Display panel and display device

By setting up a waterproof membrane component on the periphery of the frame glue of the display panel, including a hydrophobic membrane layer, a water-absorbing membrane layer and an oily molecular layer, the liquid crystal pollution and metal corrosion problems caused by water vapor entry are solved, and a higher display quality is achieved.

CN116679490BActive Publication Date: 2025-07-11HKC CORP LTD
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Patent Information

Application Number
CN202310641836.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-31
Publication Date
2025-07-11
Estimated Expiration
2043-05-31

AI Technical Summary

Technical Problem

The waterproof performance of traditional display panels is poor, causing water vapor to enter the box to contaminate the liquid crystal and corrode the metal traces, affecting the display quality.

Method used

A waterproof membrane assembly is provided on the periphery of the frame glue of the display panel, including a first hydrophobic film layer, a water-absorbing film layer and an oily molecular layer. The hydrophobic film layer is used to block the external water vapor. The water-absorbing film layer and the oily molecular layer work together to discharge the water vapor in the box, and combine the drain port and the guide structure to achieve unidirectional flow and discharge of water vapor.

Benefits of technology

Effectively prevent water vapor from entering the liquid crystal box, avoid contamination of liquid crystal and corroding metal traces, and improve the display quality of the display panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a display panel and a display device. The display panel includes a first substrate, a second substrate, liquid crystal molecules and a sealant. The first substrate and the second substrate are arranged in a box. The first substrate has a display area and a non-display area surrounding the display area. The liquid crystal molecules are arranged between the first substrate and the second substrate and arranged corresponding to the display area. The non-display area includes a sealant area. The sealant is arranged between the first substrate and the second substrate and arranged corresponding to the sealant area. The display panel also includes a waterproof film assembly. The waterproof film assembly includes a first hydrophobic film layer, a water-absorbing film layer and an oily molecular layer. The first hydrophobic film layer is arranged outside the sealant; the water-absorbing film layer is arranged on the side of the first hydrophobic film layer close to the sealant; and the oily molecular layer is arranged on the side of the water-absorbing film layer facing the sealant. The first hydrophobic film layer of the technical solution of the present invention can block external water, and the oily molecular layer can squeeze the water in the box outward and drain the water in the box to the outside of the box with the help of the suction force of the water-absorbing film layer, thereby achieving a waterproof effect.
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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 using the display panel. Background Art

[0002] As customers and the market gradually increase their optical demands and requirements for display panels, we need new methods to improve the display quality of the panels. However, the waterproof performance of traditional display panels is poor, which makes it possible for water vapor to enter the box and cause the risk of contaminating the liquid crystal, contaminating the frame glue, or corroding the metal wiring, ultimately resulting in poor display quality of the display panel. Summary of the invention

[0003] The main purpose of the present invention is to provide a display panel, aiming to improve the problem of poor display quality of the display panel.

[0004] To achieve the above-mentioned purpose, the display panel proposed in the present invention includes a first substrate, a second substrate, liquid crystal molecules and a frame glue, the first substrate and the second substrate are arranged in a box, the first substrate has a display area and a non-display area surrounding the display area, the liquid crystal molecules are arranged between the first substrate and the second substrate, and are arranged corresponding to the display area, the non-display area includes a frame glue area, the frame glue is arranged between the first substrate and the second substrate, and is arranged corresponding to the frame glue area, the display panel also includes a waterproof film assembly, the waterproof film assembly includes a first hydrophobic film layer, a water-absorbing film layer and an oily molecular layer, the first hydrophobic film layer is arranged outside the frame glue; the water-absorbing film layer is arranged on the side of the first hydrophobic film layer close to the frame glue; the oily molecular layer is arranged on the side of the water-absorbing film layer facing the frame glue.

[0005] In one embodiment, the waterproof membrane assembly further includes an oleophobic membrane layer, and the oleophobic membrane layer is disposed on a side of the oily molecular layer close to the sealant.

[0006] In one embodiment, the waterproof membrane assembly further includes a second hydrophobic membrane layer, and the second hydrophobic membrane layer is disposed on a side of the oleophobic membrane layer close to the sealant.

