CN116449611A - Display panel, display device and method for preventing water vapor of display panel - Google Patents
Display panel, display device and method for preventing water vapor of display panel Download PDFInfo
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- CN116449611A CN116449611A CN202310481673.2A CN202310481673A CN116449611A CN 116449611 A CN116449611 A CN 116449611A CN 202310481673 A CN202310481673 A CN 202310481673A CN 116449611 A CN116449611 A CN 116449611A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 80
- 239000000758 substrate Substances 0.000 claims abstract description 72
- 239000000565 sealant Substances 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 239000004973 liquid crystal related substance Substances 0.000 claims description 11
- 229910052582 BN Inorganic materials 0.000 claims description 8
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 137
- 239000000463 material Substances 0.000 description 7
- 239000012466 permeate Substances 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 6
- 239000002086 nanomaterial Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical group [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002106 nanomesh Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The application discloses a display panel, a display device and a method for preventing water vapor of the display panel, and relates to the field of display, wherein the method comprises a first substrate, a second substrate and frame glue, and the second substrate is arranged opposite to the first substrate; the frame glue is arranged between the first substrate and the second substrate and is positioned in a non-display area of the display panel, the display panel further comprises a water-proof structure, and the water-proof structure is arranged on one side of the frame glue away from the display area; the waterproof structure comprises a waterproof layer, an upper electrode and a lower electrode, wherein the upper electrode is arranged on one side of the first substrate, which is close to the second substrate, the lower electrode is arranged on one side of the second substrate, which is close to the first substrate, and the waterproof layer is arranged between the upper electrode and the lower electrode; when the upper electrode and the lower electrode are electrified, the water-resisting layer absorbs water vapor at the frame glue and then discharges the water vapor; this application prevents steam erosion through above design, guarantees the display effect.
Description
Technical Field
The present disclosure relates to the field of display, and more particularly, to a display panel, a display device, and a method for preventing vapor on the display panel.
Background
Because the design of the display frame is increasingly narrowed, the distance between the non-display area wiring or the switching hole of the display panel and the edge of the frame glue is increasingly smaller, and because the water vapor molecules have certain fluidity, after the upper substrate and the lower substrate are opposite to the box, the water vapor molecules can diffuse through the frame glue, the water vapor can enter the interior of the panel through the gap between the panel and the shell, the service life of the device can be seriously influenced after the water vapor enters the device, the problems of bubbles, dark spots, corrosion through holes and the like can occur, and poor signals or abnormal display are caused, so that the display effect is influenced.
In the prior art, a waterproof structure is arranged on one side of the frame glue and used for directly blocking water vapor from entering, gaps exist between the waterproof layer and the upper and lower substrates, partial water vapor permeates through the gaps to enter the frame glue, the viscosity between the frame glue and the upper and lower substrates can be influenced, and the water vapor at the frame glue enters a display area of the display panel through the gaps between the frame glue and the upper and lower substrates.
Disclosure of Invention
The purpose of the application is to provide a display panel, a display device and a method for preventing water vapor of the display panel, wherein the method is used for preventing water vapor erosion and guaranteeing display effect.
The application discloses a display panel, which comprises a first substrate, a second substrate and frame glue, wherein the second substrate is arranged opposite to the first substrate; the display panel further comprises a water-proof structure which is arranged on one side of the frame glue far away from the display area;
the waterproof structure comprises a waterproof layer, an upper electrode and a lower electrode, wherein the upper electrode is arranged on one side of the first substrate, which is close to the second substrate, the lower electrode is arranged on one side of the second substrate, which is close to the first substrate, and the waterproof layer is arranged between the upper electrode and the lower electrode; when the upper electrode and the lower electrode are electrified, the water-resisting layer absorbs water vapor close to the frame glue.
Optionally, the display panel further includes a sensor, and the sensor is disposed between the frame glue and the waterproof structure; when the sensor detects water vapor, the upper electrode and the lower electrode are controlled to be electrified, and the water-resisting layer is in a water absorption state to absorb the water vapor; after the upper electrode and the lower electrode are electrified and powered off, the water-resisting layer is switched to a waterproof state, and water vapor is discharged away from one side of the frame glue.
