A display device

Abstract

The application relates to a display device. The display device comprises a display panel, a charging module and a switch structure. The display panel has a first area and a second area arranged in a first direction, the first area and the second area have a boundary extending in a second direction, and the display panel has a plurality of gate lines extending in the first direction and penetrating the first area and the second area; the second direction has an included angle with the first direction. The charging module comprises a charging coil, the charging coil is arranged on the inner side of the display panel, and the projection of the charging coil in the thickness direction of the display device is located in the first area; the switch structure is connected to a preset position between the charging coil and the boundary in the plurality of gate lines, and is used for disconnecting the plurality of gate lines when the charging module works. The display device described above is provided with the switch structure, which is used for disconnecting the plurality of gate lines when the charging module works, so that the electromagnetic wave emitted by the charging coil when the charging module works can be prevented from having an adverse effect on the display of the second area.

Description

Technical Field

[0001] This invention belongs to the field of display technology, and particularly relates to a display device. Background Technology

[0002] Currently, many electronic products incorporate wireless charging structures such as charging coils for wireless charging. With continuous technological advancements, foldable phones have adopted an outward-folding screen design. In this design, the display faces outwards when folded, while the back cover folds inwards. These foldable phones, equipped with wireless charging coils, require the wireless charger to be placed outside the screen during wireless charging. This charging method, known as "screen-apart charging," can affect the display in other areas of the device while it is charging. Summary of the Invention

[0003] According to an embodiment of the present invention, a display device is provided, comprising:

[0004] A display panel has a first region and a second region arranged in a first direction, the first region and the second region having a boundary extending along a second direction, and the display panel having a plurality of grid lines extending along the first direction and penetrating the first region and the second region; the second direction has an angle with the first direction;

[0005] A charging module includes a charging coil, which is disposed on the inner side of the display panel, and the projection of the charging coil in the thickness direction of the display device is located in the first region.

[0006] A switch structure is connected to a preset position among the multiple gate lines located between the charging coil and the boundary, for disconnecting the multiple gate lines when the charging module is working.

[0007] In some embodiments, the display device further includes a driving module and a control module. When the charging coil starts to work, the control module sends a gate line disconnect signal to the driving module to disconnect multiple gate lines. The driving module drives the switching structure to disconnect multiple gate lines according to the gate line disconnect signal.

[0008] In some embodiments, the charging module includes a charging feedback unit for sending a start charging signal to the control module when the charging coil starts working, and the control module sending a gate wire disconnection signal to the drive module to disconnect multiple gate wires according to the start charging signal.

[0009] In some embodiments, the switching structure is a thin-film transistor.

[0010] In some embodiments, the switching structure includes a plurality of thin-film transistors, each thin-film transistor being disposed at the preset position and correspondingly connected to a gate line;

[0011] The first region has a first end that is away from the second region, and the second region has a second end that is away from the first region. Each gate line includes a first segment extending from the preset position toward the first end and a second segment extending from the preset position toward the second end. One of the source and drain of each thin-film transistor is connected to the first segment, and the other is connected to the second segment.

[0012] In some embodiments, the display panel is provided with a connecting line extending along a second direction, the connecting line connecting the gates of a plurality of thin-film transistors, and the driving module is connected to the connecting line.

[0013] In some embodiments, the display panel includes a driving circuit layer, the driving circuit layer includes driving transistors, and the switching structure is formed in the same process as the driving transistors.

[0014] In some embodiments, the display device is a foldable electronic device.

[0015] In some embodiments, the display device is an outward-folding screen device.

[0016] In some embodiments, the boundary is a folded position, and the distance between the preset position and the projection of the charging coil in the thickness direction of the display device is greater than the distance between the preset position and the boundary;

[0017] The distance between the preset position and the projection of the charging coil in the thickness direction of the display device is greater than 5mm, and the distance between the preset position and the boundary is greater than 3mm.

