DISPLAY FIELD AND DISPLAY DEVICE

By locating the sensor antenna within the display area and covering its coils with intersecting lines, the efficiency of wireless charging and near-field communication is improved in display panels without compromising display quality.

DE102016124333B4Active Publication Date: 2025-01-02SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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Patent Information

Application Number
DE102016124333
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2016-06-30
Filing Date
2016-12-14
Publication Date
2025-01-02
Estimated Expiration
2036-12-14

AI Technical Summary

Technical Problem

Existing display panels face low conversion efficiency of sensor antennas due to their limited size and number of coil turns, primarily located in the edge area, which affects the efficiency of wireless charging and near-field communication.

Method used

The sensor antenna is partially or fully located within the display area, with intersecting data and scan lines defining subpixels, and its coils are covered by projections of these lines perpendicular to the panel surface, increasing the antenna's area and number of coils without affecting the aperture ratio.

Benefits of technology

This configuration enhances the conversion efficiency of the sensor antenna while maintaining the display panel's performance by increasing the sensor coil count and optimizing coil placement.

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Abstract

Display field, including: Data lines (10) and scanning lines (20) intersecting each other and arranged in a display area (100) of the display field, wherein the data lines (10) and the scanning lines (20) define a plurality of subpixels (30); and a sensor antenna (40) comprising a plurality of sensor coils (41) and arranged at least partially in the display area (100) of the display field, wherein projections of the sensor coils (41) within the projections of the data lines (10) and / or the scanning lines (20) in the display area (100) of the display field are arranged in a direction perpendicular to a surface of the display field.
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Description

AREA

[0001] The present invention relates to the technical field of display and, in particular, to a display panel and a display device. BACKGROUND

[0002] With technological advancements, wireless charging and near-field communication (NFC) technologies are increasingly being used in display panels. Wireless charging involves winding a wire into a coil to excite a power-supplying end and a power-receiving end according to the principle of electromagnetic induction, enabling charging. Near-field communication involves exciting a signal-transmitting end and a signal-receiving end according to the principle of electromagnetic induction, which is widely used in card payments and data transmission.

[0003] It follows that both wireless charging and near-field communication technologies are implemented according to the principle of electromagnetic induction by winding a wire into a coil that acts as a sensor antenna. However, in an existing display panel, a sensor antenna is usually located in a peripheral area of ​​the display panel. Although the volume of the display panel is reduced, the number of coil windings is small due to the limitations of the peripheral area, resulting in low conversion efficiency of the sensor antenna.

[0004] DE 10 2014 114 128 A1 discloses an electromagnetic inductive touch pad including a plurality of first wires, a plurality of second wires, and a plurality of electromagnetic induction coils at intersections of the first wires and the second wires.

[0005] DE 10 2015 011 251 A1 describes a display that includes a transparent cover glass, pixels that emit light through the cover glass, and a plurality of antennas arranged along corresponding paths in an inactive region between the pixels.

[0006] US 2014 / 0049882 A1 shows a display with a wireless charging function, which comprises a first substrate, an induction coil layer, a display pixel layer and a second substrate, wherein a plurality of induction coils are arranged in the induction coil layer. SUMMARY

[0007] In order to solve the above-mentioned technical problem, a display panel according to the embodiments in the present invention is provided to improve the conversion efficiency of the sensor antenna.

[0008] To address the above problem, technical solutions according to the embodiments in the present invention are provided as follows.

[0009] A display panel comprises data lines and scanning lines arranged in a cross-sectional manner, and a sensor antenna. The intersecting data lines and scanning lines are located in a display area of ​​the display panel and define a plurality of subpixels. The sensor antenna comprises a plurality of sensor coils and is located at least partially in the display area of ​​the display panel. Projections of the sensor coils are arranged within the projections of the data lines and / or the scanning lines in the display area of ​​the display panel in a direction perpendicular to a surface of the display panel.

