CN107845643B - Display panel and display device - Google Patents
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- CN107845643B CN107845643B CN201710873701.XA CN201710873701A CN107845643B CN 107845643 B CN107845643 B CN 107845643B CN 201710873701 A CN201710873701 A CN 201710873701A CN 107845643 B CN107845643 B CN 107845643B
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- 229920001721 polyimide Polymers 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
- H01L27/1244—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits for preventing breakage, peeling or short circuiting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1248—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and can reduce the force applied to a bending area of the display panel during bending so as to relieve the problem that wires at the bending part are easy to break due to the fact that the display panel is broken after being bent, and improve the reliability of the wires in the bending area. On one hand, the display panel is provided with a first non-bending area, a bending area and a second non-bending area, and the bending area is positioned between the first non-bending area and the second non-bending area; the display panel comprises a first flexible substrate, a dielectric layer and a second flexible substrate, wherein the dielectric layer is positioned between the first flexible substrate and the second flexible substrate; the signal routing is overlapped with the bending area; the organic layer is positioned between the first flexible substrate and the signal routing, and covers the bending area; at least one of the dielectric layer and the second flexible substrate is not overlapped with the bending area.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
With the development and progress of electronic technology, electronic display devices are widely used in various industries, and currently, display devices are developing toward narrowing the edge, that is, the non-display area of the display device is becoming smaller and smaller, so it is desirable to arrange some circuits and wirings in the non-display area on the opposite side of the display area by bending and the like to realize narrowing the edge.
In the prior art, when a display panel of the display device is bent, the display panel is prone to crack in a bending area under the action of force generated by bending, and the service life of the display panel is shortened.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display device, which can alleviate the problem that when the display panel is bent, the bent portion is easily broken, so that the routing at the bent portion is easily broken, thereby improving the reliability of the routing at the bent portion, and further improving the service life of the display panel.
In one aspect, embodiments of the present invention provide a display panel,
the display panel is provided with a first non-bending area, a bending area and a second non-bending area, and the bending area is positioned between the first non-bending area and the second non-bending area;
the display panel comprises a first flexible substrate, a dielectric layer and a second flexible substrate, wherein the dielectric layer is positioned between the first flexible substrate and the second flexible substrate;
the signal routing is overlapped with the bending area;
the organic layer is positioned between the first flexible substrate and the signal wiring, and covers the bending area;
at least one of the dielectric layer and the second flexible substrate is not overlapped with the bending area.
On the other hand, the embodiment of the invention also provides a display device, which comprises any one of the display panels.
According to the display panel and the display device provided by the embodiment of the invention, the bending area of the display panel is arranged in a way that the dielectric layer and at least one layer of the second flexible substrate are not overlapped in the bending area, namely, the bending area of the display panel does not contain at least one layer of the dielectric layer and the second flexible substrate, so that the thickness of the display panel can be reduced, the force applied to the bending area of the display panel during bending is reduced, the problem that the display panel is broken after being bent, the routing at the bending part is easy to break is solved, and the reliability of the routing of the bending area is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a top view of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of the display panel shown in FIG. 1 at AA, in the orientation of the present invention;
fig. 3 is a schematic sectional view of another display panel provided by an embodiment of the present invention;
fig. 4 is a partially schematic cross-sectional view of another display panel provided by the embodiment of the invention;
fig. 5 is a partially schematic cross-sectional view of another display panel provided by the embodiment of the invention;
fig. 6 is a partially schematic cross-sectional view of another display panel provided by the embodiment of the invention;
fig. 7 is a partially schematic cross-sectional view of another display panel provided by the embodiment of the invention;
fig. 8 is a partially schematic cross-sectional view of another display panel provided by the embodiment of the invention;
fig. 9-11 are schematic structural diagrams corresponding to steps in a first method for manufacturing a display panel according to an embodiment of the invention;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that although the terms first, second, etc. may be used to describe the flexible substrate in embodiments of the present invention, these flexible substrate should not be limited by these terms. These terms are only used to distinguish the flexible base substrates from each other. For example, the first flexible substrate may also be referred to as a second flexible substrate, and similarly, the second flexible substrate may also be referred to as a first flexible substrate without departing from the scope of embodiments of the present invention.
