CN114019711A - Straight following formula liquid crystal module and display device - Google Patents
Straight following formula liquid crystal module and display device Download PDFInfo
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- CN114019711A CN114019711A CN202111397755.6A CN202111397755A CN114019711A CN 114019711 A CN114019711 A CN 114019711A CN 202111397755 A CN202111397755 A CN 202111397755A CN 114019711 A CN114019711 A CN 114019711A
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- crystal module
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 81
- 239000011521 glass Substances 0.000 claims abstract description 35
- 238000009792 diffusion process Methods 0.000 claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 abstract description 16
- 230000002159 abnormal effect Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
- G02F1/133553—Reflecting elements
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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)
- Liquid Crystal (AREA)
Abstract
The invention discloses a direct type liquid crystal module and a display device, wherein the direct type liquid crystal module comprises: the frame assembly is sequentially provided with liquid crystal glass, a membrane, a diffusion plate and a side reflection sheet from front to back; the backboard is detachably connected with the frame component, and a light source component and a bottom surface reflector plate are arranged on the backboard. According to the invention, the frame assembly is detachably connected with the back plate, the side surface reflector plate, the liquid crystal glass, the membrane and the diffusion plate are all arranged on the frame assembly, and the bottom surface reflector plate and the light source assembly are arranged on the back plate, so that when the light source assembly is abnormal or abnormal exists in the cavity of the direct type liquid crystal module, reworking can be carried out only by detaching and separating the frame assembly from the back plate without disassembling materials such as the liquid crystal glass and the membrane, and the reworking loss materials are reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a direct type liquid crystal module and a display device.
Background
Currently, liquid crystal modules are classified into edge type liquid crystal modules and direct type liquid crystal modules according to different light emitting modes. The backlight source of the traditional direct type liquid crystal module mainly comprises a back plate, an LED lamp bar, a reflector plate, a diffusion plate, an optical film, a face frame and the like. The light emitting principle is that the LED lamps arranged on the bottom surface of the back plate disperse light into various angles through the lenses to be emitted, the light source is upwards reflected through the reflecting sheets at the bottom and the side edges, the backlight source is uniformly mixed through a certain light mixing distance (OD), the diffusing plate and the diaphragm are arranged above the reflecting sheets, the point light source which is backlight is further atomized and shielded, and a uniform surface light source is formed.
In the traditional liquid crystal module structure, the edge of a reflector plate is bent and integrally attached to a back plate; after optical materials such as a diffusion plate, a diaphragm and the like are placed on the back plate, a plastic middle frame is needed to limit the optical materials such as the diaphragm and the like, the plastic middle frame is generally fixed on a folded edge of the back plate through structure matching such as buckles, and then the liquid crystal glass, the plastic middle frame and the back plate are fixed by the U-shaped face frame outside the plastic middle frame; the liquid crystal glass is fixed on the plastic middle frame by foam double-sided adhesive tape or fixed to press the glass by a U-shaped section face frame locking screw.
In the production process, the poor performance of the traditional direct type liquid crystal module in the backlight aspect is mainly that the LED lamp is abnormal, the connection wire of the LED lamp strip is not inserted in place, the arrangement form of the side reflector plate is not in accordance with the requirement, foreign matters exist in the backlight cavity of the module, and the processing scheme of the abnormal problems needs to replace the lamp strip, the reflector plate and other materials or perform cavity cleaning treatment after the liquid crystal module is disassembled in a reworking way. According to the structure of present traditional straight following formula LCD module, the step of doing over again does in proper order: disassemble the face frame, disassemble liquid crystal glazing, disassemble the center, remove materials such as diffuser plate and diaphragm, tear off the reflector plate, demolish the lamp strip, disassemble glass in this process and can lead to pasting the cotton double faced adhesive tape damage of liquid crystal glazing and scrap, tear off the reflector plate and can lead to whole reflector plate damage or fold and unable reutilization, consequently, present straight following formula liquid crystal module reworks the cost higher.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention provides a direct type liquid crystal module and a display device, aiming at overcoming the defects of the prior art and solving the problem that the rework cost is high due to the fact that a reflector needs to be torn off and materials such as liquid crystal glass and a membrane need to be disassembled when a liquid crystal module in the prior art is reworked.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a direct type liquid crystal module includes:
the frame assembly is sequentially provided with liquid crystal glass, a membrane, a diffusion plate and a side reflection sheet from front to back;
the backboard is detachably connected with the frame component, and a light source component and a bottom surface reflector plate are arranged on the backboard.
