CN100368874C - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN100368874C CN100368874C CNB2006100005180A CN200610000518A CN100368874C CN 100368874 C CN100368874 C CN 100368874C CN B2006100005180 A CNB2006100005180 A CN B2006100005180A CN 200610000518 A CN200610000518 A CN 200610000518A CN 100368874 C CN100368874 C CN 100368874C
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- isolation structure
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Abstract
The present invention provides a liquid crystal display which comprises a first baseplate, a second baseplate and a liquid crystal layer, wherein the first baseplate is provided with an array which is composed of a plurality of pixel areas; the second baseplate is parallelly opposite to the first baseplate, and a distance exists between the first baseplate and the second baseplate; the liquid crystal layer is arranged between the first baseplate and the second baseplate; the array is divided into a plurality of secondary areas; each of the secondary areas is provided with a plurality of pixel areas. Through the present invention, the large size TFT-LCD liquid crystal display is divided into a plurality of secondary areas, and continuous wall-shaped isolation structures are formed around each of the secondary areas to avoid the flow caused by the downward pull of gravity in the liquid crystal layer, and further, the display defects of mura, etc. are avoided.
Description
Technical field
The invention relates to a kind of LCD device, particularly relevant for a kind of LCD device with isolation structure.
Background technology
LCD (LCD) has many advantages, and for example volume is little, in light weight, low power consumption or the like.Therefore, LCD has been applied to hand-held computer, mobile phone or the like electronic product widely.With regard to manufacture method, with drip (one drop filling, ODF) mode is made liquid crystal panel owing to can save time of liquid crystal filling, so drip (ODF) has become main LCD and has made trend.
Fig. 1 shows a kind of diagrammatic cross-section of known LCD display panel structure.One LCD device 100 comprises first substrate 10 and second substrate 50, and a liquid crystal layer 70 is folded in therebetween.In addition, LCD device 100 1 comprises a plurality of pixel region P, intersects the zone definitions that is constituted by gate line (not icon) with data line 26 and forms.Pixel region P comprises active member zone T, for example thin film transistor (TFT) TFT, an and pixel electrode 32.Thin film transistor (TFT) TFT comprises that grid 12 electrically connects gate lines (not icon), and semi-conductor layer 20 is provided with on the gate electrode 12, and one source pole electrode 22 is positioned on the semiconductor layer 20, be connected with data line 26 and with drain electrode 24 specific interval of being separated by.
Comprise one first insulation course 14 and second insulation course 28 on first substrate 10.Second substrate 50 comprises that black-matrix layer 52 is positioned at and subtend first substrate 10 opposed inside surfaces.The position at black-matrix layer 52 places is with respect to the regional T of active member, gate line (not icon) and data line 26.
Generally speaking, two substrates of liquid crystal panel must laterally be provided with each other abreast, and have the accuracy of height.The manufacture method of typical liquid crystal panel provides adhesion between the substrate 10,50 that sealing substance is in alignment with each other two precisions, forms a hole.Then, utilize vacuum to inject (vacuuminjection) method, in the hole, filling liquid crystal 70 after, sealed again.Yet this kind method has shortcoming of all kinds on timeliness, injects in large-sized liquid crystal especially, needs long time to go to finish the step of utilizing liquid crystal 70 injected holes.
For solving above-mentioned vacuum impregnation needs shortcoming for a long time, so change instillation formula (one dropfilling, method ODF) into.The instillation formula is after forming a circle frame glue on the substrate, with the mode of liquid crystal to instil, directly instils in the zone that this frame glue is surrounded, and the group of carrying out two plate bases again is upright.Yet, utilize ODF technology to inject liquid crystal, easily make liquid crystal excessive or uneven, cause ripples line (mura) phenomenon more serious.Moreover, when uprightly placing,, cause the liquid crystal layer skewness, and then cause ripples line display defects such as (mura) because of the drop-down effect of gravity in view of large scale TFT-LCD panel.Therefore, industry is badly in need of a kind of improvement and corresponding scheme, shows uneven phenomenon to improve this.
