CN108563073B - Step-shaped backlight module with limiting assembly - Google Patents
Step-shaped backlight module with limiting assembly Download PDFInfo
- Publication number
- CN108563073B CN108563073B CN201810522502.9A CN201810522502A CN108563073B CN 108563073 B CN108563073 B CN 108563073B CN 201810522502 A CN201810522502 A CN 201810522502A CN 108563073 B CN108563073 B CN 108563073B
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- China
- Prior art keywords
- plate
- reflecting plate
- limiting
- edge
- light guide
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- 238000009792 diffusion process Methods 0.000 claims abstract description 14
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 7
- 238000003384 imaging method Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000009471 action Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 abstract description 3
- 235000009537 plain noodles Nutrition 0.000 abstract description 2
- 239000012788 optical film Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- 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 ladder-shaped backlight module with a limiting component, which comprises a light source, a light guide plate and a reflecting plate; the light source is laminated with the income plain noodles of light guide plate, and the reflecting plate top has laminated light guide plate, diffusion piece, prism piece in proper order, and the area of every layer of part is all bigger than the part area of its adjacent top, still is equipped with spacing bordure board on the reflecting plate, and spacing bordure board lower extreme part is located the logical inslot that the reflecting plate was seted up, and spacing bordure board also is the echelonment structure and closely laminates with light guide plate, diffusion piece, prism piece's lateral wall and upper surface respectively, spacing bordure board with can dismantle through the round pin axle between the reflecting plate with the part of reflecting plate upper surface laminating is connected. The limiting and binding plates are matched with each other to limit and fix the plates, so that relative movement between the plates is avoided, the uniformity of the light source of the backlight module is improved, and the imaging effect of the liquid crystal screen is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a stepped backlight module with a limiting component.
Background
The backlight module is one of the important components of the liquid crystal display, and has the functions of providing enough brightness and uniformly distributed light sources for the liquid crystal screen. The backlight module mainly comprises a light source, a light guide plate, an optical film and the like, and is divided into an edge light type and a direct type according to different light source distribution positions.
In the existing backlight module, the position of the internal optical film is not relatively fixed with other components, so that the internal optical film and the light guide plate or other optical films are relatively moved, powder or scratches are easily generated after the internal optical film and the light guide plate or other optical films are rubbed for a long time, the uniformity of a light source provided by the backlight module is affected, and the imaging quality of a liquid crystal screen is reduced.
Disclosure of Invention
The invention aims to solve the problems and provide a ladder-shaped backlight module with a limiting assembly, which can well fix the components of each layer in the backlight module together so that the components do not slide relatively.
In order to achieve the above object, the present invention adopts the following method: a ladder-shaped backlight module with a limit component comprises a light source, a light guide plate and a reflecting plate; the light source with the laminating of income plain noodles of light guide plate, diffusion piece, prism piece have been laminated in proper order to the reflecting plate top, and the area of every layer of part is all than the part area of its adjacent top big, so reflecting plate, light guide plate, diffusion piece, prism piece form step structure, still be equipped with spacing board of borduring on the reflecting plate, spacing board lower extreme part is located in the logical inslot that the reflecting plate was seted up, just spacing board of borduring also is step structure and respectively with the lateral wall and the upper surface of light guide plate, diffusion piece, prism piece are laminated tightly, spacing board of borduring with can dismantle through the round pin axle between the reflecting plate the part of reflecting plate upper surface laminating is connected.
As an improvement of the invention, two limit edge-wrapping plates are arranged on the side walls of the periphery of the reflecting plate.
As an improvement of the invention, the limiting and edge-wrapping plates arranged on the opposite sides of the reflecting plates in parallel are symmetrically distributed.
As an improvement of the invention, the part on the inner wall of the limit wrapping plate, which is contacted with the light guide plate, the diffusion sheet and the prism sheet, is provided with an anti-slip rubber pad.
As an improvement of the invention, the cross section of the top of the upper end of the limit wrapping plate is triangular.
The beneficial effects are that: according to the ladder-shaped backlight module with the limiting component, the limiting binding plates are matched with each other to limit and fix the plates, so that relative movement between the plates is avoided, the uniformity of a light source of the backlight module is improved, and the imaging effect of a liquid crystal screen is improved.
Drawings
FIG. 1 is a front view of the present invention; FIG. 2 is a top view of the present invention;
Fig. 3 is an enlarged schematic view of fig. 1 at a.
The components in the figure are as follows: 1-light source, 2-light guide plate, 3-reflecting plate, 4-diffusion sheet, 5-prism sheet, 6-spacing board of borduring, 7-through groove, 8-anti-skidding cushion, 9-round pin axle.
