CN107966847B - Display panel and method for manufacturing the same - Google Patents

Display panel and method for manufacturing the same Download PDF

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Publication number
CN107966847B
CN107966847B CN201711369721.XA CN201711369721A CN107966847B CN 107966847 B CN107966847 B CN 107966847B CN 201711369721 A CN201711369721 A CN 201711369721A CN 107966847 B CN107966847 B CN 107966847B
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layer
liquid crystal
display panel
color filter
substrate
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CN107966847A (en
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陈致豪
黄良莹
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AU Optronics Corp
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel

Abstract

The invention provides a manufacturing method of a display panel, which comprises the following steps: providing a color filter substrate comprising a first substrate, a light auxiliary layer and a plurality of color filter layers; providing an opposite substrate; providing a liquid crystal layer which comprises a plurality of liquid crystal molecules and a plurality of liquid crystal active monomers and is positioned between the color filter substrate and the opposite substrate; a light source is provided from the side of the color filter substrate, and light emitted from the light source is transmitted through the light auxiliary layer to the liquid crystal layer, so that the liquid crystal active monomer is converted into a polymer wall structure. The invention also provides a display panel.

Description

Display panel and method for manufacturing the same
Technical Field
The present invention relates to a method for manufacturing a display panel, and more particularly, to a display panel and a method for manufacturing the same, which relate to a polymer wall process.
Background
In the field of display panel technology, there are some practical problems to be solved. For example, there are problems in enhancing the reliability of pressing of the touch panel, reducing the movement of spacers in liquid crystal cells (cells), and maintaining the cell gap in the flexible panel. Therefore, the technology of supporting liquid crystal cells with polymer walls (polymer walls) is beginning to be emphasized.
In the polymer wall process, liquid crystal molecules and liquid crystal active monomers (reactionmonomers) are mixed in advance, and then a collimated ultraviolet light source is matched with a mask for local irradiation, so that the polymer wall is formed at a specific position.
However, if the local irradiation step is not precise or sufficient, the polymer wall structure is not easily formed in a predetermined area or a predetermined polymer wall structure is not easily formed.
Disclosure of Invention
In view of the above, an embodiment of the invention provides a display panel and a method for manufacturing the same, which can solve the problems of insufficient exposure range and large-angle color mixing.
The method for manufacturing a display panel according to an embodiment of the present invention includes: providing a color filter substrate, providing an opposite substrate, providing a liquid crystal layer comprising a plurality of liquid crystal molecules and a plurality of liquid crystal active monomers, and providing a light source from the color filter substrate side, so that light emitted by the light source penetrates through the light auxiliary layer to the liquid crystal layer, and the liquid crystal active monomers are converted into a polymer wall structure.
In an embodiment of the invention, a height of the optical auxiliary layer is greater than a height of the color filter layer.
In an embodiment of the invention, a width of the polymer wall structure is greater than a width of the light auxiliary layer.
In an embodiment of the invention, the color filter layers on both sides of the light auxiliary layer have the same color.
In an embodiment of the invention, the polymer wall structure has an optical isotropy.
In an embodiment of the invention, when the polymer wall structure is observed by an optical device in a state where the polymer wall structure is located between the upper polarizing layer and the lower polarizing layer, the polymer wall structure has a dark color.
The display panel of an embodiment of the present invention includes: the liquid crystal display device comprises a substrate, an opposite substrate, a liquid crystal layer and a polymer wall structure, wherein the substrate comprises a plurality of color filter layers and light auxiliary layers, and the polymer wall structure is positioned in the liquid crystal layer and at least partially overlapped with the light auxiliary layers.
In an embodiment of the invention, a height of the optical auxiliary layer is greater than a height of the color filter layer.
In an embodiment of the invention, a width of the polymer wall structure is equal to or greater than a width of the light auxiliary layer.
In an embodiment of the invention, the color filter layers on both sides of the light auxiliary layer have the same color.
In an embodiment of the invention, the polymer wall structure has an optical isotropy.
In an embodiment of the invention, the material of the photo-assist layer includes a curable resin composition.
In an embodiment of the invention, when the polymer wall structure is observed by an optical device in a state where the polymer wall structure is located between the upper polarizing layer and the lower polarizing layer, the polymer wall structure has a dark color.
In view of the above, the display panel and the manufacturing method thereof according to an embodiment of the invention can solve the problems of insufficient exposure range and large-angle color mixing.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1A is a schematic partial top view of a display panel according to an embodiment of the invention.