Optionally, the water-proof layer includes first water-proof layer, second water-proof layer, the upper electrode includes first upper electrode and second upper electrode, the lower electrode includes first bottom electrode and second bottom electrode, first upper electrode and second upper electrode set up respectively first base plate is close to one side of second base plate, first bottom electrode with second bottom electrode set up respectively the second base plate is close to one side of first base plate, first water-proof layer set up first upper electrode with between the first bottom electrode, with first upper electrode first bottom electrode fixed connection, the second water-proof layer set up second upper electrode with between the second bottom electrode, with second upper electrode second bottom electrode fixed connection.
Optionally, the first water-resistant layer and the second water-resistant layer are both boron nitride nanonets.
Optionally, along the coating direction of frame gum, the first water-proof layer is the wave line setting, respectively with second water-proof layer and frame gum part paste the setting mutually.
Optionally, the thickness of the first water-resistant layer and the second water-resistant layer is 0.1-0.3 nanometers.
Optionally, the display panel further includes a liquid crystal layer and a second water-proof structure, the liquid crystal layer is disposed between the first substrate and the second substrate, and the second water-proof structure is disposed between the frame glue and the liquid crystal layer.
The application also discloses a display device, including display panel and backlight unit as described above, display panel sets up one side of backlight unit, backlight unit is for display panel provides the backlight.
The application also discloses a method for preventing water vapor of the display panel, which is applied to the display panel, and comprises the following steps:
if no water vapor exists between the frame glue and the water-resisting layer, the upper electrode and the lower electrode are not started to be electrified;
if water vapor exists between the frame glue and the water-resisting layer, the upper electrode and the lower electrode are started to be electrified, and the water-resisting layer absorbs the water vapor close to the frame glue; and
and the upper electrode and the lower electrode are powered off, and the water-resisting layer discharges absorbed water vapor.
Optionally, if there is water vapor between the sealant and the water-proof layer, the upper electrode and the lower electrode are started to be electrified, the water-proof layer absorbs the water vapor close to the sealant, the upper electrode and the lower electrode are powered off, and the step of exhausting the absorbed water vapor by the water-proof layer includes the steps of:
detecting the water vapor condition between the frame glue and the water-resisting layer by using a sensor;
if water vapor exists between the frame glue and the water-resisting layer, the first upper electrode and the first lower electrode are started to be electrified, and the first water-resisting layer is switched to a water absorption state to absorb the water vapor;
the first upper electrode and the first lower electrode are powered off, and the first water-resisting layer is switched into a waterproof state to discharge water vapor;
starting a second upper electrode and a second lower electrode to electrify, switching the second water-resisting layer into a water absorption state, and absorbing water vapor discharged from the first water-resisting layer;
the second upper electrode and the second lower electrode are powered off, the second water-resisting layer is switched into a waterproof state, and the water vapor is discharged out of the display panel;
and circulating the steps until the water vapor in the display panel is completely discharged.
Compared with the scheme that a waterproof structure is arranged on one side of the frame glue and used for directly blocking water vapor from entering in the prior art, the waterproof structure comprises a waterproof layer, an upper electrode and a lower electrode, wherein the upper electrode is arranged on one side of the first substrate, which is close to the second substrate, the lower electrode is arranged on one side of the second substrate, which is close to the first substrate, and the waterproof layer is arranged between the upper electrode and the lower electrode; when the upper electrode and the lower electrode are electrified, the water-resisting layer absorbs water vapor at the frame glue and discharges the water vapor, so that the situation that the viscosity of the frame glue is affected due to the existence of the water vapor at the frame glue can be avoided, the water vapor is prevented from further penetrating into the display area of the display panel after the frame glue is further penetrated, each device is affected, the problems of bubbles, dark spots, corrosion of through holes and the like are avoided, and the display effect of the display panel is ensured.
