CN111175868A - Diffusion plate, liquid crystal display screen and spliced wall display screen - Google Patents
Diffusion plate, liquid crystal display screen and spliced wall display screen Download PDFInfo
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- CN111175868A CN111175868A CN202010073821.3A CN202010073821A CN111175868A CN 111175868 A CN111175868 A CN 111175868A CN 202010073821 A CN202010073821 A CN 202010073821A CN 111175868 A CN111175868 A CN 111175868A
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- diffuser plate
- crystal display
- diffusion
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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
- G02F1/133504—Diffusing, scattering, diffracting elements
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
Abstract
The invention relates to a diffusion plate, a liquid crystal display screen and a spliced wall display screen, and relates to the technical field of display. The main technical scheme adopted is as follows: a diffuser plate, comprising: a body and a diffusion layer; the body is made of transparent glass, and a plurality of annular grooves are formed in the first surface of the body at intervals and close to the edge of the body; at least one surface of the body is laminated with the diffusion layer; the groove is composed of an arc-shaped groove wall and a vertical groove wall, the cross section of the groove is similar to a V shape, the arc-shaped groove wall is close to the edge of the body relative to the vertical groove wall, and the arc-shaped groove wall can reflect part of light rays incident from the second surface of the body to the edge area of the body. The recess that the body first surface of diffuser plate set up, it can be with the marginal zone that comes from the partial light reflection of diffuser plate second surface to the diffuser plate, and then makes the edge of diffuser plate bright, has solved the problem that shows the dark space appears at liquid crystal display's display area border.
Description
Technical Field
The invention relates to the technical field of display, in particular to a diffusion plate, a liquid crystal display screen and a spliced wall display screen.
Background
In the display field, large-size tiled wall display is a current hotspot, and is formed by splicing a plurality of liquid crystal display screens, a plurality of light emitting diode display screens or a plurality of organic electroluminescent display screens.
The width of the edge black matrix area of the existing liquid crystal display screen is only 0.5-0.6mm, and the supporting surface of the frame at the bottom of the display panel generally needs to be more than 1mm to realize effective assembly, so that the supporting surface can enter the display area (AA area) of the display panel, pixels at the edge of the display panel are shielded, and an obvious black edge appears at the edge of the liquid crystal display screen. In addition, because the diffusion plate of the liquid crystal display screen in the prior art expands under the high-temperature condition, a gap is also left between the diffusion plate and the frame, no light can reach the gap, and the gap corresponds to an AA area of a panel, so that a black edge appears at the edge of the display panel; in addition, even if there is no gap between the diffuser and the bezel, a dark display area is formed at the edge of the display panel in the area where the edge of the diffuser overlaps the bezel and cannot receive light from the backlight.
In summary, the technical problem of displaying a black edge or a dark display area at the edge of a liquid crystal display screen in the prior art needs to be solved urgently.
Disclosure of Invention
The invention mainly aims to provide a diffusion plate with a novel structure, a liquid crystal display screen and a spliced wall display screen, so that the technical problem that the liquid crystal display screen displays black edges or dark display areas at the edges can be solved.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the invention, a diffusion plate is provided, which comprises:
the body is made of transparent glass, and a plurality of annular grooves are formed in the first surface of the body at intervals and close to the edge of the body;
a diffusion layer, wherein the diffusion layer is laminated on at least one surface of the body;
the groove is composed of an arc-shaped groove wall and a vertical groove wall, the cross section of the groove is similar to a V shape, the arc-shaped groove wall is close to the edge of the body relative to the vertical groove wall, and the arc-shaped groove wall can reflect part of light incident from the second surface of the body to the edge area of the body.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, in the diffuser plate, a radius of the arc groove wall is greater than or equal to two times of a thickness of the body.
Optionally, in the diffuser plate, an arc radius of the arc-shaped groove wall is equal to two times of a thickness of the body.
Optionally, in the diffuser plate, a depth of the groove is 0.3mm to 0.5 mm;
the distance between two adjacent grooves is 0.3mm-0.7 mm.
Optionally, in the diffuser plate, the number of the grooves is 3 to 5.