FIG. 1B is a cross-sectional view of a cross-sectional line AA' of FIG. 1A and a partial peripheral region of the display panel.
Fig. 2A is a schematic plan view of a modification of the display panel of the present invention.
Fig. 2B is a schematic top view of a modification of the display panel of the present invention.
Fig. 2C is a schematic top view of a modification of the display panel of the present invention.
Fig. 2D is a schematic plan view of a modification of the display panel of the present invention.
Fig. 3A to 3E are flow charts of a method for manufacturing a display panel according to the present invention.
Fig. 4A is a flowchart of a method for manufacturing a display panel according to the present invention.
Fig. 4B is a flowchart of a modification of the method for manufacturing a display panel according to the present invention.
Wherein the reference numerals are as follows:
1: display panel
10: color filter substrate
12: a first substrate
122: predetermined area
124: pixel region
14: light assist layer
16: color filter layer
16 r: red filter layer
16 b: blue filter layer
16g of: green filter layer
17: black matrix
18: spacer body
20: opposite substrate
30: liquid crystal layer
32: liquid crystal molecules
34. 35: liquid crystal reactive monomer
40. 42: polymer wall structure
50: mask and method for manufacturing the same
H1, H2: height
W1, W2, W3: width of
hv, hv': light (es)
Detailed Description
The illustrations presented herein are merely exemplary for the purpose of illustrating some aspects of the invention. Thus, the shape, number and proportional size of the various components shown in the schematic should not be used to limit the invention. For example, the actual number, size and shape of the predetermined regions and the pixel regions in the schematic diagram are only used as illustration, and do not represent that the actual number, size and shape of the predetermined regions and the pixel regions in the present invention are necessarily shown in the figure.
Fig. 1A is a schematic partial top view of a display panel 1 according to an embodiment of the invention. FIG. 1B is a cross-sectional view of a cross-sectional line AA' of FIG. 1A and a partial peripheral region of the display panel.
Referring to fig. 1A and fig. 1B, the display panel 1 includes a color filter substrate 10, an opposite substrate 20, a liquid crystal layer 30, and a polymer wall structure 40. In the present embodiment, the opposite substrate 20 is, for example, an active device array substrate, such as a thin film transistor pixel array substrate, but not limited thereto. In other variations, the opposite substrate 20 is, for example, a blank substrate, and the color filter substrate 10 is, for example, a coa (color filter on array) substrate, but not limited thereto.
The color filter substrate 10 includes a first substrate 12, a photo-assist layer 14, and a plurality of color filter layers 16. In addition, the color filter substrate 10 further includes a black matrix 17.
The first substrate 12 has a predetermined area 122 and a plurality of pixel areas 124. In one embodiment, the material of the first substrate 12 may be glass, quartz, organic polymer, or other transparent material.
The photo-assisted layer 14 is disposed on the first substrate 12 and substantially located in the predetermined area 122 but not in the pixel area 124, i.e., the photo-assisted layer 1 is completely located in the predetermined area 122 or a majority of the photo-assisted layer 1 is located in the predetermined area 122 and a small portion thereof exceeds the predetermined area 122. The material of the light assist layer 14 is not particularly limited as long as it is suitable for a photolithography process, which allows ultraviolet light to penetrate therethrough, and has high thermal stability. In one embodiment, the material of the photo-assist layer 14 includes a curable resin composition.
The photo-assist layer 14 may be formed from a curable resin composition that may include: alkali soluble resin, ethylene unsaturated monomer, blocked polyisocyanate, photoinitiator, multifunctional epoxy compound and/or polymer thereof, additive and solvent.
The alkali soluble resin can be methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, sec-butyl methacrylate, tert-butyl methacrylate, methyl acrylate, isopropyl acrylate, cyclohexyl methacrylate, 2-methylcyclohexyl methacrylate, dicyclopentenyl acrylate, dicyclopentenyl methacrylate, 1-adamantyl acrylate, 1-adamantyl methacrylate, dicyclopentenyl ethoxymethacrylate, isobornyl methacrylate, cyclohexyl acrylate, 2-methylcyclohexyl acrylate, dicyclopentenyl ethoxyacrylate, isobornyl acrylate, phenyl methacrylate, phenyl acrylate, benzyl acrylate, 2-hydroxyethyl methacrylate, styrene, o-methylstyrene, benzyl methacrylate, benzyl, Compounds such as m-methylstyrene, p-methoxystyrene, 1, 3-butadiene, isoprene, 2, 3-dimethyl-1, 3-butadiene, and polyimide. In addition, only one kind of the monomer may be used, or plural kinds thereof may be used.