[0018] In some embodiments, the first region has a first end opposite to the second region, and the second region has a second end opposite to the first region; the display panel includes a gate driving unit located at the second end, the gate driving unit being connected to a plurality of gate lines, and the gate driving unit being connected to the driving module; when the charging module is working, the control module can drive the gate driving unit to work by controlling the driving module, so as to control the second region of the display panel to display; and / or,

[0019] The display panel is provided with multiple data signal lines extending along the second direction and arranged in an interlaced manner with the grid lines. 。

[0020] The display device provided in this application, by setting a switch structure connected to a preset position in the grid line between the charging coil and the boundary, is used to disconnect multiple grid lines when the charging module is working, thereby preventing the electromagnetic waves emitted by the charging coil when the charging module is working from having an adverse effect on the display of the second area.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 This is a schematic diagram of a display device in related technology, showing a portion of the display area during charging;

[0024] Figure 2 This is a front view of a display device according to an embodiment of the present invention;

[0025] Figure 3 This is a partial structural cross-sectional view of a display device according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram illustrating a charging method using a screen-mounted charging mechanism according to an embodiment of the present invention;

[0027] Figure 5 This is a partial structural module diagram of a display device according to an embodiment of the present invention;

[0028] Figure 6 This is a partial structural schematic diagram of a display device according to an embodiment of the present invention;

[0029] Figure 7 This is a partial structural schematic diagram of another display device according to an embodiment of the present invention;

[0030] Figure 8 Is it like this? Figure 7 A partial cross-sectional view of the display device shown. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0032] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this invention pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” means two or more. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The words “above” and / or “below” and similar terms are for ease of description only and are not limited to a location or spatial orientation. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0033] For mobile phones or other electronic products that use screen-separated charging, especially those with high charging power, the display image can be affected if other areas are displaying information while charging, potentially causing a ripple-like interference effect. The inventors discovered that the frequency of the display image is close to the frequency of the electromagnetic waves emitted by the charging coil. These electromagnetic waves interfere with the grid lines (also known as GOA scan lines) within the screen, and then couple through the coupling capacitors on the scan lines and data signal lines (also known as data source lines) to the data source lines in other areas. This affects the charging of capacitors in the pixel drive circuit, thus impacting the display effect and causing the ripple-like interference phenomenon. Figure 1 The image displayed on the display screen 10' in the display device 100' shown.

[0034] Therefore, this application provides a display device. The display device includes a display panel, a charging module, and a switch structure. The display panel has a first region and a second region arranged in a first direction, the first region and the second region having a boundary extending along a second direction, and the display panel having multiple grid lines extending along the first direction and penetrating the first region and the second region; the second direction forms an angle with the first direction. The charging module includes a charging coil disposed inside the display panel, and the projection of the charging coil in the thickness direction of the display device is located within the first region; the switch structure is connected to a preset position among the multiple grid lines located between the charging coil and the boundary, and is used to disconnect the multiple grid lines when the charging module is working. The above-mentioned display device, by providing a switch structure connected to a preset position among the grid lines located between the charging coil and the boundary, is used to disconnect the multiple grid lines when the charging module is working, thereby preventing the electromagnetic waves emitted by the charging coil when the charging module is working from adversely affecting the display of the second region.

[0035] The display device mentioned in this application can be an electronic product with display function, such as a mobile phone or tablet computer. The display panel mentioned in this application can be a flexible AMOLED panel.

[0036] The following is in conjunction with the appendix Figures 2 to 8 The display device provided in this application will be described in detail.

[0037] Please refer to Figure 2 As shown, and combined where necessary. Figures 3 to 8 As shown, this application provides a display device 100, which includes a display panel 10, a charging module 20, a switch structure 30, a main board 70, and a device body with a housing 80. The display panel 10 can be assembled onto the device body. The display panel 10 and the housing 80 can form a device cavity. The charging module 20 and the main board 70 can be disposed in the device cavity.

[0038] The display device 100 mentioned here can be a foldable electronic device, such as a mobile phone or tablet computer.

