Display panel and display device

Abstract

The present invention discloses a display panel and a display device, wherein the display panel includes a display area and a non-display area surrounding the display area; the display panel also includes an array substrate and an opposing substrate arranged relatively to each other, and a sealant and a liquid crystal layer located between the array substrate and the opposing substrate; the sealant is located in the non-display area; the liquid crystal layer is located in the display area; the array substrate includes an anti-reflection structure and a circuit structure; the anti-reflection structure is located in the non-display area, and in the thickness direction of the display panel, the anti-reflection structure overlaps with the sealant; wherein the transmittance of the first light wave used to cure the sealant in the anti-reflection structure in the non-display area is greater than the transmittance of the first light wave in the array substrate in the display area. By adopting the above technical scheme, the irradiation time of the first light wave can be shortened, and the uncured raw glue in the sealant can be prevented from reacting with the liquid crystal molecules in the liquid crystal layer to cause the problem of broken bright spots; the curing effect of the sealant can also be improved, the degradation of the liquid crystal layer can be reduced, and the quality and display effect of the display panel can be improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, no radiation, etc., and has been widely used. Usually, the LCD panel is composed of a color filter (CF) substrate, a thin film transistor (TFT) substrate, a liquid crystal (LC) sandwiched between the color filter substrate and the thin film transistor substrate, and a sealant. The CF substrate and the TFT substrate are bonded and sealed by the sealant, and the curing effect of the sealant is crucial to the quality of the display panel. Summary of the invention

[0003] The present invention provides a display panel and a display device, so as to improve the curing effect of the sealing frame glue, thereby improving the quality of the display panel.

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

[0005] The display panel further comprises an array substrate and an opposing substrate arranged opposite to each other, and a frame glue and a liquid crystal layer located between the array substrate and the opposing substrate; the frame glue is located in the non-display area; and the liquid crystal layer is located in the display area;

[0006] The array substrate includes an anti-reflection structure and a circuit structure; the anti-reflection structure is located in the non-display area, and in the thickness direction of the display panel, the anti-reflection structure overlaps with the frame glue; wherein the transmittance of a first light wave used to cure the frame glue in the anti-reflection structure in the non-display area is greater than the transmittance of the first light wave in the array substrate in the display area.

[0007] According to another aspect of the present invention, a display device is provided, comprising the above-mentioned display panel.

[0008] The technical solution of the embodiment of the present invention is to set an anti-reflection structure in the array substrate of the non-display area so that the transmittance of the first light wave in the anti-reflection structure of the non-display area is greater than the transmittance of the first light wave in the array substrate of the display area. The transmission rate of the first light wave in the anti-reflection structure is relatively large, and the first light wave that can be irradiated to the liquid crystal layer is increased, thereby shortening the irradiation time of the first light wave, thereby avoiding incomplete curing of the frame glue, and the reaction of the uncured raw glue in the frame glue with the liquid crystal molecules in the liquid crystal layer to cause the problem of broken bright spots; the increase of the first light wave irradiated to the frame glue can also improve the curing effect of the frame glue and improve the quality of the display panel; the shortening of the irradiation time of the first light wave can also reduce the degradation of the liquid crystal layer, thereby improving the display effect of the display panel.

[0009] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they 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

[0010] 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 creative work.

[0011] Figure 1 It is a structural schematic diagram of a display panel in the prior art;

[0012] Figure 2 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0013] Figure 3 A schematic structural diagram of an anti-reflection structure provided by an embodiment of the present invention;

[0014] Figure 4 A schematic structural diagram of another anti-reflection structure provided by an embodiment of the present invention;

[0015] Figure 5 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0016] Figure 6 A schematic diagram of a partial structure of an array substrate provided by an embodiment of the present invention;

[0017] Figure 7 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0018] Figure 8 A schematic diagram of a partial structure of another array substrate provided by an embodiment of the present invention;

[0019] Fig. 9 A schematic diagram of a partial structure of another array substrate provided by an embodiment of the present invention;

[0020] Fig.10 A schematic diagram of a partial structure of another array substrate provided by an embodiment of the present invention;

[0021] Fig.11 A schematic diagram of a partial structure of another array substrate provided by an embodiment of the present invention;

[0022] Fig.12 A schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention;

[0023] Fig.13 A schematic diagram of a partial structure of another array substrate provided by an embodiment of the present invention;

[0024] Fig.14 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0026] 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 data 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 that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] Figure 1 is a schematic diagram of the structure of a display panel in the prior art, referring to Figure 1The display panel 01 includes a TFT substrate 02 and a CF substrate 03 that are arranged relatively, and a sealant 04 and a liquid crystal layer 05 located between the TFT substrate 02 and the CF substrate 03. The sealant 04 is usually cured by UV light irradiation combined with heating. However, when the temperature is too high or the transmittance of UV light is low, the sealant 04 cannot be cured in a short time and requires UV light irradiation for a long time. During the curing process of the sealant 04, the liquid crystal layer 05 is in contact with the uncured raw glue of the sealant 04 for too long. The liquid crystal layer 05 will react with the molecular groups in the raw glue and precipitate, affecting the alignment of the liquid crystal layer 05, resulting in incomplete light shielding in the area of ​​the liquid crystal layer 05 close to the sealant 04, forming broken bright spots 06, and affecting the quality of the display panel 01. In addition, long-term UV light irradiation will also cause the degradation of the liquid crystal layer 05, affecting the display effect of the display panel 01.

