN201920322157U CN209327745U CN 209327745 U CN209327745 U CN 209327745U CN 201920322157 U CN201920322157 U CN 201920322157U CN 209327745 U CN209327745 U CN 209327745U
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- 239000000463 material Substances 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a kind of backlight module, display device, belongs to field of display technology, the brightness that can solve existing display panel is partially dark, the poor problem of the display effect of display panel.The backlight module of the utility model, comprising: light guide plate, light source；The light guide plate has the light-emitting surface being oppositely arranged and bottom surface, and the incidence surface being connected between light-emitting surface and bottom surface；Wherein, the incidence surface side for stating light guide plate has groove, and the light source is arranged in the groove, for shining to the direction away from the incidence surface.
Description
Technical Field
The utility model belongs to the technical field of show, concretely relates to backlight module, display device.
Background
The Liquid Crystal Display (LCD) comprises a Display panel formed by an array substrate and a color film substrate in an opposite box manner, and a backlight unit (BLU) which is arranged on the non-Display side of the Display panel and is used for providing a light source; wherein, the backlight includes: a Light Bar (Light Bar), a Light Guide Plate (LGP), a Back Plate (Back Cover) and a diaphragm.
At present, in order to realize the lightness and thinness of the display panel, a lateral backlight source is often adopted, that is, a light bar is arranged on the side surface of a light guide plate. Further, along with the requirement of the market on narrow-frame products, in the prior art, the light emitting surface of the light bar is attached to the light incident surface of the light guide plate in a pressing mode, so that the light bar is assembled with the light guide plate, and in the assembling process, a large gap exists between the light guide plate and the light bar due to the fact that the light guide plate is not assembled in a standard mode, so that the brightness of the display panel is dark, and the display effect of the display panel is affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide a backlight unit, display device who has preferred display effect.
Solve the utility model discloses technical scheme that technical problem adopted is a backlight unit, include: a light guide plate, a light source; the light guide plate is provided with a light emergent surface, a bottom surface and a light incident surface, wherein the light emergent surface and the bottom surface are arranged oppositely, and the light incident surface is connected between the light emergent surface and the bottom surface; wherein,
the light guide plate is provided with a groove on the light incident surface side, and the light source is arranged in the groove and used for emitting light in the direction away from the light incident surface.
Preferably, the method further comprises the following steps: and the support component is arranged in the groove, is connected with the light source and is used for supporting the light source.
Preferably, along the length direction of the groove, the groove is provided with a first side wall and a second side wall which are oppositely arranged; wherein,
the first side wall is provided with a first fixing component, and the second side wall is provided with a second fixing component; the first end of the supporting component is connected with the first fixing component, and the second end of the supporting component is connected with the second fixing component.
Preferably, the first fixing member and the second fixing member each include: the clamping device comprises a first supporting piece, a second supporting piece, a first elastic piece, a second elastic piece, a third supporting piece and a plurality of clamping pieces, wherein the first supporting piece and the second supporting piece are arranged oppositely;
the first supporting piece, the second supporting piece, the first elastic piece and the second elastic piece are connected with one another to form a closed graph, the third supporting piece is arranged in the closed graph, one end of the third supporting piece is connected with the first connecting end, and the other end of the third supporting piece is connected with the second connecting end; the first connecting end is a position where the first supporting piece is connected with the first elastic piece, and the second connecting end is a position where the second supporting piece is connected with the second elastic piece;
the first supporting piece of the first fixing component is connected with the first side wall, and the first supporting piece of the second fixing component is connected with the second side wall;
the clamping piece of the first fixing component is clamped and connected with the first end of the supporting component, and the clamping piece of the second fixing component is clamped and connected with the second end of the supporting component; the clamping pieces of the first fixing assembly and the clamping pieces of the second fixing assembly which are positioned on the same horizontal line form a group of clamping assemblies, and the supporting assembly is connected with different groups of clamping assemblies and used for changing the position of the light source in the groove.
