CN114924661A - Touch display panel and display device - Google Patents

Touch display panel and display device Download PDF

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Publication number
CN114924661A
CN114924661A CN202210423793.2A CN202210423793A CN114924661A CN 114924661 A CN114924661 A CN 114924661A CN 202210423793 A CN202210423793 A CN 202210423793A CN 114924661 A CN114924661 A CN 114924661A
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CN
China
Prior art keywords
sub
pixels
display panel
touch display
touch
Prior art date
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Pending
Application number
CN202210423793.2A
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Chinese (zh)
Inventor
余生荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to CN202210423793.2A priority Critical patent/CN114924661A/en
Publication of CN114924661A publication Critical patent/CN114924661A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention provides a touch display panel and a display device, wherein the touch display panel comprises: the touch screen comprises an array substrate, a plurality of sub-pixels positioned on the array substrate and a touch layer, wherein the touch layer comprises a plurality of grid units which are mutually connected, and the grid units surround two or more adjacent sub-pixels. According to the invention, the obtained metal wiring of the touch layer is sparse, the opening position and the opening area of the light hole in the fingerprint identification area of the touch display panel are effectively increased, the optical fingerprint transmittance of the touch display panel is further improved, and the touch performance of the prepared touch display panel is improved.

Description

Touch display panel and display device
Technical Field
The invention relates to the technical field of display, in particular to a touch display panel and a display device.
Background
With the continuous development of the display field, technologies such as display, touch control, and ToF (Time of flight) are integrated in the same panel, and the application of the integrated panel to vehicle-mounted, mobile phone, tablet, computer, and television products is more and more extensive.
Touch (Touch) technology plays a very important role as a display auxiliary technology, especially a capacitive Touch panel. With the progress of technology, touch control and display are combined more and more closely, and external embedded and embedded technologies are developed and advocated by various large display panel factories, and become mainstream. Fig. 1A and 1B are schematic structural diagrams of a conventional touch display panel, in the prior art, a metal mesh layer 10 of a touch layer uses a single sub-pixel as a repeating unit, and is distributed around the single sub-pixel in a whole display area 20, the sub-pixel located at one side of a fingerprint identification area 30 is inevitably surrounded by metal traces of the metal mesh layer 10, so that the position of a light hole 40 of the fingerprint identification area and the opening area thereof are severely limited, and thus the optical fingerprint transmittance of the touch display panel is low, and the touch effect is poor.
Disclosure of Invention
The embodiment of the invention provides a touch display panel and a display device, which are used for solving the technical problems that in the touch display panel, the optical fingerprint transmittance of the touch display panel is low and the touch effect is poor due to the fact that metal routing lines of a metal grid layer are too dense.
The invention provides a touch display panel, comprising: the touch screen comprises an array substrate, a plurality of sub-pixels positioned on the array substrate and a touch layer, wherein the touch layer comprises a plurality of grid units which are mutually connected, and the grid units surround two or more adjacent sub-pixels.
In some embodiments of the present invention, the plurality of sub-pixels include a plurality of red sub-pixels, a plurality of green sub-pixels, and a plurality of blue sub-pixels arranged in an array, where a plurality of rows of the red sub-pixels and a plurality of rows of the blue sub-pixels are alternately arranged in a column direction, each of the green sub-pixels is located in a virtual closed pattern formed by two adjacent red sub-pixels and two adjacent blue sub-pixels, and an area of the green sub-pixel is smaller than an area of the red sub-pixel and an area of the blue sub-pixel.
In some embodiments of the present invention, a plurality of the grid cells are arranged along a diagonal direction of the virtual closed figure.
In some embodiments of the present invention, a plurality of the grid cells surround adjacent one of the red sub-pixels and one of the green sub-pixels, and adjacent one of the blue sub-pixels and one of the green sub-pixels, respectively.
In some embodiments of the present invention, at least one of the grid cells includes a first cell and a second cell, the first cell and the second cell are arranged along a first diagonal direction of the virtual closed figure, the first cell and the second cell are connected to each other in a second diagonal direction of the virtual closed figure, and the first diagonal direction and the second diagonal direction are arranged to intersect.
