CN104992632A - Curved-surface display panel preparation method, curved-surface display panel and curved-surface display device - Google Patents
Curved-surface display panel preparation method, curved-surface display panel and curved-surface display device Download PDFInfo
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- CN104992632A CN104992632A CN201510461452.4A CN201510461452A CN104992632A CN 104992632 A CN104992632 A CN 104992632A CN 201510461452 A CN201510461452 A CN 201510461452A CN 104992632 A CN104992632 A CN 104992632A
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Abstract
The invention relates to a curved-surface display panel preparation method, a curved-surface display panel and a curved-surface display device and belongs to the display technical field. The curved-surface display panel preparation method includes the following steps that: a first polarizing plate is attached to a display panel, wherein the first polarizing plate includes a polarizing layer and a directional shrinking layer; deformation processing is performed on the display panel coated with the first polarizing plate, so that the display panel can be bent and deformed under the stress action of the directional shrinking layer; and shaping processing is performed on the display panel and the first polarizing plate, so that bent and deformed shapes of the display panel and the first polarizing plate can be fixed. With the method adopted, fragmentation of the display panel in a production process due to external force-caused bending can be avoided, and the use intensity of the display panel can be improved, and the structure of a corresponding display device can be simplified, and therefore, the production yield and use stability of the curved-surface display panel can be improved.
Description
Technical field
The present invention relates to display technique field, particularly a kind of curved face display panel preparation method and curved face display panel, curved-surface display device.
Background technology
The display panel of curved-surface display device is the curve form in certain radian, and relative to conventional planar display device, the visible angle of curved-surface display device in the screen left and right sides is larger, can be the visual experience that user provides better.
In prior art, the job operation that curved face display panel adopts for make display panel be bent to required radian by external force, and coordinates corresponding curved surface backlight module to be assembled into curved-surface display device.This job operation process is comparatively complicated, and display panel is easily producing cracked phenomenon by external force BENDING PROCESS, reduces the production yields of display panel product; Display panel needs to keep its Bending Deformation by external force after assembly, and is in lasting stress, in production or use procedure, easily produces local chips when display panel is vibrated or external force is collided; Need in curved-surface display device to arrange ad hoc structure for keeping the radian of display panel, its structure comparatively flat display apparatus is comparatively complicated, and because of display device material and surface structure restriction, the radian of display panel not easily maintains, and the stability in use of display device product is lower.
Summary of the invention
The invention provides a kind of preparation method of curved face display panel and curved face display panel thereof and display device, avoid the cracked phenomenon produced when display panel is because bending by external force in process of production, and improve the working strength of display panel, and simplify the structure of corresponding surface display device, improve production yields and the stability in use of curved face display panel.
For achieving the above object, the invention provides following technical scheme:
A preparation method for curved face display panel, comprising:
Be attached on display panel by the first Polarizer, wherein, the first Polarizer comprises polarizing layer and directional retraction layer;
Deformation process is carried out to the display panel after attaching first Polarizer, makes display panel produce flexural deformation under the effect of stress of directional retraction layer;
Setting process is carried out to display panel and the first Polarizer, the flexural deformation shape of display panel and the first Polarizer is fixed.
In this preparation method, the Bending Deformation of curved face display panel is formed under stress relief effect by the directional retraction layer in the first Polarizer be attached on curved face display panel, not needing in bending deformation process to apply external force to curved face display panel, avoiding the cracked phenomenon produced when display panel is because bending by external force in process of production; And curved face display panel its flexural deformation shape after carrying out setting process is fixed, after being assemblied in curved-surface display device, do not need external force to maintain deformation, be given a shock or not easily producing cracked in external force impact event, and in curved-surface display device, do not needing the corresponding construction that is provided with for keeping curved face display panel.Therefore, the cracked phenomenon produced when this preparation method avoids display panel because bending by external force, and improve the working strength of display panel, and simplify the structure of corresponding display device, thus improve production yields and the stability in use of curved face display panel.
Preferably, the first Polarizer is attached on the color membrane substrates of display panel.
Preferably, the directional retraction layer in the first Polarizer is positioned at the side of polarizing layer towards display panel; First Polarizer also comprise be positioned at polarizing layer deviate from color membrane substrates side the first protective seam, be positioned at second protective seam of polarizing layer towards color membrane substrates side; polarizing layer is combined with the first protective seam and the second protective seam, and between the first protective seam and the second protective seam.