Preferably, the first supporting member of the first fixing assembly and the first side wall are of an integrally formed structure, and the first supporting member of the second fixing assembly and the second side wall are of an integrally formed structure.
Preferably, the shape of the snap member comprises a triangle.
Preferably, the materials of the second supporting member, the third supporting member and the engaging member each include: metal material, zinc-aluminum alloy and polypropylene.
Preferably, the method further comprises the following steps: and the reflecting films are arranged on two opposite sides of the light source along the direction of the light-emitting surface pointing to the bottom surface.
Preferably, the material of the reflective film includes silver.
Preferably, the method further comprises the following steps: a flexible circuit board disposed between the light source and the support assembly.
Preferably, the material of the support member includes: metal material, zinc-aluminum alloy and polypropylene.
Preferably, the light source includes: an LED light bar.
Solve the technical problem the utility model discloses the technical scheme that technical problem adopted is a display device, including aforementioned arbitrary backlight unit.
Drawings
Fig. 1 is a plan view of a light guide plate according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a first fixing assembly according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a light source, a flexible circuit board, and a support assembly according to embodiment 1 of the present invention;
wherein the reference numerals are: 1. a light guide plate; 2. a lamp bead; 3. a support assembly; 4. a first fixed component; 41. a first support member; 42. a second support member; 43. a first elastic member; 44. a second elastic member; 45. a third support member; 46. a fastener; 5. a second fixed component; 6. a flexible circuit board.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
Preferably, in this embodiment, the light source includes: an LED light bar, as shown in FIGS. 1-3, is composed of a plurality of beads. Of course, the light source of the present embodiment is not limited to the LED light bar, and is not limited herein.
Example 1:
as shown in fig. 1-3, the present embodiment provides a backlight module, including: the LED light source comprises a light guide plate 1 and an LED light bar; the light guide plate 1 has a light emitting surface and a bottom surface opposite to each other, and a light incident surface connected between the light emitting surface and the bottom surface. That is to say, the backlight module provided in this embodiment is a side-in type backlight module, and particularly, the light incident surface side of the light guide plate 1 of this embodiment has a groove, and the LED light bar is disposed in the groove and is configured to emit light in a direction away from the light incident surface.
Therefore, in the backlight module of the embodiment, the LED light bar is directly arranged in the groove of the light guide plate 1, so that the step of assembling the LED light bar and the light guide plate 1 together in an extrusion manner in the prior art can be omitted, and the condition that the LED light bar is damaged due to mutual extrusion of the LED light bar and the light guide plate 1 is avoided; meanwhile, the situation that a large gap exists between the light guide plate 1 and the LED lamp strip due to the fact that the light guide plate 1 and the LED lamp strip are not assembled in a standard mode is avoided, and the display effect of the display panel is improved.
Preferably, the backlight module of this embodiment further includes a supporting component 3, which is disposed in the groove and connected to the LED light bar for supporting the LED light bar.
That is to say, in the present embodiment, the LED light bar is disposed on the supporting component 3 to be disposed in the groove of the light guide plate 1, and this structural arrangement enhances the stability of the LED light bar in the light guide plate 1.
For the purpose of clearly understanding the present embodiment, the following description will specifically describe the connection of the supporting member 3 to the groove.
Specifically, as shown in fig. 1, the groove of the light guide plate 1 has a first sidewall and a second sidewall oppositely disposed along the length direction of the groove; wherein, the first side wall is provided with a first fixing component 4, and the second side wall is provided with a second fixing component 5; the first end of the supporting component 3 is connected with the first fixing component 4, and the second end of the supporting component 3 is connected with the second fixing component 5.
That is, in the present embodiment, the supporting member 3 is disposed in the groove of the light guide plate 1 by being connected with the first fixing member 4 disposed on the first sidewall and the second fixing member 5 disposed on the second sidewall.
Further, as shown in fig. 2, the first fixing member 4 and the second fixing member 5 of the present embodiment each include: the first support member 41 and the second support member 42 are oppositely arranged, the first elastic member 43 and the second elastic member 44 are oppositely arranged, the third support member 45 is oppositely arranged, and the plurality of clamping members 46 are arranged on the second support member 42.
