Display panel and display device
By employing a COE structure and an insulating layer to isolate the touch electrode layer from the black matrix in the display panel, the problems of corrosion and short circuits in the touch metal layer are solved, the manufacturing process is simplified, light transmittance and color gamut are improved, the thickness is reduced, and the performance of the display panel is enhanced.
Patent Information
- Application Number
- CN202410961721.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2044-07-17
AI Technical Summary
In the prior art, the contact between the touch metal layer and the black matrix causes corrosion and short circuit problems, and the multi-layer structure increases the complexity of the manufacturing process and affects light transmittance.
In the display panel, a COE structure is used instead of a polarizer, and a color filter layer is set on the encapsulation layer as an insulating layer. The touch electrode layer is separated from the black matrix of the color filter layer by the first interlayer dielectric layer. The bridging electrode layer is electrically connected to the touch electrode layer through a via. The position of the insulating layer is adjusted to form a single dielectric layer, avoiding the increase of process and thickness.
It improves the corrosion and short-circuit problems of the touch electrode layer, simplifies the manufacturing process, reduces power consumption, increases light transmittance and color gamut, reduces thickness, and improves bending performance.
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Figure CN118946208B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display devices, in particular to a display panel and a display device. BACKGROUND
[0002] AMOLED (English full name: Active Matrix / Organic Light Emitting Diode, Chinese abbreviation: Active Matrix / Organic Light Emitting Diode panel) display screen has good picture quality and fast response, and through the cooperation of PLP (English full name: Pol-less, Chinese abbreviation: Pol-less) technology, the light emitting efficiency and brightness are improved. Based on the PLP technology, a touch sensor is evaporated on the organic light emitting diode (OLED) panel to reduce the difficulty of manufacturing the touch layer. However, in the prior art, a multi-film layer structure is usually provided to separate the touch metal layer from the BM (black matrix), so that the problem of corrosion and short circuit of the touch metal layer due to contact with the BM layer can be improved. However, the multi-film layer structure not only increases the process, but also affects the light transmittance. SUMMARY
[0003] The embodiments of the present application provide a display panel and a display device, which can improve the problem of corrosion and short circuit of the touch electrode layer due to contact with the black matrix without increasing the process and thickness of the display panel.
[0004] In a first aspect, the embodiments of the present application provide a display panel, comprising:
[0005] An array substrate, a plurality of light emitting units are arranged on the array substrate;
[0006] An encapsulation layer, the encapsulation layer is arranged on the array substrate and covers the plurality of light emitting units;
[0007] A first touch layer, the first touch layer is arranged on the encapsulation layer;
[0008] A color filter layer, the color filter layer is arranged on the first touch layer, the color filter layer comprises a plurality of color resistance blocks arranged in an array and a black matrix for spacing the plurality of color resistance blocks, each color resistance block corresponds to a position of a light emitting unit; and
[0009] A second touch layer, the second touch layer is arranged on the color filter layer and is electrically connected to the first touch layer through a via hole;
[0010] Among the first touch layer and the second touch layer, one of them is arranged as a touch electrode layer and is spaced from the color filter layer through a first interlayer dielectric layer, and the other is arranged as a bridge electrode layer.
[0011] In an embodiment, the first touch control layer is arranged as the touch electrode layer, and the second touch control layer is arranged as the bridge electrode layer.
[0012] The touch electrode layer includes a plurality of touch electrodes arranged above the encapsulation layer, the plurality of touch electrodes are arranged corresponding to positions of the black matrix, and part of the touch electrodes are electrically connected to the second touch control layer through the through holes.
[0013] The first interlayer dielectric layer is arranged above the encapsulation layer and covers the plurality of touch electrodes.
[0014] The color filter layer is arranged above the first interlayer dielectric layer.
[0015] In an embodiment, the first touch control layer is arranged as the bridge electrode layer, and the second touch control layer is arranged as the touch electrode layer.
[0016] The first interlayer dielectric layer is arranged above the color filter layer.
