CN111208672A - Direct type module with double-layer light mixing cavity - Google Patents
Direct type module with double-layer light mixing cavity Download PDFInfo
- Publication number
- CN111208672A CN111208672A CN202010040678.8A CN202010040678A CN111208672A CN 111208672 A CN111208672 A CN 111208672A CN 202010040678 A CN202010040678 A CN 202010040678A CN 111208672 A CN111208672 A CN 111208672A
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- Prior art keywords
- diffusion plate
- plate
- direct type
- double
- mixing cavity
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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
- G02F1/133606—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)
Abstract
The invention discloses a direct type module with a double-layer light mixing cavity, which comprises: casing and install diffuser plate and lamp strip inside the casing, wherein: the diffusion plate comprises a first diffusion plate and a second diffusion plate which is positioned on one side of the first diffusion plate and is arranged at a distance from the first diffusion plate; the lamp strip is located the one side that the second diffuser plate was kept away from to first diffuser plate. The invention enables the direct type backlight mode to have the thickness similar to that of the side type backlight. Thereby improving the product competitiveness.
Description
Technical Field
The invention relates to the technical field of LED electrical equipment, in particular to a direct type module with a double-layer light mixing cavity.
Background
The direct type backlight is the most widely used backlight mode in the LCD television industry, but the backlight module is generally thicker than the side type backlight, thereby affecting the appearance of the direct type backlight television. The side-in backlight is usually higher in cost, and the cost performance of the television is obviously reduced by using the side-in backlight mode. In the increasingly competitive color tv industry, too high a cost often means the loss of the order.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a direct type module with a double-layer light mixing cavity.
The invention provides a direct type module with a double-layer light mixing cavity, which comprises: casing and install diffuser plate and lamp strip inside the casing, wherein:
the diffusion plate comprises a first diffusion plate and a second diffusion plate which is positioned on one side of the first diffusion plate and is arranged at a distance from the first diffusion plate;
the lamp strip is located the one side that the second diffuser plate was kept away from to first diffuser plate.
Preferably, the housing comprises a back plate, and the light bar is fixedly mounted on the back plate.
Preferably, the first diffusion plate is located on one side of the light bar away from the back plate and fixed on the back plate through the first bracket.
Preferably, the second diffusion plate is located on one side of the first diffusion plate away from the light bar and fixed on the back plate through the second bracket.
Preferably, the first diffusion plate is provided with a through hole; one end of the second support is fixedly arranged on the back plate, and the other end of the second support penetrates through the through hole in the first diffusion plate to be connected with the second diffusion plate.
Preferably, the light bar comprises a lens with a lamp bead positioned outside the lamp bead.
According to the backlight module, the first diffusion plate is arranged on one side of the light bar, the second diffusion plate is arranged on one side, away from the light bar, of the first diffusion plate, so that light rays are atomized and homogenized for the first time by the first diffusion plate, and the primarily atomized and homogenized light rays are atomized and homogenized for the second time by the second diffusion plate, so that the backlight module which is uniform is obtained through a small number of point light sources and a thin light mixing cavity. This structure setting has solved current straight following formula module and has done the cavity for the picture taste than thicker, and the cavity is thinner needs more lamp strip and diaphragm just can accomplish the problem of better picture taste. So that the direct type backlight mode can also be similar to the thickness of the side type backlight. And the backlight cost has a larger cost advantage than that of the side-in backlight. Thereby improving the product competitiveness.
Drawings
Fig. 1 is a schematic structural diagram of a direct type module with a dual-layer light mixing cavity according to the present invention.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a direct type module with a double-layer light mixing cavity according to the present invention.
