CN101726904B - Method for making liquid crystal panel - Google Patents
Method for making liquid crystal panel Download PDFInfo
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- CN101726904B CN101726904B CN2008102011664A CN200810201166A CN101726904B CN 101726904 B CN101726904 B CN 101726904B CN 2008102011664 A CN2008102011664 A CN 2008102011664A CN 200810201166 A CN200810201166 A CN 200810201166A CN 101726904 B CN101726904 B CN 101726904B
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Abstract
The invention provides a method for making a liquid crystal panel, which comprises: providing a first substrate having a plurality of active areas and peripheral areas surrounding the active areas, wherein a plurality of pixel structures and a plurality of data and scanning lines electrically connected with the pixel structures are arranged in each active area, and at least one first short-circuit rod and at least one second short-circuit rod, which are electrically connected with the data lines and the scanning lines respectively, are arranged in the peripheral area of each active area; providing a second substrate, wherein a liquid crystal layer comprising a liquid crystal material and a polymer monomer is formed between the first substrate and the second substrate; assembling the first and second substrates; cutting the second substrate to expose the first and second short-circuit rods; applying a voltage to the first and second short-circuit rods and irradiating ultraviolet light onto the assembled first and second substrates at the same time; and cutting the assembled first and second substrates to form a plurality of liquid crystal panels.
Description
Technical field
The present invention relates to a kind of liquid crystal panel manufacturing method, relate in particular to a kind of liquid crystal panel manufacturing method that can reduce production costs and simplify fabrication steps.
Background technology
The information communication industry has become main flow industry now, and particularly carry-along various communication shows the emphasis that product develops especially, and the flat-panel screens communication interface with information of behaving, so its development particular importance that seems.The technology that is applied in flat-panel screens at present mainly contains following several kinds: plasma display (plasma display panel; PDP), LCD (liquid crystal display; LCD), inorganic EL display (electro-luminescent display), light emitting diode (light emitting diode; LED), vacuum fluorescent display (vacuum fluorescent display), field-emitter display (fieldemission display, FED) and electrochromics display (electro-chromic display) etc.
Compared to other plane display technique, has compact, power saving, radiationless, full-color and the most skillful and universalness of LCD Technology of advantage such as be convenient for carrying.Mobile phone, language translation machine, digital camera, digital camera, personal digital assistant (personal digital assistant, PDA), mobile computer even the desktop display its range of application is all arranged.
The main processing procedure of LCD comprises making and LCD MODULE (liquid crystal module, assembling LCM) of liquid crystal panel (liquid crystal panel).Liquid crystal panel manufacturing method mainly is that liquid crystal is sealed up for safekeeping between color filter and the plurality of groups of substrates of thin-film transistor as infrabasal plate as upper substrate.
In addition; In the process of making liquid crystal panel, can use a kind of polymer support that is called to aim at (polymer sustain alignment, technology PSA); Just the liquid crystal that will be mixed with high polymer monomer seal up for safekeeping between upper substrate and infrabasal plate and Yu Zuli with cut feed voltage (promptly driving panel) after splitting in irradiating ultraviolet light; Make high polymer monomer produce polyreaction, it can produce the effect of orientation to liquid crystal molecule, thereby does not need the additional configuration alignment film.The PSA technology can be so that Liquid Crystal Molecules Alignment be comparatively stable, and does not need projection (bump) structure, therefore can not make liquid crystal panel produce the problem of the dark line of bright attitude and dark attitude light leak, and can promote the panel penetrance and reduce dark attitude briliancy.
In addition; If with the formula injection method that drips (one drop fill; ODF) improve the bad problem of above-mentioned diffusion; Owing to when using UV-irradiation, must drive panel earlier, therefore need in panel sets upright with cut split after the step of extra increase panel driving and UV-irradiation, thereby increased process complexity.
