CN101539678A - Liquid crystal display panel and manufacturing method thereof - Google Patents

Liquid crystal display panel and manufacturing method thereof Download PDF

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Publication number
CN101539678A
CN101539678A CN200810086868A CN200810086868A CN101539678A CN 101539678 A CN101539678 A CN 101539678A CN 200810086868 A CN200810086868 A CN 200810086868A CN 200810086868 A CN200810086868 A CN 200810086868A CN 101539678 A CN101539678 A CN 101539678A
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China
Prior art keywords
substrate
display panels
disposed
making
mixed solution
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CN200810086868A
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Chinese (zh)
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CN101539678B (en
Inventor
李得俊
曾迎祥
麦真富
蔡乙诚
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Chunghwa Picture Tubes Ltd
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Chunghwa Picture Tubes Ltd
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Abstract

The invention discloses a method for manufacturing a liquid crystal display panel, which comprises the following steps of: firstly, providing a first substrate and a second substrate; secondly, forming a mixed solution between the first substrate and the second substrate, wherein the mixed solution consists of a plurality of liquid crystal molecules and a plurality of macromolecular monomers; thirdly, forming an electrical field between the first substrate and the second substrate; fourthly, performing a first light irradiation procedure of a partial mixed solution to make part of macromolecular monomers polymerized; and finally, performing a second light irradiation of the mixed solution to make macromolecular monomers polymerized.