[0007] In one embodiment, at least one of the first hydrophobic film layer, the oleophobic film layer, and the second hydrophobic film layer is a double superphobic film layer.

[0008] In one embodiment, the non-display area further includes a drainage area, which is disposed on a side of the waterproof membrane assembly away from the frame glue, and the drainage area is provided with:

[0009] Drainage outlet;

[0010] A first hydrophilic membrane, the first hydrophilic membrane is disposed in the drainage area and avoids the drainage port; and

[0011] A first guiding structure is provided on the first hydrophilic film. The first guiding structure includes at least a pair of first hydrophobic film segments. Each pair of the first hydrophobic film segments is arranged at an angle, and together they form a first opening away from the drain opening and a second opening close to the drain opening. The width dimension of the first opening is smaller than the width dimension of the second opening.

[0012] In one embodiment, define the width dimension of the first opening as d, the width dimension of the second opening as b, define the direction from the first opening to the second opening as the channel direction, and the angle between the first hydrophobic film segment and the channel direction as α;

[0013] Wherein, 0.6mm ≤ d ≤ 1.0mm; b is 4mm, 8mm or 10mm; α is 30°, 45° or 60°.

[0014] In one embodiment, the display area is rectangular. The drain opening is arranged close to the lower side of the display area. The first hydrophilic films are provided on both the left side and the right side of the display area. The first guiding structures are provided on both the first hydrophilic film on the left side of the display area and the first hydrophilic film on the right side of the display area. And the direction from the first opening to the second opening is the direction from top to bottom.

[0015] In one embodiment, the first hydrophilic films are provided on both the upper side and the lower side of the display area. The first guiding structures are provided on both the first hydrophilic film on the upper side of the display area and the first hydrophilic film on the lower side of the display area. And the direction from the first opening to the second opening of all the guiding structures provided on the upper side of the display area is the direction from left to right or from right to left;

[0016] And / or, the direction from the first opening to the second opening of all the guiding structures provided on the lower side of the display area is the direction from left to right or from right to left.

[0017] In one embodiment, a second hydrophilic film and a second guiding structure are provided on one side of the oil molecule layer close to the first substrate and / or on one side of the oil molecule layer close to the second substrate. The second guiding structure is provided on the side of the second hydrophilic film facing the oil molecule layer;

[0018] The second guiding structure includes at least a pair of second hydrophobic film segments. Each pair of the second hydrophobic film segments is arranged at an angle, and together they form a third opening close to the display area and a fourth opening away from the display area. The width dimension of the third opening is smaller than the width dimension of the fourth opening.

[0019] The present invention further provides a display device, characterized in that it includes a backlight module and the above-mentioned display panel, and the backlight module is disposed on the light incident side of the display panel.

[0020] In the technical solution of the present invention, by disposing the first hydrophobic film layer around the sealant, the water absorption film layer on the side of the first hydrophobic film layer close to the sealant, and the oily molecular layer on the side of the water absorption film facing the sealant, the first hydrophobic film layer is disposed on the outermost periphery. Thus, the first hydrophobic film layer can block external water vapor and prevent the external water vapor from entering the box and polluting the liquid crystal molecules. In addition, when there is also water vapor in the part outside the sealant in the box, for example, when there is water vapor at the position corresponding to the oily molecular layer, the water vapor squeezes the oily molecular layer, and then the oily molecular layer reversely pushes the water vapor out of the space where the oily molecular layer is located. Furthermore, due to the arrangement of the water absorption film layer, when the oily molecular layer reversely pushes the water vapor, it can also rely on the attracting effect of the water absorption film layer to make the water vapor move in the direction away from the sealant. And under the pushing action of the oily molecular layer, the water vapor can also pass through the first hydrophobic film layer, thereby achieving the effect of discharging the water vapor out of the box, avoiding the residual water vapor in the box from polluting the liquid crystal and causing the risk of circuit corrosion, and effectively improving the display quality of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0022] Figure 1 It is a schematic structural diagram of an embodiment of a display panel according to Embodiment 1 of the present invention;