[0017] The touch electrode layer includes a plurality of touch electrodes arranged above the first interlayer dielectric layer, the plurality of touch electrodes are arranged corresponding to positions of the black matrix, and part of the touch electrodes are electrically connected to the first touch control layer through the through holes.
[0018] In an embodiment, the display panel further includes a second interlayer dielectric layer arranged between the encapsulation layer and the first touch control layer.
[0019] In an embodiment, a plurality of first openings are arranged on a side surface of the second interlayer dielectric layer away from the encapsulation layer, and the plurality of first openings are arranged corresponding to positions of the black matrix.
[0020] The first touch control layer includes a plurality of touch electrodes or a plurality of bridge electrodes, the plurality of touch electrodes or the plurality of bridge electrodes are arranged in the plurality of first openings respectively, and are electrically connected to the second touch control layer through the through holes.
[0021] In an embodiment, the first touch control layer includes a plurality of bridge electrodes, and the second touch control layer includes a plurality of touch electrodes.
[0022] The first interlayer dielectric layer is arranged above the color filter layer, a plurality of second openings are arranged on a side surface of the first interlayer dielectric layer away from the color filter layer, and the plurality of second openings are arranged corresponding to positions of the black matrix.
[0023] The plurality of bridge electrodes are arranged in the plurality of first openings respectively.
[0024] The plurality of touch electrodes are respectively arranged in the plurality of second openings, and part of the touch electrodes are electrically connected to the corresponding bridge electrodes through the through holes.
[0025] In an embodiment, a surface of each of the bridge electrodes does not exceed a periphery of the first opening.
[0026] In an embodiment, the display panel further comprises a planar layer, which is arranged above the color filter layer and covers the second touch layer.
[0027] In an embodiment, in the first touch layer and the second touch layer, one of them is arranged as a touch electrode layer, and the other is arranged as a bridge electrode layer.
[0028] The bridge electrode layer comprises a plurality of bridge electrodes, and the plurality of bridge electrodes are arranged corresponding to positions of the black matrix.
[0029] The touch electrode layer comprises a plurality of touch electrodes, and the plurality of touch electrodes are arranged corresponding to positions of the black matrix. The plurality of touch electrodes comprise a plurality of touch drive electrodes and a plurality of touch sensing electrodes arranged alternately, and two adjacent touch drive electrodes are electrically connected to the same bridge electrode through the through hole.
[0030] In a second aspect, the embodiments of the present application further provide a display device comprising the display panel.
[0031] Beneficial effects: the display panel provided by the present application has the following beneficial effects: the encapsulation layer is arranged above the array substrate, the color filter layer is arranged above the encapsulation layer, and the COE (CF on Encapsulation) structure is formed, so as to replace the polarizer, which is conducive to reducing the power consumption of the display panel, improving the color gamut, thinning the thickness, and improving the bending performance; meanwhile, the first touch layer is arranged on the encapsulation layer, and the second touch layer is arranged on the color filter layer, the color filter layer is used as an insulating layer between the first touch layer and the second touch layer, which can not only further reduce the thickness of the display panel, but also simplify the process of the display panel; and in the first touch layer and the second touch layer, one is arranged as a touch electrode layer, and the other is correspondingly arranged as a bridge electrode layer, and a first interlayer dielectric layer is arranged between the touch electrode layer and the color filter layer; that is, the touch electrode layer is separated from the black matrix of the color filter layer through the first interlayer dielectric layer, so as to improve the problem of corrosion and short circuit of the touch electrode layer due to contact with the black matrix; in addition, the first interlayer dielectric layer is arranged in a single layer by adjusting the arrangement position of the insulating layer in the prior art, which does not increase the process of the display panel and does not increase the thickness of the display panel, thereby improving the light transmittance. BRIEF DESCRIPTION OF DRAWINGS
[0032] The technical solutions and other beneficial effects of the present application will become apparent through the following detailed description of the specific embodiments of the present application in combination with the accompanying drawings.
