CN209946438U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN209946438U CN209946438U CN201920748785.9U CN201920748785U CN209946438U CN 209946438 U CN209946438 U CN 209946438U CN 201920748785 U CN201920748785 U CN 201920748785U CN 209946438 U CN209946438 U CN 209946438U
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- light source
- backlight module
- guide plate
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Abstract
The utility model discloses a backlight module and display device. The backlight module comprises a light guide plate, a light source and a bracket; the support comprises a back plate and a bending part arranged around the periphery of the back plate, and an accommodating groove for installing the light guide plate is formed by the back plate and the bending part in a surrounding manner; the inner side surface of the bent part and the corresponding part of the light guide plate are provided with first grooves, and the light source is installed in the first grooves, so that the size of a frame of the display device on the side of the light source is reduced on the premise that the light mixing distance of the backlight module is unchanged.
Description
Technical Field
The utility model relates to a display panel technical field especially relates to a backlight module and display device.
Background
With the development of display panel technology and automobile technology, vehicle-mounted LTPS (Low Temperature polysilicon) display panels are increasingly applied to the automobile field due to the characteristic of narrow frames, and accordingly, the requirements for vehicle-mounted LTPS display devices are higher and higher.
In the prior art, the light source of the display device is fixed on the inner side surface of the bracket close to the light guide plate, so that enough space needs to be reserved between the bracket and the light guide plate to place the light source, the distance between the bracket and the light guide plate is large, and the frame of the display device on the light source side is wide.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a backlight module and display device can solve the problem of current display device at the frame broad of light source side.
The embodiment of the utility model provides a backlight module, which comprises a light guide plate, a light source and a bracket; the support comprises a back plate and a bending part arranged around the periphery of the back plate, and an accommodating groove for installing the light guide plate is formed by the back plate and the bending part in a surrounding manner;
the inner side surface of the bending part and the corresponding part of the light guide plate are provided with first grooves, and the light source is installed in the first grooves.
Furthermore, a second groove corresponding to the first groove is formed in the outer side surface of the bending part, and the first groove is communicated with the second groove.
Furthermore, the communication area of the first groove and the second groove is larger than or equal to the cross-sectional area of the light source in the direction parallel to the bending part, and the groove bottom area of the second groove is larger than the groove bottom area of the first groove.
In one embodiment, one end of the light source is inserted into the first groove through the second groove, and the other end of the light source is detachably connected with the bottom of the second groove.
Further, a first fixing adhesive tape is arranged at the bottom of the second groove, and the first fixing adhesive tape is a single-sided adhesive;
the adhesive surface of the first fixing adhesive tape faces the first groove and is simultaneously connected with the bottom of the second groove and the end face of the other end of the light source in an adhesive manner.
In another embodiment, the light source is inserted into the first recess through an opening of the first recess, and one end of the light source is detachably connected to the bottom of the first recess.
Further, a second fixing adhesive tape is arranged at the bottom of the first groove, and the second fixing adhesive tape is a double-sided adhesive tape;
and two sticking surfaces of the second fixing adhesive tape are respectively stuck and connected with the end surface of one end of the light source and the bottom of the first groove.
Further, the backlight module further comprises: a reflector sheet and an optical film sheet;
the reflector plate, the light guide plate and the optical diaphragm are sequentially arranged on the back plate in the accommodating groove.
The embodiment of the utility model also provides a display device, which comprises the backlight module and a display panel;
the light guide plate the display panel is arranged on the back plate in the accommodating groove in sequence.
Further, the display device further comprises a cover plate and a middle frame for bearing the display panel;
the middle frame is arranged in the accommodating groove and connected with the inner side face of the bent portion, the light guide plate, the middle frame and the display panel are sequentially arranged on the back plate in the accommodating groove, and the cover plate is arranged on one side, away from the back plate, of the support.
The utility model has the advantages that: the inner side surface of the bent part of the bracket is provided with a first groove corresponding to the light guide plate, and the light source is fixed in the first groove, so that no extra space is reserved on the inner side of the bent part, and the size of a frame of the display device on the side of the light source is reduced on the premise that the light mixing distance of the backlight module is not changed; the outer side surface of the bending part is provided with a second groove communicated with the first groove, and the communication area is larger than or equal to the cross-sectional area of the light source in the direction parallel to the bending part, so that the light source is directly taken out and replaced through the second groove when replaced, the display device is not required to be detached, and the replacement efficiency is improved.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a backlight module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for illustrating the embodiments of the present invention, and these embodiments can fully introduce the technical contents of the present invention to those skilled in the art, so that the technical contents of the present invention can be more clearly and easily understood. The present invention may, however, be embodied in many different forms of embodiments, and the scope of the present invention is not limited to the embodiments set forth herein.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the inventive concepts. Unless the context clearly dictates otherwise, expressions used in the singular form encompass expressions in the plural form. In the present specification, it is to be understood that terms such as "comprising," "having," and "containing" are intended to specify the presence of the features, integers, steps, acts, or combinations thereof disclosed in the specification, and are not intended to preclude the presence or addition of one or more other features, integers, steps, acts, or combinations thereof. Like reference symbols in the various drawings indicate like elements.
Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present invention.
As shown in fig. 1, the backlight module provided in this embodiment includes a bracket 1, a light source 2 and a light guide plate 4; the bracket 1 includes a back plate 11 and a bending portion 12 surrounding the back plate 11, and the back plate 11 and the bending portion 12 enclose an accommodating groove 13. Wherein, kink 12 is connected perpendicularly around backplate 11, and backplate 11 constitutes the tank bottom of holding tank 13, and kink 12 constitutes the cell wall of holding tank 13, and holding tank 13 is used for placing components such as light guide plate 4 to make support 1 protect components such as light guide plate 4 placed in holding tank 13.
The inner side surface of the bent portion 12 is provided with a first groove 14 corresponding to the light guide plate 4, wherein the inner side surface of the bent portion 12 refers to a surface of the bent portion 12 close to one side of the accommodating groove 13, and an opening direction of the first groove 14 faces the accommodating groove 13, so that the first groove 14 is communicated with the accommodating groove 13. The light source 2 is installed in the first groove 14, and a light emitting surface of the light source 2 is disposed near the accommodating groove 13, so that light emitted from the light source 2 enters the accommodating groove 13. Wherein the light source 2 may be an LED light source.
In one embodiment, the light source 2 is inserted into the first groove 14 through an opening of the first groove 14, and one end of the light source 2 is detachably connected to the bottom of the first groove 14. Specifically, one end of the light source 2 close to the light guide plate 4 is inserted into the first groove 14 through the opening of the first groove 14, and one end of the light source 2 away from the light guide plate 4 is detachably connected to the bottom of the first groove 14, that is, the light source 2 can be installed or removed through the opening of the first groove 14. For example, the light source 2 may be fixed to the bottom of the first groove 14 by a second fixing tape. Specifically, a second fixing adhesive tape 16 is arranged at the bottom of the first groove 14, and the second fixing adhesive tape 16 is a double-sided adhesive tape; two sticking surfaces of the second fixing tape 16 are respectively stuck and connected with one end surface of the light source 2 and the bottom of the first groove 14. Two opposite side surfaces of the fixing tape 16 are both adhesive surfaces, one adhesive surface of the fixing tape 16 is fixedly adhered to the bottom of the first groove 14, and the other adhesive surface of the fixing tape 16 is fixedly adhered to one side of the light source 2 far away from the light guide plate, so that the light source 2 is fixedly adhered to the first groove 14. It should be noted that the light source 2 may also be detachably connected to the bottom of the first groove 14 by other means, which is not limited in this respect.
Further, the first groove 14 may match with the size and shape of the light source 2, that is, the first groove 14 may just accommodate the light source 2, the length of the light source 2 in the direction perpendicular to the bending portion 12 is equal to the depth of the first groove 14, and the surface of the light source 2 on the side close to the accommodating groove 13 is flush with the inner side surface of the bending portion 12. The volume of the light source 2 may also be smaller than the volume of the first groove 14, i.e. the length of the light source 2 in the direction perpendicular to the bending part 12 is smaller than the depth of the first groove 14. The surface of the light source 2 near the accommodating groove 13 cannot exceed the inner side surface of the bent portion 12, so that the first groove 14 protects the light source 2.
Further, as shown in fig. 2, the outer side surface of the bending portion 12 is formed with a second groove 15 corresponding to the first groove 14, wherein the outer side surface of the bending portion 12 is a surface of the bending portion 12 away from the accommodating groove 13, and an opening direction of the second groove 15 is a direction away from the accommodating groove 13.
The first groove 14 corresponds to the second groove 15, and the first groove 14 is communicated with the second groove 15. The first groove 14 and the second groove 15 may be directly communicated, that is, the groove bottom of the first groove 14 and the groove bottom of the second groove 15 are located on the same plane, and the first groove 14 and the second groove 15 may also be communicated through a through hole, that is, a through hole is provided between the groove bottom of the first groove 14 and the groove bottom of the second groove 15.
The communication area of the first groove 14 and the second groove 15 is larger than or equal to the cross-sectional area of the light source 2 in the direction parallel to the bent portion 12. Wherein, the communication area refers to the cross-sectional area of the communication part of the first groove 14 and the second groove 15, and the position of the light source 2 in the first groove 14 corresponds to the position of the communication part.
