CN109683670B - Display panel and display device - Google Patents
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- CN109683670B CN109683670B CN201910024398.5A CN201910024398A CN109683670B CN 109683670 B CN109683670 B CN 109683670B CN 201910024398 A CN201910024398 A CN 201910024398A CN 109683670 B CN109683670 B CN 109683670B
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- 239000000758 substrate Substances 0.000 claims description 94
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- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3265—Power saving in display device
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Abstract
The invention discloses a display panel and a display device, relates to the technical field of display, and aims to solve the problem that the screen occupation ratio of the display device in the related art is small. The display panel comprises a display area and a non-display area positioned at the periphery of the display area, and further comprises a magnetic coil and a power supply line, wherein the magnetic coil is positioned in the non-display area, and the power supply line is electrically connected with the magnetic coil so that the magnetic coil can generate a magnetic field. The invention can be used in foldable display devices such as notebook computers.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of display technology, users have increasingly demanded the appearance of foldable display devices such as notebook computers. One of the important indicators is a screen ratio, which is a relative ratio of a screen (i.e., a display area of a display panel) and a front panel area of the display screen, and a display device with a large screen ratio can make it easier for a user to obtain a better visual experience. Among them, reducing the width of the frame of the display device is an important way to improve the screen ratio.
At present, a foldable display device such as a notebook computer, as shown in fig. 1, is provided with a permanent magnet 03 at an upper frame 01 or a lower frame 02 of the display device, so that after the folding is completed, the permanent magnet 03 can trigger a magnetic switch to generate a signal to control the computer to enter a sleep state. However, the permanent magnet 03 is arranged at the upper frame 01 or the lower frame 02 of the display device, and the permanent magnet 03 occupies a certain space, so that the width of the upper frame or the lower frame is limited to a certain extent, and the screen occupation ratio of the display device is not improved.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the problem that the screen occupation ratio of the display device in the related art is small.
To achieve the above object, in a first aspect, an embodiment of the present invention provides a display panel including a display area and a non-display area located at a periphery of the display area, and further including a magnetic coil located in the non-display area and a power supply line electrically connected to the magnetic coil to enable the magnetic coil to generate a magnetic field.
Further, the display panel further comprises a substrate base plate; the magnetic coil is a thin film coil, the thin film coil is arranged on the substrate base plate, the thin film coil is provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end are both electrically connected with the power supply line, so that the thin film coil can generate a magnetic field.
Further, the thin film coil includes a first planar spiral coil disposed on the substrate base plate; the first connection end comprises a first end part, and the first end part is an end part of the first planar spiral coil, which is positioned at the outer side of the first planar spiral coil; the second connection end includes a second end portion that is an end portion of the first planar spiral coil located inside the first planar spiral coil; the first end portion and the second end portion are each electrically connected to the power supply line to enable the first planar spiral coil to generate a magnetic field.
Still further, the thin-film coil further includes a lead-out line, a first insulating film, and a conductive film, the lead-out line is disposed on the substrate base, and an orthogonal projection of the lead-out line on the substrate base is located on one side of an orthogonal projection of the first planar spiral coil on the substrate base, the first insulating film covers the lead-out line and the first planar spiral coil; the conductive film covers the first insulating film, is electrically connected with the second end portion through a first through hole, and is electrically connected with the outgoing line through a second through hole.
Still further, the thin film coil further includes a second planar spiral coil, a first insulating film, and a second insulating film, the first insulating film covering the first planar spiral coil, the second planar spiral coil being disposed on the first insulating film, the second insulating film covering the second planar spiral coil; the first connection end further comprises a third end part, and the third end part is an end part of the second planar spiral coil, which is positioned at the outer side of the second planar spiral coil; the second connection end further comprises a fourth end portion, and the fourth end portion is an end portion of the second planar spiral coil located on the inner side of the second planar spiral coil; the third end portion and the fourth end portion are each electrically connected to the power supply line so that the second planar-spiral coil can generate a magnetic field, and the magnetic field generated by the second planar-spiral coil overlaps with the magnetic field generated by the first planar-spiral coil.
Furthermore, the orthographic projection of the first central area on the substrate base plate is overlapped with the orthographic projection of the second central area on the substrate base plate; the first central area is a central area defined by the first planar spiral coil, and the second central area is a central area defined by the second planar spiral coil.
Further, the thin-film coil further includes a lead-out line and a conductive film, the lead-out line being provided on the substrate base, an orthogonal projection of the lead-out line on the substrate base being located on a side of an orthogonal projection of the first planar spiral coil on the substrate base and on a side of an orthogonal projection of the second planar spiral coil on the substrate base, the lead-out line being covered with the second insulating film; the conductive film covers the second insulating film, is electrically connected with the second end portion through a first via hole, is electrically connected with the outgoing line through a second via hole, and is electrically connected with the fourth end portion through a third via hole.
