CN104698659B - Liquid crystal display die set and its assemble method - Google Patents
Liquid crystal display die set and its assemble method Download PDFInfo
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- CN104698659B CN104698659B CN201510122398.0A CN201510122398A CN104698659B CN 104698659 B CN104698659 B CN 104698659B CN 201510122398 A CN201510122398 A CN 201510122398A CN 104698659 B CN104698659 B CN 104698659B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- 239000002390 adhesive tape Substances 0.000 claims description 55
- 230000002093 peripheral effect Effects 0.000 claims description 31
- 230000001681 protective effect Effects 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 8
- 239000012788 optical film Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
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- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- G02F1/133308—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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
-
- 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
- G02F1/133308—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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
A kind of liquid crystal display die set, including liquid crystal panel, the first polaroid, optical diaphragm group and glue frame, glue frame is arranged on the periphery of optical diaphragm group, there is gap between glue frame and optical diaphragm group, for first polarizer sheet sticking on a side surface of the liquid crystal panel towards glue frame, the first polaroid is provided with shading rubber belt, is integral type structure between shading rubber belt and the first polaroid, surrounding of the shading rubber belt along the first polaroid is arranged to hollow, and shading rubber belt is located at the top in glue frame and gap.First polaroid and shading rubber belt are formed integrally formula structure by the present invention, and technique is simple, can improve the aligning accuracy between shading rubber belt, ensure there are enough overlapping areas between shading rubber belt and the first polaroid to provide more preferable shaded effect.
Description
Technical Field
The present invention relates to the field of liquid crystal display technologies, and in particular, to a liquid crystal display module and an assembling method thereof.
Background
A Liquid Crystal display Module (LCM) is an important component of a Liquid Crystal display. The liquid crystal display module comprises a liquid crystal panel and a backlight module, wherein the backlight module is mainly formed by assembling a back plate, a reflecting plate, a light guide plate, an optical film group, a rubber frame and the like, the reflecting plate, the light guide plate, the optical film group and the rubber frame are all accommodated in an accommodating space formed by the back plate, the liquid crystal panel is adhered and fixed to the backlight module through a square-shaped adhesive to form the liquid crystal display module, and the square-shaped adhesive is used for fixing the liquid crystal panel, preventing dust and covering light leakage around the backlight module.
The assembly process of the existing liquid crystal display module is as follows: firstly, a liquid crystal panel and a backlight module are provided, wherein the lower surface of the liquid crystal panel is attached with a first polaroid, a circle of glue is attached to a glue frame of the backlight module, and then the liquid crystal panel is attached and fixed to the glue frame. However, along with the narrowing and thinning of the product specification, the distance between the first polarizer and the edge of the liquid crystal panel is difficult to control, and the attaching precision of the glue on the glue frame is difficult to control, so that the alignment precision between the first polarizer of the liquid crystal panel and the glue is low, it is difficult to ensure that a sufficient overlapping area exists between the first polarizer and the glue, the light leakage phenomenon is easily generated at the edge of the liquid crystal display module, and the normal use is influenced.
Disclosure of Invention
The invention aims to provide a liquid crystal display module and an assembling method thereof, which can improve the problem of light leakage at the edge of the liquid crystal display module.
The invention provides a liquid crystal display module, which comprises a liquid crystal panel, a first polaroid, an optical membrane group and a rubber frame, wherein the rubber frame is arranged at the periphery of the optical membrane group, a gap is formed between the rubber frame and the optical membrane group, the first polaroid is attached to the surface of one side, facing the rubber frame, of the liquid crystal panel, a shading adhesive tape is arranged on the surface, facing the rubber frame, of the first polaroid, an integrated structure is formed between the shading adhesive tape and the first polaroid, the shading adhesive tape is arranged in a shape of a Chinese character kou along the periphery of the first polaroid, and the shading adhesive tape is positioned above the rubber frame and the gap.
Furthermore, the peripheral edge of the shading adhesive tape is flush with the peripheral edge of the first polaroid.
Furthermore, the peripheral edge of the shading adhesive tape protrudes out of the peripheral edge of the first polaroid.
The invention also provides an assembling method of the liquid crystal display module, which comprises the following steps:
providing a liquid crystal panel;
providing a first polaroid, wherein the first polaroid is provided with a first surface and a second surface which are opposite, and a shading adhesive tape is formed on the first surface in advance;
providing a backlight module, wherein the backlight module comprises an optical diaphragm group and a rubber frame, the rubber frame is arranged at the periphery of the optical diaphragm group, and a gap is formed between the rubber frame and the optical diaphragm group;
attaching the second surface of the first polarizer to the lower surface of the liquid crystal panel; and
fixing the liquid crystal display panel on the rubber frame of the backlight module, and enabling the shading adhesive tape to be positioned above the rubber frame and the gap.
