CN109375308B - Polarizer film and display panel manufacturing method - Google Patents
Polarizer film and display panel manufacturing method Download PDFInfo
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- CN109375308B CN109375308B CN201811426051.5A CN201811426051A CN109375308B CN 109375308 B CN109375308 B CN 109375308B CN 201811426051 A CN201811426051 A CN 201811426051A CN 109375308 B CN109375308 B CN 109375308B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a polarizer film and a display panel manufacturing method, relates to the technical field of display, and can improve the production efficiency of a display panel comprising a polarizer. The polarizer film includes: the polarizer comprises a first protective layer, a second protective layer and a polarizer, wherein the first protective layer, the second protective layer and the polarizer are arranged in a stacked mode; the attaching strength between the first protective layer and the second protective layer is smaller than that between the second protective layer and the polarizer. The manufacturing method of the display panel comprises the following steps: after the polarizer film is attached to the display panel body, peeling the first protective layer from the second protective layer to enable the second protective layer to remain on the surface of the polarizer; and after the first protective layer is stripped, carrying out optical detection on the display panel body attached with the second protective layer and the polaroid.
Description
Technical Field
The invention relates to the technical field of display, in particular to a method for manufacturing a polarizer film and a display panel.
Background
Currently, display technologies have penetrated various aspects of people's daily lives, and accordingly, more and more materials and technologies are used for display screens. Nowadays, the mainstream display screens mainly include liquid crystal display screens and organic light emitting display panels. The organic light-emitting display panel has the advantages that the self-luminous performance of the organic light-emitting display panel is higher than that of a liquid crystal display screen, and the backlight module which consumes most energy is omitted, so that the organic light-emitting display panel has the advantage of energy saving.
However, due to the self-luminous characteristic of the organic light emitting display panel, ambient light from the outside can directly enter the panel and is reflected by metal in the panel, so that the display contrast ratio is reduced.
Disclosure of Invention
The embodiment of the invention provides a polarizer film and a manufacturing method of a display panel, which can improve the production efficiency of the display panel comprising a polarizer.
In one aspect, an embodiment of the present invention provides a polarizer film, including:
the polarizer comprises a first protective layer, a second protective layer and a polarizer, wherein the first protective layer, the second protective layer and the polarizer are arranged in a stacked mode;
the attaching strength between the first protective layer and the second protective layer is smaller than that between the second protective layer and the polarizer.
Optionally, the polarizer film further includes:
the first adhesive layer is positioned between the first protective layer and the second protective layer;
and the second adhesive layer is positioned between the second protective layer and the polaroid.
Optionally, the first glue layer includes a first surface and a second surface, wherein the first surface is in contact with the first protection layer, the second surface is in contact with the second protection layer, and an adhesive force between the first surface and the first protection layer is greater than an adhesive force between the second surface and the second protection layer.
Optionally, the second adhesive layer includes a third surface and a fourth surface, wherein the third surface is in contact with the second protective layer, the fourth surface is in contact with the polarizer, and an adhesive force between the third surface and the second protective layer is smaller than an adhesive force between the fourth surface and the polarizer.
Optionally, the second adhesive layer includes a third surface and a fourth surface, wherein the third surface is in contact with the second protective layer, the fourth surface is in contact with the polarizer, and an adhesive force between the third surface and the second protective layer is greater than an adhesive force between the fourth surface and the polarizer.
Optionally, the optical transmittance of the first protective layer is less than the optical transmittance of the second protective layer.
Optionally, the haze of the first protective layer is greater than the haze of the second protective layer.
On the other hand, an embodiment of the present invention further provides a method for manufacturing a display panel, including:
providing a display panel body and the polarizer film;
attaching the polarizer film to the light emergent side of the display panel body, wherein the display panel body is positioned on one side of the polarizer film, which is far away from the first protective layer;
after the polarizer film is attached to the display panel body, peeling the first protective layer from the second protective layer to enable the second protective layer to remain on the surface of the polarizer;
and after the first protective layer is stripped, carrying out optical detection on the display panel body attached with the second protective layer and the polaroid.