Description

Display panels and preparation method thereof
Technical field
The invention relates to a kind of display panels and manufacture method thereof, and particularly can reduce display panels and the manufacture method thereof that dark line produced and promoted display quality relevant for a kind of.
Background technology
Social now multimedia technology is quite flourishing, is indebted to the progress of semiconductor element and display device mostly.With regard to display, have that high image quality, space utilization efficient are good, the display panels of low consumpting power, advantageous characteristic such as radiationless becomes the main flow in market gradually.Generally speaking, display panels is made of an active elements array substrates, a colored optical filtering substrates and the liquid crystal layer between two substrates.
In order to improve the quality bills of materials of display panels, when between active elements array substrates and colored optical filtering substrates, forming liquid crystal layer, can adopt PSA (Polymer Sustain Alignment) technology, shown in Figure 1A~1C: at first, form a liquid crystal layer 13 between active elements array substrates 11 and colored optical filtering substrates 12, wherein liquid crystal layer 13 is to be mixed by liquid crystal molecule 14 and high polymer monomer (monomer) 15.Then please refer to Figure 1B, between active elements array substrates 11 and colored optical filtering substrates 12, apply a voltage V, to form electric field.Liquid crystal molecule 14 can be subjected to electric field influence, thereby presents tilt state.Then, the high polymer monomer in the liquid crystal layer 13 15 is shone, so that high polymer monomer 15 polymerizations and the pre-dumping state of liquid crystal molecule 14 is positioned by ultraviolet light U.
Then please refer to Fig. 1 C, after high polymer monomer 15 is subjected to ultraviolet light U irradiation polymerization, can be in forming polymer film 16 on the pixel electrode E and in forming polymer film 17 on the colored optical filtering substrates 12.Generally speaking, be multi-direction arrangement, can on pixel electrode E, be formed with a plurality of slit S ' (slit), so that liquid crystal molecule 14 can have different orientations, so that display panels is reached the requirement of wide viewing angle in order to make liquid crystal molecule 14.It should be noted that the phenomenon that has arrangement disorder corresponding to the liquid crystal molecule 14 between the two different toppling directions (the A place shown in Fig. 1 C).This is easy to cause display frame to have dark line to produce, and causes the display quality of display panels 10 to descend, and improved necessity is arranged in fact.
Summary of the invention
The invention provides a kind of method for making of display panels, it can make liquid crystal molecule that good ordered state can be arranged, and produces dark line effectively to avoid display frame.
The invention provides a kind of display panels, it has good display quality.
The method for making that the present invention proposes a kind of display panels comprises the following steps: at first, and one first substrate and one second substrate are provided.Then, form a mixed solution between first substrate and second substrate, wherein mixed solution is made of a plurality of liquid crystal molecules and a plurality of high polymer monomer.Then, between first substrate and second substrate, form an electric field, and see through first substrate and the mixed solution of part is carried out the first rayed step, so that the high polymer monomer polymerization of part.Afterwards, through second substrate mixed solution is carried out one second rayed step, so that do not carry out the high polymer monomer polymerization of the first rayed step.
In one embodiment of this invention, the first above-mentioned substrate comprises that one has the active elements array substrates of chromatic filter layer.
In one embodiment of this invention, the method for making of above-mentioned display panels also comprises a shade is disposed on first substrate, and the first rayed step is carried out local irradiation by covering of shade to mixed solution.
In one embodiment of this invention, the material of above-mentioned shade comprises metal.
In one embodiment of this invention, the second above-mentioned substrate comprises a transparent substrates and uses electrode altogether.Wherein, common electrode is disposed on the transparent substrates.
In one embodiment of this invention, the first above-mentioned substrate comprises active elements array substrates.
In one embodiment of this invention, the second above-mentioned substrate comprises colored optical filtering substrates.
In one embodiment of this invention, the first above-mentioned rayed step comprises with the UV-irradiation high polymer monomer.
In one embodiment of this invention, the second above-mentioned rayed step comprises with the UV-irradiation high polymer monomer.
The present invention proposes a kind of display panels, comprises an active elements array substrates, a subtend substrate and a liquid crystal layer.Wherein, active elements array substrates comprises a substrate and a plurality of pixel cell that is disposed on the substrate.Each pixel cell comprises an active component, a colored filter pattern layers, a shade, a pixel electrode and one first polymer film at least.Active component is disposed on the substrate, and colored filter pattern layers covers active component and substrate partly.In addition, shade is disposed between colored filter pattern layers and the substrate.In addition, pixel electrode covers colored filter pattern layers, and electrically connects with active component.The first above-mentioned polymer film is disposed on the pixel electrode.The subtend substrate comprises a transparent substrates, has altogether with electrode and one second polymer film.Wherein, common electrode is disposed on the transparent substrates, and second polymer film is disposed on the common electrode.Above-mentioned liquid crystal layer is disposed between active elements array substrates and the subtend substrate.
In one embodiment of this invention, above-mentioned pixel electrode has a plurality of slits.
In one embodiment of this invention, the material of above-mentioned shade comprises metal.
The method for making of display panels of the present invention can be come the high polymer monomer of part is carried out the first rayed step and see through first substrate earlier by shade, so that the pre-dumping state of the liquid crystal molecule of part is positioned.Then, see through second substrate again and come mixed solution is carried out the second rayed step, can keep vertical with first substrate, to avoid display panels to have dark line to produce and can improve penetrance so that be positioned at the liquid crystal molecule of two different toppling direction intersections.Therefore, display panels of the present invention can have good display quality.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Figure 1A~1C is the manufacturing process diagrammatic cross-section of available liquid crystal display panel.
Fig. 2 A~2E is the section schematic flow sheet of method for making of the display panels of first embodiment of the invention.
Fig. 3 A is the display panels partial cutaway schematic of second embodiment of the invention.
Fig. 3 B is the display panels partial cutaway schematic of second embodiment of the invention.
The main element symbol description:
10,100,100 ', 100 ": display panels
11,110 ': active elements array substrates
12: colored optical filtering substrates
13,130,130 ': liquid crystal layer
14,132: liquid crystal molecule
15,134: high polymer monomer
16: following polymer film
17: go up polymer film
110: the first substrates
112: substrate
113: pixel cell
114: active component
116: chromatic filter layer
118: pixel electrode
119,125: thin polymer film
120: the second substrates
120 ': the subtend substrate
122: transparent substrates
124: common electrode
C1: channel layer
C2: ohmic contact layer
D: drain electrode
E: pixel electrode
G: grid
GI: gate insulation layer
M: shade
S: source electrode
P1: first polymer film
P2: second polymer film
PA: protective seam
S ': slit
U: ultraviolet light
Embodiment
First embodiment
