CN215416198U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN215416198U CN215416198U CN202121352646.8U CN202121352646U CN215416198U CN 215416198 U CN215416198 U CN 215416198U CN 202121352646 U CN202121352646 U CN 202121352646U CN 215416198 U CN215416198 U CN 215416198U
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- bottom plate
- plate
- backlight module
- supporting part
- display panel
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Abstract
The application provides a backlight module and a display device, wherein the backlight module comprises a back plate, the back plate comprises a bottom plate and a side plate, the side plate and the bottom plate are integrally formed, the side plate comprises a bending part, a first supporting part and a second supporting part, the first supporting part extends from the edge of the bottom plate to the front side of the bottom plate, the bending part extends from the edge of the first supporting part, which is far away from the bottom plate, along the direction which is not parallel to the first supporting part, the second supporting part extends from the edge of the bending part, which is far away from the first supporting part, to the back side of the bottom plate, the bending part is used for abutting against a display panel, and the second supporting part and the first supporting part are arranged at intervals; the display device comprises a display panel and a backlight module. The application provides a backlight unit has adopted the curb plate to replace the center, and the backplate can support display panel through the kink of curb plate, curb plate and bottom plate integrated into one piece, need not the equipment to solved and adopted the center to bear liquid crystal display panel equipment difficulty, and adopted the integrative backplate of glued membrane with high costs problem.
Description
Technical Field
The application belongs to the technical field of display devices, and particularly relates to a backlight module and a display device.
Background
At present, the display on the notebook computer can adopt the center to bear the weight of liquid crystal display panel at non-light source side usually, however, the center needs additional design, extra die sinking and also have the problem that the precision is difficult to control during the equipment, in order to solve the problem of center equipment difficulty, a backplate (integrated with the sizing block) that directly fixes the center on the edge in the manufacturing process has appeared on the market now, thereby the process of center and backplate equipment has been saved, but this integrative backplate yields of sizing block is relatively poor, the price is more expensive, the product delivery date is also longer, it is difficult to satisfy large-scale production requirement.
SUMMERY OF THE UTILITY MODEL
An object of the present application is to provide a backlight module and a display device, including but not limited to solving the technical problems that the assembly of a liquid crystal display panel is difficult by adopting a middle frame, and the cost of a back plate integrated with rubber and iron is high.
In order to achieve the above object, the present application provides a backlight module, including a back plate, the back plate including:
a base plate; and
the side plate, with bottom plate integrated into one piece for support display panel, the side plate includes kink, first supporting part and second supporting part, first supporting part certainly the edge of bottom plate to the front side of bottom plate is extended and is formed, the kink certainly keeping away from of first supporting part the edge of bottom plate extends along the direction that is not on a parallel with first supporting part forms, the second supporting part certainly keeping away from of kink the edge of first supporting part to the back side of bottom plate extends and forms, the kink is used for with display panel butt, the second supporting part with first supporting part interval sets up.
The application provides a backlight unit has used the edge from the bottom plate to extend earlier to the front side of bottom plate and buckle again and extend the curb plate that forms to the back side of bottom plate and replace the center, the backplate passes through the kink of curb plate and can support display panel, curb plate and bottom plate integrated into one piece, need not the equipment, make backplate delivery date short and the yields is secure, thereby solved effectively and adopted the center to bear liquid crystal display panel equipment difficulty, and adopt the integrative backplate of indisputable with high costs technical problem, be favorable to promoting display device's production efficiency and satisfy display device's large-scale production demand.
In one embodiment, the second support portion is located on a side of the first support portion near a middle of the base plate.
The side plates are formed by bending towards the inner side of the bottom plate, and the side plates and the bottom plate are surrounded to form a cylindrical structure, so that the support strength of the side plates is favorably ensured.
In one embodiment, an end surface of the second support portion adjacent to the bottom plate has a gap with the bottom plate.
The clearance can provide deformation space for the side plate, so that the side plate has certain deformation allowance, plays a certain buffering role on the display panel, and effectively prevents the display panel from being impacted by rigidity.
In one embodiment, the second support portion is located on a side of the first support portion away from the base plate.
Namely, the side plates are formed by bending towards the outer side of the bottom plate, so that the bottom plate can save materials, and the production cost of the back plate is reduced.
In one embodiment, a gap is formed between an end surface of the second support part far away from the bent part and a reference plane where a surface of the bottom plate far away from the bent part is located.