As shown in fig. 1 and fig. 2, fig. 1 is a top view of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view of the display panel shown in fig. 1 in the direction AA. The display panel includes a display area 301 and a non-display area 302 located outside the display area; the display area 301 is located in the first non-bending region 110, and the bending region 120 and the second non-bending region 130 are located in the non-display area 302.
The display panel provided by the embodiment of the invention has a first non-bending region 110, a bending region 120 and a second non-bending region 130, wherein the bending region 120 is located between the first non-bending region 110 and the second non-bending region 130. The display panel comprises a first flexible substrate base plate 140, a dielectric layer 150 and a second flexible substrate base plate 160, wherein the dielectric layer 150 is positioned between the first flexible substrate base plate 140 and the second flexible substrate base plate 160; and a signal trace 170 overlapping the bending region 120. The organic layer 180, the organic layer 180 is located between the first flexible substrate 140 and the signal trace 170, and the organic layer 180 covers the bending region 120; at least one of the dielectric layer 150 and the second flexible substrate 160 does not overlap the bending region 120.
The first flexible substrate 140, the dielectric layer 150, and the second flexible substrate 160 together form a substrate of the display panel. Since the first flexible printed circuit board 140 and the second flexible printed circuit board 160 are generally formed of an insulating material having flexibility (for example, a polymer material such as polyimide, polycarbonate, polyethersulfone, polyethylene terephthalate, or ethylene glycol), the first flexible printed circuit board 140 and the second flexible printed circuit board 160 have high flexibility, and a printed circuit board formed only of the first flexible printed circuit board 140 and the second flexible printed circuit board 160 is likely to be curled, so that other structures in the display panel are not easily attached to the printed circuit board. Therefore, in order to solve this problem, a dielectric layer 150 is required to be disposed between the first flexible substrate 140 and the second flexible substrate 160, and the dielectric layer 150 has a certain hardness, so as to alleviate the substrate curling phenomenon.
Specifically, the dielectric layer 150 may include inorganic materials such as silicon nitride and/or silicon oxide, which are brittle and easily crack under a force, and when the bending region 120 is bent, the force generated by bending acts on the dielectric layer 150, so that the dielectric layer 150 cracks, and even the dielectric layer 150 falls off. The dielectric layer 150 is damaged, and the substrate of the display panel is curled to cause the signal wiring 170 in the display panel to be disconnected, so that some structures arranged on the substrate fall off, and the display panel works abnormally. Therefore, in order to alleviate the influence of the bent region 120 on the dielectric layer 150, the display panel provided in the embodiment of the invention etches away the layer structure of the dielectric layer 150 and/or the second flexible substrate 160 in the bent region 120, so as to reduce the thickness of the bent region 120 of the display panel, and reduce the force applied to the bent region 120 during bending, so that the probability of breaking or falling off the dielectric layer and other structures during bending is reduced.
Specifically, three display panel structures are provided according to the film layer etched away from the bending region 120, and the display panel shown in fig. 2 is a structure in which the dielectric layer 150 and the second flexible substrate 160 are both not overlapped with the bending region 120; in the display panel shown in fig. 3, the second flexible substrate 160 in the bending region 120 is etched away, so that the second flexible substrate 160 does not overlap with the bending region 120; in the display panel shown in fig. 4, the dielectric layer 150 in the bending region 120 is etched away, so that the dielectric layer does not overlap with the bending region 120.
In the display panel structure shown in fig. 2 and 4, the dielectric layer 150 is not overlapped with the bending region 120, so that the dielectric layer is not affected after the display panel is bent, thereby solving the problem that the dielectric layer 150 is broken due to bending of the display panel; in the display panel structure shown in fig. 3, the second flexible substrate 160 is not overlapped with the bending region 120, so that the thickness of the bending region 120 is reduced, the pressure applied to the dielectric layer 150 is reduced, and the problem of breakage of the dielectric layer 150 can be effectively alleviated.
It should be noted that, as shown in fig. 4, the first flexible substrate 140 in the bending region 120 directly contacts the second flexible substrate 160, and the second flexible substrate 160 in the bending region 120 is on the same horizontal plane as the first non-bending region 110 and the second flexible substrate in the second non-bending region 130. Because the second flexible substrate 160 has good bending performance and is not easy to break when bent, and the second flexible substrate 160 directly contacts with the first flexible substrate 140, it is avoided that the second flexible substrate 160 deforms toward the direction close to the first flexible substrate 140 due to a certain space between the second flexible substrate 160 and the first flexible substrate 140 in the bending region 120 after the formed organic layer 180, and further the formed organic layer 180 cracks or falls off.
