CN109713163B - Organic light-emitting display panel, manufacturing method thereof and display device - Google Patents
Organic light-emitting display panel, manufacturing method thereof and display device Download PDFInfo
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- CN109713163B CN109713163B CN201811614551.1A CN201811614551A CN109713163B CN 109713163 B CN109713163 B CN 109713163B CN 201811614551 A CN201811614551 A CN 201811614551A CN 109713163 B CN109713163 B CN 109713163B
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Abstract
The embodiment of the invention provides an organic light-emitting display panel, a manufacturing method thereof and a display device, relates to the technical field of display, and can improve the resolution of the organic light-emitting display panel. The organic light emitting display panel includes: the display film layer comprises a driving device film layer and a light emitting device film layer which are arranged in a stacked mode, the driving device film layer is located on the non-light-emitting side of the light emitting device film layer, and a light valve layer first alignment mark is arranged on the driving device film layer; the light valve film layer is positioned on the light emitting side of the light emitting device film layer and comprises a first electrode layer, a liquid crystal layer and a second electrode layer which are sequentially stacked, a supporting gasket structure is arranged between the first electrode layer and the second electrode layer, and a light valve layer second alignment mark is arranged in the light valve film layer.
Description
Technical Field
The invention relates to the technical field of display, in particular to an organic light-emitting display panel, a manufacturing method thereof and a display device.
Background
With the development of Display technology, Organic Light Emitting Display (OLED) panels are increasingly widely used due to their excellent characteristics of self-luminescence, high brightness, wide viewing angle, fast response, etc.
However, the resolution of the related art organic light emitting display panel is low due to process accuracy limitations in the fabrication of light emitting devices in organic light emitting panels.
Disclosure of Invention
The embodiment of the invention provides an organic light-emitting display panel, a manufacturing method thereof and a display device, which can improve the resolution of the organic light-emitting display panel.
In one aspect, an embodiment of the present invention provides an organic light emitting display panel including:
the display film layer comprises a driving device film layer and a light emitting device film layer which are arranged in a stacked mode, the driving device film layer is located on the non-light-emitting side of the light emitting device film layer, and a light valve layer first alignment mark is arranged on the driving device film layer;
the light valve film layer is positioned on the light emitting side of the light emitting device film layer and comprises a first electrode layer, a liquid crystal layer and a second electrode layer which are sequentially stacked, a supporting gasket structure is arranged between the first electrode layer and the second electrode layer, and a light valve layer second alignment mark is arranged in the light valve film layer.
Optionally, the first electrode layer is located on one side of the liquid crystal layer close to the display film layer, the second electrode layer is located on one side of the liquid crystal layer far away from the display film layer, and the second electrode layer is provided with the second alignment mark of the light valve layer.
Optionally, the light valve film further includes a polarizer located on one side of the first electrode layer close to the display film, and the polarizer is a liquid crystal coating material.
Optionally, the display film layer further comprises an encapsulation layer located on a side of the light emitting device film layer away from the driving device film layer;
the organic light emitting display panel further comprises a first adhesive layer positioned between the polarizer and the packaging layer.
Optionally, the organic light emitting display panel further includes:
and the birefringent film layer is positioned on one side of the light valve film layer, which is far away from the display film layer, and is made of a liquid crystal coating material.
Optionally, the light valve film layer further includes a light valve substrate located on a side of the second electrode layer away from the first electrode layer;
the organic light emitting display panel further comprises a second adhesive layer positioned between the light valve substrate and the birefringent film layer.
Optionally, the organic light emitting display panel further includes:
a first transparent polyimide layer between the first electrode layer and the polarizer.
Optionally, the organic light emitting display panel further includes:
and the second transparent polyimide layer is positioned on the surface of one side, away from the display film layer, of the birefringent film layer.
On the other hand, an embodiment of the invention further provides a display device, which includes the organic light emitting display panel.