The U.S. early stage publication US discloses a kind of LCD device No. 2004/0263766, as shown in Figure 2.In Fig. 2, around each red (R), green (G), blue (B) pixel, center on, as gap (spacer), to avoid drop-down the flowing of being caused of liquid crystal layer internal cause gravity with diaphragm wall shape thrust 108.Diaphragm wall shape thrust 108 is arranged on the black-matrix layer 102.Yet, make wall shape thrust in each colour element zone, can cause the liquid crystal in each pixel region in the whole front panel district isolated mutually, and too much wall shape thrust can cause behind the involution liquid crystal born of the same parents' gap wayward, the demand when causing the usefulness of display to be difficult for reaching design.
Summary of the invention
The object of the present invention is to provide a kind of LCD device, separate into a plurality of sub-regions, and form isolation structure, to avoid drop-down the flowing of being caused of liquid crystal layer internal cause gravity in each peripheral region, sub-region.
According to above-mentioned purpose, the invention provides a kind of LCD device, comprising: one first substrate, have the formed viewing area of a plurality of pixel regions, this viewing area is separated into a plurality of sub-regions, and the zone has a plurality of pixel regions each time; One second substrate, parallel subtend be in first substrate, and form a spacing with first substrate; One liquid crystal layer is arranged between first substrate and second substrate; And an isolation structure, around described a plurality of sub-regions; Wherein, comprise a plurality of gaps between first substrate and second substrate, and the height of gap is greater than the height of isolation structure.
Feature of the present invention and effect are, large scale TFT-LCD LCD device is separated into a plurality of sub-regions, and form continuous wall shape isolation structure in each peripheral region, sub-region, avoiding drop-down the flowing of being caused of liquid crystal layer internal cause gravity, and then avoid ripples line display defects such as (mura).
Below cooperate graphic and preferred embodiment, to illustrate in greater detail the present invention.
Description of drawings
Fig. 1 shows a kind of diagrammatic cross-section of known LCD display panel structure.
Fig. 2 shows the synoptic diagram that known panel of LCD centers on diaphragm wall shape thrust around each red (R), green (G), blue (B) pixel.
Fig. 3 shows the synoptic diagram of the LCD device of the embodiment of the invention.
The detailed maps of the sub-region in the substrate with chromatic filter layer of Fig. 4 displayed map 3.
In Fig. 5 displayed map 4 along the diagrammatic cross-section of X-X ' line of cut.
The primary clustering symbol description:
Known portions (Fig. 1～Fig. 2):
100～LCD device; 10～the first substrates;
12～grid; 14～the first insulation courses;
20～semiconductor layer; 22～source electrode;
24～drain electrode; 26～data line;
28～the second insulation courses; 32～pixel electrode;
50～the second substrates; 52～black-matrix layer;
54～chromatic filter layer; 54～red (R);
54b～green (G); 54c～indigo plant (B);
56～protective seam; 58～common electrode;
60～gap; 70～liquid crystal layer;
P～pixel region; T～active member zone;
108～diaphragm wall shape thrust; 102～black-matrix layer.
This case part (Fig. 3～Fig. 5):
300～large-sized panel of LCD device;
301～transparency carrier;
310～have a substrate (color filter substrate) of chromatic filter layer;
320～sub-region; 330～chromatic filter layer;
330a～red (R); 330b～green (G);
330c～indigo plant (B); 340～black-matrix layer;
350～gap; 355～isolation structure;
W
AThe width of～isolation structure; W
BThe width of～black-matrix layer;
The height of h～isolation structure; The height of H～gap;
311a～viewing area; 311b～non-display area.
Embodiment
Then, be example with large scale TFT-LCD panel, the present invention is described.The liquid crystal indicator of the embodiment of the invention has a viewing area and a non-display area, wherein this viewing area can separate into a plurality of sub-regions, and form continuous wall shape isolation structure in each peripheral region, sub-region, to avoid drop-down the flowing of being caused of liquid crystal layer internal cause gravity, cause the gap inequality between the two sheet glass substrates.
Fig. 3 shows the synoptic diagram of the LCD device of the embodiment of the invention.In Fig. 3, large-sized panel of LCD device 300 has the substrate (color filter substrate) 310 of chromatic filter layer, according to non-display area 311b and viewing area 311a, the viewing area is separated into a plurality of sub-regions 320, for example A～F zone.The size dimension scope of each sub-region and comprises a plurality of colour elements zone P on the whole between 5-15 inch (inch).The shape of each sub-region can be square or rectangle.Perhaps decide on the configuration of colour element and chromatic filter layer.The configuration of colour element comprises glazing bar shape, mosaic shape (mosaic) or honey comb structure.
