WO2014206025A1

WO2014206025A1 - 3d display device and manufacturing method therefor, and display apparatus

Info

Publication number: WO2014206025A1
Application number: PCT/CN2013/089230
Authority: WO
Inventors: 王峥; 马国靖
Original assignee: 京东方科技集团股份有限公司; 北京京东方显示技术有限公司
Priority date: 2013-06-27
Filing date: 2013-12-12
Publication date: 2014-12-31
Also published as: CN103345071A; CN103345071B

Abstract

Disclosed are a 3D display device and a manufacturing method therefor, and a display apparatus. The 3D display device comprises: an electroluminescence display structure (10), and a switch control structure (20) located on a display side of the electroluminescence display structure (10). The switch control structure (20) comprises a package substrate (202), and a liquid crystal box (201) and an electrode layer (203) that are located between the package substrate (202) and the electroluminescence display structure (10). The liquid crystal box (201) is formed on a surface on the display side of the electroluminescence display structure (10). Therefore, thickness of the 3D display device can be reduced, manufacturing processes of the 3D display device can be simplified, production costs can be reduced, and product quality can be improved.

Description

3D display device, manufacturing method thereof, and display device

Embodiments of the present invention relate to the field of display technologies, and in particular, to a 3D display device, a manufacturing method thereof, and a display device. Background technique

With the continuous advancement of display technology, 3D (3 Dimensions, 3D image) display technology is increasingly used in various display fields. In the existing 3D display technology, FPR (Film Patterned Retarder) technology is usually used to realize 3D display effect. The principle of this polarized 3D display is to attach a bidirectional polarized light in front of the panel of a common display device. The film separates the left and right eye images, but the resolution of the pixels is reduced due to the FPR method. In order to improve the pixel resolution of the 3D display product, the Switch Panel (switch control panel switch control structure) can be used instead of the FPR diaphragm. The switch of the Panel controls the signal separation of the left and right eyes to achieve a 3D display effect.

Such a Switch Panel structure can realize a 3D display effect by being disposed on display side surfaces of display devices of various existing structures, and an OLED (Organic Light-Emitting Diode) display is taken as an example. A typical structure of a 3D-OLED display device is as shown in FIG. 1: An OLED panel 11, a switch control panel 21, and a polarizing plate 31 between the OLED panel 11 and the switch control panel 21 are included. The OLED panel 11 and the switch control panel 21 are bonded by a fixing glue 32. The OLED panel 11 includes a first substrate 111 and a second substrate 112. The switch control panel 21 includes a third substrate 211 and a fourth substrate 212 and a switch electrode layer 213. The structure of such a 3D display device has four substrates, the structure is relatively complicated, the thickness is thick, and the manufacturing process is relatively cumbersome, thereby greatly reducing the productivity of the product and increasing the production cost of the product. Summary of the invention

Embodiments of the present invention provide a 3D display device, a method of fabricating the same, and a display device. The thickness of the 3D display device can be reduced, and the manufacturing process of the 3D display device can be reduced, the production cost can be reduced, and the product quality can be improved. In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

In an aspect of an embodiment of the present invention, a 3D display device is provided, comprising: an electroluminescence display structure and a switch control structure on a display side of the electroluminescence display structure.

The electroluminescent display structure includes an organic light emitting device formed on a transparent substrate, the organic light emitting device including an anode layer and a cathode layer, and an organic light emitting layer between the anode layer and the cathode layer, the organic light emitting layer The layer is made of a polarized electroluminescent material; the switch control structure includes a package substrate, and a liquid crystal cell and an electrode layer between the package substrate and the electroluminescent display structure, the electrode layer controls the liquid crystal The box is opened and closed.

In another aspect of an embodiment of the present invention, there is provided a display device comprising the 3D display device as described above.

According to still another aspect of the present invention, a method for fabricating a 3D display device includes: forming an anode layer by a patterning process on a surface of a transparent substrate;

Coating a surface of the anode layer with a polarizing electroluminescent material to form an organic light-emitting layer for emitting polarized light;

Forming a cathode layer on the surface of the organic light-emitting layer by a patterning process to complete fabrication of the electroluminescence display structure;

Forming a switch control structure on a surface of the electroluminescent display structure;

The switch control structure includes a package substrate, and a liquid crystal cell and an electrode layer between the package substrate and the electroluminescent display structure, the electrode layer controlling opening and closing of the liquid crystal cell.

