CN209784699U - Lamp strip, backlight unit and display module assembly - Google Patents
Lamp strip, backlight unit and display module assembly Download PDFInfo
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- CN209784699U CN209784699U CN201920514045.9U CN201920514045U CN209784699U CN 209784699 U CN209784699 U CN 209784699U CN 201920514045 U CN201920514045 U CN 201920514045U CN 209784699 U CN209784699 U CN 209784699U
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- base body
- light guide
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- 238000005452 bending Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 7
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000012788 optical film Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of liquid crystal display, a lamp strip, backlight unit and display module assembly are specifically disclosed. The light bar comprises a strip-shaped base body, a plurality of light emitting sources are arranged on one surface of the base body, a light shielding part is formed by bending one side of the base body in the width direction, and the light shielding part is arranged above at least each light emitting source. The display module comprises a back plate, a light guide plate and the light bar, wherein the back plate comprises a back plate bottom plate and a back plate side plate, the light guide plate is arranged on the back plate bottom plate, a light emitting source of the light bar is positioned between the back plate side plate and the light guide plate, the base body is connected with the back plate side plate, and the lower surface of the shading part is abutted to the upper surface of the light guide plate. The display module comprises the backlight module. The utility model discloses a lamp strip, backlight unit and display module assembly can improve backlight unit and display module assembly's leak protection optical property, and simplify backlight unit's processing.
Description
Technical Field
the utility model relates to a liquid crystal display technology field especially relates to a lamp strip, backlight unit and display module assembly.
Background
The display module is widely applied to the fields of computers, mobile phones, televisions and the like due to the advantages of clear and fine image display, no flicker, light weight, thin thickness, low power consumption and the like. Because the display panel of the display module does not have luminescence, the backlight module is needed to be adopted to add a luminous source for the display panel, so that the display panel achieves the display effect.
The backlight module generally adopts the LED lamp strip as a luminous source, when the LED lamp strip is applied to the lateral-entering type backlight module, because the LED light source is a lambertian-like luminous source, when the width of the light-entering side of the light guide plate is narrow, light can exceed the width of the light-entering surface of the light guide plate, so that part of the light can directly leak out of the upper part of the light guide plate without the action of the light guide plate, and the phenomenon is called as light leakage phenomenon, and can seriously affect the display effect of the display module. The prior art provides a backlight module with light leakage prevention and a liquid crystal display device, which include a light guide plate, a heat dissipation aluminum strip and an LED light bar fixed on the side of the heat dissipation aluminum strip, wherein the light incident side of the light guide plate is provided with a first inclined plane structure, and a second inclined plane structure opposite to the first inclined plane structure is arranged on the heat dissipation aluminum strip at a position close to the first inclined plane structure.
The backlight module that prior art provided through first inclined plane structure and second inclined plane structure, makes LED lamp strip can settle in the recess of heat dissipation aluminium strip, and the mixed light distance of change looks increase LED light avoids leading to the phenomenon of going into the light side and appearing the light leak because of the light guide plate goes into the light side width and butts. However, due to the arrangement mode, the light guide plate and the heat dissipation aluminum strip need to be structurally improved, the first inclined plane structure and the second inclined plane structure need to be designed in a matched mode, the complexity of processing the light guide plate and the heat dissipation aluminum strip is increased, when the model or the size of the backlight module is changed, the light guide plate and the heat dissipation plate need to be redesigned, the design and processing cost is increased, and the arrangement mode is not beneficial to the universal arrangement of components.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lamp strip improves the leak protection light performance of lamp strip.
another object of the utility model is to provide a backlight unit improves backlight unit's leak protection optical property, simplifies backlight unit's processing, reduces backlight unit's processing and design cost.
An object of the utility model is to provide a display module assembly improves display module assembly's leak protection optical property, simplifies display module assembly's processing, reduces display module assembly's processing and design cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A lamp strip comprises a long strip-shaped base body, wherein a plurality of light-emitting sources are arranged on one surface of the base body, a light-shielding part is formed by bending one side of the base body along the width direction of the base body, and the light-shielding part is arranged above at least each light-emitting source.
Further, the size of the light shielding portion in the direction perpendicular to the base is not less than twice the size of the light emitting source in the direction perpendicular to the base.
Furthermore, a reflecting layer is arranged on one surface of the light shielding part facing the light-emitting source.