[0028] To solve the above technical problems, an embodiment of the present invention provides a display panel, comprising: a display area and a non-display area surrounding the display area; the liquid crystal display panel also comprises an array substrate and an opposing substrate arranged opposite to each other, and a frame glue and a liquid crystal layer located between the array substrate and the opposing substrate; the frame glue is located in the non-display area; the liquid crystal layer is located in the display area; the array substrate comprises an anti-reflection structure and a circuit structure; the anti-reflection structure is located in the non-display area, and in the thickness direction of the liquid crystal display panel, the anti-reflection structure overlaps with the frame glue; wherein the transmittance of a first light wave used for curing the frame glue in the anti-reflection structure in the non-display area is greater than the transmittance of the first light wave in the array substrate in the display area.

[0029] By adopting the above technical scheme, an anti-reflection structure is set in the array substrate in the non-display area, so that the transmittance of the first light wave in the anti-reflection structure in the non-display area is greater than the transmittance of the first light wave in the array substrate in the display area. The transmittance of the first light wave in the anti-reflection structure is relatively large, and the first light wave that can be irradiated to the frame glue is increased, thereby shortening the irradiation time of the first light wave, thereby avoiding incomplete curing of the frame glue, and the problem of uncured raw glue in the frame glue reacting with liquid crystal molecules in the liquid crystal layer to cause broken bright spots; increasing the first light wave irradiating to the frame glue can also improve the curing effect of the frame glue and improve the quality of the display panel; shortening the irradiation time of the first light wave can also reduce the degradation of the liquid crystal layer and improve the display effect of the display panel.

[0030] The above is the core idea of ​​the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0031] Figure 2 A schematic diagram of a display panel according to an embodiment of the present invention is provided. Figure 2The display panel 100 includes a display area 101 and a non-display area 102 surrounding the display area; the display panel 100 also includes an array substrate 110 and an opposing substrate 120 disposed opposite to each other, and a sealant 130 and a liquid crystal layer 140 located between the array substrate 110 and the opposing substrate 120; the sealant 130 is located in the non-display area 102; the liquid crystal layer 140 is located in the display area 101; the array substrate 110 includes an anti-reflection structure 111 and a circuit structure 112; the anti-reflection structure 111 is located in the non-display area 102, and in the thickness direction of the display panel 100, the anti-reflection structure 111 overlaps with the sealant 130. The transmittance of the first light wave 150 used for curing the sealant 130 in the anti-reflection structure 111 in the non-display area 102 is greater than the transmittance of the first light wave 150 in the array substrate 110 in the display area 101.

[0032] For example, continue to refer to Figure 2 , the counter substrate 120 includes a black matrix 122 and a color resist layer 125. The function of the black matrix 122 is to block the random scattered light from the liquid crystal layer 140, prevent light leakage from the non-display area 102 and color mixing between adjacent sub-pigments, and prevent ambient light from irradiating the channel of the thin film transistor in the circuit structure 112; the color resist layer 125 includes red color resist, green color resist and blue color resist, which can respectively transmit red light waves, green light waves and blue light waves to form a color display. In an optional embodiment, the counter substrate 120 also includes an optical adhesive layer 121 and an alignment film 124. The optical adhesive layer 121 can reduce the reflected light of the external ambient light and improve the display contrast of the display panel 100; the alignment film 124 is used to guide the arrangement direction of the liquid crystal molecules in the liquid crystal layer 140. It can be understood that the array substrate 110 can also include an alignment film, which is not specifically limited by the embodiment of the present invention. The counter substrate 120 further includes a first substrate 123 . The black matrix 122 , the color resist layer 125 , the optical adhesive layer 121 and the alignment film 124 are all prepared on one side of the first substrate 123 .

[0033] Continue to refer Figure 2The array substrate 110 includes a second substrate 115, an anti-reflection structure 111, a circuit structure 112 and a pixel electrode 114. The anti-reflection structure 111 and the circuit structure 112 are located on a side of the second substrate 115 close to the liquid crystal layer 140. The pixel electrode 114 is located on a side of the circuit structure 112 close to the liquid crystal layer 140. The circuit structure 112 may include a pixel circuit located in a display area. The pixel electrode 114 may be electrically connected to the pixel circuit. The pixel circuit may provide an electrical signal to the pixel electrode 114, so that an electric field is formed between the pixel electrode 114 and a common electrode (not shown in the figure), thereby controlling the twisting direction of the liquid crystal molecules in the liquid crystal layer 140 located in the electric field. The liquid crystal layer 140 may include VA (Vertical Alignment) type liquid crystal, in which case the common electrode and the pixel electrode 114 are located on opposite sides of the liquid crystal layer 140; the liquid crystal layer 140 may also include IPS (In-Plane Switching) type liquid crystal, in which case the common electrode and the pixel electrode 114 are located on the same side of the liquid crystal layer 140, and both are located on the side of the liquid crystal layer close to the second substrate 115. It can be understood that the figure only exemplarily shows the partial structure of the circuit structure 112 located in the display area 101, and the circuit structure 112 also includes a circuit located in the non-display area 102. The circuit located in the non-display area 102 in the circuit structure 112 includes active or passive devices such as transistors, and the embodiment of the present invention does not specifically limit this.

