CN114815335A - Liquid crystal display mother set - Google Patents
Liquid crystal display mother set Download PDFInfo
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- CN114815335A CN114815335A CN202210364806.3A CN202210364806A CN114815335A CN 114815335 A CN114815335 A CN 114815335A CN 202210364806 A CN202210364806 A CN 202210364806A CN 114815335 A CN114815335 A CN 114815335A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 199
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 18
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 34
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- -1 alignment marks 26 Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- 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
-
- 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
- G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
-
- 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention provides a liquid crystal display mother board, which comprises a substrate and a liquid crystal panel distributed on the substrate in an array manner; each liquid crystal panel comprises a display area and a non-display area positioned on the periphery of the display area, and annular functional signal lines are annularly arranged in the non-display area; a signal multiplexing terminal is arranged between two adjacent liquid crystal panels, the annular functional signal line is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal; the functional signal lines are prepared in the non-display area, the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal lines, an extra leakage terminal is avoided, the utilization rate of the glass plate is improved, in addition, two adjacent liquid crystal panels share one signal multiplexing terminal, the number of the test terminal groups is further reduced, the occupied space is reduced, the utilization rate of the glass plate is further improved, and therefore the manufacturing cost of the liquid crystal panel is reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display mother plate.
Background
With the diversity of the types and sizes of liquid crystal displays, the demand of occupying the market as early as possible, and the consideration of factory capacity matching, more and more panel manufacturers mix and design a plurality of liquid crystal panels on the same mother board for preparation and cutting.
In the design of the medium-small-size liquid crystal panel, a plurality of liquid crystal panels are arrayed on a mother board, most panel manufacturers design a plurality of small display panels on a piece of large glass, and the number of the liquid crystal panels is maximized by moving a photomask mask plate for exposure, namely, the utilization rate of the glass is maximized on the basis of not influencing the manufacturing process. At present, the small size such as 23.8 inches, on the basis that the size of glass is 2500nm x 2200mm, the requirement for the manufacturing process is difficult to meet, a more ideal glass utilization rate is achieved, the problem exists in other products with different sizes, the utilization rate of each glass plate is reduced, the manufacturing cost of the liquid crystal panel is improved, a group of array test pads and liquid crystal alignment pads are required to be arranged on each display panel, the array test pads and the liquid crystal alignment pads are symmetrically arranged on the short sides or the long sides of the display panel, a large number of functional signal lines are arranged between the adjacent display panels, the occupied space is large, and the utilization rate of the glass plates is further reduced.
Therefore, a new liquid crystal display mother panel is needed to be provided to solve the problem that the space requirement between adjacent display panels is large due to the fact that the array test pad and the liquid crystal alignment pad of the liquid crystal display mother panel are symmetrically arranged on the side edge of the display panel and the array test pad and the liquid crystal alignment pad are limited by the manufacturing process and the fixed size of the glass plate in the prior art.
Disclosure of Invention
This application provides a liquid crystal display mother board according to prior art problem, can solve among the prior art array test pad and the liquid crystal of liquid crystal display mother board and join in marriage the side that the pad symmetry set up display panel to, in addition array test pad and liquid crystal join in marriage to fill in and receive the injecing of processing procedure and glass board fixed dimension, cause the great problem of space demand between the adjacent display panel.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the embodiment of the invention provides a liquid crystal display mother board, which comprises a substrate and a liquid crystal panel distributed on the substrate in an array manner; each liquid crystal panel comprises a display area and a non-display area positioned on the periphery of the display area, wherein the non-display area is provided with a functional signal line in a surrounding manner, and the functional signal line is used for inputting a test signal and/or a liquid crystal alignment signal to the display area;
and a signal multiplexing terminal is arranged between two adjacent liquid crystal panels, the functional signal line is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal.
According to an optional embodiment of the present invention, a first liquid crystal panel and a second liquid crystal panel are oppositely disposed on the substrate, a first signal multiplexing terminal is disposed between the first liquid crystal panel and the second liquid crystal panel, a first functional signal line is disposed around a non-display region of the first liquid crystal panel, and a second functional signal line is disposed around a non-display region of the second liquid crystal panel;
wherein the first functional signal line and the second functional signal line share the first signal multiplexing terminal.
