CN106448611B - Novel display capable of sharing mask and manufacturing process thereof - Google Patents
Novel display capable of sharing mask and manufacturing process thereof Download PDFInfo
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- CN106448611B CN106448611B CN201611147522.XA CN201611147522A CN106448611B CN 106448611 B CN106448611 B CN 106448611B CN 201611147522 A CN201611147522 A CN 201611147522A CN 106448611 B CN106448611 B CN 106448611B
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- 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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- 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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
A new display and its preparation method that can share the mask, involve the technical field of the flat panel display, solve the structural commonality of the existing flat panel display bad, unfavorable to the customization and develop and produce, the higher technological deficiency of the production cost of customization, the scheme adopted is: a plurality of scanning line conductive contacts corresponding to the TFT transistors are arranged on the scanning lines, and a plurality of data line conductive contacts corresponding to the TFT transistors are arranged on the data lines; the upper substrate comprises an effective display area and a non-display area, the drive IC is arranged on the non-display area of the upper substrate, the non-display area is also provided with an electric transfer material which is respectively and electrically connected with the scanning line conductive contact and the data line conductive contact, and the drive IC is respectively and electrically connected with the scanning line and the data line through the electric transfer material. The driving IC on the traditional display is transferred to the upper substrate through the driving sub-substrate, only the required upper substrate needs to be customized, and only 1-2 sets of mask plates are needed for customizing the required upper substrate, so that the development cost can be saved, the development process is accelerated, and the waste of resources can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of flat panel displays, in particular to the improvement of small-batch display structures with larger size and shape requirements and production processes.
Background
Flat panel displays, including liquid crystal displays, OLED displays, and the like, are widely used in various information input and output terminals, such as: cell phones, computers, televisions, POS machines, industrial equipment, medical equipment, and the like. Due to the fact that application scenes are various, requirements for size and shape under different application scenes are different greatly. It is common practice to fully customize and develop displays to each size requirement. Each customized display requires approximately ten photomask coating processes, corresponding to approximately ten sets of precision masks. These masks are typically expensive, resulting in high development costs for the display. However, many application scenarios require a small number of display screens, and do not have strict requirements for resolution (PPI) other than size and shape, and it is not necessary or cost-effective to develop a single set of masks.
Disclosure of Invention
In summary, the present invention is directed to a novel display device and a manufacturing process thereof, which can share a mask, to solve the technical disadvantages of the conventional flat panel display device, such as poor structural versatility, inconvenience for custom development and production, and high cost of custom development and production.
In order to solve the technical problems provided by the invention, the technical scheme is as follows: a new display capable of sharing mask comprises a driver sub-substrate, an upper substrate and a driver IC; the driving sub-substrate is pressed with the upper substrate, and a plurality of TFT transistors, scanning lines and data lines which are respectively electrically connected with the TFTs are distributed on the driving sub-substrate in an array manner; the method is characterized in that: a plurality of scanning line conductive contacts corresponding to the TFT transistors are arranged on the scanning lines, and a plurality of data line conductive contacts corresponding to the TFT transistors are arranged on the data lines; the upper substrate comprises an effective display area and a non-display area, the drive IC is arranged on the non-display area of the upper substrate, the non-display area is also provided with an electric transfer material which is respectively and electrically connected with the scanning line conductive contact and the data line conductive contact, and the drive IC is respectively and electrically connected with the scanning line and the data line through the electric transfer material.
The upper substrate is a liquid crystal upper substrate, an organic light-emitting diode upper substrate or a quantum dot light-emitting diode upper substrate.
The electric transfer material is conductive adhesive containing conductive particles or anisotropic conductive film.
A new display manufacturing process capable of sharing a mask plate adopts the steps of respectively manufacturing a driving mother plate and an upper substrate mother plate, then laminating the driving mother plate and the upper substrate mother plate, and then dividing the driving mother plate and the upper substrate mother plate in a laminated state to form a single display consisting of a single driving sub-substrate, a single upper substrate and a single driving IC; the method is characterized in that:
When a driving mother board is manufactured, firstly, a public driving mother board which comprises a TFT transistor, a scanning line and a data line and does not contain a driving IC is manufactured; etching a plurality of holes corresponding to each scanning line and each data line on the public driving mother board, and then manufacturing conductive contacts in the holes;
when the upper substrate mother board is manufactured, customizing unit blocks according to the size of a required target display, dividing a display area and a non-display area on each unit block, printing a corresponding drive IC circuit on the non-display area, and fixing the drive IC, wherein the drive IC is electrically connected with the drive IC circuit;
when the driving mother board is pressed with the upper substrate mother board, besides coating the edge sealing rubber frame, an electric transfer material is added between the driving mother board and the upper substrate mother board, and the conductive contact is electrically transferred and connected with the driving IC circuit.
