CN113467124A - Spliced screen and preparation process thereof - Google Patents
Spliced screen and preparation process thereof Download PDFInfo
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- CN113467124A CN113467124A CN202110754584.1A CN202110754584A CN113467124A CN 113467124 A CN113467124 A CN 113467124A CN 202110754584 A CN202110754584 A CN 202110754584A CN 113467124 A CN113467124 A CN 113467124A
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- liquid crystal
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- circuit board
- flexible circuit
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- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 73
- 230000003287 optical effect Effects 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- 239000011521 glass Substances 0.000 claims description 94
- 239000000758 substrate Substances 0.000 claims description 38
- 238000009792 diffusion process Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 4
- 239000012788 optical film Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 35
- 239000003292 glue Substances 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000001795 light effect Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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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
- G02F1/13336—Combining plural substrates to produce large-area displays, e.g. tiled 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133311—Environmental protection, e.g. against dust or humidity
Abstract
The invention discloses a spliced screen and a preparation process thereof, relating to the technical field of display, wherein the preparation process comprises the following steps: obtain liquid crystal glazing and optical module, decide the steric hindrance light zone, arrange light blocking part, whole equipment and arrange the protection part, the technology principle lies in realizing liquid crystal display unit leak protection light effect through setting up light blocking part and protection part, avoid adopting the scheme that adopts the shading to glue the leak protection light among the prior art, light blocking part and protection part simple structure, need not additionally to increase production facility and wait for the solidification flow, consequently, whole concatenation screen production technology flow does not excessively increase, maintenance, also easy operation when the breakdown maintenance is dismantled.
Description
Technical Field
The invention relates to the technical field of display, in particular to a spliced screen and a preparation process thereof.
Background
The spliced screen is a complete liquid crystal spliced display unit, can be used as a display independently, and can be used by being spliced to form an ultra-large screen. According to different use requirements, single-screen split display, single-screen independent display, random combined display, full-screen liquid crystal splicing and vertical screen display are realized, and the image frame can be selectively compensated or covered.
In terms of the current market, a light, thin and ultra-narrow frame is the mainstream form of the current spliced screen market. In the design of concatenation screen liquid crystal display panel, because the adjacent both sides of liquid crystal glazing are provided with COF (chip on film) flexible circuit board drift, press from both sides liquid crystal glazing's upper and lower two-layer glass substrate, upper glass substrate is less than lower floor's glass substrate, the specification is between the millimeter, be used for carrying on COF flexible circuit board drift, the light that the lamp pearl was dispersed on the liquid crystal display unit backplate module shines can be dispersed when the part that lower floor's glass substrate was not covered by upper glass substrate and liquid crystal glazing, the concatenation display unit is based on narrow frame design, the frame is bordured and is not enough to cover this part reverberation of separation, therefore produce the phenomenon of concatenation display unit light leak.
At present, a splicing screen manufacturer mainly adopts a method of injecting a proper amount of shading glue into a cavity formed between a frame edge and liquid crystal glass to seal a frame so as to avoid light leakage, but needs to horizontally place the assembled splicing screen in the production process so as to solidify the glue, so that not only enough workshop space and production time need to be consumed, but also the production cost is increased, and meanwhile, the production needs to additionally purchase gluing machine equipment, and the cost is high. Secondly, the problem of light leakage cannot be completely solved by adopting the method, after the shading glue is cured, a gap between the frame edge and the screen is observed from the front face of the display unit at 45 degrees, and a pixel red line can still be seen between the frame and the screen.
Disclosure of Invention
The invention aims to provide a spliced screen and a preparation process thereof, the preparation process of the spliced screen fully solves the technical problem that the edge covering of the frame of the current spliced screen with an ultra-narrow frame is not enough to cover and block reflected light scattered from liquid crystal glass by arranging a light blocking part in a positioning mode on the basis of direct assembly, avoids adopting a scheme of blocking an adhesive frame, does not need to additionally increase production equipment, and reduces the production cost.
