CN112002732A - Organic light emitting diode display device and method of manufacturing the same - Google Patents
Organic light emitting diode display device and method of manufacturing the same Download PDFInfo
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- CN112002732A CN112002732A CN202010777825.XA CN202010777825A CN112002732A CN 112002732 A CN112002732 A CN 112002732A CN 202010777825 A CN202010777825 A CN 202010777825A CN 112002732 A CN112002732 A CN 112002732A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The present invention provides an organic light emitting diode display device and a method for manufacturing the same, the organic light emitting diode display device including: an active matrix organic light emitting diode module; a substrate disposed on the active matrix organic light emitting diode module, and an electrochromic module disposed on the other side of the substrate, wherein the electrochromic module includes: a first electrode layer; the electrochromic material layer is arranged on the first electrode layer; the electrolyte layer is arranged on the electrochromic material layer; the second electrode layer is arranged on the electrolyte layer; wherein the first electrode layer and the second electrode layer are both transparent structures.
Description
Technical Field
The present invention relates to the field of display, and more particularly, to an organic light emitting diode display device and a method for manufacturing the same.
Background
In order to seek self-luminescence to increase contrast and develop towards flexible displays, Liquid Crystal Displays (LCDs) are developed towards Organic electroluminescent displays (OELDs), and OLEDs have the advantages of being capable of self-luminescence to achieve Display, requiring no liquid crystal and being capable of manufacturing flexible and flexible displays, which is a significant hot point in the development at present.
Various types of flat panel display devices have been developed to replace the bulky cathode ray tubes. Flat panel display devices include liquid crystal displays, plasma display panels, electrophoretic displays, and organic light emitting displays. Currently, a high-pixel flat display panel is a trend in the market, an Active Matrix/Organic Light Emitting Diode (AMOLED) panel attracts people's eyes, the AMOLED panel is dominant in a panel market with a middle and small size and a pixel of 200ppi, and the AMOLED WVGA (Wide Video Graphics Array, WVGA) has a resolution higher than that of VGA: 800 x 480; 200ppi is the current dominant resolution, and high pixels of 250ppi, 300ppi and 350ppi will be the future development trend.
And the OLED display has very wide application prospect, and has the characteristics of lightness, thinness and even capability of being prepared into flexible products. Even the concept of designing OLEDs as "wallpaper displays" has been proposed. Although OLED displays have a wide color gamut and high contrast, and can display bright-colored images when turned on, they are only visible to consumers and viewers when turned off, and they are dull with a surface that appears to be black, colorless, or uniformly colored.
Therefore, the invention provides an optimized scheme aiming at the current situation of the product. The other side of the substrate of the OLED display is additionally provided with the electrochromic device, so that a static image is displayed when the display is closed; and in the opening state of the display, the display of the picture is not influenced as much as possible.
It is therefore a primary objective of the claimed invention to provide an organic light emitting diode display device and a method for manufacturing the same, which further optimize the above mentioned problems.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide an organic light emitting diode display device
The device comprises: an active matrix organic light emitting diode module; a substrate disposed on the active matrix organic light emitting diode module, and an electrochromic module disposed on the other side of the substrate, wherein the electrochromic module includes: a first electrode layer; the electrochromic material layer is arranged on the first electrode layer; the electrolyte layer is arranged on the electrochromic material layer; the second electrode layer is arranged on the electrolyte layer; wherein the first electrode layer and the second electrode layer are both transparent structures.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme.
In an embodiment of the present invention, the active matrix organic light emitting diode module further includes: a cover plate; a reflective cathode layer disposed on the cover plate; a light emitting layer disposed on the reflective cathode layer; a transparent anode layer disposed on the light-emitting layer; and an active switch row substrate disposed on the transparent anode layer.
In an embodiment of the present invention, the light-emitting layer forms three primary colors of a red organic light-emitting diode, a green organic light-emitting diode, and a blue organic light-emitting diode according to different formulations thereof, so as to form a basic color.
In one embodiment of the present invention, the first electrode layer is a transparent anode, wherein the material of the first electrode layer is selected from the group consisting of aluminum-doped zinc oxide, metallic indium tin oxide, and metallic tin oxyfluoride.
In an embodiment of the present invention, the material of the electrochromic material layer is selected from the group consisting of tungsten oxide, molybdenum oxide, vanadium pentoxide, prussian blue, prussian black, prussian green, prussian white, 1-disubstituted-4, 4-bipyridine, and metal phthalocyanine blue.
