CN117794283A

CN117794283A - Waterproof structure of display panel and display device

Info

Publication number: CN117794283A
Application number: CN202311837963.2A
Authority: CN
Inventors: 王洪松; 叶利丹
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2023-12-27
Filing date: 2023-12-27
Publication date: 2024-03-29

Abstract

The application discloses waterproof construction and display device of a display panel, waterproof construction sets up at least in a side of the display panel, waterproof construction includes unidirectional conduction structure, control structure and steam detection structure, unidirectional conduction structure is provided with unidirectional communication pipeline, one end of unidirectional communication pipeline is exposed; the control structure is arranged between the unidirectional conduction structure and the display panel and comprises a control channel and a valve, one end of the control channel is connected with the other end of the unidirectional communication pipeline, and the other end of the control channel is connected with the inside of the display panel; the water vapor detection structure is arranged between the unidirectional conduction structure and the control channel and is used for detecting the water vapor or oxygen concentration at one side of the unidirectional conduction structure, which is close to the control channel, so as to control the opening and closing of the valve. Through setting up waterproof construction, can get rid of the inside steam of display panel through the exhaust mode, prevent that display panel from invading inefficacy because of steam, promote display panel's life.

Description

Waterproof structure of display panel and display device

Technical Field

The application relates to the technical field of display, in particular to a waterproof structure of a display panel and a display device.

Background

With the rapid development of display technology, OLED display technology has become one of the hot reality technologies. The organic electroluminescent diode (Organic Light Emitting Diode, OLED for short) display panel has the characteristics of self-luminescence, high contrast, wide viewing angle, high response speed and the like. The working principle is that an ITO (Indium Tin Oxide) transparent electrode and a metal electrode are respectively used as an anode and a cathode of the device, electrons and holes are respectively injected into an electron transport layer and a hole transport layer from the cathode and the anode under the drive of certain voltage, and the electrons and the holes respectively migrate to a light-emitting layer through the electron transport layer and the hole transport layer and meet in the light-emitting layer to form excitons, so that molecules of the light-emitting layer are excited, and visible light is radiated.

The encapsulation technology is particularly critical because of the poor stability of the OLED, which is extremely sensitive to both water and oxygen. The purpose of encapsulation is mainly to avoid the ingress of moisture and oxygen into the OLED, but when used in conditions where moisture is sufficient, stronger and more stringent encapsulation techniques should be required.

Disclosure of Invention

The utility model aims at providing a waterproof construction and display device of display panel, through setting up waterproof construction, can get rid of the inside steam of display panel through the outlying mode, prevent that display panel from invading inefficacy because of steam, promote display panel's life.

The application discloses a waterproof structure of a display panel, wherein the waterproof structure is at least arranged on one side surface of the display panel, the waterproof structure comprises a unidirectional conduction structure, a control structure and a water vapor detection structure, the unidirectional conduction structure is provided with a unidirectional communication pipeline, and one end of the unidirectional communication pipeline is exposed; the control structure is arranged between the unidirectional conduction structure and the display panel and comprises a control channel and a valve, one end of the control channel is connected with the other end of the unidirectional communication pipeline, and the other end of the control channel is connected with the inside of the display panel; the water vapor detection structure is arranged between the unidirectional conduction structure and the control channel and is used for detecting the water vapor or oxygen concentration at one side of the unidirectional conduction structure, which is close to the control channel, and controlling the opening and closing of the valve according to the water vapor or oxygen concentration.

Optionally, when the water vapor detection structure detects that the water vapor or oxygen concentration is higher than a first threshold value, the valve is controlled to be closed, so that the control channel is not communicated with the unidirectional communication pipeline; when the water vapor detection structure detects that water vapor or oxygen is lower than or equal to a first threshold value, the valve is controlled to be opened, so that the control channel is communicated with the one-way communication pipeline.

Optionally, the unidirectional communication pipeline includes a tesla valve channel, and a conduction direction of the tesla valve channel is a direction of the control structure towards the outside of the display panel.

