Display panel and device

Abstract

The utility model discloses a display panel and a display device. The display panel comprises a display area and a non-display area, the display panel further comprises an isolation area located in the non-display area; the through hole area is located in the non-display area and located on the side, away from the display area, of the isolation area; the cutting channel region is located between the isolation region and the through hole region; the cutting channel region, the isolation region and the through hole region are respectively provided with a plurality of separation structures; the separating structure is used for separating the luminescent material. According to the technical scheme provided by the embodiment of the utility model, the separation structure is arranged in the cutting channel region, so that the thickness of the packaging layer deposited in the cutting channel region and the thickness of the packaging layer deposited in the isolation regions and the through hole regions at the two sides are kept uniform. Therefore, in the process of stripping the display panel from the glass back plate, the packaging layer in the cutting channel area is not easy to crack, the cracked crack is prevented from extending to the display area, the light-emitting material in the display area is prevented from being invaded by water and oxygen, the problem of display color lack caused by water and oxygen invasion is avoided, and the display effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display panels, and in particular to a display panel and a device. Background Art

[0002] During the peeling process of the glass backplane and base layer of the flexible display panel, the encapsulation layer in the cutting area of the flexible display panel is prone to cracking. The cracking of the encapsulation layer will cause water and oxygen to invade the organic light-emitting material of the display panel, thereby causing color deficiency in the display. Utility Model Content

[0003] The utility model provides a display panel and a device to solve the problem of display color deficiency caused by cracking of the encapsulation layer in the cutting area of the display panel during the peeling process between the base layer and the glass back plate, resulting in water and oxygen intrusion.

[0004] According to one aspect of the present invention, a display panel is provided, comprising a display area and a non-display area; the display panel further comprises:

[0005] an isolation area, located in the non-display area;

[0006] a through-hole area, located in the non-display area and on a side of the isolation area away from the display area;

[0007] The cutting street area is located between the isolation area and the through hole area; the cutting street area, the isolation area and the through hole area are respectively provided with a plurality of separation structures; the separation structures are used to separate the light-emitting material.

[0008] Optionally, the partition structure includes a partition column, and the display panel further includes: a glass back plate and a base layer;

[0009] A display function layer is located on a side of the substrate layer away from the glass back plate; the display function layer includes the luminescent material;

[0010] The encapsulation layer is located on a side of the display function layer away from the base layer, and covers the partition column and the display function layer; the encapsulation layer includes at least one inorganic encapsulation layer.

[0011] Optionally, in the cutting street area, the isolation area and the through hole area, a plurality of the separation columns are arranged at equal intervals.

[0012] Optionally, the separator column includes:

[0013] a first supporting layer, located on a side of the display functional layer away from the base layer;

[0014] a second supporting layer, located on a side of the first supporting layer away from the base layer;

[0015] The covering layer is located on a side of the second supporting layer away from the first supporting layer; the orthographic projection of the covering layer on the first supporting layer covers the second supporting layer.

[0016] Optionally, the first supporting layer and the luminescent material are provided in the same layer.

[0017] Optionally, the encapsulation layer further includes an organic encapsulation layer, and the organic encapsulation layer is located on a side of the at least one inorganic encapsulation layer away from the base layer.

[0018] Optionally, the inorganic encapsulation layer includes a first inorganic encapsulation layer and a second inorganic encapsulation layer, and the organic encapsulation layer is located between the first inorganic encapsulation layer and the second inorganic encapsulation layer.

[0019] Optionally, the first supporting layer and the covering layer are made of titanium, and the second supporting layer is made of aluminum.

[0020] Optionally, the base layer is made of polyimide material.

[0021] According to another aspect of the present invention, a display device is provided, comprising the display panel described in any one of the first aspects.

[0022] The technical solution provided by the embodiments of the present invention, by providing a separation structure in the scribe area, ensures that the thickness of the encapsulation layer deposited in the scribe area is uniform with that of the encapsulation layer deposited in the isolation areas and the through-hole areas on both sides. This ensures that the stress on the encapsulation layer in the scribe area is uniform during the peeling process of the display panel from the glass backplane, making it less likely to crack in the scribe area and preventing cracks from extending to the display area. This prevents the luminescent material in the display area from being infiltrated by water and oxygen, thereby avoiding the color loss caused by water and oxygen intrusion and improving the display quality of the display panel.

