CN212009225U - Transparent display module and electronic equipment - Google Patents
Transparent display module and electronic equipment Download PDFInfo
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- CN212009225U CN212009225U CN202020561123.3U CN202020561123U CN212009225U CN 212009225 U CN212009225 U CN 212009225U CN 202020561123 U CN202020561123 U CN 202020561123U CN 212009225 U CN212009225 U CN 212009225U
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- display panel
- guide plate
- light guide
- display module
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Abstract
The application provides a transparent display module assembly and electronic equipment, transparent display module assembly includes display panel, glass light guide plate and airtight structure, airtight structure sets up between glass light guide plate and display panel, form airtight cavity with display panel and glass light guide plate together, and atmospheric pressure in the airtight cavity is less than atmospheric pressure for display panel, glass light guide plate and airtight structure are in the same place fixed connection under the effect of atmospheric pressure. Therefore, an interval is formed between the display panel and the glass light guide plate through the closed structural part, so that the glass light guide plate is not completely attached to the display panel, and light leakage cannot be caused. Simultaneously, the combination to display panel, glass light guide plate and airtight structure is appeared based on the atmosphere compaction, need not spacing through marginal structure spare, consequently can not occupy the frame space, and the cavity is airtight simultaneously, also can not have the problem of dust, condensation into, does benefit to long-term the use.
Description
Technical Field
The application relates to the technical field of display, in particular to a transparent display module and electronic equipment.
Background
In implementing transparent display, a PMMA (Polymethyl methacrylate) or PC (polycarbonate) light guide plate is generally used in the transparent display module. However, the PMMA or PC light guide plate has the problems of large linear expansion coefficient, poor rigidity and easy deformation. If the glass light guide plate is adopted, the defects can be overcome, and the effect of large-size and narrow-frame design is achieved. But when the glass light guide plate is fixed in the transparent display module: firstly, the glass light guide plate cannot be directly and completely attached to the display panel, otherwise light leakage is caused; secondly, if spacing through the marginal structure spare, can occupy the frame space, and also easily advance dust, condensation between display panel and the glass light guide plate, be unfavorable for long-term the use.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a transparent display module and an electronic device, which are used for solving the problem of fixing a glass light guide plate in the display module.
The embodiment of the application provides a transparent display module assembly, include: a display panel; a glass light guide plate; the sealed structure is arranged between the glass light guide plate and the display panel, a sealed cavity is formed together with the display panel and the glass light guide plate, and the air pressure in the sealed cavity is smaller than the atmospheric pressure; the display panel, the glass light guide plate and the closed structural member are fixedly connected together under the action of the atmospheric pressure.
In the implementation structure, an interval is formed between the display panel and the glass light guide plate through the closed structural part, so that the glass light guide plate is not completely attached to the display panel, and light leakage cannot be caused. Simultaneously, the combination to display panel, glass light guide plate and airtight structure is appeared based on the atmosphere compaction, need not spacing through marginal structure spare, consequently can not occupy the frame space, and the cavity is airtight simultaneously, also can not have the problem of dust, condensation into, does benefit to long-term the use.
Furthermore, the glass light guide plate is provided with a first light-emitting surface and a second light-emitting surface which are oppositely arranged, and at least one light-in surface which is positioned between the first light-emitting surface and the second light-emitting surface; the first light emitting surface is a surface of the glass light guide plate, which forms the closed cavity together with the closed structural member and the display panel; the transparent display module further comprises a light source, and the light source faces the light incident surface.
In above-mentioned implementation structure, the light source setting is in the side of glass light guide plate to the mode of going into light through the side provides the backlight for display panel, makes in transparent display module assembly, can not influence the transparency of module because of the light source, thereby makes the transparent display module assembly transparency that this application embodiment provided better.
Further, the display panel is larger than the glass light guide plate in size; the display panel comprises an extension part, and the extension part extends outwards from the position, corresponding to the light incident surface, of the display panel; the light source is arranged below the extension part and faces the light incident surface.
In above-mentioned implementation structure, the display panel size is greater than the glass light guide plate size to display panel has the extension portion, and the extension portion outwards extends corresponding to the position of going into the plain noodles from display panel, and sets up the light source in extension portion below, can realize accomodating to the light source.
Furthermore, scattering dots are arranged on the second light-emitting surface.