In one embodiment of the present invention, the material of the electrolyte layer is selected from the group consisting of lithium perchlorate and acrylic acid carbonate (LIPC), lithium hexafluorophosphate and poly carbonate (LB), and solid lithium salt (LiNbO)3，LiTaO-3) And an all-solid polymer electrolyte.
In one embodiment of the present invention, the second electrode layer is a transparent cathode, wherein the material of the second electrode layer is selected from the group consisting of aluminum-doped zinc oxide, metallic indium tin oxide, and metallic tin oxyfluoride.
The purpose of the patent of the invention and the technical problem solved can be further realized by adopting the following technical measures.
Another object of the present invention is to provide a method of manufacturing an organic light emitting diode display device, including: providing an active matrix organic light emitting diode module; providing a substrate formed on the active matrix organic light emitting diode module, and forming an electrochromic module on the other side of the substrate, wherein the electrochromic module comprises: a first electrode layer; forming an electrochromic material layer on the first electrode layer; forming an electrolyte layer on the electrochromic material layer; and forming a second electrode layer on the electrolyte layer, wherein the first electrode layer and the second electrode layer are both transparent structures.
In an embodiment of the present invention, the method further includes: a cover plate; forming a reflective cathode layer on the cover plate; forming a light emitting layer on the reflective cathode layer; forming a transparent anode layer on the light-emitting layer; and forming an active switch row substrate on the transparent anode layer.
In an embodiment of the present invention, the light emitting layer forms three primary colors of a red organic light emitting diode, a green organic light emitting diode and a blue organic light emitting diode according to different formulations thereof to form a basic color.
The invention discloses a static image display method, which comprises the following steps of additionally arranging an electrochromic device on the other side of a substrate of an OLED display, and displaying the static image when the display is in a closed state; and in the opening state of the display, the display of the picture is not influenced as much as possible.
Drawings
Fig. 1 is a schematic diagram of an organic light emitting diode display device having an electrochromic module according to an embodiment of the invention.
Fig. 2 is a flowchart illustrating a method of fabricating an oled display device according to an embodiment of the invention.
Fig. 3a is a schematic diagram of an on state of an oled display device having an electrochromic module according to an embodiment of the invention.
Fig. 3b is a schematic diagram of an off state of an oled display device having an electrochromic module according to an embodiment of the invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
The drawings and description are to be regarded as illustrative in nature, and not as restrictive. In the drawings, elements having similar structures are denoted by the same reference numerals. In addition, the size and thickness of each component shown in the drawings are arbitrarily illustrated for understanding and ease of description, but the present patent is not limited thereto.
In the drawings, the thickness of layers, films, panels, regions, etc. are exaggerated for clarity. In the drawings, the thickness of some layers and regions are exaggerated for understanding and convenience of description. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.
In addition, in the description, unless explicitly described to the contrary, the word "comprise" will be understood to mean that the recited components are included, but not to exclude any other components. Further, in the specification, "on.
To further illustrate the technical means and effects of the present invention for achieving the predetermined objects, the following detailed description of the organic light emitting diode display device and the method for manufacturing the same according to the present invention will be provided with reference to the accompanying drawings and specific embodiments, and the detailed description thereof will be provided with reference to the following detailed description.
Fig. 1 is a schematic diagram of an oled display device having an electrochromic module 200 according to an embodiment of the invention. Referring to fig. 1, in an embodiment of the present invention, an organic light emitting diode display device 10 includes: an active matrix organic light emitting diode module 100, comprising: a cover plate 110; a reflective cathode layer 120 disposed on the cover plate 110; a light emitting layer 130 disposed on the reflective cathode layer 120; a transparent anode layer 140 disposed on the light-emitting layer 130; and an active switch row substrate 150 disposed on the transparent anode layer 140; a substrate 300 disposed on the active matrix organic light emitting diode module 100, and an electrochromic module 200 disposed on the other side of the substrate 300, wherein the electrochromic module 200 includes: a first electrode layer 210; an electrochromic material layer 220 disposed on the first electrode layer 210; an electrolyte layer 230 disposed on the electrochromic material layer 220; and a second electrode layer 240 disposed on the electrolyte layer 230; wherein the first electrode layer 210 and the second electrode layer 240 are both transparent structures.
In an embodiment of the present invention, the light-emitting layer 130 generates three primary colors of a red organic light-emitting diode 132, a green organic light-emitting diode 134, and a blue organic light-emitting diode 136 according to different formulations thereof, so as to form a basic color.
