TW202247131A - Display device - Google Patents

Abstract

A display device includes a substrate, a pixel array, a peripheral circuit, a driving component, and a wireless communication antenna. The substrate and at least one part of the wireless communication antenna overlap. The pixel array and the peripheral circuit are disposed on the substrate. The pixel array includes a plurality of signal lines connected to the peripheral circuit, and the driving component is electrically connected to the signal lines and the peripheral circuit. The peripheral circuit and some signal lines form an open path which has a receiving end and a floating end. The driving component is electrically connected to the receiving end, so that the signal generated by the driving component can be transferred from the receiving end to the floating end along the open path.

Description

display device

The present invention relates to a display device, and more particularly to a display device including a wireless communication antenna.

At present, many mobile devices, such as smart phones and tablet computers, have installed Near-Field Communication Antenna (NFC Antenna), so that the mobile devices have convenient wireless communication functions, such as wireless e-commerce and mobile payment. The NFC antenna is usually adjacent to the display panel, and the NFC antenna in some mobile devices overlaps the display panel.

However, the NFC antenna overlapping the display panel is sometimes interfered by the display panel. When the display panel is in operation, due to the spatial overlap between the near field communication antenna and the display panel, electromagnetic induction will occur between the signal in the display panel and the operating near field communication antenna, so that the signal of the display panel is passed through the inductively coupled The mode is transmitted to the near-field communication antenna, thereby interfering with the near-field communication antenna. The interfered NFC antenna will affect the wireless communication function of the mobile device, causing problems such as transaction failure or repeated deduction of mobile payment.

At least one embodiment of the present invention provides a display device to eliminate or reduce the adverse effect of the signal in the display panel on the frequency band of the NFC antenna.

A display device proposed by at least one embodiment of the present invention includes a substrate, a pixel array, a peripheral circuit, a driving element, and a wireless communication antenna. The pixel array is arranged on the substrate and includes a plurality of signal lines. The peripheral circuit is arranged on the substrate and is electrically connected to these signal lines, wherein the peripheral circuit forms an open path with some of these signal lines, and the open path has a receiving end and a floating end. The driving element is electrically connected to these signal lines and the peripheral circuit, wherein the driving element is electrically connected to the receiving end, so that the high-frequency signal generated by the driving element is transmitted from the receiving end to the floating terminal along an open path. At least a part of the wireless communication antenna overlaps with the substrate.

In at least one embodiment of the present invention, the wireless communication antenna projects an overlapping area on the substrate along a normal direction of the substrate, and at least a part of the open path is located in the overlapping area.

In at least one embodiment of the present invention, the signal lines are a plurality of parallel data lines.

In at least one embodiment of the present invention, the substrate has a display area and a non-display area, wherein the non-display area is located outside the display area. The pixel array is located in the display area, and the peripheral circuits are located in the non-display area.

In at least one embodiment of the present invention, the peripheral circuit includes a first electrostatic protection circuit, wherein the first electrostatic protection circuit forms a part of the open path.

In at least one embodiment of the present invention, the above-mentioned peripheral circuit includes a first electrostatic protection circuit and a second electrostatic protection circuit, wherein the pixel array is located between the first electrostatic protection circuit and the second electrostatic protection circuit, and the first electrostatic protection circuit , The second electrostatic protection circuit forms an open path with some of these signal lines.

In at least one embodiment of the present invention, both the first electrostatic protection circuit and the second electrostatic protection circuit include a plurality of one direction conductive components.

In at least one embodiment of the present invention, the peripheral circuit includes a common ring, and the signal lines are a plurality of parallel common lines, and the common ring connects the signal lines and has at least one gap.

In at least one embodiment of the present invention, the at least one gap is located between two adjacent signal lines.

In at least one embodiment of the present invention, the size of the wireless communication antenna is smaller than the size of the substrate.

In at least one embodiment of the present invention, at least a part of the wireless communication antenna overlaps with the peripheral circuit.

In at least one embodiment of the present invention, at least a part of the wireless communication antenna overlaps with the pixel array.

Based on the above, the inductance (such as self-inductance or mutual inductance) in the pixel array and peripheral circuits can be changed by using the above-mentioned open path, so as to eliminate or reduce the adverse effect caused by the high-frequency signal of the driving element on the frequency band of the wireless communication antenna.