Preferably, the first Polarizer also comprises and is positioned at three protective seam of directional retraction layer towards color membrane substrates side, and directional retraction layer is between the second protective seam and the 3rd protective seam; The preparation method carrying out the first Polarizer before deformation process comprises:
Directional retraction layer is heated at temperature deterioration occurring lower than polarizing layer;
And directional retraction layer is carried out stretch processing along the direction on two limits of the deformation that do not bend perpendicular to display panel;
Then directional retraction layer is combined with the 3rd protective seam and the second protective seam, forms the first Polarizer before carrying out deformation process.
Preferably, carry out in the first Polarizer before deformation process, the thickness of the first protective seam is 30-130 μm, and the thickness of the second protective seam is 130-230 μm, and the thickness of polarizing layer is 50-150 μm, and the thickness of the 3rd protective seam is 130-230 μm.
Preferably, first Polarizer also comprises the first pressure-sensitive adhesive layer between the second protective seam and directional retraction layer and is positioned at the second pressure-sensitive adhesive layer that directional retraction layer deviates from polarizing layer side, and directional retraction layer is between the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer; The preparation method carrying out the first Polarizer before deformation process comprises:
Directional retraction layer is heated at temperature deterioration occurring lower than polarizing layer;
And directional retraction layer is carried out stretch processing along the direction on two limits of the deformation that do not bend perpendicular to display panel;
Then directional retraction layer is combined with the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer, and the first pressure-sensitive adhesive layer and the second protective seam are combined, form the first Polarizer carried out before deformation process.
Preferably, carry out in the first Polarizer before deformation process, the first protective layer thickness is 50-150 μm, and the second protective layer thickness is 130-230 μm.
Preferably, the directional retraction layer in the first Polarizer is the directional retraction layer prepared by biaxially oriented polystyrene material, polypropylene material, cross-linking polyethylene materials or polystyrene material.
Preferably, when the directional retraction layer in the first Polarizer is by biaxially oriented polystyrene material or polypropylene material, the stretch processing heating-up temperature of directional retraction layer is more than or equal to 60 DEG C and is less than 85 DEG C.
Preferably, the method for deformation process is carried out for heat display panel to the display panel after attaching first Polarizer.
Preferably, when carrying out deformation process to the display panel after attaching first Polarizer, the temperature that display panel carries out heating is more than or equal to 60 DEG C and is less than 85 DEG C.
Preferably, the method for setting process is for carry out quenching to display panel and the first Polarizer.
Present invention also offers a kind of curved face display panel, comprise display panel, the first Polarizer be attached in display panel, wherein, the first Polarizer comprises polarizing layer and for making Polarizer to the directional retraction layer deviating from display panel direction convex curved.
The curved shape of this curved face display panel is fixed and is not needed external force to maintain, it is not easily chipping when vibrated or external force is collided, and do not need ad hoc structure to maintain the deformation of curved face display panel with the curved-surface display device of its assembling, therefore, the working strength of this curved face display panel is higher, and simplify the structure of corresponding display device, thus improve production yields and the stability in use of curved face display panel.
Present invention also offers a kind of curved-surface display device, comprise above-mentioned curved face display panel.
Accompanying drawing explanation
Fig. 1 is preparation method's process flow diagram of a kind of curved face display panel provided in the specific embodiment of the invention;
Fig. 2 is a kind of curved face display panel structural representation provided in the specific embodiment of the invention;
Fig. 3 is the first polarized light plate structure schematic diagram in the curved face display panel in the specific embodiment of the invention in a kind of implementation;
Fig. 4 is the first polarized light plate structure schematic diagram in the curved face display panel in the specific embodiment of the invention in another kind of implementation.
Reference numeral:
10, first Polarizer; 20, display panel; 201, color membrane substrates;
101, first protective seam; 102, polarizing layer; 103, second protective seam;
104, directional retraction layer; 105, three protective seam; 106, first pressure-sensitive adhesive layer;
107, second pressure-sensitive adhesive layer.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the preparation method of a kind of curved face display panel provided in this embodiment, comprising:
Step S101, is attached on display panel by the first Polarizer, and wherein, the first Polarizer comprises polarizing layer and directional retraction layer;
Step S102, carries out deformation process to the display panel after attaching first Polarizer, makes display panel produce flexural deformation under the effect of stress of directional retraction layer;
Step S103, carries out setting process to display panel and the first Polarizer, the flexural deformation shape of display panel and the first Polarizer is fixed.
