CN111367435A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111367435A CN111367435A CN202010186202.5A CN202010186202A CN111367435A CN 111367435 A CN111367435 A CN 111367435A CN 202010186202 A CN202010186202 A CN 202010186202A CN 111367435 A CN111367435 A CN 111367435A
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Classifications
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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
- G06F3/0412—Digitisers structurally integrated in a display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
-
- 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
- G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
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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)
- Signal Processing (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present disclosure relates to a display panel and a display device, wherein the display panel includes: the display substrate is provided with a main display area and an edge area arranged on the peripheral side of the main display area, and the edge area is provided with a first placing area and a second placing area; the antenna structure is positioned on the display side of the display substrate and is formed in the first placement area; the touch structure is positioned on the display side of the display substrate and at least provided with an edge touch part, and the edge touch part is formed in the second placement area; and the signal shielding structure is positioned on the display side of the display substrate and at least comprises a first shielding part, and the first shielding part is positioned between the antenna structure and the edge touch part. On one hand, the display panel can save the space of a mainboard, so that more other functional elements can be arranged on the mainboard; on the other hand, the display panel can prevent the antenna structure and the touch structure from interfering with each other to generate mutual influence through the signal shielding structure.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
At present, in the technical field of display, an antenna is usually arranged on a main board or a housing of a display device such as a mobile phone, but with the trend of continuously compressing the space of the mobile phone along with the trends of a full-screen, more functional components, larger battery capacity and the like, the available design space of the antenna is smaller and smaller. Meanwhile, because the mobile phone antennas required by different communication modes are different, more antennas need to be arranged to cope with various communication modes, and the antennas occupy larger space due to more antennas, which is not beneficial to the integration of other structures in the display device.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure is directed to overcome the disadvantages of the prior art, and to provide a display panel and a display device, which can improve the integration degree of the display product while ensuring the performance of the display product.
The present disclosure provides a display panel including:
the display substrate is provided with a main display area and an edge area arranged on the peripheral side of the main display area, and the edge area is provided with a first placing area and a second placing area;
the antenna structure is positioned on the display side of the display substrate and is formed in the first placement area;
the touch structure is positioned on the display side of the display substrate and at least provided with an edge touch part, and the edge touch part is formed in the second placement area;
the signal shielding structure is positioned on the display side of the display substrate and at least comprises a first shielding part, and the first shielding part is positioned between the antenna structure and the edge touch part.
In an exemplary embodiment of the present disclosure, the signal shielding structure further includes a second shielding part and a third shielding part; the second shielding part is positioned on one side of the antenna structure close to the main display area and is connected with the first shielding part; the third shielding part is located on one side, far away from the main display area, of the edge touch part and is connected with the first shielding part.
In an exemplary embodiment of the present disclosure, the first placement region includes a plurality of first light-emitting sub-regions and first non-light-emitting sub-regions located between adjacent first light-emitting sub-regions;
wherein an orthographic projection of the antenna structure on the display substrate is located on the first non-light emitting sub-region and does not overlap with the first light emitting sub-region.
In one exemplary embodiment of the present disclosure, the antenna structure includes a plurality of loop antennas and a connection antenna located between and connected to adjacent loop antennas;
the orthographic projection of the annular antenna on the display substrate surrounds the first light-emitting subarea, and the connecting antenna is arc-shaped.
In an exemplary embodiment of the present disclosure, the first placement region includes a thin film transistor, a light emitting device connected to the thin film transistor, and an encapsulation layer encapsulating the light emitting device;
the annular antenna comprises a first antenna part and a second antenna part, the first antenna part is arranged on one side, away from the light-emitting device, of the packaging layer, the second antenna part is arranged on the same layer with the grid electrode or the source drain electrode of the thin film transistor, and the second antenna part is connected with the source drain electrode layer.
In an exemplary embodiment of the present disclosure, the first antenna part includes a first coil and a second coil, and the first coil is disposed around the second coil.
In an exemplary embodiment of the present disclosure, the second placement region includes a plurality of second light-emitting sub-regions and second non-light-emitting sub-regions located between adjacent second light-emitting sub-regions;
the edge touch part comprises a plurality of annular touch lines and connecting touch lines which are positioned between and connected with the adjacent annular touch lines, and the orthographic projection of the annular touch lines on the display substrate is positioned on the second non-luminous subarea and surrounds the second luminous subarea; the orthographic projection of the contact control line on the display substrate is located in the second non-luminous subarea, and the contact control line is arc-shaped.
In an exemplary embodiment of the present disclosure, the touch structure further includes a main touch portion, the main touch portion is located on a display side of the display substrate and is formed in the main display area, the main touch portion includes a main touch line, and line widths of the annular touch line and the connection touch line are greater than the main touch line.
