CN115032809A - Liquid crystal splicing large screen compatible with 2D and 3D display and preparation method of large screen - Google Patents
Liquid crystal splicing large screen compatible with 2D and 3D display and preparation method of large screen Download PDFInfo
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- CN115032809A CN115032809A CN202210786109.7A CN202210786109A CN115032809A CN 115032809 A CN115032809 A CN 115032809A CN 202210786109 A CN202210786109 A CN 202210786109A CN 115032809 A CN115032809 A CN 115032809A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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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
- G02F1/133502—Antiglare, refractive index matching layers
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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
- G02F1/133528—Polarisers
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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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
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- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
The invention discloses a liquid crystal spliced large screen compatible with 2D and 3D display and a preparation method of the large screen, belongs to the technical field of 3D display, and aims to solve the problem that the 3D display of the existing liquid crystal spliced screen cannot compatibly display 2D by adopting a cylindrical lens light splitting technology. The liquid crystal splicing screen 400 comprises a liquid crystal splicing screen 400, 1/2 phase difference layers 104 and 1/4 phase difference layers 105, a linear polarization layer is arranged on the light emitting side of the liquid crystal splicing screen 400, the resolution of a pixel matrix of the liquid crystal splicing screen 400 is controlled by halving, passive 3D imaging output is realized on the linear polarization layer side of the liquid crystal splicing screen 400 by arranging the 1/2 phase difference layers 104 and the 1/4 phase difference layers 105, and the included angle between the 1/4 phase difference layers 105 and the light transmitting direction of the linear polarization layer of the liquid crystal splicing screen 400 is 45 degrees or minus 45 degrees. The 2D film source is watched by normal naked eyes, and the 3D image can be watched by wearing 3D glasses.
Description
Technical Field
The invention belongs to the technical field of 3D display.
Background
In the large-screen display technology, the LED screen and the liquid crystal spliced screen occupy a half-wall river mountain, and are still the mainstream of market development at present. And the LED display screen still has no advantages when being compared with the liquid crystal spliced screen. The reason is that the LED is composed of the lamp beads which are self-luminous one by one, the resolution ratio is related to the physical structure of the LED lamp beads, the granular sensation is strong when the LED is watched, the smaller the point distance is, the higher the manufacturing cost is, and the manufacturing cost is more than 3 times of that of a liquid crystal splicing screen. Compared with an LED (light emitting diode), the liquid crystal spliced screen has higher resolution ratio and clearer image display, but 3D display is realized on the liquid crystal spliced screen mainly through a mainstream cylindrical lens light splitting technology, and the technology determines that the liquid crystal spliced screen cannot be compatible with 2D when the 3D display is realized, so that an application scene with high requirement on the definition of the liquid crystal spliced screen is limited.
The 3D display technical scheme of a large screen is urgently needed, 3D display can be achieved, 2D display is not affected, and meanwhile the problems of high LED granular sensation, low definition, low cost and high manufacturing cost at present can be solved.
Disclosure of Invention
The invention provides a liquid crystal splicing large screen compatible with 2D and 3D display and a preparation method of the large screen, aiming at the problem that the 3D display of the existing liquid crystal splicing screen cannot compatibly display 2D by adopting a cylindrical lens light splitting technology.
The invention relates to a large spliced liquid crystal screen compatible with 2D and 3D display, which comprises a spliced liquid crystal screen 400, an 1/2 phase difference layer 104 and a 1/4 phase difference layer 105, wherein a linear polarization layer is arranged on the light-emitting side of the spliced liquid crystal screen 400, the resolution of a pixel matrix of the spliced liquid crystal screen 400 is controlled by halving, passive 3D imaging output is realized on the linear polarization layer side of the spliced liquid crystal screen 400 by arranging a 1/2 phase difference layer 104 and a 1/4 phase difference layer 105, and the included angle between the 1/4 phase difference layer 105 and the light-transmitting direction of the linear polarization layer of the spliced liquid crystal screen 400 is 45 degrees or-45 degrees.