The clearance can provide deformation space for the side plate, so that the side plate has certain deformation allowance, plays a certain buffering role on the display panel, and effectively prevents the display panel from being impacted by rigidity.
In one embodiment, the bending portion is parallel to the bottom plate, the first supporting portion is perpendicular to the bottom plate, and the second supporting portion is parallel to the first supporting portion.
Thereby improving the supporting strength and stability of the side plate to the display panel.
In one embodiment, the backlight module further comprises:
the reflector plate is arranged on the front surface of the bottom plate;
the light guide plate is arranged on the surface, far away from the bottom plate, of the reflection sheet;
the first diffusion sheet is arranged on the surface, far away from the reflection sheet, of the light guide plate;
the first prism sheet is arranged on the surface of the first diffusion sheet far away from the light guide plate; and
and the light-emitting element is arranged on the front surface of the bottom plate and is positioned on the light incident side of the light guide plate.
The backlight module adopts a side-in light source, the light guide plate is used for reflecting light rays emitted by the light emitting elements to the side where the display panel is located, and the reflector plate is used for reflecting light rays emitted to the side where the bottom plate is located, so that the light energy loss is reduced, and the illumination of the display panel is improved; the first diffusion sheet is used for covering the dark shadows caused by the flaws on the light guide plate, so that the light rays emitted from the light guide plate are more uniformly transmitted to the first prism sheet through the first diffusion sheet; the first prism sheet can enhance the axial brightness of the backlight module.
In one embodiment, the backlight module further comprises:
and the second diffusion sheet is arranged on the surface of the first prism sheet far away from the first diffusion sheet.
The light emitted from the first prism sheet can be more uniformly irradiated onto the display panel through the second diffusion sheet.
In one embodiment, the backlight module further comprises:
and the second prism sheet is clamped between the first prism sheet and the second diffusion sheet.
The second prism sheet can compensate the light density of the first prism sheet, so that the range of the axial brightness of the backlight module is enlarged.
The application also provides a display device, including display panel and foretell backlight unit, backlight unit locates display panel's income light side, the kink of curb plate with display panel's back butt.
The application provides a display device has adopted backlight unit, extend earlier to the front side of bottom plate through the edge from the bottom plate and buckle again and extend the curb plate that forms to the back side of bottom plate and replace the center to the back side of bottom plate, make the backplate pass through the kink of curb plate and can support display panel, curb plate and bottom plate integrated into one piece, need not the equipment, make backplate delivery date short and the yields is secure, thereby solved effectively and adopted the center to bear the weight of liquid crystal display panel equipment difficulty, and adopt the integrative backplate of indisputable with high costs technical problem, be favorable to promoting display device's production efficiency and satisfy display device's large-scale production demand.
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 schematic partial cross-sectional view of a backlight module according to an embodiment of the present disclosure;
fig. 2 is a schematic partial cross-sectional view of a backlight module according to a second embodiment of the present application;
fig. 3 is a partial cross-sectional view of a light source side of a display device according to third and fourth embodiments of the present application.
Wherein, in the figures, the respective reference numerals:
1-display device, 10-backlight module, 20-display panel, 30-packaging sheet, 12-reflection sheet, 13-light guide plate, 14-first diffusion sheet, 15-first prism sheet, 16-light emitting element, 17-second diffusion, 18-second prism sheet, 111-bottom plate, 112-side plate, 1121-bending part, 1122-first supporting part, 1123-second supporting part.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly apparent, the present application is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that: when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations.
The term "plurality" means two or more unless specifically limited otherwise.
The first embodiment is as follows:
referring to fig. 1, the present embodiment provides a backlight module 10, which includes a back plate, the back plate includes a bottom plate 111 and a side plate 112; the side plate 112 is integrally formed with the bottom plate 111 for supporting the display panel 20, in this embodiment, the side plate 112 includes a bent portion 1121, a first support portion 1122, and a second support portion 1123, wherein the first support portion 1122 extends from an edge of the bottom plate 111 to a front side of the bottom plate 111 to form the bent portion 1121, the bent portion 1121 extends from an edge of the first support portion 1122 away from the bottom plate 111 in a direction not parallel to the first support portion 1122, the second support portion 1123 extends from an edge of the bent portion 1121 away from the first support portion 1122 to a back side of the bottom plate 111, and the bent portion 1121 is configured to abut against the display panel 20, and the second support portion 1123 is spaced apart from the first support portion 1122. It is understood that the "front side" refers to a side of the base plate 111 facing the display panel 20, and the "back side" refers to a side of the base plate 111 facing away from the display panel 20.
