CN112331708B - Display panel - Google Patents

Abstract

The embodiment of the invention discloses a display panel, which comprises a thin film transistor array layer, a light-emitting device layer and at least one antenna electrode, wherein the orthographic projection of a non-light-emitting area on the thin film transistor array layer is arranged to cover the orthographic projection of the antenna electrode on the thin film transistor array layer, so that the space for arranging the antenna electrode is correspondingly larger. And the antenna electrode is arranged between the adjacent light-emitting devices, so that the effect of the light-emitting devices is not influenced, and the normal display of the display panel is ensured.

Description

display panel

technical field

Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel.

Background technique

With the development of display technology, there are more and more types of antennas configured in display devices.

In the existing display device, the location space for the antenna arrangement is small, which affects the communication function of the antenna.

SUMMARY OF THE INVENTION

The present invention provides a display panel, so as to increase the space for antenna arrangement, thereby ensuring the normal communication function of the antenna.

An embodiment of the present invention provides a display panel, including a display area, the display area includes a light-emitting area and a non-light-emitting area adjacent to the light-emitting area, and the display panel includes:

a thin film transistor array layer, the thin film transistor array layer includes a plurality of thin film transistors;

A light-emitting device layer, the light-emitting device layer includes a plurality of light-emitting devices, each light-emitting device corresponds to a light-emitting region, and the light-emitting device includes a first electrode, a light-emitting layer, and a first electrode, a light-emitting layer and a first electrode that are stacked from one side of the thin-film transistor array layer to the direction away from the thin-film transistor array layer. two electrodes;

For at least one antenna electrode, the orthographic projection of the non-light-emitting region on the thin film transistor array layer covers the orthographic projection of the antenna electrode on the thin film transistor array layer.

Optionally, the display panel further includes a pixel defining layer, the pixel defining layer is located on one side of the thin film transistor array layer, the pixel defining layer includes a plurality of first openings and a body portion located between the first openings, and the antenna electrode is disposed on the body portion. .

Optionally, the surface of the body part away from the thin film transistor array layer includes grooves corresponding to the antenna electrodes one-to-one, and the antenna electrodes are arranged in the corresponding grooves;

Alternatively, the pixel defining layer includes second openings corresponding to the antenna electrodes one-to-one, and the antenna electrodes are disposed in the corresponding second openings; preferably, the materials of the antenna electrodes are the same as the materials of the first electrodes.

Optionally, the display panel further includes a support column, and the support column is located on the side of the pixel defining layer away from the thin film transistor array layer; In the connection direction, the size of the top structure is smaller than that of the bottom structure.

Optionally, the display panel further includes a support column, the support column is located on the side of the pixel defining layer away from the thin film transistor array layer; the surface of the support column away from the thin film transistor array layer includes grooves corresponding to the antenna electrodes one-to-one, and the antenna electrodes are arranged on the side of the thin film transistor array layer. in the corresponding groove;

Or the support column includes third openings corresponding to the antenna electrodes one-to-one, and the antenna electrodes are arranged in the corresponding third openings.

Optionally, the display panel further includes a support column, the support column is located on the side of the body part away from the thin film transistor array layer; the support column is used as an antenna electrode, and the material of the support column is silver, aluminum, copper, molybdenum, and titanium. , at least one of indium tin oxide, zinc oxide, and indium zinc oxide.

Optionally, the antenna electrodes are arranged in the same layer as the first electrodes, and are located between at least part of the first electrodes;

Or the antenna electrode is located on the side of the second electrode away from the thin film transistor array layer;

Alternatively, the thin film transistor array layer includes an array circuit layer and a planarization layer on the side of the array circuit layer close to the light-emitting device layer, and the antenna electrode is disposed on the planarization layer.

Optionally, the antenna electrodes are strip-shaped, and each antenna electrode extends along the row direction or the column direction of the light-emitting device;

Alternatively, the antenna electrode is in a grid shape, and the orthographic projection of the antenna electrode on the thin film transistor array layer surrounds the orthographic projection of the light emitting device on the thin film transistor array layer; preferably, the antenna electrode spans at least one row of light emitting devices or at least one column of light emitting devices;

The row direction of the light emitting device intersects the column direction of the light emitting device.

Optionally, the second electrode includes an electrode portion and a hollow portion, the orthographic projection of the electrode portion on the thin film transistor array layer at least covers the orthographic projection of the light-emitting layer on the thin film transistor array layer, and the orthographic projection of the hollow portion on the thin film transistor array layer is at least partially The orthographic projections of the antenna electrodes on the thin film transistor array layer overlap.

Optionally, the display panel further includes a non-display area;

The display panel also includes an antenna electrode lead, at least part of the antenna electrode lead is arranged in the non-display area, and the antenna electrode is arranged in the display area; each antenna electrode is respectively connected to two antenna electrode leads, and the antenna electrode leads connected to different antenna electrodes are different;

Preferably, the antenna electrode leads are arranged on the same layer as the antenna electrodes.

