CN114005856B - Display panel, manufacturing method thereof and display device - Google Patents

Display panel, manufacturing method thereof and display device Download PDF

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Publication number
CN114005856B
CN114005856B CN202111155839.9A CN202111155839A CN114005856B CN 114005856 B CN114005856 B CN 114005856B CN 202111155839 A CN202111155839 A CN 202111155839A CN 114005856 B CN114005856 B CN 114005856B
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layer
light
black matrix
display panel
flat
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CN114005856A (en
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金海源
李源规
宋一男
崔昇圭
唐波玲
康报虹
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HKC Co Ltd
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HKC Co Ltd
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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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • 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
    • 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
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • 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
    • 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
    • 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 application discloses a display panel, a manufacturing method thereof and display equipment. Wherein, display panel is including the array substrate, organic luminescent layer, planarization layer and the colored filter layer that set gradually, the colored filter layer includes: the light resistance layer comprises a plurality of color resistance units arranged side by side and a plurality of black matrixes inserted between the two color resistance units, and the surface of each black matrix facing the flat layer is provided with an installation groove; each light reflection layer is arranged in one mounting groove and protrudes out of the surface of the black matrix; the flat layer covers the light reflecting layer and the surface of the light resistance layer. The display panel of the technical scheme can prevent color mixing and improve the aperture opening ratio.

Description

Display panel, manufacturing method thereof and display device
Technical Field
The present disclosure relates to the field of display panel technologies, and in particular, to a display panel, a manufacturing method thereof, and a display device.
Background
Organic Light-Emitting Diode (OLED), also called Organic Light-Emitting semiconductor (OLED), has been widely used due to its advantages of low power consumption, fast response speed, wide viewing angle, and the like. When the OLED display panel is a front-side light emitting display panel, a Color Filter layer (Color Filter) is formed on a glass substrate, light generated on an OLED light emitting layer needs to penetrate through a flat layer and then pass through the Color Filter layer to form a Color picture, the distance between a light emitting body and the Color Filter layer is long, the obtained picture is mixed with Color, although the width of a black matrix can be widened to prevent Color mixing, the aperture ratio is reduced, and the display panel with high resolution and high efficiency is difficult to obtain.
Disclosure of Invention
The present application provides a display panel, and aims to solve the problems that a front-emitting display panel is prone to color mixing and is difficult to improve the aperture ratio.
In order to achieve the above object, the display panel provided by the present application includes an array substrate, an organic light emitting layer, a planarization layer, and a color filter layer, which are sequentially disposed, where the color filter layer includes: the light-blocking layer comprises a plurality of color resistance units arranged side by side and a plurality of black matrixes inserted between the two color resistance units, and the surface of each black matrix facing the flat layer is provided with an installation groove; each light reflection layer is arranged in one mounting groove and protrudes out of the surface of the black matrix; the flat layer covers the light reflecting layer and the surface of the light resistance layer.
In an embodiment of the present application, a cross-sectional area of the light reflection layer decreases from a bottom wall of the mounting groove to an opening thereof.
In an embodiment of the present application, an end of the light reflection layer, which is away from the mounting groove, extends into the flat layer, and a length of the end of the light reflection layer, which extends into the flat layer, is slightly smaller than a thickness of the flat layer.
In an embodiment of the present application, a peripheral side surface and a bottom surface of one end of the light reflecting layer extending into the flat layer are both smooth reflecting planes.
In an embodiment of the present application, the display panel includes a light emitting region and a non-light emitting region, the black matrix corresponds to the non-light emitting region, and a width of the black matrix is smaller than a width of the non-light emitting region.
In an embodiment of the present invention, in a connection line direction of the two photoresist units, the light emitting layer is disposed at a middle position of the black matrix, and a distance between an outer side surface of the light reflecting layer and an end portion of an adjacent black matrix is 0.5mm to 1mm.
In an embodiment of the present application, the light reflecting layer is made of gold, silver or copper;
and/or the reflectivity of the light reflecting layer is greater than or equal to 90%.