Furthermore, a clamping portion is arranged on one surface, far away from the light emitting source, of the base body, and a clamping groove is formed between the clamping portion and the base body.
Furthermore, a plurality of shading parts are arranged at intervals along the length direction of the base body, and one clamping part is arranged between every two adjacent shading parts.
Further, the base member with joint portion integrated into one piece, just joint portion is by buckling the base member one side bending type that has the shading portion forms, just joint portion with shading portion dislocation set.
Further, the joint portion is L-shaped, the transverse edge of the L-shaped joint portion is connected with the base body, and the vertical edge of the L-shaped joint portion is parallel to the base body.
The utility model provides a backlight module, includes backplate and light guide plate, the backplate includes backplate bottom plate and backplate curb plate, the light guide plate sets up on the backplate bottom plate, still include as above the lamp strip, the light emitting source of lamp strip is located the backplate curb plate with between the light guide plate, just the base member with the backplate curb plate is connected, the lower surface of shading portion with the upper surface butt of light guide plate.
The utility model provides a backlight module, includes backplate and light guide plate, the backplate includes backplate bottom plate and backplate curb plate, the light guide plate sets up on the backplate bottom plate, still include as above the lamp strip, the lamp strip the light emitting source is located the backplate curb plate with between the light guide plate, the backplate curb plate with joint groove joint, the lower surface of shading portion with the upper surface butt of light guide plate.
A display module comprises the backlight module.
The beneficial effects of the utility model reside in that:
The utility model provides a lamp strip, through set up the shading portion above the light emitting source, when the lamp strip fortune is to backlight unit in, the light emitting source can be blockked and reflect by the shading portion towards one side of display screen is luminous, make the light emitting source give out light towards one side of display screen and can be refracted to the light guide plate that is located light emitting source one side, prevent that the luminescence of light emitting source from directly spilling from the light guide plate top without the light guide plate, improve lamp strip and backlight unit's leak protection optical property, guarantee backlight unit's light-emitting effect and guarantee display module unit's display quality. Simultaneously, because the light screen is formed by base member bending, make the processing convenient and fast of lamp strip, simplify the processing of the backlight unit of lamp strip and applied this lamp strip and display module assembly, reduce display module assembly and backlight module's processing cost.
The utility model provides a backlight unit through adopting foretell lamp strip, improves backlight unit's leak protection optical property, simplifies backlight unit's processing and equipment, guarantees backlight unit's light-emitting performance.
The utility model provides a display module assembly, through adopting foretell backlight unit, improve display module assembly's leak protection optical property, guarantee display module assembly's display quality.
Drawings
Fig. 1 is a schematic structural view of a light bar provided in an embodiment of the present invention;
fig. 2 is a left side view of a light bar provided by an embodiment of the present invention;
Fig. 3 is a cross-sectional view of a display module according to an embodiment of the present invention in a first direction;
Fig. 4 is a cross-sectional view of a display module according to an embodiment of the present invention in a second direction.
The figures are labeled as follows:
1-a light bar; 11-a substrate; 12-a light-shielding portion; 13-a clamping part; 14-a light emitting source; 15-clamping groove; 2-a back plate; 21-a backplane board; 22-back panel side panel; 3-middle frame; 31-middle frame side plate; 32-middle frame bottom plate; 4-outer frame; 41-outer frame bottom plate; 42-outer frame side plate; 5-a reflector plate; 6-a light guide plate; 7-an optical film set; 8-display screen.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is the utility model provides a structural schematic diagram of lamp strip 1, fig. 2 is the utility model provides a side view of lamp strip, as shown in fig. 1 and 2, this embodiment provides a lamp strip 1, can be applied to in the backlight unit and display module as backlight source. The light bar 1 comprises a strip-shaped base body 11, a plurality of light emitting sources 14 are arranged on one surface of the base body 11 at intervals along the length direction of the base body, a light shielding part 12 is formed by bending one side of the base body 11 along the width direction, and the light shielding part 12 is arranged above each light emitting source 14.