In one embodiment of the present invention, the first electrode layer 210 is a transparent anode, wherein the material of the first electrode layer 210 is selected from the group consisting of aluminum-doped zinc oxide (ZnO), Indium Tin Oxide (ITO), and fluorine oxide of tin (FTO).
In one embodiment of the present invention, the material of the electrochromic material layer 220 is selected from tungsten oxide (WO)3) Molybdenum oxide (MoO)3) Vanadium pentoxide (V)2O5) Tungsten oxide, Prussian blue, Prussian black, Prussian green, Prussian white, and 1, 1-double extractSubstituted-4, 4-bipyridine and metal phthalocyanine [ Lu (PC)2]The group consisting of.
In one embodiment of the present invention, the material of the electrolyte layer 230 is selected from the group consisting of lithium perchlorate and acrylic acid carbonate (LIPC), lithium hexafluorophosphate and poly carbonate (LB), and solid lithium salt (LiNbO)3，LiTaO-3) And an all-solid polymer electrolyte.
In an embodiment of the present invention, an ion storage layer (not shown) may be disposed on the electrolyte layer 230, and the material of the ion storage layer may be a titanium dioxide (TiO2) array or film, a zinc oxide (ZnO) array or film, which mainly balances the gain and loss of electrons, and sometimes the layer may also be made of an electrochromic material to form a dual-color device, and the overall color of the device may be adjusted and controlled by matching different materials.
In one embodiment of the present invention, the second electrode layer 240 is a transparent cathode, wherein the material of the second electrode layer 240 is selected from the group consisting of aluminum-doped zinc oxide (ZnO), Indium Tin Oxide (ITO), and fluorine oxide of tin (FTO).
Fig. 2 is a flowchart illustrating a method of fabricating an oled display device according to an embodiment of the invention. Please refer to fig. 1
And fig. 2, in an embodiment of the present invention, a method for manufacturing an organic light emitting diode display device 10 includes: providing an active matrix organic light emitting diode module 100, the active matrix organic light emitting diode module 100 comprising: a cover plate 110; a reflective cathode layer 120 formed on the cover plate 110; a light emitting layer 130 formed on the reflective cathode layer 120; a transparent anode layer 140 formed on the light-emitting layer 130; and an active switch row substrate 150 formed on the transparent anode layer 140; providing a substrate 300 formed on the active matrix organic light emitting diode module 100, and forming an electrochromic module 200 on the other side of the substrate 300, wherein the electrochromic module 200 includes: a first electrode layer 210, serving as an anode, for providing uniform current to the electrochromic module 200, so that the electrochromic effect of the electrochromic module 200 is uniform; an electrochromic material layer 220 formed on the first electrode layer 210, wherein the electrochromic module 200, when being applied with a voltage, will make the electrochromic material layer 220 change color; an electrolyte layer 230 (e.g., liquid electrolyte, gel electrolyte, solid electrolyte, ionic liquid, etc.) formed on the electrochromic material layer 220; and a second electrode layer 240 formed on the electrolyte layer 230, for serving as a cathode and providing a uniform current to the electrochromic module 200, so that the electrochromic effect of the electrochromic module 200 is uniform; wherein the first electrode layer 210 and the second electrode layer 240 are both transparent structures; when one block of the electrochromic module 200 contacts with the anode and the other block contacts with the cathode, and then the electrochromic module is matched with the electrolyte layer 230 covering the electrochromic material layer 220, an electrical path can be formed, if the material of the electrochromic module 200 is a material which can change color when contacting with the cathode, the block contacting with the cathode can generate an electrochromic effect, and the block contacting with the anode does not change. It can be understood that if the electrical property of the two blocks is changed, the color-changing area will also be changed.