[0039] The display panel 10 has a first region S1 and a second region S2 arranged in a first direction L. The first region S1 and the second region S2 have a boundary L1 extending along a second direction W, and the display panel 10 has a plurality of grid lines 11 extending along the first direction L and penetrating the first region S1 and the second region S2. The second direction W forms an angle with the first direction L.

[0040] The angle between the second direction W and the first direction L mentioned here can be a right angle, or it can be an acute angle.

[0041] Here, the first direction L is the length direction of the display device 100, and the second direction W is the width direction of the display device 100. In some other embodiments, the first direction L may also be the width direction of the display device, and the second direction W may be the length direction of the display device.

[0042] The display panel 10 has an outer surface 101 facing outward and an inner surface 102 facing the inner cavity of the device.

[0043] The charging module 20 includes a charging coil 21. The charging coil 21 is disposed on the inner side of the display panel 10, and the projection (i.e., orthographic projection) of the charging coil 21 in the thickness direction T of the display device 100 is located in the first region S1.

[0044] The charging coil 21 mentioned here is located inside the display panel 10. This can be understood as the charging coil 21 being located inside the device cavity, on the side where the inner surface 102 of the display panel 10 is located.

[0045] The display device may also be provided with a support 60 for mounting the charging coil 21 of the charging module 20.

[0046] The switch structure 30 is connected to a preset position 113 among the multiple grid lines 11 located between the charging coil 21 and the boundary L1, and is used to disconnect the multiple grid lines 11 when the charging module 20 is working.

[0047] Please combine Figure 6 As shown, Figure 6 The area indicated by reference numeral 103 can be understood as the projection area of ​​the charging coil in the thickness direction T of the display device 100.

[0048] The preset position 113 mentioned here can be any position between the boundary L1 and the projection of the charging coil 21 in the thickness direction T of the display device 100, for example... Figure 6 Any position driven by S10 as shown. Preferably, the preset position 113 can be relatively closer to the boundary L1.

[0049] The first region S1 has a first end 1001 that is away from the second region S2, and the second region S2 has a second end 1002 that is away from the first region S1. Each grid line 11 includes a first segment 111 extending from the preset position 113 toward the first end 1001, and a second segment 112 extending from the preset position 113 toward the second end 1002.

[0050] The phrase "disconnecting multiple grid lines 11 when the charging module 20 is working" can be understood as disconnecting the first segment 111 and the second segment 112 of the grid line 11 located on both sides of the preset position 113 when the charging module 20 is working. This is to prevent the signal in the first segment 111 of the grid line 11 from being transmitted to the second segment 112. In other words, the interference (i.e., interference signal) generated by the electromagnetic waves generated during the operation of the charging coil on the grid line 11 is only in the first segment 111 and will not be transmitted to the second segment 112.

[0051] It should be noted that when the charging module is not working, the switch structure can also make the grid line 11 in a connected or connectable state at the preset position 113, that is, the first segment 111 and the second segment 112 on both sides of the preset position are connected, and the signal can be transmitted between the two.

[0052] In some embodiments, the display device 100 may further be a screen outward folding device. Accordingly, the boundary L1 between the first region S1 and the second region S2 may be the outward folding position of the display device 100, that is, when the display device 100 is folded, it folds along the boundary L1, and after folding, most of the display panel 10 located in the first region S1 and most of the display panel 10 located in the second region S2 are opposite to each other, that is, most of the outer surface 101 of the display panel 10 located in the first region S1 and most of the display panel 10 located in the second region S2 are opposite to each other.

[0053] Accordingly, please combine Figure 5 As shown, when the display device 100 is charged using the wireless charger 200, the outer surface 101 of the display panel 10 faces the wireless charger 200. The charging coil 201 of the wireless charger 200 and the charging coil 21 of the charging module 20 cooperate with each other to charge the display device 100.

[0054] In some embodiments, the display device 100 further includes a driving module 50 and a control module 40. When the charging coil 21 starts to work, the control module 40 sends a gate line 11 disconnection signal to the driving module 50 to disconnect multiple gate lines 11. The driving module 50 drives the switching structure 30 to disconnect multiple gate lines 11 according to the gate line 11 disconnection signal.