Optionally, the display panel includes a first substrate, a second substrate, and a pixel module disposed between the first substrate and the second substrate, and the waterproof structure is disposed between the first substrate and the second substrate and outside the pixel module; a plurality of protruding structures are arranged on one side, close to the waterproof structure, of the first substrate or the second substrate; a plurality of groove structures are arranged on one side, close to the first substrate or the second substrate, of the waterproof structure; the plurality of protruding structures and the plurality of groove structures are arranged in a one-to-one correspondence mode, and adhesive is arranged between the protruding structures and the groove structures and used for fixing the protruding structures and the groove structures.

Optionally, at least one accommodating groove is arranged on one side of the unidirectional conduction structure, which is close to the first substrate or the second substrate, and a drying agent or a sealing agent is arranged in the accommodating groove.

Optionally, the control structure further comprises an electromagnet, a first spring and a first magnet, wherein the electromagnet is abutted with the first magnet through the first spring; when the water vapor detection structure detects that the concentration of external water vapor or oxygen is lower than or equal to a first threshold value, the electromagnet is electrified, and the electromagnet and the first magnet are attracted to each other, so that the first magnet moves in a direction away from the valve, and the valve is in an open state; when the water vapor detection structure detects that the concentration of external water vapor or oxygen is higher than a first threshold value, the electromagnet is powered off, and under the action of the first spring, the first magnet moves to one side close to the valve to control the valve to be in a closed state.

Optionally, the valve comprises a sealing rubber, and the sealing rubber is arranged in the control channel; when the electromagnet is attracted with the first magnet, the valve is in an open state, the sealing rubber is in a natural state, and the control channel is kept in a conducting state; when the electromagnet is powered off, under the action of the first spring, the first magnet moves to one side far away from the electromagnet, the first magnet extrudes the sealing rubber, the sealing rubber deforms to block the control channel, and the control channel is kept in a closed state.

Optionally, the control structure further comprises a locking plate and a locking braking mechanism, wherein the locking plate is controlled to move through the locking braking mechanism and can move until the locking plate is arranged between the electromagnet and the valve; when the electromagnet is electrified, the first magnet moves in a direction away from the valve, and the locking plate moves between the first magnet and the valve and is limited to the first magnet.

Optionally, the locking braking mechanism includes a pressurizing structure and a second spring, the second spring is arranged between the pressurizing structure and the locking plate, and when the pressurizing structure works, the locking plate is driven to be separated from the position between the first magnet and the valve, and the second spring is compressed; when the pressurizing structure does not work, the second spring pushes the locking plate to enter between the first magnet and the valve.

The application also discloses a display device, including display panel and foretell display panel's waterproof construction.

This application is through setting up waterproof construction in display panel's side, and this waterproof construction has steam detection structure, detects steam or oxygen in the unidirectional conduction structure through steam detection structure, when belonging to the default, then can control the switching on and closing of control channel through opening and closing of valve. When the control channel is conducted, the water vapor in the display panel can be discharged after the control channel is communicated with the one-way communicating pipeline, and when the control channel is closed, the external water vapor can be prevented from entering, so that the sealing effect is achieved. This application is through design one-way conduction structure, rather than complex control structure etc for inside steam of display panel can be to the outside exclusion, and outside steam can not flow in to display panel, finally makes display panel's inside moisture very little. Secondly, the display panel of this application can use in the environment that humidity is great, and steam is abundant, and sustainable with the steam discharge in the display panel through waterproof construction for display panel even under the higher circumstances of outside steam concentration, also can keep display panel's inside steam concentration low, promotes display panel's encapsulation effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art. In the drawings:

FIG. 1 is a schematic view of a display panel of the present application;

FIG. 2 is a schematic illustration of a waterproof construction of the present application;

FIG. 3 is a schematic view of a first substrate, a second substrate, and a waterproof structure of the present application;

FIG. 4 is a schematic illustration of the control structure of the present application in a first mode of operation;

FIG. 5 is a schematic illustration of the control structure of the present application in a second mode of operation;

FIG. 6 is a schematic view of a locking brake mechanism of the present application;

FIG. 7 is a schematic view of a section AA of the locking brake mechanism of the present application;

fig. 8 is a schematic view of a display device of the present application.

