CN114815335B - Liquid crystal display mother board - Google Patents
Liquid crystal display mother board Download PDFInfo
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- CN114815335B CN114815335B CN202210364806.3A CN202210364806A CN114815335B CN 114815335 B CN114815335 B CN 114815335B CN 202210364806 A CN202210364806 A CN 202210364806A CN 114815335 B CN114815335 B CN 114815335B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 184
- 239000000758 substrate Substances 0.000 claims abstract description 24
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 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 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 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
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
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- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a liquid crystal display mother board, which comprises a substrate and liquid crystal panels 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, and annular functional signal lines are annularly arranged in the non-display area; the annular functional signal wires are electrically connected with the signal multiplexing terminals, and the two adjacent liquid crystal panels share one signal multiplexing terminal; according to the application, the functional signal wires are prepared in the non-display area, and the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal wires, so that extra arrangement of an external leakage terminal is avoided, the utilization rate of a glass panel is improved, and two adjacent liquid crystal panels share one signal multiplexing terminal, so that the number of test terminal groups is further reduced, the occupied space is reduced, the utilization rate of the glass panel is further improved, and the manufacturing cost of the liquid crystal panel is further reduced.
Description
Technical Field
The application relates to the technical field of display, in particular to a liquid crystal display mother board.
Background
Along with the variety of the types and the sizes of the liquid crystal displays, the demand of occupying the market as early as possible and the consideration of the factory productivity matching, more and more panel manufacturers mix and design a plurality of liquid crystal panels on the same motherboard to prepare and cut.
In the design of medium and small-sized liquid crystal panels, a plurality of liquid crystal panels are arranged on a motherboard in an array manner, most panel manufacturers adopt a large glass to design a plurality of small display panels, and the number of the liquid crystal panels is ensured to be maximized by moving a photomask mask plate for exposure, namely, the glass utilization rate is ensured to be maximized on the basis of not influencing the manufacturing process. At present, on the basis of 2500nm multiplied by 2200mm glass size, the medium and small size such as 23.8 inches is difficult to achieve a more ideal glass utilization rate simultaneously in the process, and some other size products have the problem simultaneously, so that the utilization rate of each glass plate is reduced, the manufacturing cost of the liquid crystal panel is improved, and the main reason is that each display panel is required to be provided with a group of array test pads and liquid crystal alignment pads which are symmetrically arranged on the short side or the long side of the display panel, so that a large number of functional signal lines are arranged between 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 board is needed to be provided to solve the problem that the array test pad and the liquid crystal alignment pad of the liquid crystal display mother board are symmetrically arranged on the side edges of the display panel in the prior art, and the space requirement between the adjacent display panels is larger due to the limitation of the process and the fixed size of the glass plate in addition to the array test pad and the liquid crystal alignment pad.
Disclosure of Invention
According to the prior art, the application provides a liquid crystal display mother board, which can solve the problem that in the prior art, the array test pads and the liquid crystal alignment pads of the liquid crystal display mother board are symmetrically arranged on the side edges of a display panel, and the space requirement between adjacent display panels is larger due to the limitation of the array test pads and the liquid crystal alignment pads by a process and the fixed size of a glass plate.
In order to solve the technical problems, the technical scheme provided by the application is as follows:
the embodiment of the application provides a liquid crystal display mother board, which comprises a substrate and liquid crystal panels 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 the non-display area is provided with a functional signal line in a surrounding mode, and the functional signal line is used for inputting test signals and/or liquid crystal alignment signals to the display area;
the function signal wires are electrically connected with the signal multiplexing terminals, and the two adjacent liquid crystal panels share one signal multiplexing terminal.
According to an alternative embodiment of the present application, a first liquid crystal panel and a second liquid crystal panel are disposed on the substrate in opposition, 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 the non-display area of the first liquid crystal panel, and a second functional signal line is disposed around the non-display area 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 alternative embodiment of the present application, a first group of lead terminals is disposed on a side of the first functional signal line, which is 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 alternative embodiment of the present application, a second set of lead terminals is disposed on a side of the second functional signal line, which is close to the first signal multiplexing terminal, and the second set of lead terminals is electrically connected to the first signal multiplexing terminal.
According to an alternative embodiment of the present application, 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 with the second signal multiplexing terminal.
According to an alternative embodiment of the present application, 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 set of lead terminals is disposed on a side of the second functional signal line close to the third signal multiplexing terminal, and the fourth set of lead terminals is electrically connected with the third signal multiplexing terminal.
According to an alternative embodiment of the present application, 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 alternative embodiment of the application, the first set of lead terminals and the second set of lead terminals are fed with the same functional signal; the third group of lead terminals and the fourth group of lead terminals are connected 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; among the second group of lead terminals and the fourth group of lead terminals, one of the lead terminals inputs an electrical signal, and the other group of lead terminals does not input an electrical signal.
