CN115294879B - Spliced display device - Google Patents
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- CN115294879B CN115294879B CN202210752065.6A CN202210752065A CN115294879B CN 115294879 B CN115294879 B CN 115294879B CN 202210752065 A CN202210752065 A CN 202210752065A CN 115294879 B CN115294879 B CN 115294879B
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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
- G09F9/3023—Segmented electronic displays
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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
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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
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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
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
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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
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- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application discloses splice display device adopts two at least liquid crystal display panels, two at least liquid crystal display panels splice setting, have the gap between two adjacent liquid crystal display panels, liquid crystal display panels includes non-display area and display area, non-display area sets up in at least one side of display area, liquid crystal display panels includes first base plate, second base plate and liquid crystal layer, first base plate and second base plate set up relatively, the liquid crystal layer sets up between first base plate and second base plate, the second base plate still is provided with the grating layer towards the one side of first base plate and corresponds to non-display area, at least one compensation panel, compensation panel sets up in the non-display area of two adjacent liquid crystal display panels and shelters from the gap, wherein the grating layer is used for weakening compensation panel's visual characteristic, and then reduce the display effect difference between liquid crystal display panel and the compensation panel.
Description
Technical Field
The application relates to the technical field of display, in particular to a spliced display device.
Background
With the advent of the information age, the demand for oversized liquid crystal panels is growing, such as outdoor commercial display, meeting white boards and the like, two polarizers are needed in the traditional liquid crystal panel, the light transmission axes are mutually perpendicular, the maximum width of the production line of the traditional polarizers is 2500 mm, the largest-sized liquid crystal panel capable of meeting the requirement is 112 inches, and the large-sized liquid crystal panel is limited by the wide width of the polarizers.
The method for combining and splicing the liquid crystal panels is the simplest and effective method for enlarging the size of the liquid crystal panel, and although the frame of the existing liquid crystal panel technology can be quite narrow, the gap at the spliced position is quite obvious and appears black, and the picture cannot be displayed, so that the display effect of the spliced screen is greatly reduced, and a solution is needed to be provided.
In the research and practice process of the prior art, the inventor of the application finds that the method for solving the black joint is to place a strip-shaped direct display panel at the joint as a compensation panel and display pictures together with the spliced liquid crystal panel, so that the aim of eliminating the joint can be achieved, and the display effect is improved. The problem is that the liquid crystal does not emit light, the display effect needs to be realized by means of backlight, the direct display panel is self-luminous, the display effect of the liquid crystal panel and the direct display panel is greatly different, and one of the most prominent problems is the problem of visual angles. At present, in-factory mass production liquid crystal screens are vertically arranged liquid crystal panels, the viewing angle characteristics of the liquid crystal panels are poor due to the dependence of birefringence angles of liquid crystals, light emitting diode lamp beads in direct display panel display are surface light, and the viewing angle characteristics are good, so that under a large viewing angle, the display effect of the direct display panel at a joint is different from that of the liquid crystal panels, obvious bright stripes at the joint can appear, and the problem to be solved is urgent.
Disclosure of Invention
The embodiment of the application provides a spliced display device, which can change the visual characteristics of a liquid crystal display panel, and further reduce the display effect difference between the liquid crystal display panel and a compensation panel.
The embodiment of the application provides a tiled display device, including:
at least two liquid crystal panels are spliced, and a gap is formed between every two adjacent liquid crystal panels; the liquid crystal panel comprises a non-display area and a display area, and the non-display area is arranged on at least one side of the display area; the liquid crystal panel comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged; the liquid crystal layer is arranged between the first substrate and the second substrate; the second substrate is provided with a grating layer on one surface facing the first substrate and corresponds to the non-display area;
and the compensation panel is arranged in the non-display areas of the two adjacent liquid crystal panels and shields the gap.
Optionally, in some embodiments of the present application, the tiled display device further includes a backlight module, where the backlight module is disposed on a light incident side of the liquid crystal panel; the backlight module further comprises a light source and a quantum dot conversion film, wherein the quantum dot conversion film is arranged on one side close to the liquid crystal panel, and scattering particles are doped in the quantum dot conversion film.