[0010] A display device comprises the aforementioned display panel.

[0011] The above-mentioned technical solutions have the following advantages over conventional technology.

[0012] The display panel provided according to embodiments of the present invention includes intersecting data lines and scanning lines, and the sensor antenna. The intersecting data lines and scanning lines are located in the display area of ​​the display panel and define the plurality of subpixels. The sensor antenna includes a plurality of sensor coils and is located at least partially in the display area of ​​the display panel to increase the area occupied by the sensor antenna and the number of sensor coils that can be accommodated in the display panel, thereby improving the conversion efficiency of the sensor antenna.Furthermore, in the display panel provided according to the embodiments in the present invention, the projections of the data lines and / or the scanning lines cover the projections of the sensor coils in the direction perpendicular to the surface of the display panel to prevent the aperture ratio of the display panel from being affected by the sensor coils arranged in the display area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings required to explain the embodiments or conventional technology are briefly described below to clarify the technical solutions according to the embodiments in the present invention or according to conventional technology. It is obvious that the accompanying drawings in the following descriptions show only some embodiments in the present invention. Those skilled in the art can obtain other accompanying drawings without any creative effort based on these accompanying drawings. Fig. 1 shows a plan view of an arrangement of scan lines and data lines in a display panel according to an embodiment of the present invention; Fig. 2 shows a plan view of a sensor antenna in a display panel according to an embodiment of the present invention; Fig. 3 shows a cross-sectional view of the Fig. 1 shown arrangement along a direction AB in Fig. 1; Fig. 4 shows a cross-sectional view of the Fig. 1 shown arrangement along a direction CD in Fig. 1; Fig. 5 shows a plan view of a sensor antenna in a display panel according to an embodiment of the present invention; Fig. 6 shows a plan view of a sensor antenna in a display panel according to an embodiment of the present invention; Fig. 7 shows a schematic diagram of an electrical connection between a sensor antenna and a drive circuit in a display panel according to an embodiment of the present invention; Fig. 8 shows a schematic diagram of an electrical connection between a sensor antenna and a drive circuit in a display panel according to an embodiment of the present invention; Fig. 9 shows a cross-sectional view of an array substrate and a color film substrate in a display panel according to an embodiment of the present invention; Fig. 10 shows a schematic representation of an electrical connection between scan lines, data lines and subpixels in a display panel according to an embodiment of the present invention; Fig. 11 shows a cross-sectional view of a structure of a film transistor in the Fig. 10 shown display field; Fig. 12 shows a cross-sectional view of a display panel according to an embodiment of the present invention; Fig. 13 shows a cross-sectional view of a display panel according to an embodiment of the present invention; Fig. 14 shows a cross-sectional view of a display panel according to an embodiment of the present invention; Fig. 15 shows a cross-sectional view of another structure of a film transistor in the Fig. 10 shown display field; Fig. 16 shows a cross-sectional view of a color film substrate in a display panel according to an embodiment of the present invention; Fig. 17 is a schematic diagram showing a relative positional relationship between a color film substrate and a sensor antenna in a display panel according to an embodiment of the present invention; and Fig. 18 shows a schematic structural diagram of a display device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The technical solution is described clearly and completely as follows with reference to the accompanying drawings for the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments. All other embodiments that become apparent to a person skilled in the art based on the embodiments of the present invention without any creative effort fall within the scope of the present invention.

[0015] For a thorough understanding of the invention, more specific details are set forth in the following descriptions. The invention may be practiced otherwise than as described herein. Those skilled in the art may make similar modifications without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments described below.

[0016] According to one embodiment of the present invention, a display panel as shown in Fig. 1 to Fig. 4 is provided as an illustration. Fig. 1 shows a plan view of an arrangement of scan lines and data lines in a display panel according to an embodiment of the present invention. Fig. 2 shows a plan view of a sensor antenna in a display panel according to an embodiment of the present invention. Fig. 3 shows a cross-sectional view of the Fig. 1 shown arrangement along a direction AB in Fig. 1. Fig. 4 shows a cross-sectional view of the Fig. 1 shown arrangement along a direction CD in Fig. 1.

