CN116828920A - Display panel and display device - Google Patents

Abstract

The application discloses a display panel and a display device, wherein the display panel comprises a substrate, a light-emitting unit, a pixel definition layer, a first metal layer, an insulating layer, a first packaging layer, a color filter layer and a second packaging layer; the first metal layer is arranged on the pixel definition layer and corresponds to the non-opening area, and the top electrodes of the adjacent light emitting units are respectively connected with the first metal layer; the insulating layer is arranged in the non-opening area and covers the first metal layer; the first packaging layer is arranged to cover the light emitting unit and the insulating layer; the color filter layer comprises a plurality of color filter parts, and the color filter parts are positioned in the opening areas and are arranged on the first packaging layer; and the second packaging layer is arranged to cover the color filter layer, so that the thickness of the display panel is reduced, the glare phenomenon is reduced, and the display effect is improved.

Description

Display panel and display device

Technical Field

The present application relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

With the continuous development of OLED (Organic Light-Emitting Diode) display technology, OLED is also being widely used in displays of smartphones, tablets, computers, televisions, and the like. OLED displays have the advantages of thin and light weight, high contrast, fast response, wide viewing angle, high brightness, full color, etc. In order to reduce the reflectivity of external light in an OLED display, a circular polarizer is attached to the light-emitting surface of the OLED display in the mainstream scheme at present, but the scheme reduces the light-emitting effect due to the fact that the light loss of the circular polarizer is large. Another scheme is to set a color filter on the light emitting surface of the OLED display, to improve the light emitting efficiency by the color filter, and to reduce the effect of the reflection of the ambient light in the OLED display by the Black Matrix (BM).

However, in the conventional scheme of providing the color filter for the OLED display, a flat layer, a cover plate, etc. are required to be additionally provided, and there is a problem of a thick thickness. In this regard, a technical problem to be solved by those skilled in the art is urgent.

Disclosure of Invention

The application aims to provide a display panel and a display device, which are used for reducing the thickness of the display panel, reducing the glare phenomenon and improving the display effect.

The application discloses a display panel which comprises an opening area and a non-opening area, wherein the display panel comprises a substrate, a light-emitting unit, a pixel definition layer, a first metal layer, an insulating layer, a first packaging layer, a color filter layer and a second packaging layer; the light-emitting units are respectively arranged corresponding to the opening areas and comprise a bottom electrode, a light-emitting layer and a top electrode which are sequentially stacked along the direction away from the substrate; the pixel definition layer is arranged corresponding to the non-opening area; the first metal layer is arranged on the pixel definition layer and corresponds to the non-opening area, and the top electrodes of the adjacent light emitting units are respectively connected with the first metal layer; the insulating layer is arranged in the non-opening area and covers the first metal layer; the first packaging layer is arranged to cover the light emitting unit and the insulating layer; the color filter layer comprises a plurality of color filter parts, and the color filter parts are positioned in the opening areas and are arranged on the first packaging layer; the second packaging layer is arranged to cover the color filter layer; wherein, two adjacent color filter parts are separated by the first metal layer and the insulating layer; the first metal layer is formed by adopting a blackened metal material and/or the insulating layer is formed by adopting a black insulating material.

Optionally, the color filter layer further includes a black matrix, where the black matrix is disposed on the insulating layer and is located between two adjacent color filter portions; the second encapsulation layer is disposed on the black matrix.

Optionally, the first encapsulation layer includes a first inorganic encapsulation layer, and the second encapsulation layer includes a first organic encapsulation layer and a second inorganic encapsulation layer; the first inorganic packaging layer is arranged to cover the light emitting unit and the insulating layer; the first organic encapsulation layer covers the color filter portion and the black matrix arrangement, and the second inorganic encapsulation layer covers the first organic encapsulation layer arrangement.

Optionally, the surface of the black matrix far from the substrate side is not lower than the surface of the color filter part far from the substrate side.

Optionally, in the same non-opening area, the black matrix includes a first light shielding portion and a second light shielding portion, and the second light shielding portion is disposed on the first light shielding portion; the surface of the first shading part, which is far away from the substrate, is flush with the surface of the color filter part, which is far away from the substrate; the width of the second light shielding part is larger than that of the first light shielding part.