Further, providing a first polarizer having a first surface and a second surface opposite to each other, wherein the step of pre-forming a light-shielding tape on the first surface comprises:
providing a whole piece of shading tape sheet;
providing a whole first polaroid, wherein the whole first polaroid is a rolled polaroid without a protective film attached and cut pieces;
attaching the whole piece of shading adhesive tape sheet to the first surface of the whole piece of first polarizer;
cutting the whole first polaroid adhered with the shading adhesive tape into single polaroids, and cutting the middle part and the peripheral edge of the shading adhesive tape, wherein the middle part of the shading adhesive tape is torn off when the liquid crystal display module is assembled.
Further, providing a first polarizer having a first surface and a second surface opposite to each other, wherein the step of pre-forming a light-shielding tape on the first surface comprises:
providing a whole piece of shading tape sheet;
cutting the whole piece of the shading tape sheet, and reserving the part, corresponding to the peripheral edge of each first polaroid, on the shading tape sheet;
providing a whole first polaroid, wherein the whole first polaroid is a rolled polaroid without a protective film attached and cut pieces;
attaching the whole piece of shading adhesive tape sheet to the first surface of the whole piece of first polarizer;
cutting the whole first polaroid into single first polaroids, and arranging shading adhesive tapes on the peripheral edge of each first polaroid.
Further, providing a first polarizer having a first surface and a second surface opposite to each other, wherein the step of pre-forming a light-shielding tape on the first surface comprises:
providing a shading adhesive tape;
providing a single-chip first polarizer;
and attaching a light-shielding adhesive tape to the periphery of the first surface of each first polaroid, wherein the peripheral edge of the light-shielding adhesive tape protrudes out of the peripheral edge of the first polaroid.
Furthermore, the surface of the light-shielding tape facing the rubber frame has viscosity, and the liquid crystal panel is fixedly adhered to the rubber frame through the light-shielding tape.
Furthermore, the surface of the shading adhesive tape facing the rubber frame has no viscosity, and the liquid crystal panel is fixedly adhered to the rubber frame through a double-sided adhesive tape.
In the embodiment of the invention, the first polarizer and the shading adhesive tape are made into an integrated structure, so that the alignment precision between the shading adhesive tape and the first polarizer is improved, and the enough overlapping area between the shading adhesive tape and the first polarizer can be ensured to provide a better light shading effect.
Drawings
Fig. 1 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the invention.
FIG. 2 is a schematic structural diagram of a liquid crystal display module according to another embodiment of the invention.
FIG. 3 is a flowchart illustrating an assembling method of a liquid crystal display module according to an embodiment of the present invention.
FIG. 4 is a schematic structural diagram of a polarizer according to a first embodiment of the present invention before being cut.
FIG. 5 is a schematic structural diagram of a monolithic polarizer according to a first embodiment of the present invention.
FIG. 6 is a schematic structural diagram of a polarizer before being cut according to a second embodiment of the present invention.
FIG. 7 is a schematic structural diagram of a monolithic polarizer according to a second embodiment of the present invention.
FIG. 8 is a schematic structural diagram of a monolithic polarizer according to a third embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Fig. 1 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the invention. As shown in fig. 1, the liquid crystal display module 10 of the present invention includes a back plate 11, a reflection plate 12, a light guide plate 13, an optical film set 14, a rubber frame 15 and a liquid crystal panel 16, wherein the reflection plate 12, the light guide plate 13, the optical film set 14 and the rubber frame 16 are all accommodated in an accommodating space formed by the back plate 11, the rubber frame 15 is disposed at the periphery of the optical film set 14, and a gap 19 is formed between the rubber frame 15 and the light guide plate 13, and between the rubber frame 15 and the optical film set 14.
The upper surface and the lower surface of the liquid crystal panel 16 are respectively attached with a first polarizer 18 and a second polarizer 17, the surface of the first polarizer 18 facing the rubber frame 15 is provided with a light-shielding tape 21, the light-shielding tape 21 is pre-manufactured on the first polarizer 18 and forms an integrated structure with the first polarizer 18, the light-shielding tape 21 is arranged in a square shape along the periphery of the first polarizer 18, one side surface of the first polarizer 18 without the light-shielding tape 21 is attached to the liquid crystal panel 16, the liquid crystal panel 16 is placed on the rubber frame 15, and the light-shielding tape 21 is positioned above the rubber frame 15 and the gap 19.