Furthermore, the thin film coil is provided with a magnetic conductive film, the magnetic conductive film covers the substrate base plate, the magnetic conductive film is positioned on a magnetic path of the thin film coil, and the orthographic projection of the magnetic conductive film on the substrate base plate is overlapped with the orthographic projection of the central area surrounded by the thin film coil on the substrate base plate.
Furthermore, the display panel further comprises an array substrate, and the thin film coil is arranged on the substrate of the array substrate and is positioned in the non-display area of the array substrate.
Furthermore, the thin film coil is disposed at a corner of the array substrate.
Furthermore, the power supply line comprises a first sub-line and a second sub-line, the first sub-line is electrically connected with one of the first connecting end and the second connecting end, and the second sub-line is electrically connected with the other of the first connecting end and the second connecting end; the array substrate comprises an STV signal line, a Reset signal line, a Vcom signal line, a VGL signal line, a VGH signal line, a GCH signal line, a redundant data line and a GOA driving unit, wherein the STV signal line, the Reset signal line, the VGL signal line, the VGH signal line and the GCH signal line are respectively and electrically connected with corresponding input ends of the GOA driving unit; the first sub-line is any one of an STV signal line, a Reset signal line and a Vcom signal line, and the second sub-line is a VGL signal line; or the first sub-line is a VGH signal line, and the second sub-line is a GCH signal line; or the first sub-line is a redundant data line, and the second sub-line is a Vcom signal line.
Further, the resistance of the thin film coil is R1The sum of the resistances of the second sub-line and the second sub-line is R2，R1And R2Satisfies the following conditions: r1>10R2。
In a second aspect, an embodiment of the present invention provides a display device, including a housing, a magnetic switch, and the display panel in the first aspect, where the display panel is disposed on the housing, and the housing can drive the display panel to switch between a folded position and a working position; the magnetic switch comprises a magnetic sensor which is arranged on the shell and used for sensing the intensity of a magnetic field generated by a magnetic coil of the display panel, and when the display panel is positioned at the folding position, the magnetic field generated by the magnetic coil can trigger the magnetic sensor to generate an electric signal so as to stop the display panel from displaying pictures.
According to the display panel and the display device provided by the embodiment of the invention, the power supply line is electrically connected with the magnetic coil, so that the magnetic coil can generate a magnetic field, and after the display device is folded, the magnetic field generated by the magnetic coil can trigger the magnetic switch to generate an electric signal, so that the display panel stops displaying pictures, and the display device enters a dormant state, so that the power consumption of the display device can be reduced; and because the magnetic coil is positioned in the non-display area of the display panel, the magnetic coil fully contributes to the space of the non-display area of the display panel, the occupation of the frame space of the display device is avoided, the frame of the display device can be designed to be narrower, and the screen occupation ratio of the display device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a display device according to the related art;
FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an array substrate of a display device according to an embodiment of the invention;
FIG. 4 is a schematic diagram of the structure of a magnetic coil (a planar spiral coil) of a display device in some embodiments of the invention;
FIG. 5 is a cross-sectional view M-M of FIG. 4;
FIG. 6 is a schematic diagram of the structure of the magnetic coil of a display device in other embodiments of the invention (two planar spiral coils);
FIG. 7 is a cross-sectional view B-B of FIG. 6;
FIG. 8 is a cross-sectional view C-C of FIG. 6;
FIG. 9 is a schematic diagram of the structure of a magnetic coil of a display device in other embodiments of the invention (planar spiral coil having a magnetic core);
FIG. 10 is a cross-sectional view N-N of FIG. 9;
FIG. 11 is a schematic illustration of the connection of supply wires to magnetic coils (with the STV signal wires, VGL signal wires electrically connected to the magnetic coils) in some embodiments of the invention;
figure 12 is a graph illustrating the variation in the strength of the magnetic field produced by the magnetic coil in some embodiments of the present invention;
FIG. 13 is a schematic diagram of the connection of supply lines to magnetic coils (with redundant data lines, Vcom signal lines electrically connected to magnetic coils) in other embodiments of the invention;
figure 14 is a graph illustrating the variation in the strength of the magnetic field produced by the magnetic coil in further embodiments of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In a first aspect, embodiments of the present invention provide a display panel, as shown in fig. 3, comprising a display area 1 and a non-display area 2 located at a periphery of the display area 1, the display panel further comprising a magnetic coil 3 and a power supply line 4, the magnetic coil 3 being located in the non-display area 2, the power supply line 4 being electrically connected to the magnetic coil 3 to enable the magnetic coil 3 to generate a magnetic field.
