CN111458937A - Display module and electronic equipment - Google Patents
Display module and electronic equipment Download PDFInfo
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- CN111458937A CN111458937A CN202010348314.6A CN202010348314A CN111458937A CN 111458937 A CN111458937 A CN 111458937A CN 202010348314 A CN202010348314 A CN 202010348314A CN 111458937 A CN111458937 A CN 111458937A
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- guide plate
- light guide
- light
- display module
- display screen
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The application provides a display module assembly and electronic equipment, display module assembly includes: the display screen, have relative light guide plate, annular sealing member and backlight source of going out the plain noodles and income plain noodles. The annular sealing element is arranged between the light emitting surfaces of the display screen and the light guide plate, and forms a closed cavity together with the light emitting surfaces of the display screen and the light guide plate, and the closed cavity is in a negative pressure state. The backlight light source faces the light incident surface of the light guide plate, is relatively fixed with the light incident surface of the light guide plate, and is spaced from the light incident surface by a preset light mixing distance. Like this, the display screen can not need the frame to protect and fix, and is more frivolous, and display module assembly sees the extremely narrow invalid area except that the display screen from openly simultaneously, can not see the existence of other frame structures, and visual effect is good, and the effective display area who can effectively improve medium and large-size display module assembly accounts for than.
Description
Technical Field
The application relates to the technical field of display, in particular to a display module and electronic equipment.
Background
The display module has an invalid display area and a frame when being watched from the front due to the requirement of structurally supporting and hiding circuits and elements, and the occupation ratio of the effective display area is influenced. At present, the small-size display module applied to a mobile phone and the like can be close to a full screen, but in the aspect of medium and large sizes, the limit of the structural strength of the display module can not realize the point, and the main reason comprises the following two aspects:
firstly, display module group itself needs metal or plastics frame to protect and fix, secondly there are multiple combined material in the display module group, need reserve certain space allowance in the frame when the structure assembly, otherwise arouse display module group deformation or inefficacy because of reasons such as thermal expansion, moisture absorption very easily. These two aspects have resulted in traditional display module assembly, and the frame needs to occupy great area to effective display area ratio has been influenced.
Disclosure of Invention
An object of the present invention is to provide a display module and an electronic device, which are used to increase the effective display area ratio of a medium-sized display module.
The embodiment of the application provides a display module assembly, include: a display screen; the light guide plate is provided with a light emergent surface and a light incident surface which are opposite; the annular sealing piece is arranged between the display screen and the light emitting surface of the light guide plate, forms a closed cavity together with the display screen and the light emitting surface of the light guide plate, and is in a negative pressure state; the backlight source faces the light incident surface of the light guide plate, is relatively fixed with the light incident surface of the light guide plate, and has a preset light mixing distance with the light incident surface.
In the above implementation structure, a sealed chamber is formed between the display screen and the light guide plate through an annular sealing member, and the sealed chamber is in a negative pressure state. Thus, the display screen, the light guide plate and the annular sealing member can be combined based on the atmospheric pressure, so that the display screen and the light guide plate can be protected and fixed without a frame. This just makes the display module assembly that this application embodiment provided more frivolous, and the display module assembly sees except the extremely narrow invalid area of display screen from the front simultaneously, can not see the existence of other frame structures, and visual effect is good, can effectively improve the effective display area ratio of medium and large-size display module assembly.
Further, the display module assembly still includes: and the optical film is arranged in the closed cavity, and the side surface of the optical film is in contact with the annular sealing element.
Further, the optical film is a composite optical film; the composite optical film comprises a plurality of single optical films which are arranged in a stacked mode, or comprises a plurality of single optical films which are arranged in a stacked mode, and two adjacent single optical films are bonded through transparent optical cement.
In the implementation structure, the single optical films of the corresponding types can be adopted to form the composite optical film according to actual display requirements, so that the display requirements of the display module are met, and the display module has a good display effect.
Further, the single optical film is a polarization brightness enhancement film, a prism sheet, a diffusion sheet or a quantum dot film.
Further, the optical film is respectively contacted with the light incident surface of the light guide plate and the display screen.
In the implementation structure, the optical film is respectively arranged in contact with the light incident surface of the light guide plate and the display screen, so that the structural stability of the optical film in the sealed cavity can be ensured. Meanwhile, the optical film is respectively in contact with the light incident surface and the display screen of the light guide plate, and can be relatively fixed to the position of the optical film through the light guide plate and the display screen, so that the optical film can be prevented from deforming to a certain extent, and the display effect of the display module is ensured.