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 block diagram schematic of a display device of the present application;
FIG. 2 is a schematic cross-sectional structure of a display panel of the present application;
fig. 3 is a schematic top view of a display panel according to a first embodiment of the present application;
FIG. 4 is a flowchart showing a method for preventing moisture on a display panel according to a first embodiment of the present disclosure;
FIG. 5 is a detailed flowchart of step S2 in FIG. 4;
fig. 6 is a schematic cross-sectional structure of a display panel according to a second embodiment of the present application;
fig. 7 is a schematic top view of a display panel according to a third embodiment of the present disclosure.
10, a display device; 100. a display panel; 110. a first substrate; 120. a second substrate; 130. frame glue; 200. a water-blocking structure; 210. a water-resistant layer; 211. a first water-blocking layer; 212. a second water-resistant layer; 213. a third water-resistant layer; 220. an upper electrode; 221. a first upper electrode; 222. a second upper electrode; 230. a lower electrode; 231. a first lower electrode; 232. a second lower electrode; 300. a sensor; 400. a liquid crystal layer; 500. and a backlight module.
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.
Fig. 1 is a schematic block diagram of a display device of the present application, and as shown in fig. 1, the present application discloses a display device 10, including a display panel 100 and a backlight module 500, wherein the display panel 100 is disposed on one side of the backlight module 500, and the backlight module 500 provides a backlight for the display panel 100.
Specifically, fig. 2 is a schematic cross-sectional structure of the display panel of the present application, as shown in fig. 2, the display panel 100 includes a first substrate 110, a second substrate 120, and a frame glue 130, where the second substrate 120 is disposed opposite to the first substrate 110; the display panel 100 further comprises a water-proof structure 200, wherein the water-proof structure 200 is arranged at one side of the frame glue 130 far away from the display area, and the side is arranged between the first substrate 110 and the second substrate 120 and is positioned at a non-display area of the display panel 100;
wherein the water-blocking structure 200 includes a water-blocking layer 210, an upper electrode 220, and a lower electrode 230, the upper electrode 220 is disposed on one side of the first substrate 110 close to the second substrate 120, the lower electrode 230 is disposed on one side of the second substrate 120 close to the first substrate 110, and the water-blocking layer 210 is disposed between the upper electrode 220 and the lower electrode 230; when the upper electrode 220 and the lower electrode 230 are energized, the water-resistant layer 210 absorbs water vapor near the sealant 130.
Compared to the prior art in which the waterproof structure 200 is disposed on one side of the frame glue 130 for directly blocking the entry of moisture, the waterproof structure 200 of the present application includes a waterproof layer 210, an upper electrode 220 and a lower electrode 230, the upper electrode 220 is disposed on one side of the first substrate 110 close to the second substrate 120, the lower electrode 230 is disposed on one side of the second substrate 120 close to the first substrate 110, and the waterproof layer 210 is disposed between the upper electrode 220 and the lower electrode 230; when the upper electrode 220 and the lower electrode 230 are electrified, the water-resistant layer 210 absorbs the water vapor at the frame glue 130 and discharges the water vapor, so that the problem that the viscosity of the frame glue 130 is affected by the water vapor at the frame glue 130, and the water vapor further permeates into the display area of the display panel 100 after the frame glue 130, so that each device is affected, the problems of bubbles, dark spots, corrosion via holes and the like are seriously caused, and the display effect of the display panel 100 is ensured.
Wherein, the upper and lower electrodes 230 are connected to an external driving IC, and the water-blocking layer 210 is controlled by signals supplied from the timing control electrodes. For the design of the waterproof structure 200, reference is made to the following drawings and specific embodiments.
Embodiment one:
as shown in fig. 1, since the sealant 130 is located at the outermost side of the non-display area of the display panel 100, if moisture invades, the moisture first reaches the sealant 130, and the waterproof structure 200 is disposed at the side of the sealant 130 away from the display area, which is equivalent to disposing a line of defense at the outer side of the sealant 130, so that the moisture is not easy to invade the sealant 130.