Optionally, the method for manufacturing a display panel further includes:
and after the process of optically detecting the display panel body attached with the second protective layer and the polaroid, attaching a cover plate to one side of the second protective layer, which is far away from the polaroid.
Optionally, the method for manufacturing a display panel further includes:
after the process of optically inspecting the display panel body to which the second protective layer and the polarizer are attached, peeling the second protective layer from the polarizer;
and after the second protective layer is stripped from the polaroid, attaching a cover plate to one side of the polaroid, which is far away from the display panel body.
Optionally, the polarizer film includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is located between the first protective layer and the second protective layer, and the second adhesive layer is located between the second protective layer and the polarizer;
the process of peeling the second protective layer from the polarizer includes:
stripping the second protective layer from the polaroid to enable the second adhesive layer to remain on the surface of the polaroid;
the process of attaching the cover plate to one side of the polarizer, which is far away from the display panel body, comprises the following steps:
and attaching a cover plate to one side of the second adhesive layer, which is far away from the polaroid, so that the cover plate is attached to the polaroid through the second adhesive layer.
Optionally, the process of optically inspecting the display panel body to which the second protective layer and the polarizer are attached includes:
detecting the brightness of the pixel on the side, away from the display panel body, of the second protective layer by using an optical instrument;
calculating to obtain compensation data according to the brightness;
and writing the compensation data into a compensation module.
In the manufacturing method of the polarizer film and the display panel in the embodiment of the invention, in the first protective layer, the second protective layer and the polarizer which are sequentially laminated, the adhesive strength between the first protective layer and the second protective layer is set to be smaller than the adhesive strength between the second protective layer and the polarizer, namely, when the first protective layer is stripped from the polarizer, the first protective layer is stripped in preference to the second protective layer, and the second protective layer is remained on the surface of the polarizer. When the display panel uses the polarizer film in the embodiment of the invention, the first protective layer can be conveniently torn off before the optical test is carried out, and the second protective layer is still remained on the surface of the polarizer, at this time, namely, the method can eliminate the dirt and foreign matters generated in the prior process, then carry out the optical test on the display panel with the second protective layer and the polaroid attached on the surface, the test process can not be influenced by the dirt and the foreign matters generated in the prior process, thereby improving the accuracy of the optical test, after the test is finished, the second protective layer remained on the surface of the polaroid is directly used for protecting the polaroid in the subsequent shipment process or the process without attaching an additional protective film again, so that, compared with the prior art, the process of re-attaching the protective film once is saved, thereby improving the production efficiency of the display panel comprising the polaroid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a polarizer film according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the polarizer film of FIG. 1 in a state where a first protective layer is peeled off;
FIG. 3 is a schematic structural diagram of another polarizer film according to an embodiment of the present invention;
FIG. 4 is a schematic view showing the polarizer film of FIG. 3 in a state where the first protective layer is peeled off;
FIG. 5 is a schematic flow chart illustrating a method for fabricating a display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a variation of the structure of a film layer corresponding to each step in FIG. 5;
FIG. 7 is a schematic flow chart illustrating a method for fabricating a display panel according to another embodiment of the present invention;
FIG. 8 is a schematic view of a variation of the structure of a film layer corresponding to the steps in FIG. 7;
FIG. 9 is a schematic flow chart illustrating a method for fabricating a display panel according to another embodiment of the present invention;
FIG. 10 is a schematic view of a variation of the structure of a film layer corresponding to the steps in FIG. 9;
FIG. 11 is a schematic flow chart illustrating a method for fabricating a display panel according to another embodiment of the present invention;
FIG. 12 is a schematic view of a variation of the structure of a film layer corresponding to the steps in FIG. 11;
fig. 13 is a flowchart illustrating step 104 in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Before describing the embodiments of the present invention in detail, a process of finding problems in the prior art by the inventor is described first, in a manufacturing process of an organic light emitting display panel, after a polarizer is attached, a protective film attached to a surface of the polarizer needs to be torn off to remove dirt and foreign matters generated in a previous process, and then an optical test is performed to perform the optical test on a clean surface of the display panel, so as to improve accuracy of the optical test.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a polarizer film in an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a state of the polarizer film in fig. 1 when a first protective layer is peeled off, and an embodiment of the present invention provides a polarizer film, including: the polarizer comprises a first protective layer 11, a second protective layer 12 and a polarizer 2 which are arranged in a laminated mode, wherein the second protective layer 12 is located between the first protective layer 11 and the polarizer 2; the adhesion strength between the first protective layer 11 and the second protective layer 12 is smaller than the adhesion strength between the second protective layer 12 and the polarizer 2.