In the following text, in order to clearly present the technical features of this application, the dimensions (such as length, width, thickness, and depth) of elements (such as layers, films, substrates, and regions) in the drawings will be enlarged in a non-proportional manner . Therefore, the description and explanation of the following embodiments are not limited to the size and shape of the elements in the drawings, but should cover the deviations in size, shape and both caused by actual manufacturing process and/or tolerances. For example, a planar surface shown in the drawings may have rough and/or non-linear features, while acute angles shown in the drawings may be rounded. Therefore, the components shown in the drawings of this case are mainly for illustration, and are not intended to accurately depict the actual shape of the components, nor are they used to limit the scope of the patent application of this case.

Secondly, words such as "about", "approximately" or "substantially" appearing in the content of this case not only cover the clearly stated values and numerical ranges, but also cover The allowable deviation range, wherein the deviation range can be determined by the error generated during the measurement, and the error is caused by the limitation of the measurement system or process conditions, for example. For example, two objects (such as a plane or trace of a substrate) are "substantially parallel" or "substantially perpendicular", where "substantially parallel" and "substantially perpendicular" represent the parallel and perpendicular between the two objects, respectively. May include non-parallel and non-perpendicular due to tolerance range.

Additionally, "about" can mean within one or more standard deviations of the above numerical values, eg, within ±30%, ±20%, ±10%, or ±5%. Words such as "about", "approximately" or "substantially" appearing in this text can choose the acceptable deviation range or standard deviation according to optical properties, etching properties, mechanical properties or other properties, not a single The standard deviation is used to apply all properties such as the above optical properties, etching properties, mechanical properties and other properties.

FIG. 1A is a schematic top view of a display device according to at least one embodiment of the present invention. Referring to FIG. 1A , the display device 100 includes a substrate 110 , a pixel array 120 and a peripheral circuit 130 , wherein the pixel array 120 and the peripheral circuit 130 are both disposed on the substrate 110 , and the pixel array 120 is electrically connected to the peripheral circuit 130 . The substrate 110 may be a transparent substrate, and may be a rigid substrate or a flexible substrate. For example, the substrate 110 may be a glass plate or a transparent flexible plastic substrate.

The substrate 110 may have a display area 112 and a non-display area 111 , wherein the non-display area 111 is located outside the display area 112 . Taking FIG. 1A as an example, the non-display area 111 can surround the display area 112 , wherein the pixel array 120 is located in the display area 112 , and the peripheral circuit 130 is located in the non-display area 111 . The peripheral circuit 130 may include a first ESD protection circuit 131 , a second ESD protection circuit 132 and a circular common line 133 , wherein the pixel array 120 is located between the first ESD protection circuit 131 and the second ESD protection circuit 132 . The circular common line 133 can surround the pixel array 120, as shown in FIG. 1A.

It should be noted that, in this embodiment, the peripheral circuit 130 includes two ESD protection circuits: a first ESD protection circuit 131 and a second ESD protection circuit 132 . However, in other embodiments, the peripheral circuit 130 may only include one ESD protection circuit, such as one of the first ESD protection circuit 131 and the second ESD protection circuit 132 . Therefore, the quantity of the electrostatic protection circuit included in the peripheral circuit 130 may be only one, not limited to a plurality.

The display device 100 further includes a driving element 140 , wherein the driving element 140 is electrically connected to the pixel array 120 and the peripheral circuit 130 . Specifically, the driving element 140 may include a circuit board and at least one chip (both not shown), wherein the chip is mounted on the circuit board, and the circuit board may be a flexible circuit board or a rigid circuit board. The peripheral circuit 130 may further include an outer leas part 139 , wherein the outer leas part 139 is electrically connected to the pixel array 120 and the peripheral circuit 130 .

The driving element 140 can be electrically connected to the pixel array 120 and the peripheral circuit 130 through Outer Lead Bonding (OLB). For example, the external pin portion 139 may include a plurality of pads (pads, not shown), wherein these pads are electrically connected to the pixel array 120 and the peripheral circuit 130 . The circuit board of the driving element 140 can use solder or anisotropic conductive film (Anisotropic Conductive Film, ACF) to electrically connect these pads of the outer pin portion 139, so that the driving element 140 is electrically connected to the outer pin portion 139. Pixel array 120 and peripheral circuit 130.

