CN116068795A - Processing method of liquid crystal display screen, liquid crystal display screen and large-format spliced screen - Google Patents
Processing method of liquid crystal display screen, liquid crystal display screen and large-format spliced screen Download PDFInfo
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- CN116068795A CN116068795A CN202310359961.0A CN202310359961A CN116068795A CN 116068795 A CN116068795 A CN 116068795A CN 202310359961 A CN202310359961 A CN 202310359961A CN 116068795 A CN116068795 A CN 116068795A
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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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
Abstract
The application relates to a processing method of a liquid crystal display, the liquid crystal display and a large-format spliced screen. The processing method comprises the following steps: obtaining a display blank by means of gluing, the display blank having a plurality of internal circuits extending to the end face; removing the adhesive layer on the end face to expose a plurality of internal circuits; providing a conductive layer covering a plurality of internal circuits on the end face; the conductive layer is divided into a plurality of mutually independent conductors which are electrically connected with the internal circuits in a one-to-one correspondence manner, and the area of the conductors is larger than that of the internal circuits. In the processing method, a plurality of internal circuits are exposed through removing the adhesive layer covered on the end face, so that the obstruction caused by the adhesive layer to the electric conduction of the two liquid crystal display screens is eliminated, a plurality of mutually independent conductors which are in one-to-one corresponding electric connection with the plurality of internal circuits are formed on the end face, the area of each conductor is larger than that of the internal circuit, the conductors are used as the extension of the internal circuits, and a larger attaching area is provided, so that the electric conduction of the two liquid crystal display screens can be smoothly realized.
Description
Technical Field
The application relates to the technical field of display, in particular to a processing method of a liquid crystal display, the liquid crystal display and a large-format spliced screen.
Background
Currently, for large-format spliced screens, the large-format spliced screens are usually obtained by splicing a plurality of liquid crystal display screens with smaller areas together. When in splicing, the end surfaces of two adjacent liquid crystal display screens are tightly attached, and the internal circuit is electrically conducted, so that the liquid crystal display screens work cooperatively to realize large-format display. However, each layer of structure is connected into a whole through an adhesive mode when the liquid crystal display screen is manufactured, so that the problem that glue overflows to the end face to cover an internal circuit exists, and the internal circuit cannot be smoothly electrically conducted after the two liquid crystal display screens are spliced.
Disclosure of Invention
Based on this, it is necessary to provide a processing method of a liquid crystal display panel capable of solving the above-mentioned problems, and also to provide a liquid crystal display panel obtained by the foregoing processing method, and further to provide a large-format spliced screen having the foregoing liquid crystal display panel.
A processing method of a liquid crystal display screen comprises the following steps:
obtaining a display blank having a multi-layer structure by means of gluing, wherein the display blank has a plurality of internal circuits extending to an end face;
removing the adhesive layer covering the end surfaces to expose a plurality of the internal circuits;
providing a conductive layer covering a plurality of the internal circuits on the end face;
dividing the conductive layer into a plurality of mutually independent conductors which are electrically connected with a plurality of internal circuits in one-to-one correspondence, thereby obtaining a liquid crystal display screen; wherein, on the end face, the area of the conductor is larger than the area of the internal circuit.
In the processing method of the liquid crystal display screen, the plurality of internal circuits are exposed by removing the adhesive layer covered on the end face, so that the obstruction caused by the adhesive layer to realize electric conduction of the two liquid crystal display screens is eliminated.
In one embodiment, in the step of removing the adhesive layer covering each of the internal circuits to expose a plurality of the internal circuits, the end face is cleaned by a laser to remove the adhesive layer covering the end face.
In one embodiment, the laser cleans the end face at a wavelength of 355nm, a power of less than 15W, a scan speed of 1000mm/s to 3000 mm/s.
In one embodiment, in the step of providing a conductive layer covering a plurality of the internal circuits at the end face, the conductive layer is formed by applying silver paste to the end face and after curing.