[0023] Figure 2 It is a partial three-dimensional exploded structural diagram of the non-display area of the display panel according to Embodiment 1 of the present invention;

[0024] Figure 3 It is a top view of a first example after removing the second substrate of the display panel according to Embodiment 1 of the present invention;

[0025] Figure 4 It is a top view of a second example after removing the second substrate of the display panel according to Embodiment 1 of the present invention;

[0026] Figure 5 It is a top view of a third example after removing the second substrate of the display panel according to Embodiment 1 of the present invention;

[0027] Figure 6 It is a top view of a fourth example after removing the second substrate of the display panel according to Embodiment 1 of the present invention;

[0028] Figure 7 is Figure 6 the partial structural schematic diagram at position A in

[0029] Figure 8 is Figure 6 the partial structural schematic diagram at position B in

[0030] Figure 9 the top view of the fifth example after canceling the second substrate of the display panel in the first embodiment of the present invention;

[0031] Figure 10 the top view of the sixth example after canceling the second substrate of the display panel in the first embodiment of the present invention;

[0032] Figure 11 the structural schematic diagram of an embodiment of the display device in the second embodiment of the present invention.

[0033] Explanation of the reference numerals in the drawings:

[0034] Label Name Label Name 100 First substrate 101 Display area 110 Drainage port 120 First hydrophilic film 130 First guiding structure 131 First hydrophobic film segment 130a First opening 130b Second opening 140 Second hydrophilic film 150 Second guiding structure 151 Second hydrophobic film segment 150a Third opening 150b Fourth opening 200 Second substrate 300 Liquid crystal molecules 400 Sealant 500 Waterproof film assembly 510 First hydrophobic film layer 520 Water-absorbing film layer 530 Oil-based molecular layer 540 Oil-repellent film layer 550 Second hydrophobic film layer 600 Backlight module

[0035] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0037] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if the embodiments of the present invention involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] Embodiment 1:

[0040] The present invention provides a display panel.

[0041] In the embodiments of the present invention, please refer to Figures 1 to 6 and Figures 9 to 10 , the display panel includes a first substrate 100, a second substrate 200, liquid crystal molecules 300, and sealant 400. The first substrate 100 and the second substrate 200 are arranged in a facing manner. The first substrate 100 has a display area 101 and a non-display area 101 surrounding the display area 101. The liquid crystal molecules 300 are disposed between the first substrate 100 and the second substrate 200 and are arranged corresponding to the display area 101. The non-display area 101 includes a sealant 400 area. The sealant 400 is disposed between the first substrate 100 and the second substrate 200 and is arranged corresponding to the sealant 400 area. The display panel further includes a waterproof film assembly 500. The waterproof film assembly 500 includes a first hydrophobic film layer 510, a water-absorbing film layer 520, and an oily molecule layer 530. The first hydrophobic film layer 510 surrounds the outside of the sealant 400; the water-absorbing film layer 520 is disposed on one side of the first hydrophobic film layer 510 close to the sealant 400; the oily molecule layer 530 is disposed on the side of the water-absorbing film layer 520 facing the sealant 400.

[0042] The first substrate 100 of the display panel may be an array substrate, and the second substrate 200 may be a color filter substrate, or the first substrate 100 may be a color filter substrate and the second substrate 200 may be an array substrate. When the first substrate 100 and the second substrate 200 are arranged in a facing manner, a space for accommodating liquid crystal molecules 300, sealant 400, etc. is formed between the first substrate 100 and the second substrate 200. The first substrate 100 has a display area 101 and a non-display area 101 surrounding the display area 101. It can be understood that the second substrate 200 also has a display area 101 and a non-display area 101 surrounding the display area 101. Among them, the display area 101 of the first substrate 100 is arranged opposite to the display area 101 of the second substrate 200, and the non-display area 101 of the first substrate 100 is arranged opposite to the non-display area 101 of the second substrate 200. The non-display area 101 includes a sealant 400 area, so that the sealant 400 disposed between the first substrate 100 and the second substrate 200 can correspond to the sealant 400 area. The liquid crystal molecules 300 disposed on the first substrate 100 and the second substrate 200 can be arranged corresponding to the display area 101, so as to control the light emission intensity through the steering state of the liquid crystal molecules 300. Since the sealant 400 surrounds the outer periphery of the liquid crystal molecules 300 and the sealant 400 has the property of allowing water vapor to pass through, external water vapor is likely to enter the liquid crystal cell in a conventional display panel, and then pollute the liquid crystal and corrode metal traces, etc., resulting in poor display quality. In the present invention, by further providing a waterproof film assembly 500 outside the sealant 400, it is possible to prevent external water vapor from entering the liquid crystal cell through the sealant 400 to pollute the liquid crystal and corrode metal traces.