According to an optional embodiment of the present invention, a first group of lead terminals is disposed on a side of the first functional signal line close to the first signal multiplexing terminal, and the first group of lead terminals is electrically connected to the first signal multiplexing terminal.
According to an optional embodiment of the present invention, a second group of lead terminals is disposed on a side of the second functional signal line close to the first signal multiplexing terminal, and the second group of lead terminals is electrically connected to the first signal multiplexing terminal.
According to an optional embodiment of the present invention, a second signal multiplexing terminal is disposed on a side of the first liquid crystal panel away from the second liquid crystal panel, a third set of lead terminals is disposed on a side of the first functional signal line close to the second signal multiplexing terminal, and the third set of lead terminals is electrically connected to the second signal multiplexing terminal.
According to an optional embodiment of the present invention, a third signal multiplexing terminal is disposed on a side of the second liquid crystal panel away from the first liquid crystal panel, a fourth lead terminal is disposed on a side of the second functional signal line close to the third signal multiplexing terminal, and the fourth lead terminal is electrically connected to the third signal multiplexing terminal.
According to an optional embodiment of the present invention, the first set of lead terminals is disposed at an upper right corner of the first liquid crystal panel, the second set of lead terminals is disposed at a lower left corner of the second liquid crystal panel, the third set of lead terminals is disposed at a lower left corner of the first liquid crystal panel, and the fourth set of lead terminals is disposed at an upper right corner of the second liquid crystal panel.
According to an optional embodiment of the present invention, the first group of lead terminals and the second group of lead terminals are supplied with the same function signals; the third group of lead terminals and the fourth group of lead terminals are introduced with the same functional signals; among the first group of lead terminals and the third group of lead terminals, one group of lead terminals inputs an electric signal, and the other group of lead terminals does not input an electric signal; in the second group of lead terminals and the fourth group of lead terminals, one of the lead terminals inputs an electric signal, and the other group of lead terminals does not input an electric signal.
According to an optional embodiment of the present invention, a third liquid crystal panel and a fourth liquid crystal panel are further disposed on the substrate oppositely, the third liquid crystal panel and the fourth liquid crystal panel are disposed in the same row, the first liquid crystal panel and the second liquid crystal panel are disposed in the same row, the third liquid crystal panel and the first liquid crystal panel are disposed in the same column, and the fourth liquid crystal panel and the second liquid crystal panel are disposed in the same column; a fourth signal multiplexing terminal is arranged between the third liquid crystal panel and the fourth liquid crystal panel, a non-display area of the third liquid crystal panel is provided with third functional signal lines in a surrounding manner, and a non-display area of the fourth liquid crystal panel is annularly provided with fourth functional signal lines;
wherein the third functional signal line and the fourth functional signal line share the fourth signal multiplexing terminal.
According to an optional embodiment of the present invention, the first liquid crystal panel to the fourth liquid crystal panel form a rectangular structure, alignment marks are disposed at opposite corners of the rectangular structure, and the alignment marks are made of molybdenum.
The invention has the beneficial effects that: the embodiment of the invention provides a liquid crystal display mother board, which comprises a substrate and a liquid crystal panel distributed on the substrate in an array manner; each liquid crystal panel comprises a display area and a non-display area positioned at the periphery of the display area, wherein functional signal lines are arranged in the non-display area in a surrounding manner and used for inputting test signals and/or liquid crystal alignment signals to the display area; a signal multiplexing terminal is arranged between two adjacent liquid crystal panels, the annular functional signal line is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal; the functional signal lines are prepared in the non-display area, the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal lines, an extra leakage terminal is avoided, the utilization rate of the glass plate is improved, in addition, two adjacent liquid crystal panels share one signal multiplexing terminal, the space occupied by the test terminal group is further reduced, the utilization rate of the glass plate is further improved, and the manufacturing cost of the liquid crystal panel is reduced.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 to fig. 3 are schematic structural diagrams of a liquid crystal display master in the prior art.
Fig. 4 to fig. 5 are schematic diagrams illustrating a structure of a liquid crystal display master according to an embodiment of the present invention.