[0055] The control module 40 can be a control circuit structure within the main control chip, which can be the motherboard 70 or a part of the motherboard 70. The driver module 50 can be a driver circuit structure within a driver chip (i.e., a driver IC) located on the motherboard 70 or separately.

[0056] In some embodiments, the charging module 20 includes a charging feedback unit (not shown) for sending a start charging signal to the control module 40 when the charging coil 21 starts working, and the control module 40 sends a gate line 11 disconnection signal to the drive module 50 to disconnect multiple gate lines 11 according to the start charging signal.

[0057] In some embodiments, the switch structure 30 is a thin-film transistor 31, which facilitates fabrication and control.

[0058] Of course, in some other embodiments, the switch structure 30 may also be other structures capable of controlling the connection and disconnection of the gate line 11.

[0059] Please combine Figure 7 As shown, in some embodiments, the switch structure 30 includes a plurality of thin-film transistors 31, each thin-film transistor 31 being disposed at the preset position 113 and correspondingly connected to a gate line 11. The thin-film transistor 31 includes a source 311, a drain 312, a gate 313, and an active layer 314. Specifically, one of the source 311 and drain 312 of each thin-film transistor 31 is connected to the first segment 111, and the other is connected to the second segment 112.

[0060] Please combine Figure 8 As shown, the display panel 10 may specifically include a substrate layer 15, a buffer layer 16, an interlayer dielectric layer 17, and a planarization layer 19 stacked sequentially. Gate lines 11 and gate gates 313 are disposed on the side of the buffer layer 16 opposite to the substrate layer 15 and are covered by the interlayer dielectric layer 17. Sources 311 and drains 312 are disposed on the side of the interlayer dielectric layer 17 opposite to the substrate layer 15 and are covered by the planarization layer 19. An active layer 314 is located within the buffer layer 16. The source 311 is connected to the active layer 314 and its corresponding gate line 11 via via leads, and the drain 312 is also connected to the active layer 314 and its corresponding gate line 11 via via leads.

[0061] In some embodiments, the display panel 10 is provided with a connecting line 14 extending along the second direction W, the connecting line 14 connecting the gates 313 (also called gates) of a plurality of thin film transistors 31, and the driving module 50 is connected to the connecting line 14.

[0062] It is understandable that the interconnect line 14 can be on the same layer as the gate 313 and formed synchronously using the same fabrication process, such as simultaneously etching the interconnect line 14 when etching the gate line.

[0063] In some embodiments, the display panel 10 includes a driving circuit layer, which includes driving transistors, and the switching structure 30 is formed in the same process as the driving transistors. This eliminates the need for special processes and additional masks, reducing the manufacturing cost of the switching structure and thus lowering the overall cost of the display panel 10 and the display device 100.

[0064] Please continue to combine Figure 7 As shown, in some embodiments, the preset position 113 is located on the side of the boundary L1 facing the first region S1, and is closer to the boundary L1. That is, the distance D2 between the preset position 113 and the projection of the charging coil 21 on the thickness direction T of the display device 100 is greater than the distance D1 between the preset position 113 and the boundary L1.

[0065] In some embodiments, the distance between the preset position 113 and the projection of the charging coil 21 on the thickness direction T of the display device 100 is greater than 5 mm, and the distance between the preset position 113 and the boundary L1 is greater than 3 mm, so as to avoid adverse effects on the switching structure 30 when the display device 100 is folded, and at the same time, to ensure that the transmission of interference signals in the grid line is reduced after the switching structure disconnects the grid line.

