CN109116649B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN109116649B CN109116649B CN201811120833.6A CN201811120833A CN109116649B CN 109116649 B CN109116649 B CN 109116649B CN 201811120833 A CN201811120833 A CN 201811120833A CN 109116649 B CN109116649 B CN 109116649B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
Abstract
The invention discloses a display panel and a display device, which relate to the technical field of display, are provided with a display area and a non-display area, and comprise: the lower substrate, the upper substrate and the upper polaroid are oppositely arranged; wherein, the infrabasal plate includes: the first substrate comprises a first area and a second area smaller than the first area, the second area is positioned at one side edge of the first area, and the orthographic projection of the upper substrate on the plane of the first substrate is superposed with the first area; the flexible substrate comprises a plane part and a bent part, the plane part covers one side surface of the first substrate facing the upper substrate, and the bent part is bent towards one side surface of the first substrate away from the upper substrate; the array layer is positioned on the plane part; the binding area is positioned at the bending part; and the electrostatic conduction gasket is positioned in the second area, and the upper polaroid and the electrostatic conduction gasket are electrically connected through the conductive adhesive. The electrostatic conduction gasket is arranged in the second area, so that the connection reliability of the electrostatic conduction gasket, the conductive adhesive and the upper polaroid is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
From the CRT (Cathode Ray Tube) era to the liquid crystal era and now to the OLED (Organic Light-Emitting Diode) era, the display industry has been developing over decades. The display industry is closely related to our lives, and display technologies cannot be separated from traditional mobile phones, flat panels, televisions and PCs, to current intelligent wearable devices and VRs.
Static electricity is usually generated in the display device, and if the static electricity exists in the display device and is not led out in time, the existence of the static electricity may open circuits around the display panel, resulting in abnormal display, such as: redness, blueness, abnormal or even no indication, etc.
Therefore, how to reliably conduct the static electricity generated inside the display device to the outside becomes one of the technical problems to be solved at present.
Disclosure of Invention
In view of the above, the present invention provides a display panel and a display device, wherein a first substrate of a lower substrate includes a first region and a second region located at one side edge of the first region, and the second region corresponds to a planar portion of a flexible substrate; in the process of bending the bending part of the flexible substrate, because the electrostatic conduction gasket is positioned in the second area corresponding to the plane part, the influence of the bending stress on the electrostatic conduction gasket is very small and can be ignored, so that the possibility that the electrostatic conduction gasket and the conductive adhesive are separated and fall off in the bending process of the bending part is greatly reduced, the connection reliability of the electrostatic conduction gasket and the conductive adhesive and the connection reliability of the upper polarizer are favorably improved, and the electrostatic conduction reliability of the electrostatic conduction gasket is favorably improved.
In a first aspect, the present application provides a display panel having a display area and a non-display area surrounding the display area, comprising:
the lower substrate, the upper substrate and the upper polarizer are oppositely arranged, and the upper polarizer is positioned on one side of the upper substrate, which is far away from the lower substrate;
wherein the lower substrate includes:
the first substrate comprises a first area and a second area which is smaller than the first area in area, the second area is located at one side edge of the first area, and the orthographic projection of the upper substrate on the plane of the first substrate is superposed with the first area;
the flexible substrate comprises a plane part and a bent part, the plane part covers one side surface of the first substrate facing the upper base plate, and the bent part is bent towards one side surface of the first substrate facing away from the upper base plate;
the array layer is positioned on one side surface of the flexible substrate, which is far away from the first substrate, and is positioned on the plane part;
the binding region is positioned on one side surface of the flexible substrate, which is far away from the first substrate, and is positioned on the bending part;
and the electrostatic conduction gasket is positioned in the second area, and the upper polaroid and the electrostatic conduction gasket are electrically connected through conductive adhesive.