[0043] Specifically, the waterproof film assembly 500 includes a first hydrophobic film layer 510, a water-absorbing film layer 520, and an oily molecular layer 530, and they are arranged in sequence from the direction close to the frame adhesive 400 to the direction away from the frame adhesive 400 as the oily molecular layer 530, the water-absorbing film layer 520, and the first hydrophobic film layer 510. Then, the first hydrophobic film layer 510 first blocks the external water vapor, thus preventing the external water vapor from entering the box. Additionally, it can be understood that during the manufacturing process, inevitably, a part of the water vapor will also remain inside the box and in the area outside the frame adhesive 400. In the present invention, by setting the oily molecular layer 530 and the water-absorbing film layer 520, when there is water vapor inside the box, the water vapor squeezes the oily molecular layer 530, so the oily molecular layer 530 repels the water vapor in the reverse direction. Further, the water-absorbing film layer 520 also has an attracting effect on the water vapor molecules. Thus, under the combined action of the attraction of the water-absorbing film layer 520 and the pushing of the oily molecular layer 530, the effect of discharging the water vapor at the position corresponding to the oily molecular layer 530 inside the box is achieved. Additionally, due to the pushing effect of the oily molecular layer 530, the water vapor is subjected to a strong pushing force in the direction away from the frame adhesive 400 and the liquid crystal. Furthermore, under the action of the strong pushing force, the water vapor can also pass through the first hydrophobic film layer 510 and then be discharged to the periphery of the waterproof film assembly 500, achieving a good drainage effect. Additionally, the waterproof film assembly 500 can be disposed around the four sides of the frame adhesive 400 (for example Figure 3 , Figure 6 shown), or the waterproof film assembly 500 is only disposed around the opposite two sides of the frame adhesive 400 (for example Figure 4 , Figure 5 , Figure 9 , Figure 10 ).

[0044] In the technical solution of the present invention, by disposing the first hydrophobic film layer 510 outside the frame adhesive 400, the water-absorbing film layer 520 on the side of the first hydrophobic film layer 510 close to the frame adhesive 400, and the oily molecular layer 530 on the side of the water-absorbing film facing the frame adhesive 400, the first hydrophobic film layer 510 is disposed on the outermost periphery. Thus, the first hydrophobic film layer 510 can block the external water vapor and prevent the external water vapor from entering the box and contaminating the liquid crystal molecules 300. Additionally, when there is also water vapor in the part outside the frame adhesive 400 inside the box, for example, when there is water vapor at the position corresponding to the oily molecular layer 530, the water vapor squeezes the oily molecular layer 530, and then the oily molecular layer 530 reversely pushes the water vapor to leave the space where the oily molecular layer 530 is located. Furthermore, due to the setting of the water-absorbing film layer 520, when the oily molecular layer 530 reversely pushes the water vapor, it can also rely on the attracting effect of the water-absorbing film layer 520 to make the water vapor move in the direction away from the frame adhesive 400. And under the pushing effect of the oily molecular layer 530, the water vapor can also pass through the first hydrophobic film layer 510, and then the effect of discharging the water vapor outside the box is achieved, avoiding the risk of the liquid crystal being contaminated by the residual water vapor inside the box and the circuit being corroded, and effectively improving the display quality of the display panel.