Wherein, 100, waterproof structure; 110. a unidirectional conductive structure; 111. a groove structure; 112. a receiving groove; 120. a water vapor detection structure; 130. a control structure; 131. a control channel; 132. a valve; 133. an electromagnet; 134. a first spring; 135. a first magnet; 140. a locking braking mechanism; 141. a locking plate; 142. a second spring; 143. a supercharging structure; 200. a display panel; 210. a first substrate; 211. a bump structure; 220. a second substrate; 230. a pixel module; 300. a display device; 310. and a driving circuit board.

Detailed Description

It should be understood that the terminology, specific structural and functional details disclosed herein are merely representative for purposes of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. In addition, terms of the azimuth or positional relationship indicated by "upper", "lower", "left", "right", "vertical", "horizontal", etc., are described based on the azimuth or relative positional relationship shown in the drawings, and are merely for convenience of description of the present application, and do not indicate that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The present application is described in detail below with reference to the attached drawings and alternative embodiments.

Fig. 1 is a schematic diagram of a display panel of the present application, referring to fig. 1, the present application discloses a display panel 200, where the display panel 200 includes a waterproof structure 100, a first substrate 210 and a second substrate 220, the first substrate 210 and the second substrate 220 are disposed opposite to each other, a plurality of functional film layers, such as a driving layer, an organic light emitting layer, and an encapsulation layer, are disposed on a side of the first substrate 210, which is close to the second substrate 220, and the driving layer drives the organic light emitting layer to emit light and display a picture, and the encapsulation layer has a main function of preventing the organic light emitting layer from being corroded by water and oxygen, thereby causing failure.

The display panel 200 of the present application is an organic light emitting display panel 200, and a polarizing plate may be disposed on a packaging layer, or a POL-less (depolarizing) technology may also be adopted, that is, a mode of forming a color filter on the packaging layer, and the waterproof structure 100 of the present application may be suitable for waterproof functions of various display panels 200.

The organic light-emitting layer in the display panel 200 forms a plurality of light-emitting units, each light-emitting unit forms a sub-pixel, each several sub-pixels with different colors form a pixel unit, the pixel units arranged in a plurality of arrays form a display module, and the picture to be displayed drives the plurality of pixel units to emit light by providing different data signals for the display module according to the picture to be displayed, so that display is realized.

Fig. 2 is a schematic view of a waterproof structure of the present application, and referring to fig. 2, the present application further discloses a waterproof structure 100 of a display panel 200, where the waterproof structure 100 is at least disposed on one side of the display panel 200, the waterproof structure 100 includes a unidirectional conduction structure 110, a control structure 130, and a water vapor detection structure 120, the unidirectional conduction structure 110 is provided with a unidirectional communication pipe, and one end of the unidirectional communication pipe is exposed; the control structure 130 is disposed between the unidirectional conduction structure 110 and the display panel 200, and comprises a control channel 131 and a valve 132, wherein one end of the control channel 131 is connected with the other end of the unidirectional communication pipeline, and the other end of the control channel 131 is connected with the inside of the display panel 200; the water vapor detection structure 120 is disposed between the unidirectional conduction structure 110 and the control channel 131, and is configured to detect a water vapor or oxygen concentration of a side of the unidirectional conduction structure, which is close to the control channel, and control opening and closing of the valve 132 according to the water vapor or oxygen concentration.

This application is through setting up waterproof construction 100 in the side of display panel 200, and this waterproof construction 100 has steam and detects structure 120, detects steam or oxygen in the unidirectional conduction structure 110 through steam and detects structure 120, when being in the preset condition, then can control the switching on and off of control channel 131 through opening and closing of valve 132. When the control channel 131 is conducted, the water vapor in the display panel 200 can be discharged after being communicated with the one-way communication pipeline, and when the control channel 131 is closed, the external water vapor can be prevented from entering, so that the sealing effect is achieved. The unidirectional conduction structure 110 and the control structure 130 matched with the unidirectional conduction structure are designed, so that water vapor in the display panel 200 can be discharged to the outside, and external water vapor cannot flow into the display panel 200, and finally the water vapor in the display panel 200 is very little. Secondly, the display panel 200 of this application can use in the environment that humidity is great, and steam is abundant, and sustainable with the steam in the display panel 200 discharges through waterproof construction 100 for display panel 200 even under the higher condition of outside steam concentration, also can keep display panel 200's inside steam concentration low, promotes display panel 200's encapsulation effect.