The present invention provides a 3D display device, a manufacturing method thereof, and a display device. The display device includes: a switch control structure on a display side of the electroluminescence display structure, the switch control structure includes a liquid crystal cell, a package substrate, and a liquid crystal cell. And an electrode layer between the package substrate, wherein the liquid crystal cell is formed on a display side surface of the electroluminescent display structure. In this way, the switch control structure can be disposed on the side close to the electroluminescent display structure without providing a transparent substrate, and since the liquid crystal cell is directly formed on the surface of the electroluminescent display structure, the electric power can be charged without fixing by the adhesive. The light-emitting display structure and the switch control structure are firmly fixed, which significantly reduces the number of hierarchical structures in the 3D display device, significantly shortens the structure of the product, thereby reducing production costs and improving product quality. DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is merely some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a schematic structural view of a 3D display device provided by the prior art;

2 is a schematic structural diagram of a 3D display device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another 3D display device according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a display of a 3D display device according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the invention provides a 3D display device, as shown in FIG. 2, comprising: an electroluminescent display structure 10 and a switch control structure 20 on the display side of the electroluminescent display structure 10.

Wherein, the electroluminescent display structure 10 may include an organic light emitting component 102 formed on the transparent substrate 101. The organic light emitting component 102 includes an anode layer 1021 and a cathode layer 1022, and an organic light emitting layer between the anode layer 1021 and the cathode layer 1022. 1023. The organic light-emitting layer 1023 is made of a polarized electroluminescent material.

The switch control structure 20 can include a package substrate 202, and a liquid crystal cell 201 and an electrode layer 203 between the package substrate 202 and the electroluminescent display structure 10. The electrode layer 203 controls the opening and closing of the liquid crystal cell 201.

It should be noted that the display side surface of the electroluminescent display structure 10 refers to the side on which the viewer can see the image in the working state of the electroluminescent display structure 10. By disposing the switch control structure 20 on the display side surface of the electroluminescent display structure 10, when the electrode layer 203 in the switch control structure 20 is supplied with different control signals, the liquid crystal molecules in the liquid crystal cell 201 will have different degrees of deflection. The display screen emitted by the electroluminescence display structure 10 will be polarized out according to the deflection condition of the liquid crystal, so that by controlling the control signal of the switch control structure 20, the screen of the left and right eye fields can be effectively separated, thereby realizing the whole 3D display effect of resolution. A 3D display device provided by an embodiment of the present invention includes: a switch control structure on a display side of an electroluminescence display structure, the switch control structure including a liquid crystal cell, a package substrate, and an electrode between the liquid crystal cell and the package substrate a layer, wherein the liquid crystal cell is formed on a display side surface of the electroluminescent display structure. In this way, the switch control structure can be disposed on the side close to the electroluminescent display structure without providing a transparent substrate, and since the liquid crystal cell is directly formed on the surface of the electroluminescent display structure, the electric power can be charged without fixing by the adhesive. The light-emitting display structure and the switch control structure are firmly fixed, which significantly reduces the number of hierarchical structures in the 3D display device, significantly shortens the structure of the product, thereby reducing production costs and improving product quality.

Further, the electrode layer 203 may be located on a surface of the package substrate 202; the liquid crystal cell 201 may be formed on a display side surface of the electroluminescent display structure 10. In this way, the electrode layer 203 can be formed on the surface of the transparent substrate by a conventional process, thereby facilitating the production and processing of the product.

It should be noted that the position of the liquid crystal cell 201 and the electrode layer 203 may be replaced, and the electrode layer 203 may also be formed on the display side surface of the electroluminescent display structure 10, as long as the liquid crystal cell can be controlled to be turned on and off. limited.

Further, the polarized electroluminescent material may comprise a fluorenyl polymer liquid crystal material subjected to an alignment treatment. Thus, by using the fluorenated polymer-based liquid crystal material which is subjected to the alignment treatment, the organic light-emitting layer can emit white light having a linear polarization direction, so that the step of fabricating the polarizing film layer can be reduced.

Further, as shown in FIG. 2, the organic light emitting device 102 may further include an electron transport layer 1024 between the organic light emitting layer 1023 and the cathode layer 1022. The organic light emitting device may further include other functional film layers such as an electron injecting layer, a hole blocking layer, an electron blocking layer, a hole transport layer, and a hole injecting layer.

Further, as shown in FIG. 3, the electroluminescent display structure 10 may further include an insulating layer 103 and a color resist layer 30 in the direction of the display side of the organic light emitting module 102, as shown in FIG. The layer 103 is located above the organic light emitting component 102, and the color resist layer 30 is located above the insulating layer 103.