The lamp strip 1 that this embodiment provided, through set up shading portion 12 above light emitting source 14, when lamp strip 1 applied to backlight unit, light emitting source 14 can be blockked and reflect by shading portion 12 towards one side of display screen 8 is luminous, make light emitting source 14 give out light towards one side of display screen 8 and can be refracted to the light guide plate 6 that is located light emitting source 14 one side, prevent that light emitting source 14's is luminous not leaked from light guide plate 6 top directly through light guide plate 6, improve lamp strip 1 and backlight unit's leak protection optical property, guarantee backlight unit's light-emitting effect and guarantee display module unit's display quality. Meanwhile, the shading part 12 is formed by bending the base body 11, so that the lamp strip 1 can be conveniently and quickly processed, the lamp strip 1 and the backlight module and the display module applying the lamp strip 1 are simplified, and the processing cost of the display module and the backlight module is reduced.
Specifically, as shown in fig. 1, in the present embodiment, the base 11 is a rectangular strip structure, the base 11 is a flexible circuit board made of an aluminum substrate, and the flexible circuit board can be arbitrarily bent into a desired shape, and the aluminum substrate has a strong heat conduction performance, so that the heat dissipation rate of the light-emitting source 14 can be improved. In other embodiments, the substrate 11 may also be a flexible circuit board made of other materials, and the heat sink is attached to a surface of the substrate 11 away from the light source 14, so as to dissipate heat from the light source 14.
The base 11 is provided with a plurality of light emitting sources 14 at uniform intervals along the length direction, and the length of the base 11 and the number of the light emitting sources 14 can be specifically set according to the display requirements of the display module. In this embodiment, the light-emitting source 14 is an LED particle, and in other embodiments, the light-emitting source 14 may also be another light source structure capable of emitting light, such as an LED chip.
The substrate 11 is bent along one side of the width direction thereof to form a light shielding portion 12 and a clamping portion 13, and the bending directions of the light shielding portion 12 and the clamping portion 13 are opposite, so that the light shielding portion 12 extends along the side provided with the light emitting source 14, and the clamping portion 13 is arranged on the side of the substrate 11 away from the light emitting source 14.
In this embodiment, one light shielding portion 12 is disposed above each light emitting source 14, and one clamping portion 13 is disposed between two adjacent light shielding portions 12. However, in the present embodiment, the positions and the number of the light shielding portions 12 and the engaging portions 13 are not limited as long as the light shielding portions 12 are located above each of the light emitting sources 14 and the engaging portions 13 are provided on the base 11. For example, only one light shielding portion 12 may be provided along the length direction of the base 11, and each light emitting source 14 is located below the light shielding portion 12, in this case, only one engaging portion 13 needs to be provided at each of the two ends of the base 11 along the length direction; alternatively, a plurality of light shielding portions 12 may be arranged at intervals, one or more light emitting sources 14 are located below each light shielding portion 12, one locking portion 13 is located between two adjacent light shielding portions 12, and the number of the light shielding portions 12 and the number and the position of the locking portions 13 may be specifically set according to the requirement.
In the present embodiment, the light shielding portion 12 is used for shielding the light emitted from the light source 14 in the direction toward the light shielding portion 12, and in order to improve the light shielding effect, the dimension of the light shielding portion 12 in the direction perpendicular to the base 11 is not less than twice the dimension of the light source 14 in the direction perpendicular to the base 11.
In the present embodiment, in order to further improve the light shielding effect of the light shielding portion 12 on the light emitted from the light emitting source 14, a reflective layer is provided on the surface of the light shielding portion 12 facing the light emitting source 14. The reflective layer is made of a material capable of reflecting light, and may be an emitting film attached to the light shielding portion 12, or a reflective coating applied on a surface of the light shielding portion 12 facing the light emitting source 14. It is to be understood that the present embodiment is not particularly limited to the material of the reflective layer and the arrangement form thereof on the light shielding portion 12.
Joint portion 13 is used for with other structure joint, if when lamp strip 1 is applied to backlight unit in, joint portion 13 is used for the backplate curb plate 22 joint with backlight unit, thereby can avoid lamp strip 1 to adopt mode such as sticky and backplate curb plate 22 to bond the disassembling that causes difficult, the double faced adhesive tape clearance is unclean, lamp strip 1 warp and heat dispersion scheduling problem poor, improve lamp strip 1's the performance of dismantling, make things convenient for the equipment and the installation of lamp strip 1, be favorable to lamp strip 1's heat dissipation and used repeatedly.
In this embodiment, joint portion 13 is L type structure, and the horizontal limit that forms the L type is connected with base member 11 is perpendicular, and the perpendicular limit that forms the L type is parallel with base member 11, and this kind of setting can improve the inseparable type and the stability that the joint is connected. When lamp strip 1 was applied to backlight unit in, the interval between the perpendicular limit of L type and the base member 11 equals the width of backplate curb plate 22 to make backplate curb plate 22 can closely the block in the joint groove 15 of joint portion 13 and base member 11 formation. In other embodiments, the clamping portion 13 may have other shapes.
