CN1873487B - LCD faceplate, and manufacturing method - Google Patents
LCD faceplate, and manufacturing method Download PDFInfo
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- CN1873487B CN1873487B CN2005100747078A CN200510074707A CN1873487B CN 1873487 B CN1873487 B CN 1873487B CN 2005100747078 A CN2005100747078 A CN 2005100747078A CN 200510074707 A CN200510074707 A CN 200510074707A CN 1873487 B CN1873487 B CN 1873487B
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Abstract
The invention relates to a manufacture method for liquid display panel that injects the liquid crystal material into the paralleled baseboard and exposing the signal input points on the baseboard. Taking synchronization irradiation to the signal input point to make the stable liquid crystal molecule solidifying, thus, the damage to liquid crystal molecule would be decreased.
Description
Technical field
The present invention relates to a kind of display panels (Liquid Crystal Display Panel; LCD Panel) manufacture method particularly relates to and improves polymer stabilizing liquid crystal (Polymer-Stabilized LiquidCrystal; PSLC) manufacture method of the display panels of technology.
Background technology
Polymer stabilizing liquid crystal (Polymer-Stabilized Liquid Crystal; PSLC) be used for improveing the liquid crystal kenel, to improve answer speed.Please refer to Fig. 1, it is for illustrating the process flow diagram of available liquid crystal display unit (LiquidCrystal Cell) packaging technology.Liquid crystal display packaging technology 100 is being made thin film transistor (TFT) array (Thin Film Transistor Array respectively; TFT Array) behind substrate and colored filter (Color Filter) substrate, shown in step 101, on above-mentioned two substrates, is coated with alignment films (Alignment Film).Then, shown in step 103, carry out the orientation step of alignment films.Shown in step 105, be coated with the step of frame glue (Sealant) then, just coating frame glue on thin-film transistor array base-plate or colored filter substrate.
Afterwards, at (the One Drop Filling that instils; ODF) carry out step 111 in the formula system 110 to step 117.Shown in step 111, utilize drip to inject the step of liquid crystal material, liquid crystal material is dropped on the colored filter substrate, wherein liquid crystal material comprises liquid crystal molecule and small amount of polymer monomer at least.Then, two substrates are carried out the contraposition pressing, shown in step 113.Then, shown in step 115, utilize the ultraviolet light of the first ultraviolet light energy and liquid crystal mask to carry out the photocuring step, make the frame adhesive curing after, heat-treat step again, in order to do frame glue is solidified further, shown in step 117.After finishing above-mentioned steps, shown in step 120, carry out the cutting of substrate, and then carry out the polymer stabilizing liquid crystal process, shown in step 130, it applies appropriate voltage and shines the ultraviolet light of the second ultraviolet light energy liquid crystal material under the situation that applies electric field, make polymer monomer form polymkeric substance with the stabilizing liquid crystal molecule, wherein the second ultraviolet light energy is less than the first ultraviolet light energy.After finishing the polymer stabilizing liquid crystal process, shown in step 140, the inspection step of lighting a lamp is used and is checked whether defectiveness of display panels, checks that as for detailed lighting a lamp step is then in discussing after a while.
See also Fig. 2, for illustrating the synoptic diagram of polymkeric substance and liquid crystal molecule.When applying the liquid crystal molecule 203 of voltage 205 in substrate 201, liquid crystal molecule 203 can rotate to stable state, and this stable state is LCD when being subjected to driven, the ordered state of liquid crystal molecule 203.When applying voltage 205, cooperate irradiating ultraviolet light 207, the polymer monomer in the liquid crystal material can carry out photopolymerization reaction and form polymkeric substance 209, makes liquid crystal molecule 203 be stable at predetermined angular, helps the orientation of liquid crystal molecule 203.After LCD completes, when applying operating voltage in polymkeric substance 209 and liquid crystal molecule 203, will be quicker through polymer stabilizing liquid crystal molecule 203 towards predetermined angular, the answer speed of LCD is shortened.