In a second aspect, the present application provides a display device, including a display panel, where the display panel is the display panel provided in the present application.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
in the display panel and the display device provided by the application, the flexible substrate comprises a plane part and a bending part, the plane part covers one side surface of the first substrate facing the upper substrate, the first substrate comprises a first area and a second area positioned at one side edge of the first area, and therefore the first area and the second area correspond to the plane part of the flexible substrate; the electrostatic conduction gasket is located in the second area and is electrically connected with the upper polaroid through the conductive adhesive, in the bending process of the bending part of the flexible substrate, the electrostatic conduction gasket is located in the second area corresponding to the plane part and is not located in the area corresponding to the bending part, the influence of the bending stress on the electrostatic conduction gasket and the conductive adhesive electrically connected with the electrostatic conduction gasket is small and negligible, and therefore the possibility that the electrostatic conduction gasket and the conductive adhesive are separated and fall off in the bending process of the bending part is greatly reduced, the connection reliability of the electrostatic conduction gasket, the conductive adhesive and the upper polaroid is favorably improved, and the static conduction reliability of the electrostatic conduction gasket is favorably improved.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a structural diagram of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of the display panel provided in the embodiment of FIG. 1;
FIG. 3 is a top view of a first substrate in a display panel according to an embodiment of the present application;
FIG. 4 is a schematic view of the connection of the electrostatic conductive pad in the display panel;
fig. 5 is a top view of a display panel according to an embodiment of the present application;
fig. 6 is a top view of another display panel provided in the embodiment of the present application;
fig. 7 is a diagram illustrating relative positions of an upper polarizer, a conductive paste, and an electrostatic conductive pad in a display panel according to an embodiment of the present disclosure;
fig. 8 is a diagram illustrating another relative position relationship between an upper polarizer, a conductive paste, and an electrostatic conductive pad in a display panel according to an embodiment of the present disclosure;
fig. 9 is a diagram illustrating another relative position relationship between an upper polarizer, a conductive paste, and an electrostatic conductive pad in a display panel according to an embodiment of the present disclosure;
fig. 10 is a partial top view of a display panel according to an embodiment of the present application;
FIG. 11 is a cross-sectional view of an array layer in a display panel according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Static electricity is usually generated in the display device, and if the static electricity exists in the display device and is not led out in time, the existence of the static electricity may open circuits around the display panel, resulting in abnormal display, such as: redness, blueness, abnormal or even no indication, etc.
Therefore, how to reliably conduct the static electricity generated inside the display device to the outside becomes one of the technical problems to be solved at present.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 1 is a structural diagram of a display panel according to an embodiment of the present invention, fig. 2 is a cross-sectional view of the display panel according to the embodiment of the present invention, fig. 3 is a top view of a first substrate of the display panel according to the embodiment of the present invention, and referring to fig. 1 to fig. 3, a display panel 100 having a display area 101 and a non-display area 102 surrounding the display area 101 includes:
the lower substrate 10 and the upper substrate 20 are oppositely arranged, and the upper polarizer 30 is positioned on one side of the upper substrate 20 far away from the lower substrate 10;
wherein, the lower substrate 10 includes:
a first substrate 11 including a first region and a second region 112 having a smaller area than the first region, the second region 112 being located at one side edge of the first region, and an orthographic projection of the upper substrate 20 on a plane on which the first substrate 11 is located being coincident with the first region;
a flexible substrate 40 including a planar portion 41 and a bent portion 42, the planar portion 41 covering a surface of the first substrate 11 on a side facing the upper base plate 20, and the bent portion 42 being bent toward a surface of the first substrate 11 on a side facing away from the upper base plate 20;
the array layer 12 is positioned on the surface of one side of the flexible substrate 40, which is far away from the first substrate 11, and is positioned on the plane part 41;
a bonding region 43 located on a surface of the flexible substrate 40 on a side away from the first substrate 11 and located at the bending portion 42;
the electrostatic conductive pad 50 is located in the second region 112, and the upper polarizer 30 and the electrostatic conductive pad 50 are electrically connected through the conductive paste 60.