Optionally, in the diffuser plate, the diffuser layer is a diffuser film, the diffuser film is stacked on one surface of the body, or the number of the diffuser films is two, and the diffuser film is stacked on two surfaces of the body respectively;
or, the diffusion layer is an ink layer, and the ink layer is arranged on the second surface of the body in a laminating manner.
In addition, the purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the present invention, a liquid crystal display panel includes:
the liquid crystal display module comprises a metal back plate, a frame, a liquid crystal display module and a diffusion plate;
the diffusion plate includes: the body is made of transparent glass, and a plurality of annular grooves are formed in the first surface of the body at intervals and close to the edge of the body;
a diffusion layer, wherein the diffusion layer is laminated on at least one surface of the body;
the groove is composed of an arc-shaped groove wall and a vertical groove wall, the cross section of the groove is approximate to a V shape, the arc-shaped groove wall is close to the edge of the body relative to the vertical groove wall, and the arc-shaped groove wall can reflect part of light rays incident from the second surface of the body to the edge area of the body;
the first end of frame with metal backboard's edge a week is connected, the second end of frame is provided with supports the step, the marginal overlap joint of diffuser plate second surface is in support on the holding surface of step, the side tip of diffuser plate with support the laminating of the lateral wall of step, the first surface of diffuser plate with the terminal surface parallel and level of the second end of frame, the range upon range of setting of liquid crystal display module is in the second end of frame with on the plane that the first surface of diffuser plate formed.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, in the foregoing liquid crystal display, among the plurality of grooves on the first surface of the diffusion plate, a position of the groove closest to the edge of the diffusion plate corresponds to the edge of the supporting step.
Optionally, the liquid crystal display screen further includes:
and the light guide strip is arranged between the supporting surface of the supporting step and the second surface of the diffusion plate.
In addition, the purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the invention, the spliced wall display screen comprises: a plurality of liquid crystal display panels;
the liquid crystal display panel includes:
the liquid crystal display module comprises a metal back plate, a frame, a liquid crystal display module and a diffusion plate;
the diffusion plate includes: the body is made of transparent glass, and a plurality of annular grooves are formed in the first surface of the body at intervals and close to the edge of the body;
a diffusion layer, wherein the diffusion layer is laminated on at least one surface of the body;
the groove is composed of an arc-shaped groove wall and a vertical groove wall, the cross section of the groove is approximate to a V shape, the arc-shaped groove wall is close to the edge of the body relative to the vertical groove wall, and the arc-shaped groove wall can reflect part of light rays incident from the second surface of the body to the edge area of the body;
the first end of frame with metal backboard's edge a week is connected, the second end of frame is provided with supports the step, the marginal overlap joint of diffuser plate second surface is in support on the holding surface of step, the side tip of diffuser plate with support the laminating of the lateral wall of step, the first surface of diffuser plate with the terminal surface parallel and level of the second end of frame, the range upon range of setting of liquid crystal display module is in the second end of frame with on the plane that the first surface of diffuser plate formed.
By the technical scheme, the diffusion plate, the liquid crystal display screen and the spliced wall display screen at least have the following advantages:
in the technical scheme of the invention, the body of the diffusion plate is made of transparent glass, and the side end part of the diffusion plate can be attached to the frame due to the small thermal expansion coefficient of the glass material, so that a gap is not required to be reserved, and the black edge is prevented from appearing at the edge of the display area of the liquid crystal display screen; and the body first surface of diffuser plate is provided with the recess, and the recess can reflect the marginal zone to the diffuser plate with the part light that comes from the diffuser plate second surface, and then makes the marginal zone of diffuser plate bright, has solved the problem that shows the dark space appears in liquid crystal display's display area border, and then makes liquid crystal display have better display effect, and the concatenation wall display screen that makes the liquid crystal display concatenation form has more display effect.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a diffuser plate according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of another diffuser plate according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a body of a diffuser plate according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a liquid crystal display panel according to a second embodiment of the present invention;
fig. 5 is an enlarged view of fig. 4 at a.
