CN100381900C - Liquid crystal display panel and manufacturing method thereof - Google Patents
Liquid crystal display panel and manufacturing method thereof Download PDFInfo
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- CN100381900C CN100381900C CNB200310100796XA CN200310100796A CN100381900C CN 100381900 C CN100381900 C CN 100381900C CN B200310100796X A CNB200310100796X A CN B200310100796XA CN 200310100796 A CN200310100796 A CN 200310100796A CN 100381900 C CN100381900 C CN 100381900C
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Abstract
The present invention relates to a liquid crystal display panel which mainly comprises a first base plate, a second base plate, a liquid crystal layer which is clamped between the first base plate and the second base plate, and a plurality of first projecting objects which are arranged on the first base plate and are used for keeping the interval of a first unit between the first base plate and the second base plate. The present invention is characterized in that the first base plate is additionally provided with a plurality of second projecting objects, and the second projecting objects are used for keeping the interval of a second unit between the first base plate and the second base plate when external force is exerted on the liquid crystal display panel, wherein the interval of a second unit is less than the interval of a first unit; when the external force is not exerted on the liquid crystal display panel, a gap is formed between each second projecting object and the second base plate. The present invention also provides a method for manufacturing the liquid crystal display panel.
Description
Technical field
The present invention relates to a kind of display panels and manufacture method thereof, particularly a kind ofly be instilled into display panels and the manufacture method thereof that (one drop fill) processing procedure is made with one.
Background technology
Shown in Fig. 1 a and Fig. 1 b, existing display panels 100a and 100b respectively comprise two and first substrate 102 (being colored filter substrate) and second substrate 104 (being thin film transistor base plate) and one deck liquid crystal layer 106 are set face-to-face are folded between first substrate 102 and second substrate 104.In addition, be provided with several introns (spacer) 108 between these two first substrates 102 and second substrate 104, make the slit of the preset distance of being separated by between these two substrates.
In the processing procedure of panel of LCD, general elder generation is combined into two substrates Unit one (cell) and only stays a liquid crystal injecting port with encapsulant, again liquid crystal material is injected the close gap of the unit that this two substrates forms, the liquid crystal injecting port on this unit of finally sealed.Before this two substrates of assembling, introns (spacers) be placed on substrate one of them in order to keep an accurate cell gap (between the 4-10 millimeter) between the two substrates.Then substrate is aligned and solidify the sealing material.After the two substrates assembling is finished, this liquid crystal material is injected in the gap of introns formation.Then, push the two substrates outside and reach this predefined cell gap up to substrate distance.With unnecessary liquid crystal after this cell edges is wiped, be coated with a sealant, epoxy resin for example seals this filling port and with its curing.
In aforesaid existing method, the liquid crystal material injection rate IR not too needs accurately to be controlled, because can push step by this unnecessary liquid crystal material is extruded via this liquid crystal injecting port, liquid crystal material unnecessary on the unit is wiped again.
Yet, a kind of new technology is proposed at present, No. 5263888 patent disclosed one is instilled into (one drop fill according to the U.S. that is presented to people such as Ishihara, abbreviation ODF) method, adopt in advance on substrate dispenser method material to cover the processing procedure of another substrate again, reduce the operation number of display panels processing procedure significantly, increase and make efficient.But, the instillation step of the liquid crystal material of this method is before two substrates of sealing, therefore accurately control of the amount of the liquid crystal material that instils, not so dropped amount is crossed that I haven't seen you for ages and is made the display panels unit (cell) after the sealing have bubble, and dropped amount is crossed and can be made at most between this display panels unit that the crack is inhomogeneous and produce the gravity nurse and draw (gravity Mura) defective again.