Specifically, in the structure diagram of the display device 200 shown in fig. 1, the bending portion 42 of the flexible substrate 40 is not yet bent, and the cross-sectional diagram shown in fig. 2 represents a state after the bending portion 42 of the flexible substrate 40 is bent. It should be noted that the embodiment shown in fig. 2 is described by taking the liquid crystal display panel 100 as an example, in some other embodiments of the present application, the display panel 100 may also be an organic electroluminescence display panel, and the present application is not limited to this specifically. Referring to fig. 1-3, the lower substrate 10 includes a first substrate 11, where the first substrate 11 includes a first region and a second region 112 with a smaller area located at a side edge of the first region, it should be noted that the first region corresponds to other regions of the first substrate 11 except the second region 112, that is, the regions including the display region 101 and the non-display region 102 except the second region 112, and the second region 112 is completely located in the non-display region 102. The upper substrate 20 is located at a position corresponding to the first region, and the electrostatic conductive pad is fixed at a position corresponding to the second region 112 in the lower substrate 10 and is electrically connected to the upper polarizer 30 through the conductive adhesive 60. Since the circuit structure is generally disposed in the array layer 12 of the lower substrate 10, static electricity is generated inside the display panel 100. In the embodiment of the present application, the electrostatic conductive pad 50 is disposed on the lower substrate 10 at a position corresponding to the second region 112, and the electrostatic conductive pad 50 can conduct the static electricity generated by the lower substrate 10 to the outside of the display panel 100 through the conductive adhesive 60 and the upper polarizer 30, so that the influence of the static electricity on the display of the display panel 100 is favorably reduced, and the possibility of abnormal display of the display panel 100 due to the influence of the static electricity is reduced. In particular, in the display panel 100 provided in the embodiment of the present disclosure, the electrostatic conductive pad 50 is located in the second area 112 of the first substrate 11 and is not located in the area corresponding to the bending portion 42 of the flexible substrate 40, so that, in the bending process of the bending portion 42 of the flexible substrate 40, the influence of the bending stress on the electrostatic conductive pad 50 and the conductive adhesive 60 electrically connected to the electrostatic conductive pad 50 is very small and negligible, therefore, the possibility of separation and falling between the electrostatic conductive pad 50 and the conductive adhesive 60 during the bending process of the bending portion 42 is greatly reduced, which is beneficial to improving the connection reliability between the electrostatic conductive pad 50 and the conductive adhesive 60 and the upper polarizer 30, and is further beneficial to improving the reliability of electrostatic conduction of the electrostatic conductive pad 50.
It should be noted that, referring to fig. 2, in the display panel 100 provided in the embodiment of the present application, the bonding region 43 is used for bonding a driver chip and/or an FPC (Flexible Printed Circuit), and when the driver chip and/or the FPC is bonded to the bonding region 43, the driver chip and/or the FPC can be bent to the surface of the first substrate 11, which is away from the upper substrate 20, through the Flexible substrate 40, so that the space of the non-display region 102 of the display panel 100 can be effectively reduced, thereby facilitating the implementation of a narrow frame design.
The connection relationship of the electrostatic conductive pad 50 in the display panel 100 is described below with reference to fig. 4, in which fig. 4 is a schematic diagram illustrating a connection of the electrostatic conductive pad in the display panel, and referring to fig. 4, on one hand, the electrostatic conductive pad 50 is electrically connected to the upper polarizer 30 through the conductive adhesive 60 for conducting the static electricity generated in the display panel; on the other hand, the flexible circuit board 88 is bound on the flexible substrate 40, and is electrically connected with the lower substrate through the flexible substrate 40, and a ground terminal GND is arranged in the flexible circuit board 88; the static electricity conducting pad 50 is electrically connected to the ground GND of the flexible circuit board 88 through the connecting lead 87 and the electrical connecting terminal 89, so that when static electricity is generated in the display panel, the static electricity conducting pad 50 can smoothly conduct the static electricity to the outside of the display panel, thereby preventing the static electricity from affecting the display of the display panel. It should be noted that fig. 4 is only a schematic illustration of the connection relationship of the electrostatic conductive pad, and does not represent the actual film structure.
Optionally, fig. 5 is a top view of the display panel 100 according to the embodiment of the present disclosure, please refer to fig. 5, in which the second region 112 is located on a side of the first substrate 11 close to the bending portion 42. Referring to fig. 3 and 5, an orthographic projection of the upper substrate 20 on the plane of the first substrate 11 coincides with the first region, a region of the first substrate 11 that is not coincident with the upper substrate 20 is a second region 112, and the electrostatic conductive pad 50 is located in the second region 112. In general, in the view shown in fig. 5, the non-display regions 102 on both sides of the display panel 100 are provided with the driving circuits, and the non-display regions 102 on the bottom of the display panel 100 are provided with the step wirings, but in this embodiment, when the second region 112 is disposed on one side of the first substrate 11 close to the bending portion 42, that is, at the corner positions of the bottoms on both sides of the first substrate 11, the influence on the arrangement of the existing circuit structure and wiring structure on the display panel 100 is very small and negligible, so the process of disposing the electrostatic conductive pad 50 on the second region 112 and electrically connecting the electrostatic conductive pad 50 with the upper polarizer 30 is easy to be implemented, which is beneficial to simplifying the production process of the display panel 100 and improving the production efficiency.