Fig. 3 is a cross-sectional view of the display module assembly provided by the embodiment of the present invention in the first direction, and fig. 4 is a cross-sectional view of the display module assembly provided by the embodiment of the present invention in the second direction, wherein the first direction is parallel to the second direction. As shown in fig. 3 and 4, the embodiment further provides a display module, which includes a backlight module, a middle frame 3, an outer frame 4 and a display screen 8, wherein the backlight module uses the light bar 1 as a backlight source.
Specifically, the backlight module includes a back plate 2, a reflective sheet 5, a light guide plate 6, an optical film group 7 and the light bar 1. Backplate 2 includes backplate bottom plate 21 and encloses perpendicularly and establish backplate curb plate 22 at backplate bottom plate 21 edge, and backplate bottom plate 21 and backplate curb plate 22 are formed with the chamber that holds reflector plate 5, light guide plate 6 and optical film group 7 and lamp strip 1, and reflector plate 5, light guide plate 6 and optical film group 7 from supreme stack setting in proper order down on backplate bottom plate 21, and lamp strip 1 sets up in one side of light guide plate 6.
The joint portion 13 of lamp strip 1 is used for with 22 joints of backplate curb plate, and backplate curb plate 22 stretches into joint groove 15 in, and the both sides face and the up end of backplate curb plate 22 respectively with the cell wall butt that joint groove 15 corresponds to realize the inseparable joint in backplate curb plate 22 and joint groove 15, improve the installation stability of lamp strip 1.
The light source 14 is located between the substrate 11 and the light guide plate 6, the light shielding part 12 is mounted above the light guide plate 6, and the lower surface of the light shielding part 12 abuts against the upper surface of the light guide plate 6, so that the light shielding part 12 can better shield the light emitted from the light source 14 in the direction towards the light shielding part 12, the light shielded by the light shielding part 12 can be totally reflected to the inside of the light guide plate 6, and is emitted from the light emitting surface of the light guide plate 6 after being uniformly mixed by the light guide plate 6, thereby preventing the light emitted from the light source 14 from directly leaking from the upper part of the light guide plate 6 without being reflected by the light guide plate 6, improving the light emitting performance of the backlight module, and improving.
in this embodiment, the middle frame 3 includes a middle frame bottom plate 32 and a middle frame side plate 31, the middle frame side plate 31 is parallel to the back plate side plate 22 and is located outside the back plate side plate 22, the middle frame bottom plate 32 is parallel to the back plate bottom plate 21 and is located above the back plate bottom plate 21, the lower surface of the middle frame bottom plate 32 abuts against the upper surface of the clamping portion 13, and the upper surface of the middle frame bottom plate 32 forms a mounting surface for mounting the display screen 8. In other embodiments, the middle frame 3 may also be located on the inner side of the back panel 2, and this arrangement manner may also be a conventional arrangement manner in the art, which is not described in detail in this embodiment.
In the present embodiment, the outer frame 4 includes an outer frame bottom plate 41 and an outer frame side plate 42, the outer frame side plate 42 is parallel to the middle frame side plate 31 and is located outside the middle frame side plate 31, and the outer frame bottom plate 41 is parallel to the middle frame bottom plate 32 and is located above the middle frame bottom plate 32. The display screen 8 is disposed between the middle frame bottom plate 32 and the outer frame bottom plate 41, and the lower end surface of the outer frame bottom plate 41 abuts against the upper surface of the display screen 8.
The arrangement of the back plate 2, the middle frame 3, the outer frame 4, the display screen 8, the optical film group 7 and the like can adopt the conventional arrangement in the field, and the detailed description is omitted in this embodiment.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A lamp strip comprises an elongated base body (11), wherein one surface of the base body (11) is provided with a plurality of light-emitting sources (14), the lamp strip is characterized in that the base body (11) is bent along one side of the width direction to form a light-shielding part (12), and the light-shielding part (12) is arranged above each light-emitting source (14).
2. a light bar according to claim 1, characterized in that the dimension of the shading part (12) in the direction perpendicular to the base body (11) is not less than twice the dimension of the light emitting source (14) in the direction perpendicular to the base body (11).