In another aspect, an embodiment of the present invention further provides a method for manufacturing an organic light emitting display panel, including:
forming a first film layer group, a second film layer group and a first liquid crystal substrate;
the process of forming the first membrane layer set includes:
forming a display substrate;
forming a driving device film layer on the display substrate, wherein a first alignment mark of a light valve layer is arranged on the driving device film layer;
forming a light emitting device film layer on the driving device film layer, wherein the driving device film layer is positioned on the non-light emitting side of the light emitting device film layer;
forming an encapsulation layer on the light emitting device film layer;
the second membrane layer group comprises a first electrode layer;
attaching the second film group to the surface of the first film group through a first adhesive layer to form a second liquid crystal substrate, wherein the second film group is positioned on one side of the packaging layer, which is far away from the light-emitting device film layer;
the process of forming the first liquid crystal substrate includes:
forming a light valve substrate;
forming a second electrode layer on the light valve substrate, and forming a support pad structure and a second alignment mark of the light valve layer on one side of the second electrode layer away from the light valve substrate;
and aligning and assembling the first liquid crystal substrate and the second liquid crystal substrate through the first alignment mark of the light valve layer and the second alignment mark of the light valve layer, forming a liquid crystal layer between the first electrode layer and the second electrode layer, wherein the second electrode layer is positioned on one side of the light valve substrate close to the first electrode layer, and the first electrode layer is positioned on one side of the display substrate close to the second electrode layer.
Optionally, the process of forming the second membrane layer set comprises:
coating a first transparent polyimide layer on a glass substrate;
forming the first electrode layer on the first transparent polyimide layer;
forming a first alignment layer on the surface of the first electrode layer;
removing the glass substrate, coating a first liquid crystal coating on one side of the first transparent polyimide layer, which is far away from the first electrode layer, wherein the first liquid crystal coating is a polarizer, and enabling the first transparent polyimide layer, the first electrode layer, the first alignment layer and the polarizer to serve as a second film layer group;
the process of forming the second liquid crystal substrate includes:
attaching the second film layer group to the surface of the first film layer group through a first adhesive layer, wherein the packaging layer of the first film layer group is positioned at one side close to the second film layer group;
before the process of aligning and assembling the first liquid crystal substrate and the second liquid crystal substrate by the first alignment mark of the light valve layer and the second alignment mark of the light valve layer, the method further includes:
and forming a second alignment layer on the surface of the second electrode layer with the support gasket structure, which is far away from the light valve substrate.
Optionally, the method for manufacturing an organic light emitting display panel further includes:
forming a third film layer set comprising a second transparent polyimide layer and a second liquid crystal coating, the second liquid crystal coating being a birefringent film layer;
and attaching the third film group to the surface of one side of the light valve substrate, which is far away from the second electrode layer, through a second adhesive layer.
In the organic light-emitting display panel, the manufacturing method thereof and the display device in the embodiment of the invention, the light valve film layer is arranged to be matched with the display film layer, so that the pixels can be emitted and displayed at different positions in different time-sharing modes, namely, the same picture is displayed by the pixels at more positions, thus, the size of the pixels is not changed physically, but the display resolution is improved. Set up the first counterpoint mark of light valve layer in the drive device rete that shows the rete, set up light valve layer second counterpoint mark in the light valve rete including supporting liner structure, when the rete including supporting liner structure and light valve layer second counterpoint mark is laminated with the demonstration rete, counterpoint through the first counterpoint mark of light valve layer and light valve layer second counterpoint mark, like this, after light valve rete and demonstration rete laminating, guarantee to support the liner structure and be located the non-display region that the demonstration rete was injectd, thereby the harmful effects of support liner structure to the display screen has been reduced.
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 cross-sectional view illustrating an organic light emitting display panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a film layer of the driving device in FIG. 1;
FIG. 3 is a schematic structural diagram of the second electrode layer in FIG. 1;
FIG. 4 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for fabricating an organic light emitting display panel according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating one embodiment of forming a first membrane layer set;
FIG. 7 is a schematic diagram of a process for forming a first liquid crystal substrate according to an embodiment of the invention;
fig. 8 is a schematic flow chart illustrating a process of forming a second membrane layer set according to an embodiment of the 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, first, a process of finding problems in the prior art by the inventor is described, in order to improve the display resolution, a technical solution of using a display film layer in cooperation with a light valve film layer is presented, and a function of shifting pixels can be realized by using the action of the light valve film layer in cooperation with other structures, so that pixels at the same physical position can be displayed at different positions in a time-sharing manner, for example, a pixel at a first position is displayed as a part of details in one picture at a first time, a pixel at a second position is displayed as another part of details in the same picture at a second time, and the pixels are displayed at different positions in a time-sharing manner, that is, the same picture is displayed by using pixels at more positions, so that the size of the pixels is not changed physically, but the display resolution is improved. The light valve film layer includes a liquid crystal cell structure, the light valve film layer is located on the light-emitting side of the display film layer, and the conversion of the polarization direction is realized through the control of the liquid crystal.