In this preparation method, the Bending Deformation of curved face display panel is in step s 102, formed under effect of stress by the directional retraction layer in the first Polarizer be attached in step S101 on curved face display panel, not needing in bending deformation process to apply external force to curved face display panel, avoiding the cracked phenomenon produced when display panel is because bending by external force in process of production; And curved face display panel carry out in step s 103 setting process after its flexural deformation shape fix, after being assemblied in curved-surface display device, do not need external force to maintain deformation, be given a shock or not easily producing cracked in external force impact event, and in curved-surface display device, do not needing the corresponding construction that is provided with for keeping curved face display panel.Therefore, the cracked phenomenon produced when this preparation method avoids display panel because bending by external force, and improve the working strength of display panel, and simplify the structure of corresponding display device, thus improve production yields and the stability in use of curved face display panel.
As shown in Figure 2, in a kind of optimal way, first Polarizer 10 is attached on the color membrane substrates 201 of display panel 20, in which, by the directional retraction layer in the first Polarizer in the drawdown deformation produced along the bearing of trend of two sides do not bent perpendicular to curved face display panel, display panel is driven to bend deformation.
As shown in Figure 3 and Figure 4, in a kind of optimal way, the directional retraction layer 104 in the first Polarizer 10 is positioned at the side of polarizing layer 102 towards display panel 20; First Polarizer 10 also comprise be positioned at polarizing layer 102 deviate from color membrane substrates 201 side the first protective seam 101, be positioned at second protective seam 103 of polarizing layer 102 towards color membrane substrates 201 side; polarizing layer 102 is combined with the first protective seam 101 and the second protective seam 103, and between the first protective seam 101 and the second protective seam 103.In the preferred embodiment, the first Polarizer 10 can adopt various structures to be prepared, and realizes as adopted following manner:
Implementation one, as shown in Figure 3, the first Polarizer 10 also comprises and is positioned at three protective seam 105 of directional retraction layer 104 towards color membrane substrates 201 side, and directional retraction layer 104 is between the second protective seam 103 and the 3rd protective seam 105; The preparation method carrying out the first Polarizer 10 before deformation process comprises:
Directional retraction layer 104 is heated at the temperature that deterioration occurs lower than polarizing layer 102, polarizing layer 102 can be avoided deterioration at high temperature to occur and then affects its performance;
And directional retraction layer 104 is carried out stretch processing along the direction on two limits of the deformation that do not bend perpendicular to display panel 20, before the stretching of directional retraction layer 104, thickness, the rear thickness that stretches, tensile elongation need be determined according to the size of curved face display panel, curvature and display panel thickness of glass;
Then directional retraction layer 104 is combined with the 3rd protective seam 105 and the second protective seam 103, formed carry out deformation process before the first Polarizer 10, in conjunction with time keep heating-up temperature constant.
For meeting display panel usability demand, carry out in the first Polarizer before deformation process, the thickness of the first protective seam 101 is 50-130 μm, preferably, is 80 μm; The thickness of the second protective seam 103 is 130-230 μm, preferably, is 180 μm; The thickness of polarizing layer 102 is 50-150 μm, preferably, is 100 μm; The thickness of the 3rd protective seam 105 is 130-230 μm, preferably, is 180 μm.
In another kind of implementation, as shown in Figure 4, first Polarizer 10 also comprises the first pressure-sensitive adhesive layer 106 between the second protective seam 103 and directional retraction layer 104 and is positioned at the second pressure-sensitive adhesive layer 107 that directional retraction layer 104 deviates from polarizing layer 102 side, and directional retraction layer 104 is between the first pressure-sensitive adhesive layer 106 and the second pressure-sensitive adhesive layer 107; The preparation method carrying out the first Polarizer 10 before deformation process comprises:
Directional retraction layer 104 is heated at the temperature that deterioration occurs lower than polarizing layer 102, polarizing layer 102 can be avoided deterioration at high temperature to occur and then affects its performance;
And directional retraction layer 104 is carried out stretch processing along the direction on two limits of the deformation that do not bend perpendicular to display panel 20, before the stretching of directional retraction layer 104, thickness, the rear thickness that stretches, tensile elongation need be determined according to the size of curved face display panel, curvature and display panel thickness of glass;
Then directional retraction layer 104 is combined with the first pressure-sensitive adhesive layer 106 and the second pressure-sensitive adhesive layer 107, and the first pressure-sensitive adhesive layer 106 and the second protective seam 103 is combined, form the first Polarizer 10 of carrying out before deformation process, in conjunction with time keep heating-up temperature constant.