Detailed Description
The invention will be further described with reference to the following examples and with reference to the accompanying drawings, it being understood that the following detailed description is only illustrative of the invention and is not intended to limit the scope of the invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As an embodiment of the invention, a step-shaped backlight module with a limiting component is described with reference to the accompanying drawings, and is characterized in that: comprises a light source 1, a light guide plate 2 and a reflecting plate 3; the light source 1 is attached to the light incident surface of the light guide plate 2, the diffusion sheet 4 and the prism sheet 5 are sequentially laminated above the reflecting plate 3, the area of each layer of component is larger than that of the adjacent component above the light guide plate, namely, the area of the reflecting plate is larger than that of the light guide plate stacked above the reflecting plate, the area of the light guide plate is larger than that of the diffusion sheet stacked above the light guide plate, and the area of the diffusion sheet is larger than that of the prism sheet stacked above the light guide plate, so that the surface area of each component is reduced layer by layer to form a stepped structure, the reflecting plate 3 is further provided with a limiting and edge-covering plate 6, the lower end part of the limiting and edge-covering plate 6 is positioned in a through groove 7 formed in the reflecting plate 3, and the limiting and edge-covering plate 6 is also in a stepped structure and is tightly attached to the side wall and the upper surface of the light guide plate 2, the diffusion sheet 4 and the prism sheet 5 respectively, and the part attached to the upper surface of the reflecting plate 3 is detachably connected through a pin shaft. Each side wall of the backlight module is provided with two limiting and edge-wrapping plates 6, and the limiting and edge-wrapping plates 6 on the opposite side walls are symmetrically distributed, so that the stepped limiting and edge-wrapping plates 6 opposite to each other limit and lock each plate-type component of the backlight module, and relative movement of the plate-type components in the use process is avoided. In addition, a plurality of sections of anti-slip rubber mats are arranged on the inner wall of the limit wrapping plate 6, so that sliding between the limit wrapping plate 6 and each component of the backlight module is avoided.
As another embodiment of the present invention, the top of the upper end of the limit wrapping plate 6 has a triangular cross section. Because the top of the upper end of the limit wrapping plate 6 is a free end, the limit wrapping plate is arranged to be inclined triangle in order to avoid the action of external force on the end face, and therefore the limit wrapping plate cannot be lifted even if the transverse acting force exists.
According to the ladder-shaped backlight module with the limiting component, the limiting binding plates are matched with each other to limit and fix the plates, so that relative movement between the plates is avoided, the uniformity of a light source of the backlight module is improved, and the imaging effect of a liquid crystal screen is improved.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the present invention in any other way, but is intended to cover any modifications or equivalent variations according to the technical spirit of the present invention, which fall within the scope of the present invention as defined by the appended claims.
Claims (1)
1. The utility model provides a echelonment backlight unit with spacing subassembly which characterized in that: comprises a light source (1), a light guide plate (2) and a reflecting plate (3); the light source (1) is attached to the light incident surface of the light guide plate (2), the diffusion sheet (4) and the prism sheet (5) are sequentially laminated above the reflecting plate (3), the area of each layer of component is larger than that of the adjacent upper part of each layer of component, the reflecting plate (3), the light guide plate (2), the diffusion sheet (4) and the prism sheet (5) form a stepped structure, a limit edge covering plate (6) is further arranged on the reflecting plate (3), the lower end part of the limit edge covering plate (6) is positioned in a through groove (7) formed in the reflecting plate (3), the limit edge covering plate (6) is also of a stepped structure and is respectively tightly attached to the side wall and the upper surface of the light guide plate (2), the diffusion sheet (4) and the prism sheet (5), the limit edge covering plate (6) and the upper surface of the reflecting plate (3) are attached to each other in a detachable mode through a pin shaft (9), the two limit edge covering plates (6) are arranged on the reflecting plate (3), the two limit edge covering plates (6) are arranged on the