In order to achieve the above purpose, the invention provides the following technical scheme: a manufacturing process of a spliced screen comprises the following steps:
obtaining liquid crystal glass and an optical module;
positioning a light resistance area on the optical module, wherein the light resistance area is positioned at the relative splicing position of the optical module and the non-display area on two adjacent side edges of the liquid crystal glass; the two adjacent side edges are two side edges which are correspondingly arranged at the tail of the COF flexible circuit board of the liquid crystal glass in a drifting manner;
arranging a light-blocking part, wherein the light-blocking part is arranged in the light-blocking area and at least completely shields the non-display areas on the two adjacent sides;
assembling, namely assembling the liquid crystal glass, the optical module with the light-emitting part and the frame wrapping to form a semi-finished spliced screen;
arranging a protection part, arranging the protection part in a cavity formed between the edge covering of the upper frame of the semi-finished spliced screen and the liquid crystal glass, and filling the cavity with the protection part to obtain a spliced screen product.
Further, the liquid crystal glass comprises an upper polarizer, an upper glass substrate, a lower polarizer, a COF flexible circuit board and liquid crystal packaged between the upper glass substrate and the lower glass substrate, wherein the upper polarizer, the upper glass substrate, the lower polarizer and the COF flexible circuit board are sequentially bonded and assembled from top to bottom;
the COF flexible circuit board forms a COF flexible circuit board tail at two adjacent side edges of the liquid crystal glass; the size specification of the upper glass substrate is smaller than that of the lower glass substrate, and the size difference is in millimeter level; the size specification of the liquid crystal is equal to that of the upper glass substrate;
go up glass substrate and glass substrate size difference constitution carry-on station down, COF flexible circuit board whipping carry on this carry-on station.
Further, when the liquid crystal glass is assembled, the polaroids, the upper glass substrate, the lower polaroid and the edges of the COF flexible circuit board are aligned on two adjacent sides of the liquid crystal glass which are not provided with the tail of the COF flexible circuit board, the carrying stations are positioned on two adjacent sides of the COF flexible circuit board which is provided with the tail of the COF flexible circuit board, and the tail of the COF flexible circuit board is carried on the edges of the lower glass substrate of the carrying stations.
Furthermore, the optical module comprises three layers of optical membranes, a diffusion plate and a module section bar which are sequentially assembled from top to bottom, and the three layers of optical membranes are attached to the diffusion plate; the module section bar is close to the side edge of the diffusion plate and extends upwards to the end face, far away from the side end face of the diffusion plate, of the three layers of optical membranes to form an extension part coated on the outer sides of the diffusion plate and the three layers of optical membranes; the extension part is close to the side of the diffusion plate, a right-angle installation station is formed at the bottom of the diffusion plate, the end part of the diffusion plate is matched and arranged in the right-angle installation station, and the three layers of optical membranes abut against the right-angle side of the right-angle installation station.
Further, the light blocking portion is provided as a light blocking tape.
Further, the thickness of the light-blocking part is not more than 0.3 mm.
Furthermore, the protection part is composed of a buffer filler filled in the cavity, and the buffer filler is foam.
The invention also aims to provide the spliced screen which is prepared by the spliced screen preparation process.
The invention also aims to provide a display which adopts the spliced screen.
According to the technical scheme, the technical scheme of the invention has the following beneficial effects:
the invention discloses a spliced screen and a preparation process thereof, relating to the technical field of display, wherein the preparation process comprises the following steps: obtaining liquid crystal glass and an optical module; positioning a light blocking area on the optical module; arranging a light-blocking part on the light-blocking area; assembling the liquid crystal glass, the optical module with the light-blocking part and the frame wrapping to form a semi-finished spliced screen product; arranging a protection part in a cavity formed between the edge of the upper frame of the sample and the liquid crystal glass to obtain a spliced screen product; the light blocking area corresponds to a non-display area on two adjacent sides of the liquid crystal glass, and the two adjacent sides are two sides of a COF flexible circuit board of the liquid crystal glass, which are correspondingly arranged in a way of swinging the tail, so that after the liquid crystal glass is integrally assembled, the light blocking part can completely shield the divergent light of the light blocking area, no light can be discharged from a gap at a position where the liquid crystal glass overflows and is covered with a border, the light irradiated by a direct type lamp source can be blocked, and the technical effect of preventing the light leakage of the liquid crystal display unit by arranging the light blocking part is achieved.