Optionally, in some embodiments of the present application, the backlight module includes a light source that emits blue light, the quantum dot conversion film includes a red quantum dot layer, a green quantum dot layer, and a transparent layer, and the scattering particles are doped in the transparent layer.
Optionally, in some embodiments of the present application, the tiled display device further includes a backlight module, where the backlight module is disposed on a light incident side of the liquid crystal panel; the backlight module is used for providing a blue light source for the liquid crystal panel;
the second substrate comprises a substrate, a plurality of color resistors and a quantum dot conversion film, the plurality of color resistors are arranged on one side of the substrate close to the first substrate, and the quantum dot conversion film is arranged on one side of the plurality of color resistors close to the first substrate;
the plurality of color resistors includes a red color resistor, a green color resistor, and a blue color resistor, and the red color resistor, the green color resistor, and the blue color resistor correspond to the display area;
the quantum dot conversion film comprises a red quantum dot layer, a green quantum dot layer and a transparent layer, wherein the red quantum dot layer corresponds to the red resistor, the green quantum dot layer corresponds to the green resistor, and the transparent layer corresponds to the blue resistor;
wherein the blue color resistor is internally doped with scattering particles or the transparent layer is internally doped with scattering particles.
Optionally, in some embodiments of the present application, the refractive index of the transparent layer is the same as the refractive indices of the red quantum dot layer and the green quantum dot layer.
Optionally, in some embodiments of the present application, the second substrate further includes a black matrix disposed in the display area, and the black matrix is disposed between the color resists; the quantum dot conversion film further comprises a separation wall, wherein the separation wall is arranged between the red quantum dot layer and the green quantum dot layer, the separation wall is arranged between the green quantum dot layer and the transparent layer, the separation wall is arranged between the transparent layer and the red quantum dot layer, and the separation wall and the black matrix are overlapped.
Optionally, in some embodiments of the present application, the transparent layer has a refractive index that is greater than both the red quantum dot layer and the green quantum dot layer.
Optionally, in some embodiments of the present application, the tiled display device further includes a sealing layer, and the sealing layer is disposed in the non-display area and fills the gap.
Optionally, in some embodiments of the present application, the tiled display device includes a cover plate and a first polarizer, the cover plate is disposed on the backlight module, the first polarizer is disposed on the cover plate, and the liquid crystal panel is disposed on the first polarizer; the height of the compensation panel is equal to the sum of the heights of the cover plate and the first polarizer.
Optionally, in some embodiments of the present application, the backlight module further includes a light guide plate and a blue light bar, where the blue light bar is disposed on at least one side of the light guide plate; or the backlight module comprises an optical film, a diffusion plate and a blue backlight source, wherein the optical film is arranged on one side of the diffusion plate facing the liquid crystal panel, and the blue backlight source is arranged on one side of the diffusion plate far away from the liquid crystal panel.
The embodiment of the application adopts at least two liquid crystal panels, the at least two liquid crystal panels are spliced, and a gap is formed between every two adjacent liquid crystal panels; the liquid crystal panel comprises a non-display area and a display area, wherein the non-display area is arranged on at least one side of the display area; the liquid crystal panel comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged; the liquid crystal layer is arranged between the first substrate and the second substrate; the second substrate is provided with a grating layer facing the first substrate and corresponding to the non-display area; at least one compensation panel, the compensation panel is arranged in the non-display area of two adjacent liquid crystal panels and shields the gap, and the grating layer is used for weakening the visual characteristics of the compensation panel, so as to reduce the display effect difference between the liquid crystal panels and the compensation panel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic top view of a tiled display device provided in the present application;
fig. 2 is a schematic structural diagram of a tiled display device provided in the present application;
fig. 3 is a schematic structural diagram of a backlight module of a tiled display device according to an embodiment of the present disclosure;
fig. 3a is a schematic view of a light path of a light ray of a tiled display device in a quantum dot conversion film according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of another backlight module of the tiled display device according to the first embodiment of the present application;
fig. 5 is a schematic structural diagram of a quantum dot conversion film of a tiled display device according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a second substrate structure of a tiled display device according to a second embodiment of the present disclosure;
fig. 7 is a schematic diagram of another second substrate structure of the tiled display device according to the second embodiment of the present application;
fig. 8 is a schematic structural diagram of a backlight module of a tiled display device according to a second embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of another backlight module of the tiled display device according to the second embodiment of the present application.