Specifically, the second protection layer 12 is attached to the surface of the polarizer 2, and the first protection layer 11 is attached to the surface of the second protection layer 12 away from the polarizer 2. The adhesion strength between the first protective layer 11 and the second protective layer 12 is smaller than the adhesion strength between the second protective layer 12 and the polarizer 2, that is, when the first protective layer 11 is peeled off from the polarizer 2, the first protective layer 11 is peeled off in preference to the second protective layer 12, and the second protective layer 12 remains on the surface of the polarizer 2. When the display panel uses the polarizer film in the embodiment of the invention, before the optical test is carried out, the first protective layer 11 can be conveniently torn off, and the second protective layer 12 still remains on the surface of the polarizer 2, at this time, the dirt and foreign matters generated in the prior process can be eliminated, then the optical test is carried out on the display panel with the second protective layer 12 and the polarizer 2 attached to the surface, the test process is not influenced by the dirt and foreign matters generated in the prior process, so that the accuracy of the optical test is improved, after the test is finished, no additional protective film needs to be attached again, the second protective layer 12 remaining on the surface of the polarizer 2 is directly used for realizing the protection of the polarizer in the subsequent shipment process or process, and thus, compared with the prior art, the protective film is saved by one-time of attaching again, thereby improving the production efficiency of the display panel including the polarizer.
As shown in fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of another polarizer film in an embodiment of the invention, fig. 4 is a schematic structural diagram of a state of the polarizer film in fig. 3 when the first protective layer is peeled off, and optionally, the polarizer film further includes: the first adhesive layer 31, the first adhesive layer 31 is located between the first protective layer 11 and the second protective layer 12; and a second adhesive layer 32, wherein the second adhesive layer 32 is located between the second protective layer 12 and the polarizer 2.
Specifically, the first protection layer 11 is attached to the surface of the second protection layer 12 through the first adhesive layer 31, the second protection layer 12 is attached to the surface of the polarizer 2 through the second adhesive layer 32, and the adhesion forces of the first adhesive layer 31 and the second adhesive layer 32 are different, so that the attachment strength between the first protection layer 11 and the second protection layer 12 is smaller than the attachment strength between the second protection layer 12 and the polarizer 2. It is understood that, in other practical embodiments, the first protection layer 11 may also be attached to the second protection layer 12 by other attachment methods, and the second protection layer 12 may also be attached to the polarizer 2 by other attachment methods, as long as the attachment strength between the first protection layer 11 and the second protection layer 12 is ensured to be smaller than the attachment strength between the second protection layer 12 and the polarizer 2. In addition, the second adhesive layer 32 with strong adhesion may also prevent the polarizer 2 from curling and deforming on the surface of the polarizer 2.
Alternatively, as shown in fig. 3 and 4, the first glue layer 31 includes a first surface 301 and a second surface 302, wherein the first surface 301 is in contact with the first protection layer 11, the second surface 302 is in contact with the second protection layer 12, and the adhesive force between the first surface 301 and the first protection layer 11 is greater than the adhesive force between the second surface 302 and the second protection layer 12.
