CN110911587A - Display screen and manufacturing method thereof - Google Patents
Display screen and manufacturing method thereof Download PDFInfo
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- CN110911587A CN110911587A CN201911257721.XA CN201911257721A CN110911587A CN 110911587 A CN110911587 A CN 110911587A CN 201911257721 A CN201911257721 A CN 201911257721A CN 110911587 A CN110911587 A CN 110911587A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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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
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Abstract
The application relates to a display screen and a manufacturing method. The display screen comprises a cover plate, a substrate, an organic light-emitting diode device, a black film layer, a reflecting layer and an insulating layer; the substrate and the cover plate are oppositely arranged; the organic light-emitting diode device is arranged on one surface of the substrate, which is adjacent to the cover plate; the black film layer is formed on one surface of the cover plate, which is adjacent to the substrate; the reflecting layer is formed on one surface of the black film layer, which is far away from the cover plate; the insulating layer is located the one side that the black rete deviates from the apron, and the insulating layer is located between apron and the base plate, and the insulating layer has the light transmissivity. After multiple reflection and refraction, the interaction among the light beams is changed, the light emitting of the display screen is improved, and the effect of improving the brightness of the display screen is achieved.
Description
Technical Field
The present disclosure relates to display devices, and particularly to a display screen and a manufacturing method thereof.
Background
The Organic Light-Emitting Diode (OLED) has the advantages of self-luminescence, fast response speed, low power consumption, ultra-lightness, thinness, winding capability and the like, and is rapidly developed in the field of display equipment, so that the OLED display screen is widely applied to various high-end mobile phone brands, flagship machines and hand-carried products. For catering to the market trend of high screen occupation ratio and solving the problem of abnormal display effect of the display screen, a black film layer and a high-transmission insulating layer are coated on the surface of one side of the cover plate, which faces the OLED device, of the non-window part, so that the color between the display area and the frame area is closer, the black chromaticity of the display area and the frame area under the screen state is deepened, the effect of screen-saving integration black between the display area and the frame area is improved, and meanwhile, the printing ink layer is prevented from polluting the OLED device.
However, in the black-all-in-one display screen, in the display state, the OLED device of the display screen emits light all around, and most of the light incident on the black film layer is absorbed, so that the brightness of the light emitted from the window area of the display screen is weakened. If the brightness is increased by increasing the current, the power consumption of the display screen is increased, and the service life of the display screen is reduced by frequent charging and discharging for a long time.
Disclosure of Invention
In view of this, it is necessary to provide a display panel and a manufacturing method thereof, which solve the problem of the luminance of light emitted from the window area of the display panel becoming weak.
A display screen, comprising:
a cover plate;
the base plate is arranged opposite to the cover plate;
the organic light-emitting diode device is arranged on one surface, close to the cover plate, of the substrate;
the black film layer is formed on one surface, adjacent to the substrate, of the cover plate;
the reflecting layer is formed on one surface of the black film layer, which is far away from the cover plate;
the insulating layer is arranged on the surface, deviating from the cover plate, of the black film layer, the insulating layer is located between the cover plate and the base plate, and the insulating layer has light transmission.
In the display screen, the organic light-emitting diode device is arranged on the surface of the substrate, which is adjacent to the cover plate, so that the organic light-emitting diode device generates incident light towards the cover plate, the black film layer is formed on the surface of the cover plate, which is adjacent to the substrate, the reflecting layer is formed on the surface of the black film layer, which is far away from the cover plate, the insulating layer is arranged on the surface of the reflecting layer, which is far away from the black film layer, the insulating layer has light transmittance, so that the problem that the reflecting layer is easy to scratch is solved, the insulating layer plays a role in protecting the reflecting layer and insulating the organic light-emitting diode, so that part of the incident light emitted by the organic light-emitting diode can be reflected by the cathode of the organic light-emitting diode, the other part; the light rays are reflected by the reflecting layer and the anode and are refracted for multiple times to emit light; therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emission of the display screen is improved, and the effect of improving the brightness of the display screen is achieved; the display screen does not need to increase the brightness by improving the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a plurality of times for a long time.
In one embodiment, the black film layer is provided with a plurality of first gaps, the reflecting layer is provided with a plurality of second gaps, the second gaps are in one-to-one correspondence with the first gaps, and light is emitted through the corresponding second gaps and the first gaps after being emitted and refracted for multiple times, so that the display screen has a good light emitting effect.