In addition, the protection part can achieve buffer protection on the liquid crystal glass and further block light; since the light blocking part is arranged in the light blocking area corresponding to the non-display area of the liquid crystal glass, the display area of the liquid crystal glass is not affected and the display area is not reduced accordingly.
The preparation process avoids adopting a scheme of adopting the light shading glue to prevent light leakage in the prior art, the light shading part and the protection part have simple structures, and production equipment does not need to be additionally added and a curing process does not need to be waited for, so that the production process flow of the integral spliced screen is not excessively increased; meanwhile, as the liquid crystal glass and the frame wrapping edges and the tail flicking of the COF flexible circuit board are not glued, the operation is simple during maintenance, fault maintenance and disassembly.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of a tiled screen product of the present invention;
FIG. 2 is an exploded cross-sectional view of a tiled screen product of the present invention;
fig. 3 is a sectional view of a portion a of the product of the tiled screen of fig. 2.
In the figure, the specific meaning of each mark is:
the optical module comprises a 1-frame edge, a 2-COF flexible circuit board tail flicking, 3-liquid crystal glass, a 3.1-upper polaroid, a 3.2-upper glass substrate, a 3.3-lower glass substrate, a 3.4-lower polaroid, a 4-optical module, a 4.1-three-layer optical membrane, a 4.2-diffusion plate, a 4.3-module section, a 4.4-extension part and a 5-light blocking part.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises," "comprising," or the like, mean that the elements or items listed before "comprises" or "comprising" encompass the features, integers, steps, operations, elements, and/or components listed after "comprising" or "comprising," and do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly.
The main scheme for solving the problem of light leakage of the spliced screen based on the prior art is to prevent light leakage by a method of punching a proper amount of light-shielding glue sealing frame into a cavity formed between a frame edge and liquid crystal glass, wherein during production and application, on one hand, enough factory space and production time are needed to enable the assembled spliced screen to be horizontally placed until glue is cured, and on the other hand, glue punching equipment needs to be additionally purchased, so that the production cost is obviously increased; meanwhile, the scheme can not completely solve the problem of light leakage, and a pixel red line exists between the edge of the frame and the screen to influence the appearance; the invention aims to provide a spliced screen and a preparation process thereof, and the process achieves the technical effect of solving the problem of overflow and dispersion of irradiated light along liquid crystal glass by directly blocking the light irradiated by an optical module and thoroughly solves the problem of light leakage of the spliced screen.
The following describes the splicing screen and the manufacturing process thereof disclosed by the present invention in detail with reference to the embodiments shown in the drawings.
The embodiment of the invention discloses a preparation process of a spliced screen, which comprises the following five process flows:
obtaining liquid crystal glass 3 and an optical module 4; a light blocking area is positioned on the optical module 4, and is positioned at the relative splicing position of the non-display areas at two adjacent sides of the optical module 4 and the liquid crystal glass 3; the two adjacent sides are two sides of the liquid crystal glass 3 correspondingly arranged on the tail 2 of the COF flexible circuit board; arranging a light-blocking part 5, arranging a light-blocking part 4 in the light-blocking area, wherein the light-blocking part 4 at least completely shields the non-display area on the two adjacent sides; assembling, namely assembling the liquid crystal glass 3, the optical module 4 with the light-emitting part 5 and the frame wrapping 5 to form a semi-finished spliced screen; arranging a protection part, arranging the protection part in a cavity formed between the upper frame edge covering 1 and the liquid crystal glass 3 of the semi-finished spliced screen, and filling the cavity with the protection part to obtain a spliced screen product.
In some embodiments, the liquid crystal glass 3 and the optical module 4 are directly purchased from the outside, so that the process directly enters the step of positioning the light blocking region, that is, the step of positioning the light blocking region on the optical module 4 corresponding to the non-display region on the side of the tail 2 of the COF flexible circuit board on the liquid crystal glass 3, and then enters the flow of arranging the light blocking portion 5, integrally assembling and arranging the protection portion. In some embodiments, the liquid crystal glazing 3 and the optical module 4 are discrete components that require pre-preparation for assembly.