FIG. 1B is a schematic cross-sectional view drawn along line 1B-1B in FIG. 1A . Please refer to FIG. 1A and FIG. 1B , the display device 100 further includes a wireless communication antenna 150 . In this embodiment, the wireless communication antenna 150 can be located under the substrate 110 , so the substrate 110 can be located between the pixel array 120 and the wireless communication antenna 150 , as shown in FIG. 1B . At least a part of the wireless communication antenna 150 can overlap not only the substrate 110 but also the pixel array 120 . Taking FIG. 1A and FIG. 1B as an example, the entire wireless communication antenna 150 can overlap the substrate 110 and the pixel array 120 , wherein the size of the wireless communication antenna 150 is obviously smaller than that of the substrate 110 .

The wireless communication antenna 150 can project an overlapping area A15 on the substrate 110 along the normal direction N11 of the substrate 110, wherein the overlapping area A15 is completely located in the display area 112, but not in the non-display area 111, so the pixel array 120 Not only distributed in the overlapping area A15 , but also distributed outside the overlapping area A15 , and the entire wireless communication antenna 150 can overlap with the pixel array 120 but not overlap with the peripheral circuit 130 .

The display device 100 may further include a display portion 180 and an opposite substrate 190 , wherein the display portion 180 is located between the opposite substrate 190 and the substrate 110 . The opposite substrate 190 may be the same as the substrate 110 . For example, the opposite substrate 190 can be a glass plate or a transparent flexible plastic substrate. The display portion 180 may include a plurality of light emitting elements, where the light emitting elements are, for example, Light Emitting Diodes (Light Emitting Diode, LED) or Organic Light Emitting Diodes (Organic Light Emitting Diode, OLED)

These light emitting elements can emit light of different colors, such as red light, blue light and green light, so that the display device 100 can display images. Alternatively, these light-emitting elements can emit light of the same color, such as blue light, and the opposite substrate 190 can include a variety of wavelength conversion materials, such as phosphor powder or quantum dot materials, wherein these wavelength conversion materials can convert the light emitted by these light-emitting elements The light (such as blue light) is converted into light of different colors such as red light, blue light and green light, so that the display device 100 can also display images.

In addition, the display part 180 can also be a display material such as a liquid crystal material, and the opposite substrate 190 can include a variety of color filters, such as red, green and blue filters. Therefore, the opposite substrate 190 , the display portion 180 , the pixel array 120 and the substrate 110 can form a Liquid Crystal Display Panel (LCD Panel), and the display portion 180 is not limited to include a plurality of light emitting elements.

It is worth mentioning that, in this embodiment, the substrate 110 may have a display area 112 and a non-display area 111 , wherein the pixel array 120 is located in the display area 112 , and the peripheral circuit 130 is located in the non-display area 111 . In other words, the pixel array 120 and the peripheral circuit 130 are located in areas of the substrate 110 that do not overlap with each other, and components of the peripheral circuit 130 are not located in the display area 112 . However, in other implementations, the pixel array 120 and the peripheral circuit 130 can be mixed and distributed in a single area of the substrate 110 .

For example, when the display portion 180 includes a plurality of light-emitting elements (such as light-emitting diodes or organic light-emitting diodes), the non-display area 111 can be omitted, and at least one or all elements (not shown) of the peripheral circuit 130 can be It is arranged in the display area 112 together with the pixel array 120 . Therefore, the substrate 110 basically does not have the non-display area 111 , and the pixel array 120 and the peripheral circuit 130 can be mixed and distributed in a single area of the substrate 110 , such as the display area 112 . It can be seen that the peripheral circuit 130 can also be disposed in the display area 112 , and is not limited to be disposed in the non-display area 111 outside the display area 112 .