Fortunately, the substrate itself that forms this display panels has elasticity a little, therefore when the liquid crystal injection rate IR is less than the predetermined volumes of unit a little, ambient pressure can make the substrate slight curvature of this display panels and make this liquid crystal material to fill up this unit fully and be unlikely to produce bubble.Yet the flexible degree of substrate depends on the density that the introns in the display panels distribute.Fig. 1 a is depicted as the display panels 100a that (low-density) dredged in the introns distribution, and Fig. 1 b is depicted as the display panels 100b of introns distributions closeer (high density).With reference to Fig. 2, because it is thinner that the introns of display panels 100a distribute, so the flexible degree of substrate is bigger, the liquid crystal amount of splashing into is less than a just can produce bubble, just have the gravity nurse greater than d and draw defective, that is to say that (process window) is between a and d between its operational zone.Relatively, because it is closeer that the introns of display panels 100b distribute, therefore the flexible degree of substrate is less, the liquid crystal amount of splashing into just can produce bubble less than b, just have the gravity nurse greater than c and draw defective, (process window) is between b and c, obviously than coming for a short time between the operational zone of display panels 100a between its operational zone.Hence one can see that, if use a display panels that is instilled into processing procedure to adopt low-density relatively introns design can obtain between bigger operational zone.
Yet, have the display panels of low-density relatively introns, ensuingly pressing, less because of the strong point in the processing procedure such as vacuum adsorption, its substrate is easier to distortion relatively when being subjected to external force, thereby produces that nurse draws defective even the chance of breaking also uprises.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, provide a kind of display panels its have several first thrusts in order between substrate, to keep a first module spacing, and several second thrusts roughly improve because the restriction of background technology and the problem that shortcoming caused by this in order to keep less second unit interval (cell gap) between this substrate when this display panels is subjected to an external force.
For reaching above-mentioned purpose, a kind of display panels provided by the invention comprises: one first substrate; One second substrate; One liquid crystal layer is located between this first substrate and this second substrate; Several first thrusts be fixed on this first substrate and with this second substrate contacts, wherein this first thrust is in order to keep a first module spacing between this first and second substrate; Several second thrusts be fixed on this first substrate and and this second substrate between have a gap, wherein when this display panels was subjected to an external force, this second thrust was in order to keep one second unit interval less than this first module spacing between this first and second substrate; And several the 3rd thrusts are located on this first substrate, in order to adjust the sense of rotation of this liquid crystal layer.
The preferable multiregional vertical align LCD that is applicable to of display panels of the present invention.Therefore, this display panels can comprise in addition that several the 3rd thrusts are located at this first substrate and second substrate one of them in order to adjust the sense of rotation of this liquid crystal layer.
Preferably, this first thrust and this second thrust are made of the same material, and the 3rd thrust is made by being different from the material of making this first, second thrust.This first, second thrust has the column external form.
Display panels of the present invention belongs to one of element of a kind of liquid crystal indicator, therefore when being subjected to an external force in the successive process of this display panels at this liquid crystal indicator, can contact this second substrate by this first and second thrust preferable anchorage force is provided, but the 3rd thrust can't contact the substrate (may be first substrate or second substrate) on its opposite this moment.
The present invention provides a kind of method of making aforesaid display panels in addition.At first, form several first thrusts and second thrust on one first substrate with one first material.Preferably, this first thrust and second thrust are for forming simultaneously.Form several the 3rd thrusts in two substrates of this display panels on one of them with one second material.In addition, form a seal in these two substrates at least on one of them.Then, form the brilliant material of at least one dropping liquid in these two substrates on one of them.Then, one of them of two substrates is stacked and placed on another substrate.Carry out the sclerosis processing procedure of sealing part at last, make this display panels by this, this first thrust in this display panels and this second substrate contacts, wherein this first thrust is in order to keep a first module spacing between this first and second substrate, and has a gap between this second thrust and this second substrate, wherein when this display panels is subjected to an external force, this second thrust is in order to keeping one second unit interval less than this first module spacing between this first and second substrate, and wherein the 3rd thrust in order to adjust the sense of rotation of this liquid crystal material.
Display panels provided by the present invention has the introns (aforesaid first thrust) of relatively low Density Distribution, therefore when being instilled into processing procedure and making this display panels with one, the substrate that forms this display panels can have bigger deformability, splashes into processing procedure at liquid crystal by this and obtains between bigger operational zone.Yet when being subjected to an external force in this display panels other processing procedure (for example pressing or vacuum adsorption) at this liquid crystal indicator, second thrust of this panel also can support the substrate of this display panels and make this display panels be unlikely to excessive deformation and produce nurse and draw defective or break.Therefore display panels provided by the invention has excellent mechanical intensity and splashes into processing procedure at liquid crystal has between bigger operational zone.