An embodiment of the present invention provides a display panel, comprising a thin film transistor array layer, a light emitting device layer and at least one antenna electrode, and the orthographic projection of the non-light emitting area on the thin film transistor array layer is arranged to cover the orthographic projection of the antenna electrode on the thin film transistor array layer , so that the space for arranging the antenna electrodes is correspondingly larger. Compared with the prior art, the space for arranging the antenna electrodes can be increased, thereby avoiding the influence on the communication effect caused by the too small arranging space of the antenna electrodes. In addition, the orthographic projection of the non-light emitting area on the thin film transistor array layer covers the orthographic projection of the antenna electrode on the thin film transistor array layer, so that the antenna electrode does not affect the effect of the light emitting device and ensures the normal display of the display panel.

Description of drawings

1 is a top view of a display panel according to an embodiment of the present invention;

2 is a cross-sectional view of a display panel according to an embodiment of the present invention;

3 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

4 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

5 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

6 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

7 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

8 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

9 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

10 is a top view of another display panel provided by an embodiment of the present invention;

11 is a top view of another display panel provided by an embodiment of the present invention;

12 is a top view of another display panel provided by an embodiment of the present invention;

13 is a cross-sectional view of another display panel provided by an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a display device provided by an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

As described in the background art, in the existing display device, there is an unreasonable layout of the antenna position, so that the position space for the antenna arrangement is small, and the communication function of the antenna is affected. The inventor found that the reason for the above problem is that in the existing display device, the antenna is usually not only arranged inside the back cover of the display device, near the battery, or only in the non-display area of the display panel, the antenna usually includes antenna electrodes and Antenna lead, arranging the antenna on the inside of the back cover and near the battery will not only reduce the layout space, but also the wiring will be easily worn; and because the non-display area of the display panel itself is small, and many displays have been arranged in the non-display area The driven signal line makes the antenna arrangement space more limited when the antenna is only arranged in the non-display area of the display panel, which affects the normal communication function of the antenna.

1 is a top view of a display panel provided by an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a display panel provided by an embodiment of the present invention. The cross-sectional view shown in FIG. 2 can be obtained by cutting along the section line AA' corresponding to FIG. 1 and 2, the display panel includes a display area AA and a non-display area NAA, the display area AA includes a light-emitting area AA1 and a non-light-emitting area AA2 adjacent to the light-emitting area, including:

The thin film transistor array layer 110, the thin film transistor array layer 110 includes a plurality of thin film transistors;

The light-emitting device layer 120, the light-emitting device layer 120 includes a plurality of light-emitting devices 1201, each light-emitting device 1201 corresponds to a light-emitting area AA1, and the light-emitting device 1201 includes a layer of light-emitting devices arranged from the thin-film transistor array layer 110 side to the direction away from the thin-film transistor array layer 110. the first electrode 121, the light-emitting layer 122 and the second electrode 123;

For at least one antenna electrode 130 , the orthographic projection of the non-light-emitting area AA2 on the thin film transistor array layer 110 covers the orthographic projection of the antenna electrode 130 on the thin film transistor array layer 110 .

The antenna electrode 130 in this embodiment may be an NFC (Near Field Communication, Near Field Communication) antenna electrode 130 .

Specifically, the thin film transistor array layer 110 may include a semiconductor layer and at least two metal layers on one side of the semiconductor layer. Multiple thin film transistors are formed in the semiconductor layer and at least two metal layers on one side of the semiconductor layer, and multiple thin film transistors may also be formed. capacitor. The thin film transistor array layer 110 may include a plurality of pixel circuits, and the pixel circuits may be existing pixel circuits such as 2T1C and 7T1C.

The light-emitting device layer 120 includes a plurality of light-emitting devices 1201 , and the light-emitting devices 1201 may be organic light-emitting devices or inorganic light-emitting devices, which are not specifically limited in this embodiment. Taking the light-emitting device as an organic light-emitting device as an example, the first electrode 121 may be the anode of the light-emitting device, and the second electrode 123 may be the cathode of the light-emitting device. The first electrode 121 may adopt a three-layer structure, wherein the first layer and the third layer may be metal oxide layers such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO) , the second layer in the middle can be a metal layer (such as silver or copper). The material of the second electrode 123 may be an ITO transparent electrode or a magnesium-silver alloy. The light-emitting layer 122 of the light-emitting device may only include a single-layer film layer, that is, only a light-emitting material layer; it may also include a hole injection layer, a hole transport layer, and a light-emitting material layer stacked from the first electrode 121 to the second electrode 123. , an electron transport layer, an electron injection layer, etc. In addition, the light-emitting layer 122 may at least include a red light-emitting layer 1221, a green light-emitting layer 1222 and a blue light-emitting layer 1223, so as to realize the display of various colors.