[0034] The array substrate 110 further includes a planarization layer 116 to increase the planarization of the array substrate 110. However, the planarization layer 116 generally includes an organic layer, which has a certain water absorption property. Water and oxygen can easily penetrate into the display area 101 through the organic layer of the planarization layer 116 to corrode the circuit structure 112. In an optional embodiment, the array substrate 110 further includes a protective layer 117. The protective layer 117 is located on a side of the planarization layer 116 away from the second substrate 115, and can isolate water and oxygen. In addition, the planarization layer 116 is provided with a blank area on the side of the frame glue 130 away from the display area 101 (the planarization layer 116 is not provided in this area), and in the thickness direction of the display panel 100, the blank area overlaps with the frame glue 130, which can prevent water and oxygen from penetrating from the side of the planarization layer 116; the planarization layer 116 is also provided with a groove area, which is located in the non-display area 102 and on the side of the blank area close to the display area 101, so as to further isolate water and oxygen and protect the circuit structure 112 of the display area 101 from being corroded by water and oxygen.

[0035] In addition to the above structure, the array substrate 110 also includes a plurality of conductive layers, and the conductive layers include signal lines that provide scanning signals for the circuit structure 112 and data lines that provide data signals for the circuit structure 112 and other connecting lines (not shown in the figure). The array substrate 110 also includes a plurality of dielectric layers, and dielectric layers are provided between adjacent conductive layers to isolate adjacent conductive layers from being connected to each other. Therefore, the array substrate 110 includes a plurality of film layer structures, and the plurality of film layer structures of the array substrate 110 can use different film layer materials and set different film layer thicknesses, so that different film layer structures have different refractive indices for the same light wave. By setting the stacking method between the film layer structures and the thickness of each film layer structure, the transmittance of a certain light wave at that position can be changed.

[0036] In this way, by setting the film thickness of the film layer structure in at least a part of the area of ​​the array substrate 110, the optical path difference of the first light wave 150 in the area can be changed to meet the thin film interference condition. For example, by setting the thickness of one or more film layer structures in the anti-reflection structure 111, the transmitted light and the reflected light of the first light wave 150 in the film layer structure of the anti-reflection structure 111 can be made to undergo thin film interference, so that the transmittance of the first light wave 150 in the anti-reflection structure 111 in the non-display area 101 is greater than the transmittance of the first light wave 150 in the array substrate 110 in the display area 101.

[0037] The first light wave 150 includes UV (ultraviolet) light. Taking UV light of 365 nanometers as an example, the transmittance of the first light wave 150 in the array substrate 110 of the display area 101 is only 69%, while the transmittance of the first light wave 150 in the anti-reflection structure 111 of the non-display area 102 can reach 81%, which is an increase of 18%. The transmittance of the first light wave in the anti-reflection structure 111 can be further improved by setting the film material and film thickness in the anti-reflection structure 111.

[0038] It should be noted that the anti-reflection structure 111 can be composed of any film layer structure in the array substrate 110 of the non-display area 102, and can be composed of only one film layer structure or a multi-layer film layer structure, which is not limited in the embodiment of the present invention; when the anti-reflection structure 111 is composed of a multi-layer film layer structure, the film thickness of the film layer structure in the anti-reflection structure 111 can be different from the thickness of the film layer structure outside the anti-reflection structure 111, and the film thickness of the film layer structure in the anti-reflection structure 111 can also be only partially different from the thickness of the film layer structure outside the anti-reflection structure 111, which is not specifically limited in the embodiment of the present invention. It can be understood that the film layer structure in the anti-reflection structure 111 can be arranged in the same layer as part of the film layer structure of the array substrate in the display area 101, and the film layer structure in the anti-reflection structure 111 can also be arranged only in the non-display area 102, and the film layer structure may not be arranged in the array substrate in the display area 101.

[0039] In addition, when setting the film thickness of the film layer structure, only the film layer structure in the anti-reflection structure 111 of the non-display area 102 can be set, and the film layer structure other than the anti-reflection structure 111 need not be set, especially the film layer structure of the display area 101 need not be set, and the state before the anti-reflection structure 111 is maintained can be maintained, so that the transmittance of the first light wave 150 in the anti-reflection structure 111 is increased without affecting the display effect of the display area 101.