It should be noted that fig. 1 and 2 may be used in the first embodiment or the second embodiment.
Reference numerals illustrate: the display device 100, the liquid crystal panel 10, the slit 20, the non-display area NA, the display area AA, the first substrate 11, the second substrate 12, the liquid crystal layer 13, the grating layer 124, the compensation panel 30, the backlight module 40, the light source 41, the quantum dot conversion film 42, the scattering particles 42a, the red quantum dot layer 421, the green quantum dot layer 422, the transparent layer 423, the substrate 121, the color resist 122, the red resist 122a, the green resist 122b, the blue resist 122c, the black matrix 123, the partition wall 424, the sealing layer 50, the frame glue 51, the cover plate 60, the first polarizer 70, the second polarizer 80, the light guide plate 43, the blue light bar 41a, the blue backlight 41b, and the diffusion plate 44 is assembled.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiment of the application provides a tiled display device, which is described in detail below. The following description of the embodiments is not intended to limit the preferred embodiments.
Embodiment 1,
Referring to fig. 1 and 2, the present embodiment provides a tiled display device 100, which includes at least two liquid crystal panels 10 and at least one compensation panel 30, wherein the at least two liquid crystal panels 10 are tiled, and a gap 20 is provided between two adjacent liquid crystal panels 10. The liquid crystal panel 10 includes a non-display area NA and a display area AA, and the non-display area NA is disposed at least one side of the display area AA. The liquid crystal panel 10 includes a first substrate 11, a second substrate 12, and a liquid crystal layer 13, the first substrate 11 and the second substrate 12 being disposed opposite to each other. The liquid crystal layer 13 is disposed between the first substrate 11 and the second substrate 12. The second substrate 12 is further provided with a grating layer 124 facing the first substrate 11 and corresponding to the non-display area NA. At least one compensation panel 30, the compensation panel 30 is disposed in the non-display area NA of the adjacent two liquid crystal panels 10 and covers the slit 20.
It can be understood that, in the present embodiment, at least two liquid crystal panels 10 are adopted, at least two liquid crystal panels 10 are spliced, and a gap 20 is provided between two adjacent liquid crystal panels 10. The liquid crystal panel 10 includes a non-display area NA and a display area AA, and the non-display area NA is disposed at least one side of the display area AA. The liquid crystal panel 10 includes a first substrate 11, a second substrate 12, and a liquid crystal layer 13, the first substrate 11 and the second substrate 12 being disposed opposite to each other. The liquid crystal layer 13 is disposed between the first substrate 11 and the second substrate 12. The second substrate 12 is further provided with a grating layer 124 facing the first substrate 11 and corresponding to the non-display area NA. At least one compensation panel 30, the compensation panel 30 is disposed in the non-display area NA of the adjacent two liquid crystal panels 10 and covers the slit 20. Wherein the grating layer 124 is used to weaken the visual characteristics of the compensation panel 30, thereby reducing the display effect difference between the liquid crystal panel 10 and the compensation panel 30. It is understood that the tiled display device 100 further includes a second polarizer 80, and the second polarizer 80 is disposed on a surface of the second substrate 12 away from the liquid crystal layer 13.
Referring to fig. 2, 3 and 4, in the present embodiment, the tiled display device 100 further includes a backlight module 40, and the backlight module 40 is disposed on the light incident side of the liquid crystal panel 10; the backlight module 40 further includes a light source 41 and a quantum dot conversion film 42, wherein the quantum dot conversion film 42 is disposed on a side close to the liquid crystal panel 10, and the quantum dot conversion film 42 is further doped with scattering particles 42a.