Specifically, the groove bottom area of the second groove 15 is larger than the groove bottom area of the first groove 14. Wherein the whole groove bottom of the first groove 14 is communicated with the second groove 15, while the partial groove bottom of the second groove 15 corresponding to the first groove 14 is communicated with the first groove 14, and the rest part of the groove bottom is reserved.
In one embodiment, one end of the light source 2 is inserted into the first groove 14 through the second groove 15, and the other end of the light source 2 is detachably connected to the bottom of the second groove 15. Specifically, one end of the light source 2 close to the light guide plate 4 is disposed in the first groove 14, and one end of the light source 2 far from the light guide plate 4 is detachably connected to the bottom of the second groove 15, that is, the light source 2 can be installed in the first groove 14 or detached from the first groove 14 through the second groove 15. For example, the light source 2 can be fixedly connected to the groove bottom of the remaining portion of the second recess 15 by a first fixing tape. Specifically, a first fixing adhesive tape 17 is arranged at the bottom of the second groove 15, and the first fixing adhesive tape 17 is a single-sided adhesive; the adhesive surface of the first fixing tape 17 faces the first groove 14 and is simultaneously connected with the bottom of the second groove 15 and the other end surface of the light source 2 in an adhesive manner. The first groove 14 is communicated with the second groove 15, and the position of the light source 2 in the first groove 14 corresponds to the position of the communication position, so that the bottom of the second groove 15 is exposed out of the light source 2, and the fixing tape 17 is adhered to the remaining part of the bottom of the second groove 15 and the exposed light source 2, so as to adhere and fix the light source 2 in the first groove 14.
When changing light source 2, the partial tank bottom separation that is kept with fixed sticky tape 17 and second recess 15 through second recess 15 can take out the light source 2 of treating changing, and then paste new light source 2 on fixed sticky tape 17 earlier, rethread second recess 15 will paste new light source 2 cartridge that has fixed sticky tape 17 in first recess 14, paste fixed sticky tape 17 on the partial tank bottom that is kept at second recess 15 simultaneously, can realize changing of light source 2. It should be noted that the light source 2 may also be detachably connected to the bottom of the second groove 14 by other means, which is not limited in this respect.
In this embodiment, the communication area of the first groove 14 and the second groove 15 is greater than or equal to the cross-sectional area of the light source 2 in the direction parallel to the bending portion 12, so that when the light source 2 is replaced, the light source can be directly taken out and replaced through the second groove 15 without detaching the backlight module, thereby facilitating replacement by a user and improving replacement efficiency.
Further, as shown in fig. 1 or fig. 2, the back plate 11 in the accommodating groove 13 is further provided with a reflective sheet 3 and an optical film 5 in sequence. Specifically, reflector plate 3, light guide plate 4 and optics diaphragm 5 all locate holding tank 13 in, and reflector plate 3 is located backplate 11, and light guide plate 4 is located reflector plate 3, and optics diaphragm 5 is located light guide plate 4 to protect the subassembly such as reflector plate 3, light guide plate 4, optics diaphragm 5 that place in holding tank 13 through support 1. In addition, the light source 2 corresponds to the light guide plate 4, that is, the first groove 14 of the bending portion 12 corresponds to the light guide plate 4, and the light source 2 is fixed in the first groove 14, so that the distance between the bending portion 12 and the light guide plate 4 is shortened on the premise that the light mixing distance in the backlight module is not changed, and the frame size of the display device on the light source side is reduced.
As can be seen from the above, in the backlight module provided in this embodiment, the first groove corresponding to the light guide plate can be formed on the inner side surface of the bent portion of the bracket, and the light source is fixed in the first groove, so that no additional space needs to be reserved on the inner side of the bent portion, and thus the size of the frame of the display device on the light source side is reduced on the premise that the light mixing distance of the backlight module is not changed; the second groove communicated with the first groove is formed in the outer side face of the bending portion, the communication area is larger than or equal to the cross-sectional area of the light source in the direction parallel to the bending portion, so that the light source is directly taken out through the second groove and replaced when replaced, the display device does not need to be detached, replacement efficiency is improved, and market competitiveness of products is enhanced.
Fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present invention.
As shown in fig. 3, the display device provided in this embodiment includes a backlight module and a display panel 6, wherein the backlight module is the backlight module in the above embodiments and is not described in detail herein. The light guide plate 4 the display panel 6 sets gradually in backlight unit's holding tank 13, specifically, display panel 6 sets up on optical diaphragm 5, just display panel 6 keeps away from the surface of backplate 11 one side with kink 12 keeps away from the surface parallel and level of backplate 11 one side to protect display panel 6 through support 1.