In some embodiments of the present invention, at least one of the grid cells surrounds adjacent one of the red sub-pixels, one of the blue sub-pixels, and two of the green sub-pixels.
In some embodiments of the present invention, the touch display panel further includes a plurality of fingerprint sensors, the touch display panel includes a fingerprint identification area, and a plurality of light holes are disposed in a boundary of at least one grid unit located in the fingerprint identification area, the boundary corresponding to the fingerprint sensors.
In some embodiments of the present invention, a plurality of the light-transmissive holes are disposed around the green sub-pixel within the boundary of at least one of the grid cells.
In some embodiments of the present invention, the array substrate further includes a light emitting layer on the array substrate and an encapsulation layer on the light emitting layer, the plurality of sub-pixels include a plurality of light emitting units of the light emitting layer, and the fingerprint sensor is disposed in the encapsulation layer.
The invention provides a display device comprising any one of the touch display panels.
In the touch display panel and the display device provided by the embodiment of the invention, the touch layer comprises a plurality of grid units which are mutually connected, each grid unit is internally provided with two or more sub-pixels, and compared with the technical scheme that the grid unit in the existing touch layer is only provided with a single sub-pixel, the metal routing of the touch layer obtained by the invention is sparser, the opening position and the opening area of the light hole in the fingerprint identification area of the touch display panel are effectively increased, the optical fingerprint transmittance of the touch display panel is further improved, and the touch performance of the prepared touch display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1A to 1B are schematic structural diagrams of a touch display panel of the prior art according to the background of the invention;
fig. 2 is a schematic cross-sectional view of a touch display panel according to an embodiment of the invention;
fig. 3 is a schematic diagram illustrating an array arrangement of sub-pixels of a touch display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a metal mesh layer in a touch layer according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of a metal mesh layer in a touch layer according to an embodiment of the invention;
fig. 6 is another schematic cross-sectional view of a touch display panel according to an embodiment of the disclosure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, and are not intended to limit the present invention. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, particularly in the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
Specifically, as shown in fig. 2, fig. 2 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention, and the present invention provides a touch display panel, including: the liquid crystal display panel comprises an array substrate 100, a plurality of sub-pixels 200 positioned on the array substrate, and a touch layer 300, wherein the touch layer 300 comprises a plurality of grid units 310 connected with each other, and the grid units 310 surround two or more adjacent sub-pixels 200.
In the prior art, as shown in fig. 1A, the metal wire of the metal grid layer of the touch display panel uses a single sub-pixel (for example, a single red sub-pixel, a single blue sub-pixel, or a single green sub-pixel) as a repeating unit, and there is only one single sub-pixel in the grid of the interconnected grid units, so that the metal wire of the metal grid layer of the touch display panel is too dense, the positions reserved for the light holes and the open area of the light holes are severely limited, and further the optical fingerprint transmittance of the touch display panel is low and the touch effect is poor.
Compared with the prior art in which the metal wires of the metal grid layer use a single sub-pixel as a repeating unit, in the invention, the metal wires in the touch layer 300 do not use the single sub-pixel 200 as the repeating unit, but use two or more adjacent sub-pixels 200 as the repeating unit, and two or more sub-pixels 200 are arranged in each grid unit 310, so that the obtained metal wires of the touch layer 300 are sparse, the positions of the openable light holes are increased, and meanwhile, the opening area of the light holes is increased, thereby effectively improving the optical fingerprint transmittance, and obviously improving the touch performance of the prepared touch display panel.
Further, referring to fig. 3, in the present invention, the plurality of sub-pixels 200 include a plurality of red sub-pixels 200a, a plurality of green sub-pixels 200b, and a plurality of blue sub-pixels 200c arranged in an array, the plurality of rows of red sub-pixels 200a and the plurality of rows of blue sub-pixels 200c are alternately arranged in a column direction, each green sub-pixel 200b is located in a virtual closed pattern formed by two adjacent red sub-pixels 200a and two adjacent blue sub-pixels 200c, and an area of the green sub-pixel 200b is smaller than an area of the red sub-pixel 200a and an area of the blue sub-pixel 200 c.