Fig. 6 is a schematic position diagram of the alignment mark in fig. 4.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals, and broken lines in the drawings indicate that the elements do not exist in the structures, and only the shapes and positions of the structures are explained.
As shown in fig. 1, currently, the size of the large glass plate 10 is 2500nm × 2200mm, a plurality of liquid crystal panels 11 are arranged on the large glass plate 10 in an array, an annular frame 12 is arranged on the periphery of the liquid crystal panel 11, the width of the annular frame 12 is 0.17mm, the widths of the upper edges of the outermost annular frame 12 and the large glass plate 10 are 17.175mm, the widths of the upper edges of the outermost annular frame 12 and the large glass plate 10 are 13.725mm, the widths of the right edges of the outermost annular frame 12 and the large glass plate 10 are 17.22mm, the transverse/longitudinal widths between two adjacent annular frames 12 are 6mm, although according to the above-mentioned close arrangement, the utilization ratio of the large glass plate 10 is low, as shown in fig. 2, since each liquid crystal panel 11 needs to be inspected after being prepared, each display panel can be ensured to be normally displayed, the array on the large glass plate 10 in this embodiment is provided with a plurality of liquid crystal panels 11, the liquid crystal panel 11 is provided with an annular frame 12 at the periphery thereof, the annular frame 12 is provided with an outer drain electrode 13, the outer drain electrode 13 is used for inputting a detection signal and a liquid crystal alignment signal to the liquid crystal panel 11, due to the existence of the outer drain electrode 13, the widths of the upper edges of the outermost annular frame 12 and the large glass plate 10 are 13.725mm, the widths of the left edges of the outermost annular frame 12 and the large glass plate 10 are 23.428mm, the widths of the left edges of the liquid crystal panel 11 and the large glass plate 10 are 28.9472mm, the longitudinal width between two adjacent liquid crystal panels 11 is 17.146mm, the transverse width between two adjacent liquid crystal panels 11 is 25.0944mm, the longitudinal width between two adjacent annular frames 12 is 3.95mm, and the transverse width between two adjacent annular frames 12 is 14.056mm, so that the arrangement scheme further reduces the utilization rate of the large glass plate 10. As shown in fig. 3, in order to increase the utilization rate of the large glass plate 10, the inventor in this embodiment changes the outer drain electrode 13 into the outer drain terminal 14, and the outer drain terminals 14 are symmetrically disposed on the upper and lower frames of the liquid crystal panel 11, compared with fig. 2, the utilization rate of the large glass plate 10 is slightly increased, but the overall ratio is still relatively low, and the ideal glass plate utilization rate is not reached, so that the profit of each glass plate is reduced.
The array test terminal and the liquid crystal alignment terminal of the liquid crystal display mother board in the prior art are symmetrically arranged on the upper frame and the lower frame of the display panel, and the array test terminal and the liquid crystal alignment terminal are limited by the manufacturing process and the fixed size of the glass plate, so that the space requirement between the adjacent liquid crystal panels is large.
The embodiment of the invention provides a liquid crystal display mother board, which comprises a substrate and a liquid crystal panel distributed on the substrate in an array manner; each liquid crystal panel comprises a display area and a non-display area positioned on the periphery of the display area, wherein the non-display area is provided with a functional signal line in a surrounding manner, and the functional signal line is used for inputting a test signal and/or a liquid crystal alignment signal to the display area; a signal multiplexing terminal is arranged between two adjacent liquid crystal panels, the functional signal line is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal; the functional signal lines are prepared in the non-display area, the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal lines, an extra leakage terminal is avoided, the utilization rate of the glass plate is improved, in addition, two adjacent liquid crystal panels share one signal multiplexing terminal, the space occupied by the test terminal group is further reduced, the utilization rate of the glass plate is further improved, and the manufacturing cost of the liquid crystal panel is reduced.
