CN112162429A - Light emitting diode and backlight module - Google Patents
Light emitting diode and backlight module Download PDFInfo
- Publication number
- CN112162429A CN112162429A CN202010905065.6A CN202010905065A CN112162429A CN 112162429 A CN112162429 A CN 112162429A CN 202010905065 A CN202010905065 A CN 202010905065A CN 112162429 A CN112162429 A CN 112162429A
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- China
- Prior art keywords
- display screen
- controller
- backlight module
- light
- liquid crystal
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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
- G02F1/133603—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
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
-
- 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
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
Abstract
The invention discloses a light-emitting diode and a backlight module, comprising a display screen shell, wherein a secondary light-emitting plate is arranged inside the display screen shell, a secondary light-emitting body is uniformly arranged on the surface of the secondary light-emitting plate, the backlight module is arranged in front of the secondary light-emitting plate, a liquid crystal display screen is arranged in front of the backlight module, the liquid crystal display screen is arranged in front of the backlight module, a controller is arranged on the back of the display screen shell, the controller is electrically connected with the light-emitting diode, a condenser pipe is arranged on the surface of the controller, the tail end of the condenser pipe is connected with a condensing bracket, the condensing bracket is arranged on the back of the display screen shell, a reflux plate is arranged inside a rear cover, the controller is arranged on the back of the display screen shell, and the controller is electrically connected with the, the invention has the characteristics of strong practicability and effective cooling.
Description
Technical Field
The invention relates to the technical field of light emitting diodes and backlight modules, in particular to a light emitting diode and a backlight module.
Background
The liquid crystal display is a passive light-emitting element, the display screen does not emit light, but is illuminated by a backlight system below the display screen, the backlight source and the liquid crystal display screen are combined together to form a liquid crystal display module, the lower figure is a common structure of the backlight source of the liquid crystal display, the liquid crystal backlight is a planar uniform lighting device, a cold cathode fluorescent lamp tube or an LED lamp strip used as a light source is arranged at two sides or one side (possibly a long side or a short side) of the whole backlight source, the cold cathode fluorescent lamp tube is a linear light source, the LED is a point light source, the light source is converted into the surface light source, a light guide plate is required to be used, the light guide plate is generally made of high-light-transmittance acrylic plastic, the surface is very smooth and flat, so that most of internal light rays can be regularly and totally reflected on the flat surface of the light guide plate and, the light is not regularly reflected but emitted to the upper part of the light guide plate at the position where the light guide plate is printed with the mesh points, the density of the mesh points at each position can be controlled to control the quantity of the light emitted by the light guide plate at the position, the precisely designed mesh points of the light guide plate can ensure that the light emitted from two sides is uniformly spread on the whole plane, and optical diaphragms can be arranged above the light guide plate and play a role in homogenizing the light and converging large-angle light for front observation and the like.
Disclosure of Invention
The present invention is directed to a light emitting diode and a backlight module to solve the above problems.
In order to solve the technical problems, the invention provides the following technical scheme: light emitting diode and backlight unit, including the display screen shell, the internally mounted of display screen shell has the secondary luminescent plate, the surperficial uniform mounting of secondary luminescent plate has the secondary luminous body, and the secondary luminescent plate can install all secondary luminous bodies at the coplanar, and the light that makes its during operation every secondary luminous body sent is unanimous when reaching liquid crystal display department.
According to the technical scheme, backlight unit is installed in the place ahead of secondary luminescent plate, liquid crystal display is installed in backlight unit's the place ahead, and liquid crystal display is passive light emitting component, and the display screen itself is not luminous, but is lighted by the backlight unit of its rear, is the luminous component of whole backlight unit during the secondary luminous body in the secondary luminescent plate, and light shows on liquid crystal display behind backlight unit to the liquid crystal display side can show the image.
According to the technical scheme, the controller is installed at the back of the display screen shell, the controller is electrically connected with the light emitting diode, before pictures need to be played on the display screen, image signals are transmitted to the controller, the controller can control the on-off and brightness of each secondary luminous body on the surface of the secondary luminous plate according to the image pictures, the secondary luminous bodies can emit light needed by each pixel point, the light emitted by the secondary luminous bodies can penetrate through the backlight module to reach the liquid crystal display screen, and then the liquid crystal display screen displays the needed images.
