CN107561775B - Liquid crystal module and display device - Google Patents

Liquid crystal module and display device Download PDF

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Publication number
CN107561775B
CN107561775B CN201710732283.2A CN201710732283A CN107561775B CN 107561775 B CN107561775 B CN 107561775B CN 201710732283 A CN201710732283 A CN 201710732283A CN 107561775 B CN107561775 B CN 107561775B
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Prior art keywords
plate
light
liquid crystal
module
led lamp
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CN201710732283.2A
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CN107561775A (en
Inventor
刘欣
张辉
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Shenzhen Skyworth RGB Electronics Co Ltd
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Shenzhen Skyworth RGB Electronics Co Ltd
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Priority to CN201710732283.2A priority Critical patent/CN107561775B/en
Publication of CN107561775A publication Critical patent/CN107561775A/en
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Abstract

The invention discloses a liquid crystal module and display equipment, wherein the liquid crystal module comprises a module backboard, a support, a diffusion plate and a light-emitting assembly, wherein the diffusion plate is arranged opposite to the module backboard; the support is abutted between the module back plate and the diffusion plate, the support comprises a support part and a bottom plate connected with one end of the support part, which is far away from the bottom plate, is abutted with the diffusion plate, the outer side surface of the bottom plate is connected with the module back plate, and the inner side surface of the bottom plate is a reflection surface; the light-emitting component emits light relative to the inner side face of the bottom plate. The liquid crystal module provided by the invention has the advantages that the supporting piece and the light-emitting component are integrally arranged, so that the backlight of the liquid crystal module is uniform.