Straight following formula LCD module, wherein, the frame subassembly includes:
the face frame is detachably connected with the back plate;
the middle frame is detachably connected with the back plate and is positioned at the opening of the face frame.
The straight following formula LCD module, wherein, the face frame orientation one side of backplate is equipped with first draw-in groove, the backplate includes:
a bottom plate portion located at a rear side of the face frame;
the side edge part is arranged along the edge of the bottom plate part, the side edge part is positioned on one side, facing the face frame, of the bottom plate part, and the side edge part is clamped and embedded in the first clamping groove.
The direct type liquid crystal module is characterized in that the face frame is fixedly connected with the back plate through screws, a threaded hole is formed in one side, facing the back plate, of the face frame, a first through hole corresponding to the threaded hole is formed in the back plate, and the screws penetrate through the first through hole and are connected with the threaded hole.
The direct type liquid crystal module is characterized in that an inclined surface is arranged on the face frame, the inclined surface is positioned on one side, back to the back plate, of the face frame, the side reflection sheet is adhered to the inclined surface, and one side, close to the back plate, of the side reflection sheet is lapped on the bottom reflection sheet.
The direct type liquid crystal module is characterized in that a second clamping groove is formed in the face frame, faces towards the inner side of the face frame, is located on one side, away from the back plate, of the inclined plane, and the diaphragm and the diffusion plate are clamped in the second clamping groove.
The direct type liquid crystal module is characterized in that a supporting part is arranged on the face frame, the supporting part is located on one side, back to the inclined plane, of the second clamping groove, and the supporting part is used for being connected with the liquid crystal glass.
The direct type liquid crystal module is characterized in that one side, facing the back plate, of the face frame is provided with an accommodating groove, and the edge of the bottom surface reflector plate is clamped and embedded in the accommodating groove.
The direct type liquid crystal module is characterized in that a plurality of second through holes are formed in the middle frame at intervals, a plurality of buckles are arranged on one side, facing the middle frame, of the back plate at intervals, the buckles are in one-to-one correspondence with the second through holes, and the buckles are embedded in the corresponding second through holes to be connected with the middle frame and the back plate.
A display device comprises the direct type liquid crystal module.
Has the advantages that: according to the invention, the frame assembly is detachably connected with the back plate, the side reflector plate, the liquid crystal glass, the membrane and the diffusion plate are arranged on the frame assembly, and the bottom reflector plate and the light source assembly are arranged on the back plate, so that when the light source assembly is abnormal or abnormal exists in the cavity of the direct type liquid crystal module, the frame assembly and the back plate can be reworked only by being detached and separated without tearing the reflector plate and disassembling materials such as the liquid crystal glass and the membrane, the reworking loss materials are reduced, and the reworking cost is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a direct type liquid crystal module according to the present invention;
FIG. 2 is an exploded view of the direct type liquid crystal module according to the present invention;
FIG. 3 is a schematic view of the assembly of the back plate and the face frame provided by the present invention;
FIG. 4 is a schematic view of the assembly of the middle frame, the face frame and the back plate according to the present invention;
the labels in the figures are: 1. a frame component; 11. a face frame; 12. a middle frame; 2. a back plate; 21. a bottom plate portion; 22. a side edge portion; 3. liquid crystal glass; 4. a membrane; 5. a diffusion plate; 6. a side reflector sheet; 7. a light source assembly; 71. an LED light bar; 8. a bottom surface reflector sheet; 9. a first card slot; 10. an inclined surface; 101. a first sub-slope; 102. a second sub-slope; 103. a third sub-slope; 13. a second card slot; 14. a support portion; 15. an accommodating space; 16. accommodating grooves; 17. a screw; 18. a threaded hole; 19. buckling; 20. a flexible wiring board.
Detailed Description
The present invention provides a direct type liquid crystal module and a display device, and in order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should also be noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention will be further explained by the description of the embodiments with reference to the drawings.