two side walls (6) and are arranged on the two side edges of the reflecting plate (3) in parallel to each side covering plate (6), the cross section at the top of the upper end of the limiting and edge-covering plate (6) is triangular, and because the top of the upper end of the limiting and edge-covering plate (6) is a free end, the limiting and edge-covering plate is set to be inclined triangular in order to avoid the action of external force on the end face of the limiting and edge-covering plate, so that the limiting and edge-covering plate cannot be lifted even if the transverse acting force exists, the limiting and edge-covering plates are mutually matched and used for limiting and fixing all the plates, relative movement between the limiting and edge-covering plates is avoided, the uniformity of a light source of the backlight module is improved, and the imaging effect of a liquid crystal screen is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522502.9A CN108563073B (en) | 2018-05-28 | 2018-05-28 | Step-shaped backlight module with limiting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522502.9A CN108563073B (en) | 2018-05-28 | 2018-05-28 | Step-shaped backlight module with limiting assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108563073A CN108563073A (en) | 2018-09-21 |
| CN108563073B true CN108563073B (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810522502.9A Active CN108563073B (en) | 2018-05-28 | 2018-05-28 | Step-shaped backlight module with limiting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108563073B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114035370B (en) * | 2021-09-23 | 2023-11-10 | 福州大学 | Optical machine structure capable of sliding dimming |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0990361A (en) * | 1995-09-27 | 1997-04-04 | Toshiba Lighting & Technol Corp | Back light and liquid crystal display device formed by using the same |
| JP2000147497A (en) * | 1998-11-12 | 2000-05-26 | Enplas Corp | Side light type surface light source device and liquid crystal display device |
| US6419369B1 (en) * | 1999-10-26 | 2002-07-16 | Advanced Display Inc. | Sheet-like source light device and liquid crystal display device using the same |
| JP2003295182A (en) * | 2002-03-29 | 2003-10-15 | Sharp Corp | Liquid crystal display device |
| JP2006301082A (en) * | 2005-04-18 | 2006-11-02 | Skg:Kk | Liquid crystal display and lighting device |
| KR20070025613A (en) * | 2005-09-03 | 2007-03-08 | 엘지.필립스 엘시디 주식회사 | The backlight unit and liquid crystal display using the same |
| JP2008299182A (en) * | 2007-06-01 | 2008-12-11 | Hitachi Ltd | Liquid crystal display |
| CN102929010A (en) * | 2012-10-29 | 2013-02-13 | 深圳市华星光电技术有限公司 | Liquid crystal module and step-shaped frame structure thereof |
| CN104380183A (en) * | 2012-07-13 | 2015-02-25 | 夏普株式会社 | Display device and television receiver |
| CN104456302A (en) * | 2014-11-17 | 2015-03-25 | 深圳市华星光电技术有限公司 | Backlight module and display |
| CN104965331A (en) * | 2015-07-10 | 2015-10-07 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN208351201U (en) * | 2018-05-28 | 2019-01-08 | 江苏聚泰科技有限公司 | A kind of ladder-like backlight module with limit assembly |
-
2018
- 2018-05-28 CN CN201810522502.9A patent/CN108563073B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0990361A (en) * | 1995-09-27 | 1997-04-04 | Toshiba Lighting & Technol Corp | Back light and liquid crystal display device formed by using the same |
| JP2000147497A (en) * | 1998-11-12 | 2000-05-26 | Enplas Corp | Side light type surface light source device and liquid crystal display device |
| US6419369B1 (en) * | 1999-10-26 | 2002-07-16 | Advanced Display Inc. | Sheet-like source light device and liquid crystal display device using the same |
| JP2003295182A (en) * | 2002-03-29 | 2003-10-15 | Sharp Corp | Liquid crystal display device |
| JP2006301082A (en) * | 2005-04-18 | 2006-11-02 | Skg:Kk | Liquid crystal display and lighting device |
| KR20070025613A (en) * | 2005-09-03 | 2007-03-08 | 엘지.필립스 엘시디 주식회사 | The backlight unit and liquid crystal display using the same |
| JP2008299182A (en) * | 2007-06-01 | 2008-12-11 | Hitachi Ltd | Liquid crystal display |
| CN104380183A (en) * | 2012-07-13 | 2015-02-25 | 夏普株式会社 | Display device and television receiver |
| CN102929010A (en) * | 2012-10-29 | 2013-02-13 | 深圳市华星光电技术有限公司 | Liquid crystal module and step-shaped frame structure thereof |
| CN104456302A (en) * | 2014-11-17 | 2015-03-25 | 深圳市华星光电技术有限公司 | Backlight module and display |
| CN104965331A (en) * | 2015-07-10 | 2015-10-07 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN208351201U (en) * | 2018-05-28 | 2019-01-08 | 江苏聚泰科技有限公司 | A kind of ladder-like backlight module with limit assembly |
Non-Patent Citations (1)
| Title |
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| 基于局部均值和标准差的LCD动态背光调整;章小兵;王茹;董戴;韩江洪;吴华夏;;液晶与显示;20111015(第05期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN108563073A (en) | 2018-09-21 |
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