CN111857430B - Display panels and display devices - Google Patents

Abstract

This application discloses a display panel and a display device. The display panel includes a display area, a non-display area, a touch unit and an antenna unit. The display area corresponds to the area where the pixels are located, and the non-display area is adjacent to the display area; the touch unit is provided in the non-display area, and the touch unit includes a first touch unit and a second touch unit; the antenna unit is provided with the first touch unit Inside; multiple antenna units are connected to each other to form an antenna pattern, which is used for signal transmission and reception. In the display panel and display device of the embodiment of the present application, an antenna unit is provided in the touch unit in the non-display area, and multiple antenna units form an antenna pattern, so that the antenna pattern is divided into parts, so that the touch unit can realize the touch function at the same time. , the signal transmission and reception of the antenna can also be carried out normally, thereby realizing the touch function and the antenna function at the same time.

Description

Display panels and display devices

Technical field

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

Background technique

In the current solutions equipped with in-screen antenna graphics and process design, due to the transmittance problem of the monolithic design of the antenna graphics, the current full-screen display adopts a grid design, that is, the graphics are designed around the pixel light-emitting area; although the grid design can solve There is a transmittance problem, but the grid design is in the antenna pattern area and the touch function cannot be implemented, which affects the overall use of the mobile phone.

Contents of the invention

Embodiments of the present application provide a display panel and a display device.

The display panel in the embodiment of the present application includes a display area, a non-display area, a touch unit and an antenna unit. The display area corresponds to the area where the pixels are located, and the non-display area is adjacent to the display area; the touch unit is arranged in the non-display area, and the touch unit includes a first touch unit and a second touch unit; The antenna unit is arranged in the first touch unit; a plurality of the antenna units are connected to each other to form an antenna pattern, and the antenna pattern is used for transmitting and receiving signals.

The display device of this application includes a chassis and a display panel. The display panel is arranged on the casing. The display panel includes a display area, a non-display area, a touch unit and an antenna unit. The display area corresponds to the area where the pixel is located; the touch unit is provided in the non-display area, and the touch unit includes a first touch unit and a second touch unit; the antenna unit is provided with the third touch unit. In a touch unit, multiple antenna units are connected to each other to form an antenna pattern, and the antenna pattern is used for signal transmission and reception.

In the display panel and display device of the embodiment of the present application, an antenna unit is provided in the touch unit in the non-display area, and multiple antenna units form an antenna pattern, so that the antenna pattern is divided into parts, so that the touch unit can realize the touch function at the same time. , the signal transmission and reception of the antenna can also be carried out normally, thereby realizing the touch function and the antenna function at the same time.

Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the application.

Description of the drawings

The above and/or additional aspects and advantages of the embodiments of the present application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a schematic plan view of a display panel according to some embodiments of the present application.

Figure 2 is a schematic plan view of a touch unit and an antenna unit in some embodiments of the present application.

FIG. 3 is a partial plan view of a display panel according to certain embodiments of the present application.

FIG. 4 is a schematic plan view of a display panel according to some embodiments of the present application.

Figure 5 is a schematic structural diagram of a display panel according to certain embodiments of the present application.

FIG. 6 is a schematic plan view of a display device according to certain embodiments of the present application.

Detailed ways

The embodiments of the present application will be further described below with reference to the accompanying drawings. The same or similar numbers throughout the drawings represent the same or similar elements or elements with the same or similar functions.

In addition, the embodiments of the present application described below in conjunction with the drawings are exemplary and are only used to explain the embodiments of the present application and cannot be understood as limiting the present application.

In this application, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

Referring to FIGS. 1 and 2 , the display panel 10 in the embodiment of the present application includes a display area 11 , a non-display area 12 , a touch unit 13 and an antenna unit 14 . The display area 11 corresponds to the area where the pixel P is located. The non-display area 12 is adjacent to the display area 11. The touch unit 13 is provided in the non-display area 12. The touch unit 13 includes a first touch unit 131 and a second touch unit 132. ; The antenna unit 14 is arranged in the first touch unit 131; multiple antenna units 14 are connected to each other to form an antenna pattern T, and the antenna pattern T is used for signal transmission and reception.