The application also provides a manufacturing method of the display panel, which comprises the following steps:
providing a substrate, and forming a plurality of light reflecting layers arranged at intervals on the substrate;
forming a black matrix on the surface of the substrate and the periphery of each light reflecting layer, wherein the height of each light reflecting layer is greater than that of the black matrix;
forming color resistance units on the periphery of the black matrix and the surface of the substrate, and forming a flat layer for coating the black matrix, the color resistance units and the light reflection layer;
providing an array substrate and an organic light-emitting layer arranged on the array substrate;
and assembling the array substrate and the organic light-emitting layer with the flat layer in a butt joint mode.
In an embodiment of the present application, the step of "assembling the array substrate and the organic light emitting layer in a butt joint manner with the planarization layer" is specifically:
coating light-curing glue on the organic light-emitting layer and the flat layer, and aligning and attaching;
and finishing the assembly of the organic light-emitting layer and the flat layer through photo hardening.
The application also provides a display device, which comprises the display panel and the front frame body, wherein the front frame body is in butt joint with the display panel.
In the technical scheme of the application, the display panel comprises an array substrate, an organic light emitting layer, a flat layer and a color filter layer, wherein a light reflecting layer is arranged in a light resistance layer of the color filter layer and is positioned in an installation groove of a black matrix and protrudes out of the surface of the black matrix, so that on one hand, light irradiated on the surface of the light reflecting layer can be reflected and enters a color resistance unit again, and the utilization rate of the light can be improved; on the other hand, the light emitted to one color resistance unit can be prevented from entering another adjacent color resistance unit, thereby effectively preventing color mixing and improving the color reproduction rate of the color resistance unit. Compared with the prior art that the light mixing is improved by widening the black matrix, the structure does not occupy an additional display area, and the light-reflecting layer is directly added, so that the width of the black matrix is not required to be increased and can be properly reduced, and the transmission area of light can be increased, thereby improving the aperture opening ratio of the display panel and forming high-resolution display; under the condition of keeping higher aperture ratio of the display panel, the light mixing phenomenon of the display panel during light emitting display is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a display panel according to a first embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of a second display panel according to the present application;
FIG. 3 is a flowchart illustrating a method of fabricating a display panel according to an embodiment of the present disclosure;
FIG. 4 is a detailed flowchart of step S5 in the manufacturing method of the display panel shown in FIG. 3;
FIG. 5 is a top view of an embodiment of a display device of the present application.
The reference numbers indicate:
Figure BDA0003285623420000031
Figure BDA0003285623420000041
the implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope claimed in the present application.
The application provides a display panel, this display panel is including array substrate, organic luminescent layer, planarization layer and the colored filter layer that sets gradually, the colored filter layer includes: the light resistance layer comprises a plurality of color resistance units arranged side by side and a plurality of black matrixes inserted between the two color resistance units, and the surface of each black matrix facing the flat layer is provided with an installation groove; each light reflection layer is arranged in one mounting groove and protrudes out of the surface of the black matrix; the flat layer covers the light reflecting layer and the surface of the light resistance layer. The light reflecting layer is arranged on the black matrix in the color filter layer, light rays enter the adjacent color resistance units again under the reflection action of the light reflecting layer, the light ray utilization rate can be improved, and the light rays emitted to one color resistance unit are prevented from entering the adjacent other color resistance unit, so that color mixing is effectively prevented, and the color reproduction rate of the color resistance units is improved. The application need not to improve the mixed light effect of light-emitting through widening the black matrix, also this structure does not occupy extra display area, when solving the luminous display panel of front and taking place the colour mixture problem easily, has improved the aperture opening ratio.
Referring to fig. 1 and fig. 2, in a first embodiment of the present application, the display panel 100 of the display panel 100 includes an array substrate 10, an organic light emitting layer 30, a planarization layer 90, and a color filter layer 50, which are sequentially disposed, where the color filter layer 50 includes: the light resistance layer 53 comprises a plurality of color resistance units 533 arranged side by side and a plurality of black matrixes 531 inserted between the two color resistance units 533, and the surface of each black matrix 531 facing the flat layer 90 is provided with an installation groove; each light reflection layer 70 is arranged in one mounting groove and protrudes out of the surface of the black matrix 531; the flat layer 90 covers the light reflecting layer 70 and the surface of the photoresist layer 53.