Whether water vapor exists or not can be sensed by the sensor 300, i.e. the sensor 300 can be arranged between the frame glue 130 and the water-proof structure 200; whether water vapor permeates into the frame glue 130 is sensed by the sensor 300.
When the sensor 300 detects water vapor, the upper electrode 220 and the lower electrode 230 are controlled to be electrified, and the water-resistant layer 210 is in a water absorption state to absorb the water vapor; at this time, the upper electrode 220 and the lower electrode 230 are powered on and off, the water-proof layer 210 is switched to a waterproof state, and the water vapor is discharged to a side far away from the sealant 130. The waterproof layer 210 is in a waterproof state when not electrified, so that water vapor outside the frame glue can be isolated, and the water vapor is prevented from invading the frame glue.
The water-proof layer 210 is a boron nitride nano-network, which is a novel nano-material, and the material is a honeycomb boron nitride (also called as "white graphene") nano-network constructed on a rhodium atom matrix, and can realize free switching between water-proof and water-absorbing states by applying voltage change (without power-up/power-up). In particular, the material can be modified by modifying the nanoscale structure, thereby modifying the static resistance (stiction) of the atomic surface. One with a high level of tackiness allows water to adhere to it (i.e., in a water-absorbing state), and one with a low level of tackiness allows liquid to run off directly (i.e., in a water-repellent state).
When voltage is applied to the material, the nano-net structure is flattened, the contact angle between the water drops and the material is greatly changed, and water molecules penetrate through the nano-net. This process is because the applied current causes hydrogen atoms to accumulate between the boron nitride and rhodium elemental layers, which makes the surface distribution of the molecules uniform and flattens the nanoweb structure.
Therefore, when the novel material is disposed on one side of the sealant 130 away from the display area, the upper electrode 220 and the lower electrode 230 are energized to apply a voltage, so that the water-proof layer 210 is in a water-absorbing state to absorb the existing water vapor, and after the power is off, the water vapor absorbed originally is directly discharged, and the water-proof layer 210 is in a water-proof state to block the external water vapor.
Specifically, the water-proof layer 210 includes a first water-proof layer 211 and a second water-proof layer 212, the upper electrode 220 includes a first upper electrode 221 and a second upper electrode 222, the lower electrode 230 includes a first lower electrode 231 and a second lower electrode 232, the first upper electrode 221 and the second upper electrode 222 are respectively disposed on one side of the first substrate 110 near the second substrate 120, the first lower electrode 231 and the second lower electrode 232 are respectively disposed on one side of the second substrate 120 near the first substrate 110, the first water-proof layer 211 is disposed between the first upper electrode 221 and the first lower electrode 231 and fixedly connected with the first upper electrode 221 and the first lower electrode 231, and the second water-proof layer 212 is disposed between the second upper electrode 222 and the second lower electrode 232 and fixedly connected with the second upper electrode 222 and the second lower electrode 232. The first water-resistant layer 211 and the second water-resistant layer 212 are both boron nitride nanonets.
At the beginning, no voltage is applied to the two layers of nano materials, so that the two layers of nano materials are in a waterproof state, the double layers of nano materials have the effect of double protection, and water vapor is prevented from entering. When the sensor 300 detects that moisture enters between the frame glue 130 and the first water-proof layer 211, the first upper electrode 221 and the first lower electrode 231 are controlled to be electrified, the water-proof structure 200 is in a water absorption state, and moisture between the frame glue 130 and the first layer of nano material is absorbed;
then the power is cut off, the first water-proof layer 211 becomes a waterproof state, the water vapor is discharged to the second water-proof layer 212, meanwhile, the second water-proof layer 212 is electrified to absorb the water vapor discharged by the first water-proof layer 211, the second water-proof layer 212 is powered off after absorbing the water vapor to become a waterproof state, the water vapor is discharged, and the operation is circulated until the water vapor at the frame glue 130 is discharged cleanly. And after the water vapor at the frame glue 130 is removed completely, the second water-proof layer 212 and the first water-proof layer 211 are powered off, and all the water-proof layers are restored to the waterproof state, so that the discharged water vapor is not easy to permeate through the water-proof layer 210 in the double-layer waterproof state to enter the frame glue 130, and the problem of preventing the water vapor is better solved.