The described substrate (color filter substrate) 310 with color filter film of the embodiment of the invention is not limited to the substrate of subtend in active device substrate or TFT substrate.In another embodiment of the present invention, the substrate of chromatic colour filter layer on the multiple substrate (color filter on array is called for short COA) also should can be used in the embodiment of the invention.
The synoptic diagram of the sub-region 320 in the substrate with chromatic filter layer 310 of Fig. 4 displayed map 3.See also Fig. 4, the substrate 310 that will have chromatic filter layer is divided into a plurality of sub-regions 320, for example A～F zone.One of them sub-region 320, for example regional A comprises a transparency carrier 301, for example, glass substrate or plastic base.One black-matrix layer 340 is formed at transparency carrier 301.Black-matrix layer 340 is lighttight zone, and the position at its place is along the edge or the intersection setting of each colour element, and with respect to active member zone, gate line (Gate Line) and data line (Data Line).
Then, chromatic filter layer 330 comprises red (R) 330a, green (G) 330b, indigo plant (B) 330c, the pixel region P between the wall shape separation layer 355 of being located at sub-region 320 centers on.It should be noted that wall shape separation layer 355 also can be positioned on other different layers, for example: gate line, data line except being positioned on the black-matrix layer.Then, protective seam and transparent common electrode are formed on the substrate with chromatic filter layer in regular turn.
Then, form gap (spacer) 350 and be arranged on the black-matrix layer 320, in order to the even size of space between the real estate of keeping two opposition.This gap 350 comprises column clearance wall structure, can utilize lithography, photoresist is formed the clearance wall structure of column.
Liquid crystal is subjected to gravity traction and flows in large-sized panel of LCD device, the embodiment of the invention be provided with a continuous wall shape isolation structure 355 in the sub-region 320 neighboring area.Isolation structure 355 can form in same lithography step with gap 350.Or isolation structure 355 can form in different lithography steps with gap 350.Isolation structure 355 is along black-matrix layer 340 its width W to be set
ABe slightly less than the width W of black-matrix layer 340
B, and its height h is lower than the height H of these gap 350, between the 1/3-4/5 of the height of preferable is these gap 350.
It should be noted that the true altitude of isolation structure 355 is relevant with the viscosity of liquid crystal molecule in the liquid crystal layer.If the coefficient of viscosity height of liquid crystal molecule, lower isolation structure 355 gets final product; Otherwise, then need higher isolation structure 355.Among Fig. 4 along the diagrammatic cross-section of X-X ' line of cut as shown in Figure 5.
According to another embodiment of the present invention, chromatic filter layer also can be formed on the substrate of active member array.One black-matrix layer 340 is formed on the active member multiple substrate.Black-matrix layer 340 is lighttight zone, and the position at its place is with respect to active member zone, gate line and data line.Chromatic filter layer comprises red (R), green (G), blue (B), is located at the pixel region P of black-matrix layer between centering on.Chromatic filter layer and black-matrix layer can be positioned at different layers.Then, protective seam and transparent pixel electrode are formed on the active member multiple substrate in regular turn.
In view of the foregoing description, the invention provides a kind of large-sized panel of LCD device, comprise one first substrate and one second substrate, the second substrate subtend is in first substrate, its spacing is every with a plurality of gaps, in order to the even size of space between the real estate of keeping two opposition.A plurality of chromatic filter layers are positioned on first substrate, and each chromatic filter layer region is defined as a colour element.And a liquid crystal layer, formed by ODF technology, be arranged at the liquid crystal layer between first substrate and second substrate.This LCD device has a viewing area 311a and a non-display area 311b, wherein viewing area 311a is separated into a plurality of sub-regions, and around described a plurality of sub-regions, wherein the height of these gap is greater than the height of isolation structure with continuous wall shape isolation structure.
Feature of the present invention and effect are, large scale TFT-LCD LCD device is separated into a plurality of sub-regions, and form continuous wall shape isolation structure in each peripheral region, sub-region, avoiding drop-down the flowing of being caused of liquid crystal layer internal cause gravity, and then avoid ripples line display defects such as (mura).