In an exemplary embodiment of the present disclosure, the edge region may be bent, a bending axis of the edge region extending in a first direction;
the edge touch part comprises a plurality of edge touch lines, the edge touch lines extend along the first direction and are arranged at intervals in the second direction, and the first direction is perpendicular to the second direction.
In another embodiment of the present disclosure, there is provided a display device including the display panel of any one of the above.
The technical scheme provided by the disclosure can achieve the following beneficial effects:
the display panel provided by the disclosure can save the space of the main board by integrating the antenna structure on the display substrate, so that more other functional elements can be arranged on the main board. Meanwhile, the antenna structure is positioned on the display substrate, so that the space inside the display device can be reduced, a storage space is provided for a larger battery, and the higher cruising requirement of the mobile phone is met.
In addition, in order to reduce the influence of the antenna structure on the display of the display panel, the antenna structure may be disposed at an edge region of the display panel. Meanwhile, the touch structure is integrated on the display substrate, so that the display panel has a touch function. In addition, in order to prevent signal interference between the antenna structure and the touch structure, a signal shielding structure is arranged between the antenna structure and the touch structure, and signals sent by the antenna structure and the touch structure can be effectively shielded through the signal shielding structure, so that mutual influence between the touch structure and the antenna structure is avoided, and good working performance of the antenna structure and the touch structure can be ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 shows a schematic top view of a display panel according to an exemplary embodiment of the present disclosure;
FIG. 2 illustrates a partial cross-sectional schematic view of a display panel according to an exemplary embodiment of the present disclosure;
FIG. 3 illustrates a schematic cross-sectional view of a substrate in a display panel according to an exemplary embodiment of the present disclosure;
FIG. 4 illustrates a schematic diagram of a first placement area in a display panel according to an exemplary embodiment of the present disclosure;
FIG. 5 illustrates a schematic diagram of a second placement area in a display panel according to an exemplary embodiment of the present disclosure;
FIG. 6 illustrates a schematic structural diagram of a loop antenna according to an exemplary embodiment of the present disclosure;
fig. 7 illustrates a schematic structural view of a first antenna part according to an exemplary embodiment of the present disclosure;
FIG. 8 illustrates a partial cross-sectional schematic view of a display panel according to another exemplary embodiment of the present disclosure;
FIG. 9 shows a schematic diagram of an edge touch line according to an example embodiment of the present disclosure;
FIG. 10 shows a schematic diagram of a multiplexer according to an example embodiment of the present disclosure;
FIG. 11 illustrates a schematic top view of a portion of a display panel according to an exemplary embodiment of the present disclosure;
FIG. 12 shows a schematic top view of a portion of a display panel according to another exemplary embodiment of the present disclosure;
FIG. 13 shows a schematic top view of a portion of a display panel according to yet another exemplary embodiment of the present disclosure;
FIG. 14 shows a schematic plan view of a display substrate according to an exemplary embodiment of the present disclosure;
fig. 15 shows a schematic plan view of a display substrate according to another exemplary embodiment of the present disclosure;
fig. 16 shows a schematic plan view of a display substrate according to yet another exemplary embodiment of the present disclosure;
FIG. 17 shows a schematic top view of a display panel according to another exemplary embodiment of the present disclosure;
FIG. 18 shows a schematic top view of a display panel according to yet another exemplary embodiment of the present disclosure;
FIG. 19 shows a schematic diagram of a display panel edge region according to an example embodiment of the present disclosure;
fig. 20 illustrates a partial cross-sectional schematic view of a display panel according to still another exemplary embodiment of the present disclosure.
Description of reference numerals:
1. a display substrate; 2. an antenna structure; 3. a touch structure; 4. a signal shielding structure; 5. a substrate; 6. a thin film transistor; 7. a planarization layer; 8. a light emitting device; 9. a support portion; 10. a packaging layer; 11. a main display area; 12. an edge region; 21. a loop antenna; 22. connecting an antenna; 23. an antenna module; 31. a main touch portion; 32. an edge touch section; 41. a first shielding part; 42. a second shielding part; 43. a third shielding part; 51. a first polyimide film; 52. a conductor layer; 53. a second polyimide film; 54. a barrier layer; 55. a buffer layer; 56. a third polyimide; 61. an active layer; 62. a first gate insulating layer; 63. a first conductive portion; 64. a second gate insulating layer; 65. a second conductive portion; 66. a source electrode; 67. a drain electrode; 68. an interlayer dielectric layer; 81. a first electrode; 82. a light emitting layer; 83. a second electrode; 84. a pixel defining layer; 101. a touch layer; 102. connecting holes; 103. opening a hole; 104. a multiplexer; 105. a first light-emitting sub-region; 106. a second light-emitting sub-region; 107. a first feedback line; 108. a second feedback line; 109. a signal line; 110. an insulating layer; 121. a first placement area; 122. a second placement area; 211. a first antenna section; 212. a second antenna section; 311. an annular touch line; 312. connecting a contact control line; 313. an edge touch line; 1041. an input end; 1042. an output end; 2111. a first coil; 2112. a second coil.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details.