Optionally, the orthographic projection of the second light shielding part on the substrate overlaps with the orthographic projection of the bottom electrode on the substrate, and does not overlap with the orthographic projection of the light emitting layer of the light emitting unit on the substrate.

Optionally, the surface of the color filter portion on the side far away from the substrate is lower than the surface of the insulating layer on the side far away from the substrate.

Optionally, the insulating layer is formed by using a black insulating material, and the orthographic projection of the insulating layer on the substrate and the orthographic projection of the pixel defining layer on the substrate are in a range, and are not overlapped with the orthographic projection of the bottom electrode of the light emitting unit on the substrate; the plurality of color filter parts include a plurality of red filter parts, a plurality of green filter parts, and a plurality of blue filter parts.

Optionally, the sum of the thicknesses of the first metal layer and the insulating layer is greater than or equal to the thickness of the color filter layer.

The application discloses a display device which comprises a driving circuit and the display panel, wherein the driving circuit is used for driving the display panel to display.

According to the application, the eave structures formed by the first metal layer and the insulating layer are used as the interval, the color filter layer is arranged between two adjacent eave structures, and the color filter layer is arranged in the packaging layer, namely between the first packaging layer and the second packaging layer, so that the color filter layer is directly arranged on the substrate on the premise of not influencing the packaging effect of the packaging layer, and the thickness of the originally arranged color filter layer is reduced. On the one hand, the color filter layer is directly aligned through the adjacent eave structure without additionally arranging a groove for accommodating, so that the problem of inaccurate alignment of the color filter layer and the light-emitting unit is avoided, and the accuracy of manufacturing the color filter layer can be improved. On the other hand, the first metal layer or the insulating layer is blackened, so that the blackened first metal layer or the blackened insulating layer is used for shading the different color filter parts and absorbing part of reflected light. The first blackened metal layer or the blackened insulating layer is used for preventing color mixing among the color filtering parts with different colors, blocking reflected light rays with large angles and preventing phenomena such as glare.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is evident that the figures in the following description are only some embodiments of the application, from which other figures can be obtained without inventive effort for a person skilled in the art. In the drawings:

fig. 1 is a schematic view of a display panel according to a first embodiment of the present application;

FIG. 2 is a schematic diagram of a second display panel according to a first embodiment of the present application;

FIG. 3 is a schematic diagram of a display panel according to a second embodiment of the present application;

FIG. 4 is a schematic diagram of a display panel according to a third embodiment of the present application;

fig. 5 is a schematic view of a display device according to a fourth embodiment of the present application.

100 parts of a display panel; 101. an opening region; 102. a non-open region; 110. a substrate; 120. a light emitting unit; 121. a bottom electrode; 122. a light emitting layer; 123. a top electrode; 130. a pixel definition layer; 140. a first encapsulation layer; 142. a second encapsulation layer; 143. a first organic encapsulation layer; 144. a second inorganic encapsulation layer; 150. a first metal layer; 151. an insulating layer; 160. a black matrix; 161. a first light shielding portion; 162. a second light shielding portion; 170. a color filter layer; 171. a color filter; 172. a first color filter layer; 173. a second color filter layer; 200. a display device; 210. and a driving circuit.

Detailed Description

It is to be understood that the terminology used herein, the specific structural and functional details disclosed are merely representative for the purpose of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. In addition, terms of the azimuth or positional relationship indicated by "upper", "lower", "left", "right", "vertical", "horizontal", etc., are described based on the azimuth or relative positional relationship shown in the drawings, and are merely for convenience of description of the present application, and do not indicate that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The application is described in detail below with reference to the attached drawings and alternative embodiments.