Preferably, the pixel matrix resolution halving control mode of the liquid crystal tiled screen 400 is as follows:
adopting an interlaced sub-pixel effective control mode, setting a row of sub-pixels as effective sub-pixels 101, and setting adjacent rows of sub-pixels as ineffective sub-pixels 102;
or the alternate column sub-pixel effective control mode is adopted, one column of sub-pixels is set as the effective sub-pixels 101, and the adjacent column of sub-pixels is set as the ineffective sub-pixels 102.
Preferably, the 1/2 retardation layer 104 is composed of active areas and inactive areas arranged alternately:
when the pixel matrix of the liquid crystal spliced screen 400 adopts an interlaced sub-pixel effective control mode, the 1/2 phase difference layer 104 is formed by alternately arranging effective lines A and ineffective lines B with equal width, the effective lines A and the ineffective lines B respectively just cover one line of effective sub-pixels 101, the pitch of a group of 1/2 phase difference layers 104 is 4 lines of sub-pixels, and the boundaries are respectively at the central lines of the two lines of ineffective sub-pixels;
when the pixel matrix of the liquid crystal spliced screen 400 adopts a column-separated sub-pixel effective control mode, the 1/2 phase difference layer 104 is formed by alternately arranging effective columns C and ineffective columns D with equal widths, the effective columns C and the ineffective columns D respectively face and cover one column of effective sub-pixels 101, the pitch of one group of 1/2 phase difference layers 104 is 4 columns of sub-pixels, and the boundaries are respectively at the central lines of the two columns of ineffective sub-pixels.
Preferably, the anti-dazzle layer 200 is further included, and the anti-dazzle layer 200 is arranged on the light outgoing side of the 1/2 phase difference layer 104 or 1/4 phase difference layer 105.
On the other hand, the preparation method of the liquid crystal splicing large screen comprises the following steps:
a1, attaching a 1/4 phase difference layer 105 to the light emergent side of the linear polarization layer of the liquid crystal spliced screen 400 in an opposite mode;
a2, aligning and attaching the 1/2 phase difference layer 104 on the light-emitting side surface of the 1/4 phase difference layer 105;
the 1/2 phase difference layer 104 has an active area spanning 3 sub-pixels and has a width equal to the center distance between two adjacent inactive pixels;
a3, forming a uniformization layer 103 on the light exit side of 1/2 retardation layer 104;
and A4, forming an anti-dazzle layer 200 on the surface of the homogenization layer 103, and finishing the preparation of the liquid crystal splicing large screen compatible with 2D and 3D display.
On the other hand, the preparation method of the liquid crystal splicing large screen comprises the following steps:
b1, forming an anti-glare layer 200 on the light exit side surface of the 1/4 retardation layer 105;
b2, aligning and laminating a 1/2 phase difference layer 104 on the surface of the light inlet side of the 1/4 phase difference layer 105 to prepare a 3D unit;
the 1/2 phase difference layer 104 has an active area spanning 3 sub-pixels and has a width equal to the center distance between two adjacent inactive pixels;
b3, the 3D unit is counterpointed and laminated on the LCD splicing screen 400, and the principle of counterpointing and laminating is as follows: and the 1/2 phase difference layer 104 in the 3D unit is aligned with the pixel matrix of the liquid crystal spliced screen 400, so that the preparation of the liquid crystal spliced large screen compatible with 2D and 3D display is completed.
The invention has the beneficial effects that: 1. the polarization display is realized on the liquid crystal spliced screen, the polarization layer on the surface of the liquid crystal spliced screen is completely utilized, and the material thickness is saved; 2. the technical scheme of halving the line or column resolution is adopted on the liquid crystal spliced screen, the technical problem of realizing the process of small-pitch 1/2 phase difference pitch is solved on the process of realizing 1/2 phase difference, and the mass production is facilitated.
Drawings
FIG. 1 is a schematic diagram of a row pixel halving for a line output display of a large LCD panel;
FIG. 2 is a schematic diagram of column pixel halving in a liquid crystal tiled large screen column output display;
FIG. 3 is a schematic diagram of alignment between 1/2 retardation films and row pixels when a large-screen line output display is spliced by liquid crystals;
FIG. 4 is a schematic diagram of alignment between 1/2 retardation films and column pixels in a large-screen column output display of liquid crystal splicing;
FIG. 5 is a schematic view of a method for manufacturing a large panel according to a second embodiment;
fig. 6 is a schematic diagram of a method for manufacturing a large screen according to a third embodiment.