It is noted that references herein to "on … …", "formed on … …" and "disposed on … …" can mean that one layer is formed or disposed directly on another layer or that one layer is formed or disposed indirectly on another layer, i.e., there is another layer between the two layers.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
It should be noted that, although the terms "first", "second", etc. may be used herein to describe various elements, components, elements, regions, layers and/or sections, these elements, components, elements, regions, layers and/or sections should not be limited by these terms. Rather, these terms are used to distinguish one element, component, element, region, layer or section from another.
In the present disclosure, unless otherwise specified, the term "disposed on the same layer" is used to mean that two layers, components, members, elements or portions can be formed by the same patterning process, and the two layers, components, members, elements or portions are generally formed of the same material.
The embodiment of the present disclosure provides a display panel, as shown in fig. 1 to 5, the display panel includes a display substrate 1, an antenna structure 2, a touch structure 3, and a signal shielding structure 4. Wherein:
the display substrate 1 has a main display region 11 and an edge region 12 disposed on the peripheral side of the main display region 11, and the edge region 12 has a first placement region 121 and a second placement region 122.
The antenna structure 2 is located on the display side of the display substrate 1, and is formed on the first placement region 121, so that the display panel is integrated with the antenna structure 2. By highly integrating the antenna structure 2 on the display substrate 1, the space of the main board can be saved, and more other functional elements can be arranged on the main board. Meanwhile, the antenna structure 2 is located on the display substrate 1, so that the space inside the display device can be reduced, a storage space is provided for a larger battery, and the requirement of the mobile phone for higher cruising can be met. Furthermore, the arrangement of the antenna structure 2 in the edge region 12 can reduce the influence of the antenna structure 2 on the display of the display panel.
The touch structure 3 is located on the display side of the display substrate 1, and the touch structure 3 at least has an edge touch portion 32, and the edge touch portion 32 is formed on the second placement area 122, so that the edge of the display panel has a touch function.
The signal shielding structure 4 is also located on the display side of the display substrate 1, and the signal shielding structure 4 at least includes a first shielding portion 41, and the first shielding portion 41 is located between the antenna structure 2 and the edge touch portion 32. Set up signal shielding structure 4 between antenna structure 2 and touch-control structure 3 and can shield the signal that antenna structure 2 and touch-control structure 3 sent effectively to avoid influencing each other between touch-control structure 3 and antenna structure 2, thereby can guarantee the good working property of antenna structure 2 and touch-control structure 3.
The signal shielding structure 4 may include a second shielding part 42 and a third shielding part 43, wherein the second shielding part 42 may be disposed on a side of the antenna structure 2 close to the main display area 11 and may be connected to the first shielding part 41. The third shielding part 43 may be located on a side of the edge touch part 32 away from the main display area 11, and connected to the first shielding part 41.
Furthermore, the first shielding part 41, the second shielding part 42, and the third shielding part 43 may be shielding wires, and the shielding wires may be made of metal, so as to effectively shield the signals emitted by the touch structure 3 and the signals emitted by the antenna structure 2, and reduce mutual interference therebetween. It should be understood that, in order to achieve a better shielding effect, one side of the shielding line departing from the display substrate 1 is higher than one side of the touch structure 3 departing from the display substrate 1 and is higher than one side of the antenna structure 2 departing from the display substrate 1, that is, a distance between one side of the shielding line departing from the display substrate 1 and the display substrate 1 is greater than a distance between one side of the touch structure 3 departing from the display substrate 1 and the display substrate 1, and is greater than a distance between one side of the antenna structure 2 departing from the display substrate 1 and the display substrate 1. But not limited thereto, the present disclosure does not limit the style of the signal shielding structure 4 and the material of the signal shielding structure 4, and other styles and materials of the signal shielding structure 4 are within the scope of the present disclosure.
The display panel according to the embodiment of the present disclosure will be described in detail below with reference to the drawings.