The content of the ethylenically unsaturated monomer is preferably 2 to 50 parts by weight, more preferably 15 to 45 parts by weight, based on 100 parts by weight of the total alkali-soluble resin content, and the solubility in an aqueous alkaline solution is desirably within the above range.
The content of the blocked polyisocyanate is 2 to 50 parts by weight, preferably 15 to 45 parts by weight, based on 100 parts by weight of the total alkali-soluble resin content.
The content of the photoinitiator is 0 to 1 part by weight, preferably 0.01 to 0.5 part by weight, based on 100 parts by weight of the total alkali-soluble resin content.
Examples of the polyfunctional epoxy compound and/or a polymer thereof include glycidyl acrylate, glycidyl methacrylate, α -glycidyl ethacrylate, α -glycidyl n-propylacrylate, α -glycidyl n-butylacrylate, β -glycidyl methacrylate, β -glycidyl methacrylate, β -glycidyl ethacrylate, β -ethyl glycidyl methacrylate, 3, 4-epoxybutyl acrylate, 3, 4-epoxybutyl methacrylate, 6, 7-epoxyheptyl acrylate, 6, 7-epoxyheptyl methacrylate, α -epoxyheptyl ethacrylate, o-vinylbenzyl glycidyl ether, m-vinylbenzyl glycidyl ether, p-vinylbenzyl glycidyl ether, 3, 4-epoxycyclohexyl methacrylate and other ethylenically unsaturated compounds having an epoxy group, and a polymer or a copolymer of these compounds.
The content of the polyfunctional epoxy compound and/or its polymer is 0 to 10 parts by weight, preferably 2 to 8 parts by weight, based on 100 parts by weight of the total alkali-soluble resin content.
The content of the solvent is 20 to 90 parts by weight, preferably 50 to 80 parts by weight, based on 100 parts by weight of the total alkali-soluble resin content.
In one embodiment, the height H1 of the light assist layer 14 is 1.0 μm to 10.0 μm, preferably 3.0 μm to 5.0 μm.
In one embodiment, the width W1 of the light assist layer 14 is 5.0 μm to 30.0 μm, preferably 5 μm to 20 μm.
The color filter layer 16 is disposed on the first substrate 12 and located in the pixel region 124. In one embodiment, the color filter layer 16 may include a red filter layer 16r, a blue filter layer 16b, and a green filter layer 16 g.
In one embodiment, the height H1 of the light assist layer 14 is greater than the height H2 of the color filter layer 16. The height H2 of the color filter layer 16 is 1 μm to 5 μm, preferably 1.2 μm to 4 μm.
The arrangement manner of the red filter layer 16r, the blue filter layer 16b, and the green filter layer 16g in the pixel region 124 is not particularly limited. In the present embodiment, the color of the color filter layers 16 on both sides of the light auxiliary layer 14 may be the same, for example, in the case of the leftmost light auxiliary layer 14 in fig. 1B, the color filter layers 16 on both sides of the leftmost light auxiliary layer 14 are green filter layers 16 g. As shown in fig. 1A, one red filter layer 16r, one blue filter layer 16b, and one green filter layer 16g are provided in one pixel region 124, respectively, and the black matrix 17 is provided between the red filter layer 16r and the blue filter layer 16b and between the blue filter layer 16b and the green filter layer 16 g.
The arrangement of the color filter layers 16 in the pixel regions 124 need not be the same, and the color of the color filter layers 16 on both sides of the light auxiliary layer 14 may be the same, as shown in the modification of fig. 2A, and the difference between fig. 2A and fig. 1A is only that: in each pixel region 124 of fig. 2A, the color filter layers 16 are not arranged in the same manner, but the color of the color filter layers 16 on both sides of the light auxiliary layer 14 is the same between any two adjacent pixel regions 124.
Alternatively, as shown in the modification of fig. 2B, the red filter layer 16r, the blue filter layer 16B, and the green filter layer 16g may be provided so that two pixels are provided in one pixel region 124, and the respective color filter layers may be separated by the black matrix 17. Fig. 2B differs from fig. 1A only in that: in the pixel regions 124 of fig. 2B, each pixel region 124 corresponds to a width of two pixels (about a width of 6 sub-pixels) in the X direction, and each pixel region 124 corresponds to a length of one pixel in the Y direction.