Specifically, the first supporting member 41, the second supporting member 42, the first elastic member 43, and the second elastic member 44 are connected to each other to form a closed figure, the third supporting member 45 is disposed in the closed figure, and one end of the third supporting member 45 is connected to the first connecting end, and the other end is connected to the second connecting end; wherein, the first connecting end is the position where the first supporting member 41 is connected with the first elastic member 43, and the second connecting end is the position where the second supporting member 42 is connected with the second elastic member 44; the first support 41 of the first fixing component 4 is connected with the first side wall, and the first support 41 of the second fixing component 5 is connected with the second side wall; the engaging member 46 of the first fixing member 4 is engaged with the first end of the supporting member 3, and the engaging member 46 of the second fixing member 5 is engaged with the second end of the supporting member 3; the engaging member 46 of the first fixing assembly 4 and the engaging member 46 of the second fixing assembly 5 on the same horizontal line form a set of engaging members, and the supporting assembly 3 is connected to different sets of engaging members for changing the position of the LED light bar in the groove.
It can be seen that the supporting member 3 of the present embodiment is disposed in the groove of the light guide plate 1 by connecting with the engaging member 46 of the first fixing member 4 and the engaging member 46 of the second fixing member 5. It should be noted here that, as shown in fig. 1, since the engaging member 46 of the first fixing member 4 and the engaging member 46 of the second fixing member 5 which are located on the same horizontal line can constitute one set of engaging members, and the supporting member 3 can be connected with different sets of engaging members, the position of the supporting member 3 in the groove can be changed, that is, the position of the LED light bar disposed on the supporting member 3 in the groove can also be changed. At this time, it should be noted that once the position of the LED light bar in the groove changes, the distance between the light-emitting surface of the LED light bar and the light-emitting surface of the display panel also changes, and accordingly, the a/P value (i.e., the ratio between the distance between the light-emitting surface of the LED light bar and the light-emitting surface of the display panel and the distance between any two adjacent lamp beads 2 in the LED light bar (i.e., the distance P shown in fig. 3) also changes, where when the a/P value is smaller, when the display panel displays, bright and dark fine stripes are easily formed on the display panel, and the fine stripes easily affect the display effect of the display panel. Therefore, in order to solve the foregoing problems, in this embodiment, the position of the supporting component 3 in the groove can be adjusted according to the display condition of the display panel, that is, the distance between the light-emitting surface of the LED light bar and the light-emitting surface of the display panel is adjusted, so as to adjust the value of the a/P, thereby improving the condition that the display panel has light and dark fine stripes, improving the display effect of the display panel, and enhancing the experience of the user using the display panel.
Specifically, the step of adjusting the position of the support member 3 in the groove will be specifically described below.
When the distance between the light-emitting surface of the LED lamp strip and the light-emitting surface of the display panel needs to be shortened, the supporting component 3 is only required to be pressed towards the inside of the groove, and the supporting component 3 is placed into the groove. Specifically, since the upper and lower sides of the first fixing element 4 and the second fixing element 5 are made of the first elastic element 43 and the second elastic element 44, respectively, when the supporting element 3 is pressed toward the inside of the groove, the pressure will make the first elastic element 43 and the second elastic element 44 in the first fixing element 4 bend inward, and make the first elastic element 43 and the second elastic element 44 in the second fixing element 5 bend inward, so as to drive the second supporting element 42 in the first fixing element 4 to move toward the first supporting element 41 and drive the second supporting element 42 in the second fixing element 5 to move toward the first supporting element 41, and at this time, the distance between the first fixing element 4 and the second fixing element 5 is increased, and the supporting element 3 can be pushed into the inside of the groove.