The display panel further includes at least one antenna electrode 130, the antenna electrode 130 is located on the same side of the thin film transistor array layer 110 as the light emitting device layer 120, and in the thickness direction z of the display panel, the antenna electrode 130 is located at least between some adjacent light emitting devices 1201. However, it should be noted that the antenna electrode 130 and the light-emitting device are insulated to avoid the influence of the antenna electrode 130 on the light-emitting effect of the light-emitting device 1201 and the influence of the light-emitting device 1201 on the communication effect of the antenna electrode 130. The antenna electrode 130 may be formed during the manufacturing process of the display panel. FIG. 2 exemplarily shows the case where the antenna electrode 130 is in the same layer as the first electrode 121 of the light-emitting device, and the antenna electrode 130 may be located at least between some light-emitting devices. , then for the display panel shown in FIG. 2 , the antenna electrode 130 and the first electrode 121 can be formed in the same manufacturing process, thereby simplifying the manufacturing process of the display panel. The antenna electrode 130 may not be in the same layer as the first electrode 121 , which is not specifically limited in this embodiment. When the antenna electrode 130 and the first electrode 121 are in the same layer and are fabricated in the same manufacturing process, the materials of the antenna electrode 130 and the first electrode 121 may be the same. The antenna electrode 130 and the first electrode 121 are in the same layer but are not fabricated in the same preparation process, or when the antenna electrode 130 and the first electrode 121 are in different layers, the materials of the antenna electrode 130 and the first electrode 121 may be different. Optionally, The material of the antenna electrode 130 can be at least one of silver, aluminum, copper, molybdenum, titanium, indium tin oxide, zinc oxide, and indium zinc oxide. It is a single-layer metal module or oxide film.

Because the orthographic projection of the non-light-emitting area on the thin film transistor array layer covers the orthographic projection of the antenna electrode on the thin-film transistor array layer, the display area of the display panel is large, and the area of the non-light-emitting area AA2 is correspondingly large, so the antenna electrodes are arranged. The space of the antenna electrode 130 is correspondingly larger. Compared with the prior art, the arrangement space of the antenna electrode 130 can be increased, thereby avoiding the influence on the communication effect caused by the too small arrangement space of the antenna electrode 130 . In addition, the antenna electrode 130 is disposed in the non-light-emitting area AA2, which will not affect the effect of the light-emitting device 1201 and ensure the normal display of the display panel.

The display panel of this embodiment includes a thin film transistor array layer, a light emitting device layer and at least one antenna electrode, and the orthographic projection of the non-light emitting area on the thin film transistor array layer covers the orthographic projection of the antenna electrode on the thin film transistor array layer, so that the antenna is arranged The space of the electrodes is correspondingly larger, which can increase the arrangement space of the antenna electrodes compared with the prior art, thereby avoiding the influence on the communication effect caused by the too small arrangement space of the antenna electrodes. Moreover, the orthographic projection of the non-light emitting area on the thin film transistor array layer covers the orthographic projection of the antenna electrode on the thin film transistor array layer, so that the antenna electrode will not affect the light emission of the light emitting device and ensure the normal display of the display panel.

On the basis of the above embodiment, optionally, the antenna electrode 130 is located between the second electrode 123 and the thin film transistor array layer 110; thus, the antenna electrode 130 can be fabricated during the display panel fabrication process. There may be various situations in which the antenna electrode 130 is located between the second electrode 123 and the thin film transistor array. For details, please refer to the situations shown in FIGS. 3 to 7 below.

Fig. 3 is a cross-sectional view of another display panel provided by an embodiment of the present invention, and Fig. 3 may correspond to a cross-sectional view taken along BB' of Fig. 1 . Referring to FIG. 3 , optionally, the display panel further includes a pixel defining layer 140 located on one side of the thin film transistor array layer 110 , and the pixel defining layer 140 includes a plurality of first openings 141 and a plurality of first openings 141 . The body portion 144 and the antenna electrode 130 are disposed on the body portion 144 .

The arrangement of the antenna electrode 130 on the body portion 144 may mean that the antenna electrode 130 is arranged on one side of the body portion 144 , or it may mean that the antenna electrode 130 is arranged in the body portion 130 .

Each first opening 141 of the pixel defining layer 140 may define a sub-pixel, each sub-pixel may correspond to a light-emitting device, and the light-emitting layer 122 is located in the first opening 141 . The support pillars 150 may be used to support the reticle during the manufacturing process of the display panel.

3 , optionally, the surface of the body portion 142 away from the thin film transistor array layer includes grooves 142 corresponding to the antenna electrodes 130 one-to-one, and the antenna electrodes 130 are disposed in the corresponding grooves 142 .