The display panel may be a liquid crystal display panel, or may also be an OLED (Organic Light-Emitting Diode) display panel, which is not specifically limited herein; the magnetic coil 3 is disposed in the non-display region 2, and may be disposed on an outer surface of the display panel or integrated in the display panel, for example, as shown in fig. 3, or integrated in the non-display region of the array substrate, which is not particularly limited herein.
In the display panel provided by the embodiment of the invention, the power supply line 4 is electrically connected with the magnetic coil 3, so that the magnetic coil 3 can generate a magnetic field, and after the display device is folded, the magnetic field generated by the magnetic coil 3 can trigger the magnetic switch to generate an electric signal, so that the display panel stops displaying pictures, and the display device enters a dormant state, so that the power consumption of the display device can be reduced; and because the magnetic coil 3 is located in the non-display area 2 of the display panel, the magnetic coil 3 fully contributes to the space of the non-display area 2 of the display panel, and avoids occupying the frame space of the display device, the frame of the display device can be designed to be narrower, thereby being beneficial to improving the screen occupation ratio of the display device.
In the above-described embodiment, the type of the magnetic coil 3 is not exclusive, and for example, as shown in fig. 3 and 4, the magnetic coil 3 may be a thin film coil that is provided on the substrate 5 of the display panel (as shown in fig. 5), the thin film coil having the first connection terminal 31 and the second connection terminal 32, and both the first connection terminal 31 and the second connection terminal 32 are electrically connected to the power supply line 4 so that the thin film coil can generate a magnetic field. The magnetic coil 3 may be a solenoid coil provided on the substrate 5 of the display panel, and both ends of the solenoid coil may be electrically connected to the power supply lines 4. The thin film coil has a smaller axial dimension (i.e., thickness) than the solenoid coil, occupies a smaller space, and at the same time, the thin film coil can be directly disposed on the surface of the substrate 5, so that the magnetic coil 3 can be conveniently disposed.
The structure of the film coil is also not unique, for example, the film coil may have the following structure: as shown in fig. 4, the film coil includes a first planar spiral coil 33, the first planar spiral coil 33 being disposed on the substrate base plate 5 (shown in fig. 5); the first connection end 31 includes a first end portion 311, the first end portion 311 is an end portion of the first planar spiral coil 33 located outside the first planar spiral coil 33; the second connection terminal 32 includes a second end portion 321, the second end portion 321 being an end portion of the first planar spiral coil 33 located inside the first planar spiral coil 33; the first end portion 311 and the second end portion 321 are each electrically connected to the power supply line 4 to enable the first planar spiral coil 33 to generate a magnetic field.
In addition, the film coil may have the following structure: the thin film coil includes a split ring coil, the split ring coil is disposed on the substrate base plate 5, one end portion of the split ring coil is a first connection end 31, and the other end portion of the split ring coil is a second connection end 32. Compared with the embodiment that the film coil comprises the open-loop coil, the embodiment that the film coil comprises the first planar spiral coil 33 has more turns of the first planar spiral coil 33, so that when the power supply line 4 supplies power to the first planar spiral coil 33, the magnetic field intensity generated by the first planar spiral coil 33 is larger, and then after the display device is folded, the magnetic field generated by the first planar spiral coil 33 can trigger the magnetic switch to generate the electric signal more easily, so that the display panel stops displaying the picture.
In the embodiment in which the film coil includes the first planar spiral coil 33, the manner of electrical connection between the power supply line 4 and the second end portion 321 is not exclusive, for example, the power supply line 4 may be electrically connected to the second end portion 321 through the lead line 34, specifically, as shown in fig. 4 and 5, the film coil further includes a lead line 34, a first insulating film 35a, and a conductive film 36 (also referred to as a jumper line), the lead line 34 is disposed on the substrate 5, and an orthogonal projection of the lead line 34 on the substrate 5 is located on a side of an orthogonal projection of the first planar spiral coil 33 on the substrate 5, the first insulating film 35a covers the lead line 34, the first planar spiral coil 33, the conductive film 36 covers the first insulating film 35a, and the conductive film 36 is electrically connected to the second end portion 321 through the first via 37a and is electrically connected to the lead line 34 through the second via 37 b.
In addition, the power supply line 4 may be directly electrically connected to the second end 321, specifically as follows: the first planar spiral coil 33 is covered with a first insulating film 35a, a part of the power supply line 4 is provided on the first insulating film 35a, an opening is formed in the first insulating film 35a at a position corresponding to the second end 321, and the power supply line 4 is electrically connected to the second end 321 through the opening. Compared with the embodiment in which the power supply line 4 is directly electrically connected to the second end portion 321, in the embodiment in which the film coil includes the lead line 34, the power supply line 4 can be electrically connected to the second end portion 321 through the lead line 34, the second via hole 37b, the conductive film 36, and the first via hole 37a, and the power supply line 4 does not need to extend into the first planar spiral coil 33, thereby facilitating the electrical connection between the power supply line 4 and the second end portion 321.