[0017] The display panel comprises data lines 10 and scanning lines 20 arranged so as to cross each other. As shown in Fig. 1, the intersecting data lines 10 and scanning lines 20 are located in a display area 100 of the display panel and define a plurality of subpixels 30.

[0018] The display panel further comprises a sensor antenna 40. As in Fig. 2, the sensor antenna 40 comprises a plurality of sensor coils 41 and the sensor antenna 40 is located at least partially in the display area 100 of the display panel. As shown in Fig. 3 and Fig. 4, projections of the data lines 10 and / or the scanning lines 20 cover projections of the sensor coils 41 in a direction perpendicular to a surface of the display panel.

[0019] It should be noted that in the above embodiment, the manner in which the sensor antenna 40 is at least partially arranged in the display area 100 of the display panel may include the manner in which the sensor antenna 40 is entirely arranged in the display area 100 of the display panel (as in Fig. 2), and may further include a manner in which the sensor antenna 40 is partially arranged in the display area 100 of the display panel, which is not limiting in the present invention and may be determined by practical requirements.

[0020] It should also be noted that in the above embodiment, the manner in which the sensor antenna 40 is partially arranged in the display area 100 of the display panel may include a manner in which a part of the sensor coils 41 in the sensor antenna 40 is arranged in the display area 100 of the display panel and the other part of the sensor coils 41 is arranged in a peripheral area 200 of the display panel, as shown in Fig. 5, which illustrates a plan view of a sensor antenna in a display panel according to an embodiment of the present invention. Furthermore, a manner in which a part of each of the sensor coils 41 in the sensor antenna 40 is arranged in the display area 100 of the display panel and the other part of each of the sensor coils 41 is arranged in the edge area 200 of the display panel, as shown in Fig. 6 is shown, which illustrates a plan view of a sensor antenna in a display panel according to an embodiment of the present invention, which is not limitative of the present invention and may be determined by practical requirements.

[0021] In each of the above embodiments, the definition that the projections of the data lines 10 and / or the scanning lines 20 cover the projections of the sensor coils 41 in the direction perpendicular to the surface of the display panel refers to the projections of the data lines 10 and / or the scanning lines 20 covering the projections of the sensor coils 41 in the display area 100 of the display panel in the direction perpendicular to the surface of the display panel. Specifically, the manner in which the projections of the data lines 10 and / or the scanning lines 20 cover the projections of the sensor coils 41 in the display area 100 of the display panel in the direction perpendicular to the surface of the display panel may include a manner in which the projections of the data lines 10 and / or the scanning lines 20 exactly overlap the projections of the sensor coils 41 in the display area 100 of the display panel in a direction perpendicular to the surface of the display panel.and may further comprise a manner in which the projections of the data lines 10 and / or the scanning lines 20 are larger than the projections of the sensor coils 41 in the display area 100 of the display panel in the direction perpendicular to the surface of the display panel, which is not limiting in the present invention as long as the projections of the sensor coils 41 are located within the projections of the data lines 10 and / or the scanning lines 20 in the display area 100 of the display panel in the direction perpendicular to the surface of the display panel.

[0022] Starting from one of the above embodiments, the sensor antenna 40 comprises in embodiments as in Fig. 7 and Fig. 8, each of which is a schematic representation of an electrical connection between a sensor antenna and a drive circuit in a display panel according to an embodiment of the present invention, includes a first conductor 42 at one end of the sensor antenna and a second conductor 43 at the other end of the sensor antenna. The first conductor 42 is located in a different layer than the sensor coils 41 and is overlapped by each of the sensor coils 41 in the sensor antenna 40. The second conductor 43 is located in the same layer as the sensor coils 41 and is not overlapped by any of the sensor coils 41 in the sensor antenna 40.

