CN111323968A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN111323968A CN111323968A CN202010265880.0A CN202010265880A CN111323968A CN 111323968 A CN111323968 A CN 111323968A CN 202010265880 A CN202010265880 A CN 202010265880A CN 111323968 A CN111323968 A CN 111323968A
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- Prior art keywords
- lamp
- backlight module
- groove
- gap
- buffer device
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a backlight module and a display device. The backlight module comprises a back plate and a lamp panel arranged on the back plate, and the lamp panel comprises a plurality of lamp panel blocks; the lamp plate is characterized in that a buffer device is arranged in the gap of the lamp plate block and is divided into a transverse component and a longitudinal component, the transverse component is located in the row gap of the lamp plate, and the longitudinal component is located in the column gap of the lamp plate. According to the invention, the buffer device is arranged in the gap of the lamp panel block, so that the lamp panel block can be effectively prevented from being cracked due to interference caused by module deformation, and the lamp panel block can be accurately positioned and assembled.
Description
Technical Field
The invention relates to the technical field of display, in particular to a backlight module and a display device.
Background
With the rapid development of the liquid crystal display panel and backlight module industry, the mainstream trend of backlight design in the backlight module is also changing continuously. The use of mini LEDs has many advantages, such as reduced and controlled cost, smaller coupling distance and better color contrast, ultra-thin module structure design, etc. However, due to the limitation of the manufacturing process of large-sized display panels (usually larger than 65 inches), the backlight design using one lamp panel is very difficult and not conducive to the post-assembly.
In the large-size display panel in the prior art, the backlight design is made by designing the lamp panel into a plurality of small blocks for splicing and assembling, and gaps are inevitably formed between the lamp panel blocks due to the design and assembly gaps. When the module is in some extreme operating modes such as assembly, transport, reliability test (if fall), vehicle transportation, inevitably lead to the clearance between the lamp plate piece to diminish, very easily lead to lamp plate piece mutual interference and break. Therefore, it is necessary to improve this defect.
Disclosure of Invention
The embodiment of the invention provides a backlight module, which is used for solving the technical problem that in the large-size display panel in the prior art, a plurality of lamp plates are adopted for splicing and assembling in the backlight design, and because gaps exist among the assembled lamp plates, the gaps among the lamp plates are reduced when the module is carried, tested for reliability, transported and the like under certain extreme working conditions, so that the lamp plates are interfered with one another and are broken.
The embodiment of the invention provides a backlight module, which comprises a back plate and a lamp panel arranged on the back plate, wherein the lamp panel comprises a plurality of lamp panel blocks; the lamp plate is characterized in that a buffer device is arranged in the gap of the lamp plate block and is divided into a transverse component and a longitudinal component, the transverse component is located in the row gap of the lamp plate, and the longitudinal component is located in the column gap of the lamp plate.
Further, the material of the buffer device is an elastic material or a super-elastic material.
Further, the material of the buffer device is rubber or plastic.
Further, the inside of the buffer device is made of rigid material, and the outside of the buffer device is made of elastic material or super-elastic material.
Furthermore, the backboard is provided with a first groove corresponding to the area of the gap between the lamp panels, and the shape of the first groove corresponds to the shape of the buffer device.
Further, the depth of the first groove is smaller than the height of the buffer device.
Further, the depth of the first groove plus the height of the lamp panel is consistent with the height of the buffer device.
Furthermore, a second groove is formed in the area, corresponding to the gap of the lamp panel, of the back plate, and the width of the second groove is smaller than that of the buffer device; one side of the buffer device, which faces the second groove, is provided with a first bulge, and the width and the height of the first bulge are in one-to-one correspondence with the width and the depth of the second groove.
Furthermore, a second bulge is arranged in an area, corresponding to the gap of the lamp panel, on the back plate, the width of the second bulge is smaller than that of the buffer device, and the height of the second bulge is smaller than that of the buffer device; and a third groove is arranged on one side, facing the second bulge, of the buffer device, and the width and the depth of the third groove correspond to the width and the height of the second bulge one by one.
The embodiment of the invention provides a display device, which comprises the backlight module.