The embodiment provides a direct type liquid crystal module and a display device, as shown in fig. 1-2, the direct type liquid crystal module includes a frame assembly 1 and a back plate 2, the back plate 2 is disposed on one side of the frame assembly 1, and is detachably connected to the frame assembly 1; the liquid crystal glass 3, the membrane 4, the diffusion plate 5 and the side reflection sheet 6 are sequentially arranged on the frame component 1 from front to back, the liquid crystal glass 3, the membrane 4 and the diffusion sheet are all arranged in the center of the frame component 1, and the circumferential edges of the liquid crystal glass, the membrane 4 and the diffusion sheet are clamped and embedded on the frame component 1; the side reflection sheet 6 is adhered to the inner side of the frame assembly 1 and is obliquely arranged; the back plate 2 is provided with a light source assembly 7 and a bottom surface reflector 8, the light source assembly 7 is fixed on the back plate 2, and the bottom surface reflector 8 is adhered to the back plate 2; the bottom surface reflector 8 is provided with a plurality of through holes for the lamp beads of the light source assembly 7 to pass through, so that the bottom surface reflector 8 and the light source assembly 7 can be well fixed on the back plate 2 without mutual interference.
The bottom surface reflector plate 8 and the side surface reflector plate 6 jointly form the reflector plate of the direct type liquid crystal module, and the bottom surface reflector plate 8 and the side surface reflector plate 6 are respectively and separately arranged on the back plate 2 and the frame assembly 1, so that the frame assembly 1 and the back plate 2 can be directly disassembled and separated without interference of the bottom surface reflector plate 8 and the side surface reflector plate 6.
According to the invention, the frame assembly 1 and the back plate 2 are detachably connected, the side surface reflector 6, the liquid crystal glass 3, the membrane 4 and the diffusion sheet are all arranged on the frame assembly 1, and the bottom surface reflector 8 and the light source assembly 7 are arranged on the back plate 2, so that when the light source assembly 7 is abnormal or the cavity of the direct type liquid crystal module is abnormal, the frame assembly 1 and the back plate 2 can be disassembled and separated for rework treatment without disassembling materials such as the liquid crystal glass 3 and the membrane 4, and the material loss caused by rework is reduced.
The side frame assembly 1 includes a surface frame 11 and a middle frame 12, for example, the surface frame 11 is a profile surface frame 11 formed by aluminum extrusion, the middle frame 12 is a plastic middle frame 12, and the surface frame 11 may also be formed into the plastic surface frame 11 by white plastic injection molding, which is not limited in this embodiment; the face frame 11 is detachably connected with the back plate 2; the middle frame 12 is also detachably connected with the back plate 2, and the middle frame 12 is positioned at the opening of the face frame 11; in a specific embodiment, the face frame 11 is U-shaped, that is, the face frame 11 is U-shaped formed by three sides located on the left side, the upper side and the right side, and the middle frame 12 is located on the lower side and is connected with the face frame 11 end to form the side frame assembly 1. The face frame 11, the middle frame 12 and the back plate 2 form a centrally located accommodating space 15, the liquid crystal glass 3, the membrane 4 and the diffusion plate 5 are all located in the accommodating space 15, and the circumferential edges of the liquid crystal glass 3, the membrane 4 and the diffusion plate 5 are all connected to one side of the face frame 11 facing the accommodating space 15; the side reflection sheet 6 is located on a side of the face frame 11 facing the accommodating space 15.
A first clamping groove 9 is formed in one side, facing the back plate 2, of the face frame 11, the back plate 2 comprises a bottom plate portion 21 and a side edge portion 22, the bottom plate portion 21 is located on the rear side of the face frame 11, and the bottom plate portion 21 is parallel to the liquid crystal glass 3; the side part 22 is disposed along the edge of the bottom plate part 21, the side part 22 is located on the side of the bottom plate part 21 facing the face frame 11, the side part 22 is folded back toward the side of the face frame 11 relative to the bottom plate part 21, and preferably, the side part 22 is perpendicular to the bottom plate part 21; the side edge part 22 is clamped and embedded in the first clamping groove 9, so that the back plate 2 is clamped and connected with the face frame 11; since the face frame 11 is formed of three sides, the three side portions 22 of the back plate 2 located on the upper side, the left side, and the right side are engaged with three sides of the face frame 11. The width of the first slot 9 near the opening is larger, so that the side edge 22 can be clamped into the first slot 9 during assembly; the width of the first engaging groove 9 away from the opening is smaller to match the thickness of the side portion 22, so as to ensure the stability of the side portion 22 being engaged with the first engaging groove 9.