In this application, the waterproof structure 100 is mainly disposed between the first substrate 210 and the second substrate 220, and is at least located at one side of the first substrate 210 and the second substrate 220, and is clamped around the first substrate 210 and the second substrate 220. The waterproof structure 100 is used for preventing water vapor from entering the display panel 200, and from another aspect, the waterproof structure 100 has the more important effect of discharging the water vapor inside the display panel 200, and the function of discharging the water vapor inside the display panel 200 is realized through the functional coordination among the unidirectional conduction structure 110, the control structure 130 and the water vapor detection structure 120.

The first substrate 210 and the second substrate 220 may be glass substrates, or flexible transparent substrates, or the first substrate 210 is a flexible substrate, and the second substrate 220 is a glass substrate.

With continued reference to fig. 2, when the moisture detecting structure 120 detects that the moisture or oxygen concentration is higher than the first threshold value, the valve 132 is controlled to be closed, so that the control channel 131 is not communicated with the unidirectional communication pipeline; when the moisture detecting structure 120 detects that the moisture or oxygen concentration is lower than or equal to the first threshold, the valve 132 is controlled to be opened, so that the control channel 131 is communicated with the unidirectional communication pipeline.

The water vapor detection structure 120 includes a water vapor detection sensor, which is mainly used for detecting the water vapor content in the air, and is disposed between the control channel 131 and the unidirectional communication pipeline, and can detect the water vapor concentration from the unidirectional communication pipeline to the control pipeline. In another embodiment, the moisture detecting sensor may be replaced by or combined with an oxygen concentration detector, and the valve 132 is controlled to be opened by detecting the oxygen concentration, so as to prevent the moisture concentration or the oxygen in the interior from being too high, which is detrimental to the organic light emission. The embodiment is described below by way of example only with respect to water vapor, which is the same as the oxygen in the practical application.

Specifically, the outermost one is the unidirectional conducting structure 110, and the unidirectional communicating pipe in the unidirectional conducting structure 110 is directly communicated with the outside. The unidirectional communication pipe is a tesla valve pipe, and the conduction direction of the tesla valve channel is the direction of the control structure 130 facing the outside of the display panel 200.

The Tesla valve pipeline is a passive one-way conduction valve, so that fluid can flow unidirectionally. The fluid includes liquid fluid and gas fluid. The application can realize constructing the air flow direction by means of the vacuum pump outside the display panel 200, and connect the vacuum suction port of the vacuum pump to one end of the tesla valve pipeline, and suck away the water vapor and the oxygen inside the display panel 200 by means of vacuumizing, which can be understood that the vacuum pump can be further arranged on the back plate of the display panel 200 and controlled by the water vapor detection structure 120 or independently controlled, and when the valve 132 is opened, the vacuum pump is controlled to work to suck away the water vapor and the oxygen inside the display panel 200. Wherein, the water vapor refers to the water vapor in the unidirectional communication pipeline. If the vacuum pump and the one-way communicating pipeline are in a detachable connection state, when the vacuum pump is in an unconnected state, the other end of the one-way communicating pipeline is communicated with the outside and is in a naked state. When the vacuum pump is in a connection state with the unidirectional communication pipeline, one end of the unidirectional communication pipeline is not exposed any more.

The waterproof structure 100 that this application set up has two kinds of mode, and first mode, when external steam concentration is low, then control valve 132 opens for one-way communication pipeline is in the intercommunication state with control pipeline, makes the inside steam that exists of display panel 200 flow along the air current direction. In the second working mode, when the external water vapor concentration is higher, the control valve 132 is closed, so that the unidirectional communication pipeline is not communicated with the control pipeline any more, external water vapor cannot enter the display panel 200, and the water vapor in the display panel 200 cannot be discharged out of the outside.

The flow direction from the control pipeline to the one-way communication pipeline is the water vapor discharge direction, and the air flow of the one-way communication pipeline can only move along the water vapor discharge direction, and the air flow in the one-way communication pipeline can not move along the opposite direction of the water vapor discharge direction due to the action of the Tesla valve pipeline.