As shown in fig. 1 to fig. 3, the liquid crystal glass 3 includes an upper polarizer 3.1, an upper glass substrate 3.2, a lower glass substrate 3.3, a lower polarizer 3.4, a COF flexible circuit board, and a liquid crystal encapsulated between the upper glass substrate 3.2 and the lower glass substrate 3.3, which are sequentially assembled from top to bottom; the COF flexible circuit board forms a COF flexible circuit board drift 2 on two adjacent side edges of the liquid crystal glass 3; the size specification of the upper glass substrate 3.2 is smaller than that of the lower glass substrate 3.3, the size difference is in millimeter level, and the size difference is used for forming a carrying station of the tail 2 of the COF flexible circuit board; the dimensions of the liquid crystal are equal to the dimensions of the upper glass substrate 3.2 when assembled.
When the liquid crystal glass 3 needs to be prepared and assembled, the upper polaroids 3.1, the upper glass substrates 3.2, the lower glass substrates 3.3, the lower polaroids 3.4 and edges of the COF flexible circuit boards are aligned on two adjacent side edges which are not provided with the COF flexible circuit board drift 2, the carrying stations are positioned on two adjacent side edges which are provided with the COF flexible circuit board drift 2, and the COF flexible circuit board drift 2 is carried on the edges of the lower glass substrates 3.3 of the carrying stations.
In the embodiment, the light blocking portion 5 blocks light emitted from the optical module as a first protection process for preventing light leakage of the tiled screen, and the light blocking portion 5 is made of an insulating base material with light blocking performance, such as a light blocking sheet, a light blocking tape, and a light blocking cloth. In the embodiment shown in the drawings, the light-shielding tape with a certain adhesion effect is selected, the light-shielding tape is pasted along two adjacent sides of the optical module 4, which are close to the liquid crystal glass 3 side and correspond to the tail 2 of the COF flexible circuit board, and the width of the light-shielding tape is generally selected to be equal to the width of the non-display area of the liquid crystal glass 3, so that the display area of the liquid crystal glass 3 is not affected, and the display area is not reduced.
In addition, in the embodiment, in order to avoid that the gap between the liquid crystal glass 3 and the optical module 4 in the semi-finished product of the integrally assembled spliced screen is too large to affect the display effect, the light blocking part 5 should be made of a light blocking material with a smaller thickness on the premise of not affecting the light blocking effect, for example, a light blocking tape should be selected as the light blocking part 5, and the thickness of the light blocking tape should not exceed 0.3mm, for example, a light blocking tape with a thickness of 0.15mm is selected.
In the embodiment shown in the drawing, the frame wrapping edge 1 fixes the module profile 4.3, the COF flexible circuit board tail 2 and the liquid crystal glass 3 from bottom to top along the outer side of the COF flexible circuit board tail 2 away from the liquid crystal glass 3 and the optical module 4, and the upper end of the frame wrapping edge 1 is provided with a flange extending above the liquid crystal glass 3, and the lower surface of the flange is attached to the upper surface of the upper polarizer 3.1. Because the frame edge-covering 1 and the module section bar 4.3 in the assembly structure of the spliced screen are made of aluminum alloy materials generally, after the assembly, due to the structural arrangement of the liquid crystal glass, a cavity is formed between the frame edge-covering 1 and the flanging as well as the liquid crystal glass 3, and when the frame edge-covering 1 deforms, the liquid crystal glass 3 is easily damaged, so that the fifth process arrangement protection part of the preparation process aims at solving the problem and achieving the protection of the liquid crystal glass 3. Specifically, the protection part is composed of a buffer filler filled in the cavity, and the buffer filler selected in the embodiment is foam; the foam realizes buffer protection on the liquid crystal glass 3 on one hand, and further blocks light as a second protection process for preventing light leakage on the other hand.
Another embodiment of the present invention is to provide a spliced screen, as shown in fig. 1, the spliced screen is manufactured by the above-mentioned spliced screen manufacturing process through five process flows of acquiring component parts, determining a light blocking area, arranging a light blocking part, integrally assembling and arranging a protection part; the spliced screen completely solves the problem of light leakage, and after the protection part is arranged, a gap between the frame wrapping edge 1 and the screen is observed at 45 degrees from the front of the display unit, and a pixel red line does not exist. Moreover, the spliced screen product is directly obtained after the protection part is arranged in the manufacturing process, the space and time for statically waiting for glue to be fixed are not required, the production cost is slightly increased, and the production efficiency is greatly improved.