In above-mentioned implementation structure, through setting up the scattering site for light takes place the scattering when hitting on the site, thereby forms even area source, thereby satisfies display panel's demonstration needs, promotes display effect.
Furthermore, a reflecting layer is arranged on the second light emitting surface.
In above-mentioned implementation structure, through set up the reflection stratum on the second goes out the plain noodles, can improve the reflection effect of light, improve the light derivation efficiency of first plain noodles for the light that provides display panel is more, thereby satisfies display panel's demonstration needs, promotes display effect.
Further, the reflecting layer is a semi-transparent and semi-reflective film.
In above-mentioned implementation structure, come as the reflection stratum through the semi-transparent semi-reflection membrane, efficiency and transparent display module's whole transparency are derived to the light that can balance first play plain noodles, the side light leak degree of scattering site on the control glass light guide plate to when realizing transparent demonstration, can provide more light to display panel, in order to satisfy display panel's demonstration needs, promote display effect.
Further, the sealing structure is frame glue.
In the implementation structure, the display panel is connected with the glass light guide plate through the frame glue, and the frame glue has certain viscosity, so that the structural stability between the display panel and the glass light guide plate can be further improved. Meanwhile, the frame glue has certain elasticity and is convenient to fill between the display panel and the glass light guide plate, so that the frame glue used as a sealing structural member can easily form a sealing cavity.
Further, the frame glue is cured black polyacrylic acid-based resin.
In the above implementation structure, by utilizing the light-tight characteristic of the black polyacrylic acid-based resin, the light leakage phenomenon which may exist on the light incident side can be effectively prevented.
Furthermore, the transparent display module also comprises a diffusion film; the diffusion membrane is arranged in the closed cavity.
In above-mentioned implementation structure, through set up the diffusion barrier in airtight cavity, can effectively eliminate between the first play plain noodles of glass light guide plate and the display panel because the Newton's ring that smooth surface contact inequality leads to improve display effect.
The embodiment of the application also provides electronic equipment which comprises a shell and any one of the transparent display modules; the transparent display module is arranged on the shell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a basic structure of a transparent display module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a transparent display module having a light source according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a transparent display module having a frame according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another transparent display module having a frame according to an embodiment of the present disclosure;
fig. 5 is an exploded view of a display panel, a glass light guide plate and an enclosed structure according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a transparent display module with a reflective layer according to an embodiment of the present disclosure.
Icon: 1-a display panel; 2-a glass light guide plate; 3-sealing the structural member; 4-sealing the cavity; 5-a light source; 6-frame; 7-a reflective layer; 11-extension.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
The first embodiment is as follows:
in order to solve the linear expansion coefficient that PMMA light guide plate or PC light guide plate exist in being applied to transparent display module assembly big, the rigidity is poor, the problem of easy deformation, this application embodiment provides a transparent display module assembly based on glass light guide plate. The transparent display module provided in the embodiments of the present application is described below with reference to fig. 1 to 6.
Referring to fig. 1, the transparent display module provided in the embodiment of the present application includes a display panel 1, a glass light guide plate 2, and a sealing structure 3. Wherein:
the sealing structure 3 is disposed between the display panel 1 and the glass light guide plate 2, so that the display panel 1 and the glass light guide plate 2 are not in direct contact. Meanwhile, the sealing structure 3 is in close contact with the display panel 1 and the glass light guide plate 2, thereby forming a sealed cavity 4 with the display panel 1 and the glass light guide plate 2.
In the embodiment of the present application, the air pressure in the sealed cavity 4 may be less than the atmospheric pressure, so that the sealed structure 3 may be fixedly connected to the display panel 1 and the glass light guide plate 2 by the action of the atmospheric pressure.
It should be understood that, in the embodiment of the present application, in order to make the air pressure inside the closed cavity 4 less than the atmospheric pressure, one possible implementation manner is: the bonding operation of the display panel 1, the sealing structure 3, and the glass light guide plate 2 can be performed in a vacuum environment. It should be noted that the vacuum environment described in the embodiments of the present application refers to a rough vacuum environment having an air pressure smaller than a normal atmospheric pressure, and is not an absolute vacuum environment completely without air.
In another possible implementation manner, the sealed cavity 4 may be vacuumized by a vacuum pump or the like.