The reference numerals in fig. 1-5 are respectively:
101-diffusion plate, 1-body, 11-groove, 111-arc groove wall, 112-vertical groove wall, 2-diffusion layer, 3-metal back plate, 4-frame, 41-supporting step, 411-supporting surface, 412-side wall, 5-liquid crystal display module, 6-light source and 7-light guide strip.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the diffuser plate, the lcd panel and the tiled wall display according to the present invention, with reference to the accompanying drawings and preferred embodiments, will be made to the following detailed description of the specific embodiments, structures, features and effects thereof. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Example one
As shown in fig. 1 and fig. 3, a diffusion plate according to a first embodiment of the present invention includes: a body 1 and a diffusion layer 2; the body 1 is made of transparent glass, and a plurality of annular grooves 11 are formed in the first surface of the body 1 at intervals around the edge close to the body 1; at least one surface of the body 1 is laminated with the diffusion layer 2; the groove 11 is composed of an arc-shaped groove wall 111 and a vertical groove wall 112, the cross-sectional shape of the groove is approximately V-shaped, the arc-shaped groove wall 111 is close to the edge of the body 1 relative to the vertical groove wall 112, and the arc-shaped groove wall 111 can reflect part of light incident from the second surface of the body 1 to the edge region of the body 1.
Specifically, the diffusion plate 101 is a component for homogenizing the light emitted by the light source 6, so that the point-like light source 6 can be used as the surface light source 6 through the light diffusion function of the diffusion plate 101, and further supplied to the liquid crystal display module, thereby improving the effect of the image displayed by the liquid crystal display module and bringing good experience to users. The diffusion plate 101 provided by the embodiment of the invention is formed by combining a transparent glass plate and the diffusion layer 2, and the light received by the diffusion plate 101 is diffused through the diffusion layer 2 and then transmitted through the transparent glass plate. While the transparent glass plate also acts as a carrier for the diffusion layer 2.
The specific material, i.e. chemical composition, of the transparent glass plate of the body 1 may not be limited, as long as the transparent glass plate is a transparent glass plate, the thickness of the body 1 may be set according to actual use requirements, for example, 1-2 mm may be used, the length and width of the body 1 may not be specifically limited, and specific setting may be performed according to the requirements of the liquid crystal display. The connection mode between the body 1 and the diffusion layer 2 can be selected according to the material of the diffusion layer 2, for example, when the diffusion layer 2 is a film material, the diffusion layer 2 and the diffusion layer 2 can be connected in a laminating mode in a full-lamination process mode, or the diffusion layer 2 can be made of ink and arranged on the surface of the body 1 in a laminating mode in a coating mode.
The annular groove 11 arranged on the body 1 and close to the periphery of the edge of the body 1 is formed in an etching mode, and the groove 11 is arranged to enable light rays emitted from the second surface of the body 1 to be reflected to the edge area of the body 1, so that one groove wall of the groove 11 is arranged to be an arc-shaped groove wall 111, the other groove wall of the groove is arranged to be a vertical groove wall, the vertical groove wall is perpendicular to the first surface of the body 1, the bending direction of the arc-shaped groove wall 111 is preferably inclined towards the second surface of the body 1 and the side edge end direction of the body 1, the light rays are emitted from the second surface of the body 1, the arc-shaped groove wall 111 is equivalent to a convex mirror, the light rays can be reflected to the edge area of the body 1, and the brightness of the edge area of the. In addition, in order to ensure that sufficient light is reflected to the peripheral region of the periphery of the body 1, the number of the grooves 11 needs to be plural. The distance between two adjacent grooves 11 and the structural size of the grooves 11 can be specifically set according to the requirement of the edge of the body 1 on reflected light.
In the technical scheme of the invention, the body 1 of the diffusion plate 101 is made of transparent glass, and the end part of the side edge of the diffusion plate 101 can be attached to the frame 4 due to the small thermal expansion coefficient of the glass, so that a gap is not required to be reserved, and the black edge at the edge of the display area of the liquid crystal display screen is avoided; and the 1 first surface of body of diffuser plate 101 is provided with recess 11, and recess 11 can be regional to the marginal zone of diffuser plate 101 with the partial light reflection that comes from diffuser plate 101 second surface, and then makes diffuser plate 101's edge bright, has solved the problem that shows the dark space appears at liquid crystal display's display area border, and then makes liquid crystal display have better display effect, and the concatenation wall display screen that makes the liquid crystal display concatenation form has more display effect.