Specifically, since the pixel-defining layer 140 is used to define sub-pixels, the pixel-defining layer 140 itself is located between adjacent light-emitting devices, and disposing the antenna electrode 130 on the surface of the pixel-defining layer 140 can ensure that the antenna electrode 130 emits light in adjacent areas. between devices, so as to ensure that the arrangement of the antenna electrode 130 will not affect the light emission of the light emitting device. In addition, since the support column 150 is included between the pixel defining layer 140 and the light emitting device, the material of the support column 150 can be an organic insulating material. Therefore, the antenna electrode 130 is arranged on the surface of the pixel defining layer 140 away from the thin film transistor array layer 110, which can There is no need to additionally dispose an insulating layer between the antenna electrode 130 and the second electrode 123 of the light emitting device, so that the display panel has fewer film layers, and accordingly, the manufacturing process is relatively simple. In addition, by arranging the groove 142 on the surface of the pixel defining layer 140 away from the thin film transistor array layer 110, and the antenna electrode 130 is arranged in the groove 142, the arrangement of the antenna electrode 130 can not increase the thickness of the display panel, thereby ensuring the display panel. thinning.

The process of forming the display panel shown in FIG. 3 may be to form a semiconductor layer and a multi-layer metal layer on a substrate, and then form a thin film transistor array layer 110, and the film layer of the thin film transistor array layer 110 closest to the light emitting device layer 120 may be planarized. Floor. A first electrode 121 is formed on one side of the planarization layer, then a whole layer of pixel definition layer material is formed, a mask process is used to form the first opening 141 and groove 142 of the pixel definition layer 140, and then the antenna electrode 130 is formed, and finally Evaporation of the light-emitting material of the light-emitting layer 122 and fabrication of the second electrode 123 .

The process of forming the display panel shown in FIG. 3 may also be to form a semiconductor layer and a multi-layer metal layer on the substrate, and then form the thin film transistor array layer 110. The film layer of the thin film transistor array layer 110 closest to the light emitting device layer 120 may be flat. chemical layer. A whole layer of pixel-defining layer material is formed on one side of the planarization layer, the first opening 141 and the groove 142 of the pixel-defining layer 140 are formed by a mask process, and the first electrode 121 is formed in the first opening 141 by the same process, The antenna electrode 130 is formed in the groove, and finally, the luminescent material of the luminescent layer 122 is evaporated and the second electrode 123 is fabricated. The process after the above-mentioned planarization layer may also be: the process of forming the first electrode 121 on the planarization layer may also be to form a first electrode layer on the planarization layer first, and then pattern to form the first electrode layer distributed in the array. Electrode 121 . Then, a pixel defining layer 140 is formed on the first electrode 121 , and after patterning the pixel defining layer 140 , a first opening 141 and a groove 142 are formed, and the first opening 141 is used to expose the first electrode 121 . The antenna electrode 130 is formed by deposition (evaporation) in the groove 142 , and finally, the luminescent material vapor deposition of the luminescent layer and the fabrication of the second electrode are performed.

Fig. 4 is a cross-sectional view of another display panel provided by an embodiment of the present invention, and Fig. 4 may correspond to a cross-sectional view taken along BB' of Fig. 1 . Referring to FIG. 4 , optionally, the pixel defining layer 140 includes second openings 143 corresponding to the antenna electrodes 130 one-to-one, and the antenna electrodes 130 are disposed in the corresponding second openings 143 ; The materials of the electrodes 121 are the same.

For the same reason as the above analysis about the display panel shown in FIG. 3 , the antenna electrode 130 is arranged on the surface of the pixel defining layer 140 to ensure that the antenna electrode 130 is between adjacent light-emitting devices, thereby ensuring that the setting of the antenna electrode 130 will not. The light emission of the light-emitting device is affected. In addition, there is no need to additionally dispose an insulating layer between the antenna electrode 130 and the second electrode 123 of the light emitting device, so that the display panel has less film layers, and accordingly, the manufacturing process is relatively simple. In addition, by arranging the pixel defining layer 140 to include the second opening 143, and the antenna electrode 130 being arranged in the second opening 143, the arrangement of the antenna electrode 130 can not increase the thickness of the display panel, thereby ensuring the lightness and thinness of the display panel.

The manufacturing process of the display panel shown in FIG. 4 is similar to the manufacturing process of the display panel shown in FIG. 3, but different from the manufacturing process of the display panel shown in FIG. An opening 141 and a second opening 143 . When the structure of the second opening 143 of the pixel-defining layer 140 is different from that of the groove 142 , the second opening 143 penetrates the pixel-defining layer 140 , and the groove 142 does not penetrate the pixel-defining layer 140 . For the display panel shown in FIG. 3, the exposure intensity at the position of the first opening 141 and the position of the groove 142 are different; for the display panel shown in FIG. exposure intensity.

Continuing to refer to FIG. 3 and FIG. 4 , optionally, the display panel further includes a support column 150 , and the support column 150 is located on a side of the pixel defining layer 140 away from the thin film transistor array layer 110 . The support column 150 includes a bottom structure 151 covering the antenna electrode 130 and a top structure 152 protruding from the bottom structure. The size d1 of the top structure 152 is smaller than the size d2 of the bottom structure 151 in the connecting direction of adjacent light emitting devices.