Description

Liquid crystal module and display device
Technical Field
The invention relates to the field of display equipment, in particular to a liquid crystal module and display equipment.
Background
In the traditional direct type backlight module, an LED lamp bar and a support piece are fixed on the bottom surface of a back plate through screws, a diffusion plate and a diaphragm are arranged on a top platform of a cavity of the back plate and supported by the support piece, and a lens is arranged on the periphery of the LED lamp. Due to the limited technical capabilities of the LED lamp and the lens, the light energy of the LED lamp cannot be fully turned on, and uneven light energy distribution, namely lamp grain shadow, dark corners, dark frames and the like on the subjective visual effect, can be formed on the diffusion plate; traditional support piece is made by organic glass, and the light energy of LED lamp is partly reflected back when the support piece is passed through, and part is absorbed by the support piece, and the skew is produced after the part is refracted, can form the support piece shadow on the diffuser plate finally.
Disclosure of Invention
The invention mainly aims to provide a liquid crystal module, and aims to solve the problem that the backlight effect formed by LED lamps and lenses on the back plate of the existing module is not good.
In order to achieve the above object, the present invention provides a liquid crystal module, including:
a module backplane;
the diffusion plate is arranged opposite to the module back plate;
the support is abutted between the module back plate and the diffusion plate and comprises a support part and a bottom plate connected with one end of the support part, which is far away from the bottom plate, is abutted with the diffusion plate, the outer side surface of the bottom plate is connected with the module back plate, and the inner side surface of the bottom plate is a reflection surface;
and the light source of the light-emitting assembly faces the bottom plate, so that the reflecting surface reflects light rays to the diffusion plate.
Furthermore, the inner side surface of the bottom plate is in a mesh shape.
Further, the supporting part is open toper transparent plate, the opening end of toper transparent plate with the bottom plate is connected, the pointed end of toper transparent plate with the diffuser plate butt, just the wall of toper transparent plate is dull polish form.
Furthermore, the light-emitting component comprises a light-transmitting plate which is connected with the supporting piece and is opposite to the bottom plate, and an LED lamp which is arranged on one side of the light-transmitting plate, which is far away from the bottom plate, and is connected with the light-transmitting plate.
Furthermore, a containing groove matched with the LED lamp is formed in the light-transmitting plate.
Furthermore, the PCB of the light-emitting component is electrically connected with the LED lamp and is arranged on one side of the LED lamp, which is away from the light-transmitting plate;
the edge of PCB board protrusion the edge of LED lamp, just the PCB board protrusion the part epirelief of LED lamp is equipped with the reference column, set up on the light-passing board and supply the reference column inlays the locating hole of establishing.
Further, what the PCB board deviated from be equipped with the anti-membrane of silver on the side of LED lamp, the edge protrusion of the anti-membrane of silver the edge of PCB board, just the edge of the anti-membrane of silver with light-passing board fixed connection.
Further, the light-transmitting plate is annularly arranged along the inner wall surface of the conical light-transmitting plate.
Further, the conical transparent plate is provided with a step wall opposite to the bottom plate, and the step arm is formed into the transparent plate.
The present invention also provides a display device, including the liquid crystal module as described above, the liquid crystal module including:
a module backplane;
the diffusion plate is arranged opposite to the module back plate;
the support is abutted between the module back plate and the diffusion plate and comprises a support part and a bottom plate connected with one end of the support part, which is far away from the bottom plate, is abutted with the diffusion plate, the outer side surface of the bottom plate is connected with the module back plate, and the inner side surface of the bottom plate is a reflection surface;
and the light-emitting component emits light relative to the inner side surface of the bottom plate.
According to the liquid crystal module provided by the invention, the light-emitting component is arranged in the support piece, the inner side surface of the bottom plate of the support piece is set as the reflecting surface, and the backlight uniformity of the liquid crystal module is realized through the reflection of the bottom plate to light without shadows, the number of screws required to be arranged on the back plate is reduced, and the attractiveness is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present invention;
FIG. 2 is a half-sectional view of an embodiment of a liquid crystal module of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
1 Module backboard 31 LED lamp
2 Diffusion plate 32 Transparent plate
3 Support piece 33 Containing groove
301 Supporting part 34 PCB board
302 Base plate 35 Silver reverse film
320 Glue dispensing
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a liquid crystal module.
In an embodiment of the present invention, as shown in fig. 1 to 3, the liquid crystal module includes:
a module backboard 1;
the diffusion plate 2 is arranged opposite to the module backboard 1;
the support 3 abuts between the module back plate 1 and the diffusion plate 2, the support 3 includes a support portion 301 and a bottom plate 302 connected to one end of the support portion 301, one end of the support portion 301 away from the bottom plate 302 abuts against the diffusion plate 2, an outer side surface of the bottom plate 302 is connected to the module back plate 1, and an inner side surface of the bottom plate 302 is a reflection surface;
a light emitting element having a light source disposed facing the bottom plate 302 such that the reflective surface reflects light to the diffusion plate 2.
In this embodiment, the light emitting element is opposite to the bottom plate 302, and the light emitting element can be connected to the bottom plate 302 or connected to the support 3 as long as the light emitting element is opposite to the bottom plate 302. The light emitted from the light emitting elements is directed to the inner side of the bottom plate 302 and reflected to the diffuser 2 to illuminate the diffuser 2, and the number of the supporting elements 3 may be multiple and is uniformly distributed between the module backplate 1 and the diffuser 2. The shape of the base plate 302 is not limited, but is preferably circular, and the light emitting assembly is disposed near the center of the base plate 302.
According to the liquid crystal module provided by the invention, the light-emitting component is arranged in the support 3, the inner side surface of the bottom plate 302 of the support 3 is set as the reflecting surface, and the uniform backlight and no shadow of the liquid crystal module are realized through the reflection of the bottom plate 302 to light, the number of screws required to be arranged on the back plate is reduced, and the attractiveness is improved.
Further, the inner side surface of the bottom plate 302 is in a mesh shape. In this embodiment, each dot is conical or hemispherical, the light is projected on the inclined surface or curved surface of the dot and reflected by the dot, the light beam is dispersed into a plurality of directions and uniformly emitted to the diffuser plate 2, so that the backlight uniformity of the liquid crystal module is realized.
Further, the supporting portion 301 is an open conical transparent plate 32, the open end of the conical transparent plate 32 is connected to the bottom plate 302, the tip of the conical transparent plate 32 is abutted to the diffusion plate 2, and the wall surface of the conical transparent plate 32 is frosted.