It should be noted that the color resist layer 30 may include a color filter structure 301 having three primary colors of red, green, and blue, and a black matrix 302 located around the color filter structure 301. When the electroluminescent display structure emits white light, the color is passed. The resist layer 30 can achieve color display. The color filter structure is not limited to the three primary colors of red, green, and blue, and may include other colors such as magenta, cyan, or yellow. Further, as shown in FIG. 3, the liquid crystal cell 201 may include: a first liquid crystal alignment layer 2011 and a second liquid crystal alignment layer 2012.

The first liquid crystal alignment layer 2011 and the second liquid crystal alignment layer 2012 have spacers 2013 supporting the thickness of the case.

The liquid crystal layer 2014 is provided between the first liquid crystal alignment layer 2011 and the second liquid crystal alignment layer 2012. Such a 3D display device, since the liquid crystal cell 201 is directly formed on the display side surface of the electroluminescence display structure 10, the number of transparent substrates is reduced, thereby reducing the thickness of the 3D display device, and the manufacturing process of the cylindrical 3D display device , reduce production costs and improve product quality.

The working principle of the 3D display device provided by the present invention is as shown in FIG. 4. The electroluminescent display structure 10 emits linearly polarized light. When the switch control structure 20 is in an open state, the electrode controls the liquid crystal deflection to form a +1/4 wave plate structure. The linearly polarized light passes through to form left-handed polarized light.

When the switch control structure 20 is in the off state, the electrodes control the liquid crystal deflection to form a -1/4 wave plate structure, and the linearly polarized light passes to form right-handed polarized light.

In this way, the image of both eyes can be received by the left-handed, right-handed polarized glasses, thereby achieving the effect of full-resolution 3D polarization.

Embodiments of the present invention provide a display device including any of the 3D display devices described above. The same advantageous effects as the 3D display device provided by the foregoing embodiments of the present invention are provided. Since the 3D display device has been described in detail in the foregoing embodiments, it will not be described herein.

A display device provided by an embodiment of the present invention includes a 3D display device, the display device comprising: a switch control structure on a display side of the electroluminescent display structure, the switch control structure including a liquid crystal cell, a package substrate, and a An electrode layer between the liquid crystal cell and the package substrate, wherein the liquid crystal cell is formed on a display side surface of the electroluminescent display structure. In this way, the switch control structure can be disposed on the side close to the electroluminescent display structure without providing a transparent substrate, and since the liquid crystal cell is directly formed on the surface of the electroluminescent display structure, the electric power can be charged without fixing by the adhesive. The light-emitting display structure and the switch control structure are firmly fixed, which significantly reduces the number of hierarchical structures in the 3D display device, significantly shortens the structure of the product, thereby reducing production costs and improving product quality.

The embodiment of the invention provides a method for manufacturing a 3D display device. As shown in FIG. 2, the method can include:

S101. The anode layer 1021 can be formed by a patterning process on the surface of the transparent substrate 101. S102, coating a surface of the anode layer 1021 with a polarizing electroluminescent material, which can be formed for use in The polarized organic light-emitting layer 1023 is emitted.

5103. The cathode layer 1022 can be formed on the surface of the organic light-emitting layer 1023 by a patterning process to complete the fabrication of the electroluminescent display structure 10.

5104. A switch control structure 20 is formed on the surface of the electroluminescent display structure 10 described above.

The switch control structure 20 includes a package substrate 202, and a liquid crystal cell 201 and an electrode layer 203 between the package substrate 202 and the electroluminescent display structure 10. The electrode layer 203 controls the opening and closing of the liquid crystal cell 202.

It should be noted that the display side surface of the electroluminescence display structure 10 refers to the side on which the viewer can see the image in the working state of the electroluminescence display structure 10. By disposing the switch control structure 20 on the display side surface of the electroluminescent display structure 10, when the electrode layer 203 in the switch control structure 20 is supplied with different control signals, the liquid crystal molecules in the liquid crystal cell 201 will have different degrees of deflection. The display screen emitted by the electroluminescence display structure 10 will be polarized out according to the deflection condition of the liquid crystal, so that by controlling the control signal of the switch control structure 20, the screen of the left and right eye fields can be effectively separated, thereby realizing the whole 3D display effect of resolution.