For meeting display panel usability demand, carry out in the first Polarizer 10 before deformation process, the first protective seam 101 thickness is 50-150 μm, preferably, is 100 μm; Second protective seam 103 thickness is 130-230 μm, preferably, is 180 μm.
Directional retraction layer need meet high, the easy processing of transmittance, shrink the features such as rear proterties is stable, in a kind of optimal way, directional retraction layer in first Polarizer is prepared by biaxially oriented polystyrene material, polypropylene material, cross-linking polyethylene materials or polystyrene material, to meet the demand.
The temperature that deterioration occurs because of polarizing layer is 85 DEG C, and not easily stretching lower than 60 DEG C of biaxially oriented polystyrene films and polypropylene screen, there is deterioration for avoiding polarizing layer 102 when heating and ensure the drawing effect of directional retraction layer, preferably, when the directional retraction layer in the first Polarizer is by biaxially oriented polystyrene material or polypropylene material, the stretch processing heating-up temperature of directional retraction layer is more than or equal to 60 DEG C and is less than 85 DEG C.
In a kind of optimal way, the method of deformation process is carried out for heat display panel to the display panel after attaching first Polarizer, make directional retraction layer carry out stress relief at a certain temperature, and then produce drawdown deformation, drive display panel to bend deformation.
The temperature that deterioration occurs because of polarizing layer is 85 DEG C, and for avoiding polarizing layer 102, when heating, deterioration occurs, particularly, the heating-up temperature of directional retraction layer 104 is 80 DEG C.
The tension force that directional retraction layer produces after shrinking distortion should be equal with the tension force maintained needed for display panel curvature, and the maximum contraction rate preparing material of different directional retraction layer is all different with maximum collapse tension force, determine after need calculating according to the size of display panel and desired curvature for making the thickness of the directional retraction layer after shrinking distortion, usually, when directional retraction layer 104 is prepared for biaxially oriented polystyrene material, the thickness of directional retraction layer 104 before carrying out stretch processing can be 20-30 μm, preferably, be 25 μm; When directional retraction layer 104 is prepared for polypropylene material, the thickness of directional retraction layer 104 before carrying out stretch processing can be 42-52 μm, preferably, is 47um.
For the distortion of the curved face display panel of the deformation that bent after making to carry out deformation process is fixed, in a kind of optimal way, the method for setting process is for carry out quenching to curved face display panel and the first Polarizer.
In addition, a kind of curved face display panel is additionally provided in this embodiment, comprise display panel, the first Polarizer be attached in display panel, wherein, the first Polarizer comprises polarizing layer and for making Polarizer to the directional retraction layer deviating from display panel direction convex curved.
The curved shape of this curved face display panel is fixed and is not needed external force to maintain, it is not easily chipping when vibrated or external force is collided, and do not need ad hoc structure to maintain the deformation of curved face display panel with the curved-surface display device of its assembling, therefore, the working strength of this display panel is higher, and simplify the structure of corresponding display device, thus improve production yields and the stability in use of curved face display panel.
Present invention also offers a kind of curved-surface display device, comprise above-mentioned curved face display panel.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (14)
1. a preparation method for curved face display panel, is characterized in that, comprising:
Be attached on display panel by the first Polarizer, wherein, described first Polarizer comprises polarizing layer and directional retraction layer;
Deformation process is carried out to the described display panel after attaching first Polarizer, makes display panel produce flexural deformation under the effect of stress of described directional retraction layer;
Setting process is carried out to described display panel and the first Polarizer, the flexural deformation shape of described display panel and the first Polarizer is fixed.
2. preparation method according to claim 1, is characterized in that, described first Polarizer is attached on the color membrane substrates of described display panel.