In addition, owing to use the PSA technology in order to drive panel (bestowing voltage), must on panel, form conducting strip in addition usually, and the conducting strip that is disposed at face plate edge is come out according to the driving of ultraviolet light and collocation panel.Therefore,, except needs add the size of large substrates, also need other processing procedure, thereby cause production cost to improve and the fabrication steps increase so that conducting strip comes out for this conducting strip.
Summary of the invention
In view of above-mentioned defective, the object of the present invention is to provide a kind of liquid crystal panel manufacturing method, the method need not changed the size of substrate, to reduce production costs.
Another object of the present invention is to provide a kind of liquid crystal panel manufacturing method, can simplify the fabrication steps of liquid crystal panel.
The present invention proposes a kind of liquid crystal panel manufacturing method.At first, first substrate is provided.First substrate has a plurality of active area and the outer peripheral areas that centers on active area; Many data lines that wherein be provided with a plurality of dot structures in each active area, electrically connect with dot structure and multi-strip scanning line; And be provided with at least one first short-circuit rods (shorting bar) and at least one second short-circuit rods in the outer peripheral areas around each active area; Wherein the data line and first short-circuit rods electrically connect, and sweep trace and the electric connection of second short-circuit rods.Then, second substrate is provided.Then, between first substrate and second substrate, form liquid crystal layer, wherein liquid crystal layer comprises liquid crystal material and high polymer monomer.Then, upright first substrate of group and second substrate.Subsequently, cut second substrate, to expose first short-circuit rods and second short-circuit rods.Then, first short-circuit rods and second short-circuit rods are applied voltage, simultaneously to organizing first substrate and the second substrate irradiating ultraviolet light after standing.Afterwards, first substrate and second substrate after the cutting group is upright are to form a plurality of liquid crystal panels.
According to the described liquid crystal panel manufacturing method of the embodiment of the invention, the above-mentioned method that on second substrate, forms liquid crystal layer for example can be formula injection method or the hydrocone type injection method of dripping.
According to the described liquid crystal panel manufacturing method of the embodiment of the invention; Above-mentioned after forming liquid crystal layer and before upright first substrate of group and second substrate, can also be only on first substrate, only at formation frame glue on second substrate or on first substrate and second substrate.
According to the described liquid crystal panel manufacturing method of the embodiment of the invention, the above-mentioned group of step of founding first substrate and second substrate more comprises the frame adhesive curing.
According to the described liquid crystal panel manufacturing method of the embodiment of the invention, the method for above-mentioned curing frame glue for example is thermal curing method or ultraviolet light polymerization method.
The present invention proposes a kind of liquid crystal panel manufacturing method in addition, at first, first substrate is provided.First substrate has a plurality of active area and the outer peripheral areas that centers on active area; Many data lines that wherein be provided with a plurality of dot structures in each active area, electrically connect with dot structure and multi-strip scanning line; And be provided with at least one first short-circuit rods and at least one second short-circuit rods in the outer peripheral areas around each active area; Wherein the data line and first short-circuit rods electrically connect, and sweep trace and the electric connection of second short-circuit rods.Then, second substrate is provided.Then, between first substrate and second substrate, form liquid crystal layer, wherein liquid crystal layer comprises liquid crystal material and high polymer monomer.Then, upright first substrate of group and second substrate.Subsequently, first substrate and second substrate after the cutting group is upright forming a plurality of liquid crystal panels, and expose first short-circuit rods and second short-circuit rods of each liquid crystal panel.Afterwards, first short-circuit rods and second short-circuit rods of each liquid crystal panel applied voltage, simultaneously to the liquid crystal panel irradiating ultraviolet light.
When the present invention carries out testing electrical property at cutting substrate to expose short-circuit rods; Simultaneously the high polymer monomer that is sealed between upper substrate and the infrabasal plate is carried out UV-irradiation; Therefore can carry out testing electrical property simultaneously; Reach the purpose that drives panel and high polymer monomer produced polyreaction; And need in successive process, not form the step that conducting strip drives panel in addition, and need be in successive process rotary plate or make upper substrate in advance with different size and infrabasal plate so that conducting strip is come out.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs., elaborates as follows.