In one embodiment, the material of the reflective layer includes at least one of silver, aluminum, platinum and molybdenum, so that the reflective layer has high reflectivity to light.
In one embodiment, the thickness of the reflecting layer is 30 nm-150 nm, so that the reflecting layer has better light reflecting performance.
A display screen, comprising:
a cover plate;
the base plate is arranged opposite to the cover plate;
the organic light-emitting diode device is arranged on one surface, close to the cover plate, of the substrate;
the reflecting layer is formed on one surface of the cover plate, which is far away from the substrate;
and the black film layer is formed on one surface of the reflecting layer, which deviates from the cover plate.
In the display screen, the organic light-emitting diode device is arranged on one surface of the substrate, which is adjacent to the cover plate, so that the organic light-emitting diode device generates incident light towards the cover plate, the reflecting layer is formed on one surface of the cover plate, which is far away from the substrate plate, the black film layer is formed on one surface of the reflecting layer, which is far away from the cover plate, one part of the incident light is reflected by the cathode of the organic light-emitting diode, the other part of the incident light penetrates through the cathode of the organic light-emitting diode, and the reflected light reaches the surface of the anode through reflection of the reflecting layer; the light rays are reflected by the reflecting layer and the anode and are refracted for multiple times to emit light; therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emission of the display screen is improved, and the effect of improving the brightness of the display screen is achieved; the display screen does not need to increase the brightness by improving the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a plurality of times for a long time.
In one embodiment, the display screen further comprises an insulating layer, the insulating layer is arranged on one side, deviating from the cover plate, of the black film layer, the insulating layer has light transmittance, the insulating layer is arranged on one side, deviating from the cover plate, of the black film layer, light emitted by the organic light emitting diode can penetrate through the insulating layer, meanwhile, the problem that the reflecting layer is easy to scratch is avoided, and the insulating layer plays a role in protecting the reflecting layer and insulating.
In one embodiment, the material of the reflective layer includes at least one of silver, aluminum, platinum and molybdenum, so that the reflective layer has high reflectivity to light.
In one embodiment, the thickness of the reflecting layer is 30 nm-150 nm, so that the reflecting layer has better light reflecting performance.
A method of manufacturing a display screen, comprising:
providing a cover plate and a substrate;
forming a black film layer on one surface of the cover plate;
evaporating or sputtering the cover plate formed with the black film layer to form a reflecting layer on one surface of the black film layer, which is far away from the cover plate;
forming an insulating layer on one side of the black film layer, which is far away from the cover plate;
and packaging the cover plate and the substrate to ensure that the black film layer, the reflecting layer and the insulating layer are all positioned between the cover plate and the substrate.
The manufacturing method of the display screen comprises the steps of packaging the cover plate and the substrate, enabling the black film layer, the reflecting layer and the insulating layer to be positioned between the cover plate and the substrate, forming the black film layer on one surface of the cover plate, forming the reflecting layer on the surface, deviating from the cover plate, of the black film layer, forming the black film layer on the surface, deviating from the cover plate, of the cover plate, forming the reflecting layer on the surface, deviating from the cover plate, of the black film layer, arranging the organic light-emitting diode device on the surface, adjacent to the cover plate, of the substrate, enabling the organic light-emitting diode device to generate incident light towards the cover plate direction, avoiding the problem that the reflecting layer is easy to scratch, enabling the insulating layer to play a role in protecting the reflecting layer and insulating the reflecting layer, enabling light emitted by the organic light-emitting diode to penetrate through the insulating layer, the reflecting layer reflects the incident light to the surface of the cathode of the device; the light rays are reflected by the reflecting layer and the anode and are refracted for multiple times to emit light; therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emission of the display screen is improved, and the effect of improving the brightness of the display screen is achieved; the display screen manufactured by the manufacturing method of the display screen does not need to increase the brightness by increasing the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a long time.
A method of manufacturing a display screen, comprising:
providing a cover plate and a substrate;
evaporating or sputtering the cover plate to form a reflecting layer on one surface of the cover plate;
forming a black film layer on one surface of the reflecting layer, which is far away from the cover plate;
and packaging the cover plate and the substrate to ensure that the black film layer and the reflecting layer are both positioned on one side of the cover plate, which is far away from the substrate.