Description of drawings
Fig. 1 a is the phantom view of existing display panels, and wherein this display panels has the lower introns of distribution density;
Fig. 1 b is the phantom view of existing display panels, and wherein this display panels has the higher introns of distribution density;
Fig. 2 is for using one to be instilled into its liquid crystal drop fluence of display panels of processing procedure and the graph of a relation of cell gap;
Fig. 3 is the phantom view of display panels according to an embodiment of the invention;
Fig. 4 is the phantom view of display panels according to another embodiment of the present invention;
Fig. 5 is the part top view of the display panels of Fig. 4.
Symbol description among the figure
102 first substrates, 104 second substrates
108 introns
300 display panels, 302 first substrates
303 data circuits, 304 second substrates
305 brake cable roads, 306 liquid crystal layers
308 first thrusts, 310 second thrusts
312 photoresistance districts, 314 light cover array
316 comparative electrodes, 318 thin film transistor (TFT)s
g
1The first gap g
2Second gap
400 display panels 402 the 3rd thrust
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with drawings and Examples.
Figure 3 shows that display panels 300 according to an embodiment of the invention, it comprises one first substrate 302, one second substrate 304, a liquid crystal layer 306 and is located between first substrate 302 and second substrate 304, and several first thrusts 308 and second projection 310 are located on second substrate 304.This first substrate 302 is a colored optical filtering substrates, which is provided with several photoresistance districts 312, a light cover array 314 between adjacent photoresistance district 312 and a comparative electrode 316 roughly be covered in the whole surface of this first substrate 302.This second substrate 304 is a thin film transistor base plate, which is provided with several parallel data circuits 303 (referring to Fig. 5), several parallel brake cable road 305 (referring to Fig. 5), thin film transistor (TFT)s 318 and is located at the staggered place on each data circuit and brake cable road and pixel electrode and is located in each zone of being defined by staggered data circuit and brake cable road corresponding to the photoresistance district 312 on first substrate 302.In the embodiment shown in fig. 3, this several first thrust 308, second thrust 310 are located on second substrate 304; Yet this several first thrust 308, second thrust 310 also can be located on first substrate 302 (as shown in Figure 4).
In addition, the design of second thrust 310 allows to be subjected to an external force when win substrate 302 or second substrate 304 are out of shape a little when this display panels, this second thrust 310 can support this first substrate 302 and second substrate 304, make the unit interval (cell gap) of keeping another almost fixed between this first substrate 302 and second substrate 304, increase the strong point of this display panels 300 by this, improve the physical strength and the deformation resistance of this display panels 300.
Display panels of the present invention is also applicable to the multiregional vertical align LCD.With reference to Fig. 4 and Fig. 5, first thrust 308 of this display panels 400 and second thrust 310 are located on first substrate 302, and comprise the 3rd thrust 402 in addition in order to adjust the sense of rotation of the liquid crystal molecule in the liquid crystal layer 306, when imposing a voltage, make the configuration of this liquid crystal molecule be directed and comprise several directions.Because the orientation of liquid crystal molecule is several different directions mutually, so the field-of-view angle of this LCD 400 can significantly increase.With reference to Fig. 5, this several the 3rd thrust 402 parallel to each other being located on this first substrate 302.Each the 3rd thrust 402 has a main body that is bent into " it " font.With reference to Fig. 4,, keep a sizable spacing between the 3rd thrust 402 and second substrate 304 in order to adjust the orientation of the liquid crystal molecule in the liquid crystal layer 306.Therefore push when this display panels 400 is subjected to external force, keep sizable unit interval because this second thrust 310 makes between this first substrate 302 and second substrate 304, so the 3rd thrust 402 can not touch second substrate 304.