Description of drawings
Figure 1A to Fig. 1 D is the making flow process sectional view according to the liquid crystal panel that the embodiment of the invention illustrated.
Fig. 2 A to Fig. 2 B is the making flow process sectional view according to the liquid crystal panel that another embodiment of the present invention illustrated.
Fig. 3 is the synoptic diagram according to the liquid crystal panel that another embodiment of the present invention illustrated.
Embodiment
Figure 1A to Fig. 1 D is the making flow process sectional view according to the liquid crystal panel that the embodiment of the invention illustrated.
At first, please with reference to Figure 1A, substrate 100 is provided.Substrate 100 can be plurality of groups of substrates of thin-film transistor.Substrate 100 has a plurality of active area 102 and the outer peripheral areas 104 that centers on active area 102.Active area 102 is the zones in order to show image, then disposes relevant circuit (not illustrating among the figure) on the outer peripheral areas 104, shows to drive active area 102.In addition; Many the data lines 106 and multi-strip scanning line 108 that are provided with a plurality of dot structure 105 in each active area 102, electrically connect with dot structure 105, and be provided with first short-circuit rods 110 and second short-circuit rods 112 in the outer peripheral areas 104 around each active area 102.First short-circuit rods 110 is electrically connected at data line 106, and second short-circuit rods 112 is electrically connected at sweep trace 108.First short-circuit rods 110 and second short-circuit rods 112 are employed assemblies when in making the process of liquid crystal panel, liquid crystal panel being carried out electric test.That is to say, as long as (flexible printed circuit FPC) is electrically connected at first short-circuit rods 110 and second short-circuit rods 112 can carry out testing electrical property to liquid crystal panel with probe or bendable printed circuit board (PCB).
Please continue with reference to Figure 1A, each dot structure 105 is electrically connected at a data line 106 and a sweep trace 108, to drive with sweep trace 108 by data line 106.Mainly have thin film transistor (TFT) 105a and pixel electrode 105b in each dot structure 105.
Special one what carry is in the present embodiment, only in outer peripheral areas 104, to form one first short-circuit rods 110 and one second short-circuit rods 112.Certainly, also can look actual demand in other embodiments and a plurality of short-circuit rods are set, and the configuration mode of these short-circuit rods also can there be various variation.For instance, the embodiment of short-circuit rods comprises outside (outer) short-circuit rods and inside (inner) short-circuit rods, and wherein a kind of reaching capable of using.In addition, the method to set up of above-mentioned dot structure 105, data line 106, sweep trace 108, first short-circuit rods 110 and second short-circuit rods 112 is known by having common knowledge the knowledgeable in this area, narrates no longer separately in this.
Then, please with reference to Figure 1B, substrate 114 is provided.Substrate 114 for example is a colored optical filtering substrates.In one embodiment, have a plurality of unit areas 115 on the colored optical filtering substrates 114, in each unit area 115, be formed with a colorized optical filtering array (not shown), it comprises a plurality of redness, green and a blue filter pattern and a black matrix".Then, on substrate 114, form frame glue 116, place the zone of liquid crystal layer on substrate 114, to cross desire.The material of frame glue 116 for example can be a high molecular polymer.Then, on substrate 114, form a liquid crystal layer 118, liquid crystal layer 118 comprise a liquid crystal material with a high polymer monomer.The method that on substrate 114, forms a liquid crystal layer 118 for example is formula injection method or the hydrocone type injection method of dripping; Wherein take place for fear of causing spreading bad problem carrying out bubble when hydrocone type is injected, therefore preferable mode is to use the formula injection method that drips.At length say, before the zone that liquid crystal layer 118 injection frame glue 116 are surrounded, earlier high polymer monomer is mixed with liquid crystal material, and then this potpourri is injected the zone that frame glue 116 is surrounded.Above-mentioned high polymer monomer is in the effect that can produce orientation through producing polyreaction behind the follow-up UV-irradiation to liquid crystal molecule, and this is the PSA technology of generally knowing.