The application is to design the matching of the flow field track and the waterproof structure 100, so that the water vapor inside the display panel 200 can be discharged to the outside, but the outside water vapor cannot flow into the display panel 200, and finally the water vapor content inside the display panel 200 can be extremely low. The water vapor inside the display panel 200 may be understood as that even though the display panel 200 adopts a strict packaging layer packaging technology, a film layer interface or an adhesion portion between the first substrate 210 and the second substrate 220 always has a possibility of intrusion of water vapor and oxygen, so that the water vapor mainly intrudes into the portion of the display panel, and the water vapor can be removed through a discharging manner, thereby prolonging the service life of the display panel 200.

Fig. 3 is a schematic view of the first substrate, the second substrate and the waterproof structure of the present application, referring to fig. 3, a plurality of groove structures 111 are disposed on a side of the unidirectional conductive structures 110 near the first substrate 210 or the second substrate 220; the plurality of protruding structures 211 and the plurality of groove structures 111 are arranged in a one-to-one correspondence, and adhesive is arranged between the protruding structures 211 and the groove structures 111 and used for fixing the protruding structures 211 and the groove structures 111.

The inside viscose that sets up of a plurality of recesses is used for bonding protruding structure 211 and recess structure 111, realizes the fixed to waterproof structure 100, and through the mode of bonding, seals between waterproof structure 100 and first base plate 210, the second base plate 220.

It can be understood that, on the periphery of the first substrate 210 and the second substrate 220 where the waterproof structure 100 is not provided, a sealant is also provided to bond the first substrate 210 and the second substrate 220, so as to achieve sealing between the first substrate 210 and the second substrate 220.

Specifically, at least one accommodating groove 112 is disposed on a side of the unidirectional conductive structure 110 near the first substrate 210 or the second substrate 220, and a desiccant or a sealant is disposed in the accommodating groove 112. Moisture entering between the waterproof structure 100 and the first and second substrates 210 and 220 may be partially absorbed by the desiccant disposed in the receiving groove 112. The accommodating groove 112 in the present embodiment may be filled with rubber, so that the sealing performance between the waterproof structure 100 and the first and second substrates 210 and 220 is ensured.

The accommodating grooves 112 may be disposed at a side of the groove structure 111 away from the display module, and the number of the accommodating grooves 112 is less than that of the groove structure 111. The groove structure 111 fixes the waterproof structure 100 by being adhered to the protrusion structure 211. To some extent, there is also a seal between the groove structures 111 and the protrusion structures 211, preventing moisture from entering.

In one embodiment, the waterproof structure 100 may be a cylinder, and the unidirectional communication pipe and the control pipe are disposed in the cylinder and parallel to the length direction of the cylinder. While the groove structures 111, the receiving grooves 112, etc. are provided on the cylindrical surface of the cylinder.

Fig. 4 is a schematic diagram of the control structure in the first working mode, and fig. 5 is a schematic diagram of the control structure in the second working mode, referring to fig. 4-5, a specific control manner is provided in this embodiment, in which a magnetic control scheme is adopted, that is, a manner of magnetically attracting by an electromagnet 133, to control opening and closing of the valve 132. Specifically, the control structure 130 includes an electromagnet 133, a first spring 134, and a first magnet 135, and the electromagnet 133 is abutted to the first magnet 135 by the first spring 134.

In the first operation mode, that is, when the moisture detecting structure 120 detects that the external moisture or oxygen concentration is lower than or equal to the first threshold, the electromagnet 133 is electrified, and the electromagnet 133 attracts the first magnet 135, so that the first magnet 135 moves in a direction away from the valve 132, and the valve 132 is in an open state. Since the first spring 134 is provided between the electromagnet 133 and the first magnet 135, even when the electromagnet 133 and the first magnet 135 attract each other, the first magnet 135 and the electromagnet 133 do not directly contact each other, and the first spring 134 therebetween is in a compressed state but still in a range of elastic deformation.

In the second operation mode, that is, when the moisture detecting structure 120 detects that the outside moisture or oxygen concentration is higher than the first threshold, the electromagnet 133 is powered off, and under the action of the first spring 134, the first magnet 135 moves to a side close to the valve 132, so as to control the valve 132 to be in a closed state. At this time, the first magnet 135 mainly uses the elastic force of the first spring 134, and the first magnet 135 is abutted against the valve 132 by the elastic force, so as to control the valve 132 to be closed.