And etching at least one corresponding hole in the corresponding section of the scanning line and the corresponding section of the data line corresponding to each TFT transistor on the common drive mother board.
And conductive contacts are formed on the holes by depositing conductive materials.
The electric transfer between the driving motherboard and the upper substrate motherboard is realized by coating and curing a conductive adhesive or pasting an anisotropic conductive film.
The invention has the beneficial effects that: the driving IC on the traditional display is transferred to the upper substrate from the driving sub-substrate, the driving sub-substrate is cut from the driving mother board according to the required size and shape, when the display with any size and shape is manufactured, the display can be cut by using the same driving mother board, only the required upper substrate needs to be customized, and only 1-2 sets of mask plates are needed for customizing the required upper substrate, so that the development cost can be saved, the development process is accelerated, and the waste of resources can be greatly reduced.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of a conventional display;
FIG. 2 is a schematic top view of a conventional display;
FIG. 3 is a schematic view of a driving mother board for manufacturing a driving sub-substrate of a conventional display;
FIG. 4 is a schematic view of a driving mother board for manufacturing the driving sub-substrate of the display according to the present invention;
FIG. 5 is a schematic cross-sectional view of a liquid crystal display device according to the present invention;
FIG. 6 is a schematic cross-sectional view of the conductive contact of the driving sub-substrate of the display device according to the present invention;
FIG. 7 is a schematic structural diagram of the front side of a single driving sub-substrate divided from a driving mother board;
FIG. 8 is a schematic view of the front structure of a single upper substrate separated from the mother substrate of the upper substrate;
FIG. 9 is a schematic side view of a laminated structure of a driver substrate and an upper substrate according to the present invention.
Detailed Description
The structure of the present invention will be further described with reference to the preferred embodiments of the present invention.
Referring to fig. 1 to 3, the conventional display includes a driver sub-substrate 1, an upper substrate 2, and a driving IC 3; the edge of the driving sub-substrate 1 is pressed with the upper substrate 2 after being coated with the edge sealing glue frame 4, the driving IC 3 is arranged on the non-display area of the driving sub-substrate 1, and the display area of the driving sub-substrate 1 is provided with a plurality of TFT transistors 10 distributed in a matrix mode and scanning lines 11 and data lines 12 which are respectively and electrically connected with the TFT transistors 10; the driving IC 3 connects each scanning line 11 and the data line 12; the traditional display needs to be typeset and designed according to the required size and shape of the driving sub-substrate 1 and the upper substrate 2 respectively during development, and after the traditional display is manufactured, the traditional display is cut into the required size according to a specified cutting scheme, so that a unique mask mould is generally required, the universality is poor, the development cost is high, the speed is low, and a lot of resource materials are wasted.
Referring to fig. 4 to 9, the novel display capable of sharing a mask according to the present invention also includes a driver sub-substrate 1, an upper substrate 2, and a driver IC 3; the driving sub-substrate 1 is pressed with the upper substrate 2, a plurality of TFT transistors 10 are distributed on a substrate 15 of the driving sub-substrate 1 in an array manner, and a scanning line 11, a data line 12 and an ITO electrode 14 are respectively and electrically connected with the TFT transistors 10; the scanning line 11 and the data line 12 are isolated by an insulating layer 16, and the data line 12 is arranged in an insulating protective layer 17; different from the traditional display, each scanning line 11 is provided with a plurality of scanning line conductive contacts 110 corresponding to each TFT transistor 10, and each data line 12 is provided with a plurality of data line conductive contacts 120 corresponding to each TFT transistor 10; that is, the scan line 11 and the data line 12 connected to each TFT transistor 10 are located at peripheral positions thereof with at least one scan line conductive contact 110 and at least one data line conductive contact 120, as shown in fig. 7.
The upper substrate 2 includes an effective display area 21 and a non-display area 22, the driving IC3 is disposed on the non-display area 22 of the upper substrate 2, the non-display area is further provided with an electrical transfer material 23 electrically connected to the scanning line conductive contact and the data line conductive contact, respectively, and the driving IC3 is electrically connected to the scanning line 11 and the data line 12 through the electrical transfer material 23, as shown in fig. 8; the electric transfer material 23 is a conductive paste containing conductive particles or an anisotropic conductive film. An electrostatic protection circuit may be further added to the non-display region 22 as needed.