Further, the annular sealing element is transparent optical glue or opaque frame glue.
In the implementation structure, the optical glue or the frame glue is used as the annular sealing element, and the optical glue and the frame glue have certain viscosity, so that the structural stability between the display screen and the light guide plate can be further improved. Meanwhile, the frame glue has certain elasticity, and is convenient to fill between the display screen and the light guide plate, so that a closed cavity can be formed easily.
Further, the display module assembly still includes: the wrapping structure is arranged on the side surface of the light guide plate and wraps the side surface of the light guide plate; the side face of the light guide plate is located between the light emergent face and the light incident face.
In the implementation structure, the side face of the light guide plate can be shielded through the wrapping structure, so that light can be prevented from leaking from the side face of the light guide plate, and the display effect of the display template is improved.
Further, the area enclosed by the outer edge of the annular sealing member is consistent with the shape and the size of the display screen and the light guide plate.
In above-mentioned implementation structure, the region that the outward flange of annular seal spare encloses is unanimous with the shape size of display screen and light guide plate, like this, when setting up, the outward flange of annular seal spare can align with the outward flange of display screen and light guide plate to make there not exposed gap between display screen and the light guide plate, thereby can avoid appearing falling grey scheduling problem between display screen and light guide plate, can also improve display module's aesthetic property simultaneously.
Further, the display module assembly still includes: the upper edge of the backlight cavity structural part is fixed with the light incident surface of the light guide plate, and the backlight cavity structural part and the light incident surface of the light guide plate form a backlight cavity together; the backlight source is arranged at the bottom of the backlight cavity.
In the implementation structure, the backlight source is fixed through the backlight cavity structural member, so that the backlight source and the light incident surface of the light guide plate are relatively fixed, and meanwhile, the backlight cavity can be used for ensuring that the backlight source and the light incident surface have enough light mixing distance. The structure is simple and reliable.
The embodiment of the application also provides electronic equipment which comprises any one of the display modules.
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 display module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a display module having an optical film according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display screen according to an embodiment of the present application;
fig. 4 is an exploded view of a display screen, a light guide plate and a ring seal according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a specific display module according to an embodiment of the present disclosure.
Icon: 1-a display screen; 11-a liquid crystal panel; 12-an upper polarizer; 13-lower polarizer; 2-a light guide plate; 3-an annular seal; 4-backlight light source; 5-backlight cavity structural member; 6-optical film.
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 improve the effective display area occupation ratio of the medium-size and large-size display module, the embodiment of the application provides the display module. The display module provided in the embodiments of the present application is described below with reference to fig. 1 to 4.
Referring to fig. 1, the display module provided in the embodiment of the present application includes a display screen 1, a light guide plate 2, an annular sealing member 3, and a backlight source 4. Wherein:
the light guide plate 2 has a light exit surface and a light entrance surface opposite to each other.
The annular sealing member 3 is disposed between the light emitting surfaces of the display screen 1 and the light guide plate 2, and forms a closed chamber together with the light emitting surfaces of the display screen 1 and the light guide plate 2.
In the embodiment of the present application, the sealed chamber needs to be in a negative pressure state, that is, the air pressure in the sealed chamber needs to be smaller than the air pressure outside the sealed chamber, so that the display screen 1 and the light guide plate 2 can be tightly combined together under the action of the air pressure difference.
In order to make the sealed chamber capable of being in a negative pressure state, in a possible implementation manner of the embodiment of the present application, the attaching operation of the display screen 1, the annular sealing member 3 and the light guide plate 2 may be performed in a vacuum environment. It should be noted that, the vacuum environment described in the embodiments of the present application refers to an environment having a pressure less than normal atmospheric pressure. In addition, in the embodiment of the present application, the hermetic chamber may be made to be in a negative pressure state by using a vacuum pump to pump vacuum or the like.
In addition, in this embodiment of the application, the light guide plate 2 may be made of a material with a higher structural strength, such as glass, so that the light guide plate 2 may have sufficient structural strength while being combined with the display screen 1 through the air pressure effect, and the problem of structural deformation or even structural fracture is not generated.