As shown in fig. 2, the display substrate 1 includes a substrate 5, a thin film transistor 6, a light emitting device 8, and an encapsulation layer 10; wherein:
the substrate 5 may be a flexible substrate 5 to improve the flexibility of the display substrate 1, so that the display substrate 1 can have properties of being bendable, stretchable, and the like, so as to expand the application range of the display substrate 1, that is: the display substrate 1 may be bent, that is, the display substrate 1 may be bent at the edge region 12, or may be bent along the central line; but not limited thereto, the substrate 5 may also be rigid, and the performance of the substrate 5 may be determined according to the actual requirements of the product.
Further, as shown in fig. 3, the substrate 5 may have a single-layer structure or a multi-layer structure. For example, the substrate 5 may include a first polyimide film 51, a conducting wire layer 52, a barrier layer 54, and a buffer layer 55, which are sequentially stacked, wherein the thickness of the first polyimide film 51 may be, but is not limited to, 100nm to 10000nm, and other thicknesses are also possible within the scope of the present disclosure.
The wire layer 52 may have one or more wires for connecting the antenna structure 2 to an external device. Preferably, in order to secure the efficiency of the antenna signal transmission, a plurality of wires may be provided.
Preferably, the second polyimide film 53 may be formed on the substrate 5 such that the conductive line layer is positioned on the second polyimide film 53, and the third polyimide film 56 may be formed on the conductive line layer 52, wherein the second polyimide film 53 and the third polyimide film 56 are used to protect the conductive line layer 52 and prevent the conductive line layer 52 from being broken when the display substrate 1 is stretched or bent. Wherein the thickness of the second polyimide film 53 may be the same as the thickness of the third polyimide film 56, it is understood that the thickness ratio of the second polyimide film 53 to the third polyimide film 56 is 1:1, but not limited to, the thickness ratio of the second polyimide film 53 to the third polyimide film 56 may be between 1:19 to 99:1, which is within the scope of the present disclosure.
The buffer layer 55 can be made of materials such as silicon nitride and silicon oxide, so as to achieve the effects of blocking water and oxygen and blocking alkaline ions; the structure of the substrate 5 is not limited to this, and may be determined according to actual needs.
The thin film transistor 6 may be a top gate type, the active layer 61 of the thin film transistor 6 may be formed on the buffer layer 55 of the flexible substrate 5, and the material of the active layer 61 may be a metal oxide or low temperature polysilicon. The first gate insulating layer 62 covers the active layer 61, and the first conductive portion 63 is formed on a side of the first gate insulating layer 62 facing away from the flexible substrate 5. The second gate insulating layer 64 covers the first conductive portion 63 and the first gate insulating layer 62, and the second conductive portion 65 is formed on a side of the second gate insulating layer 64 facing away from the flexible substrate 5. The first conductive portion 63 is a gate of the thin film transistor 6, and the first conductive portion 63 and the second conductive portion 65 may form a storage capacitor. It should be understood that first conductive portion 63 may be one plate of a storage capacitor and second conductive portion 65 the other plate.
An interlayer dielectric layer 68 covers the second gate insulating layer 64, and a source electrode 66 and a drain electrode 67 are formed on one side of the interlayer dielectric layer 68 facing away from the substrate 5 and located on two opposite sides of the first conductive part 63 and the second conductive part 65, respectively, and the source electrode 66 and the drain electrode 67 can be in contact with two opposite sides of the active layer 61 through metal via holes, respectively. But the type of the thin film transistor 6 is not limited to the top gate type but may be a bottom gate type, which is within the scope of the present disclosure.
The light emitting device 8 may be formed on a side of the interlayer dielectric layer 68 facing away from the substrate 5, and this light emitting device 8 may include sequentially forming the first electrode 81 and the pixel defining layer 84. When the thin film transistor 6 is of a top gate type, a planarization layer 7 may be formed before the light emitting device 8 is formed, the planarization layer 7 may be disposed between the source and drain electrodes 66 and 67 and the first electrode 81, and the planarization layer 7 may be formed of an organic material, for example: materials such as photoresists, acrylic-based polymers, silicon-based polymers, and the like; the first electrode 81 may be electrically connected to the drain 67 through a metal via, the first electrode 81 may be an anode made of ITO (indium tin oxide); the pixel defining layer 84 may cover the planarization layer 7, and the pixel defining layer 84 may be made of organic materials, such as: photoresist, and the like. A light-emitting layer 82 is further disposed on a side of the pixel defining layer 84 away from the substrate 5, and the light-emitting layer 82 may be an organic electroluminescent material; the second electrode 83 covers the light-emitting layer 82, and the polarity of the second electrode 83 is opposite to that of the first electrode 81; the second electrode 83 can be a cathode made of a metal material such as Al (aluminum).