A display device for manufacturing a 3D display device according to an embodiment of the present invention includes: a switch control structure on a display side of an electroluminescence display structure, the switch control structure including a liquid crystal cell, a package substrate, and a liquid crystal cell and a package substrate An electrode layer, wherein the liquid crystal cell is formed on a display side surface of the electroluminescent display structure. In this way, the switch control structure can be disposed on the side close to the electroluminescent display structure without providing a transparent substrate, and since the liquid crystal cell is directly formed on the surface of the electroluminescent display structure, the electric power can be charged without fixing by the adhesive. The light-emitting display structure and the switch control structure are firmly fixed, which significantly reduces the number of hierarchical structures in the 3D display device, significantly shortens the structure of the product, thereby reducing production costs and improving product quality.

Further, forming the liquid crystal cell 201 and the electrode layer 203 formed on the package substrate 202 may include:

S201, an electrode layer 203 is formed on the surface of the package substrate 202.

S202, forming a liquid crystal cell 201 on the display side surface of the electroluminescence display structure 10.

Thus, the electrode layer 203 can be formed on the surface of the transparent substrate 101 by a conventional process, thereby facilitating the production and processing of the product.

Further, the surface of the anode layer 1021 is coated with a polarizing electroluminescent material, and the organic light emitting layer 1023 for emitting polarized light may include: Coating a surface of the anode layer 1021 with a ruthenium-based polymer liquid crystal material;

The fluorenyl polymer liquid crystal material is subjected to an alignment treatment to form an organic light-emitting layer for emitting white polarized light. Thus, by using the fluorenated polymer-based liquid crystal material which is subjected to the alignment treatment, the organic light-emitting layer can emit white light having a linear polarization direction, so that the step of fabricating the polarizing film layer can be reduced.

Further, the manufacturing method may further include:

S301, a transport layer 1024 is formed between the organic light-emitting layer 1023 and the cathode layer 1022.

Further, as shown in FIG. 3, the method of manufacturing the electroluminescent display structure 10 may further include: S401, forming an insulating layer 103 on the surface of the cathode layer 1022.

S402, a color resist layer 30 is formed on the surface of the substrate on which the insulating layer 103 is formed.

It should be noted that the color resist layer 30 may include a color filter structure 301 having three primary colors of red, green, and blue, and a black matrix 302 located at two ends of the color filter structure 301. When the electroluminescent display structure emits white light, the color is passed. The resist layer 30 can achieve color display.

Further, the step of forming the liquid crystal cell 201 may include:

S501, an alignment material is coated on the display side surface of the electroluminescence display structure 10, and a first liquid crystal alignment layer 2011 is formed by an alignment treatment.

5502, an alignment material is coated on the surface of the package substrate 202 on which the electrode layer 203 is formed, and a second liquid crystal alignment layer 2012 is formed by an alignment treatment.

5503. The substrate on which the first liquid crystal alignment layer 2011 is formed and the substrate on which the second liquid crystal alignment layer 2012 is formed are formed into a box, and a spacer 2013 is provided between the first liquid crystal alignment layer 2011 and the second liquid crystal alignment layer 2012.

S504, liquid crystal is instilled between the first liquid crystal alignment layer 2011 and the second liquid crystal alignment layer 2012, and a liquid crystal layer 2014 is formed.

Such a 3D display device, since the liquid crystal cell is directly fabricated on the display side surface of the electroluminescence display structure, the number of transparent substrates is reduced, thereby reducing the thickness of the 3D display device, and the manufacturing process of the cylindrical 3D display device is lowered. Production costs, improve product quality.

Specifically, the manufacturing method of the 3D display device provided by the present invention will be described in detail as an example of the structure shown in FIG.

S601. A light-emitting electroless anode layer 1021 is formed on the surface of the transparent substrate 101 by a mask or an etching process. 5602. The organic light-emitting layer 1023 is formed by coating a surface of the anode layer 1021 with a ruthenium-based polymer liquid crystal material, and is oriented by a rubbing method so that the organic light-emitting layer 1023 can emit white light having a linear polarization direction.

5603. A transport layer 1024, a cathode layer 1022, and an insulating layer 103 are sequentially formed on the substrate on which the above structure is formed.

5604. On the substrate on which the above structure is formed, the color filter structure 301 and the black matrix 302 in the color resist layer 30 are respectively formed by a mask and an etching process.

5605, coating a first liquid crystal alignment layer 2011 on the substrate on which the above structure is formed, and aligning the first liquid crystal alignment layer 2011 by a rubbing or light process, specifically, a color filter structure may be formed thereon. A flat layer is formed on the substrate of the 301 and the black matrix 302 to facilitate coating of the liquid crystal alignment layer.

5606. The electrode layer 203 and the second liquid crystal alignment layer 2012 are sequentially formed on the surface of the package substrate 202, and the second liquid crystal alignment layer 2012 is aligned by a rubbing or photo-alignment process.