Embodiment one:

fig. 1 is a schematic view of a display panel according to a first embodiment of the present application, and referring to fig. 1, the present application discloses a display panel 100, the display panel 100 including an opening area 101 and a non-opening area 102; the opening area 101 generally refers to a position of the color filter 171, and is an area capable of displaying colors such as red, green, and blue when displayed, and generally corresponds to an area between adjacent pixel defining layers 130 of the display panel 100, while the non-opening area 102 is a position of the black matrix 160, and is an area capable of displaying black when displayed, generally corresponds to an area of the pixel defining layer 130, and generally, both the opening area 101 and the non-opening area 102 are located in the display area of the display panel 100.

The display panel 100 further includes a substrate 110, a light emitting unit 120, a pixel defining layer 130, a first metal layer 150, an insulating layer 151, a first encapsulation layer 140, a color filter layer 170, and a second encapsulation layer 142; the light emitting units 120 are respectively arranged corresponding to the opening areas 101, and the light emitting units 120 comprise a bottom electrode 121, a light emitting layer 122 and a top electrode 123 which are sequentially stacked along the direction away from the substrate 110; the pixel defining layer 130 is disposed corresponding to the non-opening area 102; the first metal layer 150 is disposed on the pixel defining layer 130 and corresponding to the non-opening region 102, and the top electrodes 123 of the adjacent light emitting units 120 are respectively connected to the first metal layer 150; the insulating layer 151 is disposed in the non-opening region 102 and covers the first metal layer 150; the first encapsulation layer 140 is disposed to cover the light emitting unit 120 and the insulating layer 151; the color filter layer 170 includes a plurality of color filter portions 171, and the color filter portions 171 are located in the opening area 101 and disposed on the first encapsulation layer 140; and the second encapsulation layer 142 is disposed to cover the color filter layer 170.

Wherein two adjacent color filter portions 171 are separated by the first metal layer 150 and the insulating layer 151; the first metal layer 150 is formed using a blackened metal material and/or the insulating layer 151 is formed using a black insulating material.

The application uses the eave structure formed by the first metal layer 150 and the insulating layer 151 as a space, the color filter layer 170 is arranged between two adjacent eave structures, and the color filter layer 170 is arranged in the packaging layer, namely between the first packaging layer 140 and the second packaging layer 142, and the color filter layer 170 is directly arranged on the substrate 110 on the premise of not influencing the packaging effect of the packaging layers, so that the thickness of the originally arranged color filter layer 170 is reduced. On the one hand, the color filter layer 170 and the light-emitting unit 120 are prevented from being inaccurately aligned by directly aligning the adjacent eave structures without additionally arranging grooves for accommodating, and the manufacturing accuracy of the color filter layer 170 can be improved. On the other hand, the first metal layer 150 or the insulating layer 151 is blackened, whereby the blackened first metal layer 150 or the blackened insulating layer 151 is used to block light of the different color filter 171 and absorb part of the reflected light. The blackened first metal layer 150 or the blackened insulating layer 151 prevents color mixing between the color filter portions 171 of different colors, and blocks reflected light of a large angle, preventing phenomena such as glare.

It can be understood that the first metal layer 150 and the insulating layer 151 of the present application are formed into an eave structure, which is a mask removing evaporation process, that is, the pixel defining layer 130 is formed on the substrate 110, the first metal layer 150 is formed on the pixel defining layer 130, the insulating layer 151 is formed on the first metal layer 150, and the width of the insulating layer 151 is slightly larger than the width of the first metal layer 150, so that the eave structure is formed. In the process of forming the light emitting unit 120, the metal mask is not required, and when the film layers of the light emitting unit 120 are evaporated, the film layers, such as the light emitting layer 122, are formed just between the pixel defining layers 130 by shielding the eave structure. This technique does not require the use of a mask, and is called unmasking evaporation. However, since the first metal layer 150 is disposed on the pixel defining layer 130, when the first metal layer 150 and the insulating layer 151 are used to implement the mask removing evaporation, the first metal layer 150 is easy to receive the ambient incident light with a large angle, and the metal layer has a higher reflectivity, so that the ambient incident light with a large angle is easy to reflect to the adjacent pixels through the first metal layer 150 and then be emitted. The application can blacken the first metal layer 150 or blacken the insulating layer 151 or directly arrange the first shading layer above the first metal layer 150 to shade external environment light, thereby avoiding glare caused by reflection after the external environment light is injected into the first metal layer 150. It should be understood that the above three light shielding processes can be applied to any of the following embodiments, and will not be described herein.