[0023] It should be noted that in the above-mentioned embodiments, as in Fig. 7 and Fig. 8, the first conductor 42 and the second conductor 43 are electrically connected to a drive circuit 50. The drive circuit 50 is configured to provide a drive signal to the sensor antenna 40 and to detect a current signal in the sensor antenna 40 through the first conductor 42 and the second conductor 43.

[0024] It should be noted that in an embodiment based on any of the above-mentioned embodiments, a portion of the conductors at each end of the sensor antenna 40 that are overlapped by the sensor coils 41 are located as shown in Fig. 8, is located in the edge region 200 of the display panel if one part of the sensor antenna 40 is located in the display area 100 of the display panel and the other part of the sensor antenna 40 is located in the edge region 200 of the display panel. In the above embodiment, in which the part of the first conductor 42 overlapped by the sensor coils 41 is located in the edge region 200 of the display panel, the technical solution is not limited to this. In another embodiment, the part of the conductors at each end of the sensor antenna 40 overlapped by the sensor coils 41 may be located entirely in the display area 100 of the display panel or partially in the display area 100 of the display panel and partially in the edge region 200 of the display panel, as in Fig. 7, which is determined by practical requirements.

[0025] Optionally, in the above embodiments, the first conductor 42 is electrically connected to the sensor coils 41 via a through-hole if the first conductor 42 is located in a different layer than the sensor coils 41.

[0026] In an embodiment based on any of the above embodiments, as in Fig. As shown in Figure 9, which is a cross-sectional view of an array substrate and a color film substrate in a display panel according to the embodiment, the display panel includes an array substrate 300 and a color film substrate 400 arranged opposite each other. The data lines 10 and the scanning lines 20 are located in the array substrate 300, and the sensor antenna 40 is integrated into the array substrate 300 or the color film substrate 400.

[0027] In an embodiment based on any of the above embodiments, as in Fig. 10, which is a schematic diagram of an electrical connection between scanning lines, data lines, and subpixels in a display panel according to the embodiment, the array substrate 300 further includes film transistors 60 electrically connected to the data lines 10 and the scanning lines 20.

[0028] Gate electrodes g of the film transistors 60 are electrically connected to the scan lines 20, and source electrodes s or drain electrodes d of the film transistors 60 are electrically connected to the data lines 10. The film transistors 60 are configured to control the display of the subpixels 30. If the source electrodes s of the film transistors 60 are electrically connected to the data lines 10, the drain electrodes d of the film transistors 60 are electrically connected to the pixel electrodes of the corresponding subpixels 30. If the drain electrodes d of the film transistors 60 are electrically connected to the data lines 10, the source electrodes s of the film transistors 60 are electrically connected to the pixel electrodes of the corresponding subpixels 30.It should be noted that the source electrodes s and drain electrodes d of the film transistors 60 merely represent input terminals and output terminals of the film transistors 60, without any strict correspondence. All that is required is that when the film transistors 60 are turned on, signals in the data lines 10 can be input via the input terminals of the film transistors 60 and output via the output terminals of the film transistors 60. Preferably, the source electrodes s and drain electrodes d of the film transistors 60 are located in the same layer.

[0029] In an embodiment based on the above-mentioned embodiments, as in Fig. 11, which is a cross-sectional view of a structure of a film transistor in the display panel of Fig. As shown in FIG. 10, the gate electrode g of the film transistor 60 is located on a side of the source electrode s and the drain electrode d of the film transistor 60 facing the color film substrate 400. In the embodiment, a light-shielding layer 70 is disposed on a side of the source electrode s and the drain electrode d facing away from the gate electrode g. A projection of the light-shielding layer 70 covers a projection of a channel region 61 of the film transistor 60 in the direction perpendicular to the surface of the display panel, so that the light-shielding layer 70 can shield the channel region 61 of the film transistor 60 from light to prevent the electrical characteristics of the film transistor 60 from being affected by light illuminating the channel region 61 of the film transistor 60.