It should be noted that the arrangement of the sub-pixels 200 is not limited to the above-mentioned array arrangement, and the design of the areas of the sub-pixels 200 is also not limited to the above-mentioned arrangement, wherein the areas of the red sub-pixel 200a, the green sub-pixel 200b and the blue sub-pixel 200c may be the same or different, for example, the areas of the red sub-pixel 200a, the green sub-pixel 200b and the blue sub-pixel 200c may be set to be the same or the red sub-pixel 200a may be set to be the largest, the blue sub-pixel 200c may be set to be the next to the red sub-pixel 200b, the green sub-pixel 200b may be the smallest, or the red sub-pixel 200a may be designed to be smaller than the areas of the green sub-pixel 200b and the blue sub-pixel 200c, the particular embodiments of the invention shown are to be considered as preferred.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a metal mesh layer of a touch layer according to an embodiment of the present invention, as shown in the figure, a plurality of the mesh units 310 are disposed along a diagonal direction of the virtual closed figure, wherein the plurality of the mesh units 310 respectively surround one of the red sub-pixels 200a and one of the green sub-pixels 200b adjacent to each other, and surround one of the blue sub-pixels 200c and one of the green sub-pixels 200b adjacent to each other.
In the present invention, the virtual closed graph is shown by a dotted line in fig. 4, where it is obvious that no metal mesh is distributed at a position adjacent to the red subpixel 200a and the green subpixel 200b in the same grid unit 310, and no metal mesh is distributed at a position adjacent to the blue subpixel 200c and the green subpixel 200b in the same grid unit 310, and the positions where the metal meshes are not distributed may be provided with the light holes, so that the opening positions and the opening areas of the light holes in the fingerprint identification area of the touch display panel are effectively improved, thereby improving the touch performance of the touch display panel.
Further, as shown in fig. 5, fig. 5 is another schematic structural diagram of a metal mesh layer in a touch layer according to an embodiment of the present invention, and as shown in the drawing, in the present invention, at least one of the mesh units 310 includes a first unit 310a and a second unit 310b, where the first unit 310a and the second unit 310b are disposed along a first diagonal direction of the virtual closed graph, the first unit 310a and the second unit 310b are connected to each other in a second diagonal direction of the virtual closed graph, and the first diagonal direction and the second diagonal direction are disposed in a crossing manner. At least one grid unit 310 surrounds one red sub-pixel 200a, one blue sub-pixel 200c and two green sub-pixels 200 b.
In the present invention, the first unit 310a includes the green sub-pixel 200b and the blue sub-pixel 200c, the second unit 310b includes the red sub-pixel 200a and the green sub-pixel 200b, no metal trace is disposed at the interconnection between the first unit 310a and the second unit 310b, the position of the green sub-pixel 200b adjacent to the blue sub-pixel 200c in the first unit 310a, and the position of the red sub-pixel 200a adjacent to the green sub-pixel 200b in the second unit 310b, so as to reserve sufficient positions for disposing the light holes, and compared with the light hole disposing scheme (see fig. 1A) in the prior art, the opening position and the opening area of the light hole in the fingerprint identification area of the touch display panel are effectively increased, the touch effect of the prepared touch display panel is further improved.
Further, as shown in fig. 2 and 5, in the present invention, the touch display panel further includes a plurality of fingerprint sensors 400, the touch display panel includes a fingerprint identification area 500, and a plurality of light holes are disposed in a boundary of at least one grid unit 310 in the fingerprint identification area 500, corresponding to the fingerprint sensors 400.
The fingerprint sensor 400 of the present invention is an optical fingerprint sensor, which mainly uses the principle of refraction and reflection of light, and can collect fingerprints because the angles of refraction of light on uneven lines of fingerprints on the surface of the finger and the brightness of reflected light are different.
In the present invention, the touch display panel includes the fingerprint identification area 500 and a non-fingerprint identification area, the non-fingerprint identification area is an area of the touch display panel except the fingerprint identification area 500, the fingerprint identification area 500 is disposed corresponding to the fingerprint sensor 400, the fingerprint identification area 500 includes at least one grid unit 310, the grid unit 310 is provided with the light holes for touch sensing (in fig. 4 and 5, the light holes are represented by a plurality of white circles), and effective collection of fingerprints can be completed through the light holes.