[0040] The display panel provided by the embodiment of the present invention sets an anti-reflection structure in the array substrate of the non-display area so that the transmittance of the first light wave in the anti-reflection structure of the non-display area is greater than the transmittance of the first light wave in the array substrate of the display area. The transmission rate of the first light wave in the anti-reflection structure is relatively large, and the first light wave that can be irradiated to the frame glue is increased, thereby shortening the irradiation time of the first light wave, thereby avoiding incomplete curing of the frame glue, and the problem of the uncured raw glue in the frame glue reacting with the liquid crystal molecules in the liquid crystal layer to cause the bright spots. The increase of the first light wave irradiating to the frame glue can also improve the curing effect of the frame glue and improve the quality of the display panel. The shortened irradiation time of the first light wave can also reduce the degradation of the liquid crystal layer and improve the display effect of the display panel.

[0041] Optional, Figure 3 A schematic diagram of a structure of an anti-reflection structure provided in an embodiment of the present invention, referring to Figure 2 and Figure 3 The anti-reflection structure 111 includes a first anti-reflection structure 31, a second anti-reflection structure 32, and a third anti-reflection structure 33 located between the first anti-reflection structure 31 and the second anti-reflection structure 32; the refractive index of the first anti-reflection structure 31 is n1, the refractive index of the second anti-reflection structure 32 is n2, and the refractive index of the third anti-reflection structure 33 is n3, wherein n3>n1, and n3>n2.

[0042] Specifically, the first light wave 150 is transmitted and reflected on the surface of the third anti-reflection structure 33 close to the first anti-reflection structure 31 and the surface of the third anti-reflection structure 33 close to the second anti-reflection structure 32, respectively, and the light of different amplitudes in the first light wave 150 is split to form coherent light, and the principle of thin film interference is used to increase the transmittance of the first light wave 150 in the anti-reflection structure 111. The embodiment of the present invention does not limit the size relationship between n1 and n2.

[0043] Optionally, the first antireflection structure 31 and the second antireflection structure 32 include silicon oxide or organic materials; and the third antireflection structure 33 includes silicon nitride. The refractive index of silicon nitride is greater than the refractive index of silicon oxide and also greater than the refractive index of organic materials. The first antireflection structure 31 and the second antireflection structure 32 may also include other materials with a smaller refractive index, and the third antireflection structure 33 may also include other materials with a larger refractive index, which is not specifically limited in the embodiment of the present invention.

[0044] When the refractive index n3 of the third antireflection structure 33 is the largest among the first antireflection structure 31, the second antireflection structure 32 and the third antireflection structure 33, the thickness d1 of the third antireflection structure can satisfy n3*d1=K1*λ, where λ is the wavelength of the first light wave and K1 is a positive integer. In this way, the reflected light of the first light wave 150 on the surface of the third antireflection structure 33 can undergo destructive interference, and the transmitted light on the surface of the third antireflection structure 33 can undergo constructive interference, thereby increasing the transmittance of the first light wave 150 in the antireflection structure 111.

[0045] It should be noted that when n3<n1 and n3<n2, the principle of thin film interference can also be used to achieve the purpose of increasing the transmittance of the first light wave 150 in the anti-reflection structure 111, which will not be described in detail.

[0046] In an alternative embodiment, Figure 4 A schematic diagram of another anti-reflection structure provided in an embodiment of the present invention, referring to Figure 4 The anti-reflection structure 111 also includes a fourth anti-reflection structure 34 and a fifth anti-reflection structure 35. The fourth anti-reflection structure 34 is located on a side of the first anti-reflection structure 31 away from the third anti-reflection structure 33, or the fourth anti-reflection structure 34 is located on a side of the second anti-reflection structure 32 away from the third anti-reflection structure 33; the fifth anti-reflection structure 35 is located on a side of the fourth anti-reflection structure 34 away from the third anti-reflection structure; the refractive index of the fourth anti-reflection structure 34 is n4, and the refractive index of the fifth anti-reflection structure 35 is n5, wherein n4>n1, or n4>n2, and n4>n5.

[0047] Exemplarily, when the refractive index of the adjacent film layer structure in the array substrate 110 of the non-display area 102 meets the above conditions, the thickness of the third anti-reflection structure 33 and the thickness of the fourth anti-reflection structure 34 can be set so that the first light wave 150 can have multiple thin film interferences in the anti-reflection structure 111, further increasing the transmittance of the first light wave 150 in the array substrate 110 of the non-display area 102, and further improving the curing effect of the frame glue 130. It is understandable that the anti-reflection structure 111 can also include a sixth anti-reflection structure and a seventh anti-reflection structure, which will not be described one by one.

[0048] Optional, Figure 5 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention, referring to Figure 5 The array substrate 110 also includes a reflection-enhancing structure 113 ; the reflection-enhancing structure 113 is located between the anti-transmission structure 111 and the circuit structure 112 ; the reflectivity of the first light wave 150 in the reflection-enhancing structure 113 is greater than the reflectivity of the first light wave 150 in the anti-transmission structure 111 .