Optionally, with continuing to refer to fig. 3 and fig. 5, the second area 112 at least includes a first edge 121 and a second edge 122 disposed oppositely, the first edge 121 is located on a side of the second edge 122 close to the display area 101; the first edge 121 coincides with an orthographic projection of a portion of the edge of the upper base plate 20 on the plane of the first substrate 11.
Specifically, referring to fig. 3 and fig. 5, in the display panel 100 provided in the embodiment of the present application, after the upper substrate 20 is projected onto the first substrate 11, the orthographic projection of the upper substrate 20 on the first substrate 11 completely coincides with the first area, in this embodiment, the first edge 121 in the second area 112 completely coincides with the orthographic projection of the edge of the upper substrate 20 close to the second area 112 on the plane where the first substrate 11 is located, and the areas of the first substrate 11 that are not overlapped with the upper substrate 20 are both the second area 112, so that the space size of the second area 112 can meet the requirement of the placement space of the electrostatic conductive pad 50 as much as possible.
Optionally, with continued reference to fig. 3 and 5, the first edge 121 and the second edge 122 in this embodiment are both arcuate. In general, in order to design the display panel 100 to be more beautiful, the corners of the display panel 100 are designed to have an arc structure, such as the arc structure shown in fig. 3 and 5. In the view shown in fig. 3 and 5, when the edge of the first substrate 11 is designed to be arc-shaped, the other side corresponding to the second region 112 is also designed to be arc-shaped, so that the second region 112 can be provided with the electrostatic conductive pad 50 by sufficient space, and in addition, the space of the second region 112 can be reasonably utilized, thereby being also beneficial to realizing the narrow bezel design of the display panel 100.
Alternatively, with continued reference to FIG. 3, the maximum distance between the first edge 121 and the second edge 122 is D1, 100 μm ≦ D1 ≦ 2000 μm. Specifically, in the embodiment shown in fig. 3, the maximum distance between the first edge 121 and the second edge 122 of the second region 112 is set to be between 100 μm and 2000 μm, and when the maximum distance between the two is greater than or equal to 100 μm, the distance can accommodate an electrostatic conductive pad with an edge of 100 μm, so that the size requirement of the electrostatic conductive pad for the space can be satisfied. In addition, when the maximum distance between the first edge 121 and the second edge 122 is set to be less than or equal to 2000 micrometers, the space occupied by the second region 112 is not too large, so that the size of the space of the non-display area 102 on the display panel 100 is reduced, the width of the frame is reduced, and the narrow frame design of the display panel 100 is facilitated.
It should be noted that, in the embodiment shown in fig. 3 and fig. 5, the edge of the second region 112 is in an arc-shaped structure, in the practical application process, an electrostatic conductive pad may be disposed in the entire second region 112, and then the electrostatic conductive pad is electrically connected to the upper polarizer 30 through the conductive adhesive 60, so that the contact area between the electrostatic conductive pad and the conductive adhesive 60 may be increased, which is favorable for improving the reliability of the electrical connection between the conductive pad and the conductive adhesive 60, and is favorable for reliably conducting the static electricity in the display panel 100 to the outside of the display panel 100.
Alternatively, FIG. 6 shows another top view of the display panel 100 provided in the embodiment of the present application, in the embodiment shown in FIG. 6, the second region 112 has a rectangular shape, the rectangular shape includes a third side 123 and a fourth side 124 disposed oppositely, the third side 123 is located on a side of the fourth side 124 close to the display area 101, a distance between the third side 123 and the fourth side 124 is D2, and D2 ≧ 200 μm.