101. The liquid crystal display panel comprises effective sub-pixels, 102, ineffective sub-pixels, 103, a homogenization layer, 104, 1/2 phase difference layers, 105, 1/4 phase difference layers, 200, an anti-dazzle layer, 400 and a liquid crystal spliced screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The first specific implementation way is as follows: the following describes the present embodiment with reference to fig. 1 to 5, and the liquid crystal tiled large screen compatible with 2D and 3D display according to the present embodiment includes a liquid crystal tiled screen 400, 1/2 phase difference layers 104 and 1/4 phase difference layers 105, a linear polarization layer is disposed on a light exit side of the liquid crystal tiled screen 400, a pixel matrix resolution of the liquid crystal tiled screen 400 is halved, passive 3D imaging output is realized by disposing 1/2 phase difference layers 104 and 1/4 phase difference layers 105 on the linear polarization layer side of the liquid crystal tiled screen 400, and a light transmission direction included angle between the 1/4 phase difference layers 105 and the linear polarization layers of the liquid crystal tiled screen 400 is 45 ° or-45 °.
The pixel matrix resolution halving control mode of the liquid crystal tiled screen 400 is as follows:
an interlaced sub-pixel effective control mode is adopted, one row of sub-pixels are set as effective sub-pixels 101, and adjacent rows of sub-pixels are set as ineffective sub-pixels 102;
or the alternate column sub-pixel effective control mode is adopted, one column of sub-pixels is set as the effective sub-pixels 101, and the adjacent column of sub-pixels is set as the ineffective sub-pixels 102.
1/2 the phase difference layer 104 is composed of active and inactive areas arranged alternately:
when the pixel matrix of the liquid crystal spliced screen 400 adopts an interlaced sub-pixel effective control mode, the 1/2 phase difference layer 104 is formed by alternately arranging effective lines A and ineffective lines B with equal width, the effective lines A and the ineffective lines B respectively just cover one line of effective sub-pixels 101, the pitch of a group of 1/2 phase difference layers 104 is 4 lines of sub-pixels, and the boundaries are respectively at the central lines of the two lines of ineffective sub-pixels;
when the pixel matrix of the liquid crystal spliced screen 400 adopts an alternate column sub-pixel effective control mode, the 1/2 phase difference layer 104 is formed by alternately arranging effective columns C and ineffective columns D with equal widths, the effective columns C and the ineffective columns D respectively just cover one column of effective sub-pixels 101, the pitch of one group of 1/2 phase difference layers 104 is 4 columns of sub-pixels, and the boundaries are respectively at the central lines of the two columns of ineffective sub-pixels.
Further, the liquid crystal display device further comprises an anti-dazzle layer 200, wherein the anti-dazzle layer 200 is arranged on the light outgoing side of the 1/2 phase difference layer 104 or the 1/4 phase difference layer 105.
The liquid crystal splicing screen performs image interval arrangement display through a 3D splicer in 3D use, namely, when interlacing is adopted, the line output resolution is halved, as shown in figure 1; with alternate columns, the column output resolution is halved as shown in FIG. 2. The 1/4 phase difference layer 105 forms an included angle of 45 degrees or-45 degrees with the linear polarization layer of the liquid crystal spliced screen 400. The 1/2 phase difference layers 104 are arranged at equal intervals, and the pitch width is 4 times of the row pixels or the column pixels of the liquid crystal splicing screen.
Referring to fig. 5, an image output by the liquid crystal tiled display 400 outputs linearly polarized light through the linear polarization layer on the light exit side, outputs circularly polarized light through the 1/4 phase difference layer 105, outputs alternately arranged left-handed and right-handed optical rotations through the 1/2 phase difference layer 104, and a viewer can view a 3D image by wearing 3D glasses. If the 2D image is watched, only a 2D film source needs to be played and the image is watched by naked eyes, and half of resolution loss is caused.