Referring to fig. 3a, it can be understood that in the present embodiment, by doping the quantum dot conversion film 42 with the scattering particles 42a, the viewing angle characteristics of the red, green and blue light are improved, and the viewing angle characteristics of the three colors of light are similar, and the viewing angle characteristics of the compensation panel 30 near the gap are similar, so as to achieve the purpose of improving the display effect of the whole tiled display device 100. It can be appreciated that the transparent nano-scattering particles 42a can scatter light, so as to improve uniformity of display of the panel, and make viewing angle characteristics of the liquid crystal panel 10 better. The material of the scattering particles 42a includes one or more of cadmium sulfide, zinc sulfide, cadmium cesium, chromium telluride, titanium dioxide, zirconium dioxide, polymethyl methacrylate. The scattering particles 42a are between 0.3 microns and 5 microns in size, including 0.3 microns, 2.6 microns, or 5 microns. The scattering particles 42a are doped with a solids content of between 0.1 and 10, including 0.1, 5 or 10, by mass. Wherein the size of the scattering particles 42a is between 0.3 microns and 5 microns can reduce the difficulty of preparing the quantum dot conversion film 42. For example: when the size of the scattering particles 42a is too large, the film layer is liable to be uneven, and when the size of the scattering particles 42a is too small, the effect of the scattering particles 42a is not remarkable. Wherein the mass percentage of the doped solid content of the scattering particles 42a is between 0.1 and 10, which can effectively ensure the scattering effect of the scattering particles 42a and prevent the light from penetrating the transparent layer 423 when the scattering particles 42a are too much.
It is understood that in the present embodiment, the structure of the quantum dot conversion film 42 may also include that shown in fig. 5. The backlight module 40 includes a light source 41 emitting blue light, the quantum dot conversion film 42 includes a red quantum dot layer 421, a green quantum dot layer 422, and a transparent layer 423, and the scattering particles 42a are doped in the transparent layer 423.
It can be appreciated that in the present embodiment, the scattering particles 42a are doped in the transparent layer 423, so that the effect of the scattering particles 42a for scattering light can be improved, and the operating states of the red quantum dot layer 421 and the green quantum dot layer 422 are not disturbed. It should be noted that, the portion of the backlight module 40 corresponding to the non-display area NA does not emit light.
Referring to fig. 3 and 4, in the present embodiment, the backlight module 40 further includes a light guide plate 43 and a blue light bar 41a, wherein the blue light bar 41a is disposed on at least one side of the light guide plate 43; or the backlight module 40 includes an optical film 45, a diffusion plate 44, and a blue backlight 41b, wherein the optical film 45 is disposed on a side of the diffusion plate 44 facing the liquid crystal panel 10, and the blue backlight 41b is disposed on a side of the diffusion plate 44 facing away from the liquid crystal panel 10. The optical film 45 includes one or a combination of several of microprisms, brightness enhancing films, or integrated diffusion films.
It should be noted that, the light emitting devices adopted by the blue light bar 41a and the blue backlight 41b may be sub-millimeter light emitting diodes or micro-scale light emitting diodes.
In this embodiment, the tiled display device 100 further includes a sealing layer 50, and the sealing layer 50 fills the non-display area NA and fills the gap 20.
It can be understood that in this embodiment, the non-display area NA further includes a sealant 51, the sealant 51 is filled in the gap 20 of the non-display area NA, and the sealing layer 50 is further filled in the gap, so as to further enhance the sealing effect of the display device.
Referring to fig. 2, in the present embodiment, the tiled display device 100 includes a cover plate 60 and a first polarizer 70, the cover plate 60 is disposed on the backlight module 40, the first polarizer 70 is disposed on the cover plate 60, and the liquid crystal panel 10 is disposed on the first polarizer 70. The height of the compensation panel 30 is equal to the sum of the heights of the cover plate 60 and the first polarizer 70.
It can be understood that in this embodiment, the surface flatness of the liquid crystal panel 10 is ensured by setting the height of the compensation panel 30 equal to the sum of the heights of the cover plate 60 and the first polarizer 70. It should be noted that the compensation panel 30 may be a sub-millimeter led direct display panel or a micro-scale led direct display panel.
Embodiment II,
Referring to fig. 1 and 2, the present embodiment provides a tiled display device 100, which includes at least two liquid crystal panels 10 and at least one compensation panel 30, wherein the at least two liquid crystal panels 10 are tiled, and a gap 20 is provided between two adjacent liquid crystal panels 10. The liquid crystal panel 10 includes a non-display area NA and a display area AA, and the non-display area NA is disposed at least one side of the display area AA. The liquid crystal panel 10 includes a first substrate 11, a second substrate 12, and a liquid crystal layer 13, the first substrate 11 and the second substrate 12 being disposed opposite to each other. The liquid crystal layer 13 is disposed between the first substrate 11 and the second substrate 12. The second substrate 12 is further provided with a grating layer 124 facing the first substrate 11 and corresponding to the non-display area NA. At least one compensation panel 30, the compensation panel 30 is disposed in the non-display area NA of the adjacent two liquid crystal panels 10 and covers the slit 20.