Specifically, the adhesive force between the first surface 301 and the first protective layer 11 is greater than the adhesive force between the second surface 302 and the second protective layer 12, that is, when the first protective layer 11 is peeled off from the second protective layer 12, the second surface 302 is more easily separated from the second protective layer 12, so that the first glue layer 31 and the first protective layer 11 are peeled off together, and the glue layer is prevented from remaining on the second protective layer 12 after the first protective layer 11 is peeled off, which causes a foreign substance in a subsequent process to adhere to the surface of the second protective layer 12.
Optionally, the second adhesive layer 32 includes a third surface 303 and a fourth surface 304, where the third surface 303 is in contact with the second protection layer 12, the fourth surface 304 is in contact with the polarizer 2, and an adhesive force between the third surface 303 and the second protection layer 12 is smaller than an adhesive force between the fourth surface 304 and the polarizer 2.
Specifically, the adhesive force between the third surface 303 and the second protection layer 12 is smaller than the adhesive force between the fourth surface 304 and the polarizer 2, that is, when the second protection layer 12 is peeled off from the polarizer 2, the third surface 303 is more easily separated from the second protection layer 12, so that after the second protection layer 12 is peeled off, the second adhesive layer 32 remains on the surface of the polarizer 2, so that after the second protection layer 12 is peeled off, a cover plate (not shown in the figure) is directly attached to one side of the second adhesive layer 32, which is away from the polarizer 2, so that the cover plate can be directly attached to the surface of the polarizer 2 through the second adhesive layer 32 remaining on the surface of the polarizer 2, thereby completing the manufacturing of the whole display panel without additionally providing an adhesive layer for attaching the cover plate.
Optionally, the second adhesive layer 32 includes a third surface 303 and a fourth surface 304, where the third surface 303 is in contact with the second protection layer 12, the fourth surface 304 is in contact with the polarizer 2, and the adhesive force between the third surface 303 and the second protection layer 12 is greater than the adhesive force between the fourth surface 304 and the polarizer 2.
Specifically, the adhesive force between the third surface 303 and the second protection layer 12 is greater than the adhesive force between the fourth surface 304 and the polarizer 2, that is, when the second protection layer 12 is peeled off from the polarizer 2, the fourth surface 304 is more easily separated from the polarizer 2, so that after the second protection layer 12 is peeled off, the second adhesive layer 32 is simultaneously attached to the second protection layer 12 and is peeled off together, and thus, the cover plate is conveniently attached to the polarizer 2 through other attaching processes.
Optionally, the optical transmittance of the first protection layer 11 is smaller than the optical transmittance of the second protection layer 12, and the protection layer with a lower optical transmittance is lower in cost, so that the optical transmittance of the first protection layer 11 is lower, which can reduce cost.
Optionally, the haze of the first protection layer 11 is greater than the haze of the second protection layer 12, and the cost of the protection layer with a greater haze is lower, so that the haze of the first protection layer 11 is higher, which can reduce the cost.
As shown in fig. 5 and fig. 6, fig. 5 is a schematic flow chart of a method for manufacturing a display panel in an embodiment of the present invention, and fig. 6 is a schematic diagram of a film layer structure change corresponding to each step in fig. 5, where an embodiment of the present invention provides a method for manufacturing a display panel, including:
in this step, the specific structure of the polarizer film 200 may be the same as that of the polarizer film in any of the above embodiments, and will not be described herein.