Referring to fig. 1, the present invention provides a direct type module with a dual-layer light mixing cavity, comprising: casing and install diffuser plate 1 and lamp strip 2 inside the casing, wherein:
the diffusion plate 1 comprises a first diffusion plate 11 and a second diffusion plate 12 which is positioned on one side of the first diffusion plate 11 and is arranged at a distance from the first diffusion plate 11; the light bar 2 is located on one side of the first diffusion plate 11 away from the second diffusion plate 12, so that the light emitted by the light bar 2 is primarily atomized and homogenized by the first diffusion plate 11, and the primarily atomized and homogenized light is secondarily atomized and homogenized by the second diffusion plate 12. Thereby, a uniform backlight module is obtained through a small number of point light sources and a thin light mixing cavity
In the invention, the structure that the first diffusion plate 11 is arranged on one side of the light bar 2 and the second diffusion plate 12 is arranged on one side of the first diffusion plate 11 far away from the light bar 2 solves the problem that the existing direct type module has a thicker cavity for picture taste, and the thinner cavity needs more light bars 2 and films to achieve better picture taste. So that the direct type backlight mode can also be similar to the thickness of the side type backlight. And the backlight cost has a larger cost advantage than that of the side-in backlight. Thereby improving the product competitiveness.
In addition, in the embodiment, the housing comprises a back plate 3, and the light bar 2 is fixedly arranged on the back plate 3; first diffuser plate 11 is located lamp strip 2 and keeps away from one side of backplate 3 and fixes on backplate 3 through first support 4, is equipped with the opening on first diffuser plate 11. The second diffusion plate 12 is located on one side of the first diffusion plate 11 away from the light bar 2 and fixed on the back plate 3 through the second bracket 5, specifically: one end of the second bracket 5 is fixedly installed on the back plate 3, and the other end thereof passes through the through hole of the first diffusion plate 11 to be connected with the second diffusion plate 12.
In this embodiment, the lamp strip 2 includes the lens 22 that the lamp pearl 21 is located the lamp pearl 21 outside. The light emitted from the lamp beads 21 is diffused by the lens 22.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a straight following formula module of double-deck mixed light cavity which characterized in that includes: casing and install diffuser plate (1) and lamp strip (2) inside the casing, wherein:
the diffusion plate (1) comprises a first diffusion plate (11) and a second diffusion plate (12) which is positioned on one side of the first diffusion plate (11) and is arranged at a distance from the first diffusion plate (11);
the light bar (2) is positioned on one side of the first diffusion plate (11) far away from the second diffusion plate (12).
2. The direct type module of the double-layer light mixing cavity according to claim 1, wherein the housing comprises a back plate (3), and the light bar (2) is fixedly mounted on the back plate (3).
3. The direct type module with double-layer light mixing cavity according to claim 2, wherein the first diffuser plate (11) is located on a side of the light bar (2) far away from the back plate (3) and fixed on the back plate (3) through the first bracket (4).
4. The direct type module of the dual-layer light mixing cavity of claim 3, wherein the second diffuser plate (12) is located on the side of the first diffuser plate (11) away from the light bar (2) and fixed on the back plate (3) through the second bracket (5).
5. The direct type module of the double-layer light mixing cavity according to claim 4, wherein the first diffuser plate (11) has through holes; one end of the second bracket (5) is fixedly arranged on the back plate (3), and the other end of the second bracket passes through the through hole on the first diffusion plate (11) to be connected with the second diffusion plate (12).