Another embodiment of the present invention is to provide a display, wherein the display employs the above-mentioned tiled screen; the display has excellent display and good universality, and no bright light and light spots appear during display.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. A spliced screen preparation technology is characterized by comprising the following steps:
obtaining liquid crystal glass and an optical module;
positioning a light resistance area on the optical module, wherein the light resistance area is positioned at the relative splicing position of the optical module and the non-display area on two adjacent side edges of the liquid crystal glass; the two adjacent side edges are two side edges which are correspondingly arranged at the tail of the COF flexible circuit board of the liquid crystal glass in a drifting manner;
arranging a light-blocking part, wherein the light-blocking part is arranged in the light-blocking area and at least completely shields the non-display areas on the two adjacent sides;
assembling, namely assembling the liquid crystal glass, the optical module with the light-emitting part and the frame wrapping to form a semi-finished spliced screen;
arranging a protection part, arranging the protection part in a cavity formed between the edge covering of the upper frame of the semi-finished spliced screen and the liquid crystal glass, and filling the cavity with the protection part to obtain a spliced screen product.
2. The spliced screen preparation process of claim 1, wherein the liquid crystal glass comprises an upper polarizer, an upper glass substrate, a lower polarizer and a COF flexible circuit board which are sequentially assembled in a surface-mount manner from top to bottom, and liquid crystal packaged between the upper glass substrate and the lower glass substrate;
the COF flexible circuit board forms a COF flexible circuit board tail at two adjacent side edges of the liquid crystal glass; the size specification of the upper glass substrate is smaller than that of the lower glass substrate, and the size difference is in millimeter level; the size specification of the liquid crystal is equal to that of the upper glass substrate;
go up glass substrate and glass substrate size difference constitution carry-on station down, COF flexible circuit board whipping carry on this carry-on station.
3. The manufacturing process of the spliced screen as claimed in claim 2, wherein during the manufacturing and assembling of the liquid crystal glass, the polarizer, the upper glass substrate, the lower polarizer and the edge of the COF flexible circuit board are aligned on two adjacent sides of the liquid crystal glass which are not provided with the tail part of the COF flexible circuit board, the carrying stations are located on two adjacent sides of the COF flexible circuit board which is provided with the tail part, and the tail part of the COF flexible circuit board is carried on the edge of the lower glass substrate of the carrying station.
4. The spliced screen preparation process according to claim 1, wherein the optical module comprises three layers of optical membranes, a diffusion plate and a module section bar which are sequentially assembled from top to bottom, and the three layers of optical membranes and the diffusion plate are attached to each other; the module section bar is close to the side edge of the diffusion plate and extends upwards to the end face, far away from the side end face of the diffusion plate, of the three layers of optical membranes to form an extension part coated on the outer sides of the diffusion plate and the three layers of optical membranes.
5. The process of making a tiled screen according to claim 4, wherein the extension forms a right angle mounting station at the bottom of the diffuser plate near the diffuser plate side into which the diffuser plate end fits, the three layers of optical films abutting the right angle sides of the right angle mounting station.
6. The process for preparing a spliced screen according to claim 1, wherein the light-blocking part is provided as a light-shielding tape.
7. The process for preparing a spliced screen according to claim 1, wherein the thickness of the light-blocking part is not more than 0.3 mm.
8. The process for preparing a spliced screen according to claim 1, wherein the protective part is composed of a buffer filler filled in the cavity, and the buffer filler is foam.
9. Spliced screen, characterized in that the spliced screen is manufactured by the process for manufacturing a spliced screen according to any one of claims 1 to 8.
10. A display, characterized in that the display comprises the tiled screen of claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110754584.1A CN113467124A (en) | 2021-07-05 | 2021-07-05 | Spliced screen and preparation process thereof |
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| CN202110754584.1A CN113467124A (en) | 2021-07-05 | 2021-07-05 | Spliced screen and preparation process thereof |
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