In the present embodiment, the display panel 100 is a front-emission structure, i.e. an organic self-luminous display, and includes an array substrate 10, an organic light-emitting layer 30, a planarization layer 90 and a color filter layer 50. The color filter layer 50 includes a plurality of color-resistance units 533 and a plurality of black matrixes 531, where one black matrix 531 is interposed between every two color-resistance units 533, that is, the black matrix 531 separates two color-resistance units 533. Here, the color resistance unit 533 is a red color resistance unit 533, a green color resistance unit 533, and a blue color resistance unit 533, and the three color resistance units 533 are sequentially arranged and repeatedly arranged in units of three. The color filter 533 may be a narrow-band transmittance color filter or other color filters, which is not limited herein. The light reflecting layer 70 is disposed in a mounting groove of the black matrix 531, an opening of the mounting groove may be square, circular or other shapes, but not limited thereto, and the shape of the light reflecting layer 70 is matched therewith. And the light reflection layer 70 protrudes out of the black matrix 531 layer, so that light disorder between two adjacent color-resisting units 533 can be effectively prevented, and light on one side can be reflected into the corresponding color-resisting unit 533 in time. The material of the light reflecting layer 70 may be metal, plastic, glass, or other materials, and is not limited herein, and may reflect light.
The planarization layer 90 covers the surfaces of the light reflective layer 70 and the photoresist layer 53, thereby protecting the structures of the photoresist layer 53 and the light reflective layer 70 and improving the flatness and sealing property of the structures. The flat layer 90 can be processed by using a mold and filling, so that the processing efficiency is improved. Of course, the planarization layer 90 needs to be a transparent material to ensure light to pass through to the color filter layer 50. Optionally, the planarization layer 90 has a high light transmittance of 95%, so that the light refraction loss is effectively reduced, and the light utilization rate is improved.
In the present application, the display panel 100 includes an array substrate 10, an organic light emitting layer 30, a planarization layer 90 and a color filter layer 50, and the organic light emitting layer 30 can emit light automatically after current is applied. Meanwhile, the light reflecting layer 70 is disposed in the photoresist layer 53 of the color filter layer 50, and the light reflecting layer 70 is located in the installation groove of the black matrix 531 and protrudes from the surface of the black matrix 531, so that on one hand, the light irradiated on the surface of the light reflecting layer can be reflected and re-enter the color resistance unit 533, and the light utilization rate can be improved; on the other hand, the light emitted to one color-resisting unit 533 can be prevented from entering another adjacent color-resisting unit 533, thereby effectively preventing color mixing and improving the color reproduction rate of the color-resisting unit 533. Compared with the prior art that light mixing is improved by widening the black matrix, the light reflecting layer 70 is directly added, the width of the black matrix 531 is not required to be increased and can be properly reduced, and then the light transmission area can be increased, so that the aperture ratio of the display panel 100 is improved, and high-resolution display is formed.
As can be understood, the array substrate 10 includes a glass substrate and a thin film transistor layer that are sequentially stacked; the thin film transistor layer includes a light shielding layer 12, a buffer layer 14, an active layer 137, a gate insulating layer 16, a gate electrode 131, a source electrode 133 and a drain electrode 135, a passivation layer 15, a pixel electrode layer 17, and the like, which are disposed from bottom to top, and the gate electrode 131, the source electrode 133, and the drain electrode 135 form a thin film transistor 13, i.e., a control switch, so that each pixel can be independently controlled. Specifically, a metal layer is deposited on a glass substrate 11 by taking the glass substrate 11 as a support, and the metal layer is patterned through a photomask to form a light shielding layer 12 on the glass substrate; a buffer layer 14 is formed on the light shielding layer 12; forming an active layer 137 on the buffer layer 14, and doping the active layer 137 to form a source region and a drain region; a gate insulating layer 16 is formed on the active layer 137; then, a metal layer is deposited on the gate insulating layer 16, and the metal layer is patterned to form a gate 131, and at the same time, a scan line is formed on the same layer as the gate 131, and the scan line is connected to the gate 131 to provide a turn-on/turn-off voltage for the tft. Forming an organic insulating layer 18 on the gate electrode 131; a metal layer is deposited on the organic insulating layer 18, and source and drain electrodes 133 and 135 are formed by patterning the metal layer to be spaced apart, and the source electrode 133 is connected to a source region through a via hole opened in the organic insulating layer 18, and the drain electrode 135 is also connected to a drain region through a via hole opened in the organic insulating layer 18, and a channel region is formed between the source electrode 133 and the drain electrode 135. The material of the metal layer is an opaque conductive metal material, such as one or a combination of molybdenum, titanium, chromium, and aluminum, which is not limited herein. The material of the gate insulating layer 30 may be one or a combination of silicon oxide and silicon nitride.