102, attaching the polarizer film 200 to the light-emitting side of the display panel body 100, wherein the display panel body 100 is located on the side, away from the first protective layer 11, of the polarizer film 200;
after the polarizer film 200 is attached to the display panel body 100, the following steps are performed:
103, stripping the first protective layer 11 from the second protective layer 12 to make the second protective layer 12 remain on the surface of the polarizer 2;
Specifically, the second protection layer 12 is attached to the surface of the polarizer 2, and the first protection layer 11 is attached to the surface of the second protection layer 12 away from the polarizer 2. The adhesion strength between the first protective layer 11 and the second protective layer 12 is smaller than the adhesion strength between the second protective layer 12 and the polarizer 2, that is, when the first protective layer 11 is peeled off from the polarizer 2, the first protective layer 11 is peeled off in preference to the second protective layer 12, and the second protective layer 12 remains on the surface of the polarizer 2. When the display panel uses the polarizer film in the embodiment of the invention, before the optical test is carried out, the first protective layer 11 can be conveniently torn off, and the second protective layer 12 still remains on the surface of the polarizer 2, at this time, the dirt and foreign matters generated in the prior process can be eliminated, then the optical test is carried out on the display panel with the second protective layer 12 and the polarizer 2 attached to the surface, the test process is not influenced by the dirt and foreign matters generated in the prior process, so that the accuracy of the optical test is improved, after the test is finished, no additional protective film needs to be attached again, the second protective layer 12 remaining on the surface of the polarizer 2 is directly used for realizing the protection of the polarizer in the subsequent shipment process or process, and thus, compared with the prior art, the protective film is saved by one-time of attaching again, thereby improving the production efficiency of the display panel including the polarizer.
Optionally, on the basis of the embodiments shown in fig. 5 and fig. 6, as shown in fig. 7 and fig. 8, fig. 7 is a schematic flow chart of another display panel manufacturing method in an embodiment of the present invention, fig. 8 is a schematic diagram of a film layer structure change corresponding to each step in fig. 7, and the display panel manufacturing method further includes: after the process of optically inspecting the display panel body 100 with the second protection layer 12 and the polarizer 2 attached thereon, step 105 is performed to attach a cover plate 300 to a side of the second protection layer 12 away from the polarizer 2. Specifically, after the optical inspection is performed, the cover sheet 300 may be directly attached on the display panel to which the second protective layer 12 is attached without peeling the second protective layer 12, so as to realize the integral packaging of the display panel.
Optionally, on the basis of the embodiments shown in fig. 5 and fig. 6, as shown in fig. 9 and fig. 10, fig. 9 is a schematic flow chart of another display panel manufacturing method in an embodiment of the present invention, fig. 10 is a schematic diagram of a film layer structure change corresponding to each step in fig. 9, and the display panel manufacturing method further includes:
after the step 104 of optically inspecting the display panel body 100 with the second protective layer 12 and the polarizer 2 attached thereon, the process proceeds to step 105 of peeling the second protective layer 12 from the polarizer 2;
after the second passivation layer 12 is stripped from the polarizer 2 in step 105, step 106 is performed to attach a cover plate 300 to the polarizer 2 at a side away from the display panel body 100.
Specifically, the embodiment shown in fig. 9 and 10 is different from the embodiment shown in fig. 7 and 8, after the optical inspection, the second protection layer 12 is peeled off from the polarizer 2, and then the cover plate 300 is attached to implement the integral encapsulation of the display panel, so that the adverse effect of the dirt on the second protection layer 12 on the display can be avoided, and the adverse effect of the second protection layer 12 itself on the display screen can be avoided.
Alternatively, on the basis of the embodiments shown in fig. 9 and 10, as shown in fig. 11 and 12, fig. 11 is a schematic flow chart of another display panel manufacturing method in an embodiment of the present invention, fig. 12 is a schematic diagram of a film layer structure change corresponding to each step in fig. 11, and the polarizer film 200 includes a first adhesive layer 31 and a second adhesive layer 32, where the first adhesive layer 31 is located between the first protective layer 11 and the second protective layer 12, and the second adhesive layer 32 is located between the second protective layer 12 and the polarizer 2;
the step 105 of peeling the second protective layer 12 from the polarizer 2 includes: stripping the second protective layer 12 from the polarizer 2 to make the second adhesive layer 32 remain on the surface of the polarizer 2;
in this step, the adhesive force between the third surface 303 and the second protection layer 12 is smaller than the adhesive force between the fourth surface 304 and the polarizer 2, so that the third surface 303 is more easily separated from the second protection layer 12 when the second protection layer 12 is peeled off from the polarizer 2, so that the second adhesive layer 32 remains on the surface of the polarizer 2 after the second protection layer 12 is peeled off.