And the frame glue 130 and the first water-proof layer 211 have a gap therebetween, and can also play a role of buffering water vapor.
As shown in fig. 3, the first water-proof layer 211 and the second water-proof layer 212 are disposed in a close manner, that is, the first water-proof layer 211 and the second water-proof layer 212 are respectively wound in a circle along the coating direction of the frame glue 130, and one side of the first water-proof layer 211 close to the second water-proof layer 212 and one side of the second water-proof layer 212 close to the first water-proof layer 211 are closely attached to each other, at this time, no matter which part of the frame glue 130 has water vapor, the water vapor can be quickly absorbed by the first water-proof layer 211 and then discharged to one side far away from the frame glue 130 through the second water-proof layer 212, and even if different positions of the frame glue 130 have water vapor at the same time, the water vapor can be quickly absorbed by the first water-proof layer 211 and then discharged to one side far away from the frame glue 130 through the second water-proof layer 212.
The thickness of the first water-proof layer 211 and the second water-proof layer 212 is 0.1-0.3 nm, and by adopting the thickness design, the volume of the round design is relatively smaller, so that too many positions of a non-display area are not occupied, and the area of the display panel 100 is ensured; the height of the first substrate 110 along the vertical direction of the second substrate 120 can be adjusted according to the specification of the display panel 100 and the upper and lower electrodes 230.
Of course, the water-resistant layer 210 may be a single layer of boron nitride nano-mesh, and the upper and lower electrodes 230 may be energized to absorb the water vapor, then de-energized to discharge the water vapor to the outside. The water blocking layer 210 may be made of another material as long as the material can be in a water-absorbing state when energized and in a water-blocking state when not energized.
As shown in fig. 4, the embodiment also discloses a method for preventing water vapor of a display panel, which is applied to the display panel described above, and includes the steps of:
s1: a sensor detects the water vapor condition between the frame glue and the water-resisting layer;
s2: if water vapor exists between the frame glue and the water-resisting layer, starting the upper electrode and the lower electrode to electrify, and absorbing the water vapor at the frame glue by the water-resisting layer;
s3: powering off the upper electrode and the lower electrode, and discharging the absorbed water vapor by the water-resisting layer;
s4: if no water vapor exists, the upper electrode and the lower electrode are not started to be electrified.
In the step of starting the upper electrode 220 and the lower electrode 230 to be electrified when water vapor exists, and discharging the water vapor in the display panel 100 after the water-blocking layer 210 absorbs the water vapor, the voltages of the upper electrode 220 and the lower electrode 230 are both 0.45V, and the water-blocking layer 210 can be switched to a water-absorbing state by applying the voltages, so that the water vapor can be absorbed, and the water vapor near the frame glue 130 cannot continuously invade towards the direction of the frame glue 130 near the display area.
Specifically, as shown in fig. 5, if there is water vapor between the sealant and the water-proof layer, the upper electrode and the lower electrode are started to be electrified, the water-proof layer is close to the moisture absorbing step of the sealant and the upper electrode and the lower electrode are powered off, and the step of discharging the absorbed water vapor by the water-proof layer includes:
s21: starting the first upper electrode and the first lower electrode to electrify, and switching the first water-resisting layer into a water absorption state to absorb water vapor;
s22: the first upper electrode and the first lower electrode are powered off, and the first water-resisting layer is switched into a waterproof state to discharge water vapor;
s23: starting a second upper electrode and a second lower electrode to electrify, switching the second water-resisting layer into a water absorption state, and absorbing water vapor discharged from the first water-resisting layer;
s24: the second upper electrode and the second lower electrode are powered off, the second water-resisting layer is switched into a waterproof state, and the water vapor is discharged to one side far away from the frame glue;
s25: and circulating the steps until the water vapor at the frame glue is removed.