In this embodiment, since the tapered transparent plate 32 surrounds the bottom plate 302, the light reflected by the bottom plate 302 can all pass through the tapered transparent plate 32, the outer side surface and/or the inner side surface of the tapered transparent plate 32 are/is provided with frosted surfaces, and the light is further scattered when passing through the tapered transparent plate 32, and is emitted to the diffusion plate 2 more uniformly, and the light is softer. The support portion 301 may be a peripheral wall that is curved and faces the bottom plate 302, and light can be diffused. The tip of the tapered transparent plate 32 abuts against the diffusion plate 2, which is beneficial to reducing the light spots projected by the support 3 on the diffusion plate 2. The open edge of toper transparent plate 32 can be in the edge of bottom plate 302, also can be outside the edge of bottom plate 302, also can also be just the edge coincidence of bottom plate 302, and preferably, the open edge of toper transparent plate 32 coincides with the edge of bottom plate 302, is favorable to practicing thrift the material of bottom plate 302, is favorable to the reflection effect of make full use of bottom plate 302 medial surface simultaneously, reaches better backlight effect.
Further, the light emitting assembly includes a light transmitting plate connected to the supporting member 3 and opposite to the bottom plate 302, and an LED lamp 31 disposed on a side of the light transmitting plate facing away from the bottom plate 302 and connected thereto. In this embodiment, the transparent plate is used to support the LED lamp 31, and is preferably fixed to the tapered transparent plate 32 or the bottom plate 302.
Further, a containing groove matched with the LED lamp 31 is formed in the light-transmitting plate. In this embodiment, the LED lamp 31 is embedded in the accommodating groove, the accommodating groove has a limiting effect on the LED lamp 31, and the peripheral wall of the accommodating groove forms a light-transmitting wall of the LED, so that the light-transmitting area of the LED lamp 31 is increased, the light divergence range is increased, and the light is more uniform. Preferably, the thickness that the storage tank compares LED lamp 31 will be dark about 0.3mm, guarantees light incidence efficiency on the one hand, and on the other hand guarantees that LED does not contact the support.
Further, the PCB 34 of the light emitting assembly is electrically connected to the LED lamp 31 and disposed on a side of the LED lamp 31 away from the light transmitting plate. In this embodiment, the PCB 34 and the LED lamp 31 are stacked, which is beneficial for the direct electrical connection between the PCB 34 and the LED lamp 31, and the electrical connection wire is not exposed, which is beneficial for the aesthetic appearance of the structure and the fixation of the PCB 34. Preferably, the thickness of the PCB board 34 is 1mm or less.
Further, the edge of the PCB 34 protrudes out of the edge of the LED lamp 31, the PCB 34 protrudes out of the part of the LED lamp 31, a positioning column is arranged on the part of the LED lamp, and a positioning hole for the positioning column to be embedded is formed in the light-passing plate. In this embodiment, the positioning holes and the positioning posts cooperate to define the relative position of the PCB board 34 and the light-transmitting board. And the PCB 34 is provided with a bonding pad, and the PCB 34 and the light-transmitting plate are welded together.
Further, what PCB board 34 deviated from be equipped with the anti-membrane 35 of silver on the side of LED lamp 31, the edge protrusion of the anti-membrane 35 of silver the edge of PCB board 34, just the edge of the anti-membrane 35 of silver with light-passing board fixed connection.
In this embodiment, for the convenience of installation, the width of the transparent plate is generally greater than the width of the PCB 34, so that the light emitted by the LED lamp 31 easily passes through the transparent plate to emit out, resulting in light spots, and the silver reflective film 35 can block the light from passing through the transparent plate and emit out, and can reflect the light back.
Further, the transparent plate is annularly arranged along the inner wall surface of the conical transparent plate 32. In this embodiment, the PCB boards 34 of the LED lamp 31 box are all in a shape of a circular strip, and the center of the light-transmitting component is opposite to the center of the bottom board 302, so that the LED lamps 31 are distributed more uniformly, and the emitted light is more uniform.
Further, the tapered transparent plate 32 is formed with a step wall opposite to the bottom plate 302, and the step arm is formed as the transparent plate. In the present embodiment, the tapered transparent plate 32 is cut into two sections by the step wall, and the LED lamp 31 and the PCB 34 are disposed on the outer wall surface of the tapered transparent plate 32.
Furthermore, the supporting member 3 can be formed by a conventional injection molding process at one time, the processing is simple and rapid, and the structure of the molded product is stable.
Further, the bottom plate 302 and the liquid crystal back plate are connected by glue 320. In this embodiment, the glue 320 is used to fix the bottom plate 302 and the liquid crystal backplane, so that screws are not required to pass through the liquid crystal backplane fixing bottom plate 302 and the liquid crystal backplane, holes do not need to be formed in the liquid crystal backplane, the mounting is simple, and the liquid crystal backplane is not covered with screws to affect the appearance.
During assembly, the support piece 3 needs to be fixed on the liquid crystal back plate through glue dispensing 320, then the annular LED lamps 31 are accurately assembled on the step plane of the support piece 3 through positioning, and finally the silver reflection film 35 is used for fixing the LED lamps 31.
The present invention further provides a display device, which includes a liquid crystal module, and the specific structure of the liquid crystal module refers to the foregoing embodiments, and since the display device employs all technical solutions of all the foregoing embodiments, the display device at least has all beneficial effects brought by the technical solutions of the foregoing embodiments, and details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. A liquid crystal module, comprising:
a module backplane;
the diffusion plate is arranged opposite to the module back plate;
the support is abutted between the module back plate and the diffusion plate and comprises a support part and a bottom plate connected with one end of the support part, which is far away from the bottom plate, is abutted with the diffusion plate, the outer side surface of the bottom plate is connected with the module back plate, and the inner side surface of the bottom plate is a reflection surface;
a light emitting assembly, a light source of which is disposed facing the bottom plate so that the reflecting surface reflects light to the diffusion plate;
the supporting part is a conical transparent plate with one open side, the open end of the conical transparent plate is connected with the bottom plate, the tip end of the conical transparent plate is abutted to the diffusion plate, and the wall surface of the conical transparent plate is frosted;
the light-emitting component comprises a light-transmitting plate which is connected with the supporting piece and is opposite to the bottom plate, and an LED lamp which is arranged on one side of the light-transmitting plate, which deviates from the bottom plate, and is connected with the light-transmitting plate.
2. The liquid crystal module as claimed in claim 1, wherein the inner side surface of the bottom plate is in a dot shape.
3. The liquid crystal module as claimed in claim 1, wherein the transparent plate has a receiving groove formed thereon for accommodating the LED lamp.
4. The liquid crystal module as claimed in claim 1, wherein the PCB of the light emitting assembly is electrically connected to the LED lamp and the PCB is disposed on a side of the LED lamp opposite to the light transmissive plate;
the edge of PCB board protrusion the edge of LED lamp, just the PCB board protrusion the part epirelief of LED lamp is equipped with the reference column, set up on the light-passing board and supply the reference column inlays the locating hole of establishing.
5. The liquid crystal module of claim 4, wherein a side of the PCB plate facing away from the LED lamp is provided with a silver reflective film, an edge of the silver reflective film protrudes beyond an edge of the PCB plate, and the edge of the silver reflective film is fixedly connected with the light-transmitting plate.
6. The liquid crystal module as claimed in claim 1, wherein the transparent plate is disposed annularly along an inner wall surface of the tapered transparent plate.
7. The liquid crystal module as claimed in claim 6, wherein the tapered transparent plate is formed with a step wall opposite to the bottom plate, the step wall being formed as the transparent plate.
8. A display device comprising a liquid crystal module according to any one of claims 1 to 7.
CN201710732283.2A 2017-08-23 2017-08-23 Liquid crystal module and display device Active CN107561775B (en)