In order to cooperate above-mentioned arts demand, display panels also disposes driving circuit.See also Fig. 3, it is the synoptic diagram that illustrates the driving circuit of available liquid crystal display panel.Generally speaking, display panels 300 comprises opposing substrates 301 parallel to each other and substrate 303 at least, and can be provided with frame glue between substrate 301 and the substrate 303.Substrate 303 is provided with shading region 305 and the photic zone 307 by the colored filter definition at least.At least dispose many data circuits 315 parallel to each other and many grid circuits 317 parallel to each other on the substrate 301, wherein these data circuits 315 are orthogonal with these grid circuits 317.At least one signal input line of configuration road on the substrate 301, in order to couple with data circuit 315 or grid circuit 317, wherein the signal input line road extends to the edge of substrate 301, after substrate 301 and substrate 303 contraposition pressings, to expose signal input circuit, signal input point A or the signal input point B of part.Typical signal input point A and signal input point B are test electrode.The plotted point of signal input line and each data circuit 315 or each grid circuit 317 also has converting unit 319, and this converting unit can be thin film transistor (TFT).
When existing display panels 300 when carrying out the polymer stabilizing liquid crystal process, for example utilize prod (Probe) from signal input point A and signal input point B input voltage, make liquid crystal molecule stable to predetermined angular.And the lighting a lamp when checking step of available liquid crystal display panel 300, the signal that also utilizes prod for example to use from signal input point A and signal input point B input checking, input to data circuit 315 and grid circuit 317 respectively via converting unit 319, by lighting display panels 300 to check its lightness, contrast and whether defectiveness, for example bad point, bad line etc.
In brief, see through above-mentioned drip and inject liquid crystal process and polymer stabilizing liquid crystal process, though make that the reaction velocity of display panels is faster and simplify technology, yet the polymer stabilizing liquid crystal process must be bought more separately or change by other machine and be carried out this technology.Moreover in above-mentioned liquid crystal display packaging technology, liquid crystal molecule must pass through secondary ultraviolet photoetching step, is respectively shown in the photocuring step (step 115) and polymer stabilizing liquid crystal process (step 130) of Fig. 1.Only, the ultraviolet photoetching number of times is many more, and is also big more to the injury of liquid crystal molecule.
Therefore, be necessary to provide a kind of manufacture method of display panels, with the cost that reduces the technology machine, reduce the ultraviolet photoetching step, simplify technology and better display panels is provided.
Summary of the invention
One of purpose of the present invention is exactly the manufacture method that discloses a kind of display panels, and it utilizes two substrates parallel to each other, and exposes the signal input point on the substrate.After utilizing instillation (ODF) method to inject liquid crystal material, can apply voltage and synchronous irradiating ultraviolet light from the signal input point that exposes, form polymkeric substance and stabilizing liquid crystal molecule and photocuring frame glue to make polymer monomer simultaneously.Thus, not only reduce the ultraviolet photoetching step, can simplify technology again and the display panels of better wide viewing angle is provided to reduce injury to liquid crystal molecule.
The above-mentioned purpose according to the present invention proposes a kind of manufacture method of display panels, comprises at least: at first, provide two substrates, wherein be provided with frame glue at least on the substrate; Secondly, the dispenser method material coat this two substrate one on, wherein this liquid crystal material comprises liquid crystal molecule and polymer monomer at least; Then, carry out contraposition pressing step, make this two substrate parallel to each other and expose signal input point on the substrate; And apply voltage and synchronous irradiating ultraviolet light from the signal input point, form polymkeric substance and stabilizing liquid crystal molecule and photocuring frame glue to make polymer monomer simultaneously.
According to one embodiment of the present invention, above-mentioned voltage is between 1 volt to 20 volts.
According to one embodiment of the present invention, wherein apply voltage and synchronously after the step of irradiating ultraviolet light, also comprise at least and heat-treat step above-mentioned, use heat curing frame glue.
According to one embodiment of the present invention, behind above-mentioned heat treatment step, also can be by the converting unit on signal input point input signal to a substrate, with the inspection step of lighting a lamp.