Comparing the three display panel structures, it can be understood that one more layer is etched away from the bending region 120 of the display panel shown in fig. 2 than the bending regions 120 of the other two display panels, and therefore, the bending region 120 of the display panel shown in fig. 2 is thinner than the bending regions 120 of the other two display panels, and the bending force is smaller, so that the film structures and other structures of the display panel shown in fig. 2 are less likely to break or fall off during bending.
The signal traces 170 include scan lines, data lines, and driving voltage lines for driving the devices in the display panel. As shown in fig. 2, the signal trace 170 bridges the first non-bending region 110, the bending region 120, and the second non-bending region 130, so that the first non-bending region 110 is electrically connected to the second non-bending region 130, and the first non-bending region 110 and the second non-bending region 130 are alternated.
It should be noted that, in the display panel described with reference to fig. 2 to fig. 4, since at least one of the dielectric layer 150 and the second flexible substrate 160 is not overlapped with the bending region 120, the bending region 120 has a groove relative to the first non-bending region 110 and the second non-bending region 130, and the signal trace 170 and/or the second flexible substrate 130 are deformed at the groove, so that the signal trace 170 and/or the second flexible substrate 130 are broken, thereby affecting the operation of the display panel. Therefore, in order to solve this problem, the groove is coated with an organic material such as acryl, the organic layer 180 is formed, and the formed organic layer 180 provides a flat surface for the upper surface of each film layer of the display panel. In addition, by adjusting the thickness of the organic layer 180, the gradient generated when the signal trace bridges the first non-bending region 110, the bending region 120, and the second non-bending region 130 can be less than 45 degrees, so that the problem of signal trace disconnection caused by steep gradient can be effectively avoided.
According to the display panel provided by the embodiment of the invention, the bending area of the display panel is arranged in a way that the dielectric layer and at least one layer of the second flexible substrate are not overlapped in the bending area, namely, the thickness of the display panel can be reduced by utilizing that the bending area of the display panel does not contain at least one layer of the dielectric layer and the second flexible substrate, so that the force applied to the bending area of the display panel during bending is reduced, the problem that the display panel is broken after being bent, the routing at the bending part is easy to break is solved, and the reliability of the routing of the bending area is improved.
As shown in fig. 5, fig. 5 is a structural diagram of another display panel according to an embodiment of the present invention, the display panel further includes an insulating layer 190, the insulating layer 190 is located on a side of the second flexible substrate 160 away from the first flexible substrate 140, the insulating layer 190 is disposed in the first non-bending region 110 and the second non-bending region 130, and the insulating layer 190 does not overlap with the bending region 120.
The insulating layer 190 includes a buffer layer, a gate insulating layer, an interlayer insulating layer, and the like, and the insulating layer 130 may be made of an inorganic material such as silicon oxide or silicon nitride. Wherein the buffer layer may include a single layer or a plurality of layers, the buffer layer may block oxygen and moisture, preventing diffusion of moisture or impurities through the substrate. Generally, a thin film transistor is disposed on a buffer layer, and a gate insulating layer and an interlayer insulating layer are disposed between electrodes of the thin film transistor to prevent a short circuit between the respective electrodes.
It should be noted that, since the insulating layer 190 includes a plurality of layers and the insulating layer has a certain brittleness, a crack is easily generated by a force, that is, when the insulating layer 190 is bent, the crack propagates and propagates, and an electrode of the thin film transistor may be short-circuited, thereby causing an abnormal operation of the display panel. Therefore, the display panel etches away the insulating layer 130 in the bending region 120, so that the insulating layer 130 is not overlapped with the bending region 120, thereby solving the problem that the insulating layer 190 is cracked when being bent, which causes abnormal operation of the display panel.
Specifically, an orthographic projection of the organic layer 180 of the display panel in fig. 5 on a plane where the insulating layer 190 is located overlaps the insulating layer 190 in the first non-bending region 110 and the insulating layer 190 in the second non-bending region 130. That is, the organic layer 180 in the display panel covers at least the groove formed by the etched insulating layer 190 in the bending region 120. The functions of the organic layer 180 are the same as those of the organic layer 180 described above, and are not described herein again.