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Application Number Priority Date Filing Date Title
CN201710732283.2A CN107561775B (en) 2017-08-23 2017-08-23 Liquid crystal module and display device

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Application Number Priority Date Filing Date Title
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CN107561775B true CN107561775B (en) 2020-04-24

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108644647B (en) * 2018-07-16 2020-03-17 深圳创维-Rgb电子有限公司 Direct type backlight module and display

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006310640A (en) * 2005-04-28 2006-11-09 Sony Corp Light emitting diode, backlight device, and liquid crystal display device
JP2006344429A (en) * 2005-06-07 2006-12-21 Sony Corp Supporting body, backlight device, and liquid crystal display device
CN201351836Y (en) * 2009-01-24 2009-11-25 冠捷投资有限公司 Vertically-down backlight module
CN202056689U (en) * 2011-05-20 2011-11-30 京东方科技集团股份有限公司 Backlight source and display device
CN203797465U (en) * 2014-02-24 2014-08-27 合肥京东方显示光源有限公司 Backlight module and display device
CN104121551A (en) * 2013-04-26 2014-10-29 鸿富锦精密工业(深圳)有限公司 Optical element and backlight module with optical element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006310640A (en) * 2005-04-28 2006-11-09 Sony Corp Light emitting diode, backlight device, and liquid crystal display device
JP2006344429A (en) * 2005-06-07 2006-12-21 Sony Corp Supporting body, backlight device, and liquid crystal display device
CN201351836Y (en) * 2009-01-24 2009-11-25 冠捷投资有限公司 Vertically-down backlight module
CN202056689U (en) * 2011-05-20 2011-11-30 京东方科技集团股份有限公司 Backlight source and display device
CN104121551A (en) * 2013-04-26 2014-10-29 鸿富锦精密工业(深圳)有限公司 Optical element and backlight module with optical element
CN203797465U (en) * 2014-02-24 2014-08-27 合肥京东方显示光源有限公司 Backlight module and display device

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