6. The direct type module of the double-layer light mixing cavity according to any one of claims 1-5, wherein the light bar (2) comprises a lens (22) with the light bead (21) outside the light bead (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010040678.8A CN111208672A (en) | 2020-01-15 | 2020-01-15 | Direct type module with double-layer light mixing cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010040678.8A CN111208672A (en) | 2020-01-15 | 2020-01-15 | Direct type module with double-layer light mixing cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111208672A true CN111208672A (en) | 2020-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010040678.8A Pending CN111208672A (en) | 2020-01-15 | 2020-01-15 | Direct type module with double-layer light mixing cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111208672A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050281050A1 (en) * | 2004-06-18 | 2005-12-22 | Au Optronics Corp. | Support member and light emitting diode module using the same |
| CN101105601A (en) * | 2006-07-11 | 2008-01-16 | 奇美电子股份有限公司 | Backlight module and liquid crystal display device using same |
| TW200821709A (en) * | 2006-11-15 | 2008-05-16 | Au Optronics Corp | Backlight module and liquid crystal display module |
| WO2011018963A1 (en) * | 2009-08-10 | 2011-02-17 | 住友化学株式会社 | Complex light control plate, area light source device, and transmission-type image display device |
| CN202017959U (en) * | 2011-02-15 | 2011-10-26 | 冠捷显示科技（厦门）有限公司 | Direct illumination LED backlight module group with light mixing apparatus |
| CN102287722A (en) * | 2011-09-07 | 2011-12-21 | 上海蓝光科技有限公司 | Direct type backlight source module |
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| CN202757018U (en) * | 2012-08-17 | 2013-02-27 | 深圳Tcl新技术有限公司 | Backlight module and liquid crystal display device |
| CN103823318A (en) * | 2014-02-13 | 2014-05-28 | 北京京东方显示技术有限公司 | Diffusion plate module, backlight source and display device |
| CN203857343U (en) * | 2013-12-16 | 2014-10-01 | Tcl海外电子（惠州）有限公司 | Backlight module and LED (light emitting diode) television |
| CN104360537A (en) * | 2014-11-05 | 2015-02-18 | 创维液晶器件(深圳)有限公司 | Direct type backlight module and display device |
| CN104501034A (en) * | 2014-09-11 | 2015-04-08 | 友达光电股份有限公司 | Thin type backlight module |
| CN204554536U (en) * | 2015-04-16 | 2015-08-12 | 深圳Tcl新技术有限公司 | Down straight aphototropism mode set and liquid crystal indicator |
| CN110376791A (en) * | 2019-07-17 | 2019-10-25 | 深圳创维－Rgb电子有限公司 | Down straight aphototropism mode set and display device |
| CN209728381U (en) * | 2019-05-29 | 2019-12-03 | Tcl海外电子（惠州）有限公司 | Down straight aphototropism mode set and television set |
-
2020
- 2020-01-15 CN CN202010040678.8A patent/CN111208672A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050281050A1 (en) * | 2004-06-18 | 2005-12-22 | Au Optronics Corp. | Support member and light emitting diode module using the same |
| CN101105601A (en) * | 2006-07-11 | 2008-01-16 | 奇美电子股份有限公司 | Backlight module and liquid crystal display device using same |
| TW200821709A (en) * | 2006-11-15 | 2008-05-16 | Au Optronics Corp | Backlight module and liquid crystal display module |
| WO2011018963A1 (en) * | 2009-08-10 | 2011-02-17 | 住友化学株式会社 | Complex light control plate, area light source device, and transmission-type image display device |
| CN202017959U (en) * | 2011-02-15 | 2011-10-26 | 冠捷显示科技（厦门）有限公司 | Direct illumination LED backlight module group with light mixing apparatus |
| CN102287722A (en) * | 2011-09-07 | 2011-12-21 | 上海蓝光科技有限公司 | Direct type backlight source module |
| CN102661535A (en) * | 2012-04-13 | 2012-09-12 | 深圳市华星光电技术有限公司 | Direct type backlight module |
| CN202757018U (en) * | 2012-08-17 | 2013-02-27 | 深圳Tcl新技术有限公司 | Backlight module and liquid crystal display device |
| CN203857343U (en) * | 2013-12-16 | 2014-10-01 | Tcl海外电子（惠州）有限公司 | Backlight module and LED (light emitting diode) television |
| CN103823318A (en) * | 2014-02-13 | 2014-05-28 | 北京京东方显示技术有限公司 | Diffusion plate module, backlight source and display device |
| CN104501034A (en) * | 2014-09-11 | 2015-04-08 | 友达光电股份有限公司 | Thin type backlight module |
| CN104360537A (en) * | 2014-11-05 | 2015-02-18 | 创维液晶器件(深圳)有限公司 | Direct type backlight module and display device |
| CN204554536U (en) * | 2015-04-16 | 2015-08-12 | 深圳Tcl新技术有限公司 | Down straight aphototropism mode set and liquid crystal indicator |
| CN209728381U (en) * | 2019-05-29 | 2019-12-03 | Tcl海外电子（惠州）有限公司 | Down straight aphototropism mode set and television set |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200529 |
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| RJ01 | Rejection of invention patent application after publication |