Has the advantages that: according to the backlight module provided by the embodiment of the invention, the buffer device is arranged in the gap of the lamp panel block, so that the lamp panel block can be effectively prevented from being cracked due to interference caused by module deformation, and the lamp panel block can be accurately positioned and assembled.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a basic structure of a backlight module according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a basic structure of a buffering device according to an embodiment of the present invention;
FIG. 3 is a side view of a backlight module according to a second embodiment of the present invention;
fig. 4 is a side view of a backlight module according to a third embodiment of the present invention;
fig. 5 is a side view of a backlight module according to a fourth embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a basic structure diagram of a backlight module according to a first embodiment of the present invention is shown, in which components of the backlight module and relative position relationships between the components can be seen intuitively, the backlight module includes a back panel 101 and a lamp panel 102 disposed on the back panel 101, the lamp panel 102 includes at least four lamp panels 1021 in matrix distribution, and a distance d between the lamp panels 1021 is in a range of 1 mm to 3 mm; a buffer device 103 is disposed in the gap of the lamp plate 1021, the buffer device 103 is divided into a transverse component 1031 and a longitudinal component 1032, the transverse component 1031 is located in the row gap of the lamp plate 102, and the longitudinal component 1032 is located in the column gap of the lamp plate 102.
It should be noted that there are a plurality of light panels 1021, and six are taken as an example in fig. 1 of this embodiment.
It should be noted that the length of the transverse component 1031 is greater than 0 and less than or equal to the length of the back plate 101, and the width of the transverse component 1031 is greater than 0 and less than or equal to the distance d between the lamp panels 1021; the length of longitudinal member 1032 is greater than 0 and is less than or equal to the width of backplate 101, the width of longitudinal member 1032 is greater than 0 and is less than or equal to interval d between lamp panel 1021.
In one embodiment, the material of the damping device 103 is an elastic material 104 or a super-elastic material. This embodiment is through set up buffer 103 in lamp plate 1021's the clearance, just buffer 103's material is elastic material 104 or super elastic material, and when some extreme operating mode lead to the module to warp, buffer 103 can be compressed, can guarantee can not take place to interfere between the lamp plate 1021, has also separated each lamp plate when having played the cushioning effect. When carrying out the module assembly time, fix earlier buffer, the reassembling lamp plate 1021, can reach more accurate location assembly this moment.
In one embodiment, the material of the damping device 103 is rubber or plastic.
Referring to fig. 2, a basic structure of a cushioning device according to an embodiment of the present invention is schematically shown, in which the cushioning device 103 is a composite structure, and the cushioning device 103 is made of a rigid material 105 at the inner portion and an elastic material 104 or a super-elastic material at the outer portion. The buffer that this embodiment provided's composite construction is an elastic shrinkage structure, this kind of composite construction can carry out self-adaptation's buffer protection according to the deflection that the module is different, the inside rigid material that is of its structure, can increase holistic hardness, under the condition of certain extreme operating mode, can maintain original position in the certain limit, and outside elastic material or hyperelastic material can play the cushioning effect again, combine the protection lamp plate that can be better, avoid the too big module damage that leads to of lamp plate displacement.
As shown in fig. 3, a side view of the backlight module according to the second embodiment of the present invention is shown, in which components of the backlight module and relative position relationships between the components can be seen visually, the backlight module includes a back plate 101 and a lamp panel 102 disposed on the back plate 101, the lamp panel 102 includes at least four lamp panels distributed in a matrix, and a distance between the lamp panels is 1 mm to 3 mm; the buffer device 103 is arranged in the gap of the lamp panel block, the buffer device 103 is divided into a transverse component and a longitudinal component, the transverse component is located in the row gap of the lamp panel 102, and the longitudinal component is located in the column gap of the lamp panel 102.
A first groove 106 is formed in an area of the back plate 101 corresponding to the gap of the lamp panel 102, and the shape of the first groove 106 corresponds to the shape of the buffer device 103. Specifically, the width w1 of the first groove 106 corresponds to the width w2 of the buffer device 103, and the length of the first groove 106 corresponds to the length of the buffer device 103. This embodiment is through set up first recess 106 on backplate 101, just the shape of first recess 106 with buffer 103's shape corresponds, promptly buffer 103 can with first recess 106 card with, not only can guarantee buffer 103's fixing can also make the temperature in lamp plate clearance conduct fast and dispel the heat on the backplate.
In one embodiment, the depth h1 of the first groove 106 is less than the height h2 of the buffer 103. Specifically, the depth h1 of the first groove 106 plus the height h3 of the lamp panel 102 is consistent with the height h2 of the buffer device 103. The buffer device 103 that this embodiment provided, its lower part can with recess 106 card and fixed, and its upper portion can separate each lamp plate piece, can not only effectively avoid interfering and breaking because of the lamp plate piece that the module warp leads to, can also increase the radiating efficiency and reduce the manufacturing cost of backplate strengthening rib.