As shown in fig. 3, the face frame 11 and the back plate 2 are further fixed by a plurality of screws 17, so as to further improve the connection firmness between the back plate 2 and the face frame 11, and facilitate the disassembly of the back plate 2 and the face frame 11 when rework and maintenance are needed. Specifically, face frame 11 orientation one side interval of backplate 2 is provided with a plurality of screw hole 18, be provided with the first through-hole of a plurality of, a plurality of on the edge on upside, the left side and the right side of bottom plate portion 21 screw hole 18 and a plurality of first through-hole one-to-one, screw 17 passes first through-hole and connects screw hole 18, in order to connect backplate 2 with face frame 11.
The face frame 11 has an inclined surface 10, the inclined surface 10 is located on a side of the face frame 11 facing away from the back plate 2, and the inclined surface 10 is located on a side of the face frame 11 facing the accommodating space 15. The side reflective sheet 6 is adhered to the inclined surface 10, and one side of the side reflective sheet 6 close to the back plate 2 is lapped on the bottom reflective sheet 8, that is, the side reflective sheet 6 is not fixedly connected with the bottom reflective sheet 8, but only the side reflective sheet 6 is lapped on the bottom reflective sheet 8, so that the side reflective sheet 6 and the bottom reflective sheet 8 do not affect the detachment when the face frame 11 is detached from the back plate 2.
The inclined surface 10 comprises a plurality of sub-inclined surfaces which are sequentially arranged from the top end to the bottom of the inclined surface 10 at intervals, and the sub-inclined surfaces are in the same plane; in a specific embodiment, the inclined plane 10 includes 3 sub-inclined planes, and the top to the bottom of the inclined plane 10 are sequentially a first sub-inclined plane 101, a second sub-inclined plane 102 and a third sub-inclined plane 103, generally, the side reflection sheet 6 is adhered to the first sub-inclined plane 101, the second sub-inclined plane 102 and the third sub-inclined plane 103 at the same time, so as to ensure the firmness of adhesion of the side reflection sheet 6. Of course, in the case that the structure of the inclined surface 10 is not changed, the side reflection sheet 6 may be selected whether to be adhered to all of the three sub-inclined surfaces according to its own width.
Specifically, the inclination degree of the side reflection sheet 6 affects the brightness degree of the light reflection, the steeper the gradient of the side reflection sheet 6 is, the brighter the reflected light is, and conversely, the slower the gradient of the side reflection sheet 6 is, the darker the reflected light is, therefore, in order to adjust the brightness degree of the reflection line, it is necessary to adjust the inclination degree of the side reflection sheet 6, and when the gradient of the side reflection sheet 6 needs to be adjusted more slowly due to the edge light being too bright, the width of the side reflection sheet 6 is widened such that the gradient of the side reflection sheet 6 is more gradually reduced in the case that the height of the inclined surface 10 is constant, but since the width of the side reflection sheet 6 is widened, the side of the reflection sheet far from the diffusion plate 5 is extended to a further distance in the accommodation space 15 to overlap with the bottom reflection sheet 8, in order to smoothly transition the side reflection sheet 6 from forward to backward to overlap with the bottom reflection sheet 8, the side reflective sheet 6 is prevented from being excessively bent to form creases or wrinkles, so that the side reflective sheet 6 is only connected with the first sub inclined surface 101, or only connected with the first sub inclined surface 101 and the second sub inclined surface 102, and the side reflective sheet 6 is separated from the inclined surface 10 and smoothly transits to the bottom to be overlapped with the bottom reflective sheet 8. In this embodiment, the side surface reflection sheet 6 and the bottom surface reflection sheet 8 are separately disposed, so that the width of the side surface reflection sheet 6 can be flexibly adjusted to adjust the gradient thereof, and the amount of dark light at the edge of the backlight source can be further adjusted. In addition, when the edge light is still too bright after the gradient of the side reflector 6 is adjusted, the reflectivity can be reduced by adding silk-screen printing ink on the side reflector 6 to reduce the brightness.
The inclined surface 10 of the middle frame 12 may be provided with no side reflective sheet 6, and light may be reflected by spraying white paint instead of the side reflective sheet 6, so as to further reduce material cost and simplify process assembly flow.