[0066] Please combine Figure 6 As shown, in some embodiments, the first region S1 has a first end 1001 facing away from the second region S2, and the second region S2 has a second end 1002 facing away from the first region S1. The display panel 10 includes a gate driving unit 13 located at the second end 1002. The gate driving unit 13 is connected to multiple gate lines 11 and is connected to the driving module 50. When the charging module 20 is working, the control module 40 can drive the gate driving unit 13 to work by controlling the driving module 50, so as to control the second region S2 of the display panel 10 to display. It should be noted that the circuit structure in the driving module 50 used to drive the gate driving unit 13 to work and the circuit structure in the driving module 50 used to drive the switch structure 30 to disconnect the multiple gate lines 11 can be two different circuit structures.

[0067] Please continue to combine Figure 6 As shown, the display panel 10 is provided with a plurality of data signal lines 12 extending along the second direction W and intersecting with the gate lines 11, so as to provide data signals (i.e., datasources) to the pixel driving circuit in the driving circuit layer.

[0068] In this application, the structural embodiments and method embodiments described can complement each other without conflict.

[0069] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "multiple" and "several" refer to two or more unless otherwise expressly defined.

[0070] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. The invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0071] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A display device, characterized in that, include: A display panel has a first region and a second region arranged in a first direction, the first region and the second region having a boundary extending along a second direction, and the display panel having a plurality of grid lines extending along the first direction and penetrating the first region and the second region; the second direction has an angle with the first direction; A charging module includes a charging coil, which is disposed on the inner side of the display panel, and the projection of the charging coil in the thickness direction of the display device is located in the first region. A switch structure is connected to a preset position among the multiple gate lines located between the charging coil and the boundary, for disconnecting the multiple gate lines when the charging module is working.

2. The display device as claimed in claim 1, characterized in that, The display device further includes a driving module and a control module. When the charging coil starts to work, the control module sends a gate line disconnect signal to the driving module to disconnect multiple gate lines. The driving module drives the switching structure to disconnect multiple gate lines according to the gate line disconnect signal.

3. The display device as claimed in claim 2, characterized in that, The charging module includes a charging feedback unit, which is used to send a start charging signal to the control module when the charging coil starts working, and the control module sends a grid line disconnect signal to the drive module to disconnect multiple grid lines according to the start charging signal.

4. The display device as claimed in claim 2, characterized in that, The switch structure is a thin-film transistor.

5. The display device as claimed in claim 4, characterized in that, The switching structure includes multiple thin-film transistors, each thin-film transistor being located at the preset position and connected to a gate line. The first region has a first end that is away from the second region, and the second region has a second end that is away from the first region. Each gate line includes a first segment extending from the preset position toward the first end and a second segment extending from the preset position toward the second end. One of the source and drain of each thin-film transistor is connected to the first segment, and the other is connected to the second segment.

6. The display device as claimed in claim 5, characterized in that, The display panel is provided with a connecting line extending along a second direction, the connecting line connecting the gates of a plurality of thin-film transistors, and the driving module is connected to the connecting line.

7. The display device as claimed in claim 4, characterized in that, The display panel includes a driving circuit layer, which includes driving transistors. The switching structure and the driving transistors are formed in the same process.

8. The display device as claimed in claim 2, characterized in that, The display device is a foldable electronic device.

9. The display device as claimed in claim 8, characterized in that, The display device is an outward-folding screen device.

10. The display device as claimed in claim 8 or 9, characterized in that, The boundary is a folded position, and the distance between the preset position and the projection of the charging coil in the thickness direction of the display device is greater than the distance between the preset position and the boundary. The distance between the preset position and the projection of the charging coil in the thickness direction of the display device is greater than 5mm, and the distance between the preset position and the boundary is greater than 3mm.

11. The display device as claimed in claim 9, characterized in that, The first region has a first end opposite to the second region, and the second region has a second end opposite to the first region; the display panel includes a gate driving unit located at the second end, the gate driving unit is connected to a plurality of gate lines, and the gate driving unit is connected to the driving module. When the charging module is working, the control module can drive the gate driving unit to work by controlling the driving module, so as to control the second region of the display panel to display; and / or, The display panel is provided with multiple data signal lines that extend along the second direction and are arranged in an alternating pattern with the grid lines.

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