After the thin film transistor 13 is formed, a passivation layer 15 is further deposited on the source electrode 133, the drain electrode 135 and the organic insulating layer 18, and the passivation layer 15 is patterned by a photo-masking process, where the material of the passivation layer 15 may be one or more of silicon oxide and silicon nitride. A through via is formed on the passivation layer 15, which may expose a portion of the drain electrode 135; then, a transparent conductive layer, which may be Indium Tin Oxide (ITO), is formed on the passivation layer 15, and the transparent conductive layer is patterned by a photo-masking process to form a pixel electrode layer 17 with a specific shape, and the pixel electrode layer 17 is electrically connected to the drain electrode 135 through a via hole, thereby serving as an anode to cooperate with the cathode layer 33 of the organic light emitting layer 30 to generate light emitting molecules.
The organic light emitting layer 30 is disposed on the array substrate 10 and includes an organic layer 31, a cathode layer 33, and a light emitting planarization layer 35, so that cations and anions can be ionized, and the collision of the two ions excites light emitting molecules, and display of a color screen is realized through the planarization layer 90 and the color filter layer 50. The structure of the array substrate 10 and the structure of the organic light emitting layer 30 are only for understanding the display panel 100 of the present application and are not limited to the above structure.
In addition, a metal protection layer 19 may be disposed between the passivation layer 15 and the pixel electrode layer 17, the metal protection layer 19 directly faces the thin film transistor 13, an array planarization layer is disposed between the metal protection layer 19 and the pixel electrode layer 17, and the metal protection layer 19 can effectively prevent diffusion of hydrogen in the array planarization layer, so as to protect the thin film transistor 13, maintain the characteristics thereof stable, and simultaneously protect the cathode layer 33.
In an embodiment of the present application, the light reflecting layer 70 is made of gold, silver or copper;
and/or the reflectivity of the light reflecting layer 70 is greater than or equal to 90%.
In this embodiment, in order to make the light reflection layer 70 have a good reflection effect, the material thereof is set to be one of gold, silver and copper, and since the metal has a good reflection effect and a good oxidation resistance, the time of high reflectivity can be prolonged, and the use effect can be ensured. The light reflecting layer 70 made of the material can reflect the light incident on the black matrix 531 and the light reflecting layer 70 back into the color resistance unit 533, thereby reusing the light emission and effectively improving the light utilization rate. Of course, in other embodiments, other metal materials may be used.
On the basis of gold, silver or copper, the reflectivity of the light reflection layer 70 is set to be greater than or equal to 90%, for example, 90%, 95%, 100%, etc., regardless of whether the material is used, so that most of the light can be reflected, the reflectivity and the utilization rate of the light are further improved, the color contrast is improved, and the light mixing is effectively prevented.
With reference to fig. 2, in an embodiment of the present application, the cross-sectional area of the light reflecting layer 70 decreases from the bottom wall of the mounting groove to the opening thereof.
In this embodiment, in order to further improve the structural stability of the light reflection layer, in the direction from the bottom wall of the mounting groove to the opening thereof, that is, in the direction from the photoresist layer 53 to the organic light emitting layer 30, the cross-sectional area of the light reflection layer 70 is in a decreasing trend, that is, the area of the bottom wall close to the mounting groove is large, and the cross-section of the end coated by the flat layer 90 is small, so as to effectively ensure the bonding firmness with the photoresist layer 53. Meanwhile, the structure also enables the peripheral side surface of the light emitting layer to be arranged in an acute angle or an obtuse angle with the surfaces of the color resistance units 533 and the black matrix 531, namely, the peripheral side surface is inclined to the incident light, so that more light can be reflected to the nearest color resistance units 533, and the reflection probability is effectively improved.