[0030] In an embodiment based on the above embodiments, as in Fig. As shown in Fig. 12, which is a cross-sectional view of a display panel according to the embodiment, the sensor coils 41 of the sensor antenna 40 are located in the same layer as the light-shielding layer 70 to simplify the structure of the display panel and reduce the thickness of the display panel, which is advantageous in developing a light and thin display panel.

[0031] It should be noted that if the sensor coils 41 are located in the same layer as the light-shielding layer 70, the sensor coils 41 and the light-shielding layer 70 may optionally be made of the same material and formed in the same process in order to simplify the manufacturing process of the display panel and improve the manufacturing efficiency of the display panel.

[0032] In an embodiment based on one of the above embodiments, as in Fig. 13, which is a cross-sectional view of a display panel according to the embodiment, a first conductor 42 of the sensor antenna 40 is located in the same layer as the scanning lines 20. In an embodiment based on one of the above embodiments, as shown in Fig. As shown in Figure 14, which is a cross-sectional view of a display panel according to the embodiment, a first conductor 42 of the sensor antenna 40 is located in the same layer as the data lines 10. In this way, the structure of the display panel is simplified and the thickness of the display panel is reduced, which is advantageous in developing a light and thin display panel. However, the relative positions between the first conductor 42 of the sensor antenna 40 and the data lines 10 are not limitative in the present invention and can be determined by practical requirements.

[0033] In another embodiment, the film transistor is in a bottom gate structure as shown in Fig. 15, which is a cross-sectional view of another structure of a film transistor in the display panel of Fig. 10. The gate electrode g of the film transistor 60 is located on a side of the source electrode s and drain electrode d of the film transistor 60 that faces away from the color film substrate 400. In the embodiment, the sensor coils 41 are located in a different layer and are insulated from the gate electrodes g and the source electrodes s / drain electrodes d of the film transistors 60. Optionally, the film transistors 60 in the embodiment comprise low-temperature polysilicon film transistors, but this is not limiting in the present invention and may be determined by practical requirements.

[0034] It should be noted that in the above embodiment, the sensor coils 41 in the sensor antenna 40 may be arranged in a separate layer or in the same layer as other elements, which does not become limiting in the present invention as long as it is ensured that the sensor antenna 40 is at least partially located in the display area 100 of the display panel and does not affect the normal display of the display panel.

[0035] As in Fig. 16, which is a cross-sectional view of a color film substrate in a display panel according to an embodiment of the present invention, the color film substrate 400 in the embodiment of the present invention includes a black matrix 80 and a color resistor 90 defined by the black matrix 80. A projection of the black matrix 80 covers the projections of the data lines 10 and the scan lines 20 in the array substrate 300 in the direction perpendicular to the surface of the display panel.The manner in which the projection of the black matrix 80 covers the projections of the data lines 10 and the scanning lines 20 in the array substrate 300 in the direction perpendicular to the surface of the display panel includes a manner in which the projection of the black matrix 80 exactly overlaps the projections of the data lines 10 and the scanning lines 20 in the array substrate 300 in the direction perpendicular to the surface of the display panel, and may include a manner in which the projection of the black matrix 80 is larger than the projections of the data lines 10 and the scanning lines 20 in the array substrate 300 in the direction perpendicular to the surface of the display panel, which is not limitative in the present invention as long as the projections of the data lines 10 and the scanning lines 20 in the array substrate 300 are located within the projection of the black matrix 80 in the direction perpendicular to the surface of the display panel of the display panel.

[0036] In an embodiment based on the above embodiment, the sensor antenna 40 may be integrated into the array substrate 300 or into the color film substrate 400. If the sensor antenna 40 is integrated into the color film substrate 400, the sensor antenna 40 is optionally located on a side of the black matrix 80 facing the array substrate 300, as shown in Fig. 17 is shown, which is a schematic diagram showing the relative positional relationship between a color film substrate and a sensor antenna in a display panel according to the embodiment, which, however, is not limitative in the present invention and may be determined by practical requirements.