Use the manufacture method of above-mentioned display panels, carry out polymer stabilizing liquid crystal process and photocuring step synchronously, and the sweep signal that the step utilization signal input point input checking identical with the polymer stabilizing liquid crystal process used is checked in follow-up lighting a lamp, thus, not only reduce the ultraviolet photoetching step to reduce injury to liquid crystal molecule, can simplify the cost of technology and reduction technology machine again, and better display panels is provided.
Description of drawings
Fig. 1 is the process flow diagram that illustrates available liquid crystal display unit packaging technology;
Fig. 2 is the synoptic diagram that illustrates polymkeric substance and liquid crystal molecule;
Fig. 3 is the synoptic diagram that illustrates the driving circuit of available liquid crystal display panel;
Fig. 4 is the process flow diagram that illustrates liquid crystal display packaging technology according to one preferred embodiment of the present invention;
Fig. 5 is the synoptic diagram that illustrates the driving circuit of the display panels of another preferred embodiment according to the present invention; And
Fig. 6 is the synoptic diagram of driving circuit that illustrates the display panels of another preferred embodiment of the present invention.
The simple symbol explanation
100: liquid crystal display packaging technology 101: the step of coating alignment films
103: the orientation step 105 of alignment films: the step of coating frame glue
110: instillation formula system
111: utilize drip to inject the step of liquid crystal material
113: contraposition pressing step 115: photocuring step
117: heat treatment step 120: cutting step
130: polymer stabilizing liquid crystal process 140: the inspection step of lighting a lamp
201: substrate 203: liquid crystal molecule
205: voltage 207: ultraviolet light
209: polymkeric substance
300: display panels 301: substrate
303: substrate 305: shading region
307: photic zone 311: data driver
313: gate drivers 315: data circuit
317: trace wiring 319: converting unit
400: liquid crystal display packaging technology 401: the step of coating alignment films
403: the orientation step 405 of alignment films: the step of coating frame glue
410: instillation formula system
411: utilize drip to inject the step of liquid crystal material
413: contraposition pressing step
415: carry out polymer stabilizing liquid crystal process and photocuring step synchronously
417: heat treatment step 420: cutting step
422: light a lamp and check step 500: display panels
501: substrate 503: substrate
505: shading region 507: photic zone
511: data driver 513: gate drivers
515: data circuit 517: trace wiring
519: pixel cell 521: signal providers
523: signal providers 601: substrate
603: substrate A: the signal input point
B: signal input point M: signal input point
M ': signal input point N: signal input point
N ': signal input point D: predeterminable range
Embodiment
The manufacture method of display panels of the present invention is to utilize drip that liquid crystal material is injected two substrates parallel to each other, and expose signal input point on the substrate, apply voltage and synchronous irradiating ultraviolet light from the signal input point then, to make polymer monomer form polymkeric substance and stabilizing liquid crystal molecule and photocuring frame glue simultaneously, not only reduce the ultraviolet photoetching step to reduce injury, can simplify technology again liquid crystal molecule.Below cooperate Fig. 4 to Fig. 5, describe the manufacture method of display panels of the present invention in detail.
See also Fig. 4, it is the process flow diagram of packaging technology that illustrates the liquid crystal display of one embodiment of the present invention.Liquid crystal display packaging technology 400 is coated with alignment films on for example thin-film transistor array base-plate and colored filter substrate, shown in step 401.In one embodiment of the present invention, be provided with converting unit on the thin-film transistor array base-plate at least and be positioned at the binary signal input point of homonymy, wherein one is the signal of video signal input point for example, and another person for example is the sweep signal input point.Yet in another embodiment of the present invention, the binary signal input point also can be positioned at not homonymy, and this is in describing in detail after a while.Before the coating alignment films, those skilled in the art are when understanding orientation that above-mentioned substrate can be provided with various arrangements in advance with works for example thrust or slit, at this needless to say.
Then, shown in step 403, can utilize for example modes such as friction orientation (Rubbing), light (UV Photo) orientation, ion beam (Ion Beam) orientation, carry out the orientation of alignment films.It should be noted that the manufacturing of some LCD, vertical orientated (the Multi-Domain VerticalAlignment of for example many quadrants; MVA) LCD does not need step 403.Then, shown in step 405, be coated with the step of frame glue, just coating frame glue on thin-film transistor array base-plate or colored filter substrate.