In an embodiment of the present application, an end of the light reflection layer 70 away from the mounting groove extends into the flat layer 90, and a length of the end of the light reflection layer 70 extending into the flat layer 90 is slightly smaller than a thickness of the flat layer 90.
In this embodiment, one end of the light reflection layer 70 away from the mounting groove is coated by the flat layer 90, that is, the end portion of the light reflection layer 70 extends into the flat layer 90, and the end portion of the light reflection layer 70 does not protrude out of the flat layer 90, that is, the length of the end portion extending into the flat layer 90 is slightly smaller than the thickness of the flat layer 90, so that the light reflection layer 70 can be ensured to extend sufficiently in the flat layer 90, the reflection effect is improved, meanwhile, the overall structure of the color filter layer 50 can be protected, and the sealing performance and the structural stability are improved. Here, the height of the light reflection layer 70 within the planarization layer 90 may be adjusted according to an actual device structure.
In an embodiment of the present application, the light reflecting layer 70 has a smooth reflecting plane 71 on both the peripheral side and the bottom of one end extending into the flat layer 90.
In this embodiment, in order to further improve the reflection effect, the peripheral side surface and the bottom surface of the light reflection layer 70 extending into the flat layer 90 are both set as the smooth reflection planes 71, so as to ensure that light is reflected without diffuse reflection, improve the uniformity of light incident to the color resistance unit 533, and further improve the color reproduction rate. Here, the opening of the installation groove is rectangular, that is, the cross section of the light reflection layer 70 is also rectangular, and the entire shape is a frustum of a square, so that it has four side surfaces and a bottom surface facing the flat layer 90, and each surface is provided with the reflection plane 71. Of course, on the basis of this, the surface of the light reflection layer 70 in the black matrix 531 layer may be also provided with a smooth reflection plane 71, thereby further improving the reflection efficiency, and the light absorbed by the black matrix 531 layer may be re-reflected, thereby improving the color reproduction ratio.
Specifically, the display panel includes a light emitting region and a non-light emitting region, and the array substrate 10 also includes a light emitting region and a non-light emitting region, the non-light emitting region of the array substrate 10 is a region where the metal layer is located, and the black matrix 531 corresponds to the non-light emitting region, in an embodiment of the present application, a width of the black matrix 531 is smaller than a width of the non-light emitting region.
In this embodiment, due to the arrangement of the light reflection layer 70, the light mixture of two adjacent color-resisting units 533 can be effectively blocked, so that the width of the black matrix 531 can be significantly reduced, and here, the width of the black matrix 531 can be set according to the actual product size. Because the black matrix 531 is opaque, the black matrix 531 is disposed corresponding to the non-light-emitting area, so that the blocking of light can be reduced, and the transmittance can be improved. The width of the black matrix 531 is reduced, and may be smaller than the width of the non-light-emitting area, so as to further improve the aperture ratio and the transmittance of the display panel 100, and effectively improve the display effect.
In one embodiment of the present application, the light emitting layer is disposed at a middle position of the black matrix 531 in a line direction of the two photoresist units. The distance between one outer side surface of the light reflecting layer 70 and one end portion of the adjacent black matrix 531 is 0.5mm to 1mm.
In this embodiment, in order to make the reflectivity of the color resistor units 533 on two sides of the same black matrix 531 equal, the light reflection layer 70 is disposed on the black matrix 531 in the direction in which the color resistor units 533 are arranged, that is, the distance between the center of the light reflection layer 70 and two ends of the black matrix 531 is the same, so that when receiving light, a relatively equal probability can be obtained, and the amount of light reflected to the nearest color resistor unit 533 is the same, thereby making the color more uniform, ensuring the color reproduction rate, and improving the display effect.
The distance between the outer side surface of the light reflection layer 70 and the end part of the black matrix 531 adjacent to the side surface is set to be as small as possible, so that the light can be reduced to be absorbed by the black matrix 531 at the edge after being reflected by the light reflection layer 70, and therefore, the reflected light can bypass the black matrix 531 as much as possible and exit from the color resistance unit 533, thereby further improving the light transmittance and improving the reflectivity of the light reflection layer 70.