In another embodiment, frame glue 116 also can be formed on the substrate 100 shown in Figure 1A, or is formed at simultaneously on the substrate 114 shown in the substrate 100 shown in Figure 1A and Figure 1B.Frame glue 116 that is to say, as long as can be sealed in liquid crystal layer 118 between substrate 100 and the substrate 114.In addition, know, have uniform spacing between substrate 100 and the substrate 114 to keep the display quality of liquid crystal panel, can also between substrate 100 and substrate 114, dispose clearance support in order to make as having common knowledge the knowledgeable in this area.
Then, please with reference to Fig. 1 C, upright substrate 100 of group and substrate 114.The upright method of group for example is first pressing substrate 100 and substrate 114.Then, utilize thermal curing method or ultraviolet light polymerization method that frame glue 116 is solidified.Subsequently, cutting substrate 114 is to expose first short-circuit rods 110 and second short-circuit rods 112 that is positioned on the substrate 100.Then, first short-circuit rods 110 and second short-circuit rods 112 are applied voltage, simultaneously to organizing the substrate 100 and substrate 114 irradiating ultraviolet light after standing, so that the high polymer monomers in the liquid crystal layer 118 produce polyreaction.At length say; At cutting substrate 114 with after exposing first short-circuit rods 110 and second short-circuit rods 112; Can apply voltage and irradiating ultraviolet light to first short-circuit rods 110 and second short-circuit rods 112, liquid crystal material produced the effect of orientation so that the high polymer monomers in the liquid crystal layer 118 produce polyreactions.Owing to generally in the manufacturing process of panel, will use short-circuit rods to come counter plate to carry out testing electrical property; And the present invention originally carried out the processing procedure of PSA with regard to already present short-circuit rods two substrates being organized directly utilize after upright, so the present invention does not need on substrate, to form in addition conducting strip.
In addition, in another embodiment, also can the first all short-circuit rods 110 be together in series, and the second all short-circuit rods 112 is together in series, as shown in Figure 3.Please with reference to Fig. 3, in the present embodiment, the first all short-circuit rods 110 and be connected to input pad 30 of connecting, and the second all short-circuit rods 112 and be connected to input pad 32 of connecting.In addition, input pad 34 is electrically connected to the common electrode (common electrode) that is positioned at substrate 114.Therefore, when cutting substrate 114, only need expose input pad 30,32,34 and get final product, and the input pad 30,32,34 that can pass through to be exposed drives all active area 102.
Afterwards, please with reference to Fig. 1 D, substrate 100 and substrate 114 after the cutting group is upright are to form a plurality of liquid crystal panels 120.
What is worth mentioning is; Because above-mentioned high polymer monomer is very easy to produce polyreaction because of the irradiation of light under general environment; Therefore preferably under the gold-tinted environment, carry out in the step of step to the irradiating ultraviolet light that liquid crystal and high polymer monomer 118 are provided, before carrying out the PSA processing procedure, just produce polyreaction to avoid high polymer monomer.
The foregoing description is after the two substrates group is upright; And two substrates is being cut with before forming a plurality of panel units; Just earlier the short-circuit rods on the substrate is bestowed voltage and two substrates is produced the processing procedure (PSA processing procedure) of polyreaction according to ultraviolet light to make the macromolecule unit; Just two substrates is cut afterwards, to form a plurality of panel units.
Fig. 2 A to Fig. 2 B is the making flow process sectional view according to the liquid crystal panel that another embodiment of the present invention illustrated; Wherein the described step of Fig. 2 A is to be connected on Figure 1B to carry out afterwards; Just this embodiment has carried out earlier after the step that Figure 1A and Figure 1B illustrated, and then carries out the step that Fig. 2 A is illustrated.Below description will be no longer the step that illustrated of repeated description Figure 1A and Figure 1B.
At first, please with reference to Fig. 2 A, the substrate 100 and the substrate 114 shown in Figure 1B shown in the upright Figure 1A of group.