The step 106 of attaching the cover plate 300 to the polarizer 2 at the side away from the display panel body 100 includes: the cover plate 300 is attached to the side of the second adhesive layer 32 away from the polarizer 2, so that the cover plate 300 is attached to the polarizer 2 through the second adhesive layer 32.
In this step, since the cover plate 300 directly uses the second adhesive layer 32 previously used for attaching the second protective layer 12 to achieve adhesion with the polarizer 2, an additional adhesion process of the cover plate 300 can be saved.
Optionally, as shown in fig. 13, fig. 13 is a detailed flowchart of step 104 in the embodiment of the present invention, and the step 104 of optically detecting the display panel body 100 attached with the second protective layer 12 and the polarizer 2 includes:
step 1041, detecting the brightness of the pixel on the side of the second protection layer 12 away from the display panel body 100 by using an optical instrument;
and 1043, writing the compensation data into the compensation module.
Specifically, the compensation module may be a storage module integrated on the display panel or a storage module in the external driving chip, and after the entire display device is manufactured, the compensation data in the compensation module is read in the normal working process of the display panel, and the picture compensation is performed according to the compensation data, so as to improve the picture display effect of the display panel.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (14)
1. A polarizer film, comprising:
the polarizer comprises a first protective layer, a second protective layer and a polarizer, wherein the first protective layer, the second protective layer and the polarizer are arranged in a stacked mode;
the attaching strength between the first protective layer and the second protective layer is smaller than that between the second protective layer and the polarizer;
the first adhesive layer is positioned between the first protective layer and the second protective layer;
the second adhesive layer is positioned between the second protective layer and the polaroid;
the first adhesive layer comprises a first surface and a second surface, wherein the first surface is in contact with the first protective layer, the second surface is in contact with the second protective layer, and the adhesive force between the first surface and the first protective layer is greater than the adhesive force between the second surface and the second protective layer;
the second adhesive layer comprises a third surface and a fourth surface, wherein the third surface is in contact with the second protective layer, the fourth surface is in contact with the polarizer, and the adhesive force between the third surface and the second protective layer is smaller than the adhesive force between the fourth surface and the polarizer;
or the second adhesive layer comprises a third surface and a fourth surface, wherein the third surface is in contact with the second protective layer, the fourth surface is in contact with the polarizer, and the adhesive force between the third surface and the second protective layer is greater than the adhesive force between the fourth surface and the polarizer;
the display panel comprises a display panel body, a polarizer film, a first protective layer, a second protective layer and a polarizer, wherein the polarizer film is used for being attached to the light-emitting side of the display panel body, the display panel body is located on one side of the first protective layer, and the first protective layer is used for being peeled off before the display panel body with the second protective layer and the polarizer is subjected to optical detection.
2. A polarizer film according to claim 1,
the optical transmittance of the first protective layer is smaller than that of the second protective layer.
3. A polarizer film according to claim 1,
the haze of the first protective layer is greater than the haze of the second protective layer.