As shown in fig. 1 and fig. 2, in the specific implementation, the arc radius of the arc-shaped groove wall 111 is greater than or equal to two times the thickness of the body 1.
Specifically, if the radius of the arc groove wall 111 is set to be equal to or greater than twice the thickness of the main body 1, the reflection surface formed by the arc groove wall 111 can reflect the light rays from the direction of the second surface of the main body 1 and irradiated on the reflection surface to the edge area of the main body 1 in the most part, thereby realizing the highlighting of the edge area of the main body 1.
Further, the radius of the arc groove wall 111 is preferably equal to two times of the thickness of the main body 1, so that the second surface of the main body 1 is located at the focal plane of the reflecting surface of the arc groove wall 111, and the incident light irradiated on the arc groove wall 111 can realize a light reflection mode of approximate total reflection, thereby increasing the brightness of the edge region of the main body 1 as much as possible.
In order to further enable the arc-shaped groove wall 111 to exert the reflection function thereof, the depth of the groove 11 is preferably set to be 0.3mm-0.5 mm; the interval between two adjacent grooves 11 is set to 0.3mm to 0.7 mm. It is preferable to set the number of the grooves 11 to 3 to 5 under the condition that the reflection of the light is ensured. For example, 3 may be provided.
In a specific implementation, the diffusion layer 2 is a diffusion film which is stacked and arranged on one surface of the body 1, or as shown in fig. 2, the number of the diffusion films is two and the diffusion films are stacked and arranged on two surfaces of the body 1 respectively; alternatively, the diffusion layer 2 is an ink layer, and the ink layer is stacked on the second surface of the body 1 as shown in fig. 1.
Specifically, the diffusion film may be made of polyethylene terephthalate (PET) substrate and silicon oxide coating, and the thickness of the diffusion film may be between 0.2mm and 0.3 mm. The diffusion film and the body 1 can be connected in a full-lamination mode. The ink layer may be a silicone compound, and may be disposed on the second surface of the body 1 by coating, but it should be noted that, in order to avoid the accumulation of the ink filled into the groove 11 and the influence on the brightness of the body 1 and the position of the groove 11, when the ink layer is used as the diffusion layer 2, the ink layer can only be disposed on the second surface of the body 1. The thickness of the ink layer may be 10 μm to 20 μm.
Example two
As shown in fig. 4, a second embodiment of the present invention provides a liquid crystal display panel, which includes: a metal back plate 3, a frame 4, a liquid crystal display module 5 and a diffusion plate 101 shown in fig. 1 and 2; the diffusion plate 101 includes: the body 1 is made of transparent glass, and a plurality of annular grooves 11 are formed in the first surface of the body 1 at intervals around the edge close to the body 1; a diffusion layer 2, wherein the diffusion layer 2 is laminated on at least one surface of the body 1; the groove 11 is composed of an arc-shaped groove wall 111 and a vertical groove wall 112, the cross-sectional shape of the groove is approximately V-shaped, the arc-shaped groove wall 111 is close to the edge of the body 1 relative to the vertical groove wall 112, and the arc-shaped groove wall 111 can reflect part of light incident from the second surface of the body 1 to the edge region of the body 1.
The first end of the frame 4 is connected with the edge of the metal back plate 3 in a circle, the second end of the frame 4 is provided with a supporting step 41, the edge of the second surface of the diffusion plate 101 is lapped on a supporting surface 411 of the supporting step 41, the side end of the diffusion plate 101 is attached to the side wall 412 of the supporting step 41, the first surface of the diffusion plate 101 is flush with the end surface of the second end of the frame 4, and the liquid crystal display module 5 is stacked on the plane formed by the second end of the frame 4 and the first surface of the diffusion plate 101. Wherein, the light source 6 is disposed on the metal back 3 between the metal back 3 and the diffusion plate 101.
Specifically, the diffusion plate 101 provided in the first embodiment can be directly used as the diffusion plate 101 in the second embodiment, and the specific implementation structure can refer to the related contents described in the first embodiment, which is not described herein again.