Specifically, the side plate 112 is raised toward the front side of the bottom plate 111, and its cross-sectional shape is "n" -shaped; when the display device 1 is assembled, the side plate 112 supports the display panel 20 instead of the middle frame; the side plate 112 is formed by extending the edge of the bottom plate 111 to the front side of the bottom plate 111, bending the edge of the bottom plate, and then extending the edge to the back side of the bottom plate 111, wherein the edges of the two opposite sides of the first supporting portion 1122 are connected to the edge of the bottom plate 111 and the edge of one side of the bending portion 1121, the second supporting portion 1123 is disposed at an interval from the first supporting portion 1122, and the edge of one side of the second supporting portion 1123 is connected to the edge of the other side of the bending portion 1121, that is, the bending portion 1121 is supported by the first supporting portion 1122 and the second supporting portion 1123 with a certain interval, so as to ensure the structural strength of the side plate 112 and improve the stability of the side plate 112 in supporting the display panel 20.
The backlight module 10 provided by this embodiment, the side plate 112 that is formed by extending from the edge of the bottom plate 111 to the front side of the bottom plate 111 and then bending the front side of the bottom plate 111 is adopted to replace the middle frame, the back plate can support the display panel 20 through the bending portion 1121 of the side plate 112, the side plate 112 and the bottom plate 111 are integrally formed, the assembly is not required, so that the delivery date of the back plate is short and the yield is guaranteed, thereby effectively solving the technical problems that the middle frame is difficult to assemble the liquid crystal display panel, and the integrated back plate made of rubber and iron has high cost, and being beneficial to improving the production efficiency of the display device 1 and meeting the requirement of large-scale production of the display device 1.
Further, in the present embodiment, the second support 1123 is located on a side of the first support 1122 near the middle of the bottom plate 111. That is, the side plate 112 is bent toward the inner side of the bottom plate 111, the supporting position of the second supporting portion 1123 falls on the bottom plate 111, the bottom plate 111 provides support for the second supporting portion 1123, and the side plate 112 and the bottom plate 111 surround to form a cylindrical structure, which is beneficial to ensuring the supporting strength of the side plate 112.
Further, in the present embodiment, the end surface of the second support portion 1123 near the bottom plate 111 has a gap with the bottom plate 111. That is, the second support 1123 is in non-contact connection with the bottom plate 111, and the second support 1123 is in clearance fit with the bottom plate 111. When the side plate 112 receives an external force transmitted by the display panel 20, the gap between the second supporting portion 1123 and the bottom plate 111 may provide a deformation space for the side plate 112, so that the side plate 112 has a certain deformation margin, and plays a certain role in buffering the display panel 20, thereby effectively preventing the display panel 20 from being rigidly impacted.
Further, in the present embodiment, the bent portion 1121 is parallel to the bottom plate 111, the first supporting portion 1122 is perpendicular to the bottom plate 111, and the second supporting portion 1123 is parallel to the first supporting portion 1122. That is, the first support portion 1122 extends from the edge of the bottom plate 111 to the front side of the bottom plate 111 in the direction perpendicular to the bottom plate 111 to the bent portion 1121, the bent portion 1121 extends from the edge of the first support portion 1122 away from the bottom plate 111 to the second support portion 1123 in the direction parallel to the bottom plate 111, and the second support portion 1123 extends from the edge of the bent portion 1121 away from the first support portion 1122 in the direction perpendicular to the bent portion 1121 to the bottom side of the bottom plate 111, so that the support strength and stability of the side plate 112 to the display panel 20 can be improved.
In addition, a junction of the first support portion 1122 and the bottom plate 111, or a junction of the first support portion 1122 and the bent portion 1121, or a junction of the first support portion 1122 and the second support portion 1123, or a junction of the first support portion 1122 and the bottom plate 111 and a junction of the first support portion 1122 and the bent portion 1121, or a junction of the first support portion 1122 and the bent portion 1121 and a junction of the bent portion 1121 and the second support portion 1123, or a junction of the first support portion 1122 and the bottom plate 111, a junction of the first support portion 1122 and the bent portion 1121, and a junction of the bent portion 1121 and the second support portion 1123 adopt a chamfered structure, thereby facilitating demolding of the molded back plate.