FIG. 1C is a schematic top view of a display device according to another embodiment of the present invention. Please refer to FIG. 1C, the display device 101 is similar to the aforementioned display device 100, and the main difference from the display device 100 is that in the display device 101, a part of the wireless communication antenna 150 overlaps with the substrate 110, while the other part of the wireless communication antenna 150 The part does not overlap with the substrate 110 , and the part where the wireless communication antenna 150 overlaps with the substrate 110 also overlaps with the peripheral circuit 130 and the pixel array 120 .

Taking FIG. 1C as an example, the wireless communication antenna 150 overlaps part of the first ESD protection circuit 131 , part of the pixel array 120 and part of the outer pin portion 139 , but does not overlap the second ESD protection circuit 132 . In addition, part of the wireless communication antenna 150 does not overlap the substrate 110 . For example, in FIG. 1C , the part of the lower left corner of the wireless communication antenna 150 does not overlap with the substrate 110 at all. It can be seen that, according to the display devices 100 and 101 disclosed in FIG. 1A and FIG. 1C above, part or all of the wireless communication antenna 150 can overlap with the substrate 110 .

2A and 2B are schematic circuit diagrams of the display device in FIG. 1A . Please refer to FIG. 2A , in the display device 100 , the pixel array 120 includes a plurality of parallel signal lines 121 and a plurality of parallel signal lines 122 , wherein the signal lines 121 and the signal lines 122 are interleaved with each other. The signal line 121 can be a data line, and the signal line 122 can be a scan line. The pixel array 120 further includes a plurality of active devices 123, wherein the active devices 123 are electrically connected to the signal lines 121 and 122, and may be thin film transistors.

When the display part 180 (see FIG. 1B ) is a liquid crystal material, the pixel array 120 may further include a plurality of pixels (not shown), and each pixel includes a pixel electrode (not shown). The active elements 123 can be electrically connected to the pixel electrodes respectively, so as to control the deflection of a plurality of liquid crystal molecules in the display part 180 (ie, the liquid crystal material), so as to display images. When the display portion 180 includes a plurality of light-emitting elements (such as light-emitting diodes), the active elements 123 can be electrically connected to these light-emitting elements, so as to control the light-emitting elements to emit light, thereby displaying images.

The peripheral circuit 130 is electrically connected to these signal lines 121 , and the driving element 140 is electrically connected to these signal lines 121 through the peripheral circuit 130 , so that the driving element 140 can transmit electrical signals to these signal lines 121 . Electrical signals can be transmitted to the active elements 123 through the signal lines 121 , so the active elements 123 can transmit electrical signals to the above-mentioned pixel electrodes or light emitting elements, so that the display device 100 displays images.

The driving element 140 may be a source driver IC or other types of drivers. Alternatively, the driving element 140 may include at least one source driver, wherein the driving element 140 may be an integrated integrated circuit and include various drivers, such as a touch driver, a gate driver, and a source driver. Therefore, the driving element 140 is not limited to only a source driver.

Both the first ESD protection circuit 131 and the second ESD protection circuit 132 include a plurality of unidirectional conduction elements D13, and the unidirectional conduction elements D13 only allow current in a single direction to pass through. In the circuit shown in FIG. 2A , four unidirectional conduction elements D13 are electrically connected to a signal line 121 (such as a data line), and can form a circuit group G13 .

In the same circuit group G13, two unidirectional conduction elements D13 are connected in parallel with each other, and the remaining two unidirectional conduction elements D13 are also connected in parallel with each other. In addition, the two unidirectional conduction elements D13 connected in parallel will be connected in series with other two unidirectional conduction elements D13 connected in parallel, so that in the same circuit group G13, the two unidirectional conduction elements D13 are connected in series with each other, and the remaining two The unidirectional conduction elements D13 are also connected in series with each other, as shown in FIG. 2A .

It should be noted that the first ESD protection circuit 131 and the second ESD protection circuit 132 shown in FIG. 2A and FIG. 2B are equivalent circuits drawn for high-frequency signals, and the unidirectional conduction in FIG. 2A and FIG. 2B The element D13 is indicated by the circuit symbol of a diode. However, in this embodiment, these unidirectional conduction elements D13 can be composed of multiple thin film transistors (such as the active element 123), and each unidirectional conduction element D13 is not composed of a single PN junction (P-N junction) of diodes. However, in other embodiments, at least one unidirectional conduction element D13 may also be a diode composed of the above-mentioned single PN junction, so these unidirectional conduction elements D13 are not limited to be composed of multiple thin film transistors .