[0037] In an embodiment based on any of the above embodiments, the specific electrical resistance of the sensor antenna 40 is in the range of 1.5×10 -8 Ω m up to and including 5.8×10 -8Ω m to reduce the resistance loss of the sensor antenna 40. Optionally, the sensor antenna 40 may be made of aluminum or molybdenum, but this is not limiting in the present invention and may be determined by practical requirements.

[0038] Additionally, a display device according to an embodiment of the present invention is provided. As shown in Fig. 18, which is a schematic structural diagram of a display device according to the embodiment, the display device 500 in the embodiment includes the display panel according to any one of the above embodiments.

[0039] In summary, the display panel and the display device with the display panel according to the embodiments of the present invention include intersecting data lines 10 and scanning lines 20, and the sensor antenna 40. The intersecting data lines 10 and the scanning lines 20 are located in the display area 100 of the display panel and define the plurality of subpixels 30. The sensor antenna 40 includes a plurality of sensor coils 41 and is located at least partially in the display area 100 of the display panel to enlarge the area occupied by the sensor antenna 40 and increase the number of sensor coils 41 that can be accommodated in the display panel, thereby improving the conversion efficiency of the sensor antenna 40.Furthermore, in the display panel according to the embodiments of the present invention, the projections of the data lines 10 and / or the scanning lines 20 cover the projections of the sensor coils 41 in the direction perpendicular to the surface of the display panel in order to prevent the aperture ratio of the display panel from being affected by the sensor coils 41 arranged in the display area 100.

[0040] Different parts of the specification are described in a progressive manner, with each part highlighting the differences from other parts. For identical or similar parts in different parts, reference can be made to the description of the other parts.

[0041] It should be noted that relational terms such as "first" and "second," and the like, are used herein only to distinguish one unit or function from another unit or function, and do not necessarily require or imply that an actual relationship or sequence of such nature exists between such units or functions. Furthermore, the terms "comprise," "include," and other variations are to be interpreted to cover non-exclusive contents, such that the processes, procedures, items, or equipment, including a series of elements, include not only such elements, but also other elements not clearly listed, or even elements inherent in the processes, procedures, items, or equipment. Unless further limitations apply, the terms "comprise" include...“ does not exclude the existence of other identical elements in the processes, procedures, articles or equipment containing the elements.

[0042] Based on the description of the embodiments herein, one skilled in the art can make or use the invention. Numerous modifications will be apparent to those skilled in the art, and the general principles defined herein may be embodied in other embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to the embodiments described herein, but is to be accorded the widest possible application consistent with the principles and novelty disclosed herein.

[0043] This patent application claims priority over Chinese Patent Application No. 201610511242.6, entitled “DISPLAY PANEL AND DISPLAY DEVICE,” filed on June 30, 2016, with the Intellectual Property Office of the People’s Republic of China (SIPO), which is incorporated herein by reference.