[0049] Exemplarily, by setting the thickness of one or more film layers in the reflection enhancing structure 113, thin film interference can be caused between the transmitted light and the reflected light of the first light wave 150 in the reflection enhancing structure 113, so that the reflectivity of the first light wave 150 in the reflection enhancing structure 113 is greater than the reflectivity of the first light wave 150 in the transmittance enhancing structure 111, thereby reducing the transmittance of the first light wave 150 in the reflection enhancing structure 113, and reducing the first light wave 150 irradiated to the liquid crystal layer 140, thereby avoiding degradation of the liquid crystal molecules in the liquid crystal layer 140 due to the irradiation of the first light wave, thereby affecting the quality of the liquid crystal molecules.

[0050] For example, taking the case where the first light wave 150 includes 365 nanometer UV light, the transmittance of the first light wave 150 in the array substrate 110 without the anti-reflection structure 111 and the anti-reflection structure 113 is 69%, while the transmittance of the first light wave 150 in the anti-reflection structure 113 is 65%, and the transmittance of the first light wave 150 is reduced in the anti-reflection structure 113 of the array substrate 110. By setting the film material and film structure in the anti-reflection structure 113, the reflectivity of the first light wave in the anti-reflection structure 111 can be further improved, and the first light wave 150 irradiated to the liquid crystal layer 140 can be reduced, thereby reducing the degradation of the liquid crystal molecules in the liquid crystal layer 140 caused by the irradiation of the first light wave 150.

[0051] It should be noted that the reflection enhancing structure 113 is similar to the transmittance enhancing structure 111 and can be composed of any film layer structure in the array substrate 110. The reflection enhancing structure 113 and the transmittance enhancing structure 111 can be composed of the same film layer structure or different film layer structures, and the embodiments of the present invention do not limit this.

[0052] In an optional embodiment, the reflective enhancement structure 113 and the anti-transmittance structure 111 are both located in the non-display area 102; the reflective enhancement structure 113 is located on the side of the anti-transmittance structure 111 close to the display area 101. In this way, on the one hand, the space of the array substrate 110 in the display area 101 can be increased, and the pixel resolution of the display panel 100 can be increased; on the other hand, the reflective enhancement structure 113 can be prevented from blocking the light waves of the backlight source from irradiating to the opposite substrate 120, thereby affecting the display brightness of the display area 101.

[0053] Optionally, in the thickness direction of the display panel 100 , the anti-reflection structure 111 covers the frame glue 130 , and the anti-reflection structure 113 does not overlap with the anti-reflection structure 111 , so as to avoid the anti-reflection structure 113 blocking the first light wave from irradiating to the frame glue 130 and affecting the curing effect of the frame glue 130 .

[0054] Optional, Figure 6 A partial structural diagram of an array substrate provided in an embodiment of the present invention, referring to Figure 5 and Figure 6The reflection enhancing structure 113 includes a first reflection enhancing structure 41, a second reflection enhancing structure 42, and a third reflection enhancing structure 43 located between the first reflection enhancing structure 41 and the second reflection enhancing structure 42; the first reflection enhancing structure 41 is arranged on the same layer as the first anti-transmission structure 31; the second reflection enhancing structure 42 is arranged on the same layer as the second anti-transmission structure 32; the third reflection enhancing structure 43 is arranged on the same layer as the third anti-transmission structure 33; the thickness of the third reflection enhancing structure 43 is d2, and the wavelength of the first light wave is λ, wherein, K2 is a positive integer.

[0055] Specifically, the first light wave 150 is transmitted and reflected at the surface of the third reflection enhancing structure 43 close to the first reflection enhancing structure 41 and at the surface of the third reflection enhancing structure 43 close to the second reflection enhancing structure 42, respectively, so that the light of different amplitudes in the first light wave 150 is separated to form coherent light, and the principle of thin film interference is utilized to increase the reflectivity of the first light wave 150 in the reflection enhancing structure 111.

[0056] The difference between the reflective enhancement structure 113 and the anti-reflective structure 111 lies in the thickness of the intermediate film layer with a higher refractive index. By setting the thickness relationship between the third reflective enhancement structure 43 and the third anti-reflective structure 33, the anti-reflective structure 111 and the reflective enhancement structure 113 can have different effects on the transmitted light and reflected light of the first light wave 150, so as to achieve different effects. The reflective enhancement structure 113 and the anti-reflective structure 111 are arranged in the same layer to avoid the first light wave 150 from leaking out of the film layer structure between the reflective enhancement structure 113 and the anti-reflective structure 111 in the thickness direction of the display panel 100 to irradiate the liquid crystal layer 140, causing adverse effects on the liquid crystal layer 140; in addition, the reflective enhancement structure 113 and the anti-reflective structure 111 are arranged in the same layer to simplify the stacking method of the film layer structure of the array substrate 110, which is conducive to the thinness of the display panel 100.

