CN102650750A - Highlight maintaining method for liquid crystal display - Google Patents
Highlight maintaining method for liquid crystal display Download PDFInfo
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- CN102650750A CN102650750A CN2011102846482A CN201110284648A CN102650750A CN 102650750 A CN102650750 A CN 102650750A CN 2011102846482 A CN2011102846482 A CN 2011102846482A CN 201110284648 A CN201110284648 A CN 201110284648A CN 102650750 A CN102650750 A CN 102650750A
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Abstract
The embodiment of the invention discloses a highlight maintaining method for a liquid crystal display. According to the maintaining method, a color diaphragm plate of the liquid crystal display is maintained and comprises a base plate as well as a black matrix and red-green-blue color diaphragms arranged on the base plate, wherein red-green-blue color diaphragms are separated by the black matrix, and laser is utilized for implementing the following steps of: ageing the color diaphragms of sub pixel points to be maintained and the black matrix at the peripheries of the sub pixel points; forming seams between the color diaphragms and a glass base plate; granulating the black matrixes at the peripheries of the color diaphragms to generate black particles; dispersing the black particles at the peripheries of the color diaphragms into the seams; using the laser with the strength being 12-17A.U if the color diaphragms of the sub pixel points are blue in the process that the seams are formed between the color diaphragms and the glass base plate; using the laser with the strength being 17-19A.U if the color diaphragms of the sub pixel points are green in the process that the seams are formed between the color diaphragms and the glass base plate; and using the laser with the strength being 23-25A.U if the color diaphragms of the sub pixel pints are red in the process that the seams are formed between the color diaphragms and the glass base plate. The highlight maintaining method is applied to the improvement of the highlight maintenance.
Description
Technical field
The invention belongs to liquid crystal panel manufacturing technology field, be specifically related to a kind of LCD bright spot method for maintaining.
Background technology
Along with the continuous development of electronic technology, LCD has become the most common display device.In the manufacture process of liquid crystal panel, the time regular meeting situation that certain subpixels is a bright spot appears, influence display quality, so need bright spot be keeped in repair into dim spot.The method for maintaining of traditional welding is substituted owing to the situation of low bright spot often occurs gradually.
At present, utilize laser will deceive matrix usually and cover on the color film, keep in repair the bright spot sub-pixel.But existing method for maintaining all adopts the identical laser of energy for the color film of three kinds of colors of red, green, blue, causes the low technical matters of success ratio of bright spot maintenance.
Summary of the invention
The embodiment of the invention provides a kind of LCD bright spot method for maintaining, has solved the low technical matters of existing method for maintaining success ratio.
For achieving the above object, embodiments of the invention adopt following technical scheme:
This LCD bright spot method for maintaining; Color lamina membranacea to LCD keeps in repair; This coloured silk lamina membranacea comprises substrate and is arranged at black matrix and the color film of redgreenblue on this substrate that three color films are spaced apart by black matrix, utilize laser to carry out following steps:
To by the color film of the sub-pixel point that keeped in repair and peripheral black matrix thereof, wear out;
Between said color film and glass substrate, form the slit;
Black matrix to said color film periphery carries out granulating, generates black particle;
The black particle of said color film periphery is diffused in the said slit;
Wherein, between said color film and glass substrate, form in the process in slit, if the color film of this sub-pixel point is blue, then the intensity of the laser that uses is 12 to 17A.U;
If the color film of this sub-pixel point is green, then the intensity of the laser that uses is 17 to 19A.U;
If the color film of this sub-pixel point is red, then the intensity of the laser that uses is 23 to 25A.U.
Compared with prior art; Technique scheme provided by the present invention has following advantage: to the color film of different colours, and to the different transmitances of laser, in the process that forms the slit; Adopt the laser of different-energy; Avoided phenomenons such as the slit is excessive, light leak, picture element flaw, improved the success ratio of bright spot maintenance, thereby solved the low technical matters of existing method for maintaining success ratio.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The application synoptic diagram of the bright spot method for maintaining that Fig. 1 is provided for embodiments of the invention 1;
Diagrammatic cross-section when the bright spot method for maintaining that Fig. 2 is provided for embodiments of the invention 1 carries out S101 to color membrane substrates;
Diagrammatic cross-section when the bright spot method for maintaining that Fig. 3 is provided for embodiments of the invention 1 carries out S102 to color membrane substrates;
Diagrammatic cross-section when the bright spot method for maintaining that Fig. 4 is provided for embodiments of the invention 1 carries out S103 to color membrane substrates;
The application synoptic diagram of the bright spot method for maintaining that Fig. 5 is provided for embodiments of the invention 2;
The application synoptic diagram of the bright spot method for maintaining that Fig. 6 is provided for embodiments of the invention 3;
The application synoptic diagram of the bright spot method for maintaining that Fig. 7 is provided for embodiments of the invention 4.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not paying creative work belongs to the scope that the present invention protects.