4. A method for manufacturing a display panel, which is used for the polarizer film according to any one of claims 1 to 3, the method comprising:
providing a display panel body and a polarizer film, wherein the polarizer film comprises a first protective layer, a second protective layer and a polarizer which are arranged in a laminated mode, the second protective layer is located between the first protective layer and the polarizer, and the attaching strength between the first protective layer and the second protective layer is smaller than that between the second protective layer and the polarizer;
attaching the polarizer film to the light emergent side of the display panel body, wherein the display panel body is positioned on one side of the polarizer film, which is far away from the first protective layer;
after the polarizer film is attached to the display panel body, peeling the first protective layer from the second protective layer to enable the second protective layer to remain on the surface of the polarizer;
and after the first protective layer is stripped, carrying out optical detection on the display panel body attached with the second protective layer and the polaroid.
5. The method for manufacturing a display panel according to claim 4, further comprising:
and after the process of optically detecting the display panel body attached with the second protective layer and the polaroid, attaching a cover plate to one side of the second protective layer, which is far away from the polaroid.
6. The method for manufacturing a display panel according to claim 4, further comprising:
after the process of optically inspecting the display panel body to which the second protective layer and the polarizer are attached, peeling the second protective layer from the polarizer;
and after the second protective layer is stripped from the polaroid, attaching a cover plate to one side of the polaroid, which is far away from the display panel body.
7. The method for manufacturing a display panel according to claim 6,
the polarizer film comprises a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is positioned between the first protective layer and the second protective layer, and the second adhesive layer is positioned between the second protective layer and the polarizer;
the process of peeling the second protective layer from the polarizer includes:
stripping the second protective layer from the polaroid to enable the second adhesive layer to remain on the surface of the polaroid;
the process of attaching the cover plate to one side of the polarizer, which is far away from the display panel body, comprises the following steps:
and attaching a cover plate to one side of the second adhesive layer, which is far away from the polaroid, so that the cover plate is attached to the polaroid through the second adhesive layer.
8. The method for manufacturing a display panel according to claim 4,
the process of optically inspecting the display panel body to which the second protective layer and the polarizer are attached includes:
detecting the brightness of the pixel on the side, away from the display panel body, of the second protective layer by using an optical instrument;
calculating to obtain compensation data according to the brightness;
and writing the compensation data into a compensation module.
9. The method for manufacturing a display panel according to claim 4, wherein the polarizer film further comprises:
the first adhesive layer is positioned between the first protective layer and the second protective layer;
and the second adhesive layer is positioned between the second protective layer and the polaroid.
10. The method for manufacturing a display panel according to claim 9,
the first glue layer comprises a first surface and a second surface, wherein the first surface is in contact with the first protective layer, the second surface is in contact with the second protective layer, and the adhesive force between the first surface and the first protective layer is larger than the adhesive force between the second surface and the second protective layer.
11. The method for manufacturing a display panel according to claim 9,
the second adhesive layer comprises a third surface and a fourth surface, wherein the third surface is in contact with the second protective layer, the fourth surface is in contact with the polarizer, and the adhesive force between the third surface and the second protective layer is smaller than the adhesive force between the fourth surface and the polarizer.
12. The method for manufacturing a display panel according to claim 9,
the second adhesive layer comprises a third surface and a fourth surface, wherein the third surface is in contact with the second protective layer, the fourth surface is in contact with the polarizer, and the adhesive force between the third surface and the second protective layer is larger than the adhesive force between the fourth surface and the polarizer.
13. The method for manufacturing a display panel according to claim 4,
the optical transmittance of the first protective layer is smaller than that of the second protective layer.
14. The method for manufacturing a display panel according to claim 4,
the haze of the first protective layer is greater than the haze of the second protective layer.
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| CN112078196A (en) * | 2020-09-09 | 2020-12-15 | 武汉华星光电半导体显示技术有限公司 | Composite film layer and display device |
| CN113910690B (en) * | 2021-10-20 | 2023-01-03 | 业成科技（成都）有限公司 | Light-tight composite layer and light-transmitting protective film for light-tight layer |
| CN114292603A (en) * | 2021-12-27 | 2022-04-08 | 霸州市云谷电子科技有限公司 | Camera hole protective film, display device and display device detection method |
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