[0023] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the structure of a display panel provided for related technology;

[0026] Figure 2 A schematic structural diagram of a display panel provided by an embodiment of the present utility model;

[0027] Figure 3 A schematic structural diagram of another display panel provided by an embodiment of the present utility model;

[0028] Figure 4 This is a structural schematic diagram of another display panel provided by an embodiment of the present utility model. DETAILED DESCRIPTION

[0029] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] As described in the background art, the encapsulation layer in the cutting path area of the display panel is prone to cracking during the peeling process between the base layer and the glass backplane, causing water and oxygen to invade the luminescent material in the display area and cause the display to be color-deficient. Figure 1 A schematic diagram of the structure of a display panel provided for related technology, see Figure 1 The inventors have found that Figure 1The cutting path area OO of the display panel shown is set as a clearance setting, that is, the separation structure 100 is not set in the cutting path area OO. The clearance setting of the cutting path area OO will make the cutting path area OO relatively flat compared with the isolation area and the through-hole area on both sides. When preparing the encapsulation layer of the display panel, the encapsulation layer deposited in the cutting path area OO is thicker than the isolation area BB and the through-hole area CC on both sides. In the process of peeling the base layer of the display panel from the glass backplane, heat is generated and deformation occurs. If the thickness of the encapsulation layer in the cutting path area OO is too thick, the encapsulation layer in the cutting path area OO will be subjected to excessive stress and more prone to cracking. The cracks extend into the display area AA, which will cause water and oxygen to invade the luminescent material of the display area AA, causing the display to be color-deficient, affecting the display effect.

[0032] Based on the above reasons, the present invention provides a display panel. Figure 2 This is a schematic diagram of the structure of a display panel provided by an embodiment of the present utility model. Figure 2 The display panel includes a display area AA and a non-display area NAA; the display panel also includes: an isolation area BB, located in the non-display area NAA; a through-hole area CC, located in the non-display area NAA and located on the side of the isolation area BB away from the display area AA; a cutting street area OO, located between the isolation area BB and the through-hole area CC; the cutting street area OO, the isolation area BB and the through-hole area CC are respectively provided with a plurality of partition structures 100; the partition structure 100 is used to isolate the light-emitting material.

[0033] Specifically, the display panel can be a flexible display panel, and the through-hole area CC is the portion that needs to be cut in the non-display area NAA of the flexible display panel. The through-hole area CC after being cut can be used to set the camera lens. The cutting path area OO provides an identification function for the through-hole area CC to be cut, and when cutting along the cutting path area OO, it can ensure that the through-hole area CC to be cut is cut without damaging other areas. The isolation area BB is located between the cutting path area OO and the display area AA. The cutting path area OO, the isolation area BB and the through-hole area CC are respectively provided with a separation structure 100. The through-hole area CC and the cutting path area OO after being cut are separated from the display area AA by the separation structure 100 provided on the isolation area BB. The separation structure 100 provided in the isolation area BB can block the light-emitting material of the display area AA from being connected to the outside world, thereby preventing water and oxygen from invading the light-emitting material of the display area AA from the side. The separation structure 100 set in the cutting path area OO can maintain uniform thickness of the encapsulation layer deposited in the cutting path area OO and the encapsulation layer in the isolation area BB and the through-hole area CC on both sides, so that during the process of peeling the display panel from the glass back panel, the encapsulation layer in the cutting path area OO is not easy to crack, preventing the cracks from extending to the display area AA, causing the luminescent material in the display area AA to be invaded by water and oxygen, thereby avoiding the display color deficiency.

[0034] The technical solution provided by the embodiments of the present invention, by providing a separation structure in the scribe area, ensures that the thickness of the encapsulation layer deposited in the scribe area is uniform with that of the encapsulation layer deposited in the isolation areas and the through-hole areas on both sides. As a result, during the process of peeling the display panel from the glass backplane, the encapsulation layer in the scribe area is less likely to crack, preventing cracks from extending to the display area. This prevents the luminescent material in the display area from being infiltrated by water and oxygen, thereby avoiding the display color loss caused by water and oxygen intrusion and improving the display quality of the display panel.

[0035] Optionally, based on the above embodiment, see Figure 2 The partition structure 100 includes a partition column 200, and the display panel further includes: a glass backplane 110 and a base layer 120; a display function layer 130, located on the side of the base layer 120 away from the glass backplane 110; the display function layer 130 includes a luminescent material 300; an encapsulation layer 140, located on the side of the display function layer 130 away from the base layer, and the encapsulation layer 140 covers the partition column 200 and the display function layer 130; the encapsulation layer 140 includes at least one inorganic encapsulation layer 141.