When the distance between the light-emitting surface of the LED lamp strip and the light-emitting surface of the display panel needs to be increased, the supporting component 3 is controlled to move towards the direction back from the inside of the groove. Specifically, a pressure is applied to the first elastic member 43 in the first fixing element 4 and the first elastic member 43 in the second fixing element 5, respectively, so that the first elastic member 43 in the first fixing element 4 and the first elastic member 43 in the second fixing element 5 are both bent inward. At this time, it is easily understood that the distance between the first fixing member 4 and the second fixing member 5 increases at a side of the first fixing member 4 and the second fixing member 5 close to the first elastic member 43 (i.e., at the open end of the recess), and at this time, the supporting member 3 can move in a direction away from the inside of the recess.
In the present embodiment, the engaging piece 46 preferably has a triangular shape. Specifically, as shown in fig. 2, the engaging member 46 of the present embodiment may be an inverted right triangle, wherein one right-angled side of the right triangle is fixedly connected to the second supporting member 42, and the other right-angled side is used for carrying the supporting member 3. Of course, the shape of the engaging member 46 of the present embodiment is not limited to a triangle, and will not be described in detail herein.
In order to simplify the manufacturing process of the backlight module in this embodiment and reduce the production cost, it is preferable that the first supporting member 41 and the first sidewall of the first fixing assembly 4 are integrally formed, and the first supporting member 41 and the second sidewall of the second fixing assembly 5 are integrally formed.
In this embodiment, preferably, the materials of the second supporting member 42, the third supporting member 45, and the engaging member 46 all include: metal material, zinc-aluminum alloy and polypropylene. These materials have certain hardness and toughness, so that when the second supporting member 42, the third supporting member 45, and the engaging member 46 are prepared by using these materials, they also have certain strength, thereby enhancing the strength of the light guide plate 1 of the present embodiment.
In order to avoid the light that LED lamp strip sent to follow 1 side of light guide plate and emit, reduce the utilization ratio of light, it is preferred, the backlight unit of this embodiment still includes: and the reflecting films are arranged on two opposite sides of the LED lamp strip along the direction from the light-emitting surface to the bottom surface.
In this embodiment, preferably, the material of the reflective film includes silver. Of course, the material of the reflective film in the present embodiment is not limited to the silver described above, and is not listed here.
Preferably, in this embodiment, the backlight module further includes: and the flexible circuit board 6 is arranged between the LED lamp strip and the supporting component 3.
Wherein, in this embodiment, preferably, the material of the supporting component 3 includes: metal material, zinc-aluminum alloy and polypropylene. Of course, the support member 3 in this embodiment may be made of other materials, which are not listed here.
In summary, since the LED light bar of the embodiment is directly disposed in the groove of the light guide plate 1, the step of assembling the LED light bar and the light guide plate 1 together by pressing in the prior art is omitted, and the condition that the LED light bar is damaged due to mutual pressing between the LED light bar and the light guide plate 1 is avoided; meanwhile, the situation that a large gap exists between the light guide plate 1 and the LED lamp strip due to the fact that the light guide plate 1 and the LED lamp strip are not assembled in a standard mode is avoided, and the display effect of the display panel is improved. In addition, as shown in fig. 1, in the embodiment, the LED light bar is mainly disposed in the groove of the light guide plate 1 through the supporting component 3, wherein two side walls of the groove are respectively disposed with the first fixing component 4 and the second fixing component 5, the first fixing component 4 and the second fixing component 5 are both disposed with a plurality of engaging members 46, and the engaging members 46 of the first fixing component 4 and the engaging members 46 of the second fixing component 5 on the same horizontal line form a group of engaging components, the supporting component 3 of the embodiment is connected with different groups of engaging components to achieve the position adjustability of the supporting component 3 in the groove, that is, the distance between the light emitting surface of the LED light bar and the light emitting surface of the display panel is adjustable, thereby achieving the adjustment of the a/P value, further improving the appearance of the display panel with fine stripes with alternate light and dark, and improving the display effect of the display panel, the experience of the user using the display panel is enhanced.
Example 2:
the present embodiment provides a display device, including the backlight module of embodiment 1.
Because the display device of the embodiment comprises the backlight module, the display device of the embodiment has a better display effect.