In the embodiment shown in FIG. 2A , two adjacent circuit groups G13 are directly electrically connected. For example, in the second electrostatic protection circuit 132 , two adjacent circuit groups G13 are directly electrically connected. However, in the first electrostatic protection circuit 131 , two adjacent circuit groups G13 are not directly electrically connected, as shown by the dashed box 21 in FIG. 2A . Specifically, the virtual frame 21 is located between two adjacent circuit groups G13, and in the virtual frame 21, an open circuit B13 is formed between the two circuit groups G13 without direct electrical connection.

In this embodiment, before the disconnection B13 is formed, there is a wire between the two adjacent circuit groups G13 (that is, the position indicated by the dashed box 21), and the wire is directly electrically connected to the two circuit groups Group G13. Afterwards, the wire is cut to form a break B13, wherein there are various methods for cutting the wire, such as laser ablation or mechanical cutting. In addition, in other embodiments, the break circuit B13 can also be formed through photolithography, and is not limited to be formed by cutting wires.

Please refer to FIG. 2A and FIG. 2B , wherein FIG. 2B shows the display device 100 in operation. In the embodiment shown in FIG. 2B , not only the pixel array 120 and the peripheral circuit 130 are in operation state, but also the wireless communication antenna 150 is in operation state. When the display device 100 is in operation, the driving element 140 generates a high-frequency signal, and the high-frequency signal is transmitted along the open path P02a, wherein the open path P02a is formed by the peripheral circuit 130 and some of the signal lines 121 . Taking FIG. 2B as an example, the first ESD protection circuit 131 , the second ESD protection circuit 132 and some of these signal lines 121 can form an open path P02a.

It should be noted that since the first ESD protection circuit 131 and the second ESD protection circuit 132 in FIG. 2A and FIG. 2B are equivalent circuits drawn for high-frequency signals, the open path P02a is only suitable for high-frequency signals. The low-frequency signal output by the driving element 140 is not applicable to the first ESD protection circuit 131 and the second ESD protection circuit 132 shown in FIG. 2A and FIG. 2B , and will not be transmitted along the open path P02a.

Since the first electrostatic protection circuit 131 has an open circuit B13, the open path P02a does not form a loop, wherein the open path P02a has a receiving terminal PR2 and a floating terminal PF2. The driving element 140 is electrically connected to the receiving end PR2, so that the high-frequency signal generated by the driving element 140 can be transmitted from the receiving end PR2 to the floating terminal PF2 along the open path P02a, wherein the floating terminal PF2 is located near the open circuit B13, as shown in FIG. 2B shown.

Referring to FIG. 2B , at least a part of the open path P02a is located in the overlapping area A15. Taking FIG. 2B as an example, a part of the open path P02a is located in the overlapping area A15 , that is, a part of the open path P02a overlaps with the wireless communication antenna 150 (corresponding to the overlapping area A15 in FIG. 2B ). However, in other embodiments, the entire open path P02a may also be located within the overlapping area A15. In addition, the overlapping area A15 in FIG. 2B is located in the display area 112, but according to the embodiment shown in FIG. 1C, a part of the overlapping area A15 in FIG. 2B may also be located in the display area 112, while the other part is located in the non-display area 111 Therefore, the overlapping area A15 in FIG. 2B is only for illustration, and does not limit the position of the overlapping area A15.

Since the first electrostatic protection circuit 131 has an open circuit B13, the open path P02a will not form a loop to change the inductance (such as self-inductance or mutual inductance) in the pixel array 120 and the peripheral circuit 130, thereby eliminating or reducing the driving element 140. The adverse effect caused by the high frequency signal on the wireless communication antenna 150. In this way, even if at least a part of the open path P02a is located in the overlapping area A15 , the wireless communication antenna 150 can basically operate smoothly without being easily interfered by the pixel array 120 and the peripheral circuit 130 in operation.

It is worth mentioning that the peripheral circuit 130 may only include one ESD protection circuit, such as one of the first ESD protection circuit 131 and the second ESD protection circuit 132, while in other embodiments, a single ESD protection circuit (such as the first ESD protection circuit An ESD protection circuit 131 or a second ESD protection circuit 132 ) and some of these signal lines 121 can also form an open path.