[0045] Further, please refer to Figures 1 to 6 and Figures 9 to 10 , the waterproof film assembly 500 further includes an oleophobic film layer 540, and the oleophobic film layer 540 is disposed on the side of the oily molecular layer 530 close to the frame adhesive 400.

[0046] By disposing the oleophobic film layer 540 on the side of the oily molecular layer 530 close to the frame adhesive 400, the effect of isolating the oily molecular layer 530 from the frame adhesive 400 can be achieved, thereby avoiding the frame adhesive 400 being contaminated by the oily molecular layer 530.

[0047] Further, please refer to Figures 1 to 6 and Figures 9 to 10 , the waterproof film assembly 500 further includes a second hydrophobic film layer 550, and the second hydrophobic film layer 550 is disposed on the side of the oleophobic film layer 540 close to the frame adhesive 400.

[0048] It can be understood that based on the above solution that the waterproof film assembly 500 includes the oleophobic film layer 540, the oleophobic film layer 540 has a blocking effect on oily molecules but allows water vapor to pass through. Therefore, by further providing the second hydrophobic film layer 550 on the side of the oleophobic film layer 540 close to the frame adhesive 400, it is possible to prevent some water vapor in the box from contaminating the frame adhesive 400 and the liquid crystal molecules 300 through the oleophobic film layer 540, and further improve the waterproof effect of the display area 101.

[0049] Further, please refer to Figures 1 to 6 and Figures 9 to 10 , at least one of the first hydrophobic film layer 510, the oleophobic film layer 540, and the second hydrophobic film layer 550 is a dual superhydrophobic film layer.

[0050] It should be noted that the dual superhydrophobic film layer means that it can switch whether to allow water or oil to pass through according to requirements, that is, the same material can achieve two characteristics of hydrophilic (or oleophobic) and oleophilic (or hydrophobic). Specifically, when it is required to act as a hydrophobic function, it can be pre-wetted in oil first, so that it has the characteristics of oleophilic and hydrophobic. When it is required to act as an oleophobic function, it can be pre-wetted in water first, so that it has the characteristics of hydrophilic and oleophobic. It should be noted that the dual superhydrophobic material used in the dual superhydrophobic film layer of the present invention is a prior art, so it will not be elaborated in detail. Since the dual superhydrophobic film layer has the characteristic of being able to switch to hydrophilic or oleophilic, whether hydrophilic or oleophilic is required, this dual superhydrophobic material can be used. It's just that after determining whether it needs to allow water or oil to pass through, it is first pre-wetted and then installed on the display panel.

[0051] Specifically, in this example, at least one of the first hydrophobic film layer 510, the oleophobic film layer 540, and the second hydrophobic film layer 550 is a double super-repellent film layer. For example, when the first hydrophobic film layer 510 and / or the second hydrophobic film layer 550 is a double super-repellent film layer, the double super-repellent film layer can be pre-moistened in oil so that it has oleophilic and hydrophobic properties when it is used again. When the oleophobic film layer 540 is a double super-repellent film layer, the double super-repellent film layer can be pre-moistened in water so that it has hydrophilic and oleophobic properties when it is used again. It can be understood that when the first hydrophobic film layer 510 and the oleophobic film layer 540 are both double super-repellent film layers, they can both be directly made of a double super-repellent material film layer, so that whether it is to form a hydrophilic film layer or an oleophilic film layer, the double super-repellent film layer has a universal beneficial advantage, so that there is no need to consider whether to use a conventional hydrophilic material or a conventional oleophilic material during the production process, thereby reducing the production line and improving production efficiency and cost.

[0052] Further, please refer to Figures 3 to 7 as well as Figure 9 and Figure 10 The non-display area 101 also includes a drainage area, which is arranged on the side of the waterproof membrane assembly 500 away from the frame glue 400. The drainage area is provided with a drainage port 110, a first hydrophilic film 120 and a first guide structure 130. The first hydrophilic film 120 is arranged in the drainage area and avoids the drainage port 110; the first guide structure 130 is arranged on the first hydrophilic film 120, and the first guide structure 130 includes at least one pair of first hydrophobic film segments 131, and each pair of first hydrophobic film segments 131 is arranged at an angle, and together form a first opening 130a away from the drainage port 110 and a second opening 130b close to the drainage port 110, and the width of the first opening 130a is smaller than the width of the second opening 130b.