Among them, the display area 11 is used to display through the light emitted by the pixels P, and the non-display area 12 corresponds to the area between the pixels P. This area is not directly opposite to the pixels P, so it does not need to transmit light and can be used to set up touch controls. The unit 13 and the antenna unit 14, and the touch unit 13 and the antenna unit 14 provided in the non-display area 12 will not block the light emitted by the pixel P, thus ensuring that the display effect is not affected.

The touch unit 13 includes a first touch unit 131 with an antenna unit 14 and a second touch unit 132 without the antenna unit 14; the touch unit 13 is spread throughout the non-display area 12 to achieve touch control at various positions of the display panel 10 function, and the antenna unit 14 only needs to form an antenna pattern T to realize the antenna function. There is no need to provide an antenna unit 14 in each touch unit 13, which can reduce the difficulty of manufacturing the display panel 10.

The display panel 10 in the embodiment of the present application sets the antenna unit 14 in the touch unit 13 of the non-display area 12, and multiple antenna units 14 form an antenna pattern T, so that the antenna pattern T is divided into parts, so that the touch unit 13 realizes While the touch function is enabled, the signal transmission and reception of the antenna can also be carried out normally, thereby realizing the touch function and the antenna function at the same time.

Please refer to FIG. 3 . In some embodiments, the non-display area 12 includes a dummy area 121 surrounding the edge of the pixel P and a gap area 122 adjacent to the dummy area 121 . The touch unit 13 is disposed in the dummy area 121 and/or the gap area. 122.

Specifically, the non-display area 12 includes a dummy area 121 surrounding the edge of the pixel P and a gap area 122 adjacent to the dummy area 121. The dummy area 121 is closer to the area where the pixel P is located. As the pixel density increases, in a single pixel P Under the condition that the area of the gap region 122 remains unchanged, the area of the gap area 122 will become smaller and smaller. When the area of the gap area 122 is large enough, the gap area 122 can be used to arrange part or all of the touch units 13 in the gap area 122 , thereby eliminating the need to arrange all the touch units 13 in the dummy area 121 , ensuring that the dummy area 121 The realization of its own functions. Or when the area of the gap area 122 is too small to install the touch unit 13, arranging the touch unit 13 in the dummy area 121 is beneficial to increasing the pixel density.

Please refer to FIGS. 2 and 4 . In some embodiments, the display panel 10 includes a first pixel area 15 and a second pixel area 16 . The first pixel area 15 is the central area of the display panel 10 , and the second pixel area 16 is In the edge area of the display panel 10, the first touch unit 131 is disposed in the second pixel area 16.

Specifically, the first touch unit 131 including the antenna unit 14 can be disposed in the second pixel area 16 located at the edge of the display panel 10. Since the edge area is less interfered by the display device 100, it is beneficial to improve the antenna unit 14. The antenna pattern T consists of the signal transmitting and receiving performance.

The first touch unit 131 can be disposed in the dummy area 121 and/or the gap area 122 of the second pixel area 16. The specific installation position of the first touch unit 131 can be based on the pixel density of the second pixel area 16 (ie, the second The area of the gap area 122 of the pixel area 16 is determined. For example, the first touch unit 131 can be disposed in the dummy area 121 of the second pixel area 16; or, the first touch unit 131 can be disposed in the gap area 122 of the second pixel area 16; or, the first touch unit 131 Can be disposed in the dummy area 121 and gap area 122 of the second pixel area 16 , that is, a part of the first touch unit 131 can be disposed in the dummy area 121 of the second pixel area 16 , and another part of the first touch unit 131 can be disposed in the dummy area 121 of the second pixel area 16 . The gap area 122 of the second pixel area 16 .