Alternatively, as shown in the modification of fig. 2C, the red filter layer 16r, the blue filter layer 16b, and the green filter layer 16g may be provided so that four pixels are arranged in an array in one pixel region 124, and the respective color filter layers may be separated by the black matrix 17. Fig. 2C differs from fig. 1A only in that: in the pixel regions 124 of fig. 2C, each pixel region 124 corresponds to a width of two pixels (about 6 sub-pixels in width) in the X direction, and each pixel region 124 corresponds to a length of two pixels (about 2 sub-pixels in length) in the Y direction.
Alternatively, as shown in the modification of fig. 2D, the red filter layer 16r, the blue filter layer 16b, and the green filter layer 16g may be provided so that four pixels are arranged in an array in one pixel region 124, and the black matrix 17 may separate the respective color filter layers. Fig. 2D differs from fig. 2C only in that: the colors of the color filter layers 16 in the Y direction are arranged differently from those in fig. 2C, but the colors of the color filter layers 16 on both sides of the light auxiliary layer 14 are still the same between any two adjacent pixel regions 124.
In one embodiment, the width W2 of the black matrix 17 is substantially the same as the width W1 of the light assist layer 14. The width W2 of the black matrix 17 is 1 μm to 20 μm, preferably 3 μm to 15 μm.
The liquid crystal layer 30 is disposed between the color filter substrate 10 and the opposite substrate 20, and the liquid crystal layer 30 includes a plurality of liquid crystal molecules and a plurality of liquid crystal active monomers (not shown in fig. 1B).
Examples of the liquid crystal molecules include: the liquid crystal molecules that can be rotated or switched by a horizontal electric field or the liquid crystal molecules that can be rotated or switched by a vertical electric field are not limited thereto.
The liquid crystal reactive monomer may be exemplified by compounds represented by the following formulas (1) to (7):
Figure BDA0001513500340000071
in the formulae (1) to (5), R represents hydrogen (H), fluorine (F), chlorine (Cl), Cyanogen (CN), SCN, -SF5H、NO2A single-chain or branched alkyl group having 1 to 12 carbon atoms, or-X2-Sp2-P2。X1And X2Each independently represents-O-, -S-, -OCH2-、-CO-、-COO-、-OCO-、-CO-N0R-、-N0R-CO-、-SCH2-、-CH2S-, -CH-COO-, -OOC-CH-or a single bond. P1And P2Each independently represents a polymeric group; sp1Represents a spacer group or a single group, m ≧ 1, n ≧ 1, m L each independently represent fluorine, chlorine, cyanogen, or an alkyl group having 1 to 7 carbon atoms, an alkylcarbonyl group, an alkoxycarbonyl group, or an alkylcarbonyloxy group G1、G2Each independently represents-O-, -S-, -CO-, -COO-, -OCO-, -OCH2-、-SCH2-、-CH2S-、-CH＝CH-COO-、-OOC-CH＝CH-、-CF2O-、-OCF2-、-CF2S-、-SCF2-、-C2H4-、-CF2CH2-、-CH2CF2-、-CF2CF2-, -CH-, -CF-, -C.ident.C-or a single bond. Further, when R is a single-chain or branched alkyl group having 1 to 12 carbon atoms, one to two non-adjacent CH's therein2Groups may additionally be replaced by-O-, -S-, -CH ═ CH-, -CO-, -OCO-, -COO-, -S-CO-, -CO-S-, or-C.ident.C- (alkyne), and O and/or S atoms are not directly bonded to one another.
Figure BDA0001513500340000081
In formula (7), R' each independently represents a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, or a substituted or unsubstituted alkoxy group having 1 to 12 carbon atoms.
The "polymeric group" referred to herein may include an acrylate group or a methacrylate group, and the like.
In a preferred embodiment of the present invention, the liquid crystal reactive monomer may be exemplified by compounds represented by the following formula (8) or formula (9):
Figure BDA0001513500340000091
in addition, in a preferred embodiment of the present invention, the photoinitiator may further comprise a photoinitiator selected from oxybenzone, benzophenone, benzotriazole, 1-hydroxycyclohexyl phenyl ketone, Irgacure 651, 3690, 819 (both trade names, manufactured by Ciba) and derivatives of these compounds.
The total amount of the liquid crystal reactive monomer used is more than 0 and 30 parts by weight or less, preferably 3 to 20 parts by weight, based on 100 parts by weight of the total amount of the liquid crystal molecules used.