The first upper electrode 221 and the first lower electrode 231 are powered off, and the second upper electrode 222 and the second lower electrode 232 are powered on, and the first upper electrode 221 and the first lower electrode 231 are powered on, i.e. the first water-proof layer 211 and the second water-proof layer 212 are in an alternate state, so that the water vapor existing at the frame glue 130 is absorbed and then discharged.
Embodiment two:
fig. 6 is a schematic cross-sectional structure of a display panel according to a second embodiment of the present application, as shown in fig. 6, in which, as a second embodiment of the present application, the display panel 100 further includes a second waterproof structure 200 and a liquid crystal layer 400, the liquid crystal layer 400 is disposed between the first substrate 110 and the second substrate 120, and the second waterproof structure 200 is disposed between the sealant 130 and the liquid crystal layer 400. The second water-proof structure 200 may be a third water-proof layer 213 of a boron nitride nano-network, because the frame glue 130 is used for adhering and fixing the first substrate 110 and the second substrate 120, that is, there may be gaps on the adhering surface of the frame glue 130 and the first substrate 110 or on the adhering surface of the frame glue 130 and the second substrate 120, if the water vapor entering the frame glue 130 is not discharged yet, the water vapor will penetrate through the gaps and enter the liquid crystal layer 400, and the display effect of the display panel 100 will be affected, therefore, the third water-proof layer 213 is disposed between the liquid crystal layer 400 and the frame glue 130, and is used as a reinforced barrier line for directly blocking the water vapor from entering the display area after penetrating through the frame glue 130, and is matched with the first water-proof layer 211 and the second water-proof layer 212, so as to further block the invasion of the water vapor.
Embodiment III:
fig. 7 is a schematic top view of a display panel according to a third embodiment of the present application, as shown in fig. 7, in this embodiment, as a difference from the first embodiment, the top view of the display panel 100 is that the first water-proof layer 211 is arranged in a wavy line, and is respectively arranged in a manner of being partially attached to the second water-proof layer 212 and the frame glue 130. At this time, the position that does not paste between the first water-proof layer 211 and the second water-proof layer 212 forms first hollow structure, the position that does not paste between the first water-proof layer 211 and the frame glue 130 forms second hollow structure, and first hollow structure can be used to store the steam that permeates from the second water-proof layer 212, and first water-proof layer 211 is waterproof state under the condition that does not switch on, make steam stop in first hollow structure after permeating from the second water-proof layer 212, be difficult to continue to permeate into second hollow structure through first water-proof layer 211, if steam in the first hollow structure continues to permeate into second hollow structure, also can stop the buffering in second hollow structure department, and when steam has entered into second hollow structure, sensor 300 detects steam invasion this moment, then start first upper electrode 221 and first lower electrode 231 circular telegram, and no matter in which second hollow structure exists at this moment, can all be by the first water-proof layer 211 absorption of being the state to first hollow structure internal discharge, and then start second upper electrode 222 again, second water-proof layer 232 is again, and second water-proof layer 212 is then discharged after switching on, and second water-proof layer 212 is discharged, then water-proof layer 212 is recovered after the second water-proof layer is switched off to the second water-proof state, and water-proof layer 212 is discharged outside.
Of course, in this embodiment, the sensor 300 may also be disposed in the second hollow structure, when water vapor invades into the second hollow structure, the second upper electrode 222 and the second lower electrode 232 may be directly started to be electrified, the second water-resistant layer 212 is switched to be in a water-absorbing state, and the water vapor in the second hollow structure is directly absorbed and then discharged, so that the blocking efficiency of the water vapor is accelerated. It should be noted that, the limitation of each step in the present solution is not to be considered as limiting the sequence of steps on the premise of not affecting the implementation of the specific solution, and the steps written in the previous step may be executed before, may be executed after, or may even be executed simultaneously, so long as the implementation of the present solution is possible, all should be considered as falling within the protection scope of the present application.