In the embodiment of the present application, the backlight source 4 faces the light incident surface of the light guide plate 2 and is fixed relative to the light incident surface of the light guide plate 2. Thus, when the backlight light source 4 emits light, the light enters from the light incident surface of the light guide plate 2, and is guided out from the light emitting surface to the display panel 1, so that the display panel 1 displays the light. In order to ensure that the display panel 1 has a better display effect, the backlight source 4 should be spaced from the light incident surface by a proper light mixing distance.
In the embodiment of the present application, the light mixing distance that the backlight light source 4 should be spaced from the light incident surface may be determined by calculation in advance, so that the backlight light source 4 is set according to the determined light mixing distance when being set.
In addition, the backlight source 4 can be implemented by L ED (L light-Emitting Diode), thereby obtaining better display effect and lower energy consumption.
In the embodiment of the present application, the light emitting surface of the light guide plate 2 may have screen printing dots, so that scattering of light transmitted from the backlight source 4 is realized through the screen printing dots, and thus the light output to the display screen 1 is more uniform.
It should be noted that, in the embodiment of the present application, the light emitting surface of the light guide plate 2 may be selectively made to be a frosted surface or a smooth surface according to the actually determined light mixing distance and the distance between the backlight light sources 4, and the light transmittance of the white ink of the silk-screen dots may be determined. For example, when the light mixing distance or the distance between the backlight light sources 4 is larger, the light emitting surface may be set as a frosted surface, and white ink with relatively poorer light transmittance is set to form a silk-screen dot, so as to reduce the risk of occurrence of a lamp shadow. On the contrary, if the light mixing distance is small and the backlight sources 4 are enough (the more the backlight sources 4 are, the smaller the distance between the backlight sources 4 is), at this time, the light emitting surface can be set to be a smooth surface and white ink with better light transmittance can be used to form the silk-screen dots.
In the embodiment of the present application, in order to ensure the display effect of the display module, referring to fig. 2, an optical film 6 may be disposed in the sealed chamber, so that the light emitted by the backlight source 4 is modulated by the optical film 6 to obtain the light required by the display screen 1.
In practical applications, to obtain light satisfying practical requirements, the light transmitted from the light guide plate 2 may need to be processed by using various types of optical films. For this reason, in the present embodiment, the optical film 6 may be a composite optical film. The composite optical film includes a plurality of monolithic optical films disposed in a stack. These monolithic optical films may be simply stacked together or may be bonded by a transparent optical adhesive (e.g., an optical adhesive such as OCA).
In the embodiment of the present application, the optical film 6 may be implemented by one or more of a polarization enhancement film, a prism sheet, a diffusion sheet, and a quantum dot film.
In the present embodiment, when the optical film 6 is provided, the optical film 6 may be brought into contact with any one of the light guide plate 2 and the display screen 1. However, in the embodiment of the present application, the optical film 6 may be in contact with the light guide plate 2 and the display screen 1, respectively, so that the structural stability of the optical film 6 in the sealed chamber may be ensured. Meanwhile, the optical film 6 is respectively contacted with the light incident surface of the light guide plate 2 and the display screen 1, and the relative fixation of the position of the optical film 6 can be realized through the light guide plate 2 and the display screen 1, so that the optical film 6 can be prevented from deforming to a certain extent, and the display effect of the display module is ensured.
It should be understood that when the optical film 6 is disposed in contact with the light incident surface of the light guide plate 2 and the display screen 1, respectively, there may be some gaps between the optical film 6 and the light guide plate 2 and between the optical film 6 and the display screen 1 on a microscopic level, and air may exist in the gaps. By reducing the air content in these gaps, the closed chamber can be brought to a negative pressure. Through practical test, the optical film 6 is respectively arranged in contact with the light incident surface of the light guide plate 2 and the display screen 1, and when the air pressure of the closed cavity is not more than 0.9 times of atmospheric pressure, the display screen 1 and the light guide plate 2 can be effectively combined and fixed.
In the embodiment of the present application, referring to fig. 3, the display panel 1 may include a liquid crystal panel 11, an upper polarizer 12, and a lower polarizer 13. The upper polarizer 12 and the lower polarizer 13 are respectively disposed on two sides of the liquid crystal panel 11, and the lower polarizer 13 is disposed on one side of the liquid crystal panel 11 facing the light guide plate 2.
In the embodiment of the present application, the annular sealing member 3 may be a transparent optical sealant or an opaque sealant. For example, the annular seal 3 may be transparent or black acrylic, epoxy, two-component silicone, or the like.