The polymer wall structures 40 are located in the liquid crystal layer 30, and the polymer wall structures 40 substantially at least partially overlap the light assist layer 14. The polymer wall structure 40 is provided with a light source from the color filter substrate 10 side, so that the light emitted from the light source can transmit through the light auxiliary layer 14 to the liquid crystal layer 30, so that the liquid crystal active monomer in the liquid crystal layer 30 can be converted into the polymer wall structure 40.
In one embodiment, the width W3 of the polymer wall structure 40 is greater than the width W1 of the light assist layer 14. The width W3 of the polymer wall structure 40 is 1 μm to 40 μm, preferably 5 μm to 30 μm.
The polymer wall structure 40 has optical isotropy (i.e. the value of the refractive index anisotropy (Δ n) is 0), so when the polymer wall structure 40 is located between an upper polarizing layer and a lower polarizing layer (not shown), and the polymer wall structure 40 is observed by an optical device, the polymer wall structure 40 has dark color, and can perform the same or similar function as the black matrix 17.
The present embodiment utilizes the specific arrangement of the light assist layer 14 and the color filter layer 16 in the display panel 1 to maintain the gap between the color filter layers. Therefore, the problem of insufficient exposure range in a partial area can be solved, and the problem of color mixing caused by light with a large angle can be avoided. On the other hand, a suitable polymer wall structure can be made without going through the COA process.
Fig. 3A to 3E, and fig. 4A and 4B are flowcharts illustrating a method for manufacturing a display panel according to an embodiment of the invention. It should be noted that fig. 3A to 3E use the same or similar reference numerals to denote the same or similar components along with the reference numerals and parts of the contents of the components of the embodiment of fig. 1A and 1B, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.
First, referring to fig. 3A, a predetermined area 122 and a pixel area 124 of a first substrate 12 are defined on the first substrate 12 to dispose a light assist layer 14. The photo-assist layer 14 may be formed by coating the curable resin composition on the first substrate 12, exposing and developing the curable resin composition on the predetermined region 122 with a mask having a specific pattern, and removing the curable resin composition on the pixel region 124 to obtain the photo-assist layer 14.
Next, referring to fig. 3B, a black matrix 17 is disposed on the pixel region 124 of the first substrate 12.
Then, referring to fig. 3C, a red filter layer 16r, a blue filter layer 16b and a green filter layer 16g are respectively disposed on the pixel region 124 of the first substrate 12.
Then, referring to fig. 3D, after an alignment film (not shown) is coated on the surface of the color filter layer 16, a spacer (spacer)18 is disposed at a specific position of the alignment film.
Thereafter, referring to fig. 3E, after an alignment film (not shown) is coated on the surface of the opposite substrate 20, a liquid crystal layer 30 is disposed between the color filter substrate 10 and the opposite substrate 20 to manufacture a liquid crystal cell. For example, the following two methods can be cited for producing the liquid crystal cell.
The first method comprises the following steps: first, the color filter substrate 10 and the counter substrate 20 are disposed opposite to each other with the spacer 18 interposed therebetween; bonding the color filter substrate 10 and the peripheral portion of the counter substrate 20 together using a sealant to form a cell gap; injecting liquid crystal molecules 32 and liquid crystal active monomers 34 into the cell gap through the injection hole; and the injection hole is closed, so that a liquid crystal cell can be manufactured.
The second method comprises the following steps: a method called a Drop On Drop (ODF) method. First, an ultraviolet-curable sealing material is applied, for example, to a predetermined portion on the color filter substrate 10 or the counter substrate 20 on which the alignment film is formed; dropping a mixture of liquid crystal molecules 32 and liquid crystal active monomers 34 on the alignment film surface; then, the color filter substrate 10 and the counter substrate 20 are bonded.
Finally, referring to fig. 4A, a mask 50 is provided on the color filter substrate 10 (i.e. the outer side of the first base 12), and a light source is provided on the color filter substrate 10 (i.e. the outer side of the first base 12), so that light hv emitted from the light source passes through a light-transmitting portion (not labeled) of the mask 50 and the light auxiliary layer 14 to the liquid crystal layer 30, so as to convert the liquid crystal active monomer 34 into the polymer wall structure 40.
Alternatively, as shown in the modification of fig. 4B, the liquid crystal active monomer 35 used in the present modification may react when exposed to light of a specific wavelength (for example, 313nm) that does not penetrate the color filter layer 16 but penetrates the light auxiliary layer 14. In this way, the color filter layer 16 itself can achieve the function of a mask, i.e. the light hv' emitted by the light source is transmitted through the auxiliary light layer 14 to the liquid crystal layer 30 without additionally providing a mask 50 on the color filter substrate 10 side, so that the liquid crystal active monomer 35 is converted into the polymer wall structure 42.