In an embodiment in which the thin film coil includes the lead-out wire 34, the lead-out wire 34 and the first planar spiral coil 33 may be located on the same layer, such as shown in fig. 5, where the lead-out wire 34 and the first planar spiral coil 33 are both located on the surface of the substrate base 5; in this case, the lead-out wire 34 and the first planar spiral coil 33 may be both made of the same metal material; in addition, the lead wire 34 and the first planar spiral coil 33 may be located in different layers, for example, the first planar spiral coil 33 is located on the surface of the substrate base plate 5, and the lead wire 34 is located on a film layer covering the substrate base plate 5, in this case, the first planar spiral coil 33 may be made of a metal material, and the lead wire 34 may be made of a metal material, or may be made of a non-metal conductive material.
In order to increase the intensity of the magnetic field generated by the thin film coil, as shown in fig. 6, 7 and 8, in addition to the above-described thin film coil, the thin film coil further includes a second planar spiral coil 38, a second insulating film 35b, the second planar spiral coil 38 is disposed on the first insulating film 35a, and the second planar spiral coil 38 is covered by the second insulating film 35 b; the first connection terminal 31 further includes a third end portion 312, the third end portion 312 is an end portion of the second planar spiral coil 38 located outside the second planar spiral coil 38; the second connection end 32 further includes a fourth end portion 322, the fourth end portion 322 being an end portion of the second planar helical coil 38 located inside the second planar helical coil 38; the third end portion 312 and the fourth end portion 322 are each electrically connected to the power supply line 4 so that the second planar-spiral coil 38 can generate a magnetic field, and the magnetic field generated by the second planar-spiral coil 38 overlaps with the magnetic field generated by the first planar-spiral coil 33. By connecting the first planar spiral coil 33 and the second planar spiral coil 38 in parallel, and overlapping the magnetic field generated by the second planar spiral coil 38 with the magnetic field generated by the first planar spiral coil 33, the magnetic field generated by the film coil can be made to have a larger intensity, and then after the display device is folded, the magnetic field generated by the film coil can more easily trigger the magnetic switch to generate an electric signal, so that the display panel stops displaying pictures.
The first planar spiral coil 33 and the second planar spiral coil 38 are not unique in position, for example, as shown in fig. 6, an orthographic projection of the first central area 331 on the substrate base plate 5 may overlap with an orthographic projection of the second central area 381 on the substrate base plate 5; the first central area 331 is a central area surrounded by the first planar spiral coil 33, and the second central area 381 is a central area surrounded by the second planar spiral coil 38. In addition, an orthogonal projection of the first central region 331 on the substrate base plate 5 may not overlap with an orthogonal projection of the second central region 381 on the substrate base plate 5. Compared with the embodiment that the orthographic projection of the first central area 331 on the substrate base plate 5 is not overlapped with the orthographic projection of the second central area 381 on the substrate base plate 5, the embodiment that the orthographic projection of the first central area 331 on the substrate base plate 5 is overlapped with the orthographic projection of the second central area 381 on the substrate base plate 5 is larger, and the overlapping area of the magnetic field generated by the first planar spiral coil 33 and the magnetic field generated by the second planar spiral coil 38 is larger, so that the intensity of the magnetic field generated by the thin film coil is further increased, and the thin film coil can more easily trigger the magnetic switch to generate an electric signal after the display device is folded, so that the display panel stops displaying pictures.
It should be noted that: the orthographic projection of the first central region 331 on the substrate base plate 5 overlaps with the orthographic projection of the second central region 381 on the substrate base plate 5, which may be completely overlapping or partially overlapping, and is not limited herein.
In the embodiment in which the thin-film coil includes the first planar spiral coil 33 and the second planar spiral coil 38, the manner of electrical connection of the power supply line 4 with the second end portion 321 and the fourth end portion 322 is not exclusive, for example, the power supply line 4 may be electrically connected with the second end portion 321 and the fourth end portion 322 through the lead lines 34, respectively, as shown in fig. 6, 7 and 8 in particular, the thin-film coil further includes the lead lines 34 and the conductive films 36, the lead lines 34 are disposed on the substrate base plate 5, the orthographic projection of the lead lines 34 on the substrate base plate 5 is located on the side of the orthographic projection of the first planar spiral coil 33 on the substrate base plate 5, and is located on the side of the orthographic projection of the second planar spiral coil 38 on the substrate base plate 5, and the lead lines 34 are covered by the second insulating film 35 b; the conductive film 36 covers the second insulating film 35b, and the conductive film 36 is electrically connected to the second end portion 321 through the first via 37a, the lead line 34 through the second via 37b, and the fourth end portion 322 through the third via 37 c. In order to ensure that the conductive film 36 can be electrically connected to the second end portion 321 through the first via 37a and electrically connected to the fourth end portion 322 through the third via 37c, as shown in fig. 6, the second end portion 321 has a connection region 3211, the connection region 3211 is offset from the fourth end portion 322, the first via 37a is opened at a position corresponding to the connection region 3211 in the first insulating film 35a and the second insulating film 35b, and the third via 37c is opened at a position corresponding to the fourth end portion 322 in the second insulating film 35 b.