In the manufacturing method of the display screen, the cover plate is packaged with the substrate, the black film layer and the reflecting layer are positioned on one side of the cover plate, which is far away from the substrate, the organic light-emitting diode device can be arranged on one side of the substrate, which is close to the cover plate, so that the organic light-emitting diode device generates incident light towards the direction of the cover plate, the reflecting layer is formed on one side of the cover plate, which is far away from the substrate plate, and the black film layer is formed on one side of the reflecting layer, which is far away from the cover plate, so that the effect of screen-saving integration black is achieved, the reflecting layer can be protected, and the scratch problem of the reflecting layer is avoided; the light rays are reflected by the reflecting layer and the anode and are refracted for multiple times to emit light; therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emission of the display screen is improved, and the effect of improving the brightness of the display screen is achieved; the display screen does not need to increase the brightness by improving the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a plurality of times for a long time.
Drawings
FIG. 1 is a schematic structural diagram of a display screen according to an embodiment;
FIG. 2 is a flow chart of a manufacturing method for manufacturing the display screen shown in FIG. 1;
fig. 3 is a flowchart of a manufacturing method for manufacturing a display panel of another embodiment.
Detailed Description
To facilitate an understanding of the present application, a display panel and a method of manufacturing the same will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the display and the method of manufacturing the same are shown in the drawings. However, the display screen and the method of manufacturing the same may be embodied in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the display and its method of manufacture.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the display screen and the method of manufacturing the same is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a display screen 10 of an embodiment includes a cover plate 12, a substrate 14, an organic light emitting diode device 16, a black film layer 18, a reflective layer 22, and an insulating layer 24. The base plate and the cover plate are oppositely arranged. In the present embodiment, the substrate and the cover plate are disposed in parallel. The cover plate is connected with the substrate through sintering and packaging, so that an accommodating cavity is formed between the cover plate and the substrate. In particular, a sintering ring 13 is formed between the base plate and the cover plate, and the edges of the cover plate and the base plate are connected through the sintering ring.
In one embodiment, the organic light emitting diode device is arranged on one side of the substrate adjacent to the cover plate. In one embodiment, the sintering rings are respectively disposed around the organic light emitting diodes, so that the organic light emitting diodes are sealed in the accommodating cavities. In this embodiment, the number of the organic light emitting diode devices is plural, and the plural organic light emitting diode devices are distributed at intervals.
In one embodiment, a black film layer is formed on one side of the cover plate adjacent to the substrate. The reflecting layer is formed on one surface of the black film layer, which deviates from the cover plate. The insulating layer is arranged on one surface of the black film layer, which deviates from the cover plate. The insulating layer is located between the cover plate and the substrate and has light transmittance. In this embodiment, the black rete is the printing ink layer, makes the black rete have better light absorption effect, realizes the integrative black effect of display screen easily.
In the display screen, the organic light-emitting diode device is arranged on the surface of the substrate, which is adjacent to the cover plate, so that the organic light-emitting diode device generates incident light towards the cover plate, the black film layer is formed on the surface of the cover plate, which is adjacent to the substrate, the reflecting layer is formed on the surface of the black film layer, which is far away from the cover plate, the insulating layer is arranged on the surface of the reflecting layer, which is far away from the black film layer, the insulating layer has light transmittance, so that the problem that the reflecting layer is easy to scratch is solved, the insulating layer plays a role in protecting the reflecting layer and insulating the organic light-emitting diode, so that part of the incident light emitted by the organic light-emitting diode can be reflected by the cathode of the organic light-emitting diode, the other part; the light is reflected by the reflecting layer and the anode and is refracted for multiple times to emit light. Therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emission of the display screen is improved, and the effect of improving the brightness of the display screen is achieved; the display screen does not need to increase the brightness by improving the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a plurality of times for a long time.
As shown in FIG. 1, in one embodiment, the black film layer is formed with a plurality of first gaps 182. The reflective layer is formed with a plurality of second gaps 222. The second gaps are in one-to-one correspondence with the first gaps, and light is emitted through the corresponding second gaps and the first gaps after being emitted and refracted for multiple times, so that the display screen has a good light emitting effect. In this embodiment, a plurality of first gaps and a plurality of second gaps are distributed at intervals, so that the display screen can better emit light.