Further, in the present embodiment, the backlight module 10 further includes a reflective sheet 12, a light guide plate 13, a first diffusion sheet 14, a first prism sheet 15 and a light emitting element 16, wherein the reflective sheet 12 is disposed on the front surface of the bottom plate 111, it is understood that the front surface of the bottom plate 111 refers to the surface of the bottom plate 111 facing the display panel 20, the light guide plate 13 is disposed on the surface of the reflective sheet 12 away from the bottom plate 111, the first diffusion sheet 14 is disposed on the surface of the light guide plate 13 away from the reflective sheet 12, the first prism sheet 15 is disposed on the surface of the first diffusion sheet 14 away from the light guide plate 13, and the light emitting element 16 is disposed on the front surface of the bottom plate 111 and located on the light incident side of the light guide plate 13. That is, the backlight module 10 is a side-in type backlight module, the reflective sheet 12, the light guide plate 13, the first diffusion sheet 14 and the first prism sheet 15 are sequentially stacked and disposed on the front side of the bottom plate 111, the light emitting element 16 is located on one side edge of the bottom plate 111 different from the side plate 112, and the light emitting surface of the light emitting element 16 faces the end surface of the light incident side of the light guide plate 13, a part of the light emitted by the light emitting element 16 enters the light guide plate 13 and is refracted by the light guide plate 13 will be emitted toward the side where the first diffusion sheet 14 is located, another part will be emitted toward the side where the bottom plate 111 is located, and the light emitted toward the side where the bottom plate 111 is located will be reflected by the reflective sheet 12 and then propagate toward the side where the display panel 20 is located, so as to reduce the loss of light energy and improve the illuminance of the display panel 20; the first diffusion sheet 14 is used for covering the dark shadows caused by the defects on the light guide plate 13, so that the light emitted from the light guide plate 13 is more uniformly transmitted towards the first prism sheet 15 through the first diffusion sheet 14; when the light passing through the first diffusion sheet 14 passes through the first prism sheet 15, only the light within a certain angle range can be emitted through refraction, and the rest of the light is reflected by the edge of the first prism sheet 15 to the side of the bottom plate 111 because the refraction condition is not satisfied, and then emitted again by the reflection sheet 12, so that the light passing through the first diffusion sheet 14 is continuously recycled under the action of the first prism sheet 15, and the light originally diffused in all directions is controlled to be within 70 degrees after passing through the first prism sheet 15, thereby achieving the purpose of enhancing the axial brightness of the backlight module, and being beneficial to improving the illumination of the backlight module 10.
Further, in this embodiment, the backlight module 10 further includes a second diffusion sheet 17, and the second diffusion sheet 17 is disposed on a surface of the first prism sheet 15 far from the first diffusion sheet 14. So that the light emitted from the first prism sheet 15 is more uniformly irradiated onto the display panel 20 through the second diffusion sheet 17.
Further, in the present embodiment, the backlight module 10 further includes a second prism sheet 18, and the second prism sheet 18 is sandwiched between the first prism sheet 15 and the second diffusion sheet 17. That is, the first prism sheet 15, the second prism sheet 18 and the second diffusion sheet 17 are sequentially stacked, and the second prism sheet 18 can compensate for the light density of the first prism sheet 15 outside the 70 degree range, so that the axial brightness range of the backlight module is enlarged.
Example two:
referring to fig. 2, the backlight module provided in the present embodiment is substantially the same as that provided in the first embodiment, except that: the second support 1123 is located on a side of the first support 1122 away from the base plate 111. That is, the side plate 112 is bent toward the outer side of the bottom plate 111, and the supporting seat of the second supporting portion 1123 falls on the outer side of the bottom plate 111, so that the bottom plate 111 can save the material having the same area as the area of the projection region of the bent portion 1121 on the bottom plate 111, thereby reducing the production cost of the back plate.
Further, in the present embodiment, a gap is provided between an end surface of the second support 1123 away from the bent portion 1121 and a reference plane on which a surface of the bottom plate 111 away from the bent portion 1121 is located. That is, the second support 1123 is in clearance fit with the reference plane where the surface of the bottom plate 111 away from the bent portion 1121 is located. When the side plate 112 receives an external force transmitted by the display panel 20, the gap between the second supporting portion 1123 and the reference plane may provide a deformation space for the side plate 112, so that the side plate 112 has a certain deformation margin, and plays a certain role in buffering the display panel 20, thereby effectively preventing the display panel 20 from being rigidly impacted.
