CN101303468A - Colored filter, manufacturing method thereof and LCD screen containing the optical filter - Google Patents
Colored filter, manufacturing method thereof and LCD screen containing the optical filter Download PDFInfo
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- CN101303468A CN101303468A CNA2007100743381A CN200710074338A CN101303468A CN 101303468 A CN101303468 A CN 101303468A CN A2007100743381 A CNA2007100743381 A CN A2007100743381A CN 200710074338 A CN200710074338 A CN 200710074338A CN 101303468 A CN101303468 A CN 101303468A
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Abstract
The invention relates to a color filter used in a semipermeable color liquid crystal display (LCD) screen, a method for making the color filter and a semipermeable color LCD screen with the color filter. The color filter of the invention comprises a lower transparent conducting film, a transparent insulating layer, a color filtration film, a black matrix and a lower glass base plate, wherein, the color filtration film and the black matrix are directly coated on the upper surface of the lower glass base plate; fine beads or filaments which can reflect light are evenly mixed in the color filtration film, thus saving the reflective film and balancing transmission and reflection. The making method includes that the fine beads or the filaments are evenly mixed in color filtration ink by a certain proportion; the color filtration ink is then coated on the upper surface of the lower glass base plate provided with the black matrix, and the developing is carried out in sequence based on the design requirements to form a color unit so as to prepare the color filtration film. The making method saves the steps of plating the reflective film and etching on the reflective film, therefore the technique is simple. Furthermore, the LCD screen adopts the color filter and has simple structure and balanced transmission and reflection.
Description
Technical field
The present invention relates to a kind of semi-transparency type chromatic liquid crystal screen, especially relate to a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen.
The present invention relates to a kind of chromatic liquid crystal screen, especially relate to a kind of semi-transparency type chromatic liquid crystal screen.
The invention still further relates to a kind of method for making of chromatic liquid crystal screen, especially relate to a kind of color filter making method that is used for the semi-transparency type chromatic liquid crystal screen.
Background technology
Chromatic liquid crystal screen is divided into full-transparency type chromatic liquid crystal screen and semi-transparency type chromatic liquid crystal screen.Existing semi-transparency type LCDs, as shown in Figure 1,, comprise polaroid 10, top glass substrate 1 successively, go up transparent conductive film 11, go up liquid crystal aligning layer 12, liquid crystal 6, liquid crystal aligning layer 22, colored filter 3, following polaroid 20 down toward direction from external light source toward backlight; This colored filter 3 comprises transparent conductive film 21, transparent insulating layer 4, color filter film 31, black matrix" 32, reflectance coating 7, lower glass substrate 2 down; Should go up polaroid 10 and stick on the upper surface of this top glass substrate 1, be coated with transparent conductive film 11 on the lower surface of this top glass substrate 1, on this on transparent conductive film 11 etching the image of required demonstration is arranged; This time polaroid 20 sticks on the lower surface of this lower glass substrate 2, and plating is provided with reflectance coating 7 on the upper surface of this lower glass substrate 2, and on the reflectance coating 7 there being and the corresponding image of the image of required demonstration etching, forms to make transmittance cross the opening 70 of this reflectance coating 7; Black matrix" 32 and color filter film 31 are coated on this reflectance coating 7, and this color filter film 31 is made up of some colour cells, and black matrix" 32 is separated each colour cell mutually; This opening 70 is corresponding with the colour cell of this color filter film 31; This transparent insulating layer 4 covers on this color filter film 31 and the black matrix" 32, is coated with transparent conductive film 21 down on this transparent insulating layer 4, and etching has the image of required demonstration on this time transparent conductive film 21; On this, be formed with upper and lower liquid crystal aligning layer 12,22 respectively on the opposite face of transparent conductive film 11 and this time transparent conductive film 21; On this time liquid crystal aligning layer 22, spray the liner bed of material 23 is arranged, be provided with around this time liquid crystal aligning layer 22 and can will descend the bonding frame adhesive 5 of liquid crystal aligning layer 22 and last liquid crystal aligning layer 12, the image of the required demonstration on the image of the required demonstration on this on transparent conductive film 11 and this time transparent conductive film 21 is corresponding; In the space that upper and lower liquid crystal aligning layer 12,22 and this frame adhesive 5 surround, be filled with liquid crystal 6.This semi-transparency type chromatic liquid crystal screen makes that the user can be in place outdoor or that surround lighting is strong, can see colored the demonstration, but, there is a problem all the time in the colored filter of this semi-transparency type chromatic liquid crystal screen: transmissivity and reflectivity limit mutually, high transmissivity promptly to be arranged or realize gay colours, reflectivity is necessarily lower (being lower than 1%) just, thereby cause the reflex time contrast-response characteristic poor; High reflectivity is arranged, and the colour filter film just can not be done too thickly so, thus color characteristics variation when making transmission.Though can adjust the size of transmissivity and reflectivity, thereby make the transmission of LCDs and the effect of reflection carry out equilibrium, complex structure, cost height by changing the size of reflectance coating upper shed.