The display device of the present embodiment may be a liquid crystal display device or an electroluminescent display device, for example: the display device comprises any product or component with a display function, such as a liquid crystal panel, electronic paper, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (13)
1. A backlight module, comprising: a light guide plate, a light source; the light guide plate is provided with a light emergent surface, a bottom surface and a light incident surface, wherein the light emergent surface and the bottom surface are arranged oppositely, and the light incident surface is connected between the light emergent surface and the bottom surface; wherein,
the light guide plate is provided with a groove on the light incident surface side, and the light source is arranged in the groove and used for emitting light in the direction away from the light incident surface.
2. The backlight module of claim 1, further comprising: and the support component is arranged in the groove, is connected with the light source and is used for supporting the light source.
3. A backlight module according to claim 2, wherein the groove has a first sidewall and a second sidewall oppositely arranged along the length direction of the groove; wherein,
the first side wall is provided with a first fixing component, and the second side wall is provided with a second fixing component; the first end of the supporting component is connected with the first fixing component, and the second end of the supporting component is connected with the second fixing component.
4. A backlight module according to claim 3, wherein the first and second fixing members each comprise: the clamping device comprises a first supporting piece, a second supporting piece, a first elastic piece, a second elastic piece, a third supporting piece and a plurality of clamping pieces, wherein the first supporting piece and the second supporting piece are arranged oppositely;
the first supporting piece, the second supporting piece, the first elastic piece and the second elastic piece are connected with one another to form a closed graph, the third supporting piece is arranged in the closed graph, one end of the third supporting piece is connected with the first connecting end, and the other end of the third supporting piece is connected with the second connecting end; the first connecting end is a position where the first supporting piece is connected with the first elastic piece, and the second connecting end is a position where the second supporting piece is connected with the second elastic piece;
the first supporting piece of the first fixing component is connected with the first side wall, and the first supporting piece of the second fixing component is connected with the second side wall;
the clamping piece of the first fixing component is clamped and connected with the first end of the supporting component, and the clamping piece of the second fixing component is clamped and connected with the second end of the supporting component; the clamping pieces of the first fixing assembly and the clamping pieces of the second fixing assembly which are positioned on the same horizontal line form a group of clamping assemblies, and the supporting assembly is connected with different groups of clamping assemblies and used for changing the position of the light source in the groove.
5. The backlight module as claimed in claim 4, wherein the first supporting member of the first fixing member and the first sidewall are integrally formed, and the first supporting member of the second fixing member and the second sidewall are integrally formed.
6. The backlight module as claimed in claim 4, wherein the shape of the engaging member comprises a triangle.
7. The backlight module as claimed in claim 4, wherein the second supporting member, the third supporting member and the engaging member are made of materials including: metal material, zinc-aluminum alloy and polypropylene.
8. The backlight module of claim 1, further comprising: and the reflecting films are arranged on two opposite sides of the light source along the direction of the light-emitting surface pointing to the bottom surface.
9. A backlight module according to claim 8, wherein the material of the reflective film comprises silver.
10. The backlight module of claim 2, further comprising: a flexible circuit board disposed between the light source and the support assembly.
11. A backlight module according to claim 2, wherein the material of the support member comprises: metal material, zinc-aluminum alloy and polypropylene.
12. A backlight module according to claim 1, wherein the light source comprises: an LED light bar.
13. A display device comprising the backlight module of any one of claims 1-12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920322157.4U CN209327745U (en) | 2019-03-13 | 2019-03-13 | Backlight module, display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920322157.4U CN209327745U (en) | 2019-03-13 | 2019-03-13 | Backlight module, display device |
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| CN209327745U true CN209327745U (en) | 2019-08-30 |
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| CN201920322157.4U Active CN209327745U (en) | 2019-03-13 | 2019-03-13 | Backlight module, display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138496A (en) * | 2021-04-16 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Backlight module and display device |
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2019
- 2019-03-13 CN CN201920322157.4U patent/CN209327745U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138496A (en) * | 2021-04-16 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Backlight module and display device |
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