Please refer to fig. 3, the present application further provides a manufacturing method of a display panel, which includes the following steps:
step S1: providing a substrate, and forming a plurality of light reflecting layers 70 arranged at intervals on the substrate;
step S2: forming a black matrix 531 on the surface of the substrate and the periphery of each light reflecting layer 70, wherein the height of the light reflecting layer 70 is greater than that of the black matrix 531;
and step S3: forming color resistance units 533 on the periphery of the black matrix 531 and the surface of the substrate, and forming a flat layer 90 covering the black matrix 531, the color resistance units 533 and the light reflection layer 70;
and step S4: providing an array substrate 10 and an organic light emitting layer 30 disposed on the array substrate 10;
step S5: the array substrate 10 and the organic light emitting layer 30 are assembled in a butt joint with the planarization layer 90.
In this embodiment, in step S1, in order to process the color filter layer 50, a substrate made of glass, which is smooth and pollution-free, is prepared, and then a plurality of spaced apart light reflecting layers 70 are formed on the substrate. The specific steps are that a metal film is deposited on a substrate, then the metal film is patterned to form the light reflection layer 70, at the moment, the bottom of the light reflection layer 70 is attached to the substrate, and the substrate plays a supporting role. In step S2, a plurality of black matrixes 531 arranged at intervals are formed on the substrate, such that each black matrix 531 surrounds a periphery of one light reflection layer 70, and thus the light reflection layer 70 is located in the black matrix 531, and a height of the black matrix 531 is lower than a height of the light reflection layer 70, that is, the light reflection layer 70 protrudes from the black matrix 531. Here, the process of the black matrix 531 layer is the same as the detailed step of the light reflection layer 70.
In step S3, three color-resisting units 533 are respectively formed on two sides of the black matrix 531, and the three color-resisting units 533 are alternately arranged in sequence, so that the photoresist layer 53 is formed. Finally, plastic packaging is performed on the surfaces of the black matrix 531, the color resistor unit 533, and the light reflecting layer 70 to form the flat layer 90 covering the light reflecting layer 70 and the photoresist layer 53. Specifically, the template is fixed on the substrate and surrounds the periphery of the photoresist layer 53, and then the material for forming the planarization layer 90 is filled.
In step S4, the processing method of the array substrate 10 is the same as the existing processing method, a photomask, a buffer layer, an active layer, a gate insulating layer, a gate layer, an organic insulating layer, a source electrode, a drain electrode, a passivation layer, a pixel defining layer, and the like are sequentially deposited on a glass substrate, a cathode and an anode of the organic light emitting layer 30 are formed on the array substrate 10, and then plastic encapsulation of the light emitting planarization layer 90 is performed, so as to ensure the stability of the structure. In step S5, the array substrate 10 and the organic light emitting layer 30 integrally molded are assembled with the integrated planarization layer 90 and the color filter layer 50, specifically, the organic light emitting layer 30 is assembled with the planarization layer 90 in a butt joint manner. According to the manufacturing method, other processes are not needed to be added, and only the layers are deposited in sequence, so that the forming effect is effectively guaranteed, the processing is convenient, and the processing efficiency is improved. Meanwhile, due to the existence of the light reflection layer 70, the light irradiated on the surface of the light reflection layer can be reflected and reenters the color resistance unit 533, so that the light utilization rate is improved; the light emitted to one color resistance unit 533 can be prevented from entering another adjacent color resistance unit 533, thereby effectively preventing color mixing and improving the color reproduction rate of the color resistance unit 533. The structure does not occupy an additional display area, and thus, the light transmission area can be increased, thereby improving the aperture ratio of the display panel 100 and forming a high-resolution display.
Referring to fig. 4, in an embodiment of the present application, the step of "assembling the array substrate 10 and the organic light emitting layer 30 to the planarization layer 90 in a butt joint manner" includes:
step S51: coating the organic light-emitting layer 30 and the flat layer 90 with light-curing adhesive, and aligning and bonding;
step S52: the assembly of the organic light emitting layer 30 and the planarization layer 90 is completed by photo hardening.
In this embodiment, in order to realize stable connection between the organic light emitting layer 30 and the flat layer 90, the surfaces of the organic light emitting layer and the flat layer are coated with the light curing adhesive, and then the edges of the organic light emitting layer and the flat layer are aligned by using equipment and then bonded to ensure the yield of the product. And then, performing a light curing process, wherein the light curing glue can be cured by using ultraviolet light so as to realize stable connection between the light curing glue and the light curing glue.
