CN110908188A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN110908188A CN110908188A CN201911176100.9A CN201911176100A CN110908188A CN 110908188 A CN110908188 A CN 110908188A CN 201911176100 A CN201911176100 A CN 201911176100A CN 110908188 A CN110908188 A CN 110908188A
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- Prior art keywords
- backlight module
- lamp
- plate
- holes
- back plate
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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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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)
- Liquid Crystal (AREA)
Abstract
The invention discloses a backlight module and a display device, wherein the backlight module comprises: the back plate is provided with a plurality of through holes; the lamp panels are arranged on the first surface of the backboard; the supporting columns are fixed on the back plate through the through holes; wherein the through-hole is located the lamp plate is adjacent with another the backplate that the lamp plate concatenation department corresponds. According to the invention, through holes are arranged at the splicing positions of the lamp panels arranged on the back plate and the adjacent lamp panels, the support columns are positioned through the through holes to be attached and fixed on the back plate, and the diffusion plate is supported through the through holes and the height of the optical cavity is kept uniform. When the lamp panel is installed, the lamp panel is installed by positioning the reliable support column forming area, so that the positioning precision of the lamp panel is improved, and the assembly efficiency is improved.
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 display technology, liquid crystal display devices have advantages of light weight, thinness, small size, low power consumption, no radiation, relatively low manufacturing cost, and the like, and thus have been widely used in various information, communication, and consumer products due to their dominance in the current flat panel display field. Since the lcd panel of the lcd device does not have the light-emitting property, in order to adjust the brightness of the lcd device, a light source device, such as a backlight module, is provided for the lcd panel of the lcd device to provide a light beam with sufficient brightness and uniform distribution to the lcd panel.
At present, more and more light sources in the backlight module adopt LEDs (light emitting diodes) to replace the traditional lamp tubes, a single LED light bar usually comprises a plurality of LEDs, the plurality of LEDs are located on the same printed circuit board, and a connector located at one end of the printed circuit board provides power for all the LEDs on the whole LED light bar. In the prior art, when the connector is used for connection, the connecting wire electrically connected with the connector needs to pass through the back plate of the backlight module to be connected with the outside.
However, the liquid crystal display television technology is developed at present, the requirement for the picture quality is higher and higher, and the Mini-LED (small light emitting diode) backlight technology is a novel backlight technology, can provide local light control of super-partitions, greatly improves the dynamic contrast of the television, and accordingly improves the experience of consumers. However, the Mini-LED backlight is mostly formed by splicing lamp panels, which makes placing the support pillars difficult.
Disclosure of Invention
In order to solve the above problems, embodiments of the present invention provide a backlight module and a display device, which can effectively solve the problem that support columns cannot be reasonably placed when a lamp panel is adopted for splicing Mini-LED backlight at present.
According to an aspect of the present invention, an embodiment of the present invention provides a backlight module, including: the back plate is provided with a plurality of through holes; the lamp panels are arranged on the first surface of the backboard; the supporting columns are fixed on the back plate through the through holes; wherein the through-hole is located the lamp plate is adjacent with another the backplate that the lamp plate concatenation department corresponds.
Further, the backlight module further comprises: a plurality of reflector plates, each all attached each on the lamp plate the reflector plate.
Further, the backlight module further comprises: the diffusion plate is arranged on the support columns; and a diaphragm disposed on the diffusion plate.
Further, each of the support columns includes: the first cover body is attached to the second surface of the back plate; the fixing blocks are attached to the cover body, and each fixing block is arranged in the corresponding through hole; and a positioning column arranged on the retention block.
Furthermore, a plurality of first cover bodies are connected to form a second cover body, and the second cover body is in a strip shape.
Further, the shape of the retention block comprises a square, a rectangle or a triangle.
Furthermore, at least two through holes are formed at the splicing position of the long edge of each lamp panel and the long edge of the other lamp panel; each the broadside of lamp plate is equipped with at least one through-hole with another the broadside concatenation department of lamp plate.
Further, the spacing between the support columns corresponding to each column is equal.
Further, the spacing between the support columns corresponding to each row is equal.
According to another aspect of the present invention, an embodiment of the present invention further provides a display device, where the display device includes any one of the backlight modules described above.