The feeder line 4 may be directly electrically connected to the second end 321 and the fourth end 322, specifically as follows: the power supply line 4 is partially provided on the second insulating film 35b, the second insulating film 35b has a first opening at a position corresponding to the fourth end 322, the first insulating film 35a and the second insulating film 35b have a second opening at a position corresponding to the second end 321, and the power supply line 4 is electrically connected to the fourth end 322 through the first opening and is also electrically connected to the second end 321 through the second opening. Compared with the embodiment in which the power supply line 4 is directly electrically connected with the second end portion 321 and the fourth end portion 322, the thin-film coil includes the outgoing line 34, the power supply line 4 can be electrically connected with the second end portion 321 and the fourth end portion 322 through the outgoing line 34, the second via hole 37b, the conductive film 36, the first via hole 37a and the third via hole 37c, and the power supply line 4 does not need to extend into the first planar spiral coil 33 and the second planar spiral coil 38, so that the power supply line 4 is electrically connected with the second end portion 321 and the fourth end portion 322 conveniently.
In order to further increase the strength of the magnetic field generated by the thin-film coil, as shown in fig. 9 and 10, the thin-film coil has a magnetic conductive film 39, the magnetic conductive film 39 covers the substrate 5, the magnetic conductive film 39 is located on the magnetic path of the thin-film coil, and the orthographic projection of the magnetic conductive film 39 on the substrate 5 overlaps with the orthographic projection of the central area (e.g., the first central area 331 shown in fig. 9) surrounded by the thin-film coil on the substrate 5. Through setting up magnetic conduction membrane 39, make film coil have the magnetic core like this, greatly increased film coil produces the intensity in magnetic field to be favorable to the produced magnetic field of film coil to trigger magnetic switch and produce the signal of telecommunication more, so that display panel stops to show the picture.
The magnetic film 39 may be located in the same layer as the thin film coil, for example, as shown in fig. 10, the magnetic film 39 and the first planar spiral coil 33 are both located on the surface of the substrate base plate 5; in addition, the magnetic conductive film 39 may also be located in a different layer from the thin film coil, for example, the first planar spiral coil 33 is located on the surface of the substrate base plate 5, and the magnetic conductive film 39 is located on a film layer covering the substrate base plate 5; the magnetic conductive film 39 may be made of a metal material, for example, as shown in fig. 10, the magnetic conductive film 39 and the first planar spiral coil 33 are both made of Gate metal.
In embodiments where the thin-film coil includes the first planar-spiral coil 33 and the second planar-spiral coil 38, the magnetically permeable membrane 39 may be located at the first central region 331 (as shown in fig. 10), or at the second central region 381; in addition, the number of the magnetic films 39 may also be two, and the two magnetic films 39 are respectively disposed at the first central area 331 and the second central area 381.
In the embodiment where the magnetic coil 3 is a thin film coil, the thin film coil is not only disposed at the display panel, for example, as shown in fig. 3 and 5, the thin film coil may be disposed on the substrate 5 of the array substrate 6 and located in the non-display area of the array substrate 6. In addition, the thin film coil may be disposed on the substrate 5 of the color filter substrate. Compare and set up on the substrate base plate 5 of various membrane base plate, the film coil sets up on the substrate base plate 5 of array base plate 6, can make things convenient for arranging of power supply line 4 more, use the line of walking on the array base plate 6 just can be for the film coil power supply, for example STV signal line and VGL signal line, perhaps redundant data line (dummy data line) and Vcom signal line, power supply line 4 just need not independent setting like this, also need not to provide power supply signal alone, has saved the cost of manufacture greatly.
It should be noted that: the array substrate 6 may be an array substrate 6 of a liquid crystal display panel, or an array substrate 6 of an OLED display panel, and is not limited in detail herein.
The position of the thin film coil in the non-display area of the array substrate 6 is also not unique, for example, as shown in fig. 3, the thin film coil may be disposed at a corner of the array substrate 6. The thin film coil may be provided in a region corresponding to a middle portion of the array substrate 6. Compared with the area corresponding to the middle part of the side edge of the array substrate 6, the thin film coil is arranged at the corner part of the array substrate 6, so that the thin film coil fully utilizes the blank area of the wiring on the array substrate 6, and the thin film coil is prevented from interfering with the wiring area (such as a GOA driving circuit).