The existing color filter making method that is used for the semi-transparency type chromatic liquid crystal screen is: 1. plate one deck reflectance coating on the upper surface of lower glass substrate, and according to designing requirement reflectance coating is carried out etching, make and the corresponding figure of the figure of required demonstration; 2. painting black printing ink on reflectance coating, and according to the designing requirement formation black matrix" that develops successively; 3. coating chromatic colour filter printing ink on reflectance coating, and, make the color filter film according to the designing requirement formation colour cell that develops successively; 4. be coated with transparent insulating layer on color filter film and black matrix", transparent insulating layer all covers color filter film and black matrix"; 5. on transparent insulating layer, plate nesa coating down.There is a contradiction all the time in the colored filter that is used for the semi-transparency type chromatic liquid crystal screen that makes with this method for making: transmissivity and reflectivity limit mutually, high transmissivity promptly to be arranged or realize gay colours, reflectivity is necessarily lower (being lower than 1%) just, thereby cause the reflex time contrast-response characteristic poor; High reflectivity is arranged, and the colour filter film just can not be done too thickly so, thus color characteristics variation when making transmission.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of colored filter semi-transparency type chromatic liquid crystal screen, simple in structure, transmission and reflection equilibrium that is used for.
For solving the problems of the technologies described above, a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen of the present invention comprises transparent conductive film, transparent insulating layer, color filter film, black matrix", lower glass substrate down; This transparent insulating layer is arranged on this color filter film and the black matrix"; Be formed with transparent conductive film down on this transparent insulating layer, it is characterized in that: described color filter film and described black matrix" are arranged on the upper surface of described lower glass substrate; Evenly being mixed with in the described color filter film can catoptrical thin pearl or filament.
As a kind of improvement of the present invention, wherein, the weight ratio of the color filter printing ink of described formation color filter film and described thin pearl or filament is 100: 1～100: 5.
As another kind of improvement the of the present invention, wherein, the diameter of described thin pearl is about 1um.
As another kind of improvement the of the present invention, wherein, the diameter of described filament is about 1um, and length is 2～3um.
As another kind of improvement the of the present invention, wherein, the surface of described thin pearl or filament one of is coated with in silver, gold, chromium, aluminium, the platinum or their one of alloy.
As another kind of improvement the of the present invention, wherein, described thin pearl is beaded glass or bead.
As another kind of improvement the of the present invention, wherein, described filament is glass fiber or tinsel.
A kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen of the present invention compared with prior art because described color filter film and black matrix" are arranged on the surface of described lower glass substrate; Evenly being mixed with in the described color filter film can catoptrical thin pearl or filament, has saved reflectance coating, simple in structure, transmission and reflection equilibrium, and display effect is good, at the bottom of the cost.
Another technical matters that the present invention will solve provides the semi-transparency type chromatic liquid crystal screen of a kind of simple in structure, transmission and reflection equilibrium.