Afterwards, in instillation formula system 410, carry out step 411 to step 417.Shown in step 411, utilize drip to inject liquid crystal material, be that the dispenser method material is coated on thin-film transistor array base-plate or the colored filter substrate, wherein liquid crystal material comprises liquid crystal molecule and small amount of polymer monomer at least, and wherein polymer monomer can for example be light-cured type monomer (Photo-Curing Monomer) or thermohardening type (Thermosetting) monomer.
Subsequently, shown in step 413, with two substrates, the substrate that do not wait of two block sizes for example carries out the contraposition pressing and exposes signal input point on the thin-film transistor array base-plate.
Next, shown in step 415, carry out polymer stabilizing liquid crystal process and photocuring step synchronously, from the signal input point liquid crystal material is applied voltage, voltage can serve as preferred with about 2 volts to 6 volts so for example between 1 volt to 20 volts, make liquid crystal molecule be stable at predetermined angular, and synchronous irradiating ultraviolet light, so that polymer monomer carries out photopolymerization reaction and forms polymkeric substance, and photocuring frame glue simultaneously.Above-mentioned employed ultraviolet light energy is decided on employed polymer monomer.In addition, also can use the multiple polymers monomer to form a blended polymer.
After finishing above-mentioned steps, shown in step 417, heat-treat step, in order to do frame glue is solidified further.Then, shown in step 420, carry out the cutting of substrate.At last, for another example shown in the step 422, the inspection step of lighting a lamp, the signal input point that utilization exposes will be checked the signal of usefulness, input to grid circuit and data circuit respectively via converting unit, by lighting display panels to check its lightness, contrast and whether defectiveness, for example bad point, bad line etc.
In order to cooperate above-mentioned technology, the present invention also provides a kind of driving circuit of display panels.See also Fig. 5, it is the synoptic diagram of driving circuit that illustrates the display panels of one embodiment of the present invention.Generally speaking, display panels 500 comprises opposing substrates 503 parallel to each other and substrate 501 at least, and can be provided with frame glue between substrate 503 and the substrate 501.Substrate 503 is provided with shading region 505 and the photic zone 507 by the colored filter definition at least.At least dispose many data circuits 515 parallel to each other and many grid circuits 517 parallel to each other on the substrate 501, wherein these data circuits 515 are orthogonal with these grid circuits 517.Also dispose at least one signal input line road on the substrate 501, in order to couple with data circuit 515 or grid circuit 517, wherein the signal input line road extends to the edge of substrate 501, after substrate 501 and substrate 503 contraposition pressings, to expose signal input circuit, signal input point M and the signal input point N of part.Signal input point M of the present invention and signal input point N can be test electrode and extend at least one circuit, use and are electrically coupled to external signal supply 521 and external signal supply 523 respectively.The plotted point of signal input line and each grid circuit or each data circuit also has converting unit 519, and this converting unit 519 can be thin film transistor (TFT).
As for display panels 500 of the present invention when carrying out polymer stabilizing liquid crystal process and photocuring step synchronously, can utilize signal providers 523 voltage to be inputed to data circuit 515 and grid circuit 517 from signal input point M and signal input point N, make liquid crystal molecules tilt to predetermined angular liquid crystal material is applied voltage, and irradiating ultraviolet light make polymer monomer form polymkeric substance and photocuring frame glue simultaneously.
In addition, finish carry out polymer stabilizing liquid crystal process and photocuring step synchronously after, display panels is heat-treated the step of step and cutting substrate.Afterwards, whether the display panels inspection step of promptly lighting a lamp is with the lightness of checking display panels, contrast and defectiveness, for example bad point, bad line etc.
When driving circuit of the present invention was applied to the manufacturing of the display panels more than two or two, signal input point M and signal input point N more can be extended out at least one circuit, used and were electrically coupled to external signal supply 521 and external signal supply 523 respectively.See also Fig. 6, it is the synoptic diagram of driving circuit that illustrates the display panels of another preferred embodiment of the present invention.In this example, substrate 601 has defined for example zone of four display panels with substrate 603, signal input point M and signal input point N also can be extended out at least one circuit, use and be electrically coupled to signal input point M ' and signal input point N ' respectively, with from signal input point M ' and signal input point N ' input voltage or signal.The quantity of definition display panels is not limit on aforesaid substrate 601 and the substrate 603, when utilizing the manufacturing of the display panels more than two or two such as, all applicable to the present invention.