Then; Please with reference to Fig. 2 B, substrate 100 and substrate 114 after the cutting group is upright are to form a plurality of liquid crystal panels 200; And in this cutting step, more comprise first short-circuit rods 110 and second short-circuit rods 112 that are positioned in each liquid crystal panel 200 on the substrate 100 are come out.Afterwards, the described step of similar Fig. 1 C applies voltage to first short-circuit rods 110 and second short-circuit rods 112, and simultaneously to liquid crystal panel 200 irradiating ultraviolet light, so that the high polymer monomer in the liquid crystal layer produces polyreaction.
In other words; The embodiment that Fig. 2 A to Fig. 2 B is illustrated accomplishes cutting and after forming a plurality of panel units, just respectively each panel unit is being bestowed voltage and shining ultraviolet light producing the processing procedure (PSA processing procedure) of polyreaction to make the macromolecule unit with the upright completion of two substrates group and with two substrates.Therefore in this embodiment, can be utilized in when carrying out the panel testing electrical property, carry out the PSA processing procedure simultaneously; Just; When utilizing short-circuit rods to bestow voltage when carrying out the testing electrical property of panel, make the panel irradiating ultraviolet light simultaneously, so that the high polymer monomer in the liquid crystal layer produces polyreaction.
Above-mentioned two embodiment are that the instance that four panel units are set on a substrate is explained, but the present invention's quantity of the panel unit on the restricting substrate not, it is mainly looked the size of panel size and decides.
In sum, the present invention utilizes the testing electrical property short-circuit rods that is used for that originally just designs in panel to carry out the PSA processing procedure.Just; When carrying out the PSA processing procedure, just directly on short-circuit rods, bestow voltage and carry out UV-irradiation, so that the high polymer monomer in the liquid crystal layer produces polyreaction; Thereby do not need to make in addition the step of conductive junction point or conducting strip, thereby can reduce the complexity of processing procedure.
In addition; The present invention utilizes the short-circuit rods that comes out in order to carry out testing electrical property in the general processing procedure to replace conducting strip; Therefore need be in successive process rotary plate or make in advance and have larger sized infrabasal plate to form conducting strip, reach the purpose of saving production cost and simplifying processing procedure.In addition, the embodiment of short-circuit rods has comprised external short circuit bar and internal short-circuit bar, and wherein a kind of mode capable of using is reached the present invention.
Though the present invention discloses as above with embodiment; Right its is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under any; Do not breaking away from the spirit and scope of the present invention, when can doing a little change and retouching, so protection scope of the present invention should be as the criterion with what claim was defined.
Claims (11)
1. a liquid crystal panel manufacturing method is characterized in that, comprising:
One first substrate is provided; Said first substrate has a plurality of active area and an outer peripheral areas that centers on those active area; Many data lines that wherein be provided with a plurality of dot structures in each more said active area, electrically connect with more said dot structure and multi-strip scanning line; And be provided with at least one first short-circuit rods and at least one second short-circuit rods in the said outer peripheral areas around each more said active area; More wherein said data line and this first short-circuit rods electrically connect, and more said sweep trace and the electric connection of said second short-circuit rods;
One second substrate is provided;
Between said first substrate and said second substrate, form a liquid crystal layer, wherein this liquid crystal layer comprises a liquid crystal material and a high polymer monomer;
Upright said first substrate of group and said second substrate;
Cut said second substrate, to expose said at least one first short-circuit rods and said at least one second short-circuit rods;
Said at least one first short-circuit rods and said at least one second short-circuit rods are applied voltage, simultaneously to organizing said first substrate and the said second substrate irradiating ultraviolet light after standing; And
Said first substrate and said second substrate after the cutting group is upright are to form a plurality of liquid crystal panels.
2. liquid crystal panel manufacturing method as claimed in claim 1 is characterized in that, the method that forms said liquid crystal layer comprises drip formula injection method or hydrocone type injection method.
3. liquid crystal panel manufacturing method as claimed in claim 2; It is characterized in that; After forming said liquid crystal layer and before upright said first substrate of group and said second substrate, only more comprise on said first substrate, only at formation one frame glue on said second substrate or on said first substrate and said second substrate.