According to the technical scheme, the surface of the controller is provided with the condensing pipe, the tail end of the condensing pipe is connected with the condensing bracket, the condensing bracket is arranged on the back of the display screen shell, in the using process of the liquid crystal display, the controller needs to control all the secondary luminous bodies to emit light, and along with the playing of the video picture, the controller needs to control the secondary luminous bodies to continuously change the brightness of the secondary luminous bodies, the power of the controller is high, so a large amount of heat energy is generated in the working process of the controller, the controller and the secondary luminous plate can be burnt if the heat energy is not discharged in time, the condenser pipe is arranged on the surface of the controller, and can effectively reduce the heat generated by the controller during high-power operation when the controller works, the controller is cooled, the controller keeps a good working environment, the working efficiency can be improved, and the service life of the controller can be prolonged.
According to the technical scheme, the fan bracket is installed at the back of display screen shell, the internally mounted of fan bracket has cooling fan, and in display working process, the secondary luminescent plate can produce a large amount of heats, and cooling fan can blow away the produced heat of secondary luminescent plate, and at the in-process of blowing, wind can also blow the cold air around the condenser pipe to each position of secondary luminescent plate, lets its supplementary cooling, and the effect is showing more.
According to the technical scheme, the rear cover is installed on the right side of the fan support, the backflow plate is installed in the rear cover through electric welding, the cooling fan blows air, the backflow plate is installed inside the rear cover, the backflow plate can strengthen air flow inside the rear cover in the cooling fan blowing and heat dissipation process, and accordingly wind power is larger and the cooling effect is better.
Compared with the prior art, the invention has the following beneficial effects: the temperature can be effectively reduced, and the invention,
(1) the liquid crystal display is a passive light-emitting element by arranging the secondary light-emitting plate, the display screen does not emit light but is illuminated by the backlight module at the rear part of the display screen, the secondary light-emitting body in the secondary light-emitting plate is an element for emitting light of the whole backlight module, and light is displayed on the liquid crystal display screen after passing through the backlight module, so that the liquid crystal display screen can display images;
(2) through the arrangement of the condenser pipe, in the use process of the liquid crystal display, the controller needs to control all secondary luminous bodies to emit light, and along with the playing of a video picture, the controller needs to control the secondary luminous bodies to continuously change the brightness of the secondary luminous bodies, so the use power of the controller is high, a large amount of heat energy can be generated in the working process of the controller, if the heat energy is not discharged in time, the controller and the secondary luminous plates can be burnt, the condenser pipe is arranged on the surface of the controller, the condenser pipe can effectively reduce the heat generated in the high-power working process of the controller when the controller works, the controller is cooled, the controller can keep a good working environment, the working efficiency can be improved, and the service life of the controller can also be prolonged;
(3) through being provided with the back lid, in the display course of operation, the secondary luminescent plate can produce a large amount of heats, the cooling fan can blow away the produced heat of secondary luminescent plate, the backward flow board is still installed to the inside of back lid, the backward flow board can be with the inside air current reinforcing of back lid at the radiating in-process of cooling fan blowing, make wind-force bigger, the cooling effect is better, simultaneously because the back lid is the inclined plane structure, so it is bigger at air outlet department wind pressure, from this can take away more heats, at the in-process of blowing, wind can also blow the cold air around the condenser pipe to each position of secondary luminescent plate, let its supplementary cooling, the effect is more showing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall backside structure of the present invention;
FIG. 2 is a schematic diagram of a rear perspective structure of the present invention;
FIG. 3 is a schematic structural view of the front face of the present invention;
FIG. 4 is a schematic structural view of the rear cover of the present invention;
fig. 5 is a schematic view of the internal structure of the liquid crystal display panel of the present invention;
in the figure: 1. a fan bracket; 2. a cooling fan; 3. a rear cover; 4. a display screen housing; 5. a controller; 6. a condenser tube; 7. a condensing support; 8. a liquid crystal display screen; 9. a return plate; 10. a secondary light emitting plate; 11. a backlight module is provided.
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.