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 (10)
1. A display panel, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate;
the frame glue is arranged between the first substrate and the second substrate and is positioned in a non-display area of the display panel, and the frame glue is characterized in that the display panel further comprises a water-proof structure, and the water-proof structure is arranged on one side, far away from the display area, of the frame glue;
the waterproof structure comprises a waterproof layer, an upper electrode and a lower electrode, wherein the upper electrode is arranged on one side of the first substrate, which is close to the second substrate, the lower electrode is arranged on one side of the second substrate, which is close to the first substrate, and the waterproof layer is arranged between the upper electrode and the lower electrode;
when the upper electrode and the lower electrode are electrified, the water-resisting layer absorbs water vapor close to the frame glue.
2. The display panel of claim 1, further comprising a sensor disposed between the frame glue and the water-barrier structure;
when the sensor detects water vapor, the upper electrode and the lower electrode are controlled to be electrified, and the water-resisting layer is in a water absorption state to absorb the water vapor;
after the upper electrode and the lower electrode are electrified and powered off, the water-resisting layer is switched to a waterproof state, and water vapor is discharged to one side far away from the frame glue.
3. The display panel of claim 1, wherein the water-resistant layer comprises a first water-resistant layer and a second water-resistant layer, the upper electrode comprises a first upper electrode and a second upper electrode, the lower electrode comprises a first lower electrode and a second lower electrode, the first upper electrode and the second upper electrode are respectively arranged on one side of the first substrate close to the second substrate, the first lower electrode and the second lower electrode are respectively arranged on one side of the second substrate close to the first substrate, the first water-resistant layer is arranged between the first upper electrode and the first lower electrode and fixedly connected with the first upper electrode and the first lower electrode, and the second water-resistant layer is arranged between the second upper electrode and the second lower electrode and fixedly connected with the second upper electrode and the second lower electrode.
4. The display panel of claim 3, wherein the first and second water-resistant layers are each boron nitride nanonets.
5. The display panel according to claim 3, wherein the first water-resistant layer is arranged in a wavy line along a coating direction of the sealant, and the first water-resistant layer is respectively arranged in a manner of being adhered to the second water-resistant layer and the sealant.
6. The display panel of claim 3, wherein the first and second water-resistant layers each have a thickness of 0.1-0.3 nanometers.
7. The display panel of claim 1, further comprising a liquid crystal layer disposed between the first substrate and the second substrate and a second water-barrier structure disposed between the frame glue and the liquid crystal layer.
8. A display device comprising a display panel according to any one of claims 1-7 and a backlight module, wherein the display panel is arranged on one side of the backlight module, and the backlight module provides a backlight for the display panel.
9. A method for preventing moisture of a display panel, applied to the display panel according to any one of claims 1 to 7, comprising the steps of:
if no water vapor exists between the frame glue and the water-resisting layer, the upper electrode and the lower electrode are not started to be electrified;
if water vapor exists between the frame glue and the water-resisting layer, the upper electrode and the lower electrode are started to be electrified, and the water-resisting layer absorbs the water vapor close to the frame glue; and
and the upper electrode and the lower electrode are powered off, and the water-resisting layer discharges absorbed water vapor.
10. The method of claim 9, wherein if there is moisture between the sealant and the water-blocking layer, the upper electrode and the lower electrode are activated to be energized, the water-blocking layer absorbs moisture near the sealant, the upper electrode and the lower electrode are deactivated, and the water-blocking layer discharges the absorbed moisture, the method comprising the steps of:
detecting the water vapor condition between the frame glue and the water-resisting layer by using a sensor;
if water vapor exists between the frame glue and the water-resisting layer, the first upper electrode and the first lower electrode are started to be electrified, and the first water-resisting layer is switched to a water absorption state to absorb the water vapor;
the first upper electrode and the first lower electrode are powered off, and the first water-resistant layer is switched into a waterproof state to discharge water vapor;
starting the second upper electrode and the second lower electrode to electrify, switching the second water-resisting layer into a water absorption state, and absorbing water vapor discharged from the first water-resisting layer;
the second upper electrode and the second lower electrode are powered off, the second water-resisting layer is switched into a waterproof state, and the water vapor is discharged out of one side far away from the frame glue; and
and circulating the steps until the water vapor close to the frame glue is removed completely.
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