The embodiment of the invention provides a kind of LCD bright spot method for maintaining; Color lamina membranacea to LCD keeps in repair; This coloured silk lamina membranacea comprises substrate and is arranged at black matrix and the color film of redgreenblue on this substrate; Three color films are spaced apart by black matrix, utilize laser to carry out following steps:
To by the color film of the sub-pixel point that keeped in repair and peripheral black matrix thereof, wear out;
Between color film and glass substrate, form the slit;
Black matrix to color film periphery carries out granulating, generates black particle;
The black particle of color film periphery is diffused in the slit;
Wherein, between color film and glass substrate, form in the process in slit, if the color film of this sub-pixel point is blue (B), then the intensity of the laser that uses is 12 to 17A.U;
If the color film of this sub-pixel point is green (G), then the intensity of the laser that uses is 17 to 19A.U;
If the color film of this sub-pixel point is red (R), then the intensity of the laser that uses is 23 to 25A.U.
Color film to different colours; And to the different transmitances of laser; In the process that forms the slit, adopt the laser of different-energy, avoided phenomenons such as the slit is excessive, light leak, picture element flaw; Improve the success ratio of bright spot maintenance, thereby solved the low technical matters of existing method for maintaining success ratio.
Embodiment 1:
As shown in Figure 1, the liquid crystal panel that is the arrangement of square formation formula with the sub-pixel point is an example, and the blue subpixels point in the middle of being positioned among the figure is a sub-pixel point to be keeped in repair.The LCD bright spot method for maintaining that the embodiment of the invention provided, when repairing this blue sub-pixel point, utilize laser to carry out following steps:
Preferably, the optical maser wavelength of embodiment of the invention employing is 355nm.
S101: to by the color film of the sub-pixel point that keeped in repair and peripheral black matrix thereof (black matrix, BM) 1, wear out.
Concrete, utilize laser that the color film and the peripheral black matrix 1 thereof of the sub-pixel point that keeped in repair are carried out preheating, reach aging purpose, frame of broken lines is represented granular part among Fig. 2.As a preferred version, the intensity of laser is 2 to 3A.U in this process, wherein the relative value of A.U (Arbitrary Unit, arbitrary unit) expression laser intensity.
Through experimental verification, the too low slit of follow-up formation that will cause of laser energy is incomplete, and too high this sub-pixel sub-pixel point on every side that will cause of laser energy produces defect pixel (abnormal pixel) phenomenon.
S102: as shown in Figure 3, between color film and glass substrate 2, form the slit, the intensity of the laser that uses is 12 to 17A.U.
Concrete, laser changes the material of color film, and produces small contraction, thereby between color film and glass substrate 2, forms the slit.The blue color film is that the laser transmittance of 355nm is about 30% for wavelength; Through experimental verification, laser energy is too low will to cause formed slit incomplete, and laser energy is too high will to cause formed slit bigger than normal; So laser intensity is 12 between 17A.U the time, the slit effect of formation is best.
As a preferred version, the embodiment of the invention also comprises:
S102a: with by the adjacent red sub-pixel point of blue subpixels point that keeped in repair, wear out with the intersection of black matrix.
Because the defect pixel phenomenon takes place in red color film more easily, so the edge of the red sub-pixel point on the blue subpixels point that will be keeped in repair next door is aging again, make the intersection of color film and black matrix more level and smooth, prevent that defect pixel from taking place.In this process, the energy of laser also is 2 to 3A.U.
S103: the black matrix 1 to color film periphery, carry out granulating, generate black particle.
Concrete, as shown in Figure 1, laser is vertically moved in the left and right sides of this sub-pixel point along the direction of arrow repeatedly, the molecular link of the black matrix that color film is peripheral cuts off, and reaches granular purpose.
S104: as shown in Figure 4, the black particle that color film is peripheral is diffused in the slit.
Utilize laser, these sub-pixel point both sides be diffused in the formed slit of above-mentioned S102 by the black particle that granular black matrix 1 is generated, specifically can be divided into four the step carry out:
S1041: the center section that black particle is diffused into the slit.