In the embodiment where the thin film coil is disposed on the substrate 5 of the array substrate 6, in order to facilitate the fabrication of the thin film coil, as shown in fig. 7, the first planar spiral coil 33 and the lead-out wire 34 may be made of Gate metal, the first insulating film 35a may be a GI film, the second insulating film 35b may be a PVX film, the second planar spiral coil 38 may be made of SD metal, and the conductive film 36 may be an ITO film, so that the thin film coil may be fabricated together in the fabrication process of the array substrate 6, thereby being beneficial to saving the fabrication cost of the thin film coil.
As shown in fig. 3, 11 and 13, the power supply line 4 includes a first sub line 41 and a second sub line 42, the first sub line 41 is electrically connected to one of the first connection end 31 and the second connection end 32, and the second sub line 42 is electrically connected to the other of the first connection end 31 and the second connection end 32;
the array substrate 6 includes an STV signal line, a Reset signal line, a Vcom signal line, a VGL signal line, a VGH signal line, a GCH signal line, a redundant data line, and a GOA driving unit, where the STV signal line, the Reset signal line, the VGL signal line, the VGH signal line, and the GCH signal line are electrically connected to corresponding input terminals on the GOA driving unit, respectively.
The types of the first sub-line 41 and the second sub-line 42 are also not unique, for example, as shown in fig. 11, the first sub-line 41 may be an STV signal line, and the second sub-line 42 may be a VGL signal line. As shown in fig. 12, when the STV signal line is turned on for each frame, a high pulse signal is generated, and a voltage difference is formed between the STV signal line and the VGL signal line, so that the thin film coil generates a magnetic field pulse in a short time. Thus, the film coil can generate a magnetic field pulse when each frame is started, and if the display device can play 50 frames of pictures per second, the film coil can generate 50 magnetic field pulses within one second, so that after the display device is folded, the magnetic field pulse generated by the film coil can trigger the magnetic switch to generate an electric signal, so that the display panel stops displaying the pictures, and the display device enters a sleep state; meanwhile, as the STV signal wire is electrically connected with the film coil, when static charges are accumulated on the STV signal wire (the STV signal wire is easy to accumulate static charges in the panel manufacturing process), the static charges can enter the film coil to generate a magnetic field, and the static charges on the STV signal wire can be effectively released, so that the static charges on the STV signal wire can be prevented from entering GOA to burn off the M1 film transistor of the GOA (in the existing GOA design, because the tail end of the STV signal wire is easy to accumulate static charges, when the tail end of the STV signal wire enters the grid of the M1 through an ITO jumper wire, the jumper wire is easy to burn off, and when the tail end of the STV signal wire directly enters the grid of the M1, the M1 is easy to burn off).
In addition, the first sub-line 41 may be a Reset signal line, and the second sub-line 42 may be a VGL signal line, so that the thin film coil may generate a magnetic field pulse within a short time within one frame time, and then the thin film coil may generate a plurality of magnetic field pulses within one second to trigger the magnetic switch to generate an electrical signal, so that the display panel stops displaying the picture.
The first sub-line 41 and the second sub-line 42 may be configured such that magnetic pulses are generated in the thin film coil in a frame period, and for example, as shown in fig. 13, the first sub-line 41 is a redundant data line and the second sub-line 42 is a Vcom signal line. Thus, as shown in FIG. 14, in one frame, the redundant data lines and the Vcom signal lines have a positive voltage difference therebetween, and the thin film coil generates a magnetic field, and in the next frame, the frame is inverted, and the redundant data lines and the Vcom signal lines have a negative voltage difference therebetween, and the thin film coil generates a magnetic field in a reverse direction, so that the thin film coil generates an alternating magnetic field pulse when the frame alternates with the frame.
The first sub-wire 41 and the second sub-wire 42 can make the thin film coil generate a permanent magnetic field in addition to the magnetic field pulse, for example: the first sub-line 41 is a Vcom signal line, and the second sub-line 42 is a VGL signal line; alternatively, the first sub-line 41 is a VGH signal line, and the second sub-line 42 is a GCH signal line. Since the first sub-line 41 and the second sub-line 42 have a certain voltage difference within a frame time, the thin film coil can generate a magnetic field within the frame time, so that after the display device is folded, the magnetic field generated by the thin film coil can trigger the magnetic switch to generate an electrical signal, so that the display panel stops displaying the picture.