For solving the problems of the technologies described above, the invention provides a kind of semi-transparency type chromatic liquid crystal screen, comprise polaroid, top glass substrate, last transparent conductive film, go up liquid crystal aligning layer, liquid crystal, following liquid crystal aligning layer, colored filter, following polaroid;
Should go up polaroid and stick on the upper surface of this top glass substrate, the lower surface of this top glass substrate is provided with transparent conductive film, on this on transparent conductive film etching the image of required demonstration is arranged, on this, be coated with liquid crystal aligning layer on the transparent conductive film;
This time polaroid sticks on the lower surface of this lower glass substrate, is coated with down liquid crystal aligning layer on the following nesa coating of this colored filter; Spraying on this time liquid crystal aligning layer has the liner bed of material, can with this time liquid crystal aligning layer and be somebody's turn to do liquid crystal aligning layer bonding frame adhesive being provided with of this time liquid crystal aligning layer all around; The image of the required demonstration on the image that should go up the required demonstration on transparent conductive film and this time transparent conductive film is corresponding;
In the space that this upper and lower liquid crystal aligning layer and this frame adhesive surround, be filled with liquid crystal;
Wherein, described colored filter is that in the technique scheme any is used for the colored filter of semi-transparency type chromatic liquid crystal screen.
A kind of semi-transparency type chromatic liquid crystal screen of the present invention compared with prior art because described color filter film and black matrix" are arranged on the upper surface of described lower glass substrate; Evenly being mixed with in the described color filter film can catoptrical thin pearl or filament, has saved reflectance coating, simple in structure, transmission and reflection equilibrium, and display effect is good, at the bottom of the cost.
The another technical matters that the present invention solves provides the color filter making method that is used for the semi-transparency type chromatic liquid crystal screen of a kind of simple in structure, transmission and reflection equilibrium.
For solving the problems of the technologies described above, the invention provides a kind of colored filter method for making that is used for the semi-transparency type chromatic liquid crystal screen, its step comprises:
1. in color filter printing ink, evenly mix a certain proportion of thin pearl or filament;
2. painting black printing ink on lower glass substrate, and according to the designing requirement formation black matrix" that develops;
3. coating chromatic colour filter printing ink on lower glass substrate, and, make the color filter film according to the designing requirement formation colour cell that develops;
4. be coated with transparent insulating layer on this color filter film and black matrix", this transparent insulating layer all covers color filter film and black matrix";
5. on this transparent insulating layer, plate nesa coating down.
As another kind of improvement the of the present invention, wherein, step 1. described in the color filter printing ink weight ratio of mixing with described thin pearl or filament be 100: 1～100: 5.
As another kind of improvement the of the present invention, wherein, be beaded glass or bead on the thin pearl of step described in 1., its diameter is about 1um; Described filament is glass fiber or tinsel, and its diameter is about 1um, and length is about 2～3um.
A kind of colored filter method for making that is used for the semi-transparency type chromatic liquid crystal screen of the present invention compared with prior art, owing in the color filter printing ink that forms the color filter film, evenly mix a certain proportion of thin pearl or filament, saved the plating reflectance coating and etched step on reflectance coating, technology is simple, the colored filter that is used for the semi-transparency type chromatic liquid crystal screen that utilizes a kind of colored filter method for making that is used for the semi-transparency type chromatic liquid crystal screen of the present invention to make, simple in structure, transmission and reflection equilibrium, display effect is good, at the bottom of the cost.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the sectional structure synoptic diagram of existing semi-transparency type chromatic liquid crystal screen.
Fig. 2 is the sectional structure synoptic diagram of a kind of semi-transparency type chromatic liquid crystal screen of the present invention.
Fig. 3 is the A portion enlarged diagram of Fig. 2.
Embodiment
See also Fig. 2 and Fig. 3, a kind of semi-transparency type chromatic liquid crystal screen of the present invention, last polaroid 10, top glass substrate 1, go up transparent conductive film 11, go up liquid crystal aligning layer 12, liquid crystal 6, liquid crystal aligning layer 22, colored filter 3, polaroid 20 down down.