The lamp plate supporting structure has the advantages that through holes are formed in the splicing positions of the lamp plates arranged on the back plate and the adjacent lamp plates, the supporting columns are positioned through the through holes to be attached and fixed to the back plate, and the diffusion plate is supported through the through holes to keep the height of the optical cavity uniform. The support column is positioned through the positioning hole of the back plate and is fixed on the back plate through attachment (or screw locking). Consequently, when the installation lamp plate, can be according to the positioning region installation lamp plate that the support column formed to promote the positioning accuracy of lamp plate, improve the packaging efficiency. In addition, a plurality of supporting columns can also form a whole, and the supporting columns are more stable compared with a single supporting column, so that the risk that the supporting columns are separated from the back plate is reduced.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the invention.
Figure 2 is a front view of a support post according to the embodiment of the present invention.
Figure 3 is a side view of a support post provided in accordance with an embodiment of the present invention.
Fig. 4 is a schematic diagram of a distribution structure of through holes on a backplane according to the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a support column set according to another embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present 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, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defined as "first", "second" may explicitly or implicitly include one or more of those features, in the description of the invention "plurality" means two or more unless explicitly defined otherwise.
As shown in fig. 1, a backlight module 20 according to an embodiment of the present invention is provided. The backlight module 20 includes: a back plate 1, a plurality of lamp panels 2, a plurality of supporting pillars 10, a plurality of reflectors 3, a diffuser plate 4 and a diaphragm 5.
Be equipped with a plurality of through-holes 6 on the backplate, a plurality of lamp plates 2 set up in on the first face of backplate 1. Each of the supporting posts 10 is fixed on the back plate 1 through the plurality of through holes 6. Wherein through-hole 6 is located lamp plate 2 is adjacent with another lamp plate 2 concatenation department corresponds on the backplate 1.
Wherein each all attached each reflector plate 3 on each lamp plate 2. The diffuser plate 4 is disposed on the plurality of supporting columns 10, and the plurality of supporting columns 10 support the diffuser plate and maintain the light cavity height to be uniform, so that the brightness of the display panel is uniform. The membrane 5 is disposed on the diffusion plate 4.
Fig. 2 is a front view of a support column 10 according to an embodiment of the present invention. Each of the support columns 10 includes: a first cover 11, a retaining block 12 and a positioning column 13.
The first cover 11 is attached to the second surface of the back plate 1. The fixing blocks 12 are attached to the cover body 11, and each fixing block 12 is arranged in the corresponding through hole 6. The positioning column 13 is disposed on the positioning block 12.
In the embodiment of the present invention, the shape of the retention block 12 is square, but is not limited thereto, and in other embodiments, the shape of the retention block 12 may also be rectangular or triangular, etc. The shape of the positioning block 12 is used to fix the orientation of the positioning post 13.
With reference to fig. 3, the positioning column 13 is flat, so that the gap position of the splicing part between the lamp panel 2 and the lamp panel 2 can be utilized, and the positioning column 13 is placed along the direction of the gap, so that the position of the lamp panel 2 is quickly positioned, and the lamp panel 2 is convenient to install.
As shown in fig. 4, in the embodiment of the present invention, two through holes 6 are disposed at a joint of a long side of each lamp panel 2 and a long side of another adjacent lamp panel 2. Each broadside of lamp plate 2 is equipped with a through-hole 6 with another adjacent broadside concatenation department of lamp plate 2, but not limited to this. In other embodiments, each the long limit of lamp plate 2 is adjacent with another the long limit concatenation department of lamp plate 2 is equipped with three through-hole 6, each the broadside of lamp plate is adjacent with another the broadside concatenation department of lamp plate is equipped with two through-holes 6.
The spacing between the supporting columns 10 corresponding to each column is equal, and the spacing between the supporting columns 10 corresponding to each row is equal.
As shown in fig. 5, a support column set according to another embodiment of the present invention is provided, wherein the support column set includes a plurality of support columns 10, such design can increase the assembly efficiency of the support columns, and the support column set is more stable than a single support column 10, thereby reducing the risk of the support column 10 separating from the backboard. Wherein each of the support posts 10 comprises: a first cover 11, a retaining block 12 and a positioning column 13.
The first cover 11 is attached to the second surface of the back plate 1. The fixing blocks 12 are attached to the cover body 11, and each fixing block 12 is arranged in the corresponding through hole 6. The positioning column 13 is disposed on the positioning block 12.
In the embodiment of the present invention, the shape of the retention block 12 is square, but is not limited thereto, and in other embodiments, the shape of the retention block 12 may also be rectangular or triangular, etc. The shape of the positioning block 12 is used to fix the orientation of the positioning post 13.