As shown in fig. 1, fig. 1 is a schematic cross-sectional structure diagram of an organic light emitting display panel according to an embodiment of the present invention, and an embodiment of the present invention provides an organic light emitting display panel, including: the display film layer 1 includes a driving device film layer 11 and a light emitting device film layer 12 which are stacked, the driving device film layer 11 is located on a non-light-emitting side of the light emitting device film layer 12, as shown in fig. 2, fig. 2 is a schematic structural diagram of the driving device film layer in fig. 1, and a light valve layer first alignment mark 21 is arranged on the driving device film layer 11; the light valve film layer 3 is located on the light emitting side of the light emitting device film layer 12, the light valve film layer 3 includes a first electrode layer 31, a liquid crystal layer 33, and a second electrode layer 32, which are sequentially stacked, a supporting pad structure is disposed between the first electrode layer 31 and the second electrode layer 32, and a second alignment mark of the light valve layer is disposed in the light valve film layer 3, for example, as shown in fig. 3, fig. 3 is a schematic structural diagram of the second electrode layer in fig. 1, and a supporting pad structure 4 and a second alignment mark 22 of the light valve layer are disposed on the second electrode layer.
Specifically, the light emitting device film 12 includes a light emitting device, the light emitting device includes an anode, a cathode and an organic light emitting layer, the organic light emitting layer is located between the anode and the cathode, and under the voltage action of the anode and the cathode, electrons and holes are combined in the organic light emitting layer to realize light emission, the driving device film 11 includes a pixel driving circuit located in the display region and used for driving the light emitting device located in the display region, and the driving device film 11 further includes other peripheral circuits such as a scan driving circuit located in the non-display region, so that the light valve layer first alignment mark 21 is disposed on the driving device film 11, that is, the position of the non-display region can be marked through the light valve layer first alignment mark 21. The first electrode layer 31 and the second electrode layer 32 in the light valve film layer 3 are used for controlling the liquid crystal deflection in the liquid crystal layer 33, and further realize the conversion of polarized light through the deflection of liquid crystal, in order to control the liquid crystal box thickness of the liquid crystal layer 33, a supporting pad structure is arranged between the first electrode layer 31 and the second electrode layer 32, in addition, a light valve layer second alignment mark 22 is arranged in the light valve film layer 3, namely, when the supporting pad structure in the light valve film layer 3 is manufactured, the supporting pad structure is manufactured in a non-display area, meanwhile, a light valve layer second alignment mark 22 is arranged in the light valve film layer 3, the light valve layer first alignment mark 21 corresponds to the light valve layer second alignment mark 22, in the manufacturing process of the organic light emitting display panel, after the display film layer 1 is manufactured, and the film layer including the supporting pad structure and the light valve layer second alignment mark 22 in the light valve film layer 3 is manufactured, when the film layer including the support pad structure and the second alignment mark 22 of the light valve layer is bonded to the display film layer 1, the first alignment mark 21 of the light valve layer on the driving device film layer 11 and the second alignment mark 22 of the light valve layer in the light valve film layer 3 are aligned, so that the support pad structure is ensured to be located in the non-display area defined by the display film layer 1 after the light valve film layer 3 is bonded to the display film layer 1.
The organic light-emitting display panel in the embodiment of the invention can enable the pixels to emit and display at different positions in different time-sharing modes by arranging the light valve film layer to be matched with the display film layer, namely, the same picture is displayed by the pixels at more positions, so that the size of the pixels is not changed physically, but the display resolution is improved. Set up the first counterpoint mark of light valve layer in the drive device rete that shows the rete, set up light valve layer second counterpoint mark in the light valve rete including supporting liner structure, when the rete including supporting liner structure and light valve layer second counterpoint mark is laminated with the demonstration rete, counterpoint through the first counterpoint mark of light valve layer and light valve layer second counterpoint mark, like this, after light valve rete and demonstration rete laminating, guarantee to support the liner structure and be located the non-display region that the demonstration rete was injectd, thereby the harmful effects of support liner structure to the display screen has been reduced.
Optionally, the first electrode layer 31 is located on a side of the liquid crystal layer 33 close to the display film layer 1, the second electrode layer 32 is located on a side of the liquid crystal layer 33 away from the display film layer 1, and the second alignment mark 22 of the light valve layer is disposed on the second electrode layer 32.