Referring to FIGS. 2 to 4 , in some embodiments, the display panel 10 includes a first pixel area 15 and a second pixel area 16 . The pixel density of the first pixel area 15 is greater than the pixel density of the second pixel area 16 . A touch unit 131 is disposed in the gap area 122 in the second pixel area 16 .

Specifically, the display panel 10 is divided into a first pixel area 15 with a higher pixel density and a second pixel area 16 with a lower pixel density, and then the first touch unit 131 provided with the antenna unit 14 is arranged in a higher pixel density area. At this time, since the pixel density of the second pixel area 16 is low and the area of the gap area 122 is larger, there is no need to use the dummy area 121 to set the first touch unit 131, thus ensuring that the second pixel area 16 has a lower pixel density. Realization of the function of dummy area 121 in pixel area 16.

The size, position and number of the first pixel area 15 and the second pixel area 16 are determined according to the installation position and area of the antenna pattern T and the specific design requirements of the display panel 10, and are not limited here.

Referring to FIG. 2 and FIG. 4 , in some embodiments, there are two second pixel areas 16 , and the two second pixel areas 16 are located on both sides of the first pixel area 15 .

Specifically, the antenna is generally provided at the edge of the display device 100 (such as a mobile phone, as shown in FIG. 6 ), for example, the antenna is provided at the upper and lower ends of the display device 100; or the antenna is provided at the left and right ends of the display device 100; or Antennas are provided at the upper, lower, left, and right ends of the display device 100 . In this embodiment, there is one first pixel area 15, and the number of the second pixel areas 16 of the antenna pattern T composed of the antenna unit 14 is two, which are respectively arranged on both sides of the first pixel area 15, such as the first pixel The upper and lower sides of the area 15 (corresponding to the length direction of the display device 100), or the left and right sides of the first pixel area 15 (corresponding to the width direction of the display device 100). In this way, the antenna pattern T is disposed in the second pixel area 16 located on both sides of the first pixel area 15. Compared with the antenna pattern T being disposed in the first pixel area 15 located in the central area of the display device 100, the second pixel area 16 Being closer to the edge of the display device 100 means less interference from the display device 100 , which is beneficial to improving the signal transmission and reception performance of the antenna pattern T composed of the antenna unit 14 .

Please refer to FIG. 2 again. In some embodiments, the first touch unit 131 includes a clear area 1311 and a touch trace 1312 surrounding the clear area 1311. The antenna unit 14 is disposed in the clear area 1311.

Specifically, in order to prevent interference between the first touch unit 131 and the antenna unit 14 disposed therein, a clearance area 1311 is provided in the first touch unit 131 and the antenna unit 14 is provided in the clearance area 1311 so that A certain spatial interval is formed between the antenna unit 14 and the touch traces 1312 on the periphery of the clearance area 1311, thereby reducing interference between the touch traces 1312 of the first touch unit 131 and the antenna unit 14 in the clearance area 1311.

Please refer to FIG. 2 again. In some embodiments, an anti-interference structure 1313 is also provided in the clearance area 1311. The anti-interference structure 1313 surrounds the antenna unit 14 to isolate interference between the touch trace 1312 and the antenna unit 14.

Specifically, in order to further prevent interference between the touch traces 1312 and the antenna unit 14, an anti-interference structure 1313 is provided in the clearance area 1311, and the anti-interference structure 1313 surrounds the antenna unit 14 to isolate the touch traces 1312 and the antenna unit. For example, as shown in FIG. 2 , the anti-interference structure 1313 is a circular metal layer surrounding the antenna unit 14 . In this way, the anti-interference structure 1313 can effectively isolate the interference between the antenna unit 14 and the touch trace 1312, ensuring the stability of the touch and improving the signal transmission and reception capabilities of the antenna pattern T.