In one embodiment, the thickness of the conductive layer is 10um to 20um.
In one embodiment, the conductive layer has a conductivity that is superior to the conductivity of the internal circuit.
In one embodiment, the internal circuits are arranged at intervals in a straight line along the extending direction of the length of the end face; the step of dividing the conductive layer into a plurality of mutually independent conductors electrically connected with the internal circuits in a one-to-one correspondence manner, thereby obtaining the liquid crystal display screen comprises the following steps: and dividing the conductive layer by means of laser etching to obtain a plurality of strip-shaped conductors extending in the thickness direction of the liquid crystal display screen, wherein the conductors are in one-to-one correspondence to cover the internal circuits.
In one embodiment, the laser etches the conductive layer at a wavelength of 355nm, a power of less than 15W, a scan speed of 1000mm/s to 3000 mm/s.
A liquid crystal display screen is manufactured by the processing method.
In the liquid crystal display, the glue layer covering the end surfaces is removed to expose the plurality of internal circuits, so that the obstruction caused by the glue layer to realize electric conduction of the two liquid crystal display is eliminated.
The large-format spliced screen comprises a plurality of liquid crystal display screens, wherein the liquid crystal display screens are arranged in an array mode, and one of the liquid crystal display screens is provided with a plurality of conductors which are attached to the other liquid crystal display screen in a one-to-one correspondence mode to be electrically conducted.
Among the above-mentioned large format concatenation screen, the size of single liquid crystal display is less, can be convenient for processing and transportation, and a plurality of liquid crystal display concatenation can obtain the great concatenation screen of area to satisfy the display demand of great area. In the large-format spliced screen, a plurality of conductors of one liquid crystal display screen are bonded with a plurality of conductors of the other liquid crystal display screen in a one-to-one correspondence manner through an end face bonding mode to be electrically conducted, so that internal circuits of the liquid crystal display screens are sequentially conducted and connected in series, and unified and centralized control of the liquid crystal display screens is realized. In addition, each liquid crystal display screen has good electric conduction performance, so that a large-format spliced screen with good electric conduction performance can be obtained after a plurality of liquid crystal display screens are spliced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described 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 flow chart of a processing method of a liquid crystal display according to an embodiment of the present application;
fig. 2 is a schematic diagram of an end face structure of a blank shown in S100 in a flow chart of a processing method of the liquid crystal display panel shown in fig. 1;
fig. 3 is a schematic end view of the blank shown in fig. 2 after performing step S200;
fig. 4 is a schematic diagram of the structure of the end face after the structure shown in fig. 3 performs step S300; a kind of electronic device with high-pressure air-conditioning system
Fig. 5 is a schematic diagram of an end face structure of the lcd panel obtained after the structure shown in fig. 4 performs step S400;
fig. 6 is a schematic diagram showing one-to-one bonding of conductors of the two lcd panels shown in fig. 4 when they are spliced.
Reference numerals illustrate:
100. displaying the blank; 11. a front face; 12. a back surface; 13. an end face; 14. an internal circuit; 15. a glass substrate; 200. a glue layer; 300. a conductive layer; 400. an electric conductor; 500. a liquid crystal display.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1 to 5, the present application provides a processing method of a liquid crystal display 500, which includes the following steps:
s100, a display blank 100 having a multi-layer structure is obtained by means of gluing, wherein the display blank 100 has a plurality of internal circuits 14 extending to the end face 13.
It will be appreciated that for the display blank 100, it includes two glass substrates 15 and a liquid crystal layer (not shown) between the two glass substrates 15 and a plurality of internal circuits 14. The light transmission amount is controlled by changing the deflection direction of liquid crystal molecules in the liquid crystal layer by controlling the voltage levels of the plurality of internal circuits 14. The two glass substrates 15 are stacked and bonded together by glue, so that the internal circuit 14 and the liquid crystal layer are both locked between the two glass substrates 15 by the glue.