Specifically, the bottom structure 151 of the support column 150 covers the antenna electrode 130, so that the second electrode 123 on the side of the support column 150 away from the thin film transistor array layer 110 cannot be in contact with the antenna electrode 130, and the material of the support column 150 can be an organic insulating material , so that the support column 150 acts as an insulating layer between the antenna electrode 130 and the second electrode 123 of the light emitting device. In the connection direction of adjacent light-emitting devices, the size of the top structure 152 is smaller than that of the bottom structure 151, so that for the same support column 150 and the same light-emitting device, the top structure 152 and the light-emitting layer of the light-emitting device are closest to the support column The distance on the side of the 150 is greater than the distance between the bottom structure 151 and the light-emitting layer closest to the side of the support column 150, thereby reducing the blocking of the support column 150 for the light emitted by the light-emitting device with a large viewing angle, thereby ensuring high brightness at a large viewing angle. and better display effect. For the structure of the support column 150 shown in FIG. 3 and FIG. 4 , after forming a whole layer of the material of the support column 150 , the halftone process can be used to manufacture the pattern structure.

The display panel structure shown in FIGS. 3 and 4 corresponds to the structure in which the antenna electrode 130 is disposed on the side of the support column 150 close to the thin film transistor array layer 110 . In other embodiments of the present invention, the antenna electrode 130 may also be disposed on the support column 150 away from the side of the thin film transistor array layer 110 . One side of the thin film transistor array layer 110 or the support column 150 includes an opening, and the antenna electrode 130 is disposed in the opening of the support column 150 . Fig. 5 is a cross-sectional view of another display panel provided by an embodiment of the present invention, and Fig. 5 may correspond to a cross-sectional view taken along BB' in Fig. 1 . Referring to FIG. 5 , optionally, the surface of the support column 150 away from the thin film transistor array layer 110 includes grooves 151 corresponding to the antenna electrodes 130 one-to-one, and the antenna electrodes 130 are disposed in the corresponding grooves 151 .

Since the support column 150 itself is located between the adjacent light-emitting devices, the antenna electrode 130 is arranged on the surface of the support column 150 to ensure that the antenna electrode 130 is between the adjacent light-emitting devices, thereby ensuring that the antenna electrode 130 will not have a light-emitting device. luminous effect. In addition, by arranging the groove 151 on the surface of the support column 150 away from the thin film transistor array layer 110, and the antenna electrode 130 is arranged in the groove 151, the arrangement of the antenna electrode 130 can not increase the thickness of the display panel, thereby ensuring that the Thinner.

Fig. 6 is a cross-sectional view of another display panel provided by an embodiment of the present invention, and Fig. 6 may correspond to a cross-sectional view taken along BB' of Fig. 1 . Referring to FIG. 6 , optionally, the support column 150 includes third openings 152 corresponding to the antenna electrodes 130 one-to-one, and the antenna electrodes 130 are disposed in the corresponding third openings 152 .

For the same reason as the above analysis about the display panel shown in FIG. 5 , the antenna electrode 130 is arranged on the surface of the support column 150 to ensure that the antenna electrode 130 is between adjacent light-emitting devices, thereby ensuring that the setting of the antenna electrode 130 will not have any problems. The light emission of the light emitting device is affected. Moreover, by setting the support column 150 to include the third opening 152, and the antenna electrode 130 is arranged in the third opening 152, the setting of the antenna electrode 130 can not increase the thickness of the display panel, thereby ensuring the lightness and thinness of the display panel.

In the above embodiments, the material of the support column 150 is an insulating material. In other embodiments of the present invention, the material of the support column 150 can also be a conductive material. When the material of the support column 150 is a conductive material, the support column 150 can be used as a conductive material. Antenna electrode 130 . Fig. 7 is a cross-sectional view of another display panel provided by an embodiment of the present invention, and Fig. 7 can correspond to the cross-sectional view taken along BB' of Fig. 1 . 7 , optionally, the support column 150 is used as the antenna electrode 130, and the material of the support column 150 is at least one of silver, aluminum, copper, molybdenum, titanium, indium tin oxide, zinc oxide, and indium zinc oxide.

By using the support column 150 as the antenna electrode 130, the antenna electrode 130 can be fabricated without additional steps, and further, during the formation of the display panel, there is no need to increase the process steps, thereby simplifying the fabrication process. It should be noted that, when the support column 150 is used as the antenna electrode 130, the different antenna electrodes 130 are disconnected to ensure that the antenna electrodes 130 are not short-circuited.

Continuing to refer to FIG. 5 to FIG. 7 , optionally, an insulating layer 160 is included on the side of the support column 150 away from the thin film transistor array layer 110, thereby ensuring good insulation between the antenna electrode 130 and the second electrode 123 of the light emitting device, The communication effect of the antenna electrode 130 and the light-emitting effect of the light-emitting device are guaranteed.