It should be noted that, in the present invention, the metal mesh layers shown in the embodiment are all formed by mutually connecting the same mesh units, but the design of the metal mesh layers is not limited to such a regular structure, for example, on the basis of the foregoing embodiment, the metal routing of the metal mesh layers may be adjusted according to the difference between the metal mesh layers located in the fingerprint identification area 500 and the non-fingerprint identification area, for example, the metal routing in the fingerprint identification area 500 may be sparsely distributed, sufficient positions are reserved for the arrangement of the light transmitting holes, and meanwhile, the metal routing in the non-fingerprint identification area is densely distributed, so that the touch performance of the touch display panel is effectively improved on the premise of ensuring that other performances of the manufactured touch display panel are not affected.
Specifically, in the present invention, the design scheme shown in fig. 4 may be adopted in the fingerprint identification area 500, that is, in the fingerprint identification area 500, a plurality of grid units 310 are arranged along a diagonal direction of the virtual closed figure, wherein the plurality of grid units 310 respectively surround one adjacent red sub-pixel 200a and one adjacent green sub-pixel 200b, and one adjacent blue sub-pixel 200c and one adjacent green sub-pixel 200b, while in the non-fingerprint identification area, a single sub-pixel 200 is used as a repeating unit, and a plurality of grid units 310 are arranged around the single sub-pixel 200.
In particular, in the present invention, the design scheme as shown in fig. 5 can also be adopted in the fingerprint identification area 500, i.e., within the fingerprint identification area 500, the grid cell 310 includes a first cell 310a and a second cell 310b, the first cell 310a and the second cell 310b are arranged along a first diagonal direction of the virtual closed figure, the first cell 310a and the second cell 310b are connected to each other in a second diagonal direction of the virtual closed figure, the first diagonal direction and the second diagonal direction being arranged to intersect, wherein the grid unit 310 surrounds one of the red sub-pixels 200a, one of the blue sub-pixels 200c and two of the green sub-pixels 200b, and a plurality of grid units 310 are arranged around a single sub-pixel 200 in the non-fingerprint identification area by taking the single sub-pixel 200 as a repeating unit.
Alternatively, in the present invention, a plurality of the light-transmitting holes are disposed around the green sub-pixel 200b within the boundary of at least one of the grid cells 310.
In the present invention, the area of the green sub-pixel 200b is smaller than the area of the red sub-pixel 200a and the area of the blue sub-pixel 200c, so that a relatively sufficient position is left around the green sub-pixel 200b, and by disposing the light holes around the green sub-pixel 200b in the grid unit 310, more light holes can be obtained compared to a scheme in which the light holes are disposed around the red sub-pixel 200a or the blue sub-pixel 200c, so as to effectively improve the density of the light holes, and improve the touch performance of the touch display panel.
Further, as shown in fig. 6, in the present invention, the array substrate 100 further includes a light emitting layer 600 on the array substrate 100 and an encapsulation layer 700 on the light emitting layer 600, the plurality of sub-pixels 200 include a plurality of light emitting units of the light emitting layer 600, and the fingerprint sensor 400 is disposed in the encapsulation layer 700.
In the prior art, a fingerprint sensor is generally integrated in an array substrate, and due to the existence of a circuit in the array substrate, the transmission of light is affected, so that the amount of light transmitted to the fingerprint sensor is interfered, in the present invention, the fingerprint sensor 400 is disposed in the encapsulation layer 700, so that the light received by the fingerprint sensor 400 is not interfered by the circuit in the array substrate 100, and the light emitted from the light emitting layer 600 passes through the encapsulation layer 700 and the cover glass 800 after being reflected by a finger, and reaches the fingerprint sensor 400 through the light transmitting hole, so that the absorption amount of the light by the fingerprint sensor 400 is effectively increased, and further, the touch performance of the touch display panel is improved.
Further, in the present invention, a cover glass 800 is further disposed on a side of the touch layer 300 away from the encapsulation layer 700.
In the present invention, the shape of the light hole is not limited, and the light hole may be circular or polygonal, and meanwhile, the area of the light hole is affected by the array arrangement of the sub-pixels 200 and the area of the sub-pixels, and the area of the light hole may be adjusted according to actual conditions, which will not be described in further detail herein.
In addition, the invention also provides a display device which comprises any one of the touch display panels.
It is understood that the display device includes a movable display device (such as a notebook computer, a mobile phone, etc.), a fixed terminal (such as a desktop computer, a television, etc.), a measuring device (such as a sports bracelet, a temperature measuring instrument, etc.), and the like.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims (10)