In order to make the reflective layer have high reflectivity to light, in one embodiment, the material of the reflective layer includes at least one of silver, aluminum, platinum and molybdenum, so that the reflective layer has high reflectivity to light. In this embodiment, the material of the reflective layer may be silver, aluminum, platinum, or molybdenum, or may be an alloy metal of at least two of silver, aluminum, platinum, and molybdenum. It is understood that the material of the reflective layer includes, but is not limited to, metals such as silver, aluminum, platinum, and molybdenum, or alloy metals.
In order to make the reflective layer have better light reflection performance, in one embodiment, the thickness of the reflective layer is 30nm to 150nm, so that the reflective layer has better light reflection performance. In this embodiment, the thickness of the reflective layer is 50 nm.
As shown in fig. 2, the present application further provides a method for manufacturing a display panel, which is used for manufacturing the display panel according to any of the above embodiments. In one embodiment, the manufacturing method comprises:
s101, providing a cover plate and a substrate.
And S103, forming a black film layer on one surface of the cover plate.
And S105, carrying out evaporation or sputtering on the cover plate formed with the black film layer to form a reflecting layer on one surface of the black film layer, which is far away from the cover plate. In this embodiment, the reflective layer may be formed on the black film layer by an evaporation or sputtering process. In one embodiment, the reflective layer is formed on the black film layer by CVD sputtering or thermal evaporation.
Further, before the step of depositing by evaporation the cover plate on which the black film layer is formed, after the step S103 of forming the black film layer on one surface of the cover plate, the manufacturing method further includes: the cover plate formed with the black film layer is conveyed into the metal evaporation coating cavity to carry out evaporation coating on the cover plate, and meanwhile, the evaporation coating efficiency is improved.
In this embodiment, the cover plate formed with the black film layer is subjected to evaporation so as to form a reflective layer on a surface of the black film layer away from the cover plate. In one embodiment, the reflective layer is a silver layer, which provides the reflective layer with a high reflectivity. The step of evaporating the cover plate formed with the black film layer comprises the following steps: firstly, heating and gasifying the metallic silver; and then evaporating to a preset area of the black film layer through a mask so as to form a reflecting layer in the preset area of the black film layer.
And S107, forming an insulating layer on one side of the black film layer, which is deviated from the cover plate. In this embodiment, the insulating layer shaping deviates from the one side of black rete in the reflector layer to prevent that the reflector layer is by the problem of scratch easily, play the guard action to the reflector layer, reach insulating effect simultaneously. Further, after the step of evaporating the cover plate formed with the black film layer and before the insulating layer is formed on the side of the black film layer away from the cover plate, the manufacturing method further includes: and (4) transmitting the cover plate with the formed reflecting layer out of the metal evaporation coating cavity so as to manufacture the insulating layer.
In one embodiment, after the step S103 of forming the black film on one surface of the cover plate, the manufacturing method further includes: and conveying the cover plate to a metal evaporation cavity for Ag evaporation, wherein the thickness of Ag can be set between 30nm and 150 nm. And heating and gasifying the metal Ag, evaporating the metal Ag to the black film layer area through the opening area of the metal shade, forming a reflecting layer in the specified area of the black film layer, and then transferring the metal Ag out of the metal evaporation cavity to prepare the insulating layer.
S109, packaging the cover plate and the substrate, and enabling the black film layer, the reflecting layer and the insulating layer to be located between the cover plate and the substrate. In this embodiment, the cover plate and the substrate are sintered and packaged, so that the black film layer, the reflective layer and the insulating layer are all packaged in the containing cavity.
The manufacturing method of the display screen comprises the steps of packaging the cover plate and the substrate, enabling the black film layer, the reflecting layer and the insulating layer to be positioned between the cover plate and the substrate, forming the black film layer on one surface of the cover plate, forming the reflecting layer on the surface, deviating from the cover plate, of the black film layer, forming the black film layer on the surface, deviating from the cover plate, of the cover plate, forming the reflecting layer on the surface, deviating from the cover plate, of the black film layer, arranging the organic light-emitting diode device on the surface, adjacent to the cover plate, of the substrate, enabling the organic light-emitting diode device to generate incident light towards the cover plate direction, avoiding the problem that the reflecting layer is easy to scratch, enabling the insulating layer to play a role in protecting the reflecting layer and insulating the reflecting layer, enabling light emitted by the organic light-emitting diode to penetrate through the insulating layer, the reflecting layer reflects the incident light to the surface of the cathode of the device; the light is reflected by the reflecting layer and the anode and is refracted for multiple times to emit light. Therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emission of the display screen is improved, and the effect of improving the brightness of the display screen is achieved; the display screen manufactured by the manufacturing method of the display screen does not need to increase the brightness by increasing the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a long time.