[0053] By providing a drainage area in the non-display area 101 and a drain port 110 in the drainage area, the water vapor inside the box can be discharged through the drain port 110 after being discharged outside the waterproof film assembly 500. Further, by providing a first hydrophilic film 120 and a first guiding structure 130 in the drainage area, it is further convenient for the water vapor to diffuse on the first hydrophilic film 120 and enter the drain port 110 following the guidance of the first guiding structure 130. The first guiding structure 130 includes at least a pair of first hydrophobic film segments 131, and each pair of first hydrophobic film segments 131 is arranged at an angle, and together they form a first opening 130a far from the drain port 110 and a second opening 130b close to the drain port 110. Then, the width dimension of the formed first opening 130a is different from the width dimension of the formed second opening 130b, thereby making the water vapor flow unidirectional, that is, flowing from the small-sized opening to the large-sized opening, so as to reduce the risk of bidirectional water vapor flow. In addition, by setting the first opening 130a far from the drain port 110, the second opening 130b close to the drain port 110, and the width dimension of the first opening 130a being smaller than the width dimension of the second opening 130b, the water vapor can only flow from the direction far from the drain port 110 towards the direction close to the drain port 110, so as to facilitate the final inflow into the drain port 110, thereby achieving a good drainage effect and avoiding excessive water accumulation in the display panel.

[0054] It should be noted that in another embodiment, for the entire display panel, the non-display area 101 can be provided on the first substrate 100 or the second substrate 200, or can be the area corresponding to the outer frame of the entire display device. Therefore, the drain port 110, the first hydrophilic film 120, and the first guiding structure 130 can also be provided on the outer frame.

[0055] Further, please refer to Figure 6 and Figure 7 , define the width dimension of the first opening 130a as d, the width dimension of the second opening 130b as b, define the direction from the first opening 130a to the second opening 130b as the channel direction, and the angle between the first hydrophobic film segment 131 and the channel direction as α; wherein, 0.6 mm ≤ d ≤ 1.0 mm; b is 4 mm, 8 mm or 10 mm; α is 30°, 45° or 60°.

[0056] Specifically, the width dimension of the first opening 130a can be 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1.0 mm. When the width dimension of the second opening 130b is b = 4 mm, it can be used in combination with any value of the width dimension of the first opening 130a between 0.6 mm and 1.0 mm, and at the same time, in combination with any value of the angle α between the first hydrophobic film section 131 and the channel direction of 30°, 45°, or 60°. Thereby, the first guiding structure 130 can provide a driving effect for the movement of water vapor, and then can better guide the unidirectional self-diffusion of water vapor from the direction of the first opening 130a to the second opening 130b, that is, from the direction away from the drain port 110 to the direction close to the drain port 110, ensuring that the flow direction of water vapor is more regular and avoiding the situation of bidirectional flow.

[0057] Further, please refer to Figures 3 to 6 and Figure 9 and Figure 10 . The display area 101 is rectangular, the drain port 110 is arranged close to the lower side of the display area 101, the first hydrophilic films 120 are provided on both the left side and the right side of the display area 101, and the first guiding structures 130 are provided on both the first hydrophilic film 120 on the left side of the display area 101 and the first hydrophilic film 120 on the right side of the display area 101. Moreover, the direction from the first opening 130a to the second opening 130b is the direction from top to bottom.

[0058] By arranging the drain port 110 close to the lower side of the display area 101, the water flow can also flow to the drain port 110 more conveniently by the action of gravity. By setting the direction from the first opening 130a to the second opening 130b of the first guiding structures 130 on both the left side and the right side of the display area 101 to be the direction from top to bottom, it further has a good driving effect on the movement of the water flow flowing downward to the drain port 110, thereby improving the efficiency of water flow discharge, ensuring that more water flow is discharged outside the display panel, and effectively improving the display quality of the display panel.

