CN114114757A - Large-size liquid crystal display module framework and assembling method - Google Patents
Large-size liquid crystal display module framework and assembling method Download PDFInfo
- Publication number
- CN114114757A CN114114757A CN202111519369.XA CN202111519369A CN114114757A CN 114114757 A CN114114757 A CN 114114757A CN 202111519369 A CN202111519369 A CN 202111519369A CN 114114757 A CN114114757 A CN 114114757A
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- Prior art keywords
- liquid crystal
- panel
- backlight
- crystal display
- module
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 19
- 239000011521 glass Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 15
- 239000012788 optical film Substances 0.000 claims description 12
- 210000002858 crystal cell Anatomy 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 7
- 239000004945 silicone rubber Substances 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/133325—Assembling processes
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a large-size liquid crystal display module framework which comprises a backlight module and a liquid crystal panel, wherein the backlight module and the liquid crystal panel are detachably connected, a circuit board (5) is detachably arranged on the back of the backlight module, and the circuit board (5) is electrically connected with the backlight module and the liquid crystal panel to control the operation of the backlight module and the liquid crystal panel. The large-size liquid crystal display module is simple in framework assembly, capable of effectively improving the reliability of the liquid crystal display module and convenient to assemble and maintain.
Description
Technical Field
The invention relates to the technical field of liquid crystal display product production and processing equipment, in particular to a large-size liquid crystal display module framework and an assembling method.
Background
The liquid crystal display module is widely applied to onboard equipment as an electronic display terminal product, and in the face of a continuously complex flying environment in the future, the cockpit display equipment needs to intensively display contents such as airplane navigation, terrain, airplane real-time state, targets and the like in the same window, and at the moment, large-size and integrated cockpit display equipment becomes a necessary development trend and can be widely applied to onboard cockpit display.
At present, a commonly used liquid crystal display module mainly comprises a liquid crystal display assembly, a backlight assembly, a structural member, a circuit control board and the like. In small-size liquid crystal display module, the LCD screen subassembly is through consolidating glass overlap joint all around on metal construction, and this kind of structure can only fill the reinforcement glue in the gap of consolidating glass side and structure, and to the great LCD module of size, this kind of reinforcement mode reliability is low, especially under the complicated environmental stress of machine-carried, very easily appears showing the defect.
Therefore, it is desirable to provide a new large-sized liquid crystal display module architecture to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a large-size liquid crystal display module framework which is simple to assemble, can effectively improve the reliability of a liquid crystal display module and is convenient to assemble and maintain.
In order to achieve the above object, the present invention provides a large-sized liquid crystal display module structure, which includes a backlight module and a liquid crystal panel that are detachably connected, wherein a circuit board is detachably installed on the back of the backlight module, and the circuit board is electrically connected with the backlight module and the liquid crystal panel to control the operation of the backlight module and the liquid crystal panel.
Preferably, the backlight module comprises a backlight frame, and the backlight assembly is detachably mounted in the cavity of the backlight frame.
Preferably, the backlight assembly is attached into the backlight frame cavity by a thermally conductive double sided adhesive.
Preferably, a middle cover plate is detachably mounted to a rear portion of the backlight frame, and the circuit board is detachably mounted to the middle cover plate.
Preferably, the middle cover plate is screwed to the backlight frame by screws.
Preferably, an optical film is further disposed in the cavity of the backlight frame.
Preferably, the optical film is potted on the backlight frame by silicone rubber.
Preferably, the liquid crystal panel comprises a panel and a liquid crystal box assembly, the liquid crystal box assembly is installed in the panel, the contact area of the front faces of the panel and the liquid crystal box assembly is filled with foam, and the gap between the side wall of the reinforcing glass in the liquid crystal box assembly and the panel is filled with silicon rubber.
Preferably, the panel is further provided with a pressing strip, the pressing strip and the panel form a C-shaped groove, the C-shaped groove is arranged to be capable of clamping the reinforced glass, and silicon rubber is encapsulated in a gap between the pressing strip and a liquid crystal screen in the liquid crystal box assembly.
The invention also provides an assembling method of the large-size liquid crystal display module framework, which comprises the following steps:
firstly, bonding a backlight lamp assembly in a backlight frame cavity by using a heat-conducting double-sided adhesive tape, and assembling a middle cover plate and a backlight frame by using screws;
secondly, encapsulating the optical film in a cavity of a backlight frame by using silicon rubber to form a backlight module;
then, assembling the liquid crystal box assembly into the panel, filling foam in the front contact area in advance, and encapsulating silicon rubber for reinforcing the gap between the side wall of the glass and the panel;
then, attaching foam on the pressing strip, assembling the pressing strip on the panel by using screws, enabling the pressing strip and the panel to form a C-shaped groove to clamp the reinforced glass of the liquid crystal box assembly, encapsulating silicon rubber in a gap between the pressing strip and the liquid crystal screen, and performing secondary reinforcement on the screen assembly to form the liquid crystal panel;
and finally, assembling the backlight module and the liquid crystal panel and assembling a circuit board to form a complete liquid crystal display module.