It should be noted that when the annular sealing member 3 is made of transparent optical cement, the optical cement with the light transmittance close to that of the sealed chamber can be used, so that the problems of bright spots and the like of the display module during displaying are avoided.
It should be understood that, in the embodiment of the present application, besides the transparent optical glue or the opaque sealant, the sealant may also be made of other non-adhesive elastic materials (such as rubber, etc.), so that the elastic material is completely attached to the display screen 1 and the light guide plate 2 by the good deformation performance of the elastic material, thereby forming the sealed chamber.
In the embodiment of the present application, the size of the display screen 1 may be the same as the size of the light guide plate 2, and the area surrounded by the outer edge of the annular sealing member 3 may be the same as the shape and size of the display screen 1 and the light guide plate 2. Like this, when setting up, the outward flange of annular seal 3 can align with the outward flange of display screen 1 and light guide plate 2 to make do not have exposed gap between display screen 1 and the light guide plate 2, thereby can avoid appearing falling grey scheduling problem between display screen 1 and light guide plate 2, can also improve display module's aesthetic property simultaneously.
For example, as shown in fig. 4, the display panel 1 and the light guide plate 2 may be circular arc sheets with the same size, and the annular sealing member 3 is a circular arc ring made of elastic material with the same size as the display panel 1 and the light guide plate 2.
In the embodiment of the present application, the side surface of the light guide plate 2 may be directly exposed to the outside. However, in order to prevent the light from leaking out of the side surface of the light guide plate 2 (i.e. the surface between the light emitting surface and the light incident surface of the light guide plate 2), in a possible implementation manner of the embodiment of the present application, a wrapping structure may be disposed on the side surface of the light guide plate 2, so that the side surface of the light guide plate 2 is wrapped by the wrapping structure.
In the embodiment of the present application, the wrapping structure may be a material such as glue, paint, and polymer coated on the side surface of the light guide plate 2, or a structure such as a metal sheet and a plastic sheet attached to the side surface of the light guide plate 2.
In the embodiment of the present application, referring to fig. 1, the backlight source 4 may be fixed to the light guide plate 2 by the backlight cavity structure 5. The upper edge of the backlight cavity structural member 5 is fixed to the light incident surface of the light guide plate 2, thereby forming a backlight cavity together with the light incident surface of the light guide plate 2. The backlight source 4 is disposed at the bottom of the backlight cavity, so as to keep a sufficient light mixing distance with the light incident surface of the light guide plate 2.
In the embodiment of the present application, the backlight cavity may be in communication with the atmosphere, thereby facilitating heat dissipation.
In addition, the backlight cavity structural member 5 can be fixed to the light incident surface of the light guide plate 2 through structural adhesive bonding, mortise and tenon structural connection, metal welding and other connection modes.
In addition, the embodiment of the application also provides electronic equipment which can comprise the display module.
In the embodiment of the present application, the electronic device includes, but is not limited to, a display stand, a television, a computer, and the like having a middle or large size display module.
The display module assembly and the electronic equipment that this application embodiment provided have formed airtight cavity through annular seal 3 between display screen 1 and the light guide plate 2, and airtight cavity is in the negative pressure state. Thus, the display screen 1, the light guide plate 2 and the annular sealing member 3 can be combined based on the atmospheric pressure, so that the display screen 1 and the light guide plate 2 can be protected and fixed without a frame. This just makes the display module assembly that this application embodiment provided more frivolous, and the display module assembly sees except the extremely narrow invalid area of display screen from the front simultaneously, can not see the existence of other frame structures, and visual effect is good, can effectively improve the effective display area ratio of medium and large-size display module assembly.
Example two:
in this embodiment, on the basis of the first embodiment, a specific display module structure in which the light guide plate 2 is silk-screen glass is taken as an example to exemplify the scheme of the embodiment of the present application.
Referring to fig. 5, the display panel 1 includes an upper polarizer 12, a liquid crystal panel 11, and a lower polarizer 13. The glass light guide plate 2 has a light incident surface, a light emitting surface and a plurality of side surfaces between the light incident surface and the light emitting surface, which are parallel to each other. Wherein, the surface of the glass light guide plate 2 with the silk-screen dots is a light-emitting surface.
The composite optical film 6 is arranged between the lower polarizer 13 of the display screen 1 and the light-emitting surface of the glass light guide plate 2, and the size of the composite optical film 6 is smaller than that of the liquid crystal panel 11 and the glass light guide plate 2, so that grooves are formed on the side edges of the composite optical film 6, the liquid crystal panel 11 and the glass light guide plate 2.