In other words, the present invention is in order to carry out polymer stabilizing liquid crystal process and photocuring step synchronously and follow-up lighting a lamp checked the needs of step, directly on substrate, expose required signal input point in advance, facilitate the use the sweep signal of outside signal providers input voltage and inspection usefulness.
By the invention described above preferred embodiment as can be known, use the manufacture method of display panels of the present invention, its advantage is to carry out synchronously polymer stabilizing liquid crystal process and photocuring step, thus, not only reduce the ultraviolet photoetching step to reduce injury to liquid crystal molecule, can simplify the cost of technology and reduction technology machine again, and better display panels is provided.
Though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; those skilled in the art can do a little change and retouching without departing from the spirit and scope of the present invention, thus protection scope of the present invention should with accompanying Claim the person of being defined be as the criterion.
Claims (5)
1. the manufacture method of a display panels comprises at least:
One first substrate and one second substrate are provided, and this first substrate and this second substrate are provided with a frame glue on one of them at least;
Instil a liquid crystal material in this first substrate and this second substrate on one of them, and wherein this liquid crystal material comprises a liquid crystal molecule and a polymer monomer at least;
Carry out a contraposition pressing step, make this first substrate and this second substrate parallel to each other and expose a signal input point; And
Apply a voltage and shine a ultraviolet light synchronously from this signal input point, to make this polymer monomer form a polymkeric substance simultaneously and to solidify this frame glue.
2. the manufacture method of display panels as claimed in claim 1, wherein this voltage is between 1 volt to 20 volts.
3. the manufacture method of display panels as claimed in claim 1, wherein this voltage is between 2 volts to 6 volts.
4. the manufacture method of display panels as claimed in claim 1 wherein applies this voltage and synchronously after the step of this ultraviolet light of irradiation, also comprises at least at this:
Carry out a heat treatment step, use this frame glue of heat curing.
5. the manufacture method of display panels as claimed in claim 4 wherein behind this heat treatment step, also comprises at least:
Carry out a cutting step; And
Carry out the inspection step of lighting a lamp, this signal input point is imported a signal to carry out this inspection step of lighting a lamp certainly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100747078A CN1873487B (en) | 2005-05-31 | 2005-05-31 | LCD faceplate, and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100747078A CN1873487B (en) | 2005-05-31 | 2005-05-31 | LCD faceplate, and manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN1873487A CN1873487A (en) | 2006-12-06 |
| CN1873487B true CN1873487B (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2005100747078A Expired - Fee Related CN1873487B (en) | 2005-05-31 | 2005-05-31 | LCD faceplate, and manufacturing method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101663563B1 (en) * | 2009-12-24 | 2016-10-07 | 엘지디스플레이 주식회사 | Methode of fabricating liquid crystal display device |
| CN102385186A (en) * | 2011-11-18 | 2012-03-21 | 深圳市华星光电技术有限公司 | Liquid crystal panel as well as manufacture method and manufacture equipment of liquid crystal panel |
| CN103412429B (en) * | 2013-07-26 | 2016-12-28 | 京东方科技集团股份有限公司 | A kind of preparation method of display panels |
| CN104166281A (en) * | 2014-08-13 | 2014-11-26 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN105259691A (en) * | 2015-11-27 | 2016-01-20 | 深圳市华星光电技术有限公司 | Manufacturing method and system of liquid crystal panel and liquid crystal substrate |
| CN107390415A (en) * | 2017-09-01 | 2017-11-24 | 四川粤鸿显示技术有限公司 | TFT LCD liquid crystal display screen manufacture crafts |
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Effective date of registration: 20110825 Address after: Miaoli County, Taiwan, China Applicant after: Chimei Optoelectronics Co., Ltd. Address before: Tainan County, Taiwan, China Applicant before: Chimei Optoelectronics Co., Ltd. |
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