According to the technical scheme, the backlight module and the optical film are assembled on the backlight frame and fixed by the screws and the middle cover plate to form the backlight module; the liquid crystal box assembly is assembled in the panel, and the liquid crystal panel is formed by reinforcing and sealing the batten; the backlight module is assembled with the liquid crystal panel, and the circuit board is assembled on the preformed hole of the middle cover plate to form a complete liquid crystal display module. When the module needs to be maintained, the fixing screws of the liquid crystal panel and the backlight module are removed, and the two parts are separated and can be respectively maintained; if only the circuit board needs to be maintained, the circuit board only needs to be detached from the cover plate, the liquid crystal panel and the backlight module do not need to be separated, and the feasibility of assembly and maintenance is greatly improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
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 an assembly of a backlight assembly and a backlight frame according to the present invention;
FIG. 2 is a schematic view of the assembly of the cover plate and the backlight frame in the present invention;
FIG. 3 is a schematic structural diagram of a backlight module according to the present invention;
FIG. 4 is a schematic view of the assembly of a liquid crystal cell assembly and panel according to the present invention;
FIG. 5 is a schematic view of a liquid crystal panel according to the present invention;
FIG. 6 is a cross-sectional view of a liquid crystal panel in the present invention;
fig. 7 is a schematic view of the overall structure of the liquid crystal display module of the present invention.
Description of the reference numerals
1-backlight frame 2-backlight assembly
3-Heat-conducting double-sided adhesive tape 4-middle cover plate
5-Circuit Board 6-optical film
7-Silicone rubber 8-Panel
9-foam 10-reinforced glass
11-pressing bar 12-LCD screen
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "front, back" and the like included in the terms merely represent the orientation of the terms in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the terms.
The invention provides a large-size liquid crystal display module framework, which comprises a backlight module and a liquid crystal panel which are detachably connected, wherein a circuit board 5 is detachably arranged on the back of the backlight module, and the circuit board 5 is electrically connected with the backlight module and the liquid crystal panel to control the operation of the backlight module and the liquid crystal panel.
In the present embodiment, the backlight module includes a backlight frame 1, and a backlight assembly 2 is detachably mounted in a cavity of the backlight frame 1.
In the present embodiment, the backlight assembly 2 is adhered into the cavity of the backlight frame 1 by the thermally conductive double-sided adhesive tape 3.
In the present embodiment, the middle cover 4 is detachably mounted to the back of the backlight frame 1, and the circuit board 5 is detachably mounted to the middle cover 4.
In the present embodiment, the middle cover plate 4 is screwed to the backlight frame 1 by screws.
In the present embodiment, an optical film 6 is further provided in the cavity of the backlight frame 1.
In the present embodiment, the optical film 6 is potted on the backlight frame 1 through the silicone rubber 7.
In the present embodiment, the liquid crystal panel includes a panel 8 and a liquid crystal cell assembly, the liquid crystal cell assembly is installed in the panel 8, and a contact area of the front surfaces of the panel 8 and the liquid crystal cell assembly is filled with foam 9, and a gap between a side wall of a reinforcing glass 10 in the liquid crystal cell assembly and the panel 8 is filled with silicone rubber 7.
In the embodiment, a pressing strip 11 is further mounted on the panel, the pressing strip 11 and the panel 8 form a C-shaped groove, the C-shaped groove is arranged to be capable of clamping the reinforced glass 10, and a silicon rubber 7 is encapsulated in a gap between the pressing strip 11 and a liquid crystal screen 12 in the liquid crystal box assembly.
In addition, the invention also provides an assembling method of the large-size liquid crystal display module framework, which comprises the following steps:
firstly, as shown in fig. 1 and fig. 2, a backlight assembly 2 is adhered in a cavity of a backlight frame 1 by a heat conducting double-sided adhesive tape 3, and a middle cover plate 4 and the backlight frame 1 are assembled by screws;
secondly, as shown in fig. 3, the optical film 6 is encapsulated in the cavity of the backlight frame 1 by the silicon rubber 7 to form a backlight module;
next, as shown in fig. 4, the liquid crystal cell assembly is assembled into the panel 8, the foam 9 is filled in the front contact area in advance, and the gap between the side wall of the reinforcing glass 10 and the panel 8 is filled with silicone rubber 7 for reinforcement;
then, as shown in fig. 5 and 6, attaching foam 9 on the bead 11, assembling the bead 11 on the panel 8 by using screws, so that the bead 11 and the panel 8 form a C-shaped groove to clamp the reinforced glass 10 of the liquid crystal cell assembly, encapsulating silicon rubber 7 in a gap between the bead 11 and the liquid crystal screen 12, and performing secondary reinforcement on the screen assembly to form a liquid crystal panel;
finally, as shown in fig. 7, the backlight module and the liquid crystal panel are assembled and mounted on the circuit board 5 to form a complete liquid crystal display module.