Fig. 2 A~2E is the section schematic flow sheet of method for making of the display panels of first embodiment of the invention.Please refer to Fig. 2 A, the method for making of display panels of the present invention comprises the following steps: at first, and one first substrate 110 and one second substrate 120 are provided.In one embodiment, first substrate 110 can be active elements array substrates (the Color filter on array with chromatic filter layer, COA), second substrate 120 comprises that then a transparent substrates 122 and is disposed at the common electrode 124 on the transparent substrates 122.Certainly, have in the affiliated technical field and know that usually the knowledgeable should know that first substrate 110 of the present invention not necessarily adopts the substrate of COA technology, and optionally adopt general active elements array substrates.At this moment, 120 of second substrates are colored optical filtering substrates.
In detail, first substrate 110 is made of a substrate 112, an active component (will be specified among second embodiment), a chromatic filter layer 116 and a pixel electrode 118.Wherein, chromatic filter layer 116 can be disposed on the substrate 112, and pixel electrode 118 can be disposed on the chromatic filter layer 116.By Fig. 2 A as can be known, can have a plurality of slit S ' on the pixel electrode 118.It should be noted that on the present invention's first substrate 110 and can be formed with a shade M.This shade M is configurable between substrate 112 and chromatic filter layer 116.Particularly, the material of shade M can comprise metal, and for example is to form in the lump with sweep trace (scanline) or data line (data line), need not increase extra processing procedure.Then, form a mixed solution 130 between first substrate 110 and second substrate 120, wherein mixed solution 130 is made of with a plurality of high polymer monomers 134 (monomer) a plurality of liquid crystal molecules 132.
Then please refer to Fig. 2 B, between first substrate 110 and second substrate 120, apply a voltage V forming an electric field, and see through first substrate 110 and the mixed solution 130 of part is carried out the first rayed step, so that high polymer monomer 134 polymerizations of part.The above-mentioned first rayed step comprises with ultraviolet light U irradiation high polymer monomer 134.Here be noted that be positioned at two slit S ' but between the ultraviolet light U of shade M shaded portions, thereby can make corresponding to the high polymer monomer 134 between the two slit S ' and not be subjected to ultraviolet light U irradiation.Certainly, have in the affiliated technical field and know the visual actual conditions of the knowledgeable usually and utilize alternate manner to come ultraviolet shielding.Above-mentioned shade M with first substrate 110 comes shading, only in order to not painstakingly restriction of explanation.
Please refer to Fig. 2 C then, the high polymer monomer 132 of part is subjected to ultraviolet light U irradiation back and polymerization, and forms a thin polymer film 119,125 respectively on pixel electrode 118 and common electrode 124.At this moment, the pre-dumping state of part liquid crystal molecule 132 can be located, and topples over towards different directions.Here be stressed that be not subjected to ultraviolet light U irradiation corresponding to the high polymer monomer 132 above the shade M, therefore the pixel electrode 118 corresponding to shade M top does not form thin polymer film 119 as yet with common electrode 124.
Please refer to Fig. 2 D afterwards, through second substrate 120 mixed solution 130 is carried out one second rayed step, so that do not carry out high polymer monomer 134 (shown in the B) polymerization of the first rayed step.The above-mentioned second rayed step and the first rayed step are similar, all are to adopt ultraviolet light U to shine high polymer monomer 134.Thus, be positioned at high polymer monomer 134 polymerizations at B place after, can be in forming one first polymer film P1 (shown in Fig. 2 E) on the pixel electrode 118 and on common electrode 124, forming one second polymer film P2.
It should be noted that the pre-dumping state that is positioned at two different toppling direction intersection (shown in B) liquid crystal molecules 132 can be located, and liquid crystal molecule 132 can and have good ordered state perpendicular to first substrate 110.Therefore, display panels 100 of the present invention can effectively be avoided display frame to produce dark line and improve penetrance, and then can promote the display quality of display frame.
Second embodiment
Second embodiment is the formed display panels of manufacture method with active elements array substrates COA of chromatic filter layer.Fig. 3 A is the display panels partial cutaway schematic of second embodiment of the invention.Please refer to Fig. 3 A, display panels 100 ' of the present invention comprises an active elements array substrates 110 ', a subtend substrate 120 ' and a liquid crystal layer 130 '.Wherein, liquid crystal layer 130 ' is disposed between active elements array substrates 110 ' and the subtend substrate 120 '.Particularly, active elements array substrates 110 ' is made of a substrate 112 and the pixel cell 113 that is disposed on the substrate 112.
In addition, pixel cell 113 comprises an active component 114, a colored filter pattern layers 116, a shade M, a pixel electrode 118 and one first polymer film P1 at least.Wherein, active component 114 is disposed on the substrate 112, and colored filter pattern layers 116 covers active component 114.Here be noted that the active component 114 shown in Fig. 3 A is the structure of bottom-gate (bottom gate), active component 114 also can be selected the structure of top grid (top gate) for use certainly, in this not painstakingly restriction.Particularly, active component 114 comprises a grid G, a gate insulation layer GI, one source pole S, a drain D, a channel layer C1 and an ohmic contact layer C2.Wherein, grid G is disposed on the substrate 112, and gate insulation layer GI cover gate G and substrate 112 partly.In addition, channel layer C1 is disposed on the gate insulation layer GI of grid G top, and ohmic contact layer C2 is disposed between source S and the channel layer C 1 and between drain D and the channel layer C1.This active component 114 can be subjected to the covering of a protective seam PA, and colored filter pattern layers 116 is formed on the protective seam PA.
It should be noted that shade M is disposed between colored filter pattern layers 116 and the substrate 112.The material of this shade M comprises metal, and it for example can form in the lump with grid G.In one embodiment, shade M can select to form in the lump with source S/drain D.Shown in Fig. 3 B, shade M can be between gate insulation layer GI and protective seam PA.Certainly, have in the affiliated technical field and know the visual actual state of the knowledgeable usually, and select shade M and source S/drain D are formed in the lump, in this not painstakingly restriction.
In addition, pixel electrode 118 is disposed on the colored filter pattern layers 116, and electrically connects with active component 114.By Fig. 3 A as can be known, this pixel electrode 118 has a plurality of slit S '.In addition, the first polymer film P1 of the present invention is disposed on the pixel electrode 118.On the other hand, subtend substrate 120 ' of the present invention comprises a transparent substrates 122, has altogether with electrode 124 and one second polymer film P2.Wherein, common electrode 124 is disposed on the transparent substrates 122, and the second polymer film P2 is disposed on the common electrode 124.
In sum, the method for making of display panels of the present invention can be come high polymer monomer local in the mixed solution is carried out the first rayed step and see through first substrate earlier by shade, so that the pre-dumping state of the liquid crystal molecule of part is positioned.Then, see through second substrate again and come mixed solution is carried out the second rayed step, can keep vertical with first substrate, to avoid display panels to have dark line to produce and to improve penetrance so that be positioned at the liquid crystal molecule of two different toppling direction intersections.Therefore, display panels of the present invention can have good display quality.In addition, shade of the present invention can form in the lump with grid or source/drain, therefore need not additionally increase processing procedure.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.