[0033] Figure 1 The first film layer diagram of the display panel provided by the embodiments of the present application is shown in the following figure:
[0034] Figure 2 The second film layer diagram of the display panel provided by the embodiments of the present application is shown in the following figure:
[0035] Figure 3 The third film layer diagram of the display panel provided by the embodiments of the present application is shown in the following figure:
[0036] Figure 4 The fourth film layer diagram of the display panel provided by the embodiments of the present application is shown in the following figure:
[0037] Figure 5 The fifth film layer diagram of the display panel provided by the embodiments of the present application is shown in the following figure:
[0038] Figure 6 The planar arrangement diagram of the first touch layer and the second touch layer provided by the embodiments of the present application is shown in the following figure:
[0039] Figure 7 The schematic diagram of the bridge electrode provided by the embodiments of the present application is shown in the following figure. DETAILED DESCRIPTION
[0040] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.
[0041] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and cannot be understood as a limitation on the present application. In addition, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature relative to the second feature only means that the first feature is higher in height than the second feature or the first feature is lower in height than the second feature, and does not mean a direct connection relationship.
[0042] In addition, the terms "first" and "second" are only for the purpose of description, and the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.
[0043] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, and the connection mode is not limited, and for a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0044] The following disclosure provides many different embodiments for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application provides various specific examples of processes and materials, but a person of ordinary skill in the art can realize the application of other processes and / or the use of other materials.
[0045] Embodiments of the present application provide a display panel and a display device. The present application does not limit the specific form of the display device, which can be an OLED display device. The display device provided by the embodiments of the present application can be applied to electronic equipment, which can be a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, a vehicle-mounted display, and can also be a wearable device or any product or component with a display function, such as a smart watch, a smart bracelet, smart glasses, smart earphones, smart clothing, a head-mounted display, and the like.
[0046] In a first aspect, embodiments of the present application provide a display panel 100. Please refer to Figures 1 to 5 The display panel 100 includes an array substrate 1, an encapsulation layer 2, a first touch layer 3, a color filter layer 4, and a second touch layer 5. The array substrate 1 is provided with a plurality of light emitting units 11. The encapsulation layer 2 is disposed on the array substrate 1 and covers the plurality of light emitting units 11. The first touch layer 3 is disposed on the encapsulation layer 2. The color filter layer 4 is disposed on the first touch layer 3 and includes a plurality of color resistance blocks 41 arranged in an array and a black matrix 42 for spacing the plurality of color resistance blocks 41. Each color resistance block 41 corresponds to a position of one light emitting unit 11. The second touch layer 5 is disposed on the color filter layer 4 and is electrically connected to the first touch layer 3 through a via hole 6. In the first touch layer 3 and the second touch layer 5, one is set as a touch electrode layer a and is spaced from the color filter layer 4 by a first interlayer dielectric layer 7, and the other is set as a bridge electrode layer b.
[0047] The display panel 100 provided in the present application is provided with an encapsulation layer 2 above the array substrate 1, and a color filter layer 4 is provided above the encapsulation layer 2 to form a COE (CF on Encapsulation) structure, thereby replacing a polarizer, which is conducive to reducing power consumption, improving color gamut, reducing thickness, and improving bending performance of the display panel 100. Meanwhile, a first touch layer 3 is provided on the encapsulation layer 2, and a second touch layer 5 is provided on the color filter layer 4, and the color filter layer 4 is used as an insulating layer between the first touch layer 3 and the second touch layer 5, which not only can further reduce the thickness of the display panel 100, but also can simplify the process of the display panel 100. Furthermore, one of the first touch layer 3 and the second touch layer 5 is provided as a touch electrode layer a, and the other is provided as a bridge electrode layer b, and a first interlayer dielectric layer 7 is provided between the touch electrode layer a and the color filter layer 4. That is, the touch electrode layer a is separated from the black matrix 42 of the color filter layer 4 by the first interlayer dielectric layer 7, which can improve the problem of corrosion and short circuit of the touch electrode layer a due to contact with the black matrix 42. Furthermore, the first interlayer dielectric layer 7 is formed by adjusting the setting position of the insulating layer in the prior art, which does not increase the process of the display panel 100 and does not increase the thickness of the display panel 100, thereby being conducive to improving light transmittance.