Through the technical scheme, the backlight module and the optical film are assembled on the backlight frame 1 and fixed by the screws and the middle cover plate 4 to form the backlight module; the liquid crystal box assembly is assembled in the panel 8, and is reinforced and sealed by a batten 11 to form a liquid crystal panel; the backlight module is assembled with the liquid crystal panel, and the circuit board 5 is assembled on the preformed hole of the middle cover plate 4 to form a complete liquid crystal display module. When the module needs to be maintained, the fixing screws of the liquid crystal panel and the backlight module are removed, and the two parts are separated and can be respectively maintained; if only the circuit board 5 needs to be maintained, only the circuit board 5 needs to be detached from the middle cover plate 4, and the liquid crystal panel and the backlight module do not need to be separated, so that the feasibility of assembly and maintenance is greatly improved.
Meanwhile, the invention has simple structure and convenient operation, improves the reliability of the large-size liquid crystal display module and reduces the probability of display faults in environmental tests.
Furthermore, the liquid crystal display panel and the backlight module are subjected to modular design, so that the universality and interchangeability of products with the same type of size are improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The large-size liquid crystal display module framework is characterized by comprising a backlight module and a liquid crystal panel which are detachably connected, wherein a circuit board (5) is detachably mounted at the back of the backlight module, and the circuit board (5) is electrically connected with the backlight module and the liquid crystal panel to control the backlight module and the liquid crystal panel to operate.
2. The architecture of a large-scale liquid crystal display module according to claim 1, wherein the backlight module comprises a backlight frame (1), and a backlight assembly (2) is detachably mounted in a cavity of the backlight frame (1).
3. The large-scale lcd module architecture according to claim 2, characterized in that the backlight assembly (2) is bonded into the backlight frame (1) cavity by means of a double-sided thermal adhesive (3).
4. The large-sized liquid crystal display module architecture according to claim 2, wherein the back of the backlight frame (1) is detachably mounted with a middle cover plate (4), and the circuit board (5) is detachably mounted on the middle cover plate (4).
5. The large-sized liquid crystal display module architecture according to claim 4, wherein the middle cover plate (4) is screwed to the backlight frame (1) by screws.
6. The architecture of large-scale LCD module as claimed in claim 2, wherein the optical film (6) is further disposed in the cavity of the backlight frame (1).
7. The large-scale LCD module architecture according to claim 6, characterized in that the optical film (6) is potted on the backlight frame (1) by silicone rubber (7).
8. The architecture of a large-size liquid crystal display module according to claim 1, wherein the liquid crystal panel comprises a panel (8) and a liquid crystal cell assembly, the liquid crystal cell assembly is installed in the panel (8), the contact area of the front surfaces of the panel and the liquid crystal cell assembly is filled with foam (9), and the gap between the side wall of the reinforcing glass (10) in the liquid crystal cell assembly and the panel (8) is filled with silicon rubber (7).
9. The architecture of claim 8, wherein the panel is further provided with a bead (11), the bead (11) and the panel (8) form a C-shaped groove, the C-shaped groove is configured to clamp the reinforced glass (10), and a gap between the bead (11) and the liquid crystal screen (12) in the liquid crystal box assembly is filled with silicone rubber (7).
10. A method for assembling a large-sized liquid crystal display module according to any one of claims 1-9, wherein the method comprises:
firstly, adhering a backlight lamp assembly (2) in a cavity of a backlight frame (1) by using a heat-conducting double-sided adhesive tape (3), and assembling a middle cover plate (4) and the backlight frame (1) by using screws;
secondly, encapsulating the optical film (6) in a cavity of the backlight frame (1) by using silicon rubber (7) to form a backlight module;
then, assembling the liquid crystal box assembly into a panel (8), filling foam (9) in the front contact area in advance, and reinforcing the side wall of the reinforcing glass (10) and the gap of the panel (8) by encapsulating silicon rubber (7);
then, attaching foam (9) on the pressing strip (11), assembling the pressing strip (11) on the panel (8) by using screws, enabling the pressing strip (11) and the panel (8) to form a C-shaped groove for clamping the reinforced glass (10) of the liquid crystal box assembly, encapsulating silicon rubber (7) in a gap between the pressing strip (11) and the liquid crystal screen (12), and carrying out secondary reinforcement on the screen assembly to form a liquid crystal panel;
and finally, assembling the backlight module and the liquid crystal panel and assembling a circuit board (5) to form a complete liquid crystal display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111519369.XA CN114114757A (en) | 2021-12-13 | 2021-12-13 | Large-size liquid crystal display module framework and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111519369.XA CN114114757A (en) | 2021-12-13 | 2021-12-13 | Large-size liquid crystal display module framework and assembling method |
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| Publication Number | Publication Date |
|---|---|
| CN114114757A true CN114114757A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111519369.XA Pending CN114114757A (en) | 2021-12-13 | 2021-12-13 | Large-size liquid crystal display module framework and assembling method |
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