Please refer to FIGS. 2 and 5 . In some embodiments, the display panel 10 includes a first circuit layer 17 and a second circuit layer 18 . The touch unit 13 and the antenna unit 14 are disposed on the second circuit layer 18 . The antenna unit 14 It includes an antenna receiving unit 141 and an antenna transmitting unit 142. The first circuit layer 17 forms a first connection line 171 to connect the touch unit 13 corresponding to the antenna transmitting unit 142. The first circuit layer 17 also forms a second connection line 172 to connect the antenna. Unit 14, the second circuit layer 18 forms a third connection line 181 to connect the touch unit 13 corresponding to the antenna receiving unit 141.

Specifically, along the direction vertical to the display panel 10 , the display panel 10 includes a stacked pixel layer 19 , a first circuit layer 17 and a second circuit layer 18 . The first circuit layer 17 is closer to the pixel layer 19 than the second circuit layer 18 . . The area corresponding to the non-display area 12 in the second circuit layer 18 is used to set the touch unit 13 and the antenna unit 14. The antenna unit 14 includes an antenna receiving unit 141 and an antenna transmitting unit 142. The antenna receiving unit 141 is used to receive signals, and the antenna transmits Unit 142 is used to transmit signals.

A partial arrangement diagram of the touch units 13 is shown in Figure 2. The touch units 13 in the odd-numbered rows are used to set the antenna transmitting units 142, and the touch units 13 in the even-numbered rows are used to set the antenna receiving units 141, that is, the antenna transmitting units. 142 and the antenna receiving unit 141 are arranged alternately.

The first circuit layer 17 forms a first connection line 171 to connect all the touch units 13 in each even-numbered column such as the second column, the fourth column, the sixth row, etc. The first circuit layer 17 also forms a second connection line 172 to connect All the antenna units 14 are connected, so that the antenna units 14 are connected into an antenna pattern T, such as an inverted "T" shape pattern as shown in FIG. 2 .

The lengths of different positions of the antenna pattern T have strict restrictions. In Figure 2, the lengths Wa, La, Ls, Lg, Wg and S all need to be determined according to the actual design requirements of the antenna. When determining the lengths Wa, La, Ls, Lg, After Wg and S, the position of the touch unit 13 (ie, the first touch unit) used to set the antenna unit 14 can be determined.

The second circuit layer 18 forms a third connection line 181 to connect all the touch units 13 in each even-numbered row such as the second row, the fourth row, the sixth row, and so on.

Optical glue can also be disposed between the first circuit layer 17 and the second circuit layer 18 to prevent the first circuit layer 17 and the second circuit layer 18 from contacting.

In this way, the display panel 10 forms the "first connection line 171 and the second connection line 172" and the "third connection line 181" on the first circuit layer 17 and the second circuit layer 18 respectively, so that the "first connection line 171 and The second connection line 172" and the third connection line 181" will not come into contact, and the wiring space of the first circuit layer 17 is large, which can facilitate the arrangement of the second connection line 172 and the third connection line 181.

Referring to FIGS. 1 and 2 , in some embodiments, when the display panel 10 receives a touch operation, the capacitance between the touch traces 1312 of adjacent touch units 13 changes to generate a touch signal.

Specifically, when the display panel 10 receives a touch operation (such as the user pressing the display panel 10), the capacitance between the touch traces 1312 of the touch unit 13 at the pressed position will change and a touch signal will be generated. After obtaining the touch signal, the position pressed by the user can be determined, thereby realizing the touch function.

Referring to FIG. 2 , in some embodiments, the number of antenna units 14 is determined according to performance parameters of the antenna pattern T, and the performance parameters include gain.

Specifically, according to different performance requirements of the antenna, the corresponding performance parameters are also different. After the performance parameters are determined according to the required antenna performance, as the performance parameters change, the number of antenna units 14 changes accordingly. For example, as the gain increases, the number of antennas increases to achieve greater gain. It can be understood that in other implementations, the performance parameters of the antenna may also include input impedance, polarization mode, etc., and the number of antenna units 14 may be accurately determined according to specific performance parameters.

Referring to FIG. 1 , FIG. 2 and FIG. 6 , the display device 100 in the embodiment of the present application includes a chassis 20 and a display panel 10 . The display panel 10 is provided on the casing 20 . Specifically, the display device 100 may be an electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, a smart bracelet, a smart watch, or other wearable devices. In the embodiment shown in FIG. 1 , the display device 100 is a mobile phone.