[0057] Optional, Figure 7 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention, Figure 8 A partial structural diagram of another array substrate provided in an embodiment of the present invention, referring to Figure 7 and Figure 8 The circuit structure 112 includes a first insulating structure 201, a second insulating structure 202 and a third insulating structure 203; the array substrate also includes a first dielectric layer 211, a second dielectric layer 212 and a third dielectric layer 213 located between the first dielectric layer 211 and the second dielectric layer 212; the first dielectric layer 211 includes a first anti-reflection structure 31 and a first insulating structure 201; the second dielectric layer 212 includes a second anti-reflection structure 32 and a second insulating structure 202; the third dielectric layer 213 includes a third anti-reflection structure 33 and a third insulating structure 203.

[0058] Exemplarily, the anti-reflection structure 111 is located on the side of the planarization layer 116 close to the second substrate 115, and can be composed of a variety of film layer structures in the dielectric layer. The dielectric layer includes film layers such as silicon oxide and silicon nitride. For example, the first anti-reflection junction 31 can be a first silicon oxide layer, the second anti-reflection structure 32 can be a second silicon oxide layer, and the third anti-reflection structure 33 can be a first silicon nitride layer. The first silicon oxide layer, the second silicon oxide layer and the first silicon nitride layer can also be insulating layers in the circuit structure 112 to insulate the conductive layer in the circuit structure 112. The anti-reflection structure 111 is arranged in the dielectric layer of the array substrate 110, and there is no need to add an additional film layer in the array substrate 110 due to the arrangement of the anti-reflection structure 111. It is only necessary to set the thickness of at least a part of the silicon nitride layer in the array substrate 110 in the non-display area 102 to increase the transmittance of the first light wave 150 in the anti-reflection structure 111, which is conducive to the thinness of the display panel. The arrangement of the anti-reflection structure 111 is relatively simple and the cost is low.

[0059] Optionally, the thickness of the third insulating structure 203 is different from the thickness of the third anti-reflection structure 33. On the one hand, the influence of the thin film interference phenomenon on the third insulating structure 203 can be reduced, so that the transmittance of the first light wave 150 in the circuit structure is relatively small; on the other hand, the thickness of the third insulating structure 203 may not change with the thickness of the third anti-reflection structure 33, and the first insulating structure 201, the second insulating structure 202 and the third insulating structure 203 in the circuit structure 112 can be maintained in the state when the anti-reflection structure 111 is not set in the array substrate 110, without affecting the display effect of the display panel.

[0060] In an optional embodiment, the first dielectric layer 211 further includes a first reflection enhancing structure 41 , the second dielectric layer 212 further includes a second reflection enhancing structure 42 , and the third dielectric layer 213 further includes a third reflection enhancing structure 43 .

[0061] Optional, Fig. 9 A partial structural diagram of another array substrate provided in an embodiment of the present invention, referring to Fig. 9 The array substrate 110 also includes a planarization layer 116 and a first protective layer 71; the planarization layer 116 is located on the side of the circuit structure 112 close to the liquid crystal layer 140; the first protective layer 71 is located on the side of the planarization layer 116 close to the liquid crystal layer 140; the second anti-reflection structure 32 is located on the side of the first protective layer 71 close to the liquid crystal layer 140; the planarization layer 116 includes the first anti-reflection structure 31 and the planarization structure 61 located in the display area 101; the first protective layer 71 includes a first protective structure 711 located in the non-display area 102 and a second protective structure 712 located in the display area 101; the first protective structure 711 includes at least a portion of the third anti-reflection structure 33.

[0062] Exemplarily, the first protective layer 71 may be an inorganic layer, which is used to isolate water and oxygen, protect the planarization layer 116 from being penetrated by water and oxygen, and thus protect the circuit structure 112 from being corroded by water and oxygen. The second anti-reflection structure 32 is arranged on the side of the first protective layer 71 away from the planarization layer 116. To ensure the lightness and thinness of the display panel 100, the thickness of the second anti-reflection structure 32 may be set within 1 μm. The third anti-reflection structure 33 may be composed of only the first protective structure 711, or the third anti-reflection structure 33 may be composed of the first protective structure 711 and other film layer structures other than the first protective structure 711.

[0063] In an optional embodiment, the planarization layer 116 further includes a first reflection-enhancing structure, which is located between the first anti-transmission structure and the planarization structure 61; the first protection layer 71 may further include a third reflection-enhancing structure, which is located between the first protection structure 711 and the second protection structure 712; and a second reflection-enhancing structure (not shown in the figure) is provided on the side of the third reflection-enhancing structure away from the first protection structure 711. In this way, the first light wave 150 irradiated to the liquid crystal layer 140 can be reduced, and the degradation of the liquid crystal molecules in the liquid crystal layer 140 due to the irradiation of the first light wave can be avoided, thereby affecting the quality of the liquid crystal molecules.

[0064] Optionally, the array substrate further includes a second protective layer; the second protective layer is located on the side of the first protective layer away from the planarization layer. The second protective layer may be located only in the display area or only in the non-display area, and may be located on the side of the second anti-reflection structure close to the first protective structure or on the side of the second anti-reflection structure away from the first protective structure. The embodiment of the present invention does not limit the position of the second protective layer. The second protective layer can further prevent water vapor from penetrating into the planarization layer, thereby preventing the circuit structure from being corroded by water and oxygen.