[0036] Specifically, the glass back panel 110 is a supporting surface for preparing a flexible display panel, and a flexible material is coated on one side of the glass back panel 110 to obtain a base layer 120. After the flexible display panel is prepared, the base layer 120 can be peeled off from the glass back panel 110 by laser irradiation. The display function layer 130 is arranged on the side of the base layer 120 away from the glass back panel 110. The display function layer 130 is a film layer that emits light from the display panel. The display function layer 130 includes a luminescent material 300. The encapsulation layer 140 is a film layer with a certain degree of flexibility and transparency, which is used to protect the display function layer 130 from water and oxygen erosion and physical damage. The encapsulation layer 140 can be a thin film encapsulation layer. The encapsulation layer 140 can be a single-layer inorganic encapsulation layer 141, or it can be a composite film layer including at least two film layer structures. For example, Figure 2 It is shown that the encapsulation layer 140 includes an inorganic encapsulation layer 141. The inorganic encapsulation layer 141 can be prepared by deposition. The inorganic encapsulation layer 141 prepared by deposition completely covers the partition column 200 and the display function layer 130, thereby protecting the luminescent material 300 from water and oxygen corrosion. The separation structure 100 includes a partition column 200. A plurality of partition columns 200 are respectively provided in the cutting path area OO, the isolation area BB and the through-hole area CC. The partition column 200 can isolate the luminescent material 300 on the display function layer 130, so that the luminescent material 300 of the display area AA is blocked by the partition column 200 and is not connected to the outside world, thereby preventing water and oxygen from invading the luminescent material 300 of the display area AA from the side, causing color deficiency in the display.

[0037] Optionally, based on the above embodiment, see Figure 2In the scribe line region OO, the isolation region BB and the through hole region CC, a plurality of separation pillars 200 are arranged at equal intervals.

[0038] Specifically, the equally spaced arrangement of the spacer columns 200 can further maintain uniform thickness of the encapsulation layer 140 deposited on the cutting path area OO, the isolation area BB and the through-hole area CC, thereby avoiding water and oxygen intrusion caused by cracking due to uneven stress on the encapsulation layer 140 during the process of peeling the base layer 120 from the glass back panel 110.

[0039] Optionally, based on the above embodiment, continue to refer to Figure 2 The spacer 200 includes: a first supporting layer 210, located on the side of the display function layer 130 away from the base layer 120; a second supporting layer 220, located on the side of the first supporting layer 210 away from the base layer 120; a covering layer 230, located on the side of the second supporting layer 220 away from the first supporting layer 210; the covering layer 230 covers the second supporting layer 220 in the orthographic projection of the first supporting layer 210.

[0040] Specifically, the first supporting layer 210 and the second supporting layer 220 are used to separate the light-emitting material 300. The cover layer 230 covers the second supporting layer 220 in the orthographic projection of the first supporting layer 210, so that when the light-emitting material 300 is deposited, a portion of the light-emitting material 300 is distributed on the left and right sides of the separator 200, and another portion of the light-emitting material is distributed on the side of the cover layer 230 away from the base layer 120. As a result, the light-emitting material 300 is separated by the separator 200, preventing the light-emitting material 300 in the display area AA from communicating with the outside from the side, thereby causing water and oxygen intrusion.

[0041] Optionally, based on the above embodiment, continue to refer to Figure 2 The first supporting layer 210 and the luminescent material 300 are provided in the same layer.

[0042] Specifically, the first supporting layer 210 and the luminescent material 300 are arranged in the same layer, so that when the luminescent material 300 is deposited, the luminescent material 300 is distributed between the first supporting layers 210 of two adjacent separators 200 and is separated by the first supporting layer 210 .

[0043] Optionally, Figure 3 This is a schematic diagram of the structure of another display panel provided by the embodiment of the present utility model. Figure 3 The encapsulation layer 140 further includes an organic encapsulation layer 142 , which is located on a side of the at least one inorganic encapsulation layer 141 away from the base layer.