The liquid crystal panel has high resolution, and if the resolution is matched with the high resolution, the widths of the effective line/column and the ineffective line/column of the 1/2 phase difference layer 104 are extremely small, the width is too small to be suitable for 3D display, the resolution of the LED is generally low, the optical element commonly used in the 3D display is the 1/2 phase difference layer, and in the recognition of the technical personnel in the field, the widths of the effective line/column and the ineffective line/column of the 1/2 phase difference layer 104 are not enough to be matched with the high resolution of the liquid crystal, so that no one can apply the optical element to the 3D display of the liquid crystal panel.
According to the liquid crystal display, the 1/2 phase difference layer 104 is applied to 3D display of the liquid crystal screen at the expense of resolution, firstly, the resolution of the liquid crystal screen is high enough, the output image quality is still higher than that of an LED display effect even if half of the resolution is sacrificed, granular sensation is completely avoided, secondly, 2D display is not influenced after the 1/2 phase difference layer 104 and the 1/4 phase difference layer 105 are applied, and the purposes of large screen, compatibility of 2D and 3D display and low cost are achieved.
In a specific embodiment, taking a 55-inch 2 × 2 tiled screen as an example, the original pixel dot pitch is 0.63mm, and a process of halving the line or column resolution is adopted, so that the 1/2 phase difference pitch can be set to 1.26mm, and the total resolution of the 2 × 2 tiled screen is 3840 × 2160; the resolution when realizing 3D output becomes 1920 × 2160 or 3840 × 1080, and the requirement can still be satisfied.
The second embodiment is as follows: the embodiment is described below with reference to fig. 5, and the method for manufacturing a large screen is implemented based on the liquid crystal tiled large screen compatible with 2D and 3D displays in the first embodiment, and includes the following steps:
a1, attaching a 1/4 phase difference layer 105 to the light emergent side of the linear polarization layer of the liquid crystal spliced screen 400 in an opposite mode;
a2, aligning and attaching the 1/2 phase difference layer 104 on the light-emitting side surface of the 1/4 phase difference layer 105;
the 1/2 phase difference layer 104 has an active area spanning 3 sub-pixels and a width equal to the center distance between two adjacent inactive sub-pixels;
a3, forming a uniformization layer 103 on the light exit side of 1/2 retardation layer 104;
and A4, forming an anti-dazzle layer 200 on the surface of the homogenization layer 103, and finishing the preparation of the liquid crystal splicing large screen compatible with 2D and 3D display.
The third concrete implementation mode: the embodiment is described below with reference to fig. 6, and the method for manufacturing a large screen is implemented based on the liquid crystal tiled large screen compatible with 2D and 3D displays in the first embodiment, and includes the following steps:
b1, forming an anti-glare layer 200 on the light exit side surface of the 1/4 retardation layer 105;
b2, aligning and laminating a 1/2 phase difference layer 104 on the surface of the light inlet side of the 1/4 phase difference layer 105 to prepare a 3D unit;
the 1/2 phase difference layer 104 has an active area spanning 3 sub-pixels and a width equal to the center distance between two adjacent inactive sub-pixels;
b3, the 3D unit is counterpointed and laminated on the LCD splicing screen 400, and the principle of counterpointing and laminating is as follows: and the 1/2 phase difference layer 104 in the 3D unit is aligned with the pixel matrix of the liquid crystal spliced screen 400, so that the preparation of the liquid crystal spliced large screen compatible with 2D and 3D display is completed.
The preparation process of the embodiment is faster than that of the second embodiment, the 3D unit can be prepared in advance, and then the first unit is uniformly aligned and attached to the liquid crystal splicing screen 400, so that the process step is divided into two blocks, and the control is easy.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (6)
1. The utility model provides a big screen of liquid crystal concatenation that compatible 2D and 3D show, a serial communication port, including liquid crystal concatenation screen (400), 1/2 phase difference layer (104) and 1/4 phase difference layer (105), liquid crystal concatenation screen (400) light-emitting side sets up the linear polarization layer, the pixel matrix resolution of liquid crystal concatenation screen (400) is halved and is controlled, the passive form factor 3D of formation of image is realized through setting up 1/2 phase difference layer (104) and 1/4 phase difference layer (105) on the linear polarization layer side of liquid crystal concatenation screen (400), the printing opacity direction contained angle of 1/4 phase difference layer (105) and the linear polarization layer of liquid crystal concatenation screen (400) is 45 or-45.