Referring to fig. 1-5, the present invention provides the following technical solutions: the light-emitting diode and backlight module comprises a display screen shell 4, wherein a secondary light-emitting plate 10 is arranged inside the display screen shell 4, secondary light-emitting bodies are uniformly arranged on the surface of the secondary light-emitting plate 10, and all the secondary light-emitting bodies can be arranged on the same plane by the secondary light-emitting plate 10, so that the light emitted by each secondary light-emitting body is consistent when reaching a liquid crystal display screen 8 when the secondary light-emitting plate 10 works;
the backlight module 11 is installed in front of the secondary luminescent plate 10, the liquid crystal display 8 is installed in front of the backlight module 11, the liquid crystal display 8 is a passive light-emitting component, the display does not emit light, but is illuminated by the backlight module 11 behind the display, the secondary luminescent body in the secondary luminescent plate 10 is a component for the whole backlight module 11 to emit light, and light is displayed on the liquid crystal display 8 after passing through the backlight module 11, so that the liquid crystal display 8 can only display images;
the back of the display screen shell 4 is provided with a controller 5, the controller 5 is electrically connected with the light emitting diode, before the display screen needs to play pictures, an image signal is transmitted to the controller 5, the controller 5 can control the on-off and the brightness of each secondary luminous body on the surface of the secondary luminous plate 10 according to the image pictures, so that the secondary luminous bodies emit light required by each pixel point, the light emitted by the secondary luminous bodies can pass through the backlight module 11 to reach the liquid crystal display screen 8, and then the liquid crystal display screen 8 displays the required images;
the surface of the controller 5 is provided with a condenser tube 6, the tail end of the condenser tube 6 is connected with a condensing bracket 7, the condensing bracket 7 is arranged at the back of the display screen shell 4, in the use process of the liquid crystal display, the controller 5 needs to control all secondary luminous bodies to emit light, and along with the playing of video pictures, the controller 5 needs to control the secondary luminous bodies to continuously change the brightness thereof, so the use power of the controller 5 is very large, a large amount of heat energy can be generated in the working process of the controller 5, if the heat energy is not discharged in time, the controller 5 and the secondary luminous plates 10 can be burned out, the condenser tube 6 is arranged on the surface of the controller 5, when the controller 5 works, the condenser tube 6 can effectively reduce the heat generated when the controller 5 works at high power, the controller 5 is cooled, the controller 5 is enabled to keep a good working environment, and the working efficiency can be, the service life of the device can be prolonged;
the fan support 1 is installed at the back of the display screen shell 4, the cooling fan 2 is installed inside the fan support 1, the secondary luminescent plate 10 can generate a large amount of heat in the working process of the display, the cooling fan 2 can blow away the heat generated by the secondary luminescent plate 10, and in the blowing process, cold air around the condenser pipe 6 can be blown to all positions of the secondary luminescent plate 10 by the air, so that the secondary luminescent plate can assist in cooling, and the effect is more remarkable;
the rear cover 3 is installed on the right side of the fan support 1, the backflow plate 9 is installed inside the rear cover 3 in an electric welding mode, the back of the rear cover 3 is an inclined plane, and in the air blowing process of the cooling fan 2, the backflow plate 9 is further installed inside the rear cover 3, and the backflow plate 9 can enhance air flow inside the rear cover 3 in the air blowing and heat dissipation process of the cooling fan 2, so that wind power is larger, and the cooling effect is better;
the working principle is as follows: the secondary luminous plate 10 can install all the secondary luminous bodies on the same plane, when the secondary luminous bodies work, the light emitted by each secondary luminous body reaches the liquid crystal display screen 8, the liquid crystal display screen 8 is a passive luminous element, the display screen does not emit light, but is illuminated by the backlight module 11 at the rear part of the display screen, when the secondary luminous bodies in the secondary luminous plate 10 are luminous elements of the whole backlight module 11, the light passes through the backlight module 11 and then is displayed on the liquid crystal display screen 8, so that the liquid crystal display screen 8 can display images, before the display screen needs to play the images, the image signals are transmitted to the controller 5, the controller 5 can control the on-off and the brightness of each secondary luminous body on the surface of the secondary luminous plate 10 according to the image, the light required by each pixel point is emitted, the light emitted by the secondary luminous bodies can pass through the backlight module 11 and reach the liquid crystal, then the liquid crystal display 8 displays the required image, in the using process of the liquid crystal display, the controller 5 needs to control all the secondary light-emitting bodies to emit light, and along with the playing of the video picture, the controller 5 needs to control the secondary light-emitting bodies to continuously change the brightness, so the using power of the controller 5 is very high, so a large amount of heat energy can be generated in the working process of the controller 5, if the heat energy is not discharged in time, the controller 5 and the secondary light-emitting plates 10 can be burnt, the surface of the controller 5 is provided with the condenser tube 6, the condenser tube 6 can effectively reduce the heat generated when the controller 5 works with high power, so that the controller 5 is cooled, the controller 5 can maintain a good working environment, the working efficiency can be improved, the service life of the controller can be prolonged, and in the working process of the display, the secondary light-emitting plates 10 can generate a large amount of heat, cooling fan 2 can blow off the produced heat of secondary luminescent plate 10, at the in-process of blowing, wind can also blow the cold air around condenser pipe 6 to 10 each positions of secondary luminescent plate, let its supplementary cooling, the effect is showing more, at cooling fan 2 in-process of blowing, because backward flow board 9 is still installed to the inside of back lid 3, backward flow board 9 can be with the inside air current reinforcing of back lid 3 at cooling fan 2 radiating in-process of blowing, make wind-force bigger, the cooling effect is better.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Light emitting diode and backlight unit, including display screen shell (4), the internally mounted of display screen shell (4) has secondary luminescent plate (10), the surface uniform mounting of secondary luminescent plate (10) has the secondary luminous body.