3. preparation method according to claim 2, is characterized in that, the directional retraction layer in described first Polarizer is positioned at the side of described polarizing layer towards described display panel; Described first Polarizer also comprise be positioned at described polarizing layer deviate from described color membrane substrates side the first protective seam, be positioned at second protective seam of described polarizing layer towards described color membrane substrates side; described polarizing layer is combined with described first protective seam and described second protective seam, and between described first protective seam and described second protective seam.
4. preparation method according to claim 3, it is characterized in that, described first Polarizer also comprises and is positioned at three protective seam of described directional retraction layer towards described color membrane substrates side, and described directional retraction layer is between described second protective seam and described 3rd protective seam; The preparation method carrying out described first Polarizer before deformation process comprises:
Described directional retraction layer is heated at temperature deterioration occurring lower than described polarizing layer;
And described directional retraction layer is carried out stretch processing along the direction on two limits of the deformation that do not bend perpendicular to described display panel;
Then described directional retraction layer is combined with described 3rd protective seam and described second protective seam, forms described first Polarizer before carrying out deformation process.
5. preparation method according to claim 4; it is characterized in that; in described the first Polarizer carried out before deformation process; the thickness of described first protective seam is 30-130 μm; the thickness of described second protective seam is 130-230 μm; the thickness of described polarizing layer is 50-150 μm, and the thickness of described 3rd protective seam is 130-230 μm.
6. preparation method according to claim 3, it is characterized in that, described first Polarizer also comprises the first pressure-sensitive adhesive layer between described second protective seam and described directional retraction layer and is positioned at the second pressure-sensitive adhesive layer that described directional retraction layer deviates from described polarizing layer side, and described directional retraction layer is between described first pressure-sensitive adhesive layer and described second pressure-sensitive adhesive layer; The preparation method carrying out described first Polarizer before deformation process comprises:
Described directional retraction layer is heated at temperature deterioration occurring lower than described polarizing layer;
And described directional retraction layer is carried out stretch processing along the direction on two limits of the deformation that do not bend perpendicular to described display panel;
Then described directional retraction layer is combined with described first pressure-sensitive adhesive layer and described second pressure-sensitive adhesive layer, and described first pressure-sensitive adhesive layer and described second protective seam are combined, form the first Polarizer carried out before deformation process.
7. preparation method according to claim 6, is characterized in that, described in carry out before deformation process the first Polarizer, described first protective layer thickness is 50-150 μm, and described second protective layer thickness is 130-230 μm.
8. the preparation method according to any one of claim 4-7, it is characterized in that, the directional retraction layer in described first Polarizer is the directional retraction layer prepared by biaxially oriented polystyrene material, polypropylene material, cross-linking polyethylene materials or polystyrene material.
9. preparation method according to claim 8, it is characterized in that, when the directional retraction layer in described first Polarizer is by biaxially oriented polystyrene material or polypropylene material, the stretch processing heating-up temperature of described directional retraction layer is more than or equal to 60 DEG C and is less than 85 DEG C.
10. preparation method according to claim 8, is characterized in that, carries out the method for deformation process for heat described display panel to the described display panel attached after described first Polarizer.
11. preparation methods according to claim 10, is characterized in that, when carrying out deformation process to the described display panel attached after described first Polarizer, the temperature that described display panel carries out heating is more than or equal to 60 DEG C and is less than 85 DEG C.
12. preparation methods according to claim 1, is characterized in that, the method for described setting process is for carry out quenching to described display panel and described first Polarizer.
13. 1 kinds of curved face display panels, it is characterized in that, comprise display panel, the first Polarizer be attached on described display panel, wherein, described first Polarizer comprises polarizing layer and for making described Polarizer to the directional retraction layer deviating from described display panel direction convex curved.
14. 1 kinds of curved-surface display devices, is characterized in that, comprise curved face display panel as claimed in claim 13.
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| CN109949702B (en) * | 2019-03-25 | 2024-01-02 | 京东方科技集团股份有限公司 | Flexible display device and manufacturing method thereof |
| CN112241039A (en) * | 2020-10-20 | 2021-01-19 | 京东方科技集团股份有限公司 | Polaroid, display module and processing method of polaroid |
| CN113888972A (en) * | 2021-10-09 | 2022-01-04 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
| CN113888972B (en) * | 2021-10-09 | 2023-11-07 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
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Application publication date: 20151021 |