Wherein the width of the first metal layer 150 is smaller than the width of the insulating layer 151. The first metal layer 150 has a conductive property, and the top electrode 123 of the light emitting layer 122 extends from the opening region 101 to the non-opening region 102, abuts against the first metal layer 150, and is provided with a voltage signal by the first metal layer 150. The first metal layer 150 in this embodiment is a network structure formed by a plurality of metal wires in a top view. Only the cross-sectional view of the first metal layer 150 is illustrated in this embodiment. The insulating layer 151 mainly plays an insulating role.

In the first embodiment of the present application, the first metal layer 150 is mainly described as an example. In this embodiment, the blackened first metal layer 150 replaces the Black Matrix (BM) to further reduce the manufacturing process of the BM and avoid the problem of alignment error caused by the BM in the manufacturing process. Because the BM material contains carbon black particles in the components, and a low-temperature process is used, the process Margin is small (the adjustable value is small), carbon black residues are easy to appear when the section difference is large, reliability is affected, the subsequent process and the wiring lap joint on a COE structure (including the structures such as BM, RGB color film and the like) are affected, and the saw teeth at the edge of the BM are serious. In the present application, the first metal layer 150 replaces the BM, so that the technical problems caused by the BM can be perfectly eliminated, and the reliability and the display quality of the display panel 100 can be further improved.

Specifically, the first encapsulation layer 140 includes a first inorganic encapsulation layer, and the second encapsulation layer 142 includes a first organic encapsulation layer 143 and a second inorganic encapsulation layer 144; the first inorganic encapsulation layer is disposed to cover the light emitting unit 120 and the insulating layer 151; the first organic encapsulation layer 143 is disposed to cover the color filter 171 and the black matrix 160, and the second inorganic encapsulation layer 144 is disposed to cover the first organic encapsulation layer 143.

The first encapsulation layer 140 and the second encapsulation layer 142 in this embodiment may be provided with alternating arrangement of a plurality of inorganic encapsulation layers and a plurality of organic encapsulation layers. The material of the inorganic encapsulation layer may be silicon nitride (SiNx) with good water and oxygen blocking effect, but is not limited to silicon nitride, and the material of the organic encapsulation layer may be silicon carbonitride (SiCN) or silicon oxycarbide (SiOC).

In the display panel 100 of the present application, the color filter layer 170 is disposed in the encapsulation layer, so that the use of the cover plate is reduced, the thickness of the display panel 100 is reduced, and the thickness of the display panel 100 is further reduced by using the space between eave structures. Moreover, a solution is provided for the flexible display panel 100, the folded display panel 100.

The light emitting unit 120 in the present application may be classified into a red light emitting unit 120, a green light emitting unit 120, and a blue light emitting unit 120, or a white light emitting unit 120. The color filter 171 may be divided into a red filter, a green filter, and a blue filter, and is provided corresponding to the red light emitting unit 120, the green light emitting unit 120, and the blue light emitting unit 120.

When the light emitting unit 120 is a white light emitting unit 120, RGB colors are displayed mainly by the color filter 171, but a large angle light emitted from the light emitting unit 120, for example, a light emitted from the light emitting unit 120 corresponding to a red filter, is incident on an adjacent green filter or blue filter due to the downward movement of the color filter 171, resulting in a color mixture phenomenon.

In this regard, the present application also discloses another display panel 100. Fig. 2 is a schematic view of a second display panel according to the first embodiment of the present application, and referring to fig. 2, a surface of the color filter 171 on a side away from the substrate 110 is lower than a surface of the insulating layer 151 on a side away from the substrate 110.

In this embodiment, the surface height of the color filter 171 is lower than the surface height of the insulating layer 151, so that the light having a large angle is blocked by the blackened insulating layer 151 or the blackened first metal layer 150.