[0065] In an optional embodiment, the first protective layer and the second protective layer are made of the same material, for example, the first protective layer and the second protective layer are both made of silicon nitride.

[0066] Optional, Fig.10 A partial structural diagram of another array substrate provided in an embodiment of the present invention, referring to Fig.10 The second protective layer 72 includes a third protective structure 723 located in the non-display area 102 and a fourth protective structure 724 located in the display area 101; the third protective structure 723 is located between the first protective structure 711 and the second anti-reflection structure 32; the third protective structure 723 includes a portion of the third anti-reflection structure 33. Exemplarily, the third anti-reflection structure 33 is composed of the first protective structure 711 and the third protective structure 723.

[0067] Optional, reference Fig. 9 and Fig.10The array substrate further includes a supporting layer 81 located on a side of the second protective layer away from the first protective layer; the supporting layer 81 includes at least one supporting structure 811 and a second anti-reflection structure 32 ; wherein the supporting structure 811 is located in the display area 101 .

[0068] Among them, the support structure 811 can play a role in supporting the thickness of the liquid crystal box where the liquid crystal layer 140 is located, and can also increase the compressive resistance of the display panel. The support structure 811 can be an organic protrusion and can be set in the same layer as the second anti-reflection structure 32, and can be prepared in the same process using the same process, without adding additional steps, thereby reducing production costs and improving production efficiency.

[0069] Optional, Fig.11 A partial structural diagram of another array substrate provided in an embodiment of the present invention, referring to Fig.11 The second protective layer 72 includes a third protective structure 723 located in the non-display area 102 and a fourth protective structure 724 located in the display area 101; wherein at least a portion of the third protective structure 723 is located on a side of the second anti-reflection structure 32 away from the first protective structure 711. Exemplarily, when the second anti-reflection structure 32 includes an organic material, by arranging that at least a portion of the third protective structure 723 is located on a side of the second anti-reflection structure 32 away from the first protective structure 711, the second anti-reflection structure 32 can be protected from water and oxygen penetration.

[0070] Optional, Fig.12 A schematic diagram of a top view of a display panel provided by an embodiment of the present invention is shown. Fig.13 A partial structural diagram of another array substrate provided in an embodiment of the present invention, referring to Fig.12 and Fig.13 The non-display area 102 includes a first non-display area 103; the third protective structure 723 located in the first non-display area 103 includes a first portion 7231 and a second portion 7232 connected to each other; the first portion 7231 is located on a side of the second anti-reflection structure 32 away from the first protective structure 711; the second portion 7232 is located on a side of the second anti-reflection structure 32 away from the display area 101.

[0071] Exemplarily, the first non-display area 103 includes the upper frame, the left frame and the right frame of the display panel 100. On the one hand, the transmittance of the first light wave 150 in the upper frame, the left frame and the right frame of the display panel 100 is generally high, and the area of ​​the anti-reflection structure 111 can be appropriately reduced, that is, the area of ​​the second anti-reflection structure 32 and the first part 7231 can be appropriately reduced; on the other hand, the width of the upper frame, the left frame and the right frame of the display panel 100 is generally narrow, and the second anti-reflection structure 32 is located in the non-display area 102 away from the outside of the display area 101, which is easy to cause water and oxygen to penetrate, and the circuit structure 113 is overlooked through the organic matter in the second anti-reflection structure 32. Therefore, the second part 7232 of the third protective structure 723 can be set on the side of the second anti-reflection structure 32 away from the display area 101 to achieve the effect of isolating water and oxygen.

[0072] Optional, reference Fig.11 and Fig.12 , the non-display area 102 also includes a second non-display area 104; in the direction from the display area 101 to the non-display area 102, the width of the first non-display area 103 is smaller than the width of the second non-display area 104; the third protective structures 723 located in the second non-display area 104 are all located on the side of the second anti-reflection structure 32 away from the first protective structure 711.

[0073] Exemplarily, the second non-display area 104 includes the lower frame of the display panel 100. The lower frame of the display panel is generally wider than other frames. Water and oxygen are not easy to penetrate into the second anti-reflection structure 32 of the second non-display area 104. There is no need to set the second part 7232 on the side of the second anti-reflection structure 32 away from the display area 101, which can simplify the process and reduce production costs.

[0074] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.14 A schematic diagram of a display device according to an embodiment of the present invention is shown in FIG. Fig.14 The display device 300 includes the display panel 100 provided by any embodiment of the present invention. The display device 300 provided by the embodiment of the present invention can be Fig.14 The mobile phone shown in the figure may also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc., and the embodiments of the present invention do not specifically limit this.