Claims

[1] Display panel, comprising: Data lines (10) and scanning lines (20) which are arranged so as to cross one another and in a display area (100) of the display panel, the data lines (10) and the scanning lines (20) defining a plurality of subpixels (30); and a sensor antenna (40) comprising a plurality of sensor coils (41) and arranged at least partially in the display area (100) of the display panel, wherein projections of the sensor coils (41) are arranged within the projections of the data lines (10) and / or the scanning lines (20) in the display area (100) of the display panel in a direction perpendicular to a surface of the display panel. [2] The display panel according to claim 1, wherein the sensor antenna (40) comprises a first conductor (42) at one end of the sensor antenna (40) and a second conductor (43) at the other end of the sensor antenna (40), the first conductor (42) being in a different layer than the sensor coils (41) and being overlapped by the sensor coils (41), and the second conductor (43) being in the same layer as the sensor coils (41) and not being overlapped by the sensor coils (41). [3] The display panel according to claim 2, wherein the first conductor (42) and the second conductor (43) are electrically connected to a drive circuit (50), and the drive circuit (50) is configured to provide a drive signal to the sensor antenna (40) and to detect a current signal in the sensor antenna (40). [4] A display panel according to claim 2, wherein a part of the sensor antenna (40) is arranged in the display area (100) of the display panel and the other part of the sensor antenna (40) is arranged in an edge area (200) of the display panel, and a part of the conductors at each end of the sensor antenna (40) which are overlapped by the sensor coils (41) are arranged in the edge area (200) of the display panel. [5] A display panel according to any one of claims 1 to 4, further comprising an array substrate (300) and a color film substrate (400) arranged opposite to each other, wherein the data lines (10) and the scanning lines (20) are located in the array substrate (300), and the sensor antenna (40) is integrated into the array substrate (300) or the color film substrate (400). [6] The display panel according to claim 5, wherein the array substrate (300) further comprises film transistors (60) electrically connected to the data lines (10) and the scanning lines (20); and gate electrodes (g) of the film transistors (60) are electrically connected to the scanning lines (20), and source electrodes (s) or drain electrodes (d) of the film transistors (60) are electrically connected to the data lines (10), and the film transistors (60) are configured to control the display of the subpixels (30). [7] A display panel according to claim 6, wherein in each of the film transistors (60), the film transistor (60) is in a top-gate structure, a light-shielding layer (70) is disposed on a side of the source electrode (s) and the drain electrode (d) of the film transistor (60) opposite to the gate electrode (g) of the film transistor (60), and a projection of the light-shielding layer (70) covers a projection of a channel region (61) of the film transistor (60) in the direction perpendicular to the surface of the display panel. [8] A display panel according to claim 7, wherein the sensor coils (41) of the sensor antenna (40) are located in the same layer as the light shielding layer (70). [9] A display panel according to claim 8, wherein the sensor coils (41) and the light shielding layer (70) are made of the same material and are formed in the same process. [10] A display panel according to claim 8, wherein a first conductor (42) of the sensor antenna (40) is located in the same layer as the scanning lines (20) or a first conductor (42) of the sensor antenna (40) is located in the same layer as the data lines (10). [11] A display panel according to claim 6, wherein in each of the film transistors (60), the film transistor (60) is in a bottom gate structure and the sensor coils (41) are in a different layer and are insulated from the gate electrode (g) and the source electrode (s) / drain electrode (d) of the film transistor (60). [12] A display panel according to claim 6, wherein the film transistors (60) comprise low-temperature polysilicon film transistors. [13] The display panel according to claim 5, wherein the color film substrate (400) comprises a black matrix (80) and a color resistor (90) defined by the black matrix (80), wherein a projection of the black matrix (80) covers the projections of the data lines (10) and the scanning lines (20) in the array substrate (300) in the direction perpendicular to the surface of the display panel. [14] The display panel of claim 13, wherein the sensor antenna (40) is located on a side of the black matrix (80) facing the array substrate (300). [15] A display panel according to claim 1, wherein a specific electrical resistance of the sensor antenna (40) is in the range of 1.5×10 -8 Ω m up to and including 5.8× 10 -8 Ω m. [16] A display panel according to claim 15, wherein the sensor antenna (40) is made of aluminum or molybdenum. [17] A display device (500) comprising the display panel according to any one of claims 1 to 16.

Citation Information

Patent Citations

  • Display panel and display device

    CN106098702B

  • Electromagnetic inductive touch panel, electromagnetic inductive touch display panel and electromagnetic inductive touch display device

    DE102014114128A1

  • Communication device and screen with antennas between the screen pixels

    DE102015011251A1

  • Display panel having wireless charging function

    US20140049882A1