It should be noted that, in the embodiment of the present application, the difference between the air pressure in the sealed cavity 4 and the atmospheric pressure is not suitable to be too small, because the difference between the air pressure in the sealed cavity 4 and the atmospheric pressure is too small, which may result in insufficient structural stability between the display panel 1 and the glass light guide plate 2. However, the difference between the air pressure in the sealed cavity 4 and the atmospheric pressure is not suitable to be too large, because when the difference between the air pressure in the sealed cavity 4 and the atmospheric pressure is too large, the display panel 1 or the glass light guide plate 2 may be crushed by the high air pressure difference.
Therefore, the air pressure in the sealed cavity 4 can be selected by an engineer according to an experimental test to obtain an air pressure range that can satisfy a sufficient bonding force but does not cause structural damage to the display panel 1 or the glass light guide plate 2. For example, the air pressure in the closed cavity 4 in the embodiment of the present application may be 0.6 to 0.9 times of atmospheric pressure. For example, the pressure in the closed cavity 4 may be 0.8 times atmospheric pressure.
In addition, in this application embodiment, airtight structure 3 can set up along the edge of glass light guide plate 2 to reserve sufficient airtight cavity 4 and supply the light to pass through, improve transparent display module's effective display area's size. The effective display area is an area on the display panel 1 where light reaches through the sealed cavity 4.
In addition, in consideration of structural stability, in the embodiment of the present application, the sealing structure 3 may also be implemented by using sealant. The structural stability between the display panel 1 and the glass light guide plate 2 is better by the viscosity of the frame glue and the effect of atmospheric pressure.
It should be understood that, when the bonding operation of the display panel 1, the sealed structure 3 and the glass light guide plate 2 is performed in a vacuum environment to realize that the air pressure in the sealed cavity 4 is less than the atmospheric pressure, the display panel 1, the sealed structure 3 and the glass light guide plate 2 can be always placed in the vacuum environment before the frame adhesive is solidified.
Of course, in the embodiment of the present application, other elastic frames may be used as the sealing structure 3 instead of the sealant. The elasticity of the elastic frame is utilized to enable the elastic frame to be tightly attached between the glass light guide plates 2 of the display panel 1 without a gap, and a closed cavity 4 is formed.
It is to be understood that the display panel 1 employed in the embodiment of the present application may be a liquid crystal panel. The liquid crystal panel itself is non-luminous and requires a light source 5 to assist in emitting light. Therefore, the transparent display module of the embodiment of the present application has a light source 5 therein.
In order to improve the transparency of the transparent display module, the embodiment of the present application can adopt a side light type design (i.e. the light source 5 is disposed at the side of the transparent display module), so as to reduce the influence of the light source 5 on the transparency of the module.
For convenience of description, in the embodiments of the present application, note: in the glass light guide plate 2, a surface forming the sealed cavity 4 together with the sealed structure 3 and the display panel 1 is a first light emitting surface, and a surface opposite to the first light emitting surface is a second light emitting surface.
At least one side surface of the plurality of side surfaces between the first light emitting surface and the second light emitting surface is used as a light incident surface. The light source 5 is disposed facing the light incident surface, so that light emitted from the light source 5 enters the glass light guide plate from the light incident surface and is reflected to the display panel 1.
In the embodiment of the present application, the first light emitting surface and the second light emitting surface of the glass light guide plate 2 may be disposed in parallel.
In addition, in the embodiment of the present application, the number of the light sources 5 may be greater than or equal to the number of the light incident surfaces of the glass light guide plate 2, so that at least one light source 5 may be disposed at a position corresponding to each light incident surface.
In order to obtain better display effect and lower power consumption, the Light source 5 in the embodiment of the present application may be an LED (Light-Emitting Diode) Light source.
In the embodiment of the present application, referring to fig. 2, the size of the display panel 1 may be set to be larger than that of the glass light guide plate 2, so that the display panel 1 has an extending portion 11, and the extending portion 11 extends outward from a position of the display panel 1 corresponding to the light incident surface. Further, the light source 5 may be provided below the extension 11, thereby functioning as a housing for the light source 5.
It should be noted that, since the light source 5 is disposed below the extending portion 11, the liquid crystal display panel will display when it receives light. Since the extending portion 11 is located outside the area corresponding to the sealed cavity 4 and belongs to the non-effective display area of the display panel 1, in order to ensure the display effect of the liquid crystal display panel, a corresponding light shielding layer may be disposed below the extending portion 11, so as to avoid the light source 5 from affecting the area where the extending portion 11 of the liquid crystal display panel is located.