In the embodiment where the first sub-line 41 and the second sub-line 42 are signal traces on the array substrate 6, in order to avoid the influence of the thin film coil on the normal display of the display panel, the resistance of the thin film coil is R1The sum of the resistances of the first sub-line 41 and the second sub-line 42 is R2，R1And R2Satisfies the following conditions: r1>10R2That is, the resistance of the thin film coil should be much greater than the sum of the resistances of the second sub-line 42 and the second sub-line 42. Therefore, the short circuit between the first sub-line 41 and the second sub-line 42 can be avoided, so that the influence of the thin film coil on the signal waveforms of the first sub-line 41 and the second sub-line 42 can be reduced (for example, when the first sub-line 41 is a redundant data line and the second sub-line 42 is a Vcom signal line, the thin film coil cannot disturb the signal pair on the Vcom signal line when the signal of the Vcom signal line is inverted, or when the first sub-line 41 and the second sub-line 42 have a dc signal with a certain voltage difference, the crosstalk current between the signals on the first sub-line 41 and the second sub-line 42 can be reduced), thereby ensuring the normal display of the display panel.
In a second aspect, an embodiment of the present invention provides a display device, as shown in fig. 2, including a housing 200, a magnetic switch 300, and the display panel 100 in the first aspect, wherein the display panel 100 is disposed on the housing 200, and the housing 200 can drive the display panel 100 to switch between a folding position and a working position; the magnetic switch 300 includes a magnetic sensor 310, the magnetic sensor 310 is disposed on the housing 200, the magnetic sensor 310 is used for sensing the strength of the magnetic field generated by the magnetic coil 3 of the display panel 100, and when the display panel 100 is located at the folding position, the magnetic field generated by the magnetic coil 3 can trigger the magnetic sensor 310 to generate an electrical signal, so that the display panel 100 stops displaying the picture.
The display device may be a notebook computer (for example, as shown in fig. 2), a foldable mobile phone, a foldable tablet computer, or the like; as shown in fig. 2, the housing 200 of the display device may include a first housing 210 and a second housing 220, the first housing 210 may be folded with respect to the second housing 220, the display panel 100 is disposed on the first housing 210, the magnetic sensor 310 is disposed on the second housing 220, and after the first housing 210 is folded with respect to the second housing 220, the magnetic sensor 310 is opposite to the magnetic coil 3 on the display panel 100, so that the magnetic field generated by the magnetic coil 3 may trigger the magnetic sensor 310 to generate an electrical signal, so as to stop displaying the picture on the display panel 100.
The technical problems solved and the technical effects achieved by the display device according to the embodiments of the present invention are the same as the technical problems solved and the technical effects achieved by the display panel 100 in the first aspect, and are not repeated herein.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A display panel comprising a display area and a non-display area located at the periphery of the display area, characterized by further comprising a magnetic coil located in the non-display area and a power supply line electrically connected to the magnetic coil to enable the magnetic coil to generate a magnetic field to trigger a magnetic switch to generate an electrical signal;
the magnetic coil is a thin film coil; the display panel further comprises an array substrate and a substrate, the thin film coil is arranged on the substrate of the array substrate, and the thin film coil is arranged at the corner of the array substrate;
the thin film coil is provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end are electrically connected with the power supply line so that the thin film coil can generate a magnetic field;
the thin film coil comprises a first planar spiral coil arranged on the substrate base plate; the first connection end comprises a first end part, and the first end part is an end part of the first planar spiral coil, which is positioned at the outer side of the first planar spiral coil; the second connection end includes a second end portion that is an end portion of the first planar spiral coil located inside the first planar spiral coil; the first end and the second end are each electrically connected to the power supply line to enable the first planar helical coil to generate a magnetic field;
the thin-film coil further comprises a lead-out wire, a first insulating film and a conductive film, wherein the lead-out wire is arranged on the substrate base plate, the orthographic projection of the lead-out wire on the substrate base plate is positioned on one side of the orthographic projection of the first planar spiral coil on the substrate base plate, and the first insulating film covers the lead-out wire and the first planar spiral coil; the conductive film covers the first insulating film, is electrically connected with the second end part through a first through hole and is electrically connected with the outgoing line through a second through hole;
or,
the thin film coil further includes a second planar spiral coil, a first insulating film covering the first planar spiral coil, and a second insulating film disposed on the first insulating film, the second insulating film covering the second planar spiral coil;
the first connection end further comprises a third end part, and the third end part is an end part of the second planar spiral coil, which is positioned at the outer side of the second planar spiral coil; the second connection end further comprises a fourth end portion, and the fourth end portion is an end portion of the second planar spiral coil located on the inner side of the second planar spiral coil; the third end portion and the fourth end portion are each electrically connected to the power supply line so that the second planar-spiral coil can generate a magnetic field, and the magnetic field generated by the second planar-spiral coil overlaps with the magnetic field generated by the first planar-spiral coil.