As shown in fig. 6, the display panel further includes a protection layer 200, and the protection layer 200 is located on a side of the signal trace 170 away from the organic layer 180. The protection layer 200 is used to protect the signal trace 170, reduce the oxidation of moisture and oxygen to the signal trace, and prolong the service life of the signal trace.
Specifically, the protection layer 200 may include an organic material such as acryl, polyimide, or benzocyclobutene. The protection layer 200 can also be reused as a planarization layer of the display panel, and the reuse of the protection layer 200 and the planarization layer of the display panel can reduce the film arrangement of the display panel, thereby simplifying the manufacturing process flow of the display panel.
Further, in order to ensure that organic materials such as acrylic can be easily filled in the groove in the bending region when the bending region is coated, the embodiment of the invention provides another display panel, a schematic structural diagram of which is shown in fig. 7, wherein in a flat state of the display panel, a distance between the dielectric layer 150 in the first non-bending region 110 and the dielectric layer 150 in the second non-bending region 130 is a; the distance between the second flexible substrate 160 in the first non-bending region 110 and the second flexible substrate 160 in the second non-bending region 130 is b; the distance between the insulating layer 190 in the first non-bending region 110 and the insulating layer 190 in the second non-bending region 130 is c; wherein a is more than b and less than c.
It should be noted that distances between the dielectric layer 150, the second flexible substrate 160, and the insulating layer 190 in the first non-bending region 110 and corresponding layers in the second non-bending region 130 are a, b, and c, respectively, and making a < b < c can make corresponding step structures formed between the insulating layer 190 and the second flexible substrate 160 in the first non-bending region 110 and the second non-bending region 130, and between the second flexible substrate 160 and the dielectric layer 150, respectively. In the process of coating the organic material to form the organic layer 180, since the step has a certain gradient, the problem that the organic material is not easily coated in the junction region of the bending region 120 and the first non-bending region 110 and the second non-bending region 130 when the organic material is coated can be effectively solved, and thus, when the bending region can be coated with the organic material such as acrylic, the groove in the bending region can be easily filled.
As shown in fig. 8, fig. 8 is another display panel structure provided by the embodiment of the invention, the display panel is along the bending region 120, in the first non-bending region 110, the distance between the dielectric layer 150 and the bending region 120 is d1, the distance between the second flexible substrate 160 and the bending region 120 is d2, and the thickness of the second flexible substrate 160 is d3, where d2-d1 > d 3; in the second non-bending region 130, the distance between the dielectric layer 150 and the bending region 120 is e1, the distance between the second flexible substrate 160 and the bending region 120 is e2, and the thickness of the second flexible substrate 160 is e3, wherein e2-e1 > e 3.
Research shows that the difference between the distance between the dielectric layer 150 and the bending region 120 in the first non-bending region 110 and the second non-bending region 130 and the distance between the second flexible substrate 160 and the bending region 120 is greater than the thickness of the second flexible substrate 160, so that the gradient of the step formed at the second flexible substrate 160 in the first non-bending region 110 and the second non-bending region 130 of the display panel is gentle, and thus when an organic material is coated, a gap is not likely to occur at the boundary between the organic material and the second flexible substrate 160, and the formed organic layer 180 can be ensured to be fitted with the first non-bending region 110 and the second non-bending region 130; in addition, by setting the difference between the distance between the dielectric layer 150 and the bending region 120 in the first non-bending region 110 and the second non-bending region 130 and the distance between the second flexible substrate 160 and the bending region 120 to be greater than the thickness of the second flexible substrate 160, the disconnection of the signal trace 170 can be effectively alleviated.
On the basis of the above embodiment, as further shown in fig. 8, in the first non-bending region 110 of the display panel, the distance between the insulating layer 190 and the bending region 120 is d4, the thickness of the insulating layer 190 is d5, where d4-d2 > d 5; in the second non-bending region 130, the distance between the insulating layer 190 and the bending region 120 is e4, and the thickness of the insulating layer 190 is e5, wherein e4-e2 > e 5.
Research shows that the difference between the distance between the insulating layer 190 and the bending region 120 of the first non-bending region 110 and the second non-bending region 130 and the distance between the second flexible substrate 160 and the bending region 120 is larger than the thickness of the insulating layer 190, so that the gradient of the step formed at the insulating layer 190 is gentle, the boundary between the organic layer 180 and the insulating layer 190 is not prone to generating a gap, and the formed organic layer 180 can be better fitted with the first non-bending region 110 and the second non-bending region 130; in addition, the probability of wire breakage of the signal trace 170 can be further reduced.