[0059] Further, please refer to Figures 3 to 6 . The first hydrophilic films 120 are provided on both the upper side and the lower side of the display area 101, and the first guiding structures 130 are provided on both the first hydrophilic film 120 on the upper side of the display area 101 and the first hydrophilic film 120 on the lower side of the display area 101. Moreover, the direction from the first opening 130a to the second opening 130b of all the first guiding structures 130 provided on the upper side of the display area 101 is the direction from left to right or the direction from right to left; and / or, the direction from the first opening 130a to the second opening 130b of all the first guiding structures 130 provided on the lower side of the display area 101 is the direction from left to right or the direction from right to left.

[0060] By providing the first hydrophilic film 120 both above and below the display area 101, it is convenient for water vapor to diffuse outside the sealant 400 and the waterproof film assembly 500 above the display area 101, and it is also convenient for water vapor to diffuse outside the sealant 400 and the waterproof film assembly 500 below the display area 101, thereby avoiding the risk that excessive water vapor accumulates in a certain local position and it is difficult to discharge the water vapor at this position outside the display panel.

[0061] Specifically, by setting the direction from the first opening 130a to the second opening 130b of all the first guiding structures 130 on the first hydrophilic film 120 provided above the display area 101 to be from left to right or from right to left, it is convenient for the water vapor on the first hydrophilic film 120 provided above the display area 101 to flow in the same direction, thereby having unidirectional fluidity, and it is convenient for all the water vapor to flow to the drain port 110 through the first guiding structure 130 on the left or right side of the display area 101. Further, there may be at least two drain ports 110, and the at least two drain ports 110 are respectively close to the left edge and the right edge of the display panel, so that no matter whether the guiding direction of the first guiding structure 130 below the display area 101 is to the left or to the right, the effect of flowing to the drain port 110 can be achieved, and the drainage efficiency is also improved.

[0062] Further, please refer to Figure 6 、 Figure 8 、 Figure 9 and Figure 10 . A second hydrophilic film 140 and a second guiding structure 150 are provided on one side of the oily molecular layer 530 close to the first substrate 100 and / or on one side of the oily molecular layer 530 close to the second substrate 200. The second guiding structure 150 is provided on the side of the second hydrophilic film 140 facing the oily molecular layer 530; the second guiding structure 150 includes at least a pair of second hydrophobic film segments 151, and each pair of second hydrophobic film segments 151 is arranged at an angle, and together form a third opening 150a close to the display area 101 and a fourth opening 150b far from the display area 101, and the width dimension of the third opening 150a is smaller than the width dimension of the fourth opening 150b.

[0063] By further providing a second hydrophilic film 140 and a first guiding structure 130 in the region of the non-display area 101 corresponding to the oily molecular layer 530, it is further convenient for water vapor to diffuse on the second hydrophilic film 140 and flow following the guidance of the second guiding structure 150. The second guiding structure 150 includes at least a pair of second hydrophobic film segments 151, and each pair of second hydrophobic film segments 151 is arranged at an angle, and together they form a third opening 150a close to the display area 101 and a fourth opening 150b far from the display area 101. The width dimension of the formed third opening 150a is different from the width dimension of the formed fourth opening 150b, thereby making the water vapor flow unidirectional, that is, flowing from the small-sized opening to the large-sized opening, so as to reduce the risk of bidirectional water vapor flow. In addition, by arranging the third opening 150a close to the display area 101, the second opening 130b far from the display area 101, and the width dimension of the third opening 150a is smaller than the width dimension of the fourth opening 150b, it makes the water vapor flow only from the direction close to the display area 101 towards the direction far from the display area 101, so as to further drive the water vapor to be pushed towards the outside of the box, thereby achieving a better drainage effect and avoiding excessive water accumulation in the display panel.

[0064] Embodiment 2:

[0065] The present invention also provides a display device, as Figure 11 shown. The display device includes a backlight module 600 and a display panel. The specific structure of the display panel refers to the above embodiments. Since this display device adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the backlight module 600 is arranged on the light-incident side of the display panel. The backlight module 600 can provide light. By arranging the backlight module 600 on the light-incident side of the display panel, the display panel can display the picture normally.