In this embodiment, the insulating layer 151 is mainly required to be blackened, and the blackout effect is achieved by the blacked insulating layer 151. The specific light shielding amount control is realized mainly by setting the width of the insulating layer 151. It should be noted that the wider the insulating layer 151, the smaller the area of the corresponding opening region 101, and the better the color mixing prevention effect. The narrower the width of the insulating layer 151, the larger the area of the corresponding opening region 101, but the more pronounced the effect of color mixing.

The insulating layer 151 is formed of a black insulating material, and the orthographic projection of the insulating layer 151 on the substrate 110 coincides with the orthographic projection of the pixel defining layer 130 on the substrate 110.

Specifically, the insulation layer 151 is in a range of the orthographic projection of the substrate 110 and the orthographic projection of the pixel defining layer 130 on the substrate 110, and does not overlap with the orthographic projection of the bottom electrode 121 of the light emitting unit 120 on the substrate 110. I.e., the maximum width of the insulating layer 151 does not exceed the range of the pixel defining layer 130 and is not less than the range of the first metal layer 150.

In this embodiment, the specific implementation manner of making the surface of the color filter 171 far from the substrate 110 lower than the surface of the insulating layer 151 far from the substrate 110 includes a manner of thickening the first metal layer 150 and the insulating layer 151, or a manner of thinning the color filter 171. By thickening the first metal layer 150 and the insulating layer 151, it is mainly related to a mask removing evaporation process, if the thicknesses of the first metal layer 150 and the insulating layer 151 are thickened, the corresponding evaporation angle needs to be adjusted in the process of the light emitting unit 120, so that enough film layers such as the light emitting layer 122 can be evaporated in an effective light emitting area, and the light emitting unit 120 is not affected.

By thinning the color filter layer 170, it is necessary to control the thickness of the color filter portion 171 by vapor deposition, thereby reducing the thickness of the color filter layer 170. However, the thickness of the first metal layer 150 and the insulating layer 151 is relatively easily increased, and the main reason is that the thickness of the color filter 171 cannot be reduced to some extent. In this embodiment, therefore, this is achieved mainly by thickening the first metal layer 150 and the insulating layer 151.

Specifically, the first encapsulation layer 140 includes a first inorganic encapsulation layer, and the second encapsulation layer 142 includes a first organic encapsulation layer 143 and a second inorganic encapsulation layer 144; the first inorganic encapsulation layer is disposed to cover the light emitting unit 120 and the insulating layer 151; the first organic encapsulation layer 143 is disposed to cover the color filter 171 and the black matrix 160, and the second inorganic encapsulation layer 144 is disposed to cover the first organic encapsulation layer 143.

It can be understood that the first encapsulation layer 140 of the present application covers the light emitting units 120 and the eave structure, and the first encapsulation layer 140 isolates the color filter layer 170 from affecting the light emitting units 120. The isolation between the color filter 171 and the light emitting unit 120 may also be achieved in a manner that a plurality of inorganic encapsulation layers and organic encapsulation layers are stacked.

Embodiment two:

fig. 3 is a schematic view of a display panel according to a second embodiment of the present application, and referring to fig. 3, the present application discloses a display panel 100, wherein the display panel 100 further comprises a substrate 110, a light emitting unit 120, a pixel defining layer 130, a first metal layer 150, an insulating layer 151, a first encapsulation layer 140, a color filter layer 170, and a second encapsulation layer 142; the light emitting units 120 are respectively arranged corresponding to the opening areas 101, and the light emitting units 120 comprise a bottom electrode 121, a light emitting layer 122 and a top electrode 123 which are sequentially stacked along the direction away from the substrate 110; the pixel defining layer 130 is disposed corresponding to the non-opening area 102; the first metal layer 150 is disposed on the pixel defining layer 130 and corresponding to the non-opening region 102, and the top electrodes 123 of the adjacent light emitting units 120 are respectively connected to the first metal layer 150; the insulating layer 151 is disposed in the non-opening region 102 and covers the first metal layer 150; the first encapsulation layer 140 is disposed to cover the light emitting unit 120 and the insulating layer 151;

the color filter layer 170 includes a plurality of color filter portions 171 and a black matrix 160, the color filter portions 171 are located in the opening area 101 and disposed on the first encapsulation layer 140, and the black matrix 160 is disposed on the insulating layer 151 and located between two adjacent color filter portions 171; the second encapsulation layer 142 is disposed on the black matrix 160; and the second encapsulation layer 142 is disposed to cover the color filter layer 170.