It should be added that the present invention also provides two methods for manufacturing a display panel, which are described with reference to the display structure shown in fig. 7, the first method is, as shown in fig. 9 to fig. 11, to form four film layers, that is, a first flexible substrate 140, a dielectric layer 150, a second flexible substrate 160, and an insulating layer 190 in sequence, and then form a patterned display panel through a patterning process; then, the organic layer 180 and the signal trace 170 are formed. In another mode, when the display panel structure shown in fig. 7 is manufactured, the first flexible substrate 140 is formed first; then, a dielectric layer 150, a second flexible substrate 160, an insulating layer 190, an organic layer 180, and a signal trace 170 are sequentially formed, and in the process of forming the dielectric layer 150, the second flexible substrate 160, and the insulating layer 190, after each layer of structure is formed, a corresponding portion of the film is etched by using a patterning process, and then another film is sequentially formed.
It should be further noted that the two manufacturing methods described above are explained with reference to the display panel shown in fig. 7, and steps involved in the two manufacturing methods may be adaptively deleted, adjusted, and the like with reference to specific structures of the display panel, which is not limited in the present invention.
Optionally, the display panel may be an OLED display panel.
As shown in fig. 12, fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the display device according to the embodiment of the present invention includes: the display panel 100 described above.
The specific structure and principle of the display panel 100 are the same as those of the above embodiments, and are not described herein again. The display device may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, or a television.
In the display device provided by the embodiment of the invention, the bending area of the display panel is arranged in a way that the dielectric layer and at least one layer of the second flexible substrate are not overlapped in the bending area, namely, the thickness of the display panel can be reduced by utilizing that the bending area of the display panel does not contain at least one layer of the dielectric layer and the second flexible substrate, so that the force applied to the bending area of the display panel during bending is reduced, the problem that the display panel is broken after being bent and the routing at the bending part is easy to break is solved, the reliability of the routing at the bending area is improved, and the service life of the display panel is further prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (13)
1. A display panel is characterized in that a plurality of pixels are arranged in a matrix,
the display panel is provided with a first non-bending area, a bending area and a second non-bending area, and the bending area is positioned between the first non-bending area and the second non-bending area;
the display panel comprises a first flexible substrate, a dielectric layer and a second flexible substrate, wherein the dielectric layer is positioned between the first flexible substrate and the second flexible substrate;
the signal routing is overlapped with the bending area;
the organic layer is positioned between the first flexible substrate and the signal wiring, and covers the bending area;
at least one of the dielectric layer and the second flexible substrate is not overlapped with the bending area;
the first flexible substrate base plate, the dielectric layer and the second flexible substrate base plate jointly form a substrate base plate of the display panel, and the first flexible substrate base plate and the second flexible substrate base plate are formed by one or more of polyimide, polycarbonate, polyether sulfone, polyethylene terephthalate and glycol ester.
2. The display panel according to claim 1, further comprising:
the insulating layer is positioned on one side, far away from the first flexible substrate, of the second flexible substrate, the insulating layer is arranged in the first non-bending area and the second non-bending area, and the insulating layer is not overlapped with the bending areas.
3. The display panel according to claim 1,
the dielectric layer and the second flexible substrate are not overlapped with the bending area.
4. The display panel according to claim 2, further comprising:
and the protective layer is positioned on one side of the signal wiring, which is far away from the organic layer.
5. The display panel according to claim 2,
the orthographic projection of the organic layer on the plane of the insulating layer is overlapped with the insulating layer in the first non-bending area and the insulating layer in the second non-bending area.
6. The display panel according to claim 3,
in a flat state, a distance between the dielectric layer in the first non-bending region and the dielectric layer in the second non-bending region is a, a distance between the second flexible substrate in the first non-bending region and the second flexible substrate in the second non-bending region is b, and a distance between the insulating layer in the first non-bending region and the insulating layer in the second non-bending region is c;
wherein a is more than b and less than c.
7. The display panel according to claim 6,
along the bending region, in the first non-bending region, the distance between the dielectric layer and the bending region is d1, the distance between the second flexible substrate and the bending region is d2, and the thickness of the second flexible substrate is d3, wherein d2-d1 > d 3;
in the second non-bending region, the distance between the dielectric layer and the bending region is e1, the distance between the second flexible substrate and the bending region is e2, and the thickness of the second flexible substrate is e3, wherein e2-e1 is greater than e 3.