It can be understood that, in the present embodiment, at least two liquid crystal panels 10 are adopted, at least two liquid crystal panels 10 are spliced, and a gap 20 is provided between two adjacent liquid crystal panels 10. The liquid crystal panel 10 includes a non-display area NA and a display area AA, and the non-display area NA is disposed at least one side of the display area AA. The liquid crystal panel 10 includes a first substrate 11, a second substrate 12, and a liquid crystal layer 13, the first substrate 11 and the second substrate 12 being disposed opposite to each other. The liquid crystal layer 13 is disposed between the first substrate 11 and the second substrate 12. The second substrate 12 is further provided with a grating layer 124 facing the first substrate 11 and corresponding to the non-display area NA. At least one compensation panel 30, the compensation panel 30 is disposed in the non-display area NA of the adjacent two liquid crystal panels 10 and covers the slit 20. Wherein the grating layer 124 is used to weaken the visual characteristics of the compensation panel 30, thereby reducing the display effect difference between the liquid crystal panel 10 and the compensation panel 30. It is understood that the tiled display device 100 further includes a second polarizer 80, and the second polarizer 80 is disposed on a surface of the second substrate 12 away from the liquid crystal layer 13.
Referring to fig. 8 and 9, in the present embodiment, the tiled display device 100 further includes a backlight module 40, and the backlight module 40 is disposed on the light incident side of the liquid crystal panel 10. The backlight module 40 provides a blue light source for the liquid crystal panel 10. Referring to fig. 6 and 7, the second substrate 12 includes a substrate 121, a plurality of color resistors 122 and a quantum dot conversion film 42, the plurality of color resistors 122 are disposed on a side of the substrate 121 near the first substrate 11, and the quantum dot conversion film 42 is disposed on a side of the plurality of color resistors 122 near the first substrate 11. The plurality of color resistors 122 includes a red color resistor 122a, a green color resistor 122b and a blue color resistor 122c, and the red color resistor 122a, the green color resistor 122b and the blue color resistor 122c correspond to the display area AA. The quantum dot conversion film 42 includes a red quantum dot layer 421, a green quantum dot layer 422, and a transparent layer 423, the red quantum dot layer 421 corresponds to the red resistance 122a, the green quantum dot layer 422 corresponds to the green resistance 122b, and the transparent layer 423 corresponds to the blue resistance 122c. Referring to fig. 6, the blue resistor 122c is doped with the scattering particles 42a or referring to fig. 7, and the transparent layer 423 is doped with the scattering particles 42a.
It is understood that in the present embodiment, the scattering angle of blue light can be increased by doping the scattering particles 42a in the blue resist 122c or doping the scattering particles 42a in the transparent layer 423. It should be noted that, the portion of the backlight module 40 corresponding to the non-display area NA does not emit light.
In the present embodiment, the refractive index of the transparent layer 423 is the same as the refractive indices of the red quantum dot layer 421 and the green quantum dot layer 422.
It can be understood that the refractive index of the material affects the light emitting angle, so that the refractive index of the transparent layer 423 is controlled to be the same as the refractive indexes of the red quantum dot layer 421 and the green quantum dot layer 422, and the light emitting angle can be adjusted only by adjusting the parameters of the scattering particles 42a, so that the transparent film layer can be prepared in a process, the uniformity of the light emitting of the red light, the green light and the blue light can be improved, and the visual characteristics of the liquid crystal panel 10 can be improved. The material of the scattering particles 42a includes one or more of cadmium sulfide, zinc sulfide, cadmium cesium, chromium telluride, titanium dioxide, zirconium dioxide, polymethyl methacrylate. The scattering particles 42a are between 0.3 microns and 5 microns in size, including 0.3 microns, 2.6 microns, or 5 microns. The scattering particles 42a are doped with a solids content of between 0.1 and 10, including 0.1, 5 or 10, by mass. Wherein the size of the scattering particles 42a is between 0.3 microns and 5 microns can reduce the difficulty of preparing the quantum dot conversion film 42. For example: when the size of the scattering particles 42a is too large, the film layer is liable to be uneven, and when the size of the scattering particles 42a is too small, the effect of the scattering particles 42a is not remarkable. Wherein the mass percentage of the doped solid content of the scattering particles 42a is between 0.1 and 10, which can effectively ensure the scattering effect of the scattering particles 42a and prevent the light from penetrating the transparent layer 423 when the scattering particles 42a are too much.