Should go up polaroid 10 sticks on the upper surface of this top glass substrate 1, be coated with transparent conductive film 11 on the lower surface of this top glass substrate 1, etching has the image of required demonstration on this last transparent conductive film 11, is coated with liquid crystal aligning layer 12 on this on the transparent conductive film 11;
This colored filter 3 comprises transparent conductive film 21, transparent insulating layer 4, color filter film 31 and black matrix" 32, lower glass substrate 2 down.This time polaroid 20 sticks on the lower surface of this lower glass substrate 2; Evenly being mixed with in the color filter film 31 can catoptrical thin pearl 33 or filament, the diameter of this thin pearl 33 or filament is about 1um, the length of this filament is about 2～3um, and forming the color filter printing ink of color filter film 31 and the weight ratio of described thin pearl 33 or filament is 100: 1～100: 5; This color filter film 31 and black matrix" 32 are coated on the upper surface of described lower glass substrate 2; This transparent insulating layer 4 is coated on this color filter film 31 and the black matrix" 32; Coating is formed with transparent conductive film 21 down on this transparent insulating layer 4, and etching has the image of required demonstration on this time transparent conductive film 21.On this time transparent conductive film 21, be coated with liquid crystal aligning layer 22 down; Also spraying on this time liquid crystal aligning layer 22 has the liner bed of material 23, be provided with around this time liquid crystal aligning layer 22 can with descend liquid crystal aligning layer 22 with this on the bonding frame adhesive 5 of liquid crystal aligning layer 12; The image of the required demonstration on the image that should go up the required demonstration on transparent conductive film 11 and this time transparent conductive film 21 is corresponding;
In the space that this upper and lower liquid crystal aligning layer 12,22 and this frame adhesive 5 surround, be filled with liquid crystal 6.
Described thin pearl 33 is beaded glass or bead.
Described filament is glass fiber or tinsel.
In order to improve reflecting effect, one of be coated with on the surface of described thin pearl 33 or filament in silver, gold, chromium, aluminium, the platinum or their one of alloy.
A kind of color filter making method that is used for the semi-transparency type chromatic liquid crystal screen of the present invention, its step comprises:
1. in color filter printing ink, evenly mix a certain proportion of thin pearl or filament;
2. painting black printing ink on lower glass substrate, and according to the designing requirement formation black matrix" that develops;
3. coating chromatic colour filter printing ink on lower glass substrate, and, make the color filter film according to the designing requirement formation colour cell that develops;
4. be coated with transparent insulating layer on this color filter film and black matrix", this transparent insulating layer all covers color filter film and black matrix";
5. on this transparent insulating layer, plate nesa coating down.
On the thin pearl of step described in 1. is beaded glass or bead, and its diameter is about 1um; Described filament is glass fiber or tinsel, and its diameter is about 1um, and length is about 2～3um.
Claims (11)
1. a colored filter that is used for the semi-transparency type chromatic liquid crystal screen comprises transparent conductive film, transparent insulating layer, color filter film, black matrix", lower glass substrate down; This transparent insulating layer is arranged on this color filter film and the black matrix"; Be formed with transparent conductive film down on this transparent insulating layer, it is characterized in that: described color filter film and described black matrix" are arranged on the upper surface of described lower glass substrate; Evenly being mixed with in the described color filter film can catoptrical thin pearl or filament.
2. a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen as claimed in claim 1 is characterized in that: the weight ratio of the color filter printing ink of described formation color filter film and described thin pearl or filament is 100: 1～100: 5.
3. a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen as claimed in claim 1, it is characterized in that: the diameter of described thin pearl is about 1um.
4. a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen as claimed in claim 1, it is characterized in that: the diameter of described filament is about 1um, and length is 2～3um.
5. a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen as claimed in claim 1 is characterized in that: the surface of described thin pearl or filament one of is coated with in silver, gold, chromium, aluminium, the platinum or their one of alloy.
6. a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen as claimed in claim 1 is characterized in that: described thin pearl is beaded glass or bead.
7. a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen as claimed in claim 1 is characterized in that: described filament is glass fiber or tinsel.