3. A light bar according to claim 1, characterized in that the side of the shading part (12) facing the light emitting source (14) is provided with a reflective layer.
4. A light bar as claimed in any one of claims 1 to 3, wherein a clamping portion (13) is provided on a surface of the base (11) away from the light source (14), and a clamping groove (15) is formed between the clamping portion (13) and the base (11).
5. A light bar as claimed in claim 4, wherein the shading parts (12) are arranged at intervals along the length direction of the base body (11), and one clamping part (13) is arranged between two adjacent shading parts (12).
6. A light bar as claimed in claim 4, wherein the base (11) and the engaging portion (13) are integrally formed, and the engaging portion (13) is formed by bending the side of the base (11) where the light shielding portion (12) is bent, and the engaging portion (13) and the light shielding portion (12) are arranged in a staggered manner.
7. A light bar as claimed in claim 4, wherein the clip portion (13) is L-shaped, the transverse edge forming the L-shape is connected with the base body (11), and the vertical edge forming the L-shape is parallel to the base body (11).
8. a backlight module comprising a back plate (2) and a light guide plate (6), said back plate (2) comprising a back plate bottom plate (21) and a back plate side plate (22), said light guide plate (6) being disposed on said back plate bottom plate (21), characterized in that it further comprises a light bar (1) according to any of claims 1-7, said light emitting source (14) of said light bar (1) being located between said back plate side plate (22) and said light guide plate (6), and said base body (11) being connected to said back plate side plate (22), and said lower surface of said light shielding portion (12) abutting against said upper surface of said light guide plate (6).
9. A backlight module comprises a back plate (2) and a light guide plate (6), wherein the back plate (2) comprises a back plate bottom plate (21) and a back plate side plate (22), the light guide plate (6) is arranged on the back plate bottom plate (21), the backlight module is characterized by further comprising the light bar (1) as claimed in claim 4, the light emitting source (14) of the light bar (1) is positioned between the back plate side plate (22) and the light guide plate (6), the back plate side plate (22) is clamped with the clamping groove (15), and the lower surface of the shading part (12) is abutted to the upper surface of the light guide plate (6).
10. A display module comprising the backlight module according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514045.9U CN209784699U (en) | 2019-04-16 | 2019-04-16 | Lamp strip, backlight unit and display module assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514045.9U CN209784699U (en) | 2019-04-16 | 2019-04-16 | Lamp strip, backlight unit and display module assembly |
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| Publication Number | Publication Date |
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| CN209784699U true CN209784699U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920514045.9U Active CN209784699U (en) | 2019-04-16 | 2019-04-16 | Lamp strip, backlight unit and display module assembly |
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| Country | Link |
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| CN (1) | CN209784699U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021218580A1 (en) * | 2020-04-30 | 2021-11-04 | 深圳市万普拉斯科技有限公司 | Backlight module and liquid crystal display |
| CN114660700A (en) * | 2022-03-28 | 2022-06-24 | 成都京东方光电科技有限公司 | Backlight module and display device |
| CN114879403A (en) * | 2022-05-23 | 2022-08-09 | 业成科技（成都）有限公司 | Display device manufacturing method and display device |
| US11846796B1 (en) | 2022-06-22 | 2023-12-19 | Chicony Power Technology Co., Ltd. | Backlight module |
-
2019
- 2019-04-16 CN CN201920514045.9U patent/CN209784699U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021218580A1 (en) * | 2020-04-30 | 2021-11-04 | 深圳市万普拉斯科技有限公司 | Backlight module and liquid crystal display |
| CN114660700A (en) * | 2022-03-28 | 2022-06-24 | 成都京东方光电科技有限公司 | Backlight module and display device |
| CN114660700B (en) * | 2022-03-28 | 2024-01-05 | 成都京东方光电科技有限公司 | Backlight module and display device |
| CN114879403A (en) * | 2022-05-23 | 2022-08-09 | 业成科技（成都）有限公司 | Display device manufacturing method and display device |
| CN114879403B (en) * | 2022-05-23 | 2023-06-27 | 业成科技（成都）有限公司 | Display device manufacturing method and display device |
| US11846796B1 (en) | 2022-06-22 | 2023-12-19 | Chicony Power Technology Co., Ltd. | Backlight module |
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Address after: 215301 No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301 No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee before: Infovision Optoelectronics (Kunshan) Co.,Ltd. |