It is to be understood that the display blank 100 has a front face 11 in the thickness direction and a rear face 12 provided opposite to the front face 11, so that the two glass substrates 15 serve as the front face 11 and the rear face 12, respectively. Further, the display blank 100 has a peripheral wall surface connected between the front face 11 and the back face 12, and it is understood that the peripheral wall surface is an outer surface around which the display blank 100 surrounds a circle except for the front face 11 and the back face 12. In the present application, the display blank 100 is cube-shaped, such that the front face 11 and the back face 12 are both rectangular, and the remaining four rectangular side faces of the display blank 100 together constitute the peripheral wall face of the display blank 100.
In the present application, the plurality of internal circuits 14 between the two glass substrates 15 extend toward the peripheral wall surface, so that one or more rectangular side surfaces in the peripheral wall surface have the internal circuits 14. In the present application, for convenience of distinction, the rectangular side surface defined with the internal circuit 14 is the end surface 13 of the display blank 100, that is, the end surface 13 is the rectangular side surface with the internal circuit 14 in the peripheral wall surface, so that the display blank 100 may have one or two or three or four end surfaces 13. In the present application, one end face 13 has a plurality of internal circuits 14. It should be noted that the end face 13 of the display blank 100 is also the end face 13 of the finally produced liquid crystal display 500.
It will be appreciated that when the display blank 100 is made by filling glue between two glass substrates 15, the glue will spill over to the end faces 13 and form, after curing, a glue layer 200, the glue layer 200 covering one or more internal circuits 14 on the end faces 13.
S200, removing the adhesive layer 200 covering the end face 13 to expose the plurality of internal circuits 14.
It will be appreciated that after the removal of the glue layer 200 overlying the end face 13, the plurality of internal circuits 14 may be exposed without being obscured by the glue layer 200.
Specifically, in the present application, in step S200, the end face 13 is cleaned by laser to remove the adhesive layer 200 covering the end face 13. It will be appreciated that the laser cleaning enables the glue layer 200 to evaporate and release from the end face 13 after absorbing the laser energy in a non-contact manner, thereby exposing the plurality of internal circuits 14.
In the present application, the laser cleans the end face 13 at a wavelength of 355nm, a power of less than 15W, and a scanning speed of 1000mm/s to 3000 mm/s. Specifically, the end face 13 may be laser cleaned using a violet skin second laser. It should be noted that, in performing the laser cleaning, it is necessary to scan the entire end face 13 in the thickness direction of the display blank 100 by the laser, and any position of the end face 13 in the thickness direction is located within the scanning range, so as to ensure that the entire end face 13 is cleaned.
S300, a conductive layer 300 covering the plurality of internal circuits 14 is provided on the end face 13.
It will be appreciated that the conductive layer 300, after being disposed on the end face 13, can be stably fixed to the end face 13, and can also be electrically connected to the plurality of internal circuits 14. Specifically, the conductive layer 300 is made of a conductive metal material.
Specifically, in step S300, the conductive layer 300 is formed by coating silver paste on the end face 13 and after curing. It will be appreciated that the silver paste has fluidity, and after being applied to the end face 13, it can be cured and stably attached to the end face 13, while the silver paste can cover the plurality of internal circuits 14 on the end face 13 and, after being cured, can be electrically connected with the plurality of internal circuits 14 stably.
It should be noted that, when the end face 13 is coated with the silver paste, the silver paste needs to cover not only the plurality of internal circuits 14 but also at least a part of the area outside the internal circuits 14 on the end face 13 so that the area of the conductive layer 300 is larger than the total area of the plurality of internal circuits 14 in the area of the end face 13, so that the conductive layer 300 can be divided into the plurality of conductors 400 in S400, and the area of each conductor 400 is ensured to be larger than the area of the corresponding internal circuit 14. In addition, it should be noted that when the end face 13 is coated with the silver paste, it is also ensured that the silver paste does not overflow beyond the extent of the end face 13.