Claims (12)

1. the method for making of a display panels comprises:
One first substrate and one second substrate are provided;
Form a mixed solution between this first substrate and this second substrate, wherein this mixed solution is made of a plurality of liquid crystal molecules and a plurality of high polymer monomer;
Between this first substrate and this second substrate, form an electric field, and see through this first substrate and this mixed solution of part is carried out the first rayed step, so that the high polymer monomer polymerization of part; And
See through this second substrate and this mixed solution is carried out one second rayed step, so that do not carry out the high polymer monomer polymerization of the first rayed step.
2. the method for making of display panels as claimed in claim 1 is characterized in that, this first substrate comprises that one has the active elements array substrates of chromatic filter layer.
3. the method for making of display panels as claimed in claim 2 is characterized in that, also comprise a shade is disposed on this first substrate, and this first rayed step is carried out local irradiation by covering of this shade to this mixed solution.
4. the method for making of display panels as claimed in claim 3 is characterized in that, the material of this shade comprises metal.
5. the method for making of display panels as claimed in claim 1 is characterized in that, this second substrate comprises:
One transparent substrates; And
Use electrode altogether, be disposed on this transparent substrates.
6. the method for making of display panels as claimed in claim 1 is characterized in that, this first substrate comprises active elements array substrates.
7. the method for making of display panels as claimed in claim 6 is characterized in that, this second substrate comprises colored optical filtering substrates.
8. the method for making of display panels as claimed in claim 1 is characterized in that, this first rayed step comprises with the UV-irradiation high polymer monomer.
9. the method for making of display panels as claimed in claim 1 is characterized in that, this second rayed step comprises with the UV-irradiation high polymer monomer.
10. display panels comprises:
One active elements array substrates comprises:
One substrate;
A plurality of pixel cells are disposed on this substrate, and respectively this pixel cell comprises at least:
One active component is disposed on this substrate;
One colored filter pattern layers covers this active component and substrate partly;
One shade is disposed between this colored filter pattern layers and this substrate;
One pixel electrode covers this colored filter pattern layers, and electrically connects with this active component; And
One first polymer film is disposed on this pixel electrode;
One subtend substrate comprises:
One transparent substrates; And
Use electrode altogether, be disposed on this transparent substrates;
One second polymer film is disposed on this common electrode;
One liquid crystal layer is disposed between this active elements array substrates and this subtend substrate.
11. display panels as claimed in claim 10 is characterized in that, this pixel electrode has a plurality of slits.
12. display panels as claimed in claim 10 is characterized in that, the material of this shade comprises metal.
CN2008100868682A 2008-03-17 2008-03-17 Liquid crystal display panel and manufacturing method thereof Expired - Fee Related CN101539678B (en)