Referring to fig. 5, the present application further provides a display device 200, which includes the display panel 100 and the front frame 400, wherein the front frame 400 is assembled with the display panel 100 in a butt joint manner. Since the display panel 100 in the display device 200 of the present application includes all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described in detail herein.
The display device 200 may be a mobile terminal, such as a mobile phone, a tablet computer, or other household appliances with a display function, such as a display, a television, or the like, which is not limited herein.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application, and all modifications, equivalents, and direct/indirect applications in other related fields of technology that are within the scope of the present application are included in the present application.

Claims (9)

1. The utility model provides a display panel, display panel is including the array substrate, organic light emitting layer, planarization layer and the colored filter layer that set gradually, its characterized in that, the colored filter layer includes:
the photoresist layer comprises a plurality of color resistance units arranged side by side and a plurality of black matrixes inserted between the two color resistance units, and the surface of each black matrix facing the flat layer is provided with a mounting groove; and
each light reflection layer is arranged in one mounting groove and protrudes out of the surfaces of the black matrix and the light resistance layer;
the flat layer covers the light reflecting layer and the surface of the light resistance layer;
the end face of the light reflection layer, which is far away from the flat layer, is flush with the surface of the black matrix, which is far away from the flat layer, one end of the light reflection layer, which is far away from the mounting groove, extends into the flat layer, and the peripheral side face and the bottom face of one end of the light reflection layer, which extends into the flat layer, are smooth reflection planes; the peripheral side surface of the light reflection layer and the surfaces of the color resistance units and the black matrix are arranged in an acute angle or an obtuse angle.
2. The display panel according to claim 1, wherein the cross-sectional area of the light reflecting layer decreases in a direction from the bottom wall of the mounting groove to the opening thereof.
3. The display panel of claim 1, wherein the light reflecting layer extends into an end of the planar layer a length less than a thickness of the planar layer.
4. The display panel according to claim 1, wherein the display panel includes a light-emitting area and a non-light-emitting area, the black matrix corresponds to the non-light-emitting area, and a width of the black matrix is smaller than a width of the non-light-emitting area.
5. The display panel according to claim 1, wherein the light emitting layer is disposed at a middle position of the black matrix in a direction of a line connecting the two color resistance units, and a distance between an outer side surface of the light reflecting layer and an end portion of the adjacent black matrix is 0.5mm to 1mm.
6. The display panel according to claim 1, wherein the light reflective layer is made of gold, silver or copper;
and/or the reflectivity of the light reflecting layer is greater than or equal to 90%.
7. The manufacturing method of the display panel is characterized by comprising the following steps of:
providing a substrate, and forming a plurality of light reflecting layers arranged at intervals on the substrate;
forming a black matrix on the surface of the substrate and the periphery of each light reflection layer, wherein the height of each light reflection layer is greater than that of the black matrix, and the end surface of each light reflection layer, which is far away from the flat layer, is flush with the surface of the black matrix, which is far away from the flat layer;
forming color resistance units on the periphery of the black matrix and the surface of the substrate, and forming a flat layer for coating the black matrix, the color resistance units and the light reflection layer; each light reflection layer protrudes out of the surfaces of the black matrix and the color set unit; the flat layer covers the light reflecting layer and the surfaces of the color set units; the peripheral side surface and the bottom surface of one end of the light reflection layer extending into the flat layer are both smooth reflection planes; the peripheral side surface of the light reflection layer and the surfaces of the color resistance units and the black matrix are arranged in an acute angle or an obtuse angle;
providing an array substrate and an organic light-emitting layer arranged on the array substrate;
and assembling the array substrate and the organic light-emitting layer with the flat layer in a butt joint mode.
8. The method for manufacturing a display panel according to claim 7, wherein the step of assembling the array substrate and the organic light emitting layer in a butt joint manner with the planarization layer specifically comprises:
coating light curing glue on the organic light-emitting layer and the flat layer, and aligning and bonding;
and finishing the assembly of the organic light-emitting layer and the flat layer through light hardening.
9. A display device comprising the display panel according to any one of claims 1 to 6 and a front frame body which is assembled in butt joint with the display panel.
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