For example, in FIG. 2B , the first ESD protection circuit 131 and the second ESD protection circuit 132 can be swapped first so that the second ESD protection circuit 132 is located between the pixel array 120 and the driving element 140 . Next, the second electrostatic protection circuit 132 is omitted, and the signal lines 121 are extended to the driving element 140 , so that the signal lines 121 are directly electrically connected to the driving element 140 . In this way, the first ESD protection circuit 132 that is not omitted and some of the signal lines 121 can also form an open path, such as the open path P02a shown in FIG. 2B , wherein the first ESD protection circuit 132 can form a part of the above open path.

3A and 3B are schematic circuit diagrams of a display device according to another embodiment of the present invention. Please refer to FIG. 3A and FIG. 3B , the display device 300 of this embodiment is similar to the display device 100 of the previous embodiment, but the main difference lies in the position of the disconnection B13 between the display devices 300 and 100 . Specifically, in the display device 300 , the open circuit B13 is formed in the second electrostatic protection circuit 132 , but not formed in the first electrostatic protection circuit 131 .

The disconnection B13 is formed between two adjacent circuit groups G13 in the second electrostatic protection circuit 132 . With the open circuit B13, when the display device 300 is operating, the high frequency signal generated by the driving element 140 is transmitted along the open path P03a. The open path P03a is formed by the first ESD protection circuit 131, the second ESD protection circuit 132 and some of these signal lines 121, and has a receiving end PR2 and a floating terminal PF3, wherein the floating terminal PF3 is located in the second ESD protection circuit 132 Near the break circuit B13 inside. Therefore, the open path P03a does not form a loop, so as to eliminate or reduce the adverse effect caused by the high frequency signal of the driving element 140 on the wireless communication antenna 150 (corresponding to the overlapping area A15 shown in FIG. 3B ).

4A and 4B are schematic circuit diagrams of a display device according to another embodiment of the present invention. Please refer to FIG. 4A and FIG. 4B , the display device 400 is similar to the display device 100 of the above-mentioned embodiment, but the main difference lies in the number and position of the disconnection circuits B13 formed by the display devices 400 and 100 . Specifically, in the display device 400, the second electrostatic protection circuit 132 stores two open circuits B13, wherein each open circuit B13 is formed between the adjacent signal line 121 and the circuit group G13, so that the above-mentioned adjacent signal lines The line 121 is not directly electrically connected to the circuit group G13.

Please refer to FIG. 4B. When the display device 400 is in operation, the high-frequency signals generated by the driving element 140 will be transmitted along the open path P04a through the open circuits B13, wherein the open path P04a is formed by the first electrostatic protection circuit 131 and part of these signals. The line 121 is formed and has a receiving terminal PR2 and a floating terminal PF4, that is, the open path P04a does not form a loop.

In this way, the inductance (such as self-inductance or mutual inductance) in the pixel array 120 and the peripheral circuit 130 can be changed, so as to eliminate or reduce the adverse effect of the high-frequency signal of the driving element 140 on the wireless communication antenna 150 . In addition, the floating terminal PF4 is located near one of the open circuits B13, and affected by these open circuits B13, the open path P04a will not pass through the second ESD protection circuit 132, as shown in FIG. 4B.

It should be noted that, in the embodiment shown in FIG. 4A and FIG. 4B , these open circuits B13 are formed between adjacent signal lines 121 and the circuit group G13 in the second electrostatic protection circuit 132 . However, in other embodiments, these open circuits B13 can also be formed between adjacent signal lines 121 and the circuit group G13 in the first electrostatic protection circuit 131 . Therefore, FIG. 4A and FIG. 4B do not limit the quantity and position of the disconnection B13.

It is worth mentioning that, according to the embodiments disclosed in FIG. 2A to FIG. 4B above, in the display device of at least one embodiment of the present invention, for example, in the display device 100, 101, 300 or 400, in the peripheral circuit 130 At least one break circuit B13 is formed, wherein the break circuit B13 may be formed in at least one of the first ESD protection circuit 131 and the second ESD protection circuit 132 . Alternatively, the disconnection B13 may also be formed between any one of the first electrostatic protection circuit 131 and the second electrostatic protection circuit 132 and the pixel array 120 .