A supporting portion 9 may be further disposed on a side of the pixel defining layer 84 away from the interlayer dielectric layer 68, and the supporting portion 9 may function to support a protective film (not shown in the figure) so as to avoid a situation that the protective film is in contact with the first electrode 81 or other wires to cause easy damage to the first electrode 81 or other wires. It should be noted that the protective film layer is mainly present during the transfer of the semi-finished product to avoid the semi-finished product from being damaged during the transfer, specifically: in the process of transferring the substrate on which the support 9 is fabricated to the deposition line, a protective film layer may be coated, and when deposition of the light emitting material is required, the protective film layer is removed.
For example, the material of the supporting portion 9 may be the same as the material of the pixel defining layer 84, and the supporting portion 9 and the pixel defining layer 84 may be formed by the same patterning process, but not limited thereto, the material of the supporting portion 9 may also be different from the material of the pixel defining layer 84, and the supporting portion 9 and the pixel defining layer 84 may also be formed by different patterning processes.
The encapsulation layer 10 is formed on the side of the light emitting layer 82 away from the substrate 5, the encapsulation layer 10 may be a single-layer structure or a multi-layer structure, and when the encapsulation layer 10 is a multi-layer structure, the encapsulation layer 10 may include an inorganic encapsulation film layer and an organic encapsulation film layer which are alternately arranged. The inorganic packaging film layer can be made of inorganic materials such as silicon nitride and silicon oxide, and the organic packaging film layer can be made of materials such as acrylic-based polymers and silicon-based polymers.
As shown in fig. 4, the first placement area 121 may include a plurality of first light-emitting sub-areas 105 and first non-light-emitting sub-areas located between adjacent first light-emitting sub-areas 105, the first light-emitting sub-areas 105 may correspond to positions of the light-emitting layers 82 located in the first placement area 121 in the display substrate 1, and the first non-light-emitting sub-areas may be located at positions of the display substrate 1 other than the light-emitting layers 82 located in the first placement area 121, that is, at positions where no light is emitted in the first placement area 121. The orthographic projection of the antenna structure 2 on the display substrate 1 is located on the first non-light-emitting sub-region and does not overlap with the first light-emitting sub-region 105, so that the antenna structure 2 is prevented from blocking the first light-emitting sub-region 105 of the display substrate 1, and the display effect of the display panel can be ensured.
In addition, as shown in fig. 20, a first feedback line 107 and a second feedback line 108 may be provided, wherein the first feedback line 107 is connected to the antenna structure 2 and is provided at the same layer as the antenna structure 2, and the second feedback line 108 is connected in parallel with the first feedback line 107. For example, when the antenna structure 2 is located on a side of the package layer 10 away from the substrate 5, the second feedback line 108 may be disposed on a side of the package layer 10 close to the substrate 5. The second feedback line 108 may be connected to a signal line 109, and the antenna signal may be transmitted to the gate or the source 66 or the drain 67 through the signal line 109. Because the first feedback line 107 is connected in parallel with the second feedback line 108, the resistance of the antenna structure 2 is reduced, and the efficiency and accuracy of signal transmission of the antenna structure 2 can be improved.
Further, the antenna structure 2 may include a plurality of loop antennas 21 and a connection antenna 22 located between and connected to adjacent loop antennas 21. The orthographic projection of the loop antenna 21 on the display substrate 1 surrounds the first light-emitting sub-area 105, i.e. the loop antenna 21 is arranged at the periphery of the light-emitting layer 82. The shape of the connection antenna 22 may be an arc shape, which can ensure that the connection antenna 22 can be stretched or compressed during the bending or stretching process of the display substrate 1, and ensure that the connection antenna 22 does not break when the display substrate 1 is bent or stretched.
Preferably, as shown in fig. 6, in order to improve the efficiency of receiving and transmitting signals by the antenna, the loop antenna 21 structure 2 may include a first antenna portion 211 and a second antenna portion 212, and the first antenna portion 211 may be disposed on a side of the package layer 10 away from the light emitting device 8, that is, may be disposed above the package layer 10. The second antenna portion 212 may be disposed on the same layer as the gate electrode of the thin film transistor 6 or the source electrode 66 and the drain electrode 67, and the second antenna portion 212 may be connected to the source electrode 66 and the drain electrode 67, and since the source electrode 66 and the drain electrode 67 have low resistance, the second antenna portion 212 may be connected to a portion of the source electrode 66 or a portion of the drain electrode 67 to reduce the resistance of the second antenna portion 212, so that signals of the antenna may be better transmitted to an external device, and since the second antenna portion 212 is connected to only a portion of the source electrode 66 or a portion of the drain electrode 67, display of the display panel may not be affected. But not limited thereto, the second antenna portion 212 may also be disposed on a side of the flexible substrate away from the light emitting device 8, and the second antenna portion 212 may be connected to the source electrode 66 and the drain electrode 67 of the thin film transistor 6 through via holes by disposing the via holes on the flexible substrate, so as to transmit antenna signals.