On the basis of the first embodiment, the color filter layer 170 is disposed in the encapsulation layer, which is equivalent to that the color filter layer 170 is moved down, and the corresponding light emitting unit 120 emits the large-angle light, for example, the red light emitted by the red light emitting unit 120 after passing through the red filter portion, and the red light is filtered by the adjacent opening area 101 without the green filter portion or the blue filter portion after the color filter layer 170 is moved down. Therefore, the part of red light is emitted from the adjacent opening area 101, so that the phenomena of impure color, mixed color and the like of the adjacent sub-pixels occur.

The other film layer structures are basically the same as those of the first embodiment, except that the black matrix 160 is further disposed in the color filter layer 170, and the black matrix 160 is further disposed above the eave structure, so that the color mixing problem is prevented by the black matrix 160. In this embodiment, the first metal layer 150 may be selectively blacked out to form a light shielding effect, and the light shielding effect is achieved in cooperation with the black matrix 160.

Specifically, the surface of the black matrix 160 on the side away from the substrate 110 is not lower than the surface of the color filter 171 on the side away from the substrate 110.

In this embodiment, by providing the black matrix 160 on the eave structure, light with a large angle is blocked by the black matrix 160. Further, since the eave structure itself has a certain height, the black matrix 160 can be higher than the color filter 171 without being provided particularly high. After the black matrix 160 is disposed, as shown in fig. 3, most of the light with a large angle cannot be injected into the adjacent sub-pixels, and the problem of color mixing caused by the downward movement of the color filter layer 170 into the encapsulation layer is well solved by the black matrix 160.

Further, in the light emitting unit 120 of the present embodiment, the bottom electrode 121 is a metal electrode as an anode of the light emitting unit 120, and the top electrode 123 is a transparent conductive layer as a cathode of the light emitting unit 120. The cathodes of the light emitting units 120 in this embodiment are respectively connected to the sides of the first metal layer 150, and are connected through the first metal layer 150. Under the drive of a certain voltage, electrons and holes respectively move from the cathode and the anode to the light emitting layer 122 to be recombined and then emit visible light. However, when the light emitting unit 120 does not emit light, external ambient light enters the plane. Since the ambient light generally includes the entire visible light band or a wide spectrum band, the color filter 171 can filter out most of the ambient light, and only the light of the corresponding color is transmitted through the color filter 171, and the light of other bands can be absorbed by the color filter 171, for example, the red filter can only transmit red light, and after the red light enters the light emitting unit 120, the red light is reflected from the red filter or is emitted from other pixel positions due to the high reflectivity of the metal electrode, so that the glare or color deviation is caused.

In this embodiment, the black matrix 160 also has a problem of preventing reflection of ambient light at a large angle. Referring specifically to fig. 3, the ambient light with a large angle is incident from the outside, passes through the plurality of layers, and is reflected by the bottom electrode 121 to the black matrix 160. For example, the ambient light with a large angle is incident from the outside, passes through the plurality of film layers, is reflected by the bottom electrode 121 to the side surface of the first metal layer 150, and is reflected again to the black matrix 160 for absorption. For example, the ambient light with a large angle is incident from the outside, passes through the plurality of film layers, is reflected by the side surface of the first metal layer 150, and is absorbed by the black matrix 160. When the first metal layer 150 is a blackened metal layer, the first metal layer 150 and the black matrix 160 completely isolate the plurality of light emitting units 120 from each other, and the light emitting units 120 and the color filter 171 of the same opening area 101 are packaged independently.

In this embodiment, most of the reflected light rays with large angles can be absorbed, so that the problems of glare, color separation, etc. caused by strong external ambient light when the sub-pixels of the display panel 100 do not emit light are reduced.