[0066] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A display panel, comprising a first substrate, a second substrate, liquid crystal molecules and sealant. The first substrate and the second substrate are arranged in a facing manner. The first substrate has a display area and a non-display area surrounding the display area. The liquid crystal molecules are disposed between the first substrate and the second substrate and correspond to the display area. The non-display area includes a sealant area. The sealant is disposed between the first substrate and the second substrate and corresponds to the sealant area. It is characterized in that, The display panel further includes a waterproof membrane assembly, and the waterproof membrane assembly includes: A first hydrophobic film layer, wherein the first hydrophobic film layer is disposed outside the sealant; A water-absorbing film layer, the water-absorbing film layer being disposed on a side of the first hydrophobic film layer close to the sealant; and An oily molecular layer, the oily molecular layer being disposed on a side of the water-absorbing film layer facing the sealant; A second hydrophilic film and a second guide structure are provided on a side of the oily molecule layer close to the first substrate and / or a side of the oily molecule layer close to the second substrate, and the second guide structure is provided on a side of the second hydrophilic film facing the oily molecule layer; The second guiding structure includes at least one pair of second hydrophobic film segments, and each pair of the second hydrophobic film segments are arranged at an angle and together form a third opening close to the display area and a fourth opening away from the display area, and the width of the third opening is smaller than the width of the fourth opening.

2. The display panel according to claim 1, wherein The waterproof membrane assembly further comprises an oleophobic membrane layer, and the oleophobic membrane layer is arranged on a side of the oily molecular layer close to the frame glue.

3. The display panel according to claim 2, wherein The waterproof membrane assembly further includes a second hydrophobic membrane layer, and the second hydrophobic membrane layer is arranged on a side of the oleophobic membrane layer close to the sealant.

4. The display panel according to claim 3, characterized in that, At least one of the first hydrophobic film layer, the oleophobic film layer, and the second hydrophobic film layer is a double super-phobic film layer.

5. The display panel according to claim 1, characterized in that, The non-display area further includes a drainage area, which is arranged on a side of the waterproof membrane assembly away from the frame glue, and the drainage area is provided with: Drainage outlet; A first hydrophilic membrane, the first hydrophilic membrane is disposed in the drainage area and avoids the drainage port; and A first guide structure, wherein the first guide structure is disposed on the first hydrophilic membrane, the first guide structure comprises at least one pair of first hydrophobic membrane segments, and each pair of the first hydrophobic membrane segments is disposed at an angle and together form a first opening and a second opening, and a width dimension of the first opening is smaller than a width dimension of the second opening; The display area is rectangular, the drain outlet is arranged close to the lower side of the display area, the first hydrophilic film is provided on the left side of the display area and the right side of the display area, and the first guide structure is provided on the first hydrophilic film on the left side of the display area and the first hydrophilic film on the right side of the display area, and the direction from the first opening to the second opening is from top to bottom.

6. The display panel according to claim 5, wherein The width dimension of the first opening is defined as d, the width dimension of the second opening is defined as b, the direction from the first opening to the second opening is defined as the channel direction, and the angle between the first hydrophobic membrane segment and the channel direction is defined as α; Among them, 0.6mm≤d≤1.0mm; b is 4mm, 8mm or 10mm; α is 30°, 45° or 60°.

7. The display panel according to claim 5, characterized in that, The first hydrophilic film is disposed on both the upper side and the lower side of the display area, and the first guide structure is disposed on both the first hydrophilic film disposed on the upper side of the display area and the first hydrophilic film disposed on the lower side of the display area, and the direction from the first opening to the second opening of all the first guide structures disposed on the upper side of the display area is from left to right or from right to left; And / or, the direction from the first opening to the second opening of all the first guiding structures provided on the lower side of the display area is a left-to-right direction or a right-to-left direction.

8. A display device, characterized in that, It includes a backlight module and a display panel as described in any one of claims 1 to 7, and the backlight module is provided on the light incident side of the display panel.

Citation Information

Patent Citations

  • Display screen and electronic device

    CN108200247A

  • Liquid crystal display device

    JP1998232404A