The casing 20 can be used to install the display panel 10 , or in other words, the casing 20 can be used as an installation carrier for the display panel 10 . The display device 100 includes a front and a back opposite to each other. There is one display panel 10 , which can be disposed on the front. There can also be multiple display panels 10 , which can be disposed on both the front and the back. In the embodiment of the present application, the display panel 10 is disposed on the front. The casing 20 can also be used to install functional modules such as the power supply device and communication device of the display device 100. After the casing and the display panel 10 are installed together, a closed receiving space is formed to accommodate the power supply device, communication device and other functional modules. The module provides protection against dust, drops, and water.

The display panel 10 and the display device 100 in the embodiment of the present application provide the antenna unit 14 in the touch unit 13 of the non-display area 12, and multiple antenna units 14 form an antenna pattern T, so that the antenna pattern T is divided into parts, so that the touch While the control unit 13 realizes the touch function, the signal transmission and reception of the antenna can also be carried out normally. Compared with the existing process, the touch unit and the antenna unit each occupy a part of the display area, resulting in the display area where the antenna unit is located unable to be processed. For touch control, the display area where the touch control unit is located cannot realize the antenna function. The display panel 10 of the present application can simultaneously realize the touch function and the antenna function in the entire display area without adding any process or mask. And the casing can play a certain protective role on the display panel 10 .

In the description of this specification, reference is made to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples." By description it is meant that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one feature. In the description of this application, "plurality" means at least two, such as two or three, unless otherwise expressly and specifically limited.

Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and cannot be understood as limitations of the present application. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present application. The embodiments are subject to changes, modifications, substitutions and variations, and the scope of the application is defined by the claims and their equivalents.

Claims (8)

1. A display panel, the display panel comprising:

a display region corresponding to a region where a pixel is located and a non-display region adjacent to the display region;

the touch control unit is arranged in the non-display area and comprises a first touch control unit and a second touch control unit; and

The antenna unit is arranged in the first touch unit; a plurality of the antenna units are connected with each other to form an antenna pattern for transmitting and receiving signals;

the first touch unit comprises a clearance area and a touch wire surrounding the clearance area, and the antenna unit is arranged in the clearance area;

the display panel comprises a first circuit layer and a second circuit layer, the touch control unit and the antenna unit are arranged on the second circuit layer, the antenna unit comprises an antenna receiving unit and an antenna transmitting unit, the first circuit layer forms a first connecting wire to be connected with the touch control unit corresponding to the antenna transmitting unit, the first circuit layer also forms a second connecting wire to be connected with the antenna unit, and the second circuit layer forms a third connecting wire to be connected with the touch control unit corresponding to the antenna receiving unit.

2. The display panel according to claim 1, wherein the non-display region includes a dummy region surrounding the pixel edge and a gap region adjacent to the dummy region, and the touch unit is disposed in the dummy region and/or the gap region.

3. The display panel of claim 2, wherein the display panel comprises a first pixel region and a second pixel region, the first pixel region having a pixel density greater than a pixel density of the second pixel region, the first touch unit being disposed in the gap region within the second pixel region.

4. A display panel according to claim 3, wherein the number of second pixel areas is two, and the two second pixel areas are located at both sides of the first pixel area.

5. The display panel of claim 1, wherein an anti-interference structure is further disposed in the headroom region, the anti-interference structure surrounding the antenna element to isolate interference between the touch trace and the antenna element.

6. The display panel according to claim 1, wherein when the display panel receives a touch operation, a capacitance between the touch traces of adjacent touch units changes to generate a touch signal.

7. The display panel of claim 1, wherein the number of antenna elements is determined based on a performance parameter of the antenna pattern, the performance parameter comprising a gain.

8. A display device comprising a chassis and the display panel of any one of claims 1-7, the display panel being disposed on the chassis.