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any people who has the knack of this skill, without departing from the spirit and scope of the present invention; when can doing to change and retouching, so protection scope of the present invention is when looking being as the criterion that claim defines.
Claims (10)
1. LCD device is characterized in that comprising:
One first substrate has the formed viewing area of a plurality of pixel regions, and this viewing area is separated into a plurality of sub-regions, and the zone has a plurality of pixel regions each time;
One second substrate, parallel subtend be in first substrate, and form a spacing with first substrate;
One liquid crystal layer is arranged between first substrate and second substrate; And
One isolation structure is around described a plurality of sub-regions;
Wherein, comprise a plurality of gaps between described first substrate and second substrate, and the height of gap is greater than the height of isolation structure.
2. LCD device as claimed in claim 1 is characterized in that, comprises that more a plurality of chromatic filter layers are positioned on first substrate.
3. LCD device as claimed in claim 2 is characterized in that, comprises that more a black-matrix layer is arranged at a neighboring area of each colorized optical filtering interlayer.
4. LCD device as claimed in claim 1 is characterized in that, comprises that more an active member array is positioned on first substrate.
5. LCD device as claimed in claim 4 is characterized in that, described active member array is made of many gate lines and many data lines.
6. LCD device as claimed in claim 1 is characterized in that, the height of described isolation structure is between the 1/3-4/5 of height of described a plurality of gaps.
7. LCD device as claimed in claim 1 is characterized in that, described isolation structure is positioned on the black-matrix layer of each colorized optical filtering interlayer.
8. LCD device as claimed in claim 1 is characterized in that, described isolation structure is positioned on the gate line and data line of described active member array.
9. LCD device as claimed in claim 1 is characterized in that the dimension of described sub-region is between the 5-15 inch.
10. LCD device as claimed in claim 1 is characterized in that described liquid crystal layer is formed by drip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100005180A CN100368874C (en) | 2006-01-09 | 2006-01-09 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100005180A CN100368874C (en) | 2006-01-09 | 2006-01-09 | Liquid crystal display device |
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| Publication Number | Publication Date |
|---|---|
| CN1794046A CN1794046A (en) | 2006-06-28 |
| CN100368874C true CN100368874C (en) | 2008-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100005180A Active CN100368874C (en) | 2006-01-09 | 2006-01-09 | Liquid crystal display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10012871B2 (en) | 2016-10-31 | 2018-07-03 | Xiamen Tianma Micro-Electronics Co., Ltd. | Liquid crystal display panel and liquid crystal display apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873209B (en) * | 2015-09-30 | 2021-05-11 | 乐金显示有限公司 | Light control device, transparent display device including the same, and method of manufacturing the same |
| KR102405312B1 (en) * | 2015-10-06 | 2022-06-02 | 엘지디스플레이 주식회사 | Light controlling device, transparent display device including the same, and method for fabricating the same |
| CN109976048A (en) * | 2019-04-30 | 2019-07-05 | 深圳市华星光电技术有限公司 | Reflecting type liquid crystal display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771084A (en) * | 1996-03-05 | 1998-06-23 | Sharp Kabushiki Kaisha | Liquid crystal display device and method for fabricating the same |
| JP2001083530A (en) * | 1999-04-28 | 2001-03-30 | Sharp Corp | Liquid crystal display device and its production |
| CN1672088A (en) * | 2002-08-02 | 2005-09-21 | 三星电子株式会社 | Panel for liquid cristal display, liquid crystal display including the panel, and methods for manufacturing the same |
-
2006
- 2006-01-09 CN CNB2006100005180A patent/CN100368874C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771084A (en) * | 1996-03-05 | 1998-06-23 | Sharp Kabushiki Kaisha | Liquid crystal display device and method for fabricating the same |
| JP2001083530A (en) * | 1999-04-28 | 2001-03-30 | Sharp Corp | Liquid crystal display device and its production |
| CN1672088A (en) * | 2002-08-02 | 2005-09-21 | 三星电子株式会社 | Panel for liquid cristal display, liquid crystal display including the panel, and methods for manufacturing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10012871B2 (en) | 2016-10-31 | 2018-07-03 | Xiamen Tianma Micro-Electronics Co., Ltd. | Liquid crystal display panel and liquid crystal display apparatus |
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| Publication number | Publication date |
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| CN1794046A (en) | 2006-06-28 |
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