According to an alternative embodiment of the present application, a third liquid crystal panel and a fourth liquid crystal panel are 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 third functional signal line is arranged around the non-display area of the third liquid crystal panel, and a fourth functional signal line is arranged around the non-display area of the fourth liquid crystal panel;
wherein the third functional signal line and the fourth functional signal line share the fourth signal multiplexing terminal.
According to an alternative embodiment of the present application, the first to fourth liquid crystal panels form a rectangular structure, and alignment marks are disposed at opposite corners of the rectangular structure, and the alignment marks are made of metal molybdenum.
The application has the beneficial effects that: the embodiment of the application provides a liquid crystal display mother board, which comprises a substrate and liquid crystal panels 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, and functional signal wires are arranged in the non-display area in a surrounding manner and are 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 wire is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal; according to the application, the functional signal wires are prepared in the non-display area, and the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal wires, so that extra arrangement of an external leakage terminal is avoided, the utilization rate of a glass panel is improved, and two adjacent liquid crystal panels share one signal multiplexing terminal, so that the space occupied by a test terminal group is further reduced, the utilization rate of the glass panel is further improved, and the manufacturing cost of the liquid crystal panel is further reduced.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 to 3 are schematic views of a liquid crystal display mother board in the prior art.
Fig. 4 to 5 are schematic views of a liquid crystal display mother board according to an embodiment of the application.
Fig. 6 is a schematic diagram of the position of the alignment mark in fig. 4.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. The directional terms mentioned in the present application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., are only referring to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the application and is not limiting of the application. In the drawings, like elements are denoted by the same reference numerals, and broken lines in the drawings indicate that they are not present in the structure, and only the shape and position of the structure are described.
As shown in fig. 1, 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 array, the periphery of the liquid crystal panels 11 is provided with annular rims 12, the width of each annular rim 12 is 0.17mm, the width of the upper edge of the outermost annular rim 12 and the large glass plate 10 is 17.175mm, the width of the upper edge of the outermost annular rim 12 and the large glass plate 10 is 13.725mm, the width of the right edge of the outermost annular rim 12 and the large glass plate 10 is 17.22mm, the transverse/longitudinal width between two adjacent annular rims 12 is 6mm, although the utilization rate of the large glass plate 10 is lower according to the tight arrangement, as shown in fig. 2, since each liquid crystal panel 11 needs to be inspected after the preparation, each display panel can be normally displayed, the array is provided with a plurality of liquid crystal panels 11 on the large glass plate 10 in the embodiment, the periphery of the liquid crystal panel 11 is provided with an annular frame 12, the annular frame 12 is provided with an outer drain electrode 13, the outer drain electrode 13 is used for inputting detection signals and liquid crystal alignment signals to the liquid crystal panel 11, due to the existence of the outer drain electrode 13, the width of the upper edge of the outermost annular frame 12 and the width of the upper edge of the large glass plate 10 are 13.725mm, the width of the left edge of the outermost annular frame 12 and the width of the left edge of the large glass plate 10 are 23.428mm, the width of the left edge of the liquid crystal panel 11 and the width of the left edge of 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 14.056 mm. As shown in fig. 3, in order to increase the utilization rate of the large glass plate 10, the inventor changes the outer drain electrode 13 into the outer drain terminal 14 in this embodiment, and the outer drain terminal 14 is symmetrically arranged on the upper and lower frames of the liquid crystal panel 11, and compared with fig. 2, the utilization rate of the large glass plate 10 is slightly improved, but the overall utilization rate of the large glass plate is still lower, and the ideal glass plate utilization rate is not achieved, so that the profit of each glass plate is reduced.
It can be clearly obtained that 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 and lower frames of the display panel, and the array test terminal and the liquid crystal alignment terminal are limited by the process and the fixed size of the glass plate, so that the problem of larger space requirement between adjacent liquid crystal panels is caused.
The embodiment of the application provides a liquid crystal display mother board, which comprises a substrate and liquid crystal panels 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 the non-display area is provided with a functional signal line in a surrounding mode, and the functional signal line is 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 functional signal wire is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal; according to the application, the functional signal wires are prepared in the non-display area, and the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal wires, so that extra arrangement of an external leakage terminal is avoided, the utilization rate of a glass panel is improved, and two adjacent liquid crystal panels share one signal multiplexing terminal, so that the space occupied by a test terminal group is further reduced, the utilization rate of the glass panel is further improved, and the manufacturing cost of the liquid crystal panel is further reduced.