According to the present invention, this first thrust 308 and second thrust 310 are all in order to supporting this first substrate 302 and second substrate 304, so this first thrust 308 and second thrust, 310 preferable being made of the same material, and have the column external form.In addition, the 3rd thrust 402 is in order to adjust the orientation of the liquid crystal molecule in the liquid crystal layer 306, therefore a main body that is bent into " it " font is generally made, and had to the 3rd thrust 402 by the material that is different from the material that forms this first thrust 308 and second thrust 310.Preferably, this first thrust 308 and second thrust 310 provide the support of this display panels rigidity by this than the 3rd thrust 402 hard (that is the hardness of this first thrust 308 and second thrust 310 is higher than the 3rd thrust 402).
The present invention provides a kind of method of making aforesaid display panels in addition, is described as follows with reference to Fig. 4.At first, form several first thrusts 308 and second thrust 310 on first substrate 302 with one first material.For saving manufacturing process, this first thrust 308 and second thrust 310 are preferably simultaneously and form.Form several the 3rd thrusts 402 on first substrate 302 with one second material.
In addition, form a seal (not being shown among the figure) in first substrate 302 and second substrate 304 at least on one of them.Then, form the brilliant material of at least one dropping liquid in this first substrate 302 and second substrate 304 on one of them.
Then, one of them of first substrate 302 and second substrate 304 is stacked and placed on another substrate.Carry out the sclerosis processing procedure of sealing part at last, make this display panels 400 by this.
It should be noted that first thrust 308 provided by the present invention, second thrust 310 are preferably and are formed at this light and cover the zone that array 314 is covered, to avoid influencing the transmittance of this liquid crystal indicator.In addition, the present invention is characterized in to provide two to be mounted on first thrust 308 and second thrust 310 of a substrate, and make it and relatively the gap between the substrate is different.Aforementioned feature can be utilized the drop of the convex-concave surface on colorized optical filtering first substrate 302 or thin film transistor (TFT) second substrate 304, make and have different gaps between first thrust 308 of equal height and the relative substrate of second thrust 310 with it, certainly, also can utilize the thrust of differing heights to reach identical effect.The present invention mainly is by different gap between first thrust 308 and second thrust 310 and relative second substrate 304, and make this display panels 300 or 400 when not being subjected to external force, have low-density introns (first thrust 308), and has highdensity support member (the first thrust 308+, second thrust 310) when in other processing procedure (for example pressing or vacuum adsorption) of this liquid crystal indicator, being subjected to an external force.Therefore when being instilled into processing procedure and making this display panels with one, both just the liquid crystal injection rate IR was less than predetermined volumes between substrate a little, second thrust 310 also allows that ambient pressure makes the substrate slight curvature of this display panels and makes this liquid crystal material to fill up this unit fully and be unlikely to produce bubble, splashes into processing procedure at liquid crystal by this and obtains between bigger operational zone.Yet when being subjected to an external force in this display panels other processing procedure (for example pressing or vacuum adsorption) at this liquid crystal indicator, except first thrust 308, this second thrust 310 also can support the substrate of this display panels and make this display panels be unlikely to excessive deformation and produce nurse and draw defective or break.That is to be display panels of the present invention do the time spent being subjected to external force, has the support member that higher density distributes.Therefore display panels provided by the invention has excellent mechanical intensity and splashes into processing procedure at liquid crystal has between bigger operational zone.
Though the present invention discloses with aforementioned preferred embodiment; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; when can doing various changes and modification, so protection scope of the present invention is as the criterion as the scope person of defining that look claims.
Claims (27)
1. a display panels is characterized in that, comprises:
One first substrate;
One second substrate;
One liquid crystal layer is located between this first substrate and this second substrate;
Several first thrusts be fixed on this first substrate and with this second substrate contacts, wherein this first thrust is in order to keep a first module spacing between this first and second substrate;
Several second thrusts be fixed on this first substrate and and this second substrate between have a gap, wherein when this display panels was subjected to an external force, this second thrust was in order to keep one second unit interval less than this first module spacing between this first and second substrate; And
Several the 3rd thrusts are located on this first substrate, in order to adjust the sense of rotation of this liquid crystal layer.
2. display panels as claimed in claim 1, wherein, this second substrate has several first areas and contacts with this first thrust, and several second areas are in the face of this second thrust, and the height of the first area of this second substrate is greater than the height of second area.