[0048] The present application does not make specific limitations to the structure of the first touch layer 3 and the second touch layer 5. In some embodiments, the first touch layer 3 is provided as a touch electrode layer a, and correspondingly, the second touch layer 5 is provided as a bridge electrode layer b. In another embodiment, the first touch layer 3 is provided as a bridge electrode layer b, and correspondingly, the second touch layer 5 is provided as a touch electrode layer a.
[0049] Furthermore, please refer to Figure 6 In an embodiment, the first touch layer 3 is provided as a touch electrode layer a, and the second touch layer 5 is provided as a bridge electrode layer b. The first touch layer 3 is provided in a metal mesh structure, which includes a plurality of polygonal metal frames provided corresponding to a plurality of light emitting units 11, and the shape of the polygonal metal frame can be the same as the shape of the light emitting unit 11. The orthographic projection of the plurality of color resist blocks 41 on the array substrate 1 is located in the orthographic projection of the plurality of irregular polygonal metal frames. Specifically, the touch driving electrode a11 and the touch sensing electrode a12 of the first touch layer 3 can be rhombuses formed by metal mesh lines. The material of the touch driving electrode a11 and the touch sensing electrode a12 can be gold, silver, copper, lithium, sodium, potassium, magnesium, aluminum, zinc, and alloys thereof.
[0050] Further referring to Figure 6 , the bridge electrode layer b comprises a plurality of bridge electrodes b1, the plurality of bridge electrodes b1 are arranged corresponding to positions of the black matrix 42; the touch electrode layer a comprises a plurality of touch electrodes a1, the plurality of touch electrodes a1 are arranged corresponding to positions of the black matrix 42, the plurality of touch electrodes a1 comprises a plurality of touch driving electrodes a11 and a plurality of touch sensing electrodes a12, the plurality of touch driving electrodes a11 comprises a plurality of driving electrode groups arranged in a first direction F1, each of the driving electrode groups comprises a plurality of the touch driving electrodes a11 arranged in a second direction F2; the plurality of touch sensing electrodes a12 comprises a plurality of sensing electrode groups arranged in the first direction F1, each of the sensing electrode groups comprises a plurality of the touch sensing electrodes a12 arranged in the second direction F2; and the plurality of driving electrode groups and the plurality of sensing electrode groups are arranged alternately in the first direction F1. Adjacent one of the touch driving electrodes a11 and one of the touch sensing electrodes a12 jointly form a matrix projection capacitor. It is to be noted that the first direction F1 and the second direction F2 are arranged in a cross manner. Adjacent two of the touch sensing electrodes a12 are directly electrically connected; adjacent two of the touch driving electrodes a11 are electrically connected through the bridge electrode b1.
[0051] Please refer to Figure 7 , the bridge electrode b1 can be a rhombus formed by a metal grid line b11, and has the same shape as the touch driving electrode a11, the bridge electrode b1 is located between adjacent two of the touch driving electrodes a11.
[0052] Based on the above embodiment, the first touch layer 3 is arranged as the touch electrode layer a, and the second touch layer 5 is arranged as the bridge electrode layer b. Since the area of each of the bridge electrodes b1 in the bridge electrode layer b is small, when the second touch layer 5 is arranged as the bridge electrode layer b, the area of the second touch layer 5 located above the black matrix 42 is small, which not only reduces the reflection area of the second touch layer 5 when ambient light is incident into the display panel 100, thereby reducing the reflectivity of the display panel 100 and further improving the display effect of the display panel 100, but also the small area of the bridge electrode b1 directly contacts the black matrix 42, and the problem of corrosion and short circuit does not occur.