In one embodiment, the black film layer is formed with a plurality of first gaps. The reflective layer is formed with a plurality of second gaps. The second gaps are in one-to-one correspondence with the first gaps, and light is emitted through the corresponding second gaps and the first gaps after being emitted and refracted for multiple times, so that the display screen has a good light emitting effect. In this embodiment, a plurality of first gaps and a plurality of second gaps are distributed at intervals, so that the display screen can better emit light.
In order to make the reflective layer have high reflectivity to light, in one embodiment, the material of the reflective layer includes at least one of silver, aluminum, platinum and molybdenum, so that the reflective layer has high reflectivity to light. In this embodiment, the material of the reflective layer may be silver, aluminum, platinum, or molybdenum, or may be an alloy metal of at least two of silver, aluminum, platinum, and molybdenum. It is understood that the material of the reflective layer includes, but is not limited to, metals such as silver, aluminum, platinum, and molybdenum, or alloy metals.
In order to make the reflective layer have better light reflection performance, in one embodiment, the thickness of the reflective layer is 30nm to 150nm, so that the reflective layer has better light reflection performance. In this embodiment, the thickness of the reflective layer is 50 nm.
The display screen of another embodiment comprises a cover plate, a substrate, an organic light emitting diode device, a reflecting layer and a black film layer. The base plate and the cover plate are oppositely arranged. In the present embodiment, the substrate and the cover plate are disposed in parallel. The cover plate is connected with the substrate through sintering and packaging, so that an accommodating cavity is formed between the cover plate and the substrate. Specifically, a sintering ring is formed between the base plate and the cover plate, and the edges of the cover plate and the base plate are connected through the sintering ring.
In one embodiment, the organic light emitting diode device is arranged on one side of the substrate adjacent to the cover plate. In one embodiment, the sintering rings are respectively disposed around the organic light emitting diodes, so that the organic light emitting diodes are sealed in the accommodating cavities. In this embodiment, the number of the organic light emitting diode devices is plural, and the plural organic light emitting diode devices are distributed at intervals.
In one embodiment, the reflective layer is formed on a surface of the cover plate facing away from the substrate. The black rete shaping in the reflection stratum deviates from the one side of apron makes the black rete cover in the reflection stratum, avoids the reflection stratum direct to expose in the periphery of apron and leads to the problem of the easy fish tail of reflection stratum, can realize the integrative black effect of display screen simultaneously. In this embodiment, the black rete is the printing ink layer, makes the black rete have better light absorption effect, realizes the integrative black effect of display screen easily.
In the display screen, the organic light-emitting diode device is arranged on one surface of the substrate, which is adjacent to the cover plate, so that the organic light-emitting diode device generates incident light towards the cover plate, the reflecting layer is formed on one surface of the cover plate, which is far away from the substrate plate, the black film layer is formed on one surface of the reflecting layer, which is far away from the cover plate, one part of the incident light is reflected by the cathode of the organic light-emitting diode, the other part of the incident light penetrates through the cathode of the organic light-emitting diode, and the reflected light reaches the surface of the anode through reflection of the reflecting layer; the light rays are reflected by the reflecting layer and the anode and are refracted for multiple times to emit light; therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emitting of the display screen is improved, the effect of improving the brightness of the display screen is achieved, and the light emitting angle of the display screen is changed, so that the visual angle display effect of the display screen is improved, and the brightness emitted by the window area of the display screen is improved. The display screen does not need to increase the brightness by improving the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a plurality of times for a long time.
In one embodiment, the display screen further comprises an insulating layer, and the insulating layer is arranged on one side, away from the cover plate, of the black film layer. The insulating layer has light transmittance. The one side that black rete deviates from the apron is located to the insulating layer, makes the light that organic light emitting diode sent can see through the insulating layer, avoids the easy fish tail problem of reflector layer simultaneously better, and the insulating layer plays the effect of protection reflector layer and insulation.
In one embodiment, the black film layer is formed with a plurality of first gaps. The reflective layer is formed with a plurality of second gaps. The second gaps are in one-to-one correspondence with the first gaps, and light is emitted through the corresponding second gaps and the first gaps after being emitted and refracted for multiple times, so that the display screen has a good light emitting effect. In this embodiment, a plurality of first gaps and a plurality of second gaps are distributed at intervals, so that the display screen can better emit light.