3. display panels as claimed in claim 2, wherein, this first thrust is identical with the height of second thrust.
4. display panels as claimed in claim 1, wherein, this gap is between 0.2 μ m to 2.5 μ m.
5. display panels as claimed in claim 1, wherein, this first, second thrust has the column external form.
6. display panels as claimed in claim 1, wherein, this first substrate is a colored optical filtering substrates, and this second substrate is a thin film transistor base plate.
7. display panels as claimed in claim 1, wherein, this first thrust and this second thrust are all made by one first material.
8. display panels as claimed in claim 7, wherein, the 3rd thrust is made by one second material, and is different from this first material.
9. display panels as claimed in claim 8, wherein, the hardness of this first, second thrust is higher than the 3rd thrust.
10. display panels as claimed in claim 7, wherein, this second substrate has several first areas and contacts with this first thrust, and several second areas are in the face of this second thrust, and the height of the first area of this second substrate is greater than the height of second area.
11. display panels as claimed in claim 10, wherein, this first thrust is identical with the height of second thrust.
12. display panels as claimed in claim 7, wherein, this gap is between 0.2 μ m to 2.5 μ m.
13. display panels as claimed in claim 7, wherein, this first substrate is a colored optical filtering substrates, and this second substrate is a thin film transistor base plate.
14. display panels as claimed in claim 7, wherein, this first, second thrust has the column external form.
15. a display panels is characterized in that, comprises:
One first substrate;
One second substrate;
One liquid crystal layer is located between this first substrate and this second substrate;
Several first thrusts be fixed on this first substrate and with this second substrate contacts, wherein this first thrust is in order to keep a first module spacing between this first and second substrate;
Several second thrusts be fixed on this first substrate and and this second substrate between have a gap, wherein when this display panels was subjected to an external force, this second thrust was in order to keep one second unit interval less than this first module spacing between this first and second substrate; And
Several the 3rd thrusts are located at this first substrate, in order to adjusting the sense of rotation of this liquid crystal layer,
Wherein when this display panels was subjected to an external force and makes that this first and second thrust contacts this second substrate, the 3rd thrust did not contact this second substrate.
16. display panels as claimed in claim 15, wherein, this second substrate has several first areas and contacts with this first thrust, and several second areas are in the face of this second thrust, and the height of the first area of this second substrate is greater than the height of second area.
17. display panels as claimed in claim 16, wherein, this first thrust is identical with the height of second thrust.
18. display panels as claimed in claim 15, wherein, this gap is between 0.2 μ m to 2.5 μ m.
19. display panels as claimed in claim 15, wherein, this first, second thrust has the column external form.
20. display panels as claimed in claim 15, wherein, this first substrate is a colored optical filtering substrates, and this second substrate is a thin film transistor base plate.
21. the manufacture method of a display panels is characterized in that, comprises the following step:
Form several first thrusts on one first substrate with one first material;
Form several second thrusts on this first substrate with this first material;
Form several the 3rd thrusts on this first substrate or one second substrate with one second material;
Form a seal in this first substrate and this second substrate at least on one of them;
Form the brilliant material of at least one dropping liquid in this first substrate and this second substrate on one of them;
One of them is stacked and placed on this first substrate and this second substrate another substrate wherein with this first substrate and this second substrate; And
The sclerosis processing procedure of carrying out the sealing part obtains this display panels by this, this first thrust in this display panels and this second substrate contacts, wherein this first thrust is in order to keep a first module spacing between this first and second substrate, and has a gap between this second thrust and this second substrate, wherein when this display panels is subjected to an external force, this second thrust is in order to keeping one second unit interval less than this first module spacing between this first and second substrate, and wherein the 3rd thrust in order to adjust the sense of rotation of this liquid crystal material.
22. the manufacture method of display panels as claimed in claim 21, wherein, this first thrust and this second thrust form simultaneously.
23. the manufacture method of display panels as claimed in claim 21, wherein, this second substrate has several first areas and contacts with this first thrust, and several second areas are in the face of this second thrust, and the height of the first area of this second substrate is greater than the height of second area.