Specifically, FIG. 6 provides another embodiment of the second region 112, in which no arc-shaped structure is disposed at the frame position of the display panel 100, and correspondingly, the second region 112 has a rectangular structure, in which the distance between the third edge 123 and the fourth edge 124 disposed oppositely is greater than or equal to 200 μm, so as to reserve enough space for disposing the static electricity conducting pads 50. In this embodiment, the electrostatic conductive pad 50 may be disposed on the entire second region 112 to increase the contact area between the electrostatic conductive pad 50 and the conductive adhesive 60, so as to be beneficial to improving the reliability of the electrical connection between the electrostatic conductive pad 50 and the conductive adhesive 60, and further beneficial to reliably conducting the static electricity in the display panel 100 to the outside of the display panel 100.
Optionally, referring to fig. 5 and 6, an edge of the upper substrate 20 on a side close to the bending portion 42 at least partially coincides with an edge of the first substrate 11 on a side close to the bending portion 42.
In the embodiments shown in fig. 5 and 6, in particular, the orthographic projection of the edge of the upper base plate 20 on the side close to the bent portion 42 on the plane of the first substrate 11 is coincident with the partial edge of the first substrate 11 on the side close to the bent portion 42, that is, except for the second region 112, in the viewing angles shown in fig. 5 and 6, the edge of the upper base plate 20 located at the lowermost end overlaps with the edge of the first substrate 11 located at the lowermost end, and are all straight edges, so the design is favorable for simplifying the cutting procedure of the display panel 100 in the production process, when the edge of the lowermost end of the upper base plate 20 and the edge of the first substrate 11 are cut and formed, the same cutting track can be adopted by the two, different cutting tracks do not need to be respectively customized for different edges, therefore, the manufacturing process of the display panel 100 is simplified, and the manufacturing efficiency of the display panel 100 is improved.
Optionally, the present inventionIn the display panel 100 of the present embodiment, the area of the electrostatic conductive pad 50 is S, and S is greater than or equal to 0.01mm2。
Specifically, in the production process of the display panel 100, when the electrostatic conductive pad 50 and the upper polarizer 30 are electrically connected by the conductive adhesive 60, the embodiment of the present application designs the area of the electrostatic conductive pad 50 to be equal to or greater than 0.01mm2In the meantime, the dispenser can smoothly identify the position of the electrostatic conductive pad 50, thereby facilitating smooth completion of the electrical connection of the conductive adhesive 60 with the electrostatic conductive pad 50 and the upper polarizer 30, and also facilitating improvement of the production efficiency of the display panel 100.
Alternatively, fig. 7 is a diagram illustrating a relative position relationship among the upper polarizer 30, the conductive adhesive 60 and the electrostatic conductive pad 50 in the display panel 100 provided in this embodiment of the present application, fig. 8 is a diagram illustrating another relative position relationship among the upper polarizer 30, the conductive adhesive 60 and the electrostatic conductive pad 50 in the display panel 100 provided in this embodiment of the present application, fig. 9 is a diagram illustrating another relative position relationship among the upper polarizer 30, the conductive adhesive 60 and the electrostatic conductive pad 50 in the display panel 100 provided in this embodiment of the present application, referring to fig. 7-9, in the display panel 100 provided in this embodiment of the present application, the electrostatic conductive pad 50 has a rectangular shape, the length of the rectangular shape is a, and the width of the rectangular shape is b, wherein a is greater than or equal to 100 μm, and b is greater than or equal to 100 μm. When the electrostatic conductive pad 50 is designed to be rectangular, the process is easy to implement, which is beneficial to improving the production efficiency of the display panel 100. Meanwhile, when the length and the width of the rectangle are respectively set to be more than or equal to 100 mu m, the area of static electricity conduction satisfies more than or equal to 0.01mm2The dispenser can smoothly identify the position of the electrostatic conductive pad 50 in the process of electrically connecting the upper polarizer 30 and the electrostatic conductive pad 50 by using the conductive adhesive 60, thereby simplifying the production process.