In one embodiment of the present invention, the parameters of the electrochromic material layer 220 include: contrast ratio: at present, optical contrast of a film is generally researched through the variable quantity (delta T,%) of the transmittance of the film, and specifically, the degree of difference of the transmittance between two states is obtained by recording the transmittance under corresponding wavelengths under two constant voltage states with a fixed period; response time: electrochemical response time and optical response time. The optical (electrochemical) response time can be expressed by the time required for the polymer film to change in transmittance (or change in current) by 95% during the process; color coordinates: reflecting the color state of the electrochromic material. The color coordinates of the electrochromic materials can now be determined using the CIE 1976L a b color space standard established by the international commission on illumination, where L denotes the brightness and ranges from pure black to pure white from 0 to 100, a denotes the color from red to green and ranges from 127 to-128, and b denotes the color from yellow to blue and also ranges from 127 to-128; coloring efficiency: the Coloring Efficiency (CE) represents the efficiency of material discoloration during the electrical signal driving process, which is measured by the ratio of the change of the optical parameter to the amount of charge lost during the process, i.e., a higher CE value indicates that the corresponding optical change can be driven by a smaller amount of charge; and (3) cyclic stability: optical memory (also open circuit) refers to the ability of the photochromic film to retain its current color after removal of the applied voltage (also open circuit).
In one embodiment of the present invention, the light-emitting layer 130 forms three primary colors, i.e., a red organic light-emitting diode 132, a green organic light-emitting diode 134, and a blue organic light-emitting diode 136, according to different formulations thereof, to form a basic color.
Referring to fig. 2, in a process S210, an active matrix organic light emitting diode module 100 is provided, where the active matrix organic light emitting diode module 100 includes: a cover plate 110; a reflective cathode layer 120 formed on the cover plate 110; a light emitting layer 130 formed on the reflective cathode layer 120; a transparent anode layer 140 formed on the light-emitting layer 130; and an active switch row substrate 150 formed on the transparent anode layer 140.
Referring to fig. 2, in a process S220, a substrate 300 is provided to be formed on the active matrix organic light emitting diode module 100, and an electrochromic module 200 is formed on the other side of the substrate 300.
Referring to fig. 2, in a process S230, the electrochromic module 200 includes: a first electrode layer 210; an electrochromic material layer 220 formed on the first electrode layer 210; an electrolyte layer 230 formed on the electrochromic material layer 220; and a second electrode layer 240 formed on the electrolyte layer 230.
Fig. 3a is a schematic diagram illustrating an on state of an oled display device having an electrochromic module according to an embodiment of the present invention, and fig. 3b is a schematic diagram illustrating an off state of the oled display device having the electrochromic module according to an embodiment of the present invention. Referring to fig. 1, fig. 3a and fig. 3b, in an embodiment of the present invention, when the active matrix organic light emitting diode module (AMOLED module) 100 is ready to be turned On (On-State)310, the display panel displays the content of the frame thereof, and applies a negative voltage to the electrochromic module 200 to change the color thereof to colorless, until the voltage application is stopped after the color conversion process is completed. The image displayed by the active matrix organic light emitting diode can smoothly pass through the substrate 300 and the electrochromic module 200 without obstruction. When the active matrix organic light emitting diode module (AMOLED module) 100 is in the Off-State 320, the display panel thereof does not display the picture content, and a forward voltage is applied to the electrochromic module 200 to change the color thereof from transparent to dark, until the application of the voltage is stopped after the color conversion process is completed. In the panel area, complete static patterns can be assembled by the deliberate matching of different electrochromic materials.
The invention discloses a static image display method, which comprises the following steps of additionally arranging an electrochromic device on the other side of a substrate of an OLED display, and displaying the static image when the display is in a closed state; and the display of the picture is not influenced when the display is in the opening state.
The terms "in some embodiments" and "in various embodiments" are used repeatedly. The terms generally do not refer to the same embodiment; it may also refer to the same embodiment. The terms "comprising," "having," and "including" are synonymous, unless the context dictates otherwise.
Although the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An organic light emitting diode display device, comprising:
an active matrix organic light emitting diode module;
a substrate disposed on the active matrix organic light emitting diode module, and an electrochromic module disposed on the other side of the substrate, wherein the electrochromic module includes:
a first electrode layer;
the electrochromic material layer is arranged on the first electrode layer;
the electrolyte layer is arranged on the electrochromic material layer; and
the second electrode layer is arranged on the electrolyte layer; wherein the first electrode layer and the second electrode layer are both transparent structures.
2. The oled display device claimed in claim 1, wherein the active matrix oled module further comprises: a cover plate; a reflective cathode layer disposed on the cover plate; a light emitting layer disposed on the reflective cathode layer; a transparent anode layer disposed on the light-emitting layer; and an active switch row substrate disposed on the transparent anode layer.
3. The oled display device claimed in claim 2, wherein the light-emitting layer generates three primary colors of red, green and blue oleds according to different formulations thereof to constitute basic colors.