24. the manufacture method of display panels as claimed in claim 22, wherein, this first thrust is identical with the height of second thrust.
25. the manufacture method of display panels as claimed in claim 21, wherein, this gap is between 0.2 μ m to 2.5 μ m.
26. the manufacture method of display panels as claimed in claim 21, wherein, this first, second thrust has the column external form.
27. the manufacture method of display panels as claimed in claim 21, wherein, this first substrate is a colored optical filtering substrates, and this second substrate is a thin film transistor base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310100796XA CN100381900C (en) | 2003-10-09 | 2003-10-09 | Liquid crystal display panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310100796XA CN100381900C (en) | 2003-10-09 | 2003-10-09 | Liquid crystal display panel and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN1605907A CN1605907A (en) | 2005-04-13 |
| CN100381900C true CN100381900C (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200310100796XA Expired - Fee Related CN100381900C (en) | 2003-10-09 | 2003-10-09 | Liquid crystal display panel and manufacturing method thereof |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3892841B2 (en) | 2003-10-27 | 2007-03-14 | 株式会社 日立ディスプレイズ | Liquid crystal display |
| KR101232139B1 (en) | 2005-12-13 | 2013-02-12 | 엘지디스플레이 주식회사 | Liquid Crystal Display Device |
| CN100444010C (en) * | 2006-09-04 | 2008-12-17 | 友达光电股份有限公司 | Liquid crystal display faceplate |
| CN101320174B (en) * | 2007-06-08 | 2010-05-26 | 北京京东方光电科技有限公司 | Thin-film transistor LCD display panel |
| CN103018969B (en) * | 2012-12-12 | 2015-07-15 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display device |
| CN105676548B (en) * | 2016-04-18 | 2019-04-05 | 京东方科技集团股份有限公司 | A kind of display liquid crystal loading method for measuring and device |
| CN108363223A (en) * | 2018-01-19 | 2018-08-03 | 精电(河源)显示技术有限公司 | A kind of liquid crystal display production method for reducing bubble and generating |
| CN112181056B (en) * | 2020-09-29 | 2022-07-12 | 武汉华星光电技术有限公司 | Display device |
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|---|---|---|---|---|
| JPH07120764A (en) * | 1993-09-02 | 1995-05-12 | Matsushita Electric Ind Co Ltd | Liquid crystal display panel and its production |
| US6486936B1 (en) * | 1999-05-25 | 2002-11-26 | Nec Corporation | Liquid crystal panel with seal containing hard and soft spacers |
| US20030112404A1 (en) * | 2001-12-14 | 2003-06-19 | Lg.Philips Lcd Co., Ltd. | Liquid crystal display device and method of fabricating the same |
| US20030123016A1 (en) * | 2001-12-29 | 2003-07-03 | Lg.Philips Lcd Co. Ltd. | Liquid crystal display device and fabrication method thereof |
-
2003
- 2003-10-09 CN CNB200310100796XA patent/CN100381900C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07120764A (en) * | 1993-09-02 | 1995-05-12 | Matsushita Electric Ind Co Ltd | Liquid crystal display panel and its production |
| US6486936B1 (en) * | 1999-05-25 | 2002-11-26 | Nec Corporation | Liquid crystal panel with seal containing hard and soft spacers |
| US20030112404A1 (en) * | 2001-12-14 | 2003-06-19 | Lg.Philips Lcd Co., Ltd. | Liquid crystal display device and method of fabricating the same |
| US20030123016A1 (en) * | 2001-12-29 | 2003-07-03 | Lg.Philips Lcd Co. Ltd. | Liquid crystal display device and fabrication method thereof |
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| CN1605907A (en) | 2005-04-13 |
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Address after: Hsinchu Science Park, Taiwan, China Patentee after: INNOLUX DISPLAY CORP. Address before: No. 1, Xinshi Road, Xinshi, Tainan Science Industrial Park, Tainan County, Taiwan, China Patentee before: CHI MEI OPTOELECTRONICS CORP. |
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Granted publication date: 20080416 Termination date: 20211009 |