The metal back plate 3 is a component for mounting the light source 6 and the main board, and the structure thereof is known to those skilled in the art and will not be described herein. The frame 4 is a supporting device for supporting between the metal back plate 3 and the diffusion plate 101, and needs to have a certain strength, and in order to ensure that the assembly size improves the assembly precision, the frame can be produced by extrusion molding of aluminum alloy or magnesium alloy, and the overall structure of the frame 4 is known by those skilled in the art, and can be set according to actual practical needs as long as the second end of the frame 4 is ensured to have the supporting step 41. The width of the supporting surface 411 of the supporting step 41 corresponding to the cross section of the frame 4 is about 1mm, and the height of the sidewall of the supporting step 41 is preferably equal to the thickness of the diffusion plate 101 plus the thickness of the double-sided tape, so that after the diffusion plate 101 is lapped on the supporting surface 411 of the supporting step 41 through the double-sided tape, the end surface of the second end of the frame 4 can be flush with the diffusion plate 101, thereby forming a plane for supporting the liquid crystal display module. The connection between the liquid crystal display module and the plane formed by the second end of the frame 4 and the first surface of the diffusion plate 101 may be gluing the edge of a circle, or setting a double-sided adhesive tape on the edge of a circle, or adopting a full-lamination process. The light source 6 can be LED lamp beads arranged in a matrix.
In the technical scheme of the invention, the body 1 of the diffusion plate 101 is made of transparent glass, and the end part of the side edge of the diffusion plate 101 can be attached to the frame 4 due to the small thermal expansion coefficient of the glass, so that a gap is not required to be reserved, and the black edge at the edge of the display area of the liquid crystal display screen is avoided; and the 1 first surface of body of diffuser plate 101 is provided with recess 11, recess 11 can be with the marginal zone that comes from diffuser plate 101 second surface's partial light reflection to diffuser plate 101, and then make diffuser plate 101's edge bright, the holding surface 411 of having solved because of frame 4's support step 41 shelters from 6 light of light source, and the problem that shows the dark space appears in the display area border of the liquid crystal display who produces, and then make liquid crystal display have better display effect, the concatenation wall display that makes the liquid crystal display concatenation form has more display effect.
In an implementation, as shown in fig. 5, among the plurality of grooves 11 on the first surface of the diffusion plate 101, the position of the groove 11 closest to the edge of the diffusion plate 101 corresponds to the edge of the supporting step 41.
Specifically, the groove 11 closest to the edge on the diffusion plate 101 body 1 corresponds to the edge of the supporting step 41, and there are various ways, where when the groove 11 projects toward the supporting step 41, the edge projection of the arc-shaped groove wall 111 of the groove 11 closest to the edge of the diffusion plate 101 coincides with the edge of the supporting step 41, or the edge projection of the arc-shaped groove wall 111 of the groove 11 closest to the edge of the diffusion plate 101 covers the edge of the supporting step 41, so as to ensure that light is reflected to the edge of the diffusion plate 101 as much as possible, and ensure that the diffusion plate 101 is located in the area where the supporting step 41 covers and shines.
As shown in fig. 4 and fig. 5, in a specific implementation, the liquid crystal display panel provided in the embodiment of the present invention further includes: a light guide bar 7, the light guide bar 7 being disposed between the supporting surface 411 of the supporting step 41 and the second surface of the diffusion plate 101.
Specifically, the light can be further introduced into the edge region of the diffusion plate 101 by the arrangement of the light guide bar 7, and the brightness of the edge region is increased.
EXAMPLE III
The third embodiment of the present invention provides a display screen of a splicing wall, which includes: a plurality of liquid crystal displays as shown in fig. 4, the liquid crystal displays comprising: a metal back plate 3, a frame 4, a liquid crystal display module 5 and a diffusion plate 101 shown in fig. 1 and 2; the diffusion plate 101 includes: the body 1 is made of transparent glass, and a plurality of annular grooves 11 are formed in the first surface of the body 1 at intervals around the edge close to the body 1; a diffusion layer 2, wherein the diffusion layer 2 is laminated on at least one surface of the body 1; the groove 11 is composed of an arc-shaped groove wall 111 and a vertical groove wall 112, the cross-sectional shape of the groove is approximately V-shaped, the arc-shaped groove wall 111 is close to the edge of the body 1 relative to the vertical groove wall 112, and the arc-shaped groove wall 111 can reflect part of light incident from the second surface of the body 1 to the edge region of the body 1.