The electromagnet 133, the first spring 134, and the first magnet 135 are respectively disposed in the control channel 131, and an elastic direction of the first spring 134 is parallel to a conducting direction of the control channel 131. In other words, the first magnet 135 is driven by the electromagnet 133 and the first spring 134 to move back and forth in the control passage 131.

In this embodiment, the valve 132 includes a sealing rubber disposed within the control passage 131; when the electromagnet 133 attracts the first magnet 135, the valve 132 is in an open state, the sealing rubber is in a natural state, and the control channel 131 is kept in a conducting state; when the electromagnet 133 is turned off, the first magnet 135 moves to a side far away from the electromagnet 133 under the action of the first spring 134, the first magnet 135 presses the sealing rubber, the sealing rubber deforms to block the control channel 131, and the control channel 131 keeps a closed state.

The valve 132 is formed by using sealing rubber, the length direction of the sealing rubber is parallel to the conducting direction of the control channel 131, and in the second working mode, the first magnet 135 is abutted against the sealing rubber under the action of the elastic force of the first spring 134, and the sealing rubber is deformed under the action of the elastic force. Since the other end of the sealing rubber, which is far from the first magnet 135, is fixed, when the first magnet 135 presses the sealing rubber, the sealing rubber is formed in a conducting direction perpendicular to the control channel 131, fills the control channel 131, and seals the control channel 131, so that the control channel 131 is in a closed state, and air flows at both sides of the control channel 131 cannot be exchanged.

Wherein, sealing rubber sets up on the inner wall of control channel 131, and when not taking place the extrusion, sealing rubber does not totally block up control channel 131, and after taking place the extrusion, sealing rubber blocks up control channel 131. What this application utilized is that rubber is extruded and takes place the shutoff control channel 131 after deformation, forms valve 132 and cuts off, and after rubber was removed by extruded power, rubber resumes the deformation back for control channel 131 keeps switching on, realizes the discharge of the inside steam of display panel 200.

In another embodiment, the control channel 131 is not limited to a set of the electromagnet 133, the first magnet 135 and the first spring 134, and a plurality of sets of the first spring 134 and the first magnet 135 disposed in parallel may be provided to press the sealing rubber from a plurality of positions. The plurality of sets of first springs 134 and first magnets 135 arranged in parallel may be driven by the same electromagnet 133.

Further, the sealing rubber is ring-shaped and is circumferentially disposed on the inner wall of the control channel 131, and the middle part of the sealing rubber forms a hollow channel. During the extrusion process of the first magnet 135, the sealing rubber deforms to block the hollow passage, so that the control passage 131 is closed.

Fig. 6 is a schematic view of a locking braking mechanism of the present application, and fig. 7 is a schematic view of a section AA of the locking braking mechanism of the present application, and referring to fig. 6-7, based on the previous embodiment, the present application further improves a magnetic control scheme, mainly when the waterproof structure 100 is in the first operation mode, the electromagnet 133 magnetically attracts the first magnet 135, the first magnet 135 is fixed by using the added locking braking mechanism, and at this time, the magnetic attraction function of the electromagnet 133 can be turned off, and the locking braking mechanism is used to limit the first magnet 135.

Specifically, the control structure 130 further includes a locking plate 141 and a locking brake mechanism 140, and the locking plate 141 is controlled to move by the locking brake mechanism, so that the locking plate 141 is disposed between the electromagnet 133 and the valve 132; when the electromagnet 133 is turned on, the first magnet 135 moves in a direction away from the valve 132, and the locking plate 141 moves between the first magnet 135 and the valve 132 and is positioned at the first magnet 135.

In the first operation mode of the waterproof structure 100, the electromagnet 133 is required to continuously attract the first magnet 135, and in this embodiment, the locking plate 141 is further added to limit the first magnet 135. When the locking plate 141 is inserted into the control channel 131 and the electromagnet 133 attracts the first magnet 135, the first magnet 135 is located on one side of the locking plate 141 near the electromagnet 133, even if the electromagnet 133 is turned off, the electromagnet 133 does not attract the first magnet 135 any more, and due to the existence of the locking plate 141, the first magnet 135 is not moved towards the valve 132 any more under the action of the elastic force of the first spring 134, so as to limit the first magnet 135.