Specifically, all set up support liner structure 4 and light valve layer second counterpoint mark 22 on second electrode layer 32, after showing rete 1 preparation completion, attach first electrode layer 31 on showing rete 1, then, drop into liquid crystal and form liquid crystal layer 33, counterpoint the laminating with second electrode layer 32 simultaneously, form the liquid crystal cell, in the laminating process, counterpoint through the first counterpoint mark 21 of light valve layer on the drive device rete 11 and the light valve layer second counterpoint mark 22 on the second electrode layer 32, can be in order to guarantee that the support liner structure 4 of preparation on second electrode layer 32 is located non-display area.
Optionally, the light valve film 3 further includes a polarizer 34 located on one side of the first electrode layer 31 close to the display film 1, and the polarizer 34 is a liquid crystal coating material.
Optionally, the display film layer 1 further includes an encapsulation layer 13 located on a side of the light emitting device film layer 12 away from the driving device film layer 11; the organic light emitting display panel further includes a first adhesive layer 41 between the polarizer 34 and the encapsulation layer 13.
Specifically, the encapsulation layer 13 is used to protect the light emitting device and other film layers in the light emitting device film layer 12 from external moisture, oxygen, and the like, the display film layer 1 is manufactured after being encapsulated by the encapsulation layer 13, and when the film layer including the polarizer 34 is attached to the surface of the display film layer 1, the first adhesive layer 41 is needed to achieve adhesion of the two.
Optionally, the organic light emitting display panel further includes: and the birefringent film layer 5 is positioned on one side of the light valve film layer 3, which is far away from the display film layer 1, and the birefringent film layer 5 is made of a liquid crystal coating material.
Specifically, compared with the prior art, the embodiment of the invention uses the liquid crystal layer material to realize the manufacture of the birefringent film layer 5, so that the thickness of the whole film layer can be further reduced.
It should be noted that, in the embodiment of the present invention, the organic light emitting display panel includes a polarizer 34 located on the light emitting side of the display film 1, and configured to convert the light emitted from the display film 1 into polarized light, a liquid crystal layer 33 located on the side of the polarizer 34 away from the display film 1, and configured to implement the function of the light valve in cooperation with the polarizer 34, so that the polarized light emitted from the polarizer 34 is converted between the polarized light in the first direction and the polarized light in the second direction, and a birefringent film 5 located on the side of the light valve film 3 away from the display film 1, where the birefringent film 5 is configured to transmit the polarized light in the first direction directly to emit the polarized light in the original direction, and emit the polarized light in the second direction after being refracted, and the output position of the birefringent film is different from the emission position of the polarized light in the first direction, and when the organic light emitting display panel is in, the first direction polarized light is emitted from the first position after passing through the birefringent film 5, and the liquid crystal layer 33 in the light valve film 3 is controlled to generate the second direction polarized light when each even frame, and the second direction polarized light is emitted from the second position after passing through the birefringent film 5.
Optionally, the light valve film layer 3 further includes a light valve substrate 35 located on the side of the second electrode layer 32 away from the first electrode layer 31; the organic light emitting display panel further includes a second adhesive layer 42 between the light valve substrate 35 and the birefringent film layer 5.
Specifically, the light valve substrate 35 is used as a substrate when the second electrode layer 32 is manufactured, and the second adhesive layer 42 is used for achieving adhesion between the birefringent film layer 5 and the light valve film layer 3.
Optionally, the organic light emitting display panel further includes: a first transparent polyimide layer 61 between the first electrode layer 31 and the polarizer 34. The first transparent polyimide layer 61 serves as a substrate when the first electrode layer 31 and the polarizer 34 are manufactured, and the film thickness of the organic light emitting display panel is further reduced by using a transparent polyimide material as the substrate compared to the prior art.
Optionally, the organic light emitting display panel further includes: and a second transparent polyimide layer 62 on the surface of the birefringent film layer 5 on the side away from the display film layer 1. The second transparent polyimide layer 62 serves as a substrate when the birefringent film layer 5 is manufactured, and the film thickness of the organic light-emitting display panel is further reduced by using a transparent polyimide material as the substrate, compared with the prior art.
As shown in fig. 4, fig. 4 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the embodiment of the present invention further provides a display device including the organic light emitting display panel 10.
Specifically, the specific structure of the organic light emitting display panel 10 is the same as that of the above embodiments, and is not described herein again. The display device can be any electronic equipment with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic paper book or a television.