A second clamping groove 13 is formed in the face frame 11, and the second clamping groove 13 faces the inner side of the face frame 11, that is, an opening of the second clamping groove 13 faces the accommodating space 15; the second engaging groove 13 is located on a side of the inclined surface 10 away from the housing 2, edges of the diaphragm 4 and the diffusion plate 5 are engaged with the second engaging groove 13, the diaphragm 4 and the diffusion plate 5 are disposed in front and back, that is, the diaphragm 4 is located on a side of the diffusion plate 5 facing away from the housing 2. The diffusion plate 5 and the membrane 4 are used for further atomizing and shielding light emitted by the light source assembly 7 and emitted by the bottom surface reflector 8 and the side surface reflector 6 to form a uniform surface light source, wherein the distance between the upper surface of the PCB of the light source assembly 7 and the diffusion plate 5 is a light mixing distance, and within a certain range, the larger the light mixing distance is, the more uniform the LED light path is, and the better the visual effect is. In this embodiment, the light mixing distance may be adjusted by adjusting the thickness of the face frame 11 or adjusting the distance between the second card slot 13 and the back plate 2.
The face frame 11 is provided with a support portion 14, the support portion 14 is located on a side of the second card slot 13 opposite to the inclined surface 10, and the support portion 14 is used for placing the liquid crystal glass 3, that is, the upper side, the left side, and the right side of the liquid crystal glass 3 are placed on the support portion 14 and connected with the support portion 14 to fix the liquid crystal glass 3, so that the liquid crystal glass 3 and the diffusion plate 5 are kept parallel. Further, a double-sided adhesive tape may be disposed between the support portion 14 and the liquid crystal glass 3 to adhesively fix the liquid crystal glass 3 on the support portion 14.
An accommodating groove 16 is formed in one side, facing the back plate 2, of the face frame 11, and the edge of the bottom reflector plate 8 is clamped and embedded in the accommodating groove 16; because after the back plate 2 is fixedly connected with the back surface of the face frame 11, the edge of the bottom plate portion 21 tightly abuts against the back side surface of the face frame 11, and the bottom surface reflector plate 8 is arranged on the bottom plate portion 21, the edge portion of the bottom surface reflector plate 8 is accommodated by the accommodating groove 16, and meanwhile, the edge portion of the bottom surface reflector plate 8 is embedded in the accommodating groove 16, so that the bottom surface reflector plate 8 can be prevented from tilting.
Among the side edge portions 22 of the back panel 2, the side edge portion 22 positioned on the lower side is engaged with the center frame 12, that is, the side edge portion 22 corresponding to the notch of the face frame 11 is engaged with the center frame 12; specifically, a plurality of second through holes are arranged on the middle frame 12 at intervals, as shown in fig. 4, a plurality of buckles 19 are arranged on one side of the back plate 2 facing the middle frame 12 at intervals, the plurality of buckles 19 correspond to the plurality of second through holes one to one, and the buckles 19 are embedded in the corresponding second through holes to connect the middle frame 12 and the back plate 2. Since the middle frame 12 is fixed to the back panel 2, both ends of the middle frame 12 and both ends of the face frame 11 may be simply abutted or separated without being connected.
The side of the middle frame 12 facing the accommodating space 15 is also provided with an inclined surface 10 to adhere the side reflection sheet 6, of course, the inclined surface 10 on the middle frame 12 may not be provided with the side reflection sheet 6, but reflects light by spraying white paint to replace the side reflection sheet 6, so as to further reduce material cost and simplify the process assembly flow.
The light source assembly 7 comprises a plurality of LED light bars 71 arranged on the bottom plate part 21, and the LED light bars 71 are parallel to each other; the LED light bar 71 comprises a PCB and a plurality of lamp beads arranged at intervals along the length direction of the PCB; the bottom plate part 21 is also provided with a plurality of supporting pieces for supporting the diffusion plate 5 and the membrane; the bottom surface reflector 8 is provided with a plurality of through holes arranged in a matrix, so that the lamp beads and the supporting pieces can penetrate through the through holes.
The lower side of the liquid crystal glass 3 is connected with a flexible circuit board 20, and the flexible circuit board 20 is used for driving the liquid crystal glass 3 to display; when the flexible printed circuit board is normally installed, the flexible printed circuit board 20 is located on one side of the middle frame 12, which faces away from the accommodating space 15; since the flexible printed circuit board 20 is flexible and can be folded, the flexible printed circuit board 20 does not affect the detachment and installation of the middle frame 12.