In the above embodiments, the antenna electrode 130 is disposed on the side of the second electrode 123 close to the thin film transistor array layer 110 . In other embodiments of the present invention, the antenna electrode 130 can also be disposed on the second electrode 123 away from the thin film transistor array layer 110 . 8 is a cross-sectional view of another display panel provided by an embodiment of the present invention, and FIG. 8 may correspond to a cross-sectional view taken along BB' in FIG. 1 . The antenna electrode 130 is disposed on the side of the second electrode 123 away from the thin film transistor array layer 110 , so that the process steps before forming the light emitting device layer 120 and forming the light emitting device layer 120 do not need to be changed. FIG. 8 schematically shows a structure including an insulating layer between the antenna electrode 130 and the second electrode 123. When forming the display panel, after the second electrode 123 is fabricated, one side of the second electrode 123 can be formed. An insulating layer is formed, and then the antenna electrode 130 is formed. However, the structure that the antenna electrode 130 can be disposed on the side of the second electrode 123 away from the thin film transistor array layer 110 is not limited to this, and the antenna electrode 130 can also be integrated in the touch module, and the touch module is externally attached to the display module The structure (including the thin film transistor array layer 110 and the light emitting device layer 120 ) is not specifically limited in this embodiment.

Fig. 9 is a cross-sectional view of another display panel provided by an embodiment of the present invention, and Fig. 9 may correspond to the cross-sectional view taken along BB' of Fig. 1 . Referring to FIG. 9 , optionally, the thin film transistor array layer 110 includes an array circuit layer 111 and a planarization layer 112 on the side of the array circuit layer 111 close to the light emitting device layer, and the antenna electrode 130 is disposed on the planarization layer 112 . Specifically, the surface of the planarization layer 112 away from the array circuit layer 111 may include grooves where the antenna electrodes are located in the grooves of the planarization layer 112 .

On the basis of the above technical solutions, optionally, the display panel further includes an encapsulation layer (not shown in the figure), and the encapsulation layer can be arranged on the side of the second electrode 123 away from the thin film transistor array layer 110; Etc. will cause erosion to the light-emitting device and prolong the service life of the display panel.

The technical solutions of the above embodiments provide several structures when the antenna electrode and the light-emitting device layer are located on the same side of the thin film transistor array layer. The antenna electrode can also be arranged in other film structures in the non-light-emitting area. When the functional layer is used, the antenna electrode can also be located in the touch functional layer, but the antenna electrode and the touch functional layer need to be insulated from each other.

1 , optionally, the antenna electrodes 130 are strip-shaped, and each antenna electrode 130 extends along the row direction x or the column direction y of the light-emitting device; due to the array arrangement of the light-emitting devices, the antenna electrodes 130 are arranged in a strip shape, The antenna electrode 130 can be conveniently disposed between adjacent light emitting devices. FIG. 10 is a top view of another display panel provided by an embodiment of the present invention. Referring to FIG. 10 , optionally, the antenna electrode 130 extends along the column direction y of the light emitting device, and the size of the antenna electrode 130 in the column direction y of the light emitting device is larger than or equal to the furthest distance between the first row to the last row of light-emitting devices. Because the signal related to the antenna electrode 130 must be drawn out or introduced through the antenna electrode lead 170, and the space in the display area is limited, and the antenna electrode 130 has been set, the space for the antenna electrode lead 170 in the display area will be insufficient, and the antenna is installed. If the size of the electrode 130 in the column direction y of the light-emitting device is greater than or equal to the farthest distance between the light-emitting devices in the first row to the last row, the antenna electrode lead 170 can be directly connected to the antenna electrode 130 on the non-display of the display panel, which is convenient for the antenna electrode The wiring arrangement of the leads 170 .

It should be noted that FIG. 10 only takes the example that the antenna electrode 130 extends along the column direction y of the light emitting device. When the antenna electrode 130 extends along the row direction x, the size of the antenna electrode 130 in the row direction x of the light emitting device is greater than or equal to Equal to the furthest distance between the first column to the last column of light-emitting devices.

FIG. 11 is a top view of another display panel provided by an embodiment of the present invention. Referring to FIG. 11 , optionally, the antenna electrodes 130 are in a grid shape, and in the thickness direction z of the display panel, the antenna electrodes 130 are on the thin film transistor array layer 110 The orthographic projection of the light emitting device surrounds the orthographic projection of the light emitting device on the thin film transistor array layer 110; and on the basis of ensuring that the antenna electrode 130 will not block the light emitted by the light emitting device and ensuring the normal line of the display panel, the antenna electrode 130 can have a larger The area is conducive to the realization of communication functions.