As shown in fig. 1, fig. 2, fig. 3, and fig. 5, fig. 5 is a schematic flow chart of a method for manufacturing an organic light emitting display panel according to an embodiment of the present invention, and the embodiment of the present invention further provides a method for manufacturing an organic light emitting display panel, including:
as shown in fig. 6, fig. 6 is a schematic flow chart of forming a first film layer group according to an embodiment of the present invention, and in step 101, a process of forming the first film layer group 100 includes:
The second membrane layer group 200 includes the first electrode layer 31;
102, attaching the second film layer group 200 to the surface of the first film layer group 100 through the first adhesive layer 41 to form a second liquid crystal substrate 400, wherein the second film layer group 200 is located on one side of the packaging layer 13 away from the light-emitting device film layer 12, that is, the second liquid crystal substrate 400 includes the second film layer group 200, the first adhesive layer 41 and the first film layer group 100, and after the step 102, the step 103 is performed;
as shown in fig. 7, fig. 7 is a schematic flow chart of forming a first liquid crystal substrate according to an embodiment of the present invention, and the process of forming the first liquid crystal substrate 300 includes:
It should be noted that the method for manufacturing an organic light emitting display panel in the embodiment of the present invention may be used to manufacture the organic light emitting display panel in the above embodiment, and therefore, the specific structure and principle of the organic light emitting display panel may be the same as those of the above embodiment, and are not described herein again.
In the method for manufacturing the organic light-emitting display panel, the light valve film layer is arranged to be matched with the display film layer, so that the pixels can be emitted and displayed at different positions in a time-sharing manner, namely, the same picture is displayed by the pixels at more positions, and thus, the size of the pixels is not changed physically, but the display resolution is improved. Set up the first counterpoint mark of light valve layer in the drive device rete that shows the rete, set up light valve layer second counterpoint mark in the light valve rete including supporting liner structure, when the rete including supporting liner structure and light valve layer second counterpoint mark is laminated with the demonstration rete, counterpoint through the first counterpoint mark of light valve layer and light valve layer second counterpoint mark, like this, after light valve rete and demonstration rete laminating, guarantee to support the liner structure and be located the non-display region that the demonstration rete was injectd, thereby the harmful effects of support liner structure to the display screen has been reduced.
Alternatively, as shown in fig. 8, fig. 8 is a schematic flow chart of forming a second membrane layer group according to an embodiment of the present invention, and the process of forming the second membrane layer group 200 includes:
alternatively, the process of forming the second liquid crystal substrate 400 includes: attaching the second membrane layer group 200 to the surface of the first membrane layer group 100 through the first adhesive layer 41, wherein the packaging layer 13 of the first membrane layer group 100 is positioned at one side close to the second membrane layer group 200;
before the step 103, the process of aligning and assembling the first liquid crystal substrate 300 and the second liquid crystal substrate 400 by the first alignment mark 21 and the second alignment mark 22 of the light valve layer, the method further includes:
a second alignment layer (not shown in fig. 1) is formed on the surface of the second electrode layer 32 on the side away from the light valve substrate 35, where the support spacer structure 4 is formed, and the second alignment layer is located between the second electrode layer 32 and the liquid crystal layer 33 for initially aligning liquid crystals in the liquid crystal layer 33.
Optionally, the method for manufacturing the organic light emitting display panel further includes:
forming a third film layer set 500, wherein the third film layer set 500 comprises a second transparent polyimide layer 62 and a second liquid crystal coating, and the second liquid crystal coating is a birefringent film layer 5;
the third film layer group 500 is attached to the surface of the light valve substrate 35 away from the second electrode layer 32 through the second adhesive layer 42, which may be performed after the step 103, so as to complete the fabrication of the whole organic light emitting 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 (11)
1. An organic light emitting display panel, comprising:
the display film layer comprises a driving device film layer and a light emitting device film layer which are arranged in a stacked mode, the driving device film layer is located on the non-light-emitting side of the light emitting device film layer, and a light valve layer first alignment mark is arranged on the driving device film layer;
the light valve film layer is positioned on the light emitting side of the light emitting device film layer and comprises a first electrode layer, a liquid crystal layer and a second electrode layer which are sequentially stacked, a supporting liner structure is arranged between the first electrode layer and the second electrode layer and positioned in a non-display area, and a second alignment mark of the light valve layer is arranged in the light valve film layer;
the light valve film layer also comprises a polaroid positioned on one side of the first electrode layer close to the display film layer, and the polaroid is made of a liquid crystal coating material;
and the birefringent film layer is positioned on one side of the light valve film layer, which is far away from the display film layer.