When the light source assembly 7 is abnormal or the accommodating space 15 of the direct-type liquid crystal module is abnormal, the middle frame 12 may be detached from the back plate 2, and then the face frame 11 may be detached from the back plate 2, so that the light source assembly 7 may be directly reworked without detaching the liquid crystal glass 3, the membrane 4 and the diffusion plate 5, and of course, since the middle frame 12 and the face frame 11 are separately disposed, the middle frame 12 may not be detached from the back plate 2, but the face frame 11 and the back plate 2 may be directly detached; and because the bottom surface reflector plate 8 and the side surface reflector plate 6 are separately arranged, the middle frame 12 and the back plate 2 do not need to be detached after the bottom surface reflector plate 8 or the side surface reflector plate 6 is torn down, so that the disassembling process is simplified, and the loss of materials is avoided.
In summary, the present invention discloses a direct type liquid crystal display module and a display device, wherein the direct type liquid crystal display module includes: the frame assembly is sequentially provided with liquid crystal glass, a membrane, a diffusion plate and a side reflection sheet from front to back; the backboard is detachably connected with the frame component, and a light source component and a bottom surface reflector plate are arranged on the backboard. According to the invention, the frame assembly is detachably connected with the back plate, the side surface reflector plate, the liquid crystal glass, the membrane and the diffusion plate are all arranged on the frame assembly, and the bottom surface reflector plate and the light source assembly are arranged on the back plate, so that when the light source assembly is abnormal or abnormal exists in the cavity of the direct type liquid crystal module, reworking can be carried out only by detaching and separating the frame assembly from the back plate without disassembling materials such as the liquid crystal glass and the membrane, and the reworking loss materials are reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A direct type liquid crystal module is characterized by comprising:
the frame assembly is sequentially provided with liquid crystal glass, a membrane, a diffusion plate and a side reflection sheet from front to back;
the backboard is detachably connected with the frame component, and a light source component and a bottom surface reflector plate are arranged on the backboard.
2. The direct type liquid crystal module according to claim 1, wherein the frame assembly comprises:
the face frame is detachably connected with the back plate;
the middle frame is detachably connected with the back plate and is positioned at the opening of the face frame.
3. The direct type liquid crystal module according to claim 2, wherein a first slot is disposed on a side of the face frame facing the back plate, and the back plate comprises:
a bottom plate portion located at a rear side of the face frame;
the side edge part is arranged along the edge of the bottom plate part, the side edge part is positioned on one side, facing the face frame, of the bottom plate part, and the side edge part is clamped and embedded in the first clamping groove.
4. The direct type liquid crystal module according to claim 2, wherein the face frame is fixedly connected to the back plate by screws, a threaded hole is formed in a side of the face frame facing the back plate, a first through hole corresponding to the threaded hole is formed in the back plate, and the screws penetrate through the first through hole and are connected to the threaded hole.
5. The direct type liquid crystal module as claimed in claim 2, wherein the face frame has an inclined surface, the inclined surface is located on a side of the face frame opposite to the back plate, the side reflection sheet is adhered to the inclined surface, and a side of the side reflection sheet close to the back plate is overlapped on the bottom reflection sheet.
6. The direct type liquid crystal module as claimed in claim 5, wherein the face frame has a second slot, the second slot faces the inner side of the face frame, the second slot is located on a side of the inclined surface away from the back plate, and the diaphragm and the diffuser plate are both engaged with the second slot.
7. The direct type liquid crystal module as claimed in claim 6, wherein a support portion is disposed on the surface frame, the support portion is disposed on a side of the second slot opposite to the inclined surface, and the support portion is used for connecting the liquid crystal glass.
8. The direct type liquid crystal module as claimed in claim 2, wherein a receiving groove is formed on a side of the bezel facing the back plate, and an edge of the bottom reflector is engaged with the receiving groove.
9. The direct-type liquid crystal module as claimed in claim 2, wherein a plurality of second through holes are spaced on the middle frame, a plurality of fasteners are spaced on a side of the back plate facing the middle frame, the plurality of fasteners are corresponding to the plurality of second through holes, and the fasteners are engaged with the corresponding second through holes.
10. A display device comprising the direct type liquid crystal module according to any one of claims 1 to 9.
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| CN115469482A (en) * | 2022-09-23 | 2022-12-13 | 江苏毅昌科技有限公司 | Backlight module, assembling method and body-building mirror |
| CN116300199A (en) * | 2023-02-01 | 2023-06-23 | 高创(苏州)电子有限公司 | Display panel and display device |
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| CN114019711B (en) | 2024-03-12 |
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