[0075] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: include: a display area and a non-display area surrounding the display area; The display panel further comprises an array substrate and an opposing substrate arranged opposite to each other, and a frame glue and a liquid crystal layer located between the array substrate and the opposing substrate; the frame glue is located in the non-display area; and the liquid crystal layer is located in the display area; The array substrate comprises an anti-reflection structure and a circuit structure; the anti-reflection structure is located in the non-display area, and in the thickness direction of the display panel, the anti-reflection structure overlaps with the sealant; wherein the transmittance of a first light wave used for curing the sealant in the anti-reflection structure in the non-display area is greater than the transmittance of the first light wave in the array substrate in the display area; The anti-reflection structure includes a first anti-reflection structure, a second anti-reflection structure, and a third anti-reflection structure located between the first anti-reflection structure and the second anti-reflection structure; The refractive index of the first anti-reflection structure is n1, the refractive index of the second anti-reflection structure is n2, and the refractive index of the third anti-reflection structure is n3, wherein n3>n1, and n3>n2.

2. The display panel according to claim 1, characterized in that: The thickness of the third anti-reflection structure is d1, and the wavelength of the first light wave is λ, wherein n3*d1=K1*λ, and K1 is a positive integer.

3. The display panel according to claim 1, characterized in that: The first anti-reflection structure and the second anti-reflection structure both include silicon oxide or organic material; and the third anti-reflection structure includes silicon nitride.

4. The display panel according to claim 1, characterized in that: The array substrate further includes a reflection enhancement structure; The reflection-enhancing structure is located between the anti-transmission structure and the circuit structure; and the reflectivity of the first light wave in the reflection-enhancing structure is greater than the reflectivity of the first light wave in the anti-transmission structure.

5. The display panel according to claim 4, characterized in that: In the thickness direction of the display panel, the reflection enhancement structure and the transmittance enhancement structure do not overlap.

6. The display panel according to claim 4, characterized in that: The reflection enhancing structure comprises a first reflection enhancing structure, a second reflection enhancing structure and a third reflection enhancing structure located between the first reflection enhancing structure and the second reflection enhancing structure; The first anti-reflection structure and the first anti-reflection structure are arranged in the same layer; The second reflection-enhancing structure is disposed in the same layer as the second anti-transmission structure; the third reflection-enhancing structure is disposed in the same layer as the third anti-transmission structure; the thickness of the third reflection-enhancing structure is d2, and the wavelength of the first light wave is λ, wherein, K2 is a positive integer.

7. The display panel according to claim 1, characterized in that: The array substrate further comprises a first dielectric layer, a second dielectric layer and a third dielectric layer located between the first dielectric layer and the second dielectric layer; The first dielectric layer includes the first anti-reflection structure and the first insulating structure; the second dielectric layer includes the second anti-reflection structure and the second insulating structure; the third dielectric layer includes the third anti-reflection structure and the third insulating structure; The circuit structure includes the first insulating structure, the second insulating structure and the third insulating structure.

8. The display panel according to claim 7, characterized in that: The thickness of the third insulating structure is different from the thickness of the third antireflection structure.

9. The display panel according to claim 1, characterized in that: The array substrate further includes a planarization layer and a first protective layer; The planarization layer is located on a side of the circuit structure close to the liquid crystal layer; the first protection layer is located on a side of the planarization layer close to the liquid crystal layer; and the second anti-reflection structure is located on a side of the first protection layer close to the liquid crystal layer; The planarization layer includes the first anti-reflection structure and a planarization structure located in the display area; the first protective layer includes a first protective structure located in the non-display area and a second protective structure located in the display area; the first protective structure includes at least part of the third anti-reflection structure.

10. The display panel according to claim 9, characterized in that: The array substrate further includes a second protective layer; The second protection layer is located on a side of the first protection layer away from the planarization layer.

11. The display panel according to claim 10, characterized in that: The second protective layer includes a third protective structure located in the non-display area and a fourth protective structure located in the display area; at least a portion of the third protective structure is located on a side of the second anti-reflection structure away from the first protective structure.

12. The display panel according to claim 11, characterized in that: The non-display area includes a first non-display area; the third protective structure located in the first non-display area includes a first part and a second part connected to each other; the first part is located on a side of the second anti-reflection structure away from the first protective structure; and the second part is located on a side of the second anti-reflection structure away from the display area.

13. The display panel according to claim 12, characterized in that: The non-display area further includes a second non-display area; along a direction from the display area to the non-display area, a width of the first non-display area is smaller than a width of the second non-display area; The third protection structures located in the second non-display area are all located on a side of the second anti-reflection structure away from the first protection structure.

14. The display panel according to claim 10, characterized in that: The second protective layer includes a third protective structure located in the non-display area and a fourth protective structure located in the display area; the third protective structure is located between the first protective structure and the second anti-reflection structure; and the third protective structure includes a portion of the third anti-reflection structure.

15. The display panel according to claim 10, characterized in that: The array substrate further comprises a supporting layer located on a side of the second protective layer away from the first protective layer; The supporting layer includes at least one supporting structure and the second anti-reflection structure; the supporting structure is located in the display area.

16. The display panel according to claim 10, characterized in that: The first protection layer and the second protection layer are made of the same material.

17. A display device, characterized in that: A display panel comprising any one of claims 1-16.

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