Further, as shown in fig. 7, in order to further enhance the signal receiving and transmitting capability of the antenna structure 2, the first antenna portion 211 may include a first coil 2111 and a second coil 2112, wherein the first coil 2111 may be disposed around the second coil 2112. Specifically, the first coil 2111 may be a single-layer ring shape, or may be a spiral shape, but is not limited thereto, and the first coil 2111 may also have other shapes, and is within the protection scope of the present disclosure.
The second coil 2112 may have a single-layer annular shape or a spiral shape, but the present disclosure is not limited thereto, and the second coil 2112 may have other shapes. Preferably, in order to ensure good connection of the first coil 2111 and the second coil 2112, and to better prevent interference between the first coil 2111 and the second coil 2112, when the first coil 2111 is in a spiral shape, the second coil 2112 may be provided in a single-layer loop shape.
In addition, an insulating layer 110 may be disposed on the first coil 2111 and the second coil 2112 to prevent the first coil 2111 and the second coil 2112 from being damaged during transportation or subsequent processing.
Preferably, the second antenna portion 212 may include a third coil and a fourth coil, wherein the third coil may be disposed around the fourth coil. Specifically, the third coil may be a single-layer ring shape, or may be a spiral shape, but is not limited thereto, and the third coil may also have other shapes, and is within the protection scope of the present disclosure.
The fourth coil may have a single-layer ring shape or a spiral shape, but is not limited thereto, and the fourth coil may have other shapes, and is within the scope of the present disclosure. As shown in fig. 5, a plurality of second light-emitting sub-regions 106 and second non-light-emitting sub-regions located between adjacent second light-emitting sub-regions 106 may be included on the second placement region 122, the second light-emitting sub-regions 106 may correspond to the positions of the light-emitting layers 82 located in the second placement region 122 in the display substrate 1, and the second non-light-emitting sub-regions may be aligned to the positions of the display substrate 1 located outside the light-emitting layers 82 located in the second placement region 122, that is, the positions where no light is emitted in the second placement region 122. The orthographic projection of the edge touch portion 32 on the display substrate 1 is located on the second non-light-emitting sub-area and does not overlap with the second light-emitting sub-area 106, so that the edge touch structure 3 is prevented from blocking the second light-emitting sub-area 106 of the display substrate 1, and the display effect of the display panel can be ensured.
Further, the edge touch part 32 may include a plurality of ring-shaped touch lines 311 and a connection touch line 312 located between and connected to adjacent ring-shaped touch lines 311. The orthographic projection of the annular touch line 311 on the display substrate 1 surrounds the second light-emitting sub-region 106, i.e. the annular touch line 311 is disposed at the periphery of the light-emitting layer 82. The shape of the connecting touch control line 312 may be an arc shape, which can ensure that the connecting touch control line 312 can be extended or compressed in the process of bending or stretching the display substrate 1, thereby ensuring that the connecting touch control line 312 is not broken when the display substrate 1 is bent or stretched.
The edge touch part 32 may be a mutual capacitance type touch structure 3 having a receiving line and a transmitting line and a connection layer connecting the receiving line and the transmitting line. Preferably, the receiving line may be disposed at the same layer as the first antenna portion 211 of the antenna structure 2, and the transmitting line may be disposed at the same layer as the second antenna portion 212 of the antenna structure 2. Therefore, the edge touch portion 32 and the antenna structure 2 can be disposed by using the same mask, so that the process can be simplified and the manufacturing cost can be reduced. However, the form of the edge touch portion 32 is not limited thereto, and may also be a self-contained touch structure 3, which is within the protection scope of the present disclosure.
In addition, as shown in fig. 8, the display substrate 1 may further include a touch layer 101, the touch layer 101 is formed on the encapsulation layer 10, the edge touch structure 3 may be located in the touch layer 101, and the antenna structure 2 may be located on the touch layer 101 and connected to an external device through a connection hole 102 disposed on the display substrate 1. In order to prevent interference between the antenna structure 2 and the touch structure 3, it should be understood that an insulating structure needs to be disposed between the antenna structure 2 and the touch layer 101.