S400, dividing the conductive layer 300 into a plurality of mutually independent conductors 400 which are electrically connected with a plurality of internal circuits 14 in a one-to-one correspondence manner, thereby obtaining a liquid crystal display screen 500; here, the area of the conductor 400 is larger than the area of the internal circuit 14 on the end face 13.
It can be understood that the plurality of conductors 400 are electrically connected to the plurality of internal circuits 14 in a one-to-one correspondence manner, and when the end faces 13 of the two lcd panels 500 are tightly attached, the plurality of conductors 400 on the two end faces 13 can be tightly attached in a one-to-one correspondence manner, so that the internal circuits 14 of the two lcd panels 500 are electrically connected. In addition, on the end face 13, the area of the conductor 400 is larger than that of the internal circuit 14, so that the conductor 400 can be used as an extension of the internal circuit 14 to provide a larger bonding area to facilitate the smooth electrical conduction of the two liquid crystal display panels 500.
Further, in the present application, the electrical conductivity of the electrical conductor 400 is superior to that of the internal circuit 14. Specifically, the material of the internal circuit 14 is copper, the material of the conductor 400 divided by the conductive layer 300 is silver, and after the two conductors 400 are bonded, the connection part can have smaller conductive resistance than the direct electrical connection of the two internal circuits 14, thereby being beneficial to improving the control sensitivity of the liquid crystal in the liquid crystal display screen 500.
In this application, the thickness of the conductive layer 300 is 10 um-20 um, so that the thickness of the conductive body 400 obtained by dividing the conductive body 400 is also 10 um-20 um, and thus, the thickness of the conductive body 400 is smaller, and when the end faces 13 of the two liquid crystal display screens 500 are tightly attached, the total thickness of the two attached conductive bodies 400 is still smaller, and further, it can be ensured that after the two liquid crystal display screens 500 are spliced, the spliced seam which is almost invisible to naked eyes is formed, and the effect of seamless splicing is achieved.
As shown in fig. 1 to 6, in the present application, the conductive layer 300 is directly disposed on the end face 13, so that the height dimension of the conductive layer 300 higher than the end face 13 is the thickness of the conductive layer 300, and the effect of seamless splicing is presented due to the smaller thickness of the conductive layer 300. In other embodiments, the end face 13 may be formed with a groove, the plurality of internal circuits 14 are all located in the area where the groove is located, the silver paste is coated in the groove to form the conductive layer 300, the conductive layer 300 just fills the groove to be level with the end face 13, and at this time, the two end faces 13 can be well attached to achieve the effect of seamless splicing. Further, before the display blank 100 is manufactured in S100, notches may be formed on both glass substrates 15, and after the two glass substrates 15 are glued together, the two notches are spliced together to form a groove. Or the end face 13 may also be laser etched after S200 to form the groove.
In particular, in the embodiment of the present application, the plurality of internal circuits 14 are arranged at intervals in a straight line along the direction in which the length of the end face 13 extends; in step S400: the conductive layer 300 is divided by laser etching to obtain a plurality of conductive bodies 400 extending in a stripe shape in the thickness direction of the liquid crystal display 500, and the plurality of conductive bodies 400 cover the plurality of internal circuits 14 in a one-to-one correspondence.
It will be appreciated that the end face 13 is rectangular and has a width direction and a length direction, and that the width direction of the end face 13 is also the thickness direction of the display blank 100. The plurality of internal circuits 14 are arranged between the two glass substrates 15 at intervals along the length direction of the end face 13. In S400, the portion of the conductive layer 300 between the two internal circuits 14 is removed by means of laser etching and divided by extending in the thickness direction, thereby obtaining a plurality of conductors 400 distributed at intervals along the length direction of the end face 13. It is understood that the plurality of conductors 400 extend in a strip shape having a width in the thickness direction, and the internal circuit 14 is located within the range where the conductors 400 are located.