Specifically, the locking braking mechanism 140 includes a pressurizing structure 143 and a second spring 142, the second spring 142 is disposed between the pressurizing structure 143 and the locking plate 141, and when the pressurizing structure 143 works, the locking plate 141 is driven to disengage from between the first magnet 135 and the valve 132, and the second spring 142 is compressed; when the pressurizing structure 143 is not operated, the second spring 142 pushes the locking plate 141 to enter between the first magnet 135 and the valve 132.

The pressurizing structure 143 may include an inner chamber in which a heated expansion gas, such as carbon dioxide gas, is disposed, and the locking brake mechanism 140 further includes a sealing chamber in which the locking plate 141 is movable without affecting sealability, and the second spring 142 is disposed. The sealing cavity is connected with the inner cavity through an air pipe, when the gas in the inner cavity expands, the gas in the sealing cavity expands to push the locking plate 141 to move outwards of the sealing cavity, and the volume of the sealing cavity is increased. When the cavity cools, the gas contracts when it cools, the seal cavity contracts accordingly, and the locking plate 141 moves inward under the drive of the second spring 142.

Of course, the present application provides only one specific embodiment of the locking brake mechanism 140, and other embodiments further include a cylinder driven locking plate 141 and a buckle driven locking plate 141, which should also belong to the protection scope of the present application.

Fig. 8 is a schematic view of a display device of the present application, and referring to fig. 8, the present application discloses a display device 300 including a driving circuit board 310 and the display panel 200 described above, and the display panel 200 is provided with the waterproof structure 100 described above. The driving circuit board 310 is used for driving the display panel 200 to display, and the display panel 200 is an organic light emitting display panel 200.

Specifically, in another embodiment, the display panel 200 may be a display panel 200 assembled by a plurality of pixel modules 230, where the display panel 200 includes a plurality of pixel modules 230, and each pixel module 230 has a plurality of sub-pixels disposed thereon; a pixel driving circuit is respectively disposed in the plurality of pixel modules 230, and the pixel driving circuit drives the pixel modules 230 to emit light for display; the pixel driving circuit comprises a communication module and a control module, wherein the communication module is used for receiving a data signal and controlling the pixel module 230 to emit light for display through the control module according to the data signal; the plurality of pixel modules 230 are detachably disposed on the back plate of the display panel 200. The plurality of sub-pixels on each pixel module 230 respectively form a pixel unit; the plurality of subpixels include one red light emitting unit, one green light emitting unit, and one blue light emitting unit. Any color can be displayed by adjusting different gray scale voltages through three different color sub-pixels. The display panel 200 is displayed by the modularized pixel modules 230, corresponding to each pixel unit on the display panel 200 forming a module.

In the display module formed by the plurality of pixel modules 230, since each pixel module 230 adopts a separate package design, there is a problem of being greatly intruded by moisture. Particularly when the external seal is not tight or there is a moisture seal problem after the pixel module 230 needs to be replaced. To this, this application is through setting up at display module assembly four sides waterproof construction 100, gets rid of the inside steam of display panel through the exhaust mode, prevents that display panel from invading inefficacy because of steam, promotes display panel's life.

It should be noted that, the inventive concept of the present application may form a very large number of embodiments, but the application documents have limited space and cannot be listed one by one, so that on the premise of no conflict, the above-described embodiments or technical features may be arbitrarily combined to form new embodiments, and after the embodiments or technical features are combined, the original technical effects will be enhanced.

The foregoing is a further detailed description of the present application in connection with specific alternative embodiments, and it is not intended that the practice of the present application be limited to such descriptions. It should be understood that those skilled in the art to which the present application pertains may make several simple deductions or substitutions without departing from the spirit of the present application, and all such deductions or substitutions should be considered to be within the scope of the present application.