The first end of frame 4 with metal backplate 3's edge a week is connected, the second end of frame 4 is provided with supports step 41, the edge overlap joint of diffuser plate 101 second surface is in support on the holding surface 411 of support step 41, the side tip of diffuser plate 101 with the lateral wall laminating of support step 41, the first surface of diffuser plate 101 with the terminal surface parallel and level of the second end of frame 4, the setting that LCD module 5 is range upon range of is in the second end of frame 4 with on the plane that the first surface of diffuser plate 101 formed. Wherein, the light source 6 is disposed on the metal back 3 between the metal back 3 and the diffusion plate 101.
Specifically, the diffusion plate 101 provided in the first embodiment can be directly used as the diffusion plate 101 in the third embodiment, and the specific implementation structure can refer to the related contents described in the first embodiment, and details are not described herein again.
In the technical scheme of the invention, the body 1 of the diffusion plate 101 is made of transparent glass, and the end part of the side edge of the diffusion plate 101 can be attached to the frame 4 due to the small thermal expansion coefficient of the glass, so that a gap is not required to be reserved, and the black edge at the edge of the display area of the liquid crystal display screen is avoided; and the 1 first surface of body of diffuser plate 101 is provided with recess 11, recess 11 can be with the marginal zone that comes from diffuser plate 101 second surface's partial light reflection to diffuser plate 101, and then make diffuser plate 101's edge bright, the holding surface 411 of having solved because of frame 4's support step 41 shelters from 6 light of light source, and the problem that shows the dark space appears in the display area border of the liquid crystal display who produces, and then make liquid crystal display have better display effect, the concatenation wall display that makes the liquid crystal display concatenation form has more display effect.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. A diffuser plate, comprising:
the body is made of transparent glass, and a plurality of annular grooves are formed in the first surface of the body at intervals and close to the edge of the body;
a diffusion layer, wherein the diffusion layer is laminated on at least one surface of the body;
the groove is composed of an arc-shaped groove wall and a vertical groove wall, the cross section of the groove is similar to a V shape, the arc-shaped groove wall is close to the edge of the body relative to the vertical groove wall, and the arc-shaped groove wall can reflect part of light incident from the second surface of the body to the edge area of the body.
2. The diffuser plate of claim 1,
the arc radius of the arc-shaped groove wall is more than or equal to two times of the thickness of the body.
3. The diffuser plate of claim 2,
the arc radius of the arc groove wall is equal to two times of the thickness of the body.
4. The diffuser plate of claim 1,
the depth of the groove is 0.3mm-0.5 mm;
the distance between two adjacent grooves is 0.3mm-0.7 mm.
5. The diffuser plate of claim 1,
the number of the grooves is 3-5.
6. The diffuser plate of claim 1,
the diffusion layers are diffusion films which are arranged on one surface of the body in a laminated mode, or the number of the diffusion films is two, and the diffusion layers are respectively arranged on the two surfaces of the body in a laminated mode;
or, the diffusion layer is an ink layer, and the ink layer is arranged on the second surface of the body in a laminating manner.
7. A liquid crystal display panel, comprising:
a metal back plate, a frame, a liquid crystal display module and the diffusion plate of any one of claims 1 to 6;
the first end of frame with metal backboard's edge a week is connected, the second end of frame is provided with supports the step, the marginal overlap joint of diffuser plate second surface is in support on the holding surface of step, the side tip of diffuser plate with support the laminating of the lateral wall of step, the first surface of diffuser plate with the terminal surface parallel and level of the second end of frame, the range upon range of setting of liquid crystal display module is in the second end of frame with on the plane that the first surface of diffuser plate formed.
8. The liquid crystal display panel of claim 7,
among the plurality of grooves on the first surface of the diffusion plate, the position of the groove closest to the edge of the diffusion plate corresponds to the edge of the supporting step.
9. The liquid crystal display panel of claim 8, further comprising:
and the light guide strip is arranged between the supporting surface of the supporting step and the second surface of the diffusion plate.