1. A touch display panel, comprising: the touch screen comprises an array substrate, a plurality of sub-pixels positioned on the array substrate and a touch layer, wherein the touch layer comprises a plurality of grid units which are mutually connected, and the grid units surround two or more adjacent sub-pixels.
2. The touch display panel according to claim 1, wherein the plurality of sub-pixels includes a plurality of red sub-pixels, a plurality of green sub-pixels, and a plurality of blue sub-pixels arranged in an array, the plurality of rows of red sub-pixels and the plurality of rows of blue sub-pixels are alternately arranged in a column direction, each green sub-pixel is located in a virtual closed pattern formed by two adjacent red sub-pixels and two adjacent blue sub-pixels, and an area of the green sub-pixel is smaller than an area of the red sub-pixel and an area of the blue sub-pixel.
3. The touch display panel according to claim 2, wherein the plurality of grid cells are arranged along a diagonal direction of the virtual closed figure.
4. The touch display panel according to claim 3, wherein the grid cells surround an adjacent one of the red sub-pixels and an adjacent one of the green sub-pixels, and surround an adjacent one of the blue sub-pixels and an adjacent one of the green sub-pixels, respectively.
5. The touch display panel according to claim 2, wherein at least one of the grid cells comprises a first cell and a second cell, the first cell and the second cell are arranged along a first diagonal direction of the virtual closed figure, the first cell and the second cell are connected to each other in a second diagonal direction of the virtual closed figure, and the first diagonal direction and the second diagonal direction are arranged to intersect with each other.
6. The touch display panel of claim 5, wherein at least one of the grid cells surrounds adjacent one of the red sub-pixels, one of the blue sub-pixels, and two of the green sub-pixels.
7. The touch display panel according to any one of claims 2 to 6, further comprising a plurality of fingerprint sensors, wherein the touch display panel includes a fingerprint identification area, and a plurality of through holes are disposed in a boundary of at least one of the grid cells in the fingerprint identification area, corresponding to the fingerprint sensors.
8. The touch display panel of claim 5, wherein a plurality of the through holes are disposed around the green sub-pixel within a boundary of at least one of the grid cells.
9. The touch display panel of claim 1, further comprising a light emitting layer on the array substrate and an encapsulation layer on the light emitting layer, wherein the plurality of sub-pixels comprise a plurality of light emitting units of the light emitting layer, and the fingerprint sensor is disposed in the encapsulation layer.
10. A display device comprising the touch display panel according to any one of claims 1 to 9.
CN202210423793.2A 2022-04-21 2022-04-21 Touch display panel and display device Pending CN114924661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210423793.2A CN114924661A (en) 2022-04-21 2022-04-21 Touch display panel and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210423793.2A CN114924661A (en) 2022-04-21 2022-04-21 Touch display panel and display device

Publications (1)

Publication Number Publication Date
CN114924661A true CN114924661A (en) 2022-08-19

Family

ID=82807291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210423793.2A Pending CN114924661A (en) 2022-04-21 2022-04-21 Touch display panel and display device

Country Status (1)

Country Link
CN (1) CN114924661A (en)

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