8. a semi-transparency type chromatic liquid crystal screen comprises polaroid, top glass substrate, last transparent conductive film, goes up liquid crystal aligning layer, liquid crystal, following liquid crystal aligning layer, colored filter, following polaroid;
Should go up polaroid and stick on the upper surface of this top glass substrate, the lower surface of this top glass substrate is provided with transparent conductive film, on this on transparent conductive film etching the image of required demonstration is arranged, on this, be coated with liquid crystal aligning layer on the transparent conductive film;
This time polaroid sticks on the lower surface of this lower glass substrate, is coated with down liquid crystal aligning layer on the following nesa coating of this colored filter; Spraying on this time liquid crystal aligning layer has the liner bed of material, can with this time liquid crystal aligning layer and be somebody's turn to do liquid crystal aligning layer bonding frame adhesive being provided with of this time liquid crystal aligning layer all around; The image of the required demonstration on the image that should go up the required demonstration on transparent conductive film and this time transparent conductive film is corresponding;
In the space that this upper and lower liquid crystal aligning layer and this frame adhesive surround, be filled with liquid crystal;
It is characterized in that: described colored filter is each described a kind of colored filter that is used for the semi-transparency type chromatic liquid crystal screen in the claim 1 to 7.
9. as each described a kind of color filter making method that is used for the semi-transparency type chromatic liquid crystal screen in the claim 1 to 7, its step comprises:
1. in color filter printing ink, evenly mix a certain proportion of thin pearl or filament;
2. painting black printing ink on lower glass substrate, and according to the designing requirement formation black matrix" that develops;
3. coating chromatic colour filter printing ink on lower glass substrate, and, make the color filter film according to the designing requirement formation colour cell that develops;
4. be coated with transparent insulating layer on this color filter film and black matrix", this transparent insulating layer all covers color filter film and black matrix";
5. on this transparent insulating layer, plate nesa coating down.
10. the color filter making method of a kind of semi-transparency type chromatic liquid crystal screen as claimed in claim 9 is characterized in that: step 1. described in the color filter printing ink weight ratio of mixing with described thin pearl or filament be 100: 1～100: 5.
11. the color filter making method of a kind of semi-transparency type chromatic liquid crystal screen as claimed in claim 9 is characterized in that: on the thin pearl of step described in 1. is beaded glass or bead, and its diameter is about 1um; Described filament is glass fiber or tinsel, and its diameter is about 1um, and length is about 2～3um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100743381A CN101303468A (en) | 2007-05-09 | 2007-05-09 | Colored filter, manufacturing method thereof and LCD screen containing the optical filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100743381A CN101303468A (en) | 2007-05-09 | 2007-05-09 | Colored filter, manufacturing method thereof and LCD screen containing the optical filter |
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| CN101303468A true CN101303468A (en) | 2008-11-12 |
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| CNA2007100743381A Pending CN101303468A (en) | 2007-05-09 | 2007-05-09 | Colored filter, manufacturing method thereof and LCD screen containing the optical filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019206013A1 (en) * | 2018-04-25 | 2019-10-31 | 京东方科技集团股份有限公司 | Reflective pixel unit, reflective display panel and display device |
| CN110687714A (en) * | 2019-10-14 | 2020-01-14 | 深圳市华星光电技术有限公司 | COA array substrate and liquid crystal display panel |
| CN111722429A (en) * | 2020-08-06 | 2020-09-29 | 业成光电(无锡)有限公司 | Touch control display device |
-
2007
- 2007-05-09 CN CNA2007100743381A patent/CN101303468A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019206013A1 (en) * | 2018-04-25 | 2019-10-31 | 京东方科技集团股份有限公司 | Reflective pixel unit, reflective display panel and display device |
| US11092840B2 (en) | 2018-04-25 | 2021-08-17 | Boe Optical Science And Technology Co., Ltd. | Reflective pixel unit, reflective display panel and display apparatus |
| CN110687714A (en) * | 2019-10-14 | 2020-01-14 | 深圳市华星光电技术有限公司 | COA array substrate and liquid crystal display panel |
| CN111722429A (en) * | 2020-08-06 | 2020-09-29 | 业成光电(无锡)有限公司 | Touch control display device |
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Open date: 20081112 |