As shown in fig. 4, a side view of a backlight module according to a third embodiment of the present invention is shown, in which components of the backlight module and relative position relationships between the components can be seen visually, the backlight module includes a back plate 101 and a lamp panel 102 disposed on the back plate 101, the lamp panel 102 includes at least four lamp panels distributed in a matrix, and a distance between the lamp panels is 1 mm to 3 mm; the buffer device 103 is arranged in the gap of the lamp panel block, the buffer device 103 is divided into a transverse component and a longitudinal component, the transverse component is located in the row gap of the lamp panel 102, and the longitudinal component is located in the column gap of the lamp panel 102.
In one embodiment, a second groove 107 is disposed on the back plate 101 in a region corresponding to a gap of the lamp panel 102, and a width w1 of the second groove 107 is smaller than a width w2 of the buffer device 103; the buffer device 103 is provided with a first protrusion 108 on a side facing the second groove 107, and the width and height of the first protrusion 108 are in one-to-one correspondence with the width w1 and the depth h1 of the second groove 107. In the backlight module provided by this embodiment, the second groove 107 is disposed on the back plate 101, and the width w1 of the second groove 107 is smaller than the width w2 of the buffer device 103, the first protrusion 108 is disposed on one side of the buffer device 103 facing the second groove 107, and the width and height of the first protrusion 108 are in one-to-one correspondence with the width w1 and the depth h1 of the second groove 107, that is, the first protrusion 108 can engage with the second groove 107, compared with the second embodiment (fig. 3), the contact area between the buffer device 103 and the back plate 101 is larger, the backlight module is firmer, and the heat dissipation efficiency is higher.
Wherein the depth h1 of the second groove 107 is smaller than the height h2 of the buffer 103. Specifically, the depth h1 of the second groove 107 plus the height h3 of the lamp panel 102 is consistent with the height h2 of the buffer device 103.
As shown in fig. 5, a side view of the backlight module according to the fourth embodiment of the present invention is that components of the backlight module and relative position relationships between the components can be seen visually, where the backlight module includes a back plate 101 and a lamp panel 102 disposed on the back plate 101, the lamp panel 102 includes at least four lamp panels distributed in a matrix, and a distance between the lamp panels is 1 mm to 3 mm; the buffer device 103 is arranged in the gap of the lamp panel block, the buffer device 103 is divided into a transverse component and a longitudinal component, the transverse component is located in the row gap of the lamp panel 102, and the longitudinal component is located in the column gap of the lamp panel 102.
In one embodiment, a second protrusion 109 is disposed on the back plate 101 in a region corresponding to the gap of the lamp panel 102, a width w1 of the second protrusion 109 is smaller than a width w2 of the buffering device 103, and a height h4 of the second protrusion 109 is smaller than a height h2 of the buffering device 103; the buffer device 103 is provided with a third groove 110 on a side facing the second protrusion 109, and the width and depth of the third groove 110 are in one-to-one correspondence with the width w1 and the height h4 of the second protrusion 109. This embodiment is through set up protruding 109 of second on backplate 101 set up third recess 110 on the buffer 103, protruding 109 of second can imbed in the third recess 110, can make buffer is in more firm of assembly on the backplate can more accurate assembly buffer, and can make the temperature in lamp plate clearance conduct fast and dispel the heat on the backplate.
Wherein, the height h2 of the buffer device 103 is consistent with the height h3 of the lamp panel 102.
The embodiment of the invention also provides a display device which comprises the backlight module. The display device provided by the embodiment of the invention can be as follows: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital camera, a navigator and the like.
In summary, according to the backlight module provided in the embodiments of the present invention, the buffer device is disposed in the gap between the lamp panels, so that the lamp panels can be effectively prevented from being cracked due to interference caused by module deformation, and the lamp panels can be accurately positioned and assembled, thereby solving the technical problem that the lamp panels are cracked due to mutual interference caused by the fact that the gap exists between the assembled lamp panels, when the module is used for carrying, reliability testing, transportation and other extreme conditions, the gap between the lamp panels is reduced due to the adoption of the backlight design of the large-size display panel in the prior art.
The backlight module and the display device provided by the embodiment of the invention are described in detail above. It should be understood that the exemplary embodiments described herein should be considered merely illustrative for facilitating understanding of the method of the present invention and its core ideas, and not restrictive.