In order to make the reflective layer have high reflectivity to light, in one embodiment, the material of the reflective layer includes at least one of silver, aluminum, platinum and molybdenum, so that the reflective layer has high reflectivity to light. In this embodiment, the material of the reflective layer may be silver, aluminum, platinum, or molybdenum, or may be an alloy metal of at least two of silver, aluminum, platinum, and molybdenum. It is understood that the material of the reflective layer includes, but is not limited to, metals such as silver, aluminum, platinum, and molybdenum, or alloy metals.
In order to make the reflective layer have better light reflection performance, in one embodiment, the thickness of the reflective layer is 30nm to 150nm, so that the reflective layer has better light reflection performance. In this embodiment, the thickness of the reflective layer is 50 nm.
As shown in fig. 3, the present application further provides a method for manufacturing a display panel, which is used for manufacturing the display panel according to any of the above embodiments. In one embodiment, the manufacturing method comprises:
s201, a cover plate and a substrate are provided.
S203, carrying out evaporation or sputtering on the cover plate to form a reflecting layer on one surface of the cover plate. In this embodiment, the reflective layer is formed on a surface of the cover plate facing away from the substrate. In one embodiment, the reflective layer may be formed on the cover plate by an evaporation or sputtering process. In one embodiment, the reflective layer is formed on the cover plate by CVD sputtering or thermal evaporation.
Further, before the step of performing evaporation on the cover plate, and after the step of providing a cover plate and a substrate, the manufacturing method further includes: convey the apron in the metal coating by vaporization cavity to the apron carries out the coating by vaporization, improved reflector layer coating by vaporization efficiency simultaneously, realize the effect of automatic coating by vaporization.
In this embodiment, the cover plate is evaporated to form the reflective layer on the cover plate. In one embodiment, the reflective layer is a silver layer, which provides the reflective layer with a high reflectivity. The step of evaporating the cover plate comprises the following steps: firstly, heating and gasifying the metallic silver; and then evaporating to a preset area of the cover plate through a mask so as to form a reflecting layer in the preset area of the cover plate.
S205, in the reflection stratum deviates from the one side shaping black rete of apron makes black rete cover reflection stratum, and black rete plays the effect to the reflection stratum protection, realizes the integrative black effect of display screen when the screen is breathed out simultaneously.
In one embodiment, before the step S205 of forming the black film on the side of the reflective layer away from the cover plate, the manufacturing method includes the steps of: and conveying the cover plate to a metal evaporation cavity for Ag evaporation, wherein the thickness of Ag can be set between 30nm and 150 nm. And heating and gasifying the metal Ag, evaporating the metal Ag to the cover plate through the opening area of the metal shade, forming a reflecting layer in the specified area of the cover plate, and transferring the metal Ag out of the metal evaporation cavity to prepare the insulating layer.
And S207, packaging the cover plate and the substrate to enable the black film layer and the reflecting layer to be located on the side, away from the substrate, of the cover plate. In this embodiment, the cover plate and the substrate are subjected to sintering packaging.
In the manufacturing method of the display screen, the cover plate is packaged with the substrate, the black film layer and the reflecting layer are positioned on one side of the cover plate, which is far away from the substrate, the organic light-emitting diode device can be arranged on one side of the substrate, which is close to the cover plate, so that the organic light-emitting diode device generates incident light towards the direction of the cover plate, the reflecting layer is formed on one side of the cover plate, which is far away from the substrate plate, and the black film layer is formed on one side of the reflecting layer, which is far away from the cover plate, so that the effect of screen-saving integration black is achieved, the reflecting layer can be protected, and the scratch problem of the reflecting layer is avoided; the light rays are reflected by the reflecting layer and the anode and are refracted for multiple times to emit light; therefore, after multiple reflection and refraction, the interaction among the light beams is changed, the light emission of the display screen is improved, and the effect of improving the brightness of the display screen is achieved; the display screen does not need to increase the brightness by improving the current, reduces the power consumption of the display screen, and avoids the situation that the display screen is frequently charged and discharged for a plurality of times for a long time.