Optionally, the antenna electrode 130 spans at least one row of light-emitting devices or at least one column of light-emitting devices, and the row direction x of the light-emitting devices intersects with the column direction y of the light-emitting devices.

The antenna electrode 130 spans at least one row of light-emitting devices or at least one column of light-emitting devices, which may mean that the dimension x of the antenna electrode 130 in the light-emitting device row direction is greater than the farthest distance between two adjacent rows of light-emitting devices or the antenna electrode 130 is in the light-emitting device column direction The size of y is larger than the farthest distance between two adjacent columns of light-emitting devices, thereby ensuring that the antenna electrode 130 has a larger area. For example, for the display panel shown in FIG. 11 , the antenna electrode 130 spans a column of light-emitting devices, which can facilitate the arrangement of the antenna electrode leads. The principle is similar to that of the display panel shown in FIG.

12 is a top view of another display panel provided by an embodiment of the present invention, and FIG. 13 is a cross-sectional view of another display panel provided by an embodiment of the present invention. 12 and 13, on the basis of the above technical solution, optionally, the second electrode 123 includes an electrode portion 1231 and a hollow portion 1232, and the electrode portion 1231 covers at least the light-emitting layer 122 in the orthographic projection of the thin film transistor array layer 110. In the orthographic projection of the thin film transistor array layer 110 , the orthographic projection of the hollow portion 1232 on the thin film transistor array layer 110 overlaps with the orthographic projection of at least part of the antenna electrode 130 on the thin film transistor array layer.

Specifically, the electrode portion 1231 of the second electrode 123 covers the light-emitting layer 122, thereby ensuring that a completed light-emitting device can be formed. And the hollow part 1232 overlaps at least part of the antenna electrode 130, so that in the thickness direction z of the display panel, at least part of the area includes the antenna electrode 130 but not the second electrode 123, which can reduce the effect of the second electrode 123 on the antenna signal. The shielding effect can further improve the reliability of the antenna electrode 130 receiving the antenna signal. Also, as shown in FIG. 12 , when the general extending direction of the antenna electrode 130 is the column direction y of the light emitting device, the electrode part 1231 of the second electrode 123 may include a plurality of sub-electrode parts 12311 whose general extending direction is along the row direction x of the light emitting device , thereby making the overlapping area of the hollow portion 1232 of the second electrode 123 and the antenna electrode 120 larger, thereby further reducing the shielding effect of the second electrode 123 on the antenna signal, thereby improving the reliability of the antenna electrode 130 receiving the antenna signal. When the general extending direction of the antenna electrode 130 is the row direction x of the light emitting device, the electrode part 1231 of the second electrode 123 may include a plurality of sub-electrode parts 12311 whose general extending direction is along the column direction of the light emitting device.

Wherein, when forming the second electrode 123, the material of the second electrode 123 can be formed on the entire surface, and then a patterning process is used to remove part of the material of the second electrode 123 to form a hollow portion 1232, and the second electrode material that has not been removed is used as the electrode portion. 1231. For the display panel shown in FIG. 12, in order to further reduce the shielding effect of the second electrode 123 on the antenna signal, in each sub-electrode part 12311, the second electrode material at the position between the light-emitting devices can also be removed.

1, 10-12, optionally, the display panel further includes a non-display area NAA; the display panel further includes an antenna electrode lead 170, the antenna electrode lead 170 is at least partially arranged in the non-display area NAA, and the antenna electrode 130 is arranged In the display area AA; each antenna electrode 130 is respectively connected to two antenna electrode leads 170 , and the antenna electrode leads 170 connected to different antenna electrodes 130 are different.

Specifically, the display device including the display panel may include an antenna driver, and the antenna electrode lead 170 may connect the antenna electrode 130 and the antenna driver, and realize signal transmission between the antenna electrode 130 and the antenna driver through the antenna electrode lead 170, and the antenna electrode 130 , the antenna driver, and the two antenna electrode leads 170 connecting the two form an antenna loop. The antenna electrode leads 170 are at least partially located in the non-display area NAA, so that the area occupied by the antenna electrode leads 170 in the display area AA is small, so that the antenna electrodes 130 in the display area AA can have a larger arrangement space.

Optionally, the antenna electrode lead 170 and the antenna electrode 130 are disposed on the same layer, so that the antenna electrode lead 170 and the antenna electrode 130 can be fabricated in the same preparation process, which simplifies the preparation process.

The present invention also provides a display device. FIG. 14 is a schematic structural diagram of a display device provided by an embodiment of the present invention. Referring to FIG. 14 , the display device includes the display panel 10 provided in any of the above-mentioned embodiments of the present invention, and also includes a main board. 20. A display driver 30 and an antenna driver 40. The mainboard 20 is electrically connected to the display driver 30 and the antenna driver 40, respectively. Wherein, the antenna driver 40 can be electrically connected with the antenna electrode lead.