Claims

1. A waterproof structure of a display panel, the waterproof structure being provided at least at one side of the display panel, characterized in that the waterproof structure comprises:

the one-way conduction structure is provided with a one-way communication pipeline, and one end of the one-way communication pipeline is exposed;

the control structure is arranged between the unidirectional conduction structure and the display panel and comprises a control channel and a valve, one end of the control channel is connected with the other end of the unidirectional communication pipeline, and the other end of the control channel is connected with the inside of the display panel;

the water vapor detection structure is arranged between the unidirectional conduction structure and the control channel and is used for detecting the water vapor or oxygen concentration of one side of the unidirectional conduction structure, which is close to the control channel, and controlling the opening and closing of the valve according to the water vapor or oxygen concentration.

2. The waterproof structure of the display panel according to claim 1, wherein when the water vapor detection structure detects that the water vapor or oxygen concentration is higher than a first threshold value, the valve is controlled to be closed so that the control channel is not communicated with the unidirectional communication pipeline;

when the water vapor detection structure detects that the water vapor or oxygen concentration is lower than or equal to a first threshold value, the valve is controlled to be opened, so that the control channel is communicated with the one-way communication pipeline.

3. The waterproof structure of the display panel according to claim 1, wherein the one-way communication pipe includes a tesla valve passage, and a conduction direction of the tesla valve passage is a direction in which the control structure faces an outside of the display panel.

4. The waterproof structure of a display panel according to claim 1, wherein the display panel comprises a first substrate, a second substrate, and a pixel module disposed between the first substrate and the second substrate,

the waterproof structure is arranged between the first substrate and the second substrate and is arranged outside the pixel module;

a plurality of protruding structures are arranged on one side, close to the waterproof structure, of the first substrate or the second substrate; a plurality of groove structures are arranged on one side, close to the first substrate or the second substrate, of the waterproof structure; the plurality of protruding structures and the plurality of groove structures are arranged in a one-to-one correspondence mode, and adhesive is arranged between the protruding structures and the groove structures and used for fixing the protruding structures and the groove structures.

5. The waterproof structure of a display panel according to claim 4, wherein at least one receiving groove is provided at a side of the unidirectional conductive structure adjacent to the first substrate or the second substrate, and a desiccant or a sealant is provided in the receiving groove.

6. The waterproof structure of a display panel according to claim 1, wherein the control structure further comprises an electromagnet, a first spring, and a first magnet, the electromagnet and the first magnet being abutted by the first spring;

when the water vapor detection structure detects that the concentration of external water vapor or oxygen is lower than or equal to a first threshold value, the electromagnet is electrified, and the electromagnet and the first magnet are attracted to each other, so that the first magnet moves in a direction away from the valve, and the valve is in an open state;

when the water vapor detection structure detects that the concentration of external water vapor or oxygen is higher than a first threshold value, the electromagnet is powered off, and under the action of the first spring, the first magnet moves to one side close to the valve to control the valve to be in a closed state.

7. The waterproof structure of a display panel according to claim 6, wherein the valve includes a sealing rubber provided in the control passage;

when the electromagnet is attracted with the first magnet, the valve is in an open state, the sealing rubber is in a natural state, and the control channel is kept in a conducting state;

when the electromagnet is powered off, under the action of the first spring, the first magnet moves to one side far away from the electromagnet, the first magnet extrudes the sealing rubber, the sealing rubber deforms to block the control channel, and the control channel is kept in a closed state.

8. The waterproof structure of a display panel according to claim 6, wherein the control structure further includes a locking plate and a locking braking mechanism, the locking plate being controlled to move by the locking braking mechanism, the locking plate being movable until the locking plate is disposed between the electromagnet and the valve;

when the electromagnet is electrified, the first magnet moves in a direction away from the valve, and the locking plate moves between the first magnet and the valve and is limited to the first magnet.

9. The waterproof structure of the display panel according to claim 8, wherein the locking braking mechanism comprises a pressurizing structure and a second spring, the second spring is arranged between the pressurizing structure and the locking plate, and when the pressurizing structure works, the locking plate is driven to be separated from the position between the first magnet and the valve, and the second spring is compressed; when the pressurizing structure does not work, the second spring pushes the locking plate to enter between the first magnet and the valve.

10. A display device comprising a display panel and the waterproof structure of the display panel according to any one of claims 1 to 9.