Specifically, as shown in fig. 4, the first liquid crystal panel 21 and the second liquid crystal panel 41 are disposed on the substrate, the substrate is a large glass plate, the substrate is not shown in fig. 4, the first signal multiplexing terminal 31 is disposed between the first liquid crystal panel 21 and the second liquid crystal panel 41, and the signal generator inputs a required electrical signal to the first signal multiplexing terminal 31. The non-display area 22 of the first liquid crystal panel 21 is provided with a first functional signal line 23 in a surrounding manner, and the non-display area 42 of the second liquid crystal panel 41 is provided with a second functional signal line 43 in a ring manner; 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 are disposed on a 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 electrically connected with the first signal multiplexing terminal 31; the first set of lead terminals 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 electrically connected with the first signal multiplexing terminal 31. The second set of lead terminals 44 are electrically connected to 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 far away from the second liquid crystal panel 41, a second signal multiplexing terminal 32 is disposed on one side of the first liquid crystal panel, a third group of lead terminals 25 is disposed on one side of the first functional signal line 23 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 outer drain lead terminal 251, an outer drain lead terminal 252, and an outer drain lead terminal 253, and the outer drain lead terminal 251, the outer drain lead terminal 252, and the outer drain lead terminal 253 are electrically connected to the second signal multiplexing terminal 32.
The second liquid crystal panel 41 is provided with a third signal multiplexing terminal 33 at a side far away from the first liquid crystal panel 21, the second functional signal line 43 is provided with a fourth group of lead terminals 45 at a side near the third signal multiplexing terminal 33, and the fourth group of lead terminals 45 are electrically connected with the third signal multiplexing terminal 33. The fourth set of lead terminals 45 includes an outer drain lead terminal 451, an outer drain lead terminal 452, and an outer drain lead terminal 453, and the outer drain lead terminal 451, the outer drain lead terminal 452, and the outer drain lead terminal 453 are electrically connected to the third signal multiplexing terminal 33. The third group of lead terminals 25 is disposed at the lower left corner of the first liquid crystal panel 21, and the fourth group of lead terminals 45 is disposed at the upper right corner of the second liquid crystal panel 41. The first to fourth sets of lead terminals 24 to 45 are diagonally staggered in this embodiment, so that the first and second liquid crystal panels 21 and 41 are positioned as parallel as possible to shorten the space therebetween.
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 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 44 and the fourth group of lead terminals 45, one of the lead terminals inputs an electric signal, and the other group of lead terminals does not input an electric 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 groups of lead terminals 24 to 45 in the present embodiment include three external leakage signal leads, and the first to fourth groups of lead terminals 24 to 45 in other embodiments may further include three or more external leakage signal leads.
In fig. 5, two liquid crystal panels are added in fig. 4, as shown in fig. 5, a third liquid crystal panel 51 and a fourth liquid crystal panel 61 are arranged on the substrate in a butt joint manner, the third liquid crystal panel 51 and the fourth liquid crystal panel 61 are arranged in the same line, the first liquid crystal panel 21 and the second liquid crystal panel 41 are arranged in the same line, the third liquid crystal panel 51 and the first liquid crystal panel 21 are arranged in the same line, and the fourth liquid crystal panel 61 and the second liquid crystal panel 41 are arranged in the same line; 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; wherein 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 arranged on one side of the third functional signal line 53, which is close to the fourth signal multiplexing terminal 34, and the fifth group of lead terminals are electrically connected with 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 arranged on the side, close to the fourth signal multiplexing terminal 31, of the fourth functional signal line 63, and the sixth group of lead terminals are electrically connected with 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.
The third liquid crystal panel 51 is provided with a fifth signal multiplexing terminal 32 at a side far from the fourth liquid crystal panel 61, the third functional signal line 53 is provided with a seventh group of lead terminals at a side near to the fifth signal multiplexing terminal 35, and the seventh group of lead terminals are electrically connected with the fifth signal multiplexing terminal 35. The seventh group of lead terminals includes an outer drain lead terminal 551, an outer drain lead terminal 552, and an outer drain lead terminal 553.
The fourth liquid crystal panel 61 is provided with a sixth signal multiplexing terminal 36 at a side far from the third liquid crystal panel 51, the fourth functional signal line 63 is provided with an eighth group of lead terminals at a side near to the sixth signal multiplexing terminal 36, and the eighth group of lead terminals are electrically connected with 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 will not be described again here.
The first liquid crystal panel 21 to the fourth liquid crystal panel 61 form a rectangular structure, and alignment marks are disposed at opposite corners of the rectangular structure, and are made of metal molybdenum, for example, the alignment marks 26, 27, 46, 56, 57 and 66, wherein a lateral distance between the alignment marks 26 and the substrate is preferably 1.2mm, and a longitudinal distance between the alignment marks 26 and the substrate is preferably 0.5mm, referring to fig. 6. According to the embodiment, not only the four liquid crystal panels, but also a plurality of liquid crystal panels are distributed on the substrate in the structural form, and the adjacent two liquid crystal panels share one signal multiplexing terminal by adjusting the positions of the test terminals, so that the distance between the liquid crystal panels is shortened, and the glass utilization rate can be greatly improved to 95%.