Specifically, within the same non-opening region 102, the black matrix 160 includes a first light shielding portion 161 and a second light shielding portion 162, the second light shielding portion 162 being disposed on the first light shielding portion 161; a surface of the first light shielding portion 161 on a side away from the substrate 110 is flush with a surface of the color filter portion 171 on a side away from the substrate 110; the second light shielding portion 162 has a width larger than that of the first light shielding portion 161.

In this embodiment, by setting the width of the second light shielding portion 162, on the one hand, the control of the opening area is realized, and the occurrence of color mixing and the like is avoided. On the other hand, the second light shielding portion 162 also has a function of absorbing reflected light.

Specifically, the orthographic projection of the second light shielding portion 162 on the substrate 110 overlaps with the orthographic projection of the bottom electrode 121 on the substrate 110, and does not overlap with the orthographic projection of the light emitting layer 122 of the light emitting unit 120 on the substrate 110. In this embodiment, the orthographic projection of the second light shielding portion 162 on the substrate 110 is located in the orthographic projection range of the pixel defining layer 130 on the substrate 110.

Embodiment III:

fig. 4 is a schematic diagram of a display panel according to a third embodiment of the present application, and referring to fig. 4, in the first embodiment, a first color filter layer 172 is disposed on the first encapsulation layer 140 and the second encapsulation layer 142, and a second color filter layer 173 is disposed on the second encapsulation layer 142, wherein the first color filter layer 172 and the second color filter layer 173 are respectively provided with a color filter 171, and the color filter 171 of the first color filter layer 172 is consistent with the color filter 171 of the second color filter layer 173 in the same opening area 101. And the first color filter layer 172 and the second color filter layer 173 in the present embodiment are no longer provided with the black matrix 160.

In this scheme, by setting the dual-layer color filter layer 170, it is mainly solved that two adjacent red sub-pixel regions, when the region is bright one by one, the external ambient light enters through one red sub-pixel region, and is emitted from another red sub-pixel through the reflection of the bottom electrode 121, so that the condition of stealing light of the adjacent red sub-pixel is caused. In this embodiment, since the first color filter layer 172 is further disposed on the bottom electrode 121, the red light inputted in the red sub-pixel is completely absorbed by the green filter portion when passing through the first color filter layer 172, and does not enter the bottom electrode 121, so that the occurrence of such situations is greatly avoided, and the phenomena such as shinning, color separation, glare, etc. are avoided.

In this embodiment, the first color filter layer 172 is disposed in the encapsulation layer, the second color filter layer 173 is disposed on the encapsulation layer, and the first color filter layer 172 and the second color filter layer 173 are stacked to achieve the filtering effect. It can be appreciated that the first metal layer 150 may be blacked, or the insulating layer 151 may be blacked, or a first light shielding layer may be directly disposed above the first metal layer 150 to shield external ambient light, so as to avoid glare caused by reflection of the external ambient light after the external ambient light is incident into the first metal layer 150. Specifically, the thickness of the first color filter layer 172 is relatively thin, and the thickness of the Bao Yudi color filter layer 173 is relatively thin.

Embodiment four:

fig. 5 is a schematic diagram of a display device according to a fourth embodiment of the present application, and referring to fig. 5, the present application discloses a display device, wherein a display device 200 includes a driving circuit 210 and the display panel 100 according to any of the above embodiments, wherein the driving circuit 210 is used for driving the display panel 100 to display.

The application uses the eave structure formed by the first metal layer 150 and the insulating layer 151 as a space, the color filter layer 170 is arranged between two adjacent eave structures, and the color filter layer 170 is arranged in the packaging layer, namely between the first packaging layer 140 and the second packaging layer 142, and the color filter layer 170 is directly arranged on the substrate 110 on the premise of not influencing the packaging effect of the packaging layers, so that the thickness of the originally arranged color filter layer 170 is reduced. On the one hand, the color filter layer 170 and the light-emitting unit 120 are prevented from being inaccurately aligned by directly aligning the adjacent eave structures without additionally arranging grooves for accommodating, and the manufacturing accuracy of the color filter layer 170 can be improved. On the other hand, the first metal layer 150 or the insulating layer 151 is also blackened, whereby the blackened first metal layer 150 or the blackened insulating layer 151 is used to realize light shielding of the different color filter 171. The blackened first metal layer 150 or the blackened insulating layer 151 prevents color mixing between the color filter portions 171 of different colors, and blocks reflected light of a large angle, preventing phenomena such as glare.