The light-shielding tape 21 and the first polarizer 18 are manufactured into an integral structure in advance, so that the alignment precision of the light-shielding tape 21 and the first polarizer 18 is ensured, and the light-shielding effect is better because the light-shielding tape 21 and the first polarizer 18 have enough overlapping area.
As described above, in the present embodiment, the peripheral edge of the light-shielding tape 21 is flush with the peripheral edge of the first polarizer 18. In another embodiment of the present invention, as shown in fig. 2, the peripheral edge of the light-shielding tape 21 protrudes from the peripheral edge of the first polarizer 18, so that when the product specification is more narrow and thin, the light-shielding tape 21 can be more fully shielded above the rubber frame 15 and the gap 19 to achieve better light-shielding effect.
When the surface of the light shielding tape 21 facing the plastic frame 15 has viscosity, the liquid crystal panel 16 can be directly fixed on the plastic frame 15 through the light shielding tape 21, and at this time, the light shielding tape 21 can play a role of fixing and shielding light. When the surface of the light shielding tape 21 facing the rubber frame 15 has no viscosity, the liquid crystal panel 16 may be fixed to the rubber frame 15 by double-sided adhesive, and at this time, the light shielding tape 21 mainly plays a role of shielding light.
Next, the assembling method of the liquid crystal display module is described in detail as follows. Referring to fig. 3, the assembling method of the liquid crystal display module of the present invention includes the following steps:
step 201: providing a liquid crystal panel;
step 202: providing a first polaroid, wherein the first polaroid is provided with a first surface and a second surface which are opposite, and a shading adhesive tape is formed on the first surface in advance;
step 203: providing a backlight module, wherein the backlight module comprises an optical diaphragm group and a rubber frame, the rubber frame is arranged at the periphery of the optical diaphragm group, and a gap is formed between the rubber frame and the optical diaphragm group;
step 204: attaching the second surface of the first polarizer to the lower surface of the liquid crystal panel;
step 205: and sticking and fixing the liquid crystal panel on the rubber frame of the backlight module to enable the shading adhesive tape to be positioned above the rubber frame and the gap.
Specifically, in the first embodiment of the present invention, step 202 includes:
first, a whole piece of light-shielding tape sheet 20 and a whole piece of first polarizer 180 are provided, where the whole piece of first polarizer 180 refers to a rolled polarizer without a protective film attached and cut pieces, and may be a semi-finished product that has been subjected to processes such as dyeing and stretching of a PVA layer (polyvinyl alcohol), attaching of a TAC layer (Triacetyl Cellulose), and baking. Next, as shown in fig. 4, the entire piece of light-shielding tape sheet 20 is attached to the first surface of the entire piece of first polarizer 180. Next, the entire piece of the first polarizer 180 to which the light shielding tape sheet 20 is attached is cut into individual polarizers 18 along a dotted line shown in fig. 4, and the middle portion and the peripheral edge portion of the light shielding tape corresponding to each of the individual polarizers 18 are cut off, thereby obtaining the individual first polarizers 18 shown in fig. 5.
As shown in fig. 5, the cut single-piece first polarizer 18 has a first surface 181 and a second surface 182, a light-shielding tape 21 is formed on an entire surface of the first surface 181, a whole layer of protective film 22 is attached on the light-shielding tape 21, the protective film 22 can be an original protective film of the light-shielding tape 20 or a protective film attached by a polarizer process, a peripheral edge of the light-shielding tape 21 is flush with a peripheral edge of the first polarizer 18, and middle portions of the light-shielding tape 21 and the protective film 22 are cut and disconnected from the peripheral edge. When assembling the liquid crystal display module, the middle portions of the protective film 22 and the light-shielding tape 21 are removed. In this embodiment, the assembled liquid crystal display module is as shown in fig. 1. According to the invention, before the protective film is attached and the first polaroid is cut, the shading adhesive tape is attached to the first surface of the first polaroid, and the shading adhesive tape and the first polaroid are made into an integral structure only by adding the attaching process of the shading adhesive tape in the traditional polaroid production process, so that the process is simple.
In step 204, when the light-shielding tape 21 has viscosity on the surface facing the frame 15, the liquid crystal panel 26 may be directly adhered and fixed to the frame 15 by the light-shielding tape 21. When the light shielding tape 21 has no adhesiveness on the surface facing the frame, the liquid crystal panel 26 may be fixed to the frame 15 by double-sided tape bonding.