Specifically, as shown in fig. 4, a first liquid crystal panel 21 and a second liquid crystal panel 41 are oppositely disposed on the substrate, the substrate is a large glass plate, the substrate is not shown in fig. 4, a first signal multiplexing terminal 31 is disposed between the first liquid crystal panel 21 and the second liquid crystal panel 41, and a signal generator inputs a required electrical signal to the first signal multiplexing terminal 31. A first functional signal line 23 is arranged around the non-display area 22 of the first liquid crystal panel 21, and a second functional signal line 43 is annularly arranged in the non-display area 42 of the second liquid crystal panel 41; the first functional signal line 23 and the second functional signal line 43 share the first signal multiplexing terminal 31, a first group of lead terminals 24 is disposed on one side of the first functional signal line 23 close to the first signal multiplexing terminal 31, and the first group of lead terminals 24 are all electrically connected with the first signal multiplexing terminal 31; the first group lead terminal 24 includes an outer drain lead terminal 241, an outer drain lead terminal 242, and an outer drain lead terminal 243, and the outer drain lead terminal 241, the outer drain lead terminal 242, and the outer drain lead terminal 243 are electrically connected to the first signal multiplexing terminal 31.
The second functional signal line 43 is provided with a second set of lead terminals 44 near the first signal multiplexing terminal 31, and the second set of lead terminals 44 are all electrically connected to the first signal multiplexing terminal 31. The second group of lead terminals 44 are all electrically connected with the first signal multiplexing terminal 31; the second set of lead terminals 44 includes an outer drain lead terminal 441, an outer drain lead terminal 442 and an outer drain lead terminal 443, and the outer drain lead terminal 441, the outer drain lead terminal 442 and the outer drain lead terminal 443 are electrically connected to the first signal multiplexing terminal 31. The first group of lead terminals 24 is disposed at the upper right corner of the first liquid crystal panel 21, and the second group of lead terminals 44 is disposed at the lower left corner of the second liquid crystal panel 41.
The first liquid crystal panel 21 is provided with a second signal multiplexing terminal 32 on the side far away from the second liquid crystal panel 41, the first functional signal line 23 is provided with a third group of lead terminals 25 on the side near the second signal multiplexing terminal 32, and the third group of lead terminals 25 are electrically connected with the second signal multiplexing terminal 32. The third set of lead terminals 25 includes an external drain lead terminal 251, an external drain lead terminal 252 and an external drain lead terminal 253, and the external drain lead terminal 251, the external drain lead terminal 252 and the external drain lead terminal 253 are electrically connected to the second signal multiplexing terminal 32.
A third signal multiplexing terminal 33 is disposed on a side of the second liquid crystal panel 41 away from the first liquid crystal panel 21, a fourth lead terminal 45 is disposed on a side of the second functional signal line 43 close to the third signal multiplexing terminal 33, and the fourth lead terminals 45 are electrically connected to the third signal multiplexing terminal 33. The fourth lead terminal 45 includes an external drain lead terminal 451, an external drain lead terminal 452, and an external drain lead terminal 453, and the external drain lead terminal 451, the external drain lead terminal 452, and the external drain lead terminal 453 are electrically connected to the third signal multiplexing terminal 33. The third group lead terminal 25 is disposed at the lower left corner of the first liquid crystal panel 21, and the fourth group lead terminal 45 is disposed at the upper right corner of the second liquid crystal panel 41. In the present embodiment, the first to fourth lead terminals 24 to 45 are diagonally staggered, so that the first liquid crystal panel 21 and the second liquid crystal panel 41 are positioned in parallel up and down as much as possible, and the space between the two is shortened.
The first set of lead terminals 24 and the second set of lead terminals 44 are fed with the same functional signals; the third set of lead terminals 25 and the fourth set of lead terminals 45 are fed with the same functional signals. Among the first group of lead terminals 24 and the third group of lead terminals 25, one of them inputs an electric signal and the other thereof does not input an electric signal; in the second group of lead terminals 44 and the fourth group of lead terminals 45, one of the lead terminals inputs an electrical signal, and the other lead terminal does not input an electrical signal, so that a phenomenon of signal crosstalk can occur in the functional signal lines in the same liquid crystal panel.
The first to fourth lead terminals 24 to 45 in this embodiment may include three external leakage signal leads, and the first to fourth lead terminals 24 to 45 in other embodiments may include three or more external leakage signal leads.