Optionally, the working process of the display device can be divided into two working stages: a display stage and an antenna working stage, wherein in the display stage, the main board 20 can control the antenna driver 40 to not work and control the display driver 30 to work, correspondingly, the antenna electrode Can not receive the signal of the antenna driver 40; in the antenna working stage, the main board 20 can control the antenna driver 40 to work and control the display driver 30 to not work, correspondingly, the antenna electrode can receive the signal of the antenna driver 40; control the display driver by time-sharing 30 and the antenna driver 40 work, which can avoid the mutual interference between the display driver 30 and the antenna driver 40, the mutual interference between the antenna electrode and the light emitting device in the panel, and the mutual interference between the antenna electrode lead and the display driving signal line.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention. The scope is determined by the scope of the appended claims.

Claims (12)

1. A display panel including a display region including a light-emitting region and a non-light-emitting region adjacent to the light-emitting region, the display panel comprising:

a thin film transistor array layer including a plurality of thin film transistors;

the light-emitting device layer comprises a plurality of light-emitting devices, each light-emitting device corresponds to one light-emitting area, and each light-emitting device comprises a first electrode, a light-emitting layer and a second electrode which are stacked in a direction from one side of the thin film transistor array layer to a direction far away from the thin film transistor array layer;

at least one antenna electrode, wherein the orthographic projection of the non-luminous area on the thin film transistor array layer covers the orthographic projection of the antenna electrode on the thin film transistor array layer;

the second electrode comprises an electrode part and a hollow part, the orthographic projection of the electrode part on the thin film transistor array layer at least covers the orthographic projection of the light emitting layer on the thin film transistor array layer, and the orthographic projection of the hollow part on the thin film transistor array layer is overlapped with the orthographic projection of at least part of the antenna electrode on the thin film transistor array layer.

2. The display panel according to claim 1, further comprising a pixel defining layer on one side of the thin film transistor array layer, the pixel defining layer including a plurality of first openings, and a body portion between the first openings, the antenna electrode being disposed on the body portion.

3. The display panel according to claim 2,

the surface of the body part, which is far away from the thin film transistor array layer, comprises grooves which are in one-to-one correspondence with the antenna electrodes, and the antenna electrodes are arranged in the corresponding grooves;

or, the pixel defining layer includes second openings corresponding to the antenna electrodes one to one, and the antenna electrodes are disposed in the corresponding second openings.

4. The display panel according to claim 3, wherein a material of the antenna electrode is the same as a material of the first electrode.

5. The display panel according to claim 3, further comprising a supporting pillar on a side of the body portion away from the thin film transistor array layer;

the support column comprises a bottom structure covering the antenna electrode and a top structure protruding out of the bottom structure, and the size of the top structure is smaller than that of the bottom structure in the direction of connecting lines of adjacent light-emitting devices.

6. The display panel according to claim 2, further comprising a supporting pillar on a side of the body portion away from the thin film transistor array layer;

the surface, far away from the thin film transistor array layer, of the supporting column comprises grooves corresponding to the antenna electrodes one to one, and the antenna electrodes are arranged in the corresponding grooves;

or the support column comprises third openings corresponding to the antenna electrodes one by one, and the antenna electrodes are arranged in the corresponding third openings.

7. The display panel according to claim 2, further comprising a supporting pillar on a side of the body portion away from the thin film transistor array layer;

the support column is used as the antenna electrode, and the support column is made of at least one of silver, aluminum, copper, molybdenum, titanium, indium tin oxide, zinc oxide and indium zinc oxide.

8. The display panel according to claim 1, wherein the antenna electrode is disposed on the same layer as the first electrode and located between at least a portion of the first electrode;

or the antenna electrode is positioned on one side of the second electrode far away from the thin film transistor array layer;

or, the thin film transistor array layer comprises an array circuit layer and a planarization layer on one side of the array circuit layer close to the light-emitting device layer, and the antenna electrode is arranged on the planarization layer.

9. The display panel according to claim 1, wherein the antenna electrodes are stripe-shaped, and each of the antenna electrodes extends in a row direction or a column direction of the light emitting device;

or the antenna electrode is in a grid shape, and the orthographic projection of the antenna electrode on the thin film transistor array layer surrounds the orthographic projection of the light-emitting device on the thin film transistor array layer;

the row direction of the light emitting devices intersects the column direction of the light emitting devices.

10. The display panel according to claim 9, wherein the antenna electrode spans at least one row of the light emitting devices or at least one column of the light emitting devices.

11. The display panel according to claim 1, wherein the display panel further comprises a non-display region;

the display panel further comprises an antenna electrode lead, at least part of the antenna electrode lead is arranged in the non-display area, and the antenna electrode is arranged in the display area; each antenna electrode is respectively and correspondingly connected with two antenna electrode leads, and the antenna electrode leads connected with different antenna electrodes are different.

12. The display panel according to claim 11, wherein the antenna electrode lead is provided in the same layer as the antenna electrode.

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