Optionally, in the display panel 100 provided in the embodiment of the present application, the conductive adhesive 60 is silver adhesive. Typically, silver paste is a viscous slurry of a mechanical mixture of fine particles of high purity (99.9%) metallic silver, binder, solvent, and adjuvant. In some other embodiments of the present application, other conductive materials may be used instead of the silver paste, which is not specifically limited in the present application. There are various ways of applying the silver paste, for example, a dot type silver paste shown in fig. 7, a stripe type silver paste shown in fig. 8, and an L type silver paste shown in fig. 9 may be used, which is not particularly limited in the present application.
Optionally, fig. 10 is a partial top view of the display panel 100 according to the embodiment of the present disclosure, referring to fig. 10, the display panel 100 further includes a sealant 80 located in the non-display region 102, the lower substrate 10 and the upper substrate 20 are bonded by the sealant 80, and an edge of an orthogonal projection of the sealant 80 on the plane of the first substrate 11 is parallel to an edge of an orthogonal projection of the upper substrate 20 on the plane of the first substrate. The sealant 80 is used for adhering the upper substrate 20 and the lower substrate 10, and since the area of the upper substrate 20 is slightly smaller than the area of the lower substrate 10 (equivalent to the area of the two second regions 112), when the sealant is used for adhering the upper substrate 20 and the lower substrate 10, and the sealant is formed along the track of the edge of the upper substrate 20, that is, when the edge of the orthographic projection of the sealant on the plane of the substrate of the first substrate 11 is parallel to the edge of the orthographic projection of the upper substrate 20 on the plane of the first substrate, the sealant can reliably fix the upper substrate 20 and the lower substrate 10, and can reduce the space occupied by the sealant in the non-display region 102, thereby reducing the frame width of the display panel 100 and realizing the narrow frame design of the display panel 100.
Alternatively, fig. 11 is a cross-sectional view of the array layer 12 in the display panel 100 provided in this embodiment of the application, where the array layer 12 includes a first metal layer 91 and a second metal layer 92, the first metal layer 91 is located on a side of the second metal layer 92 close to the flexible substrate 40, and the electrostatic conductive pad 50 is disposed in the same layer as the first metal layer 91 or the second metal layer 92.
Specifically, referring to fig. 11, the array layer 12 generally includes a semiconductor active layer 93, a gate insulating layer 94, a first metal layer 91, an interlayer insulating layer 95 and a second metal layer 92, which are sequentially disposed on the flexible substrate 40, and in general, the array layer 12 is distributed in the display area 101 of the display panel 100, in order to timely conduct the static electricity generated in the display panel 100 to the outside of the display panel 100, in conjunction with fig. 2 and 11, the present application arranges the static electricity conducting pad 50 in the same layer as the first metal layer 91 or the second metal layer 92 in the array layer 12 (fig. 11 shows that the static electricity conducting pad 50 is arranged in the same layer as the second metal layer 92), and electrically connects the static electricity conducting pad 50 with the upper polarizer 30 through the conductive adhesive 60, so that, when the static electricity is generated in the display panel 100, the static electricity can be conducted to the outside of the display panel 100 through the static electricity conducting pad 50 → the upper polarizer 30, to reduce the influence of static electricity on the display of the display panel 100. It should be noted that, in fig. 11, the array layer 12 is illustrated by taking the thin film transistor 90 with a top gate structure as an example, that is, the first metal layer 91 is located on the side of the semiconductor active layer away from the flexible substrate 40, and besides this way, the thin film transistor 90 in the array layer 12 may also be embodied as a bottom gate structure, that is, the first metal layer 91 is located on the side of the semiconductor active layer 93 close to the flexible substrate 40, which is not specifically limited in this application.