Fig. 5 is to add two liquid crystal panels to fig. 4, and as shown in fig. 5, a third liquid crystal panel 51 and a fourth liquid crystal panel 61 are butt-jointed on the substrate, the third liquid crystal panel 51 and the fourth liquid crystal panel 61 are arranged in the same row, the first liquid crystal panel 21 and the second liquid crystal panel 41 are arranged in the same row, the third liquid crystal panel 51 and the first liquid crystal panel 21 are arranged in the same column, and the fourth liquid crystal panel 61 and the second liquid crystal panel 41 are arranged in the same column; a fourth signal multiplexing terminal 34 is disposed between the third liquid crystal panel 51 and the fourth liquid crystal panel 61, a third functional signal line 53 is disposed around the non-display area 52 of the third liquid crystal panel 51, and a fourth functional signal line 63 is disposed around the non-display area 62 of the fourth liquid crystal panel 61; the third functional signal line 53 and the fourth functional signal line 63 share the fourth signal multiplexing terminal 34.
A fifth group of lead terminals are disposed on one side of the third functional signal line 53 close to the fourth signal multiplexing terminal 34, and the fifth group of lead terminals are electrically connected to the fourth signal multiplexing terminal 34; the fifth group of lead terminals includes an outer drain lead terminal 541, an outer drain lead terminal 542, and an outer drain lead terminal 543.
A sixth group of lead terminals are disposed on the fourth functional signal line 63 near the fourth signal multiplexing terminal 31, and the sixth group of lead terminals are electrically connected to the fourth signal multiplexing terminal 34; the sixth set of lead terminals includes an outer drain lead terminal 641, an outer drain lead terminal 642 and an outer drain lead terminal 643.
A fifth signal multiplexing terminal 32 is disposed on a side of the third liquid crystal panel 51 away from the fourth liquid crystal panel 61, a seventh group of lead terminals is disposed on a side of the third functional signal line 53 close to the fifth signal multiplexing terminal 35, and the seventh group of lead terminals is electrically connected to the fifth signal multiplexing terminal 35. The seventh group of lead terminals includes an external drain lead terminal 551, an external drain lead terminal 552 and an external drain lead terminal 553.
A sixth signal multiplexing terminal 36 is disposed on a side of the fourth liquid crystal panel 61 away from the third liquid crystal panel 51, an eighth set of lead terminals is disposed on a side of the fourth functional signal line 63 close to the sixth signal multiplexing terminal 36, and the eighth set of lead terminals is electrically connected to the sixth signal multiplexing terminal 36. The eighth group of lead terminals includes an outer drain lead terminal 651, an outer drain lead terminal 652 and an outer drain lead terminal 653. The rest of the structure is similar to that of fig. 4, and the description is omitted here.
The first liquid crystal panel 21 to the fourth liquid crystal panel 61 form a rectangular structure, alignment marks are disposed at opposite corners of the rectangular structure, the alignment marks are made of molybdenum, such as alignment marks 26, alignment marks 27, alignment marks 46, alignment marks 56, alignment marks 57, and alignment marks 66, a transverse distance between the alignment mark 26 and the substrate is preferably 1.2mm, and a longitudinal distance between the alignment mark 26 and the substrate is preferably 0.5mm, as shown in fig. 6. In this embodiment, not only the four liquid crystal panels but also a plurality of liquid crystal panels are distributed on the substrate in the above structure, and by adjusting the positions of the test terminals, two adjacent liquid crystal panels share one signal multiplexing terminal, so that the distance between the liquid crystal panels is shortened, and the glass utilization rate can be greatly improved to 95%.
In the foregoing, an embodiment of the present invention provides a liquid crystal display mother panel, where the liquid crystal display mother panel includes a substrate and a liquid crystal panel distributed in an array on the substrate; each liquid crystal panel comprises a display area and a non-display area positioned at the periphery of the display area, wherein functional signal lines are arranged in the non-display area in a surrounding manner and used for inputting test signals and/or liquid crystal alignment signals to the display area; and a signal multiplexing terminal is arranged between two adjacent liquid crystal panels, the functional signal line is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal. The functional signal lines are prepared in the non-display area, the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal lines, an extra leakage terminal is avoided, the utilization rate of the glass plate is improved, in addition, two adjacent liquid crystal panels share one signal multiplexing terminal, the space occupied by the test terminal group is further reduced, the utilization rate of the glass plate is further improved, and the manufacturing cost of the liquid crystal panel is reduced.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. The liquid crystal display mother board is characterized by comprising a substrate and a liquid crystal panel distributed on the substrate in an array manner; each liquid crystal panel comprises a display area and a non-display area positioned on the periphery of the display area, wherein the non-display area is provided with a functional signal line in a surrounding manner, and the functional signal line is used for inputting a test signal and/or a liquid crystal alignment signal to the display area;
and a signal multiplexing terminal is arranged between two adjacent liquid crystal panels, the functional signal line is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal.