Optionally, in some embodiments, the transparent layer 423 has a refractive index that is greater than both the red quantum dot layer 421 and the green quantum dot layer 422.
It can be appreciated that, since the red quantum dot layer 421 and the green quantum dot layer 422 have the ability to scatter light, the light passing through the red quantum dot layer 421 and the green quantum dot layer 422 may become more emitted. Therefore, the refractive index of the transparent layer 423 is larger than that of the red quantum dot layer 421 and the green quantum dot layer 422, so that the light passing through the transparent layer 423 can have more emergent angles, thereby improving the display characteristics of the liquid crystal panel 10. And does not change the light transmission effect of the original transparent layer 423
Referring to fig. 6 and 7, in the present embodiment, the second substrate 12 further includes a black matrix 123 disposed in the display area AA, and the black matrix 123 is disposed between the color resistors 122. The quantum dot conversion film 42 further includes a partition wall 424, the partition wall 424 is disposed between the red quantum dot layer 421 and the green quantum dot layer 422, the partition wall 424 is disposed between the green quantum dot layer 422 and the transparent layer 423, the partition wall 424 is disposed between the transparent layer 423 and the red quantum dot layer 421, and the partition wall 424 is disposed overlapping the black matrix 123.
It can be understood that in this embodiment, the quantum dot conversion film 42 further includes a separation wall 424, where the separation wall 424 is disposed between the red quantum dot layer 421 and the green quantum dot layer 422, the separation wall 424 is disposed between the green quantum dot layer 422 and the transparent layer 423, and the separation wall 424 is disposed between the transparent layer 423 and the red quantum dot layer 421, and the separation wall 424 is overlapped with the black matrix 123, which can effectively prevent crosstalk between light rays and improve display effects.
In this embodiment, the tiled display device 100 further includes a sealing layer 50, and the sealing layer 50 fills the gap 20 and is disposed in the non-display area NA.
It can be understood that in this embodiment, the non-display area NA further includes a sealant 51, the sealant 51 is filled in the gap 20 of the non-display area NA, and the sealing layer 50 is further filled in the gap, so as to further enhance the sealing effect of the display device.
Referring to fig. 2, in the present embodiment, the tiled display device 100 includes a cover plate 60 and a first polarizer 70, the cover plate 60 is disposed on the backlight module 40, the first polarizer 70 is disposed on the cover plate 60, and the liquid crystal panel 10 is disposed on the first polarizer 70. The height of the compensation panel 30 is equal to the sum of the heights of the cover plate 60 and the first polarizer 70.
It can be understood that in this embodiment, the surface flatness of the liquid crystal panel 10 is ensured by setting the height of the compensation panel 30 equal to the sum of the heights of the cover plate 60 and the first polarizer 70. It should be noted that the compensation panel 30 may be a sub-millimeter led direct display panel or a micro-scale led direct display panel.
The foregoing has described in detail a tiled display device provided by the embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing examples are provided to assist in understanding the methods and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (10)
1. A tiled display device, comprising:
at least two liquid crystal panels are spliced, and a gap is formed between every two adjacent liquid crystal panels; the liquid crystal panel comprises a non-display area and a display area, and the non-display area is arranged on at least one side of the display area; the liquid crystal panel comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged; the liquid crystal layer is arranged between the first substrate and the second substrate; the second substrate is provided with a grating layer on one surface facing the first substrate and corresponds to the non-display area;
and the compensation panel is arranged in the non-display areas of the two adjacent liquid crystal panels and shields the gap.
2. The tiled display device of claim 1, further comprising a backlight module disposed on an light entrance side of the liquid crystal panel; the backlight module further comprises a light source and a quantum dot conversion film, wherein the quantum dot conversion film is arranged on one side close to the liquid crystal panel, and scattering particles are doped in the quantum dot conversion film.