The present invention further provides another embodiment of a method for assembling a liquid crystal display module, which is different from the first embodiment in that step 202 includes:
first, a whole piece of light-shielding tape sheet 20 is provided, and the whole piece of light-shielding tape sheet 20 is cut, and a portion of the light-shielding tape sheet 20 corresponding to the peripheral edge of each first polarizer is retained, so that, as shown in fig. 6, the cut light-shielding tape sheet 20 has a mesh structure formed by continuously forming a plurality of squares. A whole piece of the first polarizer 180 is provided, where the whole piece of the first polarizer 180 is a rolled polarizer without a protective film attached and cut pieces, and may be a semi-finished product after the processes of dyeing, extending, attaching TAC layer, and baking the PVA layer are completed, for example.
Next, the light-shielding tape sheet 20 is integrally attached to the first surface of the entire first polarizer 180, and the entire first polarizer 180 is cut into the single first polarizer 18 shown in fig. 7 along the dotted line shown in fig. 6. As shown in fig. 7, the cut single-piece first polarizer 18 has a first surface 181 and a second surface 182 opposite to each other, a light-shielding tape 21 is formed on the peripheral edge of the first surface 181, the peripheral edge of the light-shielding tape 21 is flush with the peripheral edge of the first polarizer 18, the protective film 22 covers the first surface 181 of the polarizer 18, the protective film 22 may be an original protective film of the light-shielding tape sheet 20 or a protective film attached by a polarizer process, and the protective film 22 is only required to be torn off when assembling the liquid crystal display module. In this embodiment, the assembled liquid crystal display module is as shown in fig. 1. According to the invention, before the protective film is attached and the first polaroid is cut, the shading adhesive tape is attached to the first surface of the first polaroid, and the shading adhesive tape and the first polaroid are made into an integral structure only by adding the attaching process of the shading adhesive tape in the traditional polaroid production process, so that the process is simple.
The present invention further provides another embodiment of a method for assembling a liquid crystal display module, which is different from the above embodiments in that step 202 specifically includes:
first, a light-shielding tape 21 and a single piece of first polarizer 18 are provided, where the light-shielding tape 21 is cut, and may be a strip or a box matched with the single piece of first polarizer 18, and the single piece of first polarizer 18 refers to a finished polarizer product with a cut piece.
Next, as shown in fig. 8, the single first polarizer 18 has a first surface 181 and a second surface 182, the light-shielding tape 18 is attached to the peripheral edge of the first surface 181, and the peripheral edge of the light-shielding tape 21 protrudes from the peripheral edge of the first polarizer 18, the light-shielding tape 21 is attached with a whole protective film 22 (the protective film 22 is a protective film carried by the light-shielding tape itself), and the protective film 22 is only required to be removed when the liquid crystal display module is assembled, in this embodiment, the assembled liquid crystal display module is as shown in fig. 2. Since the peripheral edges of the light-shielding tape 21 protrude from the peripheral edges of the first polarizer 18 in the present embodiment, light leakage can be more effectively prevented in a product with a narrower frame. In this embodiment, before assembling the liquid crystal panel, the light-shielding tape 21 is attached to the first surface 181 of the first polarizer 18 in advance, and is made into an integral structure with the first polarizer 18, so that the alignment accuracy between the light-shielding tape 21 and the first polarizer 18 can be ensured, and a sufficient overlapping area is provided between the light-shielding tape 21 and the first polarizer 18 to provide a better light-shielding effect.
In the embodiment of the invention, the first polaroid and the shading adhesive tape are made into an integrated structure, so that the alignment precision between the shading adhesive tape and the first polaroid is improved, and the enough overlapping area between the shading adhesive tape and the first polaroid can be ensured to provide a better light shading effect.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The assembling method of the liquid crystal display module is characterized in that: the assembling method comprises the following steps:
providing a liquid crystal panel;
providing a first polaroid, wherein the first polaroid is provided with a first surface and a second surface which are opposite, and a shading adhesive tape is formed on the first surface in advance;
providing a backlight module, wherein the backlight module comprises an optical diaphragm group and a rubber frame, the rubber frame is arranged at the periphery of the optical diaphragm group, and a gap is formed between the rubber frame and the optical diaphragm group;
attaching the second surface of the first polarizer to the lower surface of the liquid crystal panel; and
fixing the liquid crystal display panel on the rubber frame of the backlight module to enable the shading adhesive tape to be positioned above the rubber frame and the gap; wherein,
providing a first polarizer, wherein the first polarizer is provided with a first surface and a second surface which are opposite, and the step of forming a shading adhesive tape on the first surface in advance comprises the following steps:
providing a whole piece of shading tape sheet;
providing a whole first polaroid, wherein the whole first polaroid is a rolled polaroid without a protective film attached and cut pieces;
attaching the whole piece of shading adhesive tape sheet to the first surface of the whole piece of first polarizer; and
cutting the whole first polaroid adhered with the shading adhesive tape into single polaroids, and cutting the middle part and the peripheral edge of the shading adhesive tape, wherein the middle part of the shading adhesive tape is torn off when the liquid crystal display module is assembled.