2. The LED and backlight module as claimed in claim 1, wherein: and a backlight module (11) is arranged in front of the secondary luminescent plate (10).
3. The LED and backlight module as claimed in claim 2, wherein: and a liquid crystal display screen (8) is arranged in front of the backlight module (11).
4. The LED and backlight module as claimed in claim 3, wherein: the back of the display screen shell (4) is provided with a controller (5), and the controller (5) is electrically connected with the light emitting diode.
5. The LED and backlight module as claimed in claim 4, wherein: the surface mounting of controller (5) has condenser pipe (6), the end-to-end connection of condenser pipe (6) has condensation support (7), condensation support (7) are installed at the back of display screen shell (4).
6. The LED and backlight module as claimed in claim 5, wherein: the fan support (1) is installed at the back of display screen shell (4), and cooling fan (2) are installed inside fan support (1).
7. The LED and backlight module as claimed in claim 6, wherein: the right side of the fan bracket (1) is provided with a rear cover (3).
8. The LED and backlight module as claimed in claim 7, wherein: the internal electric welding of back lid (3) installs backward flow board (9), the back of back lid (3) is the inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905065.6A CN112162429A (en) | 2020-09-01 | 2020-09-01 | Light emitting diode and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905065.6A CN112162429A (en) | 2020-09-01 | 2020-09-01 | Light emitting diode and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112162429A true CN112162429A (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010905065.6A Pending CN112162429A (en) | 2020-09-01 | 2020-09-01 | Light emitting diode and backlight module |
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| Country | Link |
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| CN (1) | CN112162429A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070195282A1 (en) * | 2006-02-23 | 2007-08-23 | Seiko Epson Corporation | Projector |
| TWI292694B (en) * | 2006-08-29 | 2008-01-11 | ||
| JP2009251175A (en) * | 2008-04-03 | 2009-10-29 | Canon Inc | Display |
| CN101943823A (en) * | 2005-12-28 | 2011-01-12 | 株式会社半导体能源研究所 | Display device |
| CN102043267A (en) * | 2008-03-05 | 2011-05-04 | 乐金显示有限公司 | Display device |
| US20140139780A1 (en) * | 2012-11-16 | 2014-05-22 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Direct backlight module and liquid display with the same |
| CN210270447U (en) * | 2019-06-24 | 2020-04-07 | 盐城华旭光电技术有限公司 | Backlight light-emitting height adjusting system |
-
2020
- 2020-09-01 CN CN202010905065.6A patent/CN112162429A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943823A (en) * | 2005-12-28 | 2011-01-12 | 株式会社半导体能源研究所 | Display device |
| US20070195282A1 (en) * | 2006-02-23 | 2007-08-23 | Seiko Epson Corporation | Projector |
| TWI292694B (en) * | 2006-08-29 | 2008-01-11 | ||
| CN102043267A (en) * | 2008-03-05 | 2011-05-04 | 乐金显示有限公司 | Display device |
| JP2009251175A (en) * | 2008-04-03 | 2009-10-29 | Canon Inc | Display |
| US20140139780A1 (en) * | 2012-11-16 | 2014-05-22 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Direct backlight module and liquid display with the same |
| CN210270447U (en) * | 2019-06-24 | 2020-04-07 | 盐城华旭光电技术有限公司 | Backlight light-emitting height adjusting system |
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Application publication date: 20210101 |
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