3. The tiled display device according to claim 2, wherein the backlight module comprises a blue light emitting light source, the quantum dot conversion film comprises a red quantum dot layer, a green quantum dot layer, and a transparent layer, the scattering particles being doped in the transparent layer.
4. The tiled display device of claim 1, further comprising a backlight module disposed on an light entrance side of the liquid crystal panel; the backlight module is used for providing a blue light source for the liquid crystal panel;
the second substrate comprises a substrate, a plurality of color resistors and a quantum dot conversion film, the plurality of color resistors are arranged on one side of the substrate close to the first substrate, and the quantum dot conversion film is arranged on one side of the plurality of color resistors close to the first substrate;
the plurality of color resistors includes a red color resistor, a green color resistor, and a blue color resistor, and the red color resistor, the green color resistor, and the blue color resistor correspond to the display area;
the quantum dot conversion film comprises a red quantum dot layer, a green quantum dot layer and a transparent layer, wherein the red quantum dot layer corresponds to the red resistor, the green quantum dot layer corresponds to the green resistor, and the transparent layer corresponds to the blue resistor;
wherein the blue color resistor is internally doped with scattering particles or the transparent layer is internally doped with scattering particles.
5. The tiled display arrangement according to claim 4, wherein the refractive index of the transparent layer is the same as the refractive index of the red quantum dot layer and the green quantum dot layer.
6. The tiled display arrangement according to claim 5, wherein the second substrate further comprises a black matrix disposed in the display area, the black matrix being disposed between the color resistors; the quantum dot conversion film further comprises a separation wall, wherein the separation wall is arranged between the red quantum dot layer and the green quantum dot layer, the separation wall is arranged between the green quantum dot layer and the transparent layer, the separation wall is arranged between the transparent layer and the red quantum dot layer, and the separation wall and the black matrix are overlapped.
7. The tiled display arrangement according to claim 4, wherein the transparent layer has a refractive index that is greater than both the red quantum dot layer and the green quantum dot layer.
8. The tiled display device of claim 1, further comprising a sealing layer filling the gap disposed in the non-display area.
9. The tiled display device according to claim 1, wherein the tiled display device comprises a cover plate and a first polarizer, the cover plate is disposed on the backlight module, the first polarizer is disposed on the cover plate, and the liquid crystal panel is disposed on the first polarizer; the height of the compensation panel is equal to the sum of the heights of the cover plate and the first polarizer.
10. The tiled display arrangement according to any of claims 2-9, wherein the backlight module further comprises a light guide plate and a blue light bar, the blue light bar being arranged on at least one side of the light guide plate; or the backlight module comprises an optical film, a diffusion plate and a blue backlight source, wherein the optical film is arranged on one side of the diffusion plate facing the liquid crystal panel, and the blue backlight source is arranged on one side of the diffusion plate far away from the liquid crystal panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210752065.6A CN115294879B (en) | 2022-06-28 | 2022-06-28 | Spliced display device |
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| CN202210752065.6A CN115294879B (en) | 2022-06-28 | 2022-06-28 | Spliced display device |
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| CN115294879B true CN115294879B (en) | 2023-06-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572959A (en) * | 2016-03-01 | 2016-05-11 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display device |
| CN105974666A (en) * | 2016-07-07 | 2016-09-28 | 京东方科技集团股份有限公司 | Display device |
| CN110426890A (en) * | 2019-07-29 | 2019-11-08 | 昆山龙腾光电有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN114038340A (en) * | 2021-11-29 | 2022-02-11 | 深圳市华星光电半导体显示技术有限公司 | Splicing display device and splicing display screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101860935B1 (en) * | 2012-03-15 | 2018-05-25 | 삼성디스플레이 주식회사 | Liquid crystal display device and manufacturing method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572959A (en) * | 2016-03-01 | 2016-05-11 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display device |
| CN105974666A (en) * | 2016-07-07 | 2016-09-28 | 京东方科技集团股份有限公司 | Display device |
| CN110426890A (en) * | 2019-07-29 | 2019-11-08 | 昆山龙腾光电有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN114038340A (en) * | 2021-11-29 | 2022-02-11 | 深圳市华星光电半导体显示技术有限公司 | Splicing display device and splicing display screen |
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