4. The oled display device claimed in claim 1, wherein the first electrode layer is a transparent anode, and wherein the material of the first electrode layer is selected from the group consisting of aluminum-doped zinc oxide, metallic indium tin oxide, and metallic tin oxyfluoride.
5. The oled display device claimed in claim 1, wherein the electrochromic material layer is made of a material selected from the group consisting of tungsten oxide, molybdenum oxide, vanadium pentoxide, and other metal oxides, prussian blue, prussian black, prussian green, prussian white, 1-disubstituted-4, 4-bipyridine, and metal phthalocyanine blue.
6. The organic light emitting diode display device of claim 1, wherein the electrolyte layer is made of a material selected from the group consisting of lithium perchlorate and acrylic carbonate (LIPC), lithium hexafluorophosphate and poly carbonate (LB), and solid lithium salt (LiNbO)3，LiTaO-3) And an all-solid polymer electrolyte.
7. The oled display device claimed in claim 1, wherein the second electrode layer is a transparent cathode, and wherein the material of the second electrode layer is selected from the group consisting of aluminum-doped zinc oxide, metallic indium tin oxide, and metallic tin oxyfluoride.
8. A method of manufacturing an organic light emitting diode display device, comprising:
providing an active matrix organic light emitting diode module;
providing a substrate formed on the active matrix organic light emitting diode module, and forming an electrochromic module on the other side of the substrate, wherein the electrochromic module comprises:
a first electrode layer;
forming an electrochromic material layer on the first electrode layer;
forming an electrolyte layer on the electrochromic material layer; and
and forming a second electrode layer on the electrolyte layer, wherein the first electrode layer and the second electrode layer are both transparent structures.
9. The method of claim 8, wherein the AMOLED module further comprises: a cover plate; forming a reflective cathode layer on the cover plate; forming a light emitting layer on the reflective cathode layer; forming a transparent anode layer on the light-emitting layer; and forming an active switch row substrate on the transparent anode layer.
10. The method of claim 9, wherein the light-emitting layer forms three primary colors of red, green and blue organic light-emitting diodes according to different formulations to form a basic color.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010777825.XA CN112002732B (en) | 2020-08-05 | 2020-08-05 | Organic light emitting diode display device and method of manufacturing the same |
| PCT/CN2020/128261 WO2022027853A1 (en) | 2020-08-05 | 2020-11-12 | Organic light emitting diode display apparatus and manufacturing method therefor |
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| CN202010777825.XA CN112002732B (en) | 2020-08-05 | 2020-08-05 | Organic light emitting diode display device and method of manufacturing the same |
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| CN112002732A true CN112002732A (en) | 2020-11-27 |
| CN112002732B CN112002732B (en) | 2023-04-18 |
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| CN1988169A (en) * | 2005-12-21 | 2007-06-27 | 三星Sdi株式会社 | Plate display device and driving method therefor |
| CN106094385A (en) * | 2016-07-11 | 2016-11-09 | 复旦大学 | A kind of monolayer electroluminescent color variable device and preparation method thereof |
| CN109742104A (en) * | 2019-01-03 | 2019-05-10 | 京东方科技集团股份有限公司 | Smart window |
| CN110161770A (en) * | 2019-05-23 | 2019-08-23 | 京东方科技集团股份有限公司 | Display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9547202B2 (en) * | 2014-12-19 | 2017-01-17 | Industrial Technology Research Institute | Transparent display panel |
| CN107577080B (en) * | 2017-09-20 | 2020-06-02 | 京东方科技集团股份有限公司 | Transparent display panel and transparent display device |
| CN107845738A (en) * | 2017-11-01 | 2018-03-27 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED display and preparation method thereof |
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- 2020-08-05 CN CN202010777825.XA patent/CN112002732B/en active Active
- 2020-11-12 WO PCT/CN2020/128261 patent/WO2022027853A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988169A (en) * | 2005-12-21 | 2007-06-27 | 三星Sdi株式会社 | Plate display device and driving method therefor |
| CN106094385A (en) * | 2016-07-11 | 2016-11-09 | 复旦大学 | A kind of monolayer electroluminescent color variable device and preparation method thereof |
| CN109742104A (en) * | 2019-01-03 | 2019-05-10 | 京东方科技集团股份有限公司 | Smart window |
| CN110161770A (en) * | 2019-05-23 | 2019-08-23 | 京东方科技集团股份有限公司 | Display panel |
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| WO2022027853A1 (en) | 2022-02-10 |
| CN112002732B (en) | 2023-04-18 |
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