In the embodiment of the present application, the light shielding layer may be implemented by using an opaque film.
In addition, in the embodiment of the present application, referring to fig. 3, the transparent display module may have a frame 6, and the frame 6 is used to accommodate the display panel 1, the glass light guide plate 2 and the light source 5.
It should be noted that, in this embodiment of the application, since the display panel 1 and the glass light guide plate 2 of the transparent display module are already relatively fixed, the frame 6 may not necessarily have to play a role of fixing the display panel 1 and the glass light guide plate 2, and therefore, an occupied area of the frame 6 on an outer side of the display panel 1 (i.e., a side away from the glass light guide plate 2) may be smaller, so as to avoid occupying an effective display area of the display panel 1.
In this embodiment, an area occupied by the frame 6 on the outer surface of the display panel 1 may not exceed a position on the outer surface of the display panel 1 corresponding to the sealing structure 3.
In the embodiment of the present application, the light source 5 may be fixed to the bezel 6. Of course, the light source 5 may be fixed to the glass light guide plate 2 or the display panel 1 by other structural members. As long as the light source 5 can be disposed opposite to the fixed light incident surface facing the glass light guide plate 2, the specific fixing mode of the light source 5 is not limited in the embodiment of the present application.
It should be understood that, in the embodiment of the present application, in addition to the light source 5 may be accommodated by the area enclosed by the extension 11 of the display panel 1 and the light incident surface of the glass light guide plate 2, the light source 5 may also be accommodated by forming corresponding cavities between the frame 6 and the display panel 1 and the glass light guide plate 2. See, for example, the structure shown in fig. 4.
In this case, the display panel 1 and the glass light guide plate 2 may have the same size and shape. For example, as shown in fig. 5, the display panel 1 and the glass light guide plate 2 may be circular arc sheets with the same size, and the sealing structure 3 is a circular arc ring made of an elastic material and with the same size as the display panel 1 and the glass light guide plate 2.
In the embodiment of the present application, when the sealing structure 3 is implemented by using the sealant, the sealant having an opaque property or a weak light transmittance can be selected for use, so as to effectively prevent the light leakage phenomenon possibly existing at one side close to the light incident surface. For example, a black polyacrylic acid-based resin may be used as the sealant. When the light guide plate is used, the black polyacrylic acid-based resin is uniformly coated between the display panel 1 and the glass light guide plate 2 when not cured to form a closed annular structure, then the closed annular structure is cured through ultraviolet irradiation, and after the black polyacrylic acid-based resin is cured, the display panel 1 and the glass light guide plate 2 are connected together through the solid sealed structural member 3.
In the embodiment of the present application, the extinction ratio of the black polyacrylic acid based resin may be greater than 1.5 to meet the need of preventing the light leakage situation.
In the embodiment of the present application, on the second light emitting surface of the glass light guide plate 2, scattering dots can be arranged, so that light is scattered when being emitted onto the dots through the scattering dots, thereby forming the uniform surface light source 5, so as to meet the display requirement of the display panel 1, avoid two rays appearing on the display panel 1, and improve the display effect. Meanwhile, the dots can reflect the light rays striking the dots, so that the light rays reflected to the display panel 1 are increased to a certain extent, the brightness of the light received by the display panel 1 is improved, and the display effect can also be improved to a certain extent.
In the embodiment of the present application, although the glass light guide plate 2 totally reflects the light and reflects the dots, a part of the light transmitted from the light source 5 can be reflected to the display panel 1, so that the display panel 1 performs the display. However, a large amount of light escapes from the second light emitting surface. For this reason, referring to fig. 6, in the embodiment of the present application, a reflective layer 7 may be disposed on the second light emitting surface, and the reflective layer 7 reflects light, so as to improve the light guiding efficiency of the first light emitting surface of the glass light guide plate 2, thereby reducing the number of light sources 5 required while providing the same light intensity for the display panel 1.
In order to balance the light guiding efficiency of the first light emitting surface and the requirement of the transparent display module on the overall transparency, in the embodiment of the present application, the transflective film may be used as the reflective layer 7, so that a certain transparency can be maintained while achieving a better light reflection.
Exemplarily, the transflective film may be a partially transmissive and partially reflective film with a reflectivity of 15% to 50%, so that the light guiding efficiency of the first light emitting surface can be improved while the transparent display module has better transparency.