Above, the embodiment of the application provides a liquid crystal display mother board, which comprises a substrate and liquid crystal panels 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, and functional signal wires are arranged in the non-display area in a surrounding manner and are used for inputting test signals and/or liquid crystal alignment signals to the display area; the function signal wires are electrically connected with the signal multiplexing terminals, and the two adjacent liquid crystal panels share one signal multiplexing terminal. According to the application, the functional signal wires are prepared in the non-display area, and the detection signals and the liquid crystal alignment signals are input to one liquid crystal panel through one group of functional signal wires, so that extra arrangement of an external leakage terminal is avoided, the utilization rate of a glass panel is improved, and two adjacent liquid crystal panels share one signal multiplexing terminal, so that the space occupied by a test terminal group is further reduced, the utilization rate of the glass panel is further improved, and the manufacturing cost of the liquid crystal panel is further reduced.
In summary, although the present application has been described in terms of the preferred embodiments, the above-mentioned embodiments are not intended to limit the application, and those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the application, so that the scope of the application is defined by the appended claims.
Claims (3)
1. The liquid crystal display mother board is characterized by comprising a substrate and liquid crystal panels 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 the non-display area is provided with a functional signal line in a surrounding mode, and the functional signal line is 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 functional signal wire is electrically connected with the signal multiplexing terminal, and the two adjacent liquid crystal panels share one signal multiplexing terminal;
the display device comprises a substrate, a first liquid crystal panel, a second liquid crystal panel, a first signal multiplexing terminal, a first functional signal line, a second functional signal line and a second signal line, wherein the first liquid crystal panel and the second liquid crystal panel are oppositely arranged on the substrate;
the first functional signal line and the second functional signal line share the first signal multiplexing terminal, a first group of lead terminals are arranged on one side, close to the first signal multiplexing terminal, of the first functional signal line, the first group of lead terminals are electrically connected with the first signal multiplexing terminal, a second group of lead terminals are arranged on one side, close to the first signal multiplexing terminal, of the second functional signal line, and the second group of lead terminals are electrically connected with the first signal multiplexing terminal;
a second signal multiplexing terminal is arranged on one side, far away from the second liquid crystal panel, of the first liquid crystal panel, a third group of lead terminals are arranged on one side, close to the second signal multiplexing terminal, of the first functional signal wire, and the third group of lead terminals are electrically connected with the second signal multiplexing terminal;
a third signal multiplexing terminal is arranged on one side, far away from the first liquid crystal panel, of the second liquid crystal panel, a fourth group of lead terminals are arranged on one side, close to the third signal multiplexing terminal, of the second functional signal wire, and the fourth group of lead terminals are electrically connected with the third signal multiplexing terminal;
the first group of lead terminals are arranged at the upper right corner of the first liquid crystal panel, the second group of lead terminals are arranged at the lower left corner of the second liquid crystal panel, the third group of lead terminals are arranged at the lower left corner of the first liquid crystal panel, and the fourth group of lead terminals are arranged at the upper right corner of the second liquid crystal panel;
and the first group of lead terminals and the second group of lead terminals are connected with the same functional signals; the third group of lead terminals and the fourth group of lead terminals are connected 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; among the second group of lead terminals and the fourth group of lead terminals, one of the lead terminals inputs an electrical signal, and the other group of lead terminals does not input an electrical signal.
2. The liquid crystal display mother board according to claim 1, wherein a third liquid crystal panel and a fourth liquid crystal panel are arranged on the substrate oppositely, the third liquid crystal panel and the fourth liquid crystal panel are arranged in the same row, the first liquid crystal panel and the second liquid crystal panel are arranged in the same row, the third liquid crystal panel and the first liquid crystal panel are arranged in the same column, and the fourth liquid crystal panel and the second liquid crystal panel are arranged in the same column; a fourth signal multiplexing terminal is arranged between the third liquid crystal panel and the fourth liquid crystal panel, a third functional signal line is arranged around the non-display area of the third liquid crystal panel, and a fourth functional signal line is arranged around the non-display area of the fourth liquid crystal panel;
wherein the third functional signal line and the fourth functional signal line share the fourth signal multiplexing terminal.
3. The liquid crystal display mother board according to claim 2, wherein the first liquid crystal panel to the fourth liquid crystal panel form a rectangular structure, alignment marks are arranged at opposite corners of the rectangular structure, and the alignment marks are made of metal molybdenum.
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| CN202210364806.3A CN114815335B (en) | 2022-04-07 | 2022-04-07 | Liquid crystal display mother board |
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| CN202210364806.3A CN114815335B (en) | 2022-04-07 | 2022-04-07 | Liquid crystal display mother board |
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