10. A spliced wall display screen is characterized by comprising:
a plurality of liquid crystal display panels according to any of claims 7 to 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534521A (en) * | 2021-08-02 | 2021-10-22 | 宁波视睿迪光电有限公司 | Frame and display module |
| WO2022205870A1 (en) * | 2021-03-30 | 2022-10-06 | 京东方科技集团股份有限公司 | Display device and tiled display device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH052221A (en) * | 1991-06-24 | 1993-01-08 | Fujitsu Ltd | Diffusion plate with lenticular lens and its manufacture |
| JP2002006143A (en) * | 2000-06-26 | 2002-01-09 | Nitto Denko Corp | Light guide plate, surface light source device and reflective liquid crystal display device |
| CN1499263A (en) * | 2002-10-30 | 2004-05-26 | 阿尔卑斯电气株式会社 | Illuminaotr and mfg. method for LCD and diffusibility board |
| CN101122703A (en) * | 2006-08-11 | 2008-02-13 | 鸿富锦精密工业（深圳）有限公司 | Optical board and the backlight module using same |
| WO2011004906A1 (en) * | 2009-07-09 | 2011-01-13 | 住友化学株式会社 | Liquid crystal display device and light diffusion film |
| CN202972937U (en) * | 2012-12-24 | 2013-06-05 | 京东方科技集团股份有限公司 | Diffusion plate, backlight module and display device |
| CN103712161A (en) * | 2013-12-23 | 2014-04-09 | 合肥京东方光电科技有限公司 | Diffusion plate, backlight module and display device |
| CN204154918U (en) * | 2014-08-18 | 2015-02-11 | 海宁市正兴耐力板有限公司 | A kind of circular blast microstructure light diffusing sheet |
| CN106932958A (en) * | 2015-11-26 | 2017-07-07 | 乐金显示有限公司 | Back light unit and the liquid crystal display device including it |
| CN109521600A (en) * | 2018-10-23 | 2019-03-26 | 惠州市华星光电技术有限公司 | A kind of backlight module and its display device |
-
2020
- 2020-01-22 CN CN202010073821.3A patent/CN111175868B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH052221A (en) * | 1991-06-24 | 1993-01-08 | Fujitsu Ltd | Diffusion plate with lenticular lens and its manufacture |
| JP2002006143A (en) * | 2000-06-26 | 2002-01-09 | Nitto Denko Corp | Light guide plate, surface light source device and reflective liquid crystal display device |
| CN1499263A (en) * | 2002-10-30 | 2004-05-26 | 阿尔卑斯电气株式会社 | Illuminaotr and mfg. method for LCD and diffusibility board |
| CN101122703A (en) * | 2006-08-11 | 2008-02-13 | 鸿富锦精密工业（深圳）有限公司 | Optical board and the backlight module using same |
| WO2011004906A1 (en) * | 2009-07-09 | 2011-01-13 | 住友化学株式会社 | Liquid crystal display device and light diffusion film |
| CN202972937U (en) * | 2012-12-24 | 2013-06-05 | 京东方科技集团股份有限公司 | Diffusion plate, backlight module and display device |
| CN103712161A (en) * | 2013-12-23 | 2014-04-09 | 合肥京东方光电科技有限公司 | Diffusion plate, backlight module and display device |
| CN204154918U (en) * | 2014-08-18 | 2015-02-11 | 海宁市正兴耐力板有限公司 | A kind of circular blast microstructure light diffusing sheet |
| CN106932958A (en) * | 2015-11-26 | 2017-07-07 | 乐金显示有限公司 | Back light unit and the liquid crystal display device including it |
| CN109521600A (en) * | 2018-10-23 | 2019-03-26 | 惠州市华星光电技术有限公司 | A kind of backlight module and its display device |
Non-Patent Citations (1)
| Title |
|---|
| 《基础物理》编写组编: "《上海市大学教材 基础物理 工科用 下》", 31 August 1974 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205870A1 (en) * | 2021-03-30 | 2022-10-06 | 京东方科技集团股份有限公司 | Display device and tiled display device |
| CN113534521A (en) * | 2021-08-02 | 2021-10-22 | 宁波视睿迪光电有限公司 | Frame and display module |
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| Publication number | Publication date |
|---|---|
| CN111175868B (en) | 2022-09-06 |
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