Transparent or black acrylic resin or epoxy resin or double-component silica gel is used as frame glue and filled in the groove to contact with the edge of the lower polarizer 13 of the liquid crystal panel 11, the edge of the light-emitting surface of the glass light guide plate 2 and the side surface of the composite optical film 6 to form a closed cavity.
The sealed cavity is in a negative pressure state by means of local air suction of a vacuum pump or execution of the laminating setting process in a vacuum cavity environment, and the air pressure in the sealed cavity is not more than 0.9 times of atmospheric pressure.
The edge of the light incident surface of the glass light guide plate 2 is connected and fixed with the upper edge of the backlight cavity structural member 5, the backlight cavity structural member 5 and the light incident surface of the glass light guide plate 2 form a backlight cavity together, L ED light sources arranged at intervals are arranged at the bottom of the backlight cavity, a sufficient light mixing distance is kept between the L ED light sources and the light incident surface of the glass light guide plate 2 through the backlight cavity, and the backlight cavity is communicated with the atmosphere.
Adopt the display module assembly that this application embodiment provided, when the user watched from display module assembly's front, except that the very narrow invalid area that the display screen had, there was not other frame structures, visual effect is good, and effective display area accounts for than higher. Take 65 cun display module assembly as an example, present conventional display module assembly effective display area accounts for 92.2%, and the display module assembly effective display area of super narrow limit accounts for 95.1%, but adopts the display module assembly that this application embodiment provided, and effective display area accounts for and can improve to 97.5% above.
In addition, light guide plate 2 adopts silk screen printing glass to realize in this application embodiment to compare in traditional PMMA (Polymethyl methacrylate) light guide plate or PC (polycarbonate) light guide plate, can provide sufficient structural strength for the display module assembly, and non-deformable makes the structural stability of module better, and is more frivolous durable.
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.
In the embodiments provided herein, a plurality refers to two or more.
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. A display module, comprising:
a display screen;
the light guide plate is provided with a light emergent surface and a light incident surface which are opposite;
the annular sealing piece is arranged between the display screen and the light emitting surface of the light guide plate, forms a closed cavity together with the display screen and the light emitting surface of the light guide plate, and is in a negative pressure state;
the backlight source faces the light incident surface of the light guide plate, is relatively fixed with the light incident surface of the light guide plate, and has a preset light mixing distance with the light incident surface.
2. The display module of claim 1, wherein the display module further comprises:
and the optical film is arranged in the closed cavity, and the side surface of the optical film is in contact with the annular sealing element.
3. The display module of claim 2, wherein the optical film is a composite optical film; the composite optical film comprises a plurality of single optical films which are arranged in a stacked mode, or comprises a plurality of single optical films which are arranged in a stacked mode, and two adjacent single optical films are bonded through transparent optical cement.
4. The display module of claim 3, wherein the single optical film is a polarized brightness enhancement film, a prism sheet, a diffuser sheet, or a quantum dot film.
5. The display module of claim 2, wherein the optical film is in contact with the light incident surface of the light guide plate and the display screen, respectively.
6. The display module as claimed in claim 1, wherein the annular sealing member is a transparent optical sealant or an opaque sealant.
7. The display module of claim 1, wherein the display module further comprises:
the wrapping structure is arranged on the side surface of the light guide plate and wraps the side surface of the light guide plate; the side face of the light guide plate is located between the light emergent face and the light incident face.
8. The display module according to claim 1, wherein the outer edge of the annular sealing member encloses an area conforming to the shape and size of the display screen and the light guide plate.
9. The display module according to any one of claims 1-8, wherein the display module further comprises:
the upper edge of the backlight cavity structural part is fixed with the light incident surface of the light guide plate, and the backlight cavity structural part and the light incident surface of the light guide plate form a backlight cavity together;
the backlight source is arranged at the bottom of the backlight cavity.
10. An electronic device, comprising: a display module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010348314.6A CN111458937A (en) | 2020-04-28 | 2020-04-28 | Display module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010348314.6A CN111458937A (en) | 2020-04-28 | 2020-04-28 | Display module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111458937A true CN111458937A (en) | 2020-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010348314.6A Pending CN111458937A (en) | 2020-04-28 | 2020-04-28 | Display module and electronic equipment |
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