Example three:
referring to fig. 1 and fig. 3, the present embodiment provides a display device 1, including a display panel 20 and a backlight module 10 according to the first embodiment, wherein the backlight module 10 is disposed on the light incident side of the display panel 20, and the bending portion 1121 of the side plate 112 abuts against the back surface of the display panel 20. Specifically, the bending portion 1121 abuts on an edge of the non-display area of the display panel 20; when the display device 1 is packaged, the double-sided tape may be used to fix the display panel 20 and the bending portion 1121, and then the edge of the back plate and the edge of the display panel 20 are packaged together by the packaging sheet 30.
The display device 1 provided by the embodiment, the backlight module 10 is adopted, the side plate 112 formed by extending to the back side of the bottom plate 111 after extending to the front side of the bottom plate 111 from the edge of the bottom plate 111 and then bending is performed, so that the display panel 20 can be supported by the backboard through the bending part 1121 of the side plate 112, the side plate 112 and the bottom plate 111 are integrally formed, the assembly is not required, so that the backboard has a short delivery date and a guaranteed yield, thereby effectively solving the technical problems that the adoption of the middle frame for bearing the liquid crystal display panel is difficult to assemble, and the adoption of the integrated backboard made of rubber and iron has high cost, and being beneficial to improving the production efficiency of the display device 1 and meeting the large-scale production requirements of the display device 1.
Example four:
referring to fig. 2 and fig. 3, the display device provided in the present embodiment is substantially the same as that provided in the third embodiment, except that: the backlight module 10 adopts the back plate provided in the second embodiment, and the beneficial effects brought to the display device 1 are the same as those of the third embodiment, which are not described herein again.
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 backlight module comprises a back plate, and is characterized in that the back plate comprises:
a base plate; and
the side plate, with bottom plate integrated into one piece for support display panel, the side plate includes kink, first supporting part and second supporting part, first supporting part certainly the edge of bottom plate to the front side of bottom plate is extended and is formed, the kink certainly keeping away from of first supporting part the edge of bottom plate extends along the direction that is not on a parallel with first supporting part forms, the second supporting part certainly keeping away from of kink the edge of first supporting part to the back side of bottom plate extends and forms, the kink is used for with display panel butt, the second supporting part with first supporting part interval sets up.
2. The backlight module as claimed in claim 1, wherein the second support part is located at a side of the first support part near the middle of the chassis base.
3. The backlight module according to claim 2, wherein a gap is provided between an end surface of the second supporting portion adjacent to the bottom plate and the bottom plate.
4. The backlight module as claimed in claim 1, wherein the second supporting portion is located at a side of the first supporting portion away from the bottom plate.
5. The backlight module according to claim 4, wherein a gap is formed between an end surface of the second supporting portion away from the bent portion and a reference plane on which a surface of the bottom plate away from the bent portion is located.
6. The backlight module as claimed in claim 1, wherein the bent portion is parallel to the bottom plate, the first supporting portion is perpendicular to the bottom plate, and the second supporting portion is parallel to the first supporting portion.
7. The backlight module according to any one of claims 1 to 6, further comprising:
the reflector plate is arranged on the front surface of the bottom plate;
the light guide plate is arranged on the surface, far away from the bottom plate, of the reflection sheet;
the first diffusion sheet is arranged on the surface, far away from the reflection sheet, of the light guide plate;
the first prism sheet is arranged on the surface of the first diffusion sheet far away from the light guide plate; and
and the light-emitting element is arranged on the front surface of the bottom plate and is positioned on the light incident side of the light guide plate.
8. The backlight module of claim 7, further comprising:
and the second diffusion sheet is arranged on the surface of the first prism sheet far away from the first diffusion sheet.
9. The backlight module of claim 8, further comprising:
and the second prism sheet is clamped between the first prism sheet and the second diffusion sheet.
10. The display device, characterized in that, including the display panel and the backlight module of any claim 1 to 9, the backlight module is located the light incident side of the display panel, the kink of the side plate and the back of the display panel are butted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121352646.8U CN215416198U (en) | 2021-06-17 | 2021-06-17 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121352646.8U CN215416198U (en) | 2021-06-17 | 2021-06-17 | Backlight module and display device |
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| CN215416198U true CN215416198U (en) | 2022-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589587A (en) * | 2021-07-02 | 2021-11-02 | Tcl华星光电技术有限公司 | Backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589587A (en) * | 2021-07-02 | 2021-11-02 | Tcl华星光电技术有限公司 | Backlight module and display device |
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