Further, the display device further comprises a cover plate 7 and a middle frame 8; the middle frame 8 is arranged in the accommodating groove 13 and connected with the inner side surface of the bent part 12, and is used for bearing the display panel 6; light guide plate 4 the center 8 display panel 6 sets gradually on backplate 11 in holding tank 13, apron 7 sets up support 1 keeps away from one side of backplate 11 for pack holding tank 13 in the support 1, further protect components such as light guide plate 4, display panel 6 in the holding tank 13. Specifically, the cover plate 7 is disposed on a surface of the display panel 6 on a side away from the back plate 11 and a surface of the bent portion 12 on a side away from the back plate 11.
As can be seen from the above, in the display device provided in this embodiment, the first groove corresponding to the light guide plate can be formed on the inner side surface of the bent portion of the bracket, and the light source is fixed in the first groove, so that no additional space needs to be reserved on the inner side of the bent portion, and thus the size of the frame of the display device on the light source side is reduced on the premise that the light mixing distance of the backlight module is not changed; the second groove communicated with the first groove is formed in the outer side face of the bending portion, the communication area is larger than or equal to the cross-sectional area of the light source in the direction parallel to the bending portion, so that the light source is directly taken out through the second groove and replaced when replaced, the display device does not need to be detached, replacement efficiency is improved, and market competitiveness of products is enhanced.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (10)
1. A backlight module is characterized by comprising a light guide plate, a light source and a bracket; the support comprises a back plate and a bending part arranged around the periphery of the back plate, and an accommodating groove for installing the light guide plate is formed by the back plate and the bending part in a surrounding manner;
the inner side surface of the bending part and the corresponding part of the light guide plate are provided with first grooves, and the light source is installed in the first grooves.
2. The backlight module according to claim 1, wherein the outer side of the bending portion has a second groove corresponding to the first groove, and the first groove is communicated with the second groove.
3. The backlight module according to claim 2, wherein the area of the connection between the first groove and the second groove is greater than or equal to the cross-sectional area of the light source in the direction parallel to the bending portion, and the bottom area of the second groove is greater than the bottom area of the first groove.
4. The backlight module according to claim 2, wherein one end of the light source is inserted into the first recess through the second recess, and the other end of the light source is detachably connected to the bottom of the second recess.
5. The backlight module as claimed in claim 4, wherein a first fixing tape is disposed at the bottom of the second groove, and the first fixing tape is a single-sided adhesive;
the adhesive surface of the first fixing adhesive tape faces the first groove and is simultaneously connected with the bottom of the second groove and the end face of the other end of the light source in an adhesive manner.
6. The backlight module according to claim 1, wherein the light source is inserted into the first recess through the opening of the first recess, and one end of the light source is detachably connected to the bottom of the first recess.
7. The backlight module as claimed in claim 6, wherein a second fixing tape is disposed at the bottom of the first groove, and the second fixing tape is a double-sided tape;
and two sticking surfaces of the second fixing adhesive tape are respectively stuck and connected with the end surface of one end of the light source and the bottom of the first groove.
8. A backlight module according to claim 1, further comprising: a reflector sheet and an optical film sheet;
the reflector plate, the light guide plate and the optical diaphragm are sequentially arranged on the back plate in the accommodating groove.
9. A display device, comprising: a display panel and a backlight module according to any one of claims 1 to 8;
the light guide plate the display panel is arranged on the back plate in the accommodating groove in sequence.
10. The display device according to claim 9, further comprising a cover plate and a middle frame for carrying the display panel;
the middle frame is arranged in the accommodating groove and connected with the inner side face of the bent portion, the light guide plate, the middle frame and the display panel are sequentially arranged on the back plate in the accommodating groove, and the cover plate is arranged on one side, away from the back plate, of the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920748785.9U CN209946438U (en) | 2019-05-22 | 2019-05-22 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920748785.9U CN209946438U (en) | 2019-05-22 | 2019-05-22 | Backlight module and display device |
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| Publication Number | Publication Date |
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| CN209946438U true CN209946438U (en) | 2020-01-14 |
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| CN201920748785.9U Active CN209946438U (en) | 2019-05-22 | 2019-05-22 | Backlight module and display device |
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| CN (1) | CN209946438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109215A (en) * | 2019-05-22 | 2019-08-09 | 武汉华星光电技术有限公司 | A kind of backlight module and display device |
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2019
- 2019-05-22 CN CN201920748785.9U patent/CN209946438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109215A (en) * | 2019-05-22 | 2019-08-09 | 武汉华星光电技术有限公司 | A kind of backlight module and display device |
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