S607, placing a spacer 2013 on the substrate on which the above structure is formed, and bonding the substrate provided with the first alignment layer 2011 and the substrate provided with the second liquid crystal alignment layer 2012, and the spacer 2013 makes the above two There is a certain thickness between the substrates.

S608, injecting liquid crystal between the substrate provided with the first alignment layer 2011 and the substrate provided with the second liquid crystal alignment layer 2012 to form a liquid crystal layer 2014, and bonding the two substrates by a sealant.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

claims

1. A 3D display device, including: an electroluminescent display structure and a switch control structure located on the display side of the electroluminescent display structure,

The electroluminescent display structure includes an organic light-emitting component formed on a transparent substrate, the organic light-emitting component includes an anode layer and a cathode layer, and an organic light-emitting layer located between the anode layer and the cathode layer, the organic light-emitting component The layer is made of polarized electroluminescent material;

The switch control structure includes a packaging substrate, a liquid crystal cell and an electrode layer located between the packaging substrate and the electroluminescent display structure. The electrode layer controls the opening and closing of the liquid crystal cell.

2. The 3D display device according to claim 1, wherein the electrode layer is located on the surface of the packaging substrate, and the liquid crystal cell is formed on the display side surface of the electroluminescent display structure.

3. The 3D display device according to claim 1 or 2, wherein,

The polarized electroluminescent material includes an alignment-treated fluorene-based polymer liquid crystal material.

4. The 3D display device according to any one of claims 1 to 3, wherein the organic light-emitting component further includes a transmission layer, the transmission layer is located between the organic light-emitting layer and the cathode layer.

5. The 3D display device according to any one of claims 1 to 4, wherein,

The electroluminescent display structure further includes an insulating layer and a color resist layer located on the display side of the organic light-emitting component.

6. The 3D display device according to any one of claims 1 to 5, wherein the liquid crystal cell includes:

a first liquid crystal alignment layer and a second liquid crystal alignment layer;

There is a support cell-thick spacer between the first liquid crystal alignment layer and the second liquid crystal alignment layer;

There is a liquid crystal layer between the first liquid crystal alignment layer and the second liquid crystal alignment layer.

7. A display device, comprising the 3D display device according to any one of claims 1 to 6.

8. A method for manufacturing a 3D display device, including:

An anode layer is formed on the surface of the transparent substrate through a patterning process;

Coating a polarized electroluminescent material on the surface of the anode layer to form an organic luminescent layer for emitting polarized light; Form a cathode layer on the surface of the organic light-emitting layer through a patterning process to complete the production of the electroluminescent display structure;

Form a switch control structure on the surface of the above-mentioned electroluminescent display structure;

9. The 3D display device manufacturing method according to claim 8, wherein the formation of the liquid crystal cell and electrode layer includes:

forming the electrode layer on the surface of the packaging substrate;

The liquid crystal cell is formed on a display side surface of the electroluminescent display structure.

10. The 3D display device manufacturing method according to claim 8 or 9, wherein coating a polarized electroluminescent material on the surface of the anode layer to form an organic light-emitting layer for emitting polarized light includes:

Coating a fluorene-based polymer liquid crystal material on the surface of the anode layer;

The fluorene-based polymer liquid crystal material is subjected to alignment treatment to form an organic light-emitting layer for emitting white polarized light.

11. The 3D display device manufacturing method according to any one of claims 8 to 10, further comprising:

A transport layer is formed between the organic light emitting layer and the cathode layer.

12. The 3D display device manufacturing method according to any one of claims 8 to 11, wherein the method of manufacturing the electroluminescent display structure further includes:

forming an insulating layer on the surface of the cathode layer;

A color resist layer is formed on the surface of the substrate on which the insulating layer is formed.

13. The 3D display device manufacturing method according to any one of claims 8 to 12, wherein the step of forming the liquid crystal cell includes:

Coating an alignment material on the display side surface of the electroluminescent display structure, and forming a first liquid crystal alignment layer through alignment treatment;

Coating an alignment material on the surface of the packaging substrate on which the electrode layer is formed, and forming a second liquid crystal alignment layer through alignment treatment;

The substrate on which the first liquid crystal alignment layer is formed and the substrate on which the second liquid crystal alignment layer is formed are placed. Board-to-box molding, with a spacer between the first liquid crystal alignment layer and the second liquid crystal alignment layer; liquid crystal is dripped between the first liquid crystal alignment layer and the second liquid crystal alignment layer to form liquid crystal layer.