8. The display panel according to claim 7,
in the first non-bending region, the distance between the insulating layer and the bending region is d4, the thickness of the insulating layer is d5, wherein d4-d2 > d 5;
in the second non-bending region, the distance between the insulating layer and the bending region is e4, and the thickness of the insulating layer is e5, wherein e4-e2 > e 5.
9. The display panel according to claim 1,
the display panel comprises a display area and a non-display area positioned outside the display area;
the display area is located in a first non-bending area, and the bending area and the second non-bending area are located in the non-display area.
10. The display panel according to any one of claims 1 to 9,
the dielectric layer comprises silicon nitride and/or silicon oxide.
11. The display panel according to any one of claims 1 to 9,
the organic layer includes an acryl-based material.
12. The display panel according to any one of claims 1 to 9, wherein the display panel is an OLED display panel.
13. A display device characterized by comprising the display panel according to any one of claims 1 to 12.
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| CN201710873701.XA CN107845643B (en) | 2017-09-25 | 2017-09-25 | Display panel and display device |
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| CN201710873701.XA CN107845643B (en) | 2017-09-25 | 2017-09-25 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108305880B (en) | 2018-02-27 | 2021-05-07 | 京东方科技集团股份有限公司 | Flexible substrate, manufacturing method thereof and display device |
| CN108281475B (en) * | 2018-03-28 | 2020-07-28 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN108417608B (en) * | 2018-03-28 | 2021-03-09 | 上海天马微电子有限公司 | Flexible display panel and display device |
| CN108550603B (en) * | 2018-04-24 | 2020-12-11 | 云谷（固安）科技有限公司 | Flexible display panel, display device and manufacturing method thereof |
| CN108831908B (en) * | 2018-06-07 | 2020-12-22 | 武汉华星光电半导体显示技术有限公司 | Organic light-emitting diode display |
| CN108776552B (en) * | 2018-06-07 | 2021-07-09 | 上海中航光电子有限公司 | Display panel and display device |
| CN108962948B (en) * | 2018-07-04 | 2021-04-02 | 武汉华星光电半导体显示技术有限公司 | Array substrate and manufacturing method thereof |
| CN109087586B (en) * | 2018-07-18 | 2021-05-18 | 广州国显科技有限公司 | Display device and flexible display panel thereof |
| CN109062439B (en) * | 2018-08-09 | 2021-07-02 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN110969939A (en) * | 2018-09-28 | 2020-04-07 | 上海和辉光电有限公司 | Foldable display screen and display device |
| CN109494314B (en) * | 2018-10-16 | 2020-12-08 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED display panel and preparation method thereof |
| CN109545801B (en) * | 2018-12-12 | 2021-02-09 | 昆山国显光电有限公司 | Display panel and display device |
| CN109659320B (en) * | 2018-12-14 | 2021-03-16 | 武汉华星光电半导体显示技术有限公司 | Array substrate and display device with same |
| CN109671724B (en) * | 2018-12-21 | 2020-11-24 | 武汉华星光电半导体显示技术有限公司 | Light-emitting panel and display device |
| CN109873003A (en) * | 2019-02-27 | 2019-06-11 | 武汉华星光电半导体显示技术有限公司 | Array substrate and display device with the array substrate |
| CN109817691B (en) * | 2019-02-28 | 2021-04-30 | 上海天马微电子有限公司 | Display panel and display device |
| CN110444549B (en) * | 2019-08-14 | 2021-09-21 | 京东方科技集团股份有限公司 | Flexible display panel and manufacturing method thereof |
| CN113257836B (en) * | 2021-05-07 | 2022-08-05 | 武汉华星光电半导体显示技术有限公司 | Array substrate and display panel |
| CN114171538A (en) * | 2021-12-07 | 2022-03-11 | 深圳市华星光电半导体显示技术有限公司 | Display panel, display device and manufacturing method of display panel |
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| KR102611499B1 (en) * | 2015-12-15 | 2023-12-06 | 엘지디스플레이 주식회사 | Flexible display device |
| KR102465376B1 (en) * | 2017-06-16 | 2022-11-10 | 삼성디스플레이 주식회사 | Display apparatus and method for manufacturing the same |
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