[0053] Please refer to Figure 1In the first embodiment of the present application, the first touch layer 3 is arranged as the touch electrode layer a, and the second touch layer 5 is arranged as the bridge electrode layer b. The touch electrode layer a includes a plurality of touch electrodes a1 arranged on the encapsulation layer 2, and the plurality of touch electrodes a1 are arranged corresponding to the positions of the black matrix 42. Some of the touch electrodes a1 are electrically connected to the second touch layer 5 through the via hole 6. The first interlayer dielectric layer 7 is arranged on the encapsulation layer 2 and covers the plurality of touch electrodes a1. The color filter layer 4 is arranged on the first interlayer dielectric layer 7.
[0054] In the present embodiment, the touch electrode layer a is arranged on the encapsulation layer 2. The first interlayer dielectric layer 7 is arranged on the encapsulation layer 2 and covers the touch electrode layer a. The color filter layer 4 is arranged on the first interlayer dielectric layer 7. The bridge electrode layer b is arranged on the color filter layer 4.
[0055] Please refer to Figure 2 In the second embodiment of the present application, the first touch layer 3 is arranged as the bridge electrode layer b, and the second touch layer 5 is arranged as the touch electrode layer a. The first interlayer dielectric layer 7 is arranged on the color filter layer 4. The touch electrode layer a includes a plurality of touch electrodes a1 arranged on the first interlayer dielectric layer 7, and the plurality of touch electrodes a1 are arranged corresponding to the positions of the black matrix 42. Some of the touch electrodes a1 are electrically connected to the first touch layer 3 through the via hole 6.
[0056] In the present embodiment, the bridge electrode layer b is arranged on the encapsulation layer 2. The color filter layer 4 is arranged on the bridge electrode layer b. The first interlayer dielectric layer 7 is arranged on the color filter layer 4. The touch electrode layer a is arranged on the first interlayer dielectric layer 7.
[0057] As described in the above embodiment, the first touch layer 3 is arranged on the encapsulation layer 2. In some embodiments of the present application, in order to avoid damaging the encapsulation layer 2, the display panel 100 further includes a second interlayer dielectric layer 8 arranged between the encapsulation layer 2 and the first touch layer 3. By arranging the second interlayer dielectric layer 8 on the encapsulation layer 2, the encapsulation layer 2 can be protected from being damaged when the first touch layer 3 is manufactured.
[0058] Please refer to Figure 3In the third embodiment of the present application, the second interlayer dielectric layer 8 is arranged above the encapsulation layer 2, a plurality of first openings 81 are arranged on the side surface of the second interlayer dielectric layer 8 away from the encapsulation layer 2, and the first openings 81 are between two adjacent light emitting units 11; the touch electrode layer a is arranged above the second interlayer dielectric layer 8, the touch electrode layer a includes a plurality of touch electrodes a1, and each touch electrode a1 is arranged in a corresponding first opening 81; the first interlayer dielectric layer 7 is arranged above the second interlayer dielectric layer 8 and covers the plurality of touch electrodes a1; the color filter layer 4 is arranged above the first interlayer dielectric layer 7, the color block 41 of the color filter layer 4 corresponds to the position of the light emitting unit 11, and the black matrix 42 of the color filter layer 4 separates the plurality of color blocks 41; that is, the first opening 81 corresponds to the position of the black matrix 42; the bridge electrode layer b is arranged above the color filter layer 4, the bridge electrode layer b includes a plurality of bridge electrodes b1, and the plurality of bridge electrodes b1 are arranged at positions corresponding to the black matrix 42; and part of the touch electrodes a1 are electrically connected to the corresponding bridge electrodes b1 through the through holes 6.
[0059] In the third embodiment of the present application, the structure is different from that of the first embodiment in that the first openings 81 are arranged on the second interlayer dielectric layer 8; by arranging the first openings 81 and arranging the touch electrodes a1 in the first openings 81, the thickness of the display panel 100 can be further reduced.