It should be noted that, the inventive concept of the present application can form a very large number of embodiments, but the application documents are limited in space and cannot be listed one by one, so that on the premise of no conflict, the above-described embodiments or technical features can be arbitrarily combined to form new embodiments, and after the embodiments or technical features are combined, the original technical effects will be enhanced.

The above description of the application in connection with specific alternative embodiments is further detailed and it is not intended that the application be limited to the specific embodiments disclosed. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the application, and these should be considered to be within the scope of the application.

Claims (10)

1. A display panel comprising an open area and a non-open area, the display panel comprising:

a substrate;

the light-emitting units are respectively arranged corresponding to the opening areas and comprise a bottom electrode, a light-emitting layer and a top electrode which are sequentially stacked along the direction away from the substrate;

the pixel definition layer is arranged corresponding to the non-opening area;

the first metal layer is arranged on the pixel definition layer and corresponds to the non-opening area, and the top electrodes of the adjacent light emitting units are respectively connected with the first metal layer;

the insulating layer is arranged in the non-opening area and covers the first metal layer;

the first packaging layer is arranged to cover the light-emitting unit and the insulating layer;

the color filter layer comprises a plurality of color filter parts, and the color filter parts are positioned in the opening areas and are arranged on the first packaging layer; and

the second packaging layer is arranged to cover the color filter layer;

wherein, two adjacent color filter parts are separated by the first metal layer and the insulating layer; the first metal layer is formed by adopting a blackened metal material and/or the insulating layer is formed by adopting a black insulating material.

2. The display panel according to claim 1, wherein the color filter layer further comprises a black matrix disposed on the insulating layer and between adjacent two of the color filter portions; the second encapsulation layer is disposed on the black matrix.

3. The display panel of claim 2, wherein the first encapsulation layer comprises a first inorganic encapsulation layer and the second encapsulation layer comprises a first organic encapsulation layer and a second inorganic encapsulation layer;

the first inorganic packaging layer is arranged to cover the light emitting unit and the insulating layer; the first organic encapsulation layer covers the color filter portion and the black matrix arrangement, and the second inorganic encapsulation layer covers the first organic encapsulation layer arrangement.

4. The display panel according to claim 2, wherein a surface of the black matrix on a side away from the substrate is not lower than a surface of the color filter portion on a side away from the substrate.

5. The display panel according to claim 4, wherein the black matrix includes a first light shielding portion and a second light shielding portion in the same non-opening region, the second light shielding portion being provided on the first light shielding portion;

the surface of the first shading part, which is far away from the substrate, is flush with the surface of the color filter part, which is far away from the substrate;

the width of the second light shielding part is larger than that of the first light shielding part.

6. The display panel according to claim 5, wherein the orthographic projection of the second light shielding portion on the substrate overlaps with the orthographic projection of the bottom electrode on the substrate, and does not overlap with the orthographic projection of the light emitting layer of the light emitting unit on the substrate.

7. The display panel according to claim 1, wherein a surface of the color filter portion on a side away from the substrate is lower than a surface of the insulating layer on a side away from the substrate.

8. The display panel according to claim 1, wherein the insulating layer is formed of a black insulating material, and the orthographic projection of the insulating layer on the substrate is within a range of orthographic projection of the pixel defining layer on the substrate and does not overlap with orthographic projection of the bottom electrode of the light emitting unit on the substrate; the plurality of color filter parts include a plurality of red filter parts, a plurality of green filter parts, and a plurality of blue filter parts.

9. The display panel according to claim 8, wherein a sum of thicknesses of the first metal layer and the insulating layer is equal to or greater than a thickness of the color filter layer.

10. A display device comprising a drive circuit and the display panel of any one of claims 1-9, wherein the drive circuit is configured to drive the display panel to display.