4. liquid crystal panel manufacturing method as claimed in claim 3 is characterized in that, the step of upright said first substrate of group and said second substrate also comprises solidifies said frame glue.
5. liquid crystal panel manufacturing method as claimed in claim 4 is characterized in that, the method for solidifying said frame glue comprises thermal curing method or ultraviolet light polymerization method.
6. liquid crystal panel manufacturing method as claimed in claim 1 is characterized in that, said second substrate is a colored optical filtering substrates.
7. a liquid crystal panel manufacturing method is characterized in that, comprising:
One first substrate is provided; Said first substrate has a plurality of active area and an outer peripheral areas that centers on those active area; Many data lines that wherein be formed with a plurality of dot structures in each more said active area, electrically connect with more said dot structure and multi-strip scanning line; And be formed with at least one first short-circuit rods and at least one second short-circuit rods in the said outer peripheral areas around each more said active area; More wherein said data line and said first short-circuit rods electrically connect, and more said sweep trace and the electric connection of said second short-circuit rods;
One second substrate is provided;
Between said first substrate and said second substrate, form a liquid crystal layer, wherein said liquid crystal layer comprises a liquid crystal material and a high polymer monomer;
Upright said first substrate of group and said second substrate;
Said first substrate and said second substrate after the cutting group is upright forming a plurality of liquid crystal panels, and expose said at least one first short-circuit rods and said at least one second short-circuit rods of each more said liquid crystal panel; And
Said at least one first short-circuit rods and said at least one second short-circuit rods to each more said liquid crystal panel apply voltage, simultaneously to more said liquid crystal panel irradiating ultraviolet light.
8. liquid crystal panel manufacturing method as claimed in claim 7 is characterized in that, the method that forms said liquid crystal layer comprises drip formula injection method or hydrocone type injection method.
9. liquid crystal panel manufacturing method as claimed in claim 8; It is characterized in that; After forming said liquid crystal layer and before upright said first substrate of group and said second substrate, only also comprise on said first substrate, only at formation one frame glue on said second substrate or on said first substrate and said second substrate.
10. liquid crystal panel manufacturing method as claimed in claim 9 is characterized in that, the step of upright said first substrate of group and said second substrate more comprises solidifies said frame glue.
11. liquid crystal panel manufacturing method as claimed in claim 10 is characterized in that, the method for solidifying said frame glue comprises thermal curing method or ultraviolet light polymerization method.
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| CN2008102011664A CN101726904B (en) | 2008-10-14 | 2008-10-14 | Method for making liquid crystal panel |
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| CN2008102011664A CN101726904B (en) | 2008-10-14 | 2008-10-14 | Method for making liquid crystal panel |
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| CN101726904B true CN101726904B (en) | 2012-02-22 |
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| CN102736302B (en) * | 2012-06-26 | 2016-03-30 | 深圳市华星光电技术有限公司 | The manufacture method of liquid crystal indicator, display panels and equipment |
| TWI514035B (en) * | 2012-10-19 | 2015-12-21 | Innolux Corp | Liquid crystal display panel and manufacturing method of the same |
| CN103777390B (en) * | 2012-10-19 | 2017-03-22 | 群康科技(深圳)有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN112684626B (en) * | 2020-12-29 | 2023-06-27 | 滁州惠科光电科技有限公司 | Protection architecture, various membrane base plate, array substrate and liquid crystal display panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912699A (en) * | 2006-08-28 | 2007-02-14 | 友达光电股份有限公司 | Method for manufacturing liquid crystal panel |
| CN101054505A (en) * | 2007-05-30 | 2007-10-17 | 友达光电股份有限公司 | Single hot set property frame gum |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912699A (en) * | 2006-08-28 | 2007-02-14 | 友达光电股份有限公司 | Method for manufacturing liquid crystal panel |
| CN101054505A (en) * | 2007-05-30 | 2007-10-17 | 友达光电股份有限公司 | Single hot set property frame gum |
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