[0060] Please refer to Figure 4 In the fourth embodiment of the present application, the second interlayer dielectric layer 8 is arranged above the encapsulation layer 2, a plurality of first openings 81 are arranged on the side surface of the second interlayer dielectric layer 8 away from the encapsulation layer 2, and the first openings 81 are between two adjacent light emitting units 11; the bridge electrode layer b is arranged above the second interlayer dielectric layer 8, the bridge electrode layer b includes a plurality of bridge electrodes b1, and each bridge electrode b1 is arranged in a corresponding first opening 81; the color filter layer 4 is arranged above the bridge electrode layer b, the color block 41 of the color filter layer 4 corresponds to the position of the light emitting unit 11, and the black matrix 42 of the color filter layer 4 separates the plurality of color blocks 41; that is, the bridge electrode b1 corresponds to the position of the black matrix 42; the first interlayer dielectric layer 7 is arranged above the color filter layer 4, and the touch electrode layer a is arranged above the first interlayer dielectric layer 7, the touch electrode layer a includes a plurality of touch electrodes a1, and the plurality of touch electrodes a1 are arranged at positions corresponding to the black matrix 42; and part of the touch electrodes a1 are electrically connected to the corresponding bridge electrodes b1 through the through holes 6.
[0061] In the fourth embodiment of the present application, the difference from the structure of the second embodiment is that the first opening 81 is arranged on the second interlayer dielectric layer 8; by arranging the first opening 81 and arranging the bridge electrode b1 in the first opening 81, the thickness of the display panel 100 can be further reduced.
[0062] Please refer to Figure 5 In the fifth embodiment of the present application, the first interlayer dielectric layer 7 is provided with a plurality of second openings 71 on the side surface away from the color filter layer 4, and the plurality of second openings 71 are arranged corresponding to the positions of the black matrix 42; the plurality of touch electrodes a1 are arranged in the plurality of second openings 71 respectively, and part of the touch electrodes a1 are electrically connected with the corresponding bridge electrodes b1 through the through holes 6.
[0063] In the fifth embodiment of the present application, the difference from the structure of the fourth embodiment is that the second opening 71 is also arranged on the first interlayer dielectric layer 7; by arranging the first opening 81 and the second opening 71 at the same time, and arranging the bridge electrode b1 in the first opening 81 and arranging the touch electrode a1 in the second opening 71, the thickness of the display panel 100 can be further reduced.
[0064] Based on the above embodiments, the bridge electrode layer b is arranged on the second interlayer dielectric layer 8, the bridge electrode layer b includes a plurality of bridge electrodes b1, each bridge electrode b1 is arranged in a first opening 81 corresponding; the color filter layer 4 is directly arranged on the bridge electrode layer b; by arranging the surface of each bridge electrode b1 not exceeding the circumference of the first opening 81, the flatness of the side surface of the second interlayer dielectric layer 8 away from the encapsulation layer 2 can be ensured, so that the manufacturing of the color filter layer 4 is more convenient.
[0065] In the present application, the display panel 100 further includes a flat layer 9, the flat layer 9 is arranged on the color filter layer 4 and covers the second touch layer 5. By arranging the flat layer 9, on the one hand, the second touch layer 5 can be protected, on the other hand, the side surface of the second touch layer 5 away from the color filter layer 4 can be flattened, which is convenient for manufacturing subsequent film layers.
[0066] In a second aspect, the embodiments of the present application further provide a display device. The display device comprises the display panel 100. It should be noted that the display panel 100 is arranged as the display panel 100 described above, that is, the display panel 100 comprises all the technical features of the display panel 100 described above, and the display device comprises all the embodiments of the display panel 100 described above, and thus has all the technical effects of the embodiments described above, which will not be described here.