It can be seen from this that the position and quantity of the break circuit B13 are not limited by FIG. 2A to FIG. 4B . Furthermore, when the peripheral circuit 130 forms a plurality of open circuits B13, a plurality of open paths may be formed. Therefore, the display device according to at least one embodiment of the present invention can form at least one open path, and the above-mentioned FIGS. 2A to 4B are not used to limit the number of the above-mentioned open paths.

FIG. 5 is a schematic top view of a display device according to another embodiment of the present invention. Referring to FIG. 5 , the display device 500 in this embodiment is similar to the display device 100 in the embodiment in FIG. The component 140 , the wireless communication antenna 150 and the peripheral circuit 530 . The following mainly introduces the differences between the display devices 100 and 500 , and the same features of the display devices 100 and 500 will not be repeated in principle.

The peripheral circuit 530 includes a first electrostatic protection circuit 531, a second electrostatic protection circuit 532, an outer pin portion 139 and a ring-shaped common line 533, wherein the first electrostatic protection circuit 531 and the second electrostatic protection circuit 532 can be respectively the The first electrostatic protection circuit 131 and the second electrostatic protection circuit 132. Alternatively, the first ESD protection circuit 531 and the second ESD protection circuit 532 may be similar to the first ESD protection circuit 131 and the second ESD protection circuit 132 respectively, but both do not have the open circuit B13.

The pixel array 520 is similar to the pixel array 120 , wherein the pixel array 520 also includes a plurality of signal lines 121 , 122 and a plurality of active devices 123 . Different from the display device 100 shown in FIG. 1A, in the display device 500 shown in FIG. These signal lines 525 are connected and have at least one notch H53. Taking FIG. 5 as an example, the annular common line 533 has a plurality of notches H53 , wherein each notch H53 is located between two adjacent signal lines 525 .

In addition, the forming method of the gap H53 may be the same as that of the break B13 in the foregoing embodiment. For example, the notch H53 can be formed by cutting a complete annular common line (such as the annular common line 133 shown in FIG. 1A ), where the cutting method is, for example, laser ablation or mechanical cutting. Alternatively, the notch H53 can also be formed through, and is not limited to cutting a complete annular common line.

When the display device 500 is in operation, the high-frequency signal generated by the driving element 140 will be transmitted along the open path P05, wherein the open path P05 is formed by the circular common line 533 and some of these signal lines 525, and has a receiving end PR5 and floating Connect to PF5. The driving element 140 is electrically connected to the receiving end PR5, so that the high-frequency signal generated by the driving element 140 can be transmitted from the receiving end PR5 to the floating terminal PF5 along the open path P05, wherein the floating terminal PF2 is located near the gap H53, as shown in FIG. 5 shown.

With the gap H53, the open path P05 will not form a loop, so as to change the inductance (such as self-inductance or mutual inductance) in the pixel array 520 and the peripheral circuit 130, thereby eliminating or reducing the impact of the high-frequency signal of the driving element 140 on wireless communication. Adverse effects caused by the 150 frequency band of the antenna. Therefore, even though at least a part of the open path P05 is connected to the wireless communication antenna 150 , the wireless communication antenna 150 can basically still operate smoothly. In addition, since the annular common line 533 has a plurality of notches H53, a plurality of open paths P05 can be formed. Therefore, the number of open paths P05 is not limited to one.

It should be noted that, in the embodiment shown in FIG. 5 , the annular common line 533 has a plurality of notches H53, but in other embodiments, the annular common line 533 may only have one notch H53, and a single notch H53 forms The open path P05 can significantly reduce the inductance in the pixel array 520 and the peripheral circuit 130 , thereby effectively reducing the adverse effects of the above-mentioned high-frequency signal on the wireless communication antenna 150 .