In summary, in the display panel and the manufacturing method thereof according to the embodiment of the invention, the light auxiliary layer is disposed in the color filter substrate, and the color filter layers on two sides of the light auxiliary layer have the same color, so that the problems of insufficient exposure range and large-angle color mixing in the polymer wall process can be solved.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (18)

1. A method of manufacturing a display panel, comprising:
providing a color filter substrate, comprising:
a first substrate having a predetermined region and a plurality of pixel regions;
a light auxiliary layer on the first substrate and substantially in the predetermined region but not in the pixel region; and
a plurality of color filter layers located in the pixel region, each color filter layer including a red filter layer, a blue filter layer and a green filter layer, black matrixes being disposed between the red filter layer and the blue filter layer and between the blue filter layer and the green filter layer, wherein the light auxiliary layer is located between two adjacent color filter layers and the filter layers at both sides of the light auxiliary layer have the same color;
providing a pair of facing substrates;
providing a liquid crystal layer between the color filter substrate and the opposite substrate, wherein the liquid crystal layer comprises a plurality of liquid crystal molecules and a plurality of liquid crystal active monomers; and
providing a light source from the side of the color filter substrate, and transmitting the light emitted from the light source to the liquid crystal layer through the light auxiliary layer to convert the liquid crystal active monomer into a polymer wall structure.
2. The method of claim 1, wherein the light assist layer has a height greater than a height of the color filter layer.
3. The method of manufacturing a display panel according to claim 1, wherein the height of the light assist layer is 1.0 μm to 10.0 μm.
4. The method of claim 1, wherein the polymer wall structure has a width greater than a width of the light assist layer.
5. The method of manufacturing a display panel according to claim 1, wherein the width of the polymer wall structure is 1 μm to 40 μm.
6. The method of claim 1, wherein the polymer wall structure has optical isotropy.
7. The method for manufacturing a display panel according to claim 6, wherein a material of the light assist layer comprises a curable resin composition.
8. The method for manufacturing a display panel according to claim 1, wherein the liquid crystal reactive monomer comprises at least one compound selected from the group consisting of compounds having an acrylate group and a methacrylate group.
9. The method for manufacturing a display panel according to claim 8, wherein the total amount of the liquid crystal reactive monomer used is more than 0 and 30 parts by weight or less based on 100 parts by weight of the total amount of the liquid crystal molecules used.
10. The method according to claim 1, wherein the polymer wall structure has a dark color when viewed through an optical device in a state where the polymer wall structure is located between an upper polarizing layer and a lower polarizing layer.
11. A display panel, comprising:
a color filter substrate, comprising:
a first substrate having a predetermined region and a plurality of pixel regions;
a light auxiliary layer on the first substrate and substantially in the predetermined region but not in the pixel region; and
a plurality of color filter layers located in the pixel region, each color filter layer including a red filter layer, a blue filter layer and a green filter layer, black matrixes being disposed between the red filter layer and the blue filter layer and between the blue filter layer and the green filter layer, wherein the light auxiliary layer is located between two adjacent color filter layers and the filter layers at both sides of the light auxiliary layer have the same color;
a counter substrate;
a liquid crystal layer located between the color filter substrate and the opposite substrate; and
a polymer wall structure in the liquid crystal layer, the polymer wall structure substantially overlapping the light assist layer at least in part.
12. The display panel of claim 11, wherein a height of the light assist layer is greater than a height of the color filter layer.
13. The display panel of claim 11, wherein the height of the light assist layer is 1.0 μ ι η to 10.0 μ ι η.
14. The display panel of claim 11, wherein the polymer wall structures have a width greater than a width of the light assist layer.
15. The display panel of claim 11, wherein the polymer wall structure has a width of 1 μ ι η to 40 μ ι η.
16. The display panel of claim 11, wherein the polymer wall structures have optical isotropy.
17. The display panel of claim 16, wherein the material of the photo-assist layer comprises a curable resin composition.
18. The display panel of claim 11, wherein the polymer wall structure has a dark color when viewed by an optical device in a state where the polymer wall structure is located in an upper polarizing layer and a lower polarizing layer.
CN201711369721.XA 2017-10-25 2017-12-19 Display panel and method for manufacturing the same Active CN107966847B (en)

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JPH0990326A (en) * 1995-09-26 1997-04-04 Sharp Corp Liquid crystal display element
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