[0044] Specifically, the encapsulation layer 140 can be a structure consisting of an inorganic encapsulation layer 141 and an organic encapsulation layer 142. The organic encapsulation layer 142 can be a thin film formed from an organic polymer material and has good flexibility. The organic encapsulation layer 142 is disposed on the side of the inorganic encapsulation layer 141 away from the base layer 120 and can be used to release stress while ensuring the flatness of the entire encapsulation layer 140. The organic material of the organic encapsulation layer 142 can reduce the permeability of water vapor and the like, thereby improving the encapsulation performance. The inorganic encapsulation layer 141 can prevent water and oxygen from corroding the display function layer 130 and the luminescent material 300 and prevent the display function layer 130 from being physically damaged.

[0045] Optionally, Figure 4 This is a schematic diagram of the structure of another display panel provided by the embodiment of the present utility model. Figure 4 The inorganic encapsulation layer 141 includes a first inorganic encapsulation layer 1411 and a second inorganic encapsulation layer 143 , and the organic encapsulation layer 142 is located between the first inorganic encapsulation layer 1411 and the second inorganic encapsulation layer 143 .

[0046] Specifically, the encapsulation layer 140 may have a three-layer structure including a first inorganic encapsulation layer 1411, a second inorganic encapsulation layer 143, and an organic encapsulation layer 142. The organic encapsulation layer 142 is disposed between the first inorganic encapsulation layer 1411 and the second inorganic encapsulation layer 143. The second inorganic encapsulation layer 143 can protect the organic encapsulation layer 142 by isolating it from water and oxygen.

[0047] Optionally, the first supporting layer 210 and the covering layer 230 are made of titanium, and the second supporting layer 220 is made of aluminum.

[0048] Specifically, the second support layer 220 is the main support structure of the separator 200. The material of the second support layer 220 is aluminum, which can provide effective support. The material of the first support layer 210 and the cover layer 230 is titanium, which can effectively protect the structure of the second support layer 220.

[0049] Optionally, the base layer 120 is made of polyimide material.

[0050] Specifically, the polyimide material has good elasticity and flexibility, and is convenient to be used as the material for preparing the base layer 120 of the flexible display panel, while helping to reduce production costs.

[0051] The embodiment of the present invention further provides a display device. The display device provided by the embodiment of the present invention includes the display panel provided by any of the above embodiments and has the beneficial effects of the display panel provided by any of the above embodiments, which will not be described in detail here.

[0052] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this utility model can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this utility model can be achieved. This is not limited herein.

[0053] The above specific embodiments do not limit the scope of protection of this utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be included within the scope of protection of this utility model.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a non-display area; the display panel also includes: an isolation area, located in the non-display area; a through-hole area, located in the non-display area and on a side of the isolation area away from the display area; The cutting street area is located between the isolation area and the through hole area; the cutting street area, the isolation area and the through hole area are respectively provided with a plurality of separation structures; the separation structures are used to separate the light-emitting material.

2. The display panel according to claim 1, wherein: The partition structure includes a partition column, and the display panel further includes: a glass back plate and a base layer; A display function layer is located on a side of the substrate layer away from the glass back plate; the display function layer includes the luminescent material; The encapsulation layer is located on a side of the display function layer away from the base layer, and covers the partition column and the display function layer; the encapsulation layer includes at least one inorganic encapsulation layer.

3. The display panel according to claim 2, wherein: In the scribe line area, the isolation area and the through hole area, a plurality of the separation pillars are arranged at equal intervals.

4. The display panel according to claim 2, wherein: The separator column comprises: a first supporting layer, located on a side of the display functional layer away from the base layer; a second supporting layer, located on a side of the first supporting layer away from the base layer; The covering layer is located on a side of the second supporting layer away from the first supporting layer; the orthographic projection of the covering layer on the first supporting layer covers the second supporting layer.

5. The display panel according to claim 4, wherein: The first supporting layer and the light-emitting material are arranged in the same layer.

6. The display panel according to claim 2, wherein: The encapsulation layer further includes an organic encapsulation layer, and the organic encapsulation layer is located on a side of at least one of the inorganic encapsulation layers away from the base layer.

7. The display panel according to claim 6, wherein: The inorganic encapsulation layer includes a first inorganic encapsulation layer and a second inorganic encapsulation layer, and the organic encapsulation layer is located between the first inorganic encapsulation layer and the second inorganic encapsulation layer.

8. The display panel according to claim 4, wherein: The first supporting layer and the covering layer are made of titanium, and the second supporting layer is made of aluminum.

9. The display panel according to claim 2, wherein: The base layer is made of polyimide.

10. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 9.

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