This structure of the invention is suitable for liquid crystal displays or OLED (organic light emitting diode) or QLED (quantum dot light emitting diode) displays. As shown in fig. 5, when the liquid crystal display device of the present invention is used, the upper substrate 2 includes a CF substrate 24, a red ink 25, a green ink 26, a blue ink 20 and a pixel isolation region 27 on an inner side of the CF substrate 24, a transparent electrode 28 and a liquid crystal layer 29 (PI and polarizer are not shown) under the red ink 25, the green ink 26, the blue ink 20 and the pixel isolation region 27.
The novel display capable of sharing the mask is beneficial to saving development cost, accelerating the development process and greatly reducing the waste of resources.
The manufacturing process of the novel display capable of sharing the mask plate also comprises the steps of respectively manufacturing the driving mother plate and the upper substrate mother plate, then laminating the driving mother plate and the upper substrate mother plate, and then dividing the driving mother plate and the upper substrate mother plate into the single displays.
When manufacturing a driving motherboard, as shown in fig. 4, a common driving motherboard including a TFT transistor 10, a scanning line 11, and a data line 12, and not including a driving IC, is manufactured by a conventional process; then, the invention etches a plurality of holes corresponding to each scanning line 11 and each data line 12 on the public driving mother board, and then conductive contacts 110 and 120 are made in the holes; the conductive contacts 110, 120 may be formed by depositing a conductive material over the holes. In order to improve the position arbitrariness during subsequent segmentation, when target displays with different sizes and shapes are cut at a required position, electric signal transfer on the driving sub-substrate 1 can be connected with a driving IC on the upper substrate, at least one corresponding hole is respectively etched in corresponding sections of a scanning line 11 and a data line 12 corresponding to each TFT transistor 10 on a common driving mother board, and the scanning line 11 and the data line 12 connected with each TFT transistor 10 are positioned at peripheral positions and at least one scanning line conductive contact 110 and at least one data line conductive contact 120 are achieved.
When an upper substrate mother board is manufactured, customizing unit blocks according to the size of a required target display, dividing each unit block into a display area 21 and a non-display area 22, coating black ink on the non-display area 22 for shielding, printing a corresponding drive IC circuit on the non-display area 22, and fixing a drive IC 3, wherein the drive IC 3 is electrically connected with the drive IC circuit; the manufacturing of the upper substrate motherboard is the same as the existing process, only the driving IC 3 and the driving IC circuit are added, the process flow is similar to the existing process flow for placing the driving IC on the driving substrate, and the detailed description is omitted, and the structure and the manufacturing process of the upper substrate motherboard can be adjusted according to the type of the display required, such as liquid crystal type, organic light emitting diode type or quantum dot light emitting diode type.
When the driving mother board is pressed with the upper substrate mother board, besides coating the edge sealing rubber frame 4, an electrical transfer material 23 is added between the driving mother board and the upper substrate mother board, and the scanning line conductive contact 110 and the data line conductive contact 120 on the driving mother board are electrically transferred and connected to the driving IC circuit on the upper substrate mother board, so that the driving IC 3 can be connected with and control the TFT transistor 10 on the driving mother board. The electrical transfer material 23 between the drive motherboard and the upper substrate motherboard can be formed specifically by coating and curing (for a conductive paste) or pasting (for an anisotropic conductive film ACF).
The final segmentation reaches several new displays that can share a reticle as shown in fig. 9. The specific content of the dividing step is to divide one drive mother board into a plurality of drive sub-substrates 1 as shown in fig. 7, and divide one upper substrate mother board into a plurality of upper substrates 2 as shown in fig. 8 (two mother boards may be bonded and then cut). Each driver sub-substrate 1 includes a display region 18 and a non-display region (the regions outside the display region 18 are non-display regions); the display area 18 is attached to the display area 21 on the upper substrate 2, and the non-display area is attached to the non-display area 22 on the upper substrate 2; the non-display area includes an electrical transfer area 19, and the electrical transfer area 19 corresponds to an electrical transfer material 23 on the upper substrate 2.
The invention changes the whole set of customized development of the traditional display into the combination of a public driving mother board and a customized upper substrate mother board, and the mould of the public driving mother board is shared and can be cut according to the required size and shape like white paper. At least one unique mask is used for manufacturing the customized upper substrate motherboard, and the design of the mask is related to the shape and the size of the target display to be manufactured and the selected drive IC.