2. The liquid crystal display mother panel according to claim 1, wherein a first liquid crystal panel and a second liquid crystal panel are oppositely disposed on the substrate, a first signal multiplexing terminal is disposed between the first liquid crystal panel and the second liquid crystal panel, a first functional signal line is disposed around a non-display region of the first liquid crystal panel, and a second functional signal line is disposed around a non-display region of the second liquid crystal panel;
wherein the first functional signal line and the second functional signal line share the first signal multiplexing terminal.
3. The liquid crystal display master according to claim 2, wherein the first functional signal line is provided with a first group of lead terminals on a side thereof adjacent to the first signal multiplexing terminal, the first group of lead terminals being electrically connected to the first signal multiplexing terminal.
4. The liquid crystal display master according to claim 3, wherein the second functional signal line is provided with a second group of lead terminals on a side thereof adjacent to the first signal multiplexing terminal, the second group of lead terminals being electrically connected to the first signal multiplexing terminal.
5. The liquid crystal display master according to claim 4, wherein a side of the first liquid crystal panel away from the second liquid crystal panel is provided with a second signal multiplexing terminal, a side of the first functional signal line close to the second signal multiplexing terminal is provided with a third set of lead terminals, and the third set of lead terminals is electrically connected with the second signal multiplexing terminal.
6. The liquid crystal display mother panel according to claim 5, wherein a third signal multiplexing terminal is disposed on a side of the second liquid crystal panel away from the first liquid crystal panel, a fourth lead terminal is disposed on a side of the second functional signal line close to the third signal multiplexing terminal, and the fourth lead terminal is electrically connected to the third signal multiplexing terminal.
7. The liquid crystal display master according to claim 4, wherein the first group of lead terminals are disposed at the upper right corner of the first liquid crystal panel, the second group of lead terminals are disposed at the lower left corner of the second liquid crystal panel, the third group of lead terminals are disposed at the lower left corner of the first liquid crystal panel, and the fourth group of lead terminals are disposed at the upper right corner of the second liquid crystal panel.
8. The liquid crystal display master according to claim 7, wherein the first set of lead terminals and the second set of lead terminals are fed with the same functional signals; the third group of lead terminals and the fourth group of lead terminals are introduced with the same functional signals; among the first group of lead terminals and the third group of lead terminals, one group of lead terminals inputs an electric signal, and the other group of lead terminals does not input an electric signal; in the second group of lead terminals and the fourth group of lead terminals, one of the lead terminals inputs an electric signal, and the other group of lead terminals does not input an electric signal.
9. The liquid crystal display mother panel according to claim 2, wherein a third liquid crystal panel and a fourth liquid crystal panel are oppositely disposed on the substrate, the third liquid crystal panel and the fourth liquid crystal panel are disposed in the same row, the first liquid crystal panel and the second liquid crystal panel are disposed in the same row, the third liquid crystal panel and the first liquid crystal panel are disposed in the same column, and the fourth liquid crystal panel and the second liquid crystal panel are disposed in the same column; a fourth signal multiplexing terminal is arranged between the third liquid crystal panel and the fourth liquid crystal panel, a non-display area of the third liquid crystal panel is provided with third functional signal lines in a surrounding manner, and a non-display area of the fourth liquid crystal panel is annularly provided with fourth functional signal lines;
wherein the third functional signal line and the fourth functional signal line share the fourth signal multiplexing terminal.
10. The liquid crystal display master according to claim 9, wherein the first liquid crystal panel to the fourth liquid crystal panel form a rectangular structure, alignment marks are disposed at opposite corners of the rectangular structure, and the alignment marks are made of molybdenum.
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