With reference to fig. 3, the positioning column 13 is flat, so that the gap position of the splicing part between the lamp panel 2 and the lamp panel 2 can be utilized, and the positioning column 13 is placed along the direction of the gap, so that the position of the lamp panel 2 is quickly positioned, and the lamp panel 2 is convenient to install.
The lamp plate supporting structure has the advantages that through holes are formed in the splicing positions of the lamp plates arranged on the back plate and the adjacent lamp plates, the supporting columns are positioned through the through holes to be attached and fixed to the back plate, and the diffusion plate is supported through the through holes to keep the height of the optical cavity uniform. The support column is positioned through the positioning hole of the back plate and is fixed on the back plate through attachment (or screw locking). Consequently, when the installation lamp plate, can be according to the positioning region installation lamp plate that the support column formed to promote the positioning accuracy of lamp plate, improve the packaging efficiency. In addition, a plurality of supporting columns can also form a whole, and the supporting columns are more stable compared with a single supporting column, so that the risk that the supporting columns are separated from the back plate is reduced.
As shown in fig. 6, the present invention further provides a display device 30, wherein the display device 30 includes the backlight module 20 according to the above embodiment.
The display device 30 may be: 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 photo frame, a navigator and the like.
When the display device 30 of the present embodiment adopts the backlight module 20 described in the above embodiments, the display effect is better.
Of course, other conventional structures, such as a power supply unit, a display driving unit, and the like, may also be included in the display device 30 of the present embodiment.
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, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A backlight module, comprising:
the back plate is provided with a plurality of through holes;
the lamp panels are arranged on the first surface of the backboard; and
the supporting columns are fixed on the back plate through the through holes; wherein the through-hole is located the lamp plate is adjacent with another the backplate that the lamp plate concatenation department corresponds.
2. The backlight module of claim 1, wherein the backlight module further comprises:
a plurality of reflector plates, each all attached each on the lamp plate the reflector plate.
3. The backlight module of claim 1, wherein the backlight module further comprises:
the diffusion plate is arranged on the support columns; and
and the membrane is arranged on the diffusion plate.
4. The backlight module of claim 1, wherein each of the support posts comprises:
the first cover body is attached to the second surface of the back plate;
the fixing blocks are attached to the cover body, and each fixing block is arranged in the corresponding through hole; and
and the positioning column is arranged on the retaining block.
5. The backlight module as claimed in claim 4, wherein a plurality of the first covers are connected to form a second cover, and the second cover is in the shape of a strip.
6. The backlight module of claim 4, wherein the shape of the retention block comprises a square, a rectangle or a triangle.
7. The backlight module as claimed in claim 1, wherein at least two through holes are formed at the joint of the long edge of each lamp panel and the long edge of the other lamp panel;
each the broadside of lamp plate is equipped with at least one through-hole with another the broadside concatenation department of lamp plate.
8. The backlight module of claim 1, wherein the spacing between the support posts of each row is equal.
9. The backlight module of claim 1, wherein the spacing between the support posts of each row is equal.
10. A display device comprising the backlight module of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911176100.9A CN110908188B (en) | 2019-11-26 | 2019-11-26 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911176100.9A CN110908188B (en) | 2019-11-26 | 2019-11-26 | Backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN110908188A true CN110908188A (en) | 2020-03-24 |
| CN110908188B CN110908188B (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911176100.9A Active CN110908188B (en) | 2019-11-26 | 2019-11-26 | Backlight module and display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113448123A (en) * | 2021-06-21 | 2021-09-28 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN113467127A (en) * | 2021-05-31 | 2021-10-01 | 惠科股份有限公司 | Backlight module and display device |
| WO2021218478A1 (en) * | 2020-04-28 | 2021-11-04 | 海信视像科技股份有限公司 | Display apparatus |
| CN114545681A (en) * | 2021-12-30 | 2022-05-27 | 惠科股份有限公司 | Backlight module and display device |
| WO2023124290A1 (en) * | 2021-12-31 | 2023-07-06 | 惠科股份有限公司 | Backlight module and display apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021218478A1 (en) * | 2020-04-28 | 2021-11-04 | 海信视像科技股份有限公司 | Display apparatus |
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| CN113448123A (en) * | 2021-06-21 | 2021-09-28 | Tcl华星光电技术有限公司 | Backlight module and display device |
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| WO2023124290A1 (en) * | 2021-12-31 | 2023-07-06 | 惠科股份有限公司 | Backlight module and display apparatus |
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| Publication number | Publication date |
|---|---|
| CN110908188B (en) | 2022-11-08 |
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