In addition, as shown in fig. 1, the touch structure 3 further includes a main touch portion 31 in addition to the edge touch portion 32, and the main touch portion 31 is located on the display side of the display substrate 1 and is formed on the main display area 11. The main touch portion 31 may include a plurality of main touch lines, and the main touch portion 31 may also adopt a mutual capacitance type touch structure 3 or a self-capacitance type touch structure 3, which is within the protection scope of the present disclosure.
In order to ensure the touch sensitivity on the edge region 12 and the display effect of the display panel, the line widths of the ring-shaped touch line 311 and the connecting touch line 312 of the edge touch part 32 are greater than the line width of the main touch line. And when the display substrate 1 is stretched or bent, the ratio of the line width of the ring-shaped touch line 311 and the connection touch line 312 to the line width of the main touch line varies with the amount of stretching, and it should be understood that the line width mentioned herein is the diameter of the line. For example, when the stretching amount is ten percent, the line width of the ring-shaped touch line 311 and the connecting touch line 312 is 1.1 times the line width of the main touch line. However, the line width of the main touch line may be the same as the line widths of the ring-shaped touch line 311 and the connecting touch line 312, and is within the scope of the disclosure.
In addition, as shown in fig. 9 and 10, the edge touch portion 32 may include a plurality of edge touch lines 313, since the edge region 12 of the display substrate 1 can be bent, and a bending axis of the edge region 12 extends in the first direction y; therefore, the plurality of edge touch lines 313 extend along the first direction y and are arranged at intervals in the second direction x, wherein the first direction y is perpendicular to the second direction x, so that the touch identification lines of the edge region 12 are not densely arranged, and the probability of false touch of the edge touch portion 32 can be reduced.
In order to further reduce the probability of false touch of the edge touch part 32, a multiplexer 104 may be disposed on the display panel, the multiplexer 104 has a plurality of input terminals 1041 and an output terminal 1042, and each input terminal 1041 of the multiplexer 104 may be connected to an edge touch line 313 for receiving a touch signal. The output terminal 1042 of the multiplexer 104 is connected to an external device for outputting a touch signal.
Preferably, in order to ensure the touch efficiency and further reduce the probability of a false touch, a plurality of multiplexers 104 may be disposed on the display panel, and the multiplexers 104 may be multiplexers 104 with four input terminals 1041, but is not limited thereto, and other numbers of multiplexers 104 with input terminals 1041 may also be selected according to the actual situation, which is within the protection scope of the present disclosure.
The multiplexer 104 can output the touch signal to the external device through the output terminal 1042 only when a predetermined number of input terminals 1041 thereof receive the touch signal. For example: when the multiplexer 104 is a multiplexer 104 with four inputs 1041, the predetermined number may be three, that is: when three input terminals 1041 of the four input terminals 1041 receive the touch signal, the output terminal 1042 outputs the touch signal. But not limited thereto, different predetermined numbers may be set according to actual needs to further reduce the false touch probability, which is within the protection scope of the present disclosure.
The edge touch portion 32 may also detect a fingerprint by using a pinhole imaging method, and only when the edge touch portion 32 detects a complete fingerprint, a touch response is triggered. However, the threshold may be set, and when the area of the fingerprint detected by the edge touch part 32 is greater than or equal to the threshold, a touch response may be triggered. Specifically, the threshold may be seventy percent, but is not limited thereto, and the threshold may be set to other values according to actual needs, which is within the protection scope of the present disclosure.
Further, in order to ensure a lower false touch probability of the edge touch portion 32, the edge touch portion 32 and the main touch portion 31 may be independent from each other, so that the edge touch portion 32 and the main touch portion 31 do not interfere with each other, but not limited thereto, the edge touch portion 32 and the main touch portion 31 may be connected to each other, which is within the protection scope of the present disclosure.
In addition, as shown in fig. 11 to 13, the antenna structure 2 may include at least one antenna module 23, and the at least one antenna module 23 may be disposed in the first disposition region 121. It should be understood that one antenna module 23 may be disposed in the first disposition region 121, and four or sixteen antenna modules 23 may be disposed. When four or sixteen antenna modules 23 are placed in the first placement region 121, each antenna module 23 may be connected to each other. Although the more the antenna modules 23, the higher the signal receiving efficiency of the antenna structure 2, the power consumption of the antenna structure 2 is greatly increased, and therefore, the antenna modules 23 can be arranged as many as possible within the allowable power consumption range of the antenna structure 2 to achieve the best performance of the antenna structure 2.
Preferably, as shown in fig. 14 to 16, the edge region 12 may be disposed on one side, two sides, or three sides of the main display region 11, that is, the antenna structure 2 and the edge touch portion 32 may be disposed on one side, two sides, or three sides of the main display region 11. And because this marginal zone 12 all can take place to buckle to make antenna structure 2 can be located the side of display panel, and then can improve the screen of display panel and account for than, improve display effect. Meanwhile, the antenna structure 2 is arranged on the side face of the display panel, so that the space of the main board can be saved, and more other functional elements can be arranged on the main board.