Specifically, the dimension of the conductor 400 in the length direction of the end face 13 is equal to or slightly larger than the dimension of the internal circuit 14 in the length direction of the end face 13, and the dimension of the conductor 400 in the width direction of the end face 13 is larger than the dimension of the internal circuit 14 in the width direction of the end face 13. Specifically, the plurality of conductors 400 are equally sized in the longitudinal direction of the end face 13 and are equally spaced apart. In the present application, the dimension of the conductor 400 in the length direction of the end face 13 is 25um to 35um, and the distance between two adjacent conductors 400 in the length direction of the end face 13 is equal to the dimension of the conductor 400 in the length direction of the end face 13.
Specifically, in this application, the laser etches the conductive layer 300 at a wavelength of 355nm, a power of less than 15W, and a scan speed of 1000mm/s to 3000 mm/s. Specifically, the conductive layer 300 may be etched using a violet skin second laser. It should be noted that, in performing the laser etching, the laser needs to be scanned and etched along the width direction of the end face 13 (i.e. the thickness direction of the display blank 100), and the laser needs to be scanned to the front face 11 and the back face 12 of the display blank 100, so as to ensure that the conductive layer 300 is divided into a plurality of mutually independent conductors 400.
It will be appreciated that the spacing between the internal circuits 14 is small and that machining between two adjacent internal circuits 14 by means of laser etching to remove material achieves a high machining accuracy, avoiding damage to the internal circuits 14. In this application, the accuracy of laser etching can reach ±5um.
It will be appreciated that although both the cleaning of the end face 13 and the etching of the conductive layer 300 are performed using a uv-vis laser, different specific parameters may be selected for cleaning and etching.
In the above method for manufacturing the lcd 500, the plurality of internal circuits 14 are exposed by removing the adhesive layer 200 covering the end face 13, so that the obstruction of the adhesive layer 200 to the electrical conduction of the two lcds 500 is eliminated.
As shown in fig. 1 to 6, the present application also protects a liquid crystal display 500, which is manufactured by the above-mentioned processing method. Thus, the liquid crystal display 500 has an end face 13, and the liquid crystal display 500 includes a plurality of internal circuits 14 and a plurality of conductors 400, the internal circuits 14 extend from the inside of the liquid crystal display 500 and are exposed out of the end face 13, and the plurality of conductors 400 are all disposed on the end face 13 and electrically connected to the plurality of internal circuits 14 in a one-to-one correspondence; on the end face 13, the area of the conductor 400 is larger than the area of the internal circuit 14.
In the liquid crystal display 500, the glue layer 200 covering the end surfaces 13 is removed to expose the internal circuits 14, so that the obstruction of the glue layer 200 to the electric conduction of the two liquid crystal display 500 is eliminated, in addition, the end surfaces 13 of the liquid crystal display 500 are provided with a plurality of conductors 400 which are mutually independent and are electrically connected with the internal circuits 14 in a one-to-one correspondence manner, the area of the conductors 400 is larger than that of the internal circuits 14, and the conductors 400 can be used as the extension of the internal circuits 14 to provide a larger bonding area so as to facilitate the smooth electric conduction of the two liquid crystal display 500.
The application also protects a large-format spliced screen, which comprises a plurality of liquid crystal display screens 500, wherein the plurality of liquid crystal display screens 500 are arranged in an array mode to be spliced together to obtain the large-format spliced screen. In the plurality of liquid crystal display panels 500, the plurality of conductors 400 of one liquid crystal display panel 500 are bonded to the plurality of conductors 400 of the other liquid crystal display panel 500 in a one-to-one correspondence to be electrically connected.