Claims (10)
1. A backlight module is characterized by comprising a back plate and a lamp panel arranged on the back plate, wherein the lamp panel comprises a plurality of lamp panel blocks;
the lamp plate is characterized in that a buffer device is arranged in the gap of the lamp plate block and is divided into a transverse component and a longitudinal component, the transverse component is located in the row gap of the lamp plate, and the longitudinal component is located in the column gap of the lamp plate.
2. The backlight module as claimed in claim 1, wherein the buffer is made of an elastic material or a super-elastic material.
3. The backlight module as claimed in claim 2, wherein the buffer is made of rubber or plastic.
4. The backlight module of claim 1, wherein the buffer is made of rigid material at the inner part and elastic material or super elastic material at the outer part.
5. The backlight module as claimed in claim 1, wherein a first groove is formed in a region of the back plate corresponding to the gap between the lamp panels, and the shape of the first groove corresponds to the shape of the buffer device.
6. The backlight module as claimed in claim 5, wherein the depth of the first recess is less than the height of the buffer.
7. The backlight module as claimed in claim 6, wherein the depth of the first recess plus the height of the lamp panel is equal to the height of the buffer device.
8. The backlight module as claimed in claim 1, wherein a second groove is formed in a region of the back plate corresponding to the gap between the lamp panels, and the width of the second groove is smaller than that of the buffer device; one side of the buffer device, which faces the second groove, is provided with a first bulge, and the width and the height of the first bulge are in one-to-one correspondence with the width and the depth of the second groove.
9. The backlight module as claimed in claim 1, wherein a second protrusion is disposed on the back plate in a region corresponding to the gap between the lamp panels, the width of the second protrusion is smaller than the width of the buffer device, and the height of the second protrusion is smaller than the height of the buffer device; and a third groove is arranged on one side, facing the second bulge, of the buffer device, and the width and the depth of the third groove correspond to the width and the height of the second bulge one by one.
10. A display device comprising the backlight module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265880.0A CN111323968A (en) | 2020-04-07 | 2020-04-07 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265880.0A CN111323968A (en) | 2020-04-07 | 2020-04-07 | Backlight module and display device |
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| Publication Number | Publication Date |
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| CN111323968A true CN111323968A (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010265880.0A Pending CN111323968A (en) | 2020-04-07 | 2020-04-07 | Backlight module and display device |
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| CN (1) | CN111323968A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285974A (en) * | 2020-10-30 | 2021-01-29 | 惠州市华星光电技术有限公司 | Backlight module and display device |
| CN114927066A (en) * | 2022-06-17 | 2022-08-19 | 滁州惠科光电科技有限公司 | Backlight module and display device |
| WO2023124703A1 (en) * | 2021-12-29 | 2023-07-06 | 绵阳惠科光电科技有限公司 | Backlight module and display device |
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| US20180116073A1 (en) * | 2008-03-03 | 2018-04-26 | Manufacturing Resources International, Inc. | Constricted convection cooling for an electronic display |
| CN109387981A (en) * | 2018-12-20 | 2019-02-26 | 惠州市华星光电技术有限公司 | A kind of backlight module and liquid crystal display panel |
| CN110716351A (en) * | 2019-10-31 | 2020-01-21 | 厦门天马微电子有限公司 | Backlight module and display device |
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2020
- 2020-04-07 CN CN202010265880.0A patent/CN111323968A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180116073A1 (en) * | 2008-03-03 | 2018-04-26 | Manufacturing Resources International, Inc. | Constricted convection cooling for an electronic display |
| CN109387981A (en) * | 2018-12-20 | 2019-02-26 | 惠州市华星光电技术有限公司 | A kind of backlight module and liquid crystal display panel |
| CN110716351A (en) * | 2019-10-31 | 2020-01-21 | 厦门天马微电子有限公司 | Backlight module and display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285974A (en) * | 2020-10-30 | 2021-01-29 | 惠州市华星光电技术有限公司 | Backlight module and display device |
| CN112285974B (en) * | 2020-10-30 | 2021-12-03 | 惠州市华星光电技术有限公司 | Backlight module and display device |
| WO2023124703A1 (en) * | 2021-12-29 | 2023-07-06 | 绵阳惠科光电科技有限公司 | Backlight module and display device |
| CN114927066A (en) * | 2022-06-17 | 2022-08-19 | 滁州惠科光电科技有限公司 | Backlight module and display device |
| US11960114B2 (en) | 2022-06-17 | 2024-04-16 | Chuzhou Hkc Optoelectronics Technology Co., Ltd. | Backlight module and display device |
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Application publication date: 20200623 |
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