2. The large liquid crystal tiled screen compatible with 2D and 3D display according to claim 1, wherein the pixel matrix resolution of the liquid crystal tiled screen (400) is halved by:
an interlaced sub-pixel effective control mode is adopted, one row of sub-pixels are set as effective sub-pixels (101), and adjacent rows of sub-pixels are set as ineffective sub-pixels (102);
or the alternate column sub-pixel effective control mode is adopted, one column of sub-pixels are set as effective sub-pixels (101), and the adjacent column of sub-pixels are set as ineffective sub-pixels (102).
3. The large spliced LCD screen compatible with 2D and 3D display as claimed in claim 2, wherein the 1/2 phase difference layer (104) is composed of active and inactive areas arranged alternately:
when a pixel matrix of the liquid crystal spliced screen (400) adopts an interlaced sub-pixel effective control mode, the 1/2 phase difference layer (104) is formed by alternately arranging effective lines A and ineffective lines B with equal widths, the effective lines A and the ineffective lines B respectively just cover one line of effective sub-pixels (101), the pitch of one group of 1/2 phase difference layers (104) is 4 lines of sub-pixels, and the boundaries are respectively at the central lines of two lines of ineffective sub-pixels;
when the pixel matrix of the liquid crystal spliced screen (400) adopts an effective control mode of every two columns of sub-pixels, the 1/2 phase difference layer (104) is formed by alternately arranging effective columns C and ineffective columns D with equal widths, the effective columns C and the ineffective columns D respectively just face and cover one column of effective sub-pixels (101), the pitch of one group of 1/2 phase difference layers (104) is 4 columns of sub-pixels, and the boundaries are respectively in the middle lines of the two columns of ineffective sub-pixels.
4. The large spliced liquid crystal display screen compatible with 2D and 3D displays as claimed in any one of claims 1 to 3, further comprising an anti-glare layer (200), wherein the anti-glare layer (200) is arranged on the light-emitting side of the 1/2 phase difference layer (104) or the 1/4 phase difference layer (105).
5. A method for preparing a liquid crystal splicing large screen, which is realized based on the liquid crystal splicing large screen compatible with 2D and 3D display in claim 4, is characterized by comprising the following steps:
a1, attaching a 1/4 phase difference layer (105) in an opposite direction on the light emergent side of a linear polarization layer of the liquid crystal spliced screen (400);
a2, attaching a 1/2 phase difference layer (104) on the light-emitting side surface of the 1/4 phase difference layer (105) in an aligned mode;
the active area of the 1/2 phase difference layer (104) spans 3 sub-pixels and has a width equal to the center distance of two adjacent invalid pixels;
a3, forming a uniformization layer (103) on the light exit side of the 1/2 retardation layer (104);
a4, forming an anti-dazzle layer (200) on the surface of the uniformizing layer (103), and finishing the preparation of the liquid crystal splicing large screen compatible with 2D and 3D display.
6. A method for preparing a liquid crystal splicing large screen, which is realized based on the liquid crystal splicing large screen compatible with 2D and 3D display in claim 4, is characterized by comprising the following steps:
b1, forming an anti-dazzle layer (200) on the light-emitting side surface of the 1/4 phase difference layer (105);
b2, aligning and combining the 1/2 phase difference layer (104) on the light inlet side surface of the 1/4 phase difference layer (105) to prepare a 3D unit;
the active area of the 1/2 phase difference layer (104) spans 3 sub-pixels and has a width equal to the center distance of two adjacent invalid pixels;
b3, the 3D unit is attached to the liquid crystal splicing screen (400) in an alignment mode, and the principle of the alignment attachment is as follows: and the 1/2 phase difference layer (104) in the 3D unit is aligned with the pixel matrix of the liquid crystal spliced screen (400), so that the preparation of the liquid crystal spliced large screen compatible with 2D and 3D display is completed.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115032809B (en) * | 2022-07-04 | 2023-08-08 | 杭州大昱光电科技有限公司 | Liquid crystal spliced large screen compatible with 2D and 3D display and large screen preparation method |
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