2. The display panel according to claim 1, in the case where the thin film coil further comprises a second planar coil, a first insulating film, and a second insulating film, wherein an orthogonal projection of the first central region on the substrate base overlaps with an orthogonal projection of the second central region on the substrate base; the first central area is a central area defined by the first planar spiral coil, and the second central area is a central area defined by the second planar spiral coil.
3. The display panel according to claim 1, in the case where the thin-film coil further comprises a second planar coil, a first insulating film, and a second insulating film, characterized in that the thin-film coil further comprises a lead-out line and a conductive film, the lead-out line being provided on the substrate base, an orthogonal projection of the lead-out line on the substrate base being located on a side of an orthogonal projection of the first planar spiral coil on the substrate base and being located on a side of an orthogonal projection of the second planar spiral coil on the substrate base, the second insulating film covering the lead-out line;
the conductive film covers the second insulating film, is electrically connected with the second end portion through a first via hole, is electrically connected with the outgoing line through a second via hole, and is electrically connected with the fourth end portion through a third via hole.
4. The display panel according to any one of claims 1 to 3, wherein the thin-film coil has a magnetic conductive film covering the substrate, the magnetic conductive film is located on a magnetic path of the thin-film coil, and an orthogonal projection of the magnetic conductive film on the substrate overlaps an orthogonal projection of a central area surrounded by the thin-film coil on the substrate.
5. The display panel according to claim 1, wherein the power supply line includes a first sub line electrically connected to one of the first connection end and the second connection end and a second sub line electrically connected to the other of the first connection end and the second connection end;
the array substrate comprises an STV signal line, a Reset signal line, a Vcom signal line, a VGL signal line, a VGH signal line, a GCH signal line, a redundant data line and a GOA driving unit, wherein the STV signal line, the Reset signal line, the VGL signal line, the VGH signal line and the GCH signal line are respectively and electrically connected with corresponding input ends of the GOA driving unit;
the first sub-line is any one of an STV signal line, a Reset signal line and a Vcom signal line, and the second sub-line is a VGL signal line;
or the first sub-line is a VGH signal line, and the second sub-line is a GCH signal line;
or the first sub-line is a redundant data line, and the second sub-line is a Vcom signal line.
6. The display panel according to claim 5, wherein the thin film coil has a resistance of R1The sum of the resistances of the first sub-line and the second sub-line is R2，R1And R2Satisfies the following conditions: r1>10R2。
7. A display device, comprising a housing, a magnetic switch and the display panel of any one of claims 1 to 6, wherein the display panel is disposed on the housing, and the housing can drive the display panel to switch between a folded position and a working position;
the magnetic switch comprises a magnetic sensor which is arranged on the shell and used for sensing the intensity of a magnetic field generated by a magnetic coil of the display panel, and when the display panel is positioned at the folding position, the magnetic field generated by the magnetic coil can trigger the magnetic sensor to generate an electric signal so as to stop the display panel from displaying pictures.
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| CN103116455A (en) * | 2013-02-22 | 2013-05-22 | 珠海全志科技股份有限公司 | Electronic reading device and display method thereof |
| CN107783700A (en) * | 2016-08-26 | 2018-03-09 | 株式会社日本显示器 | Display device, input detection device and electronic installation |
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| US8010205B2 (en) * | 2007-01-11 | 2011-08-30 | Boston Scientific Neuromodulation Corporation | Multiple telemetry and/or charging coil configurations for an implantable medical device system |
| JP5459795B2 (en) * | 2011-06-06 | 2014-04-02 | 株式会社ワコム | Electronics |
| CN103927071B (en) * | 2013-12-24 | 2017-02-08 | 上海天马微电子有限公司 | Touch display panel and touch display device |
| CN103941952B (en) * | 2014-03-31 | 2017-03-29 | 上海天马微电子有限公司 | Electromagnetic induction type touch substrate and inductive touch display device |
| DE102016206922A1 (en) * | 2015-05-08 | 2016-11-10 | Semiconductor Energy Laboratory Co., Ltd. | touchscreen |
| CN106453960B (en) * | 2016-11-30 | 2020-05-08 | 惠州Tcl移动通信有限公司 | Method and system for accelerating response speed of proximity sensor of mobile terminal |
| CN108735090A (en) * | 2018-05-17 | 2018-11-02 | 蔡宝凤 | A kind of magnetic charged electrical presentation of information board based on Internet of Things |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103116455A (en) * | 2013-02-22 | 2013-05-22 | 珠海全志科技股份有限公司 | Electronic reading device and display method thereof |
| CN107783700A (en) * | 2016-08-26 | 2018-03-09 | 株式会社日本显示器 | Display device, input detection device and electronic installation |
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