In addition, as shown in fig. 17 to 18, when the display panel can be bent along the central line, the display panel may have two main display areas 11, and when the two main display areas 11 are overlapped, the antenna structures 2 on the peripheral sides of the two main display areas 11 still receive and transmit signals simultaneously.
Further, as shown in fig. 19, a plurality of openings 103 may be further disposed on the edge region 12 of the display substrate 1 for connecting other external devices or placing operation keys.
An embodiment of the present disclosure further provides a display device including the display panel described in any of the foregoing embodiments. The display panel may be an AMOLED (Active-matrix organic light-emitting diode) display panel, but is not limited thereto, as the case may be.
According to the embodiment of the present disclosure, the specific type of the display device is not particularly limited, and any display device commonly used in the art may be used, specifically, for example, an AMOLED display screen, a mobile device such as a mobile phone, a wearable device such as a watch, a VR device, and the like.
It should be noted that the display device includes other necessary components and components besides the display panel, and for example, the display device may further include a main circuit board (i.e., a main board), a housing, a power line, and the like, which can be supplemented by those skilled in the art according to specific requirements of the display device, and will not be described herein again.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. A display panel, comprising:
the display substrate is provided with a main display area and an edge area arranged on the peripheral side of the main display area, and the edge area is provided with a first placing area and a second placing area;
the antenna structure is positioned on the display side of the display substrate and is formed in the first placement area;
the touch structure is positioned on the display side of the display substrate and at least provided with an edge touch part, and the edge touch part is formed in the second placement area;
the signal shielding structure is positioned on the display side of the display substrate and at least comprises a first shielding part, and the first shielding part is positioned between the antenna structure and the edge touch part.
2. The display panel according to claim 1,
the signal shielding structure further comprises a second shielding part and a third shielding part; the second shielding part is positioned on one side of the antenna structure close to the main display area and is connected with the first shielding part; the third shielding part is located on one side, far away from the main display area, of the edge touch part and is connected with the first shielding part.
3. The display panel according to claim 1,
the first placement area comprises a plurality of first light-emitting sub-areas and first non-light-emitting sub-areas positioned between the adjacent first light-emitting sub-areas;
wherein an orthographic projection of the antenna structure on the display substrate is located on the first non-light emitting sub-region and does not overlap with the first light emitting sub-region.
4. The display panel according to claim 3,
the antenna structure comprises a plurality of loop antennas and connecting antennas which are positioned between and connected with the adjacent loop antennas;
the orthographic projection of the annular antenna on the display substrate surrounds the first light-emitting subarea, and the connecting antenna is arc-shaped.
5. The display panel according to claim 3,
the first placing area comprises a thin film transistor, a light emitting device connected with the thin film transistor and an encapsulation layer for encapsulating the light emitting device;
the loop antenna comprises a first antenna part and a second antenna part, wherein the first antenna part is arranged on one side of the packaging layer far away from the light-emitting device, the second antenna part is arranged on the same layer with the grid electrode or the source electrode and the drain electrode of the thin film transistor, and the second antenna part is connected with the source electrode and the drain electrode.
6. The display panel according to claim 5, wherein the first antenna portion comprises a first coil and a second coil, and wherein the first coil is disposed around the second coil.
7. The display panel according to claim 1,
the second placement area comprises a plurality of second light-emitting sub-areas and second non-light-emitting sub-areas positioned between the adjacent second light-emitting sub-areas;
the edge touch part comprises a plurality of annular touch lines and connecting touch lines which are positioned between and connected with the adjacent annular touch lines, and the orthographic projection of the annular touch lines on the display substrate is positioned on the second non-luminous subarea and surrounds the second luminous subarea; the orthographic projection of the contact control line on the display substrate is located in the second non-luminous subarea, and the contact control line is arc-shaped.
8. The display panel according to claim 7, wherein the touch structure further comprises a main touch portion located on the display side of the display substrate and formed in the main display area, the main touch portion comprises a main touch line, and the line widths of the annular touch line and the connecting touch line are larger than the main touch line.
9. The display panel according to claim 1,
the edge region can be bent, and the bending axis of the edge region extends in a first direction;
the edge touch part comprises a plurality of edge touch lines, the edge touch lines extend along the first direction and are arranged at intervals in the second direction, and the first direction is perpendicular to the second direction.
10. A display device characterized in that it comprises a display panel according to any one of claims 1 to 9.
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