It will be appreciated that the size of a single lcd 500 is small, which is convenient for processing and transportation, and that a plurality of lcd 500 may be spliced to obtain a larger-area spliced screen, so as to meet the display requirement of a larger area. In the large-format spliced screen, the plurality of conductors 400 of one liquid crystal display screen 500 are bonded with the plurality of conductors 400 of the other liquid crystal display screen 500 in a one-to-one correspondence manner through the end face 13 bonding mode to be electrically conducted, so that the internal circuits 14 of the plurality of liquid crystal display screens 500 are sequentially conducted to be connected in series, and unified and centralized control on the plurality of liquid crystal display screens 500 is realized. In addition, since each liquid crystal display screen 500 has better electrical conduction performance, a large-format spliced screen with better electrical conduction performance can be obtained after the plurality of liquid crystal display screens 500 are spliced.
It can be appreciated that in the large-format spliced screen, each lcd 500 may have one or two or three or four end faces 13, and each end face 13 has a plurality of internal circuits 14, so that one lcd 500 may be electrically connected to one or two or three or four adjacent lcds 500, so that the conductive paths of the internal circuits 14 of the plurality of lcds 500 may be different to cooperate together to obtain a complete circuit meeting the requirements.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. The processing method of the liquid crystal display screen is characterized by comprising the following steps of:
obtaining a display blank having a multi-layer structure by means of gluing, wherein the display blank has a plurality of internal circuits extending to an end face;
removing the adhesive layer covering the end surfaces to expose a plurality of the internal circuits;
providing a conductive layer covering a plurality of the internal circuits on the end face;
dividing the conductive layer into a plurality of mutually independent conductors which are electrically connected with a plurality of internal circuits in one-to-one correspondence, thereby obtaining a liquid crystal display screen; wherein, on the end face, the area of the conductor is larger than the area of the internal circuit.
2. The method of claim 1, wherein in the step of removing the adhesive layer covering each of the internal circuits to expose a plurality of the internal circuits, the end face is cleaned by a laser to remove the adhesive layer covering the end face.
3. The method of manufacturing a liquid crystal display according to claim 2, wherein the laser cleans the end face at a wavelength of 355nm, a power of less than 15W, and a scanning speed of 1000mm/s to 3000 mm/s.
4. The method according to claim 1, wherein in the step of providing a conductive layer covering a plurality of the internal circuits on the end face, the conductive layer is formed by coating silver paste on the end face and after curing.
5. The method of claim 2, wherein the conductive layer has a thickness of 10um to 20um um.
6. The method of claim 1, wherein the conductive layer has a conductivity that is superior to a conductivity of the internal circuit.
7. The method of manufacturing a liquid crystal display according to claim 1, wherein a plurality of the internal circuits are arranged at intervals in a straight line along a direction in which the length of the end face extends; the step of dividing the conductive layer into a plurality of mutually independent conductors electrically connected with the internal circuits in a one-to-one correspondence manner, thereby obtaining the liquid crystal display screen comprises the following steps: and dividing the conductive layer by means of laser etching to obtain a plurality of strip-shaped conductors extending in the thickness direction of the liquid crystal display screen, wherein the conductors are in one-to-one correspondence to cover the internal circuits.
8. The method according to claim 7, wherein the laser etches the conductive layer at a wavelength of 355nm, a power of less than 15W, and a scanning speed of 1000mm/s to 3000 mm/s.
9. A liquid crystal display panel produced by the processing method according to any one of claims 1 to 8.
10. The large-format spliced screen is characterized by comprising a plurality of liquid crystal display screens according to claim 9, wherein the plurality of liquid crystal display screens are arranged in an array mode, and a plurality of conductors of one liquid crystal display screen are attached to a plurality of conductors of the other liquid crystal display screen in a one-to-one correspondence mode to be electrically conducted.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310359961.0A CN116068795A (en) | 2023-04-06 | 2023-04-06 | Processing method of liquid crystal display screen, liquid crystal display screen and large-format spliced screen |
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| CN202310359961.0A CN116068795A (en) | 2023-04-06 | 2023-04-06 | Processing method of liquid crystal display screen, liquid crystal display screen and large-format spliced screen |
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