In this application embodiment, can also set up the diffusion barrier in airtight cavity 4 to carry out the correction of diffusion angle through the light that the diffusion barrier transmitted to glass light guide plate 2, thereby increase the light radiation area, reduce luminance, make the degree of consistency of the light of giving display panel 1 better, avoid producing the condition that influences display effect such as newton's ring. The diffusion film may be implemented using, for example, PET (Polyethylene terephthalate), etc.
In addition, this application embodiment still provides an electronic equipment, and this electronic equipment can include casing and aforementioned transparent display module assembly to set up transparent display module assembly on the casing.
In a feasible implementation manner of the embodiment of the application, the housing of the electronic device may be a frame of the transparent display module.
In the embodiments of the present application, the electronic device includes, but is not limited to, a display case having a transparent display panel, a mobile terminal, and the like.
The transparent display module assembly and the electronic equipment that this application embodiment provided have formed the interval through airtight structure 3 between display panel 1 and the glass light guide plate 2 for glass light guide plate 2 does not laminate with display panel entirely, thereby can not arouse the light leak. Simultaneously, provide basic rigidity by glass light guide plate 2, present the combination to display panel 1, glass light guide plate 2 and airtight structure 3 based on the atmosphere compaction, it is spacing not need through marginal structure spare, consequently can not occupy the frame space, and the cavity is airtight simultaneously, also can not have the problem of advancing dust, condensation, does benefit to long-term the use.
In addition, through the transparent display module that this application embodiment provided, because it is spacing to need not marginal structure spare, can realize the design of narrow frame, can choose for use the lower display panel 1 of thickness and glass light guide plate 2 to realize simultaneously, for example can choose for use the liquid crystal display panel that thickness is 1.5mm and the glass light guide plate that thickness is 2mm to realize, can effectively realize the frivolous design to display module to for electronic equipment's frivolousization provides basic support.
In the embodiments provided in the present application, it should be understood that the disclosed structure may be implemented in other ways. The structural embodiments described above are merely illustrative.
Moreover, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a transparent display module assembly which characterized in that includes:
a display panel;
a glass light guide plate;
the sealed structure is arranged between the glass light guide plate and the display panel, a sealed cavity is formed together with the display panel and the glass light guide plate, and the air pressure in the sealed cavity is smaller than the atmospheric pressure;
the display panel, the glass light guide plate and the closed structural member are fixedly connected together under the action of the atmospheric pressure.
2. The transparent display module as claimed in claim 1, wherein the glass light guide plate has a first light emitting surface and a second light emitting surface disposed opposite to each other, and at least one light incident surface located between the first light emitting surface and the second light emitting surface; the first light emitting surface is a surface of the glass light guide plate, which forms the closed cavity together with the closed structural member and the display panel;
the transparent display module further comprises a light source, and the light source faces the light incident surface.
3. The transparent display module of claim 2, wherein the display panel is larger in size than the glass light guide plate; the display panel comprises an extension part, and the extension part extends outwards from the position, corresponding to the light incident surface, of the display panel;
the light source is arranged below the extension part and faces the light incident surface.
4. The transparent display module of claim 2, wherein the second light-exiting surface is provided with scattering dots.
5. The transparent display module of claim 2, wherein a reflective layer is disposed on the second light-emitting surface.
6. The transparent display module of claim 5, wherein the reflective layer is a transflective film.
7. The transparent display module of any one of claims 1-6, wherein the sealing structure is a sealant.
8. The transparent display module of claim 7, wherein the sealant is a cured black polyacrylic acid based resin.
9. The transparent display module of any one of claims 1-6, further comprising a diffuser film; the diffusion membrane is arranged in the closed cavity.
10. An electronic device, comprising a housing, and the transparent display module according to any one of claims 1-9;
the transparent display module is arranged on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561123.3U CN212009225U (en) | 2020-04-15 | 2020-04-15 | Transparent display module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561123.3U CN212009225U (en) | 2020-04-15 | 2020-04-15 | Transparent display module and electronic equipment |
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| CN212009225U true CN212009225U (en) | 2020-11-24 |
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| CN202020561123.3U Active CN212009225U (en) | 2020-04-15 | 2020-04-15 | Transparent display module and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904473A (en) * | 2021-01-28 | 2021-06-04 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and head-mounted display device |
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2020
- 2020-04-15 CN CN202020561123.3U patent/CN212009225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904473A (en) * | 2021-01-28 | 2021-06-04 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and head-mounted display device |
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