2. The organic light-emitting display panel according to claim 1,
the first electrode layer is located the liquid crystal layer is close to one side of the display film layer, the second electrode layer is located the liquid crystal layer is far away from one side of the display film layer, and the second electrode layer is provided with the light valve layer second alignment mark.
3. The organic light-emitting display panel according to claim 1,
the display film layer further comprises an encapsulation layer positioned on one side of the light-emitting device film layer, which is far away from the driving device film layer;
the organic light emitting display panel further comprises a first adhesive layer positioned between the polarizer and the packaging layer.
4. The organic light-emitting display panel according to claim 2,
the birefringent film layer is a liquid crystal coating material.
5. The organic light emitting display panel according to claim 4,
the light valve film layer further comprises a light valve substrate positioned on one side of the second electrode layer far away from the first electrode layer;
the organic light emitting display panel further comprises a second adhesive layer positioned between the light valve substrate and the birefringent film layer.
6. The organic light-emitting display panel according to claim 1, further comprising:
a first transparent polyimide layer between the first electrode layer and the polarizer.
7. The organic light-emitting display panel according to claim 4, further comprising:
and the second transparent polyimide layer is positioned on the surface of one side, away from the display film layer, of the birefringent film layer.
8. A display device characterized by comprising the organic light-emitting display panel according to any one of claims 1 to 7.
9. A method for manufacturing an organic light emitting display panel includes:
forming a first film layer group, a second film layer group and a first liquid crystal substrate;
the process of forming the first membrane layer set includes:
forming a display substrate;
forming a driving device film layer on the display substrate, wherein a first alignment mark of a light valve layer is arranged on the driving device film layer;
forming a light emitting device film layer on the driving device film layer, wherein the driving device film layer is positioned on the non-light emitting side of the light emitting device film layer;
forming an encapsulation layer on the light emitting device film layer;
the second membrane layer group comprises a first electrode layer;
attaching the second film group to the surface of the first film group through a first adhesive layer to form a second liquid crystal substrate, wherein the second film group is positioned on one side of the packaging layer, which is far away from the light-emitting device film layer;
the process of forming the first liquid crystal substrate includes:
forming a light valve substrate;
forming a second electrode layer on the light valve substrate, and forming a support pad structure and a second alignment mark of the light valve layer on one side of the second electrode layer away from the light valve substrate, wherein the support pad structure is located in a non-display area;
aligning and assembling the first liquid crystal substrate and the second liquid crystal substrate through the first alignment mark of the light valve layer and the second alignment mark of the light valve layer, and forming a liquid crystal layer between the first electrode layer and the second electrode layer, wherein the second electrode layer is positioned on one side of the light valve substrate close to the first electrode layer, and the first electrode layer is positioned on one side of the display substrate close to the second electrode layer;
and forming a birefringent film layer on one side of the light valve substrate far away from the second electrode layer.
10. The method of manufacturing an organic light emitting display panel according to claim 9,
the process of forming the second membrane layer set includes:
coating a first transparent polyimide layer on a glass substrate;
forming the first electrode layer on the first transparent polyimide layer;
forming a first alignment layer on the surface of the first electrode layer;
removing the glass substrate, coating a first liquid crystal coating on one side of the first transparent polyimide layer, which is far away from the first electrode layer, wherein the first liquid crystal coating is a polarizer, and enabling the first transparent polyimide layer, the first electrode layer, the first alignment layer and the polarizer to serve as a second film layer group;
the process of forming the second liquid crystal substrate includes:
attaching the second film layer group to the surface of the first film layer group through a first adhesive layer, wherein the packaging layer of the first film layer group is positioned at one side close to the second film layer group;
before the process of aligning and assembling the first liquid crystal substrate and the second liquid crystal substrate by the first alignment mark of the light valve layer and the second alignment mark of the light valve layer, the method further includes:
and forming a second alignment layer on the surface of the second electrode layer with the support gasket structure, which is far away from the light valve substrate.
11. The method of manufacturing an organic light-emitting display panel according to claim 9, further comprising:
forming a third film layer set comprising a second transparent polyimide layer and a second liquid crystal coating, the second liquid crystal coating being a birefringent film layer;
and attaching the third film group to the surface of one side of the light valve substrate, which is far away from the second electrode layer, through a second adhesive layer.
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|---|---|---|---|---|
| WO2021120216A1 (en) * | 2019-12-20 | 2021-06-24 | 京东方科技集团股份有限公司 | Display panel, fabrication method therefor, and alignment method |
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