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CN101539678A true CN101539678A (en) 2009-09-23
CN101539678B CN101539678B (en) 2011-03-16

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102608796A (en) * 2012-04-01 2012-07-25 福建华映显示科技有限公司 Transparent liquid crystal display device and manufacturing method thereof
WO2017031834A1 (en) * 2015-08-26 2017-03-02 深圳市华星光电技术有限公司 Color film substrate and curved-surface display device
CN107290895A (en) * 2017-08-15 2017-10-24 深圳市华星光电技术有限公司 Wire grating, flexible liquid crystal panel and preparation method thereof
WO2019019261A1 (en) * 2017-07-25 2019-01-31 惠科股份有限公司 Display panel and manufacturing method thereof, and display device using same
WO2019056456A1 (en) * 2017-09-19 2019-03-28 惠科股份有限公司 Liquid crystal display device and manufacturing method therefor
CN109856848A (en) * 2019-03-26 2019-06-07 深圳市华星光电技术有限公司 Liquid crystal display panel and pre-tilt angle forming method

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US5668651A (en) * 1994-03-18 1997-09-16 Sharp Kabushiki Kaisha Polymer-wall LCD having liquid crystal molecules having a plane-symmetrical bend orientation
JP4056326B2 (en) * 2002-08-30 2008-03-05 シャープ株式会社 Liquid crystal display
CN100350310C (en) * 2003-04-18 2007-11-21 统宝光电股份有限公司 Coloured liquid crystal display device
CN100357816C (en) * 2004-04-19 2007-12-26 统宝光电股份有限公司 Liquid crystal display unit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102608796A (en) * 2012-04-01 2012-07-25 福建华映显示科技有限公司 Transparent liquid crystal display device and manufacturing method thereof
CN102608796B (en) * 2012-04-01 2015-05-13 福建华映显示科技有限公司 Transparent liquid crystal display device and manufacturing method thereof
WO2017031834A1 (en) * 2015-08-26 2017-03-02 深圳市华星光电技术有限公司 Color film substrate and curved-surface display device
GB2556603A (en) * 2015-08-26 2018-05-30 Shenzhen China Star Optoelect Color film substrate and curved-surface display device
GB2556603B (en) * 2015-08-26 2021-04-14 Shenzhen China Star Optoelect Color filter substrate and curved surface display device
WO2019019261A1 (en) * 2017-07-25 2019-01-31 惠科股份有限公司 Display panel and manufacturing method thereof, and display device using same
CN107290895A (en) * 2017-08-15 2017-10-24 深圳市华星光电技术有限公司 Wire grating, flexible liquid crystal panel and preparation method thereof
WO2019056456A1 (en) * 2017-09-19 2019-03-28 惠科股份有限公司 Liquid crystal display device and manufacturing method therefor
CN109856848A (en) * 2019-03-26 2019-06-07 深圳市华星光电技术有限公司 Liquid crystal display panel and pre-tilt angle forming method
CN109856848B (en) * 2019-03-26 2021-03-23 Tcl华星光电技术有限公司 Liquid crystal display panel and pretilt angle forming method

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