2. The assembling method of the liquid crystal display module is characterized in that: the assembling method comprises the following steps:
providing a liquid crystal panel;
providing a first polaroid, wherein the first polaroid is provided with a first surface and a second surface which are opposite, and a shading adhesive tape is formed on the first surface in advance;
providing a backlight module, wherein the backlight module comprises an optical diaphragm group and a rubber frame, the rubber frame is arranged at the periphery of the optical diaphragm group, and a gap is formed between the rubber frame and the optical diaphragm group;
attaching the second surface of the first polarizer to the lower surface of the liquid crystal panel; and
fixing the liquid crystal display panel on the rubber frame of the backlight module to enable the shading adhesive tape to be positioned above the rubber frame and the gap; wherein,
providing a first polarizer, wherein the first polarizer is provided with a first surface and a second surface which are opposite, and the step of forming a shading adhesive tape on the first surface in advance comprises the following steps:
providing a whole piece of shading tape sheet;
cutting the whole piece of the shading tape sheet, and reserving the part, corresponding to the peripheral edge of each first polaroid, on the shading tape sheet;
providing a whole first polaroid, wherein the whole first polaroid is a rolled polaroid without a protective film attached and cut pieces;
attaching the whole piece of shading adhesive tape sheet to the first surface of the whole piece of first polarizer; and
cutting the whole first polaroid into single first polaroids, and arranging shading adhesive tapes on the peripheral edge of each first polaroid.
3. The assembling method of the liquid crystal display module is characterized in that: the assembling method comprises the following steps:
providing a liquid crystal panel;
providing a first polaroid, wherein the first polaroid is provided with a first surface and a second surface which are opposite, and a shading adhesive tape is formed on the first surface in advance;
providing a backlight module, wherein the backlight module comprises an optical diaphragm group and a rubber frame, the rubber frame is arranged at the periphery of the optical diaphragm group, and a gap is formed between the rubber frame and the optical diaphragm group;
attaching the second surface of the first polarizer to the lower surface of the liquid crystal panel; and
fixing the liquid crystal display panel on the rubber frame of the backlight module to enable the shading adhesive tape to be positioned above the rubber frame and the gap; wherein,
providing a first polarizer, wherein the first polarizer is provided with a first surface and a second surface which are opposite, and the step of forming a shading adhesive tape on the first surface in advance comprises the following steps:
providing a shading adhesive tape;
providing a single-chip first polarizer; and
and attaching a light-shielding adhesive tape to the periphery of the first surface of each first polaroid, wherein the peripheral edge of the light-shielding adhesive tape protrudes out of the peripheral edge of the first polaroid.
4. The method for assembling a liquid crystal display module according to any one of claims 1 to 3, wherein: the surface of the shading adhesive tape facing the rubber frame is provided with viscosity, and the liquid crystal panel is stuck and fixed with the rubber frame through the shading adhesive tape.
5. The method for assembling a liquid crystal display module according to any one of claims 1 to 3, wherein: the surface of the shading adhesive tape facing the adhesive frame has no viscosity, and the liquid crystal panel is fixedly adhered to the adhesive frame through a double-sided adhesive tape.
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| CN109445000B (en) * | 2019-01-03 | 2021-12-10 | 京东方科技集团股份有限公司 | Protective film, mother film, polarizer assembly, preparation method of polarizer assembly, mother film assembly and preparation method of display module |
| CN110716347A (en) * | 2019-09-30 | 2020-01-21 | 武汉华星光电技术有限公司 | Attaching method of backlight module, backlight module and display device |
| CN111708198A (en) * | 2020-06-24 | 2020-09-25 | 维沃移动通信有限公司 | Display module and electronic device |
| CN112596307A (en) * | 2020-12-11 | 2021-04-02 | 北海惠科光电技术有限公司 | Frameless display and assembling method thereof |
| CN114488597A (en) * | 2022-01-24 | 2022-05-13 | 广州华星光电半导体显示技术有限公司 | Display module and preparation method thereof |
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