[0067] The display panel and the display device provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the technical solutions of the present application and the core ideas thereof; those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced by equivalents; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A display panel, characterized in that: include: an array substrate, wherein a plurality of light-emitting units are provided on the array substrate; an encapsulation layer, the encapsulation layer being disposed on the array substrate and covering the plurality of light-emitting units; a first touch layer, the first touch layer being disposed on the encapsulation layer; a color filter layer, the color filter layer being disposed on the first touch layer, the color filter layer comprising a plurality of color resist blocks arranged in an array, and a black matrix for separating the plurality of color resist blocks, each of the color resist blocks corresponding to a position of the light-emitting unit; and a second touch layer, the second touch layer being disposed on the color filter layer and electrically connected to the first touch layer through a through hole, wherein one of the first touch layer and the second touch layer is configured as a touch electrode layer and is separated from the color filter layer by a first interlayer dielectric layer, and the other correspondingly configured as a bridging electrode layer; a second interlayer dielectric layer, the second interlayer dielectric layer being disposed between the encapsulation layer and the first touch layer, the second interlayer dielectric layer being provided with a plurality of first openings on a surface of the second interlayer dielectric layer away from the encapsulation layer, the plurality of first openings being disposed corresponding to positions of the black matrix; The first touch layer includes a plurality of touch electrodes or a plurality of bridging electrodes, and the plurality of touch electrodes or the plurality of bridging electrodes are respectively disposed in the plurality of first openings and are electrically connected to the second touch layer through the through holes.
2. The display panel according to claim 1, wherein The first touch layer is configured as the touch electrode layer, and the second touch layer is configured as the bridging electrode layer; The touch electrode layer includes a plurality of touch electrodes disposed on the packaging layer, the plurality of touch electrodes are disposed corresponding to positions of the black matrix, and some of the touch electrodes are electrically connected to the second touch layer through the through holes; Wherein, the first interlayer dielectric layer is provided on the packaging layer and covers the plurality of touch electrodes; The color filter layer is disposed on the first interlayer dielectric layer.
3. The display panel according to claim 1, wherein The first touch layer is configured as the bridging electrode layer, and the second touch layer is configured as the touch electrode layer; The first interlayer dielectric layer is disposed on the color filter layer; The touch electrode layer includes a plurality of touch electrodes disposed on the first interlayer dielectric layer. The plurality of touch electrodes are disposed corresponding to positions of the black matrix. Some of the touch electrodes are electrically connected to the first touch layer through the through holes.
4. The display panel according to claim 1, wherein: The first touch layer includes a plurality of bridging electrodes, and the second touch layer includes a plurality of touch electrodes; The first interlayer dielectric layer is disposed on the color filter layer. A plurality of second openings are formed on a surface of the first interlayer dielectric layer away from the color filter layer. The plurality of second openings are disposed corresponding to positions of the black matrix. Wherein, the plurality of bridging electrodes are respectively disposed in the plurality of first openings; The touch electrodes are correspondingly disposed in the second openings, and some of the touch electrodes are electrically connected to the corresponding bridge electrodes through the through holes.
5. The display panel according to claim 4, wherein: A surface of each of the bridge electrodes does not exceed a periphery of the first opening.
6. The display panel according to claim 1, wherein: The display panel further includes a planar layer, which is disposed on the color filter layer and covers the second touch layer.
7. The display panel according to claim 1, wherein: Among the first touch layer and the second touch layer, one is configured as a touch electrode layer, and the other is correspondingly configured as a bridging electrode layer; The bridging electrode layer includes a plurality of bridging electrodes, and the plurality of bridging electrodes are arranged corresponding to positions of the black matrix; The touch electrode layer includes a plurality of touch electrodes, and the plurality of touch electrodes are arranged corresponding to the positions of the black matrix. The plurality of touch electrodes include a plurality of touch drive electrodes and a plurality of touch sensing electrodes that are alternately arranged. Two adjacent touch drive electrodes are electrically connected to the same bridging electrode through the through hole.
8. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 7.
Citation Information
Patent Citations
Display panel and display device
US20220075469A1