Further, before the step S207 of encapsulating the cover plate and the substrate, and after the step S205 of molding a black film layer on the side of the reflective layer away from the cover plate, the manufacturing method further includes the steps of: and forming an insulating layer on one surface of the black film layer, which is far away from the reflecting layer. In this embodiment, the insulating layer has a light-transmitting property. The one side that black rete deviates from the apron is located to the insulating layer, makes the light that organic light emitting diode sent can see through the insulating layer, avoids the easy fish tail problem of reflector layer simultaneously better, and the insulating layer plays the effect of protection reflector layer and insulation.
In one embodiment, the black film layer is formed with a plurality of first gaps. The reflective layer is formed with a plurality of second gaps. The second gaps are in one-to-one correspondence with the first gaps, and light is emitted through the corresponding second gaps and the first gaps after being emitted and refracted for multiple times, so that the display screen has a good light emitting effect. In this embodiment, a plurality of first gaps and a plurality of second gaps are distributed at intervals, so that the display screen can better emit light.
In order to make the reflective layer have high reflectivity to light, in one embodiment, the material of the reflective layer includes at least one of silver, aluminum, platinum and molybdenum, so that the reflective layer has high reflectivity to light. In this embodiment, the material of the reflective layer may be silver, aluminum, platinum, or molybdenum, or may be an alloy metal of at least two of silver, aluminum, platinum, and molybdenum. It is understood that the material of the reflective layer includes, but is not limited to, metals such as silver, aluminum, platinum, and molybdenum, or alloy metals.
In order to make the reflective layer have better light reflection performance, in one embodiment, the thickness of the reflective layer is 30nm to 150nm, so that the reflective layer has better light reflection performance. In this embodiment, the thickness of the reflective layer is 50 nm.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A display screen, comprising:
a cover plate;
the base plate is arranged opposite to the cover plate;
the organic light-emitting diode device is arranged on one surface, close to the cover plate, of the substrate;
the black film layer is formed on one surface, adjacent to the substrate, of the cover plate;
the reflecting layer is formed on one surface of the black film layer, which is far away from the cover plate;
the insulating layer is arranged on one surface, deviating from the black film layer, of the reflecting layer, the insulating layer is located between the cover plate and the base plate, and the insulating layer has light transmission.
2. The display screen of claim 1, wherein the black film layer is formed with a plurality of first gaps, and the reflective layer is formed with a plurality of second gaps, the plurality of second gaps corresponding one-to-one with the plurality of first gaps.
3. The display screen of claim 1, wherein the material of the reflective layer comprises at least one of silver, aluminum, platinum, and molybdenum.
4. A display screen according to any one of claims 1 to 3, wherein the reflective layer has a thickness of from 30nm to 150 nm.
5. A display screen, comprising:
a cover plate;
the base plate is arranged opposite to the cover plate;
the organic light-emitting diode device is arranged on one surface, close to the cover plate, of the substrate;
the reflecting layer is formed on one surface of the cover plate, which is far away from the substrate;
and the black film layer is formed on one surface of the reflecting layer, which deviates from the cover plate.
6. The display screen of claim 5, further comprising an insulating layer disposed on a side of the black film layer facing away from the cover plate, wherein the insulating layer is light transmissive.
7. A display screen according to claim 5, wherein the material of the reflective layer comprises at least one of silver, aluminium, platinum and molybdenum.
8. A display screen according to any one of claims 5 to 7, characterised in that the thickness of the reflective layer is between 30nm and 150 nm.
9. A method of manufacturing a display panel, comprising:
providing a cover plate and a substrate;
forming a black film layer on one surface of the cover plate;
evaporating or sputtering the cover plate formed with the black film layer to form a reflecting layer on one surface of the black film layer, which is far away from the cover plate;
forming an insulating layer on one side of the black film layer, which is far away from the cover plate;
and packaging the cover plate and the substrate to ensure that the black film layer, the reflecting layer and the insulating layer are all positioned between the cover plate and the substrate.
10. A method of manufacturing a display panel, comprising:
providing a cover plate and a substrate;
evaporating or sputtering the cover plate to form a reflecting layer on one surface of the cover plate;
forming a black film layer on one surface of the reflecting layer, which is far away from the cover plate;
and packaging the cover plate and the substrate to ensure that the black film layer and the reflecting layer are both positioned on one side of the cover plate, which is far away from the substrate.
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| CN201911257721.XA CN110911587B (en) | 2019-12-10 | 2019-12-10 | Display screen and manufacturing method thereof |
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