Based on the same inventive concept, the present application further provides a display device 200, and fig. 12 is a schematic structural diagram of the display device 200 provided in the embodiment of the present application, and referring to fig. 12, the display device 200 includes a display panel 100, which is the display panel 100 provided in the embodiment of the present application. For an embodiment of the display device 200, reference may be made to the above-mentioned embodiment of the display panel 100, and repeated descriptions are omitted. The display device 200 provided by the present application may be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following advantages:
in the display panel and the display device provided by the application, the flexible substrate comprises a plane part and a bending part, the plane part covers one side surface of the first substrate facing the upper substrate, the first substrate comprises a first area and a second area positioned at one side edge of the first area, and therefore the first area and the second area correspond to the plane part of the flexible substrate; the static conduction liner is located the second region and passes through the conducting resin electricity with last polaroid and be connected, in the in-process that the kink of flexible substrate was buckled, because the static conduction liner is located the second region that corresponds with plane portion, the influence of the stress of buckling to static conduction liner and the conducting resin of being connected with static conduction liner electricity is very little, can ignore, consequently, the possibility that takes place to separate between static conduction liner and the conducting resin and drops in the kink buckling process has been reduced greatly, thereby be favorable to promoting the connection reliability between static conduction liner and infrabasal plate and the last polaroid, and then be favorable to promoting the static conduction liner and conduct the reliability of static.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (7)
1. A display panel having a display area and a non-display area surrounding the display area, comprising:
the lower substrate, the upper substrate and the upper polarizer are oppositely arranged, and the upper polarizer is positioned on one side of the upper substrate, which is far away from the lower substrate;
wherein the lower substrate includes:
a first substrate including a first region and a second region having a smaller area than the first region, the second region being located at one side edge of the first region, and the second region being located only at a corner of the first substrate; the orthographic projection of the upper substrate on the plane of the first substrate is superposed with the first area;
the flexible substrate comprises a plane part and a bent part, the plane part covers one side surface of the first substrate facing the upper base plate, and the bent part is bent towards one side surface of the first substrate facing away from the upper base plate; the edge of one side, close to the bending part, of the upper base plate is at least partially overlapped with the edge of one side, close to the bending part, of the first substrate;
the array layer is positioned on one side surface of the flexible substrate, which is far away from the first substrate, and is positioned on the plane part;
the binding region is positioned on one side surface of the flexible substrate, which is far away from the first substrate, and is positioned on the bending part;
the electrostatic conduction gasket is positioned in the second area, and the upper polaroid and the electrostatic conduction gasket are electrically connected through conductive adhesive;
the second region is located on one side, close to the bending part, of the first substrate, the second region at least comprises a first edge and a second edge which are arranged oppositely, and the first edge is located on one side, close to the display area, of the second edge; the first edge is superposed with the orthographic projection of part of the edge of the upper base plate on the plane of the first substrate; the first edge and the second edge are both arc-shaped, the maximum distance between the first edge and the second edge is D1, and D1 is more than or equal to 100 mu m and less than or equal to 2000 mu m.
2. The display panel of claim 1, wherein the electrostatic conductive pad has an area S, S being 0.01mm or more2。
3. The display panel of claim 2, wherein the electrostatic conducting pad has a rectangular shape with a length of a and a width of b, wherein a is greater than or equal to 100 μm and b is greater than or equal to 100 μm.
4. The display panel according to claim 1, wherein the conductive paste is silver paste.
5. The display panel according to claim 1, further comprising a sealant located in the non-display region, wherein the lower substrate and the upper substrate are bonded by the sealant, and an edge of an orthographic projection of the sealant on a plane where the first substrate is located is parallel to an edge of an orthographic projection of the upper substrate on a plane where the first substrate is located.
6. The display panel of claim 1, wherein the array layer comprises a first metal layer and a second metal layer, the first metal layer is located on a side of the second metal layer adjacent to the flexible substrate, and the electrostatic conducting pad is disposed on a same layer as the first metal layer or the second metal layer.
7. A display device comprising the display panel according to any one of claims 1 to 6.
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| CN109980123A (en) | 2019-03-19 | 2019-07-05 | 武汉华星光电半导体显示技术有限公司 | The preparation method and display panel of rigid OLED display panel |
| CN110335543B (en) * | 2019-04-30 | 2022-01-14 | 上海天马微电子有限公司 | Flexible display panel, manufacturing method thereof and flexible display device |
| CN110910758B (en) | 2019-12-17 | 2022-06-03 | 厦门天马微电子有限公司 | Display substrate, display module and control method thereof |
| CN111179759B (en) * | 2020-02-12 | 2022-01-28 | 京东方科技集团股份有限公司 | Folding structure and folding display device |
| CN112835222A (en) * | 2021-01-05 | 2021-05-25 | 武汉华星光电技术有限公司 | Display device and manufacturing method thereof |
| CN115311943B (en) * | 2022-07-27 | 2023-08-01 | 武汉天马微电子有限公司 | Display module and display device |
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