The invention mainly aims at application scenes that the size and the shape are scattered but the resolution (or the size of a single pixel) is not specially required, and the driving substrate which needs a plurality of masks in the display is manufactured into a universal driving motherboard according to a common resolution (such as 250 PPI), so that the driving substrate is generalized. The driver ICs, which are conventionally located on the driver sub-substrate, are transferred onto the upper substrate. Originally, nearly ten sets of masks are needed, and one to two sets of masks are only needed to be newly developed on the upper substrate, so that the development cost can be greatly reduced, and the development period can be shortened. The number of newly developed masks is reduced, the development cost is greatly reduced, the development and production processes are obviously accelerated, and the inventory risk is reduced.
Claims (1)
1. A new display making process that can share the mask, said process adopts and makes the mother board of driver and mother board of upper base plate separately, then drive mother board and mother board of upper base plate to laminate, then drive mother board and mother board of upper base plate to cut apart in the state of laminating, form the single display formed by single driver sub-base plate and single upper base plate, and drive IC; the method is characterized in that:
when a drive mother board is manufactured, firstly, a common drive mother board which comprises a TFT transistor, a scanning circuit and a data circuit and does not contain a drive IC is manufactured; etching a plurality of holes corresponding to the scanning lines and the data lines on the common drive mother board, and then manufacturing conductive contacts in the holes;
When the upper substrate mother board is manufactured, customizing unit blocks according to the size of a required target display, dividing a display area and a non-display area on each unit block, printing a corresponding drive IC circuit on the non-display area, and fixing the drive IC, wherein the drive IC is electrically connected with the drive IC circuit;
when the driving mother board is pressed with the upper substrate mother board, besides coating the edge sealing rubber frame, an electrical transfer material is added between the driving mother board and the upper substrate mother board, and the conductive contact is electrically transferred and connected with the driving IC circuit;
etching at least one corresponding hole in corresponding sections of a scanning line and a data line corresponding to each TFT transistor on a common drive mother board respectively;
the electric transfer between the driving motherboard and the upper substrate motherboard is realized by coating and curing a conductive adhesive or pasting an anisotropic conductive film; and conductive contacts are formed on the holes by depositing conductive materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611147522.XA CN106448611B (en) | 2016-12-13 | 2016-12-13 | Novel display capable of sharing mask and manufacturing process thereof |
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| CN201611147522.XA CN106448611B (en) | 2016-12-13 | 2016-12-13 | Novel display capable of sharing mask and manufacturing process thereof |
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| CN106448611A CN106448611A (en) | 2017-02-22 |
| CN106448611B true CN106448611B (en) | 2022-08-16 |
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| CN110164935B (en) * | 2019-05-28 | 2022-04-29 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN110718200A (en) * | 2019-10-22 | 2020-01-21 | 南京熊猫电子制造有限公司 | Grid driving method of liquid crystal panel |
| CN111933653A (en) * | 2020-08-05 | 2020-11-13 | 上海天马微电子有限公司 | Display panel, preparation method thereof and display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079429A (en) * | 2006-05-24 | 2007-11-28 | Lg.菲利浦Lcd株式会社 | Thin film transistor array substrate and method for fabricating the same |
| CN204964952U (en) * | 2015-09-30 | 2016-01-13 | 信利半导体有限公司 | Display panel and LCD who uses this display panel |
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| KR100521277B1 (en) * | 2003-02-05 | 2005-10-13 | 삼성에스디아이 주식회사 | Flat Panel Display with Anode electrode layer as Power Supply Layer and Fabrication Method thereof |
| CN201548776U (en) * | 2009-09-29 | 2010-08-11 | 深圳市国显科技有限公司 | Testing jig for FOG liquid crystal display |
| CN102289115B (en) * | 2010-06-21 | 2014-08-20 | 北京京东方光电科技有限公司 | Method for manufacturing master board and TFT (Thin Film Transistor) array substrate |
| JP6326238B2 (en) * | 2014-02-06 | 2018-05-16 | 株式会社ジャパンディスプレイ | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079429A (en) * | 2006-05-24 | 2007-11-28 | Lg.菲利浦Lcd株式会社 | Thin film transistor array substrate and method for fabricating the same |
| CN204964952U (en) * | 2015-09-30 | 2016-01-13 | 信利半导体有限公司 | Display panel and LCD who uses this display panel |
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