To sum up, using the open paths formed by peripheral circuits and some of these signal lines can change the inductance (such as self-inductance or mutual inductance) in the pixel array and peripheral circuits, thereby eliminating or reducing the impact of high-frequency signals on the driving components on the wireless The adverse effect caused by the frequency band of the communication antenna enables the wireless communication antenna to basically operate smoothly without being easily interfered by the pixel array and peripheral circuits in operation.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field of the present invention can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The protection scope of the invention shall be defined by the scope of the appended patent application.

21: imaginary frame 100, 101, 300, 400, 500: display device 110: Substrate 111: Non-display area 112: display area 120, 520: pixel array 121, 122, 525: signal line 123: Active components 130, 530: Peripheral circuits 131, 531: the first electrostatic protection circuit 132, 532: the second electrostatic protection circuit 133, 533: circular common line 139: External pin part 140: drive element 150: wireless communication antenna 180: display part 190: opposite substrate A15: Overlapping area B13: open circuit D13: Unidirectional conduction element G13: circuit group N11: Normal direction H53: Gap P02a, P03a, P04a, P05: Open paths PF2, PF3, PF4, PF5: Floating terminal PR2, PR5: Receiver

FIG. 1A is a schematic top view of a display device according to at least one embodiment of the present invention. FIG. 1B is a schematic cross-sectional view drawn along line 1B-1B in FIG. 1A . FIG. 1C is a schematic top view of a display device according to another embodiment of the present invention. 2A and 2B are schematic circuit diagrams of the display device in FIG. 1A . 3A and 3B are schematic circuit diagrams of a display device according to another embodiment of the present invention. 4A and 4B are schematic circuit diagrams of a display device according to another embodiment of the present invention. FIG. 5 is a schematic top view of a display device according to another embodiment of the present invention.

100: display device

110: Substrate

111: Non-display area

112: display area

120: pixel array

121, 122: signal line

123: Active components

130: peripheral circuit

131: The first electrostatic protection circuit

132: The second electrostatic protection circuit

140: drive element

A15: Overlapping area

B13: open circuit

D13: Unidirectional conduction element

G13: circuit group

P02a: Open path

PF2: floating terminal

PR2: Receiver

Claims (12)

A display device comprising: a substrate; A pixel array is arranged on the substrate and includes a plurality of signal lines; a peripheral circuit arranged on the substrate and electrically connected to the signal lines, wherein the peripheral circuit and part of the signal lines form an open path, and the open path has a receiving end and a floating end; A driving element, electrically connecting the signal lines and the peripheral circuit, wherein the driving element is electrically connected to the receiving end, so that a high-frequency signal generated by the driving element is transmitted from the receiving end along the open path to the floating terminal; and A wireless communication antenna, wherein at least a part of the wireless communication antenna overlaps with the substrate. The display device according to claim 1, wherein the wireless communication antenna projects an overlapping area on the substrate along a normal direction of the substrate, and at least a part of the open path is located in the overlapping area. The display device according to claim 1, wherein the signal lines are a plurality of parallel data lines. The display device as claimed in item 1, wherein the substrate has: a display area, wherein the pixel array is located in the display area; and A non-display area is located outside the display area, wherein the peripheral circuit is located in the non-display area. The display device as claimed in item 1, wherein the peripheral circuit includes: A first ESD protection circuit, wherein the first ESD protection circuit forms a part of the open path. The display device as claimed in item 1, wherein the peripheral circuit includes: a first electrostatic protection circuit; and A second electrostatic protection circuit, wherein the pixel array is located between the first electrostatic protection circuit and the second electrostatic protection circuit, and the first electrostatic protection circuit, the second electrostatic protection circuit and some of the signal lines form The open path. The display device as claimed in claim 6, wherein both the first electrostatic protection circuit and the second electrostatic protection circuit include a plurality of unidirectional conductive elements. The display device according to claim 1, wherein the peripheral circuit includes an annular common line, and the signal lines are a plurality of parallel common lines, and the annular common line connects the signal lines and has at least one gap. The display device according to claim 8, wherein the at least one gap is located between two adjacent signal lines. The display device as claimed in claim 1, wherein the size of the wireless communication antenna is smaller than the size of the substrate. The display device as claimed in claim 1, wherein at least a part of the wireless communication antenna overlaps with the peripheral circuit. The display device as claimed in claim 1, wherein at least a part of the wireless communication antenna overlaps with the pixel array.

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