Concrete, earlier black particle is diffused into the center section in slit, make the centre of this sub-pixel point be coated with black particle.In this process, the energy of laser is preferably 14 to 22A.U.
S1042: the peripheral part that black particle is diffused into the slit.
Concrete, further black particle is diffused into the peripheral part in slit, make this sub-pixel point integral body all be coated with black particle.In this process, the energy of laser is preferably 13 to 21A.U.
S1043: the part that black particle is diffused into black particle vacancy in the slit.
Concrete, black particle is diffused into the part of omitting in above-mentioned S1041 and the S1042 process, the leak of black particle in the blind.In this process, the energy of laser is lower than S1041, S1042 and S1044 afterwards, is preferably 10 to 18A.U.
S1044: with the black particle even diffused in the slit.
Concrete, with the black particle even diffused in the slit, make even, the smooth covering black particle of this sub-pixel point.In this process, the energy of laser is preferably 14 to 22A.U.
As a preferred version, before carrying out S1044, above-mentioned S1041 to S1043 is repeated for several times.Because human eye is lower to the perceptibility of blueness, so the number of times that repeats does not need too much.
To the color film of blueness transmitance to laser; In the process that forms the slit, adopt the laser of specific energy 12 to 17A.U, in other steps; Also all adopt the laser of particular energy; Avoided phenomenons such as the slit is excessive, light leak, picture element flaw, improved the success ratio of bright spot maintenance, thereby solved the low technical matters of existing method for maintaining success ratio.
Embodiment 2:
Present embodiment and embodiment 1 are basic identical, and its difference is: as shown in Figure 5, sub-pixel point to be keeped in repair in the present embodiment is for green, and the bright spot method for maintaining carries out following steps for utilizing laser:
S201:, wear out to by the color film of the sub-pixel point that keeped in repair and peripheral black matrix 1 thereof.
Concrete, utilize laser that the color film and the peripheral black matrix 1 thereof of the sub-pixel point that keeped in repair are carried out preheating, reach aging purpose.As a preferred version, the intensity of laser is 2 to 3A.U in this process.
Through experimental verification, the too low slit of follow-up formation that will cause of laser energy is incomplete, and too high this sub-pixel sub-pixel point on every side that will cause of laser energy produces the defect pixel phenomenon.
S202: between color film and glass substrate, form the slit, the intensity of the laser that uses is 17 to 19A.U.
Concrete, laser changes the material of color film, and produces small contraction, thereby between color film and glass substrate, forms the slit.The green tint film is that the laser transmittance of 355nm is lower than 10% for wavelength; Through experimental verification, laser energy is too low will to cause formed slit incomplete, and laser energy is too high will to cause formed slit bigger than normal; So laser intensity is 12 between 17A.U the time, the slit effect of formation is best.
As a preferred version, the embodiment of the invention also comprises:
S202a: with by the adjacent red sub-pixel point of green sub-pixels point that keeped in repair, wear out with the intersection of black matrix.
Because the defect pixel phenomenon takes place in red color film more easily, so the edge of the red sub-pixel point on the green sub-pixels point that will be keeped in repair next door is aging again, make the intersection of color film and black matrix more level and smooth, prevent that defect pixel from taking place.In this process, the energy of laser also is 2 to 3A.U.
S203: the black matrix to color film periphery, carry out granulating, generate black particle.
Concrete, laser is vertically moved in the left and right sides of this sub-pixel point along the direction of arrow repeatedly, the molecular link of the black matrix that color film is peripheral cuts off, and reaches granular purpose.
S204: the black particle of color film periphery is diffused in the slit.
Utilize laser, these sub-pixel point both sides be diffused in the formed slit of above-mentioned S202 by the black particle that granular black matrix generated, specifically can be divided into four the step carry out:
S2041: the center section that black particle is diffused into the slit.
Concrete, earlier black particle is diffused into the center section in slit, make the centre of this sub-pixel point be coated with black particle.In this process, the energy of laser is preferably 14 to 22A.U.
S2042: the peripheral part that black particle is diffused into the slit.
Concrete, further black particle is diffused into the peripheral part in slit, make this sub-pixel point integral body all be coated with black particle.In this process, the energy of laser is preferably 13 to 21A.U.
S2043: the part that black particle is diffused into black particle vacancy in the slit.
Concrete, black particle is diffused into the part of omitting in above-mentioned S2041 and the S2042 process, the leak of black particle in the blind.In this process, the energy of laser is lower than S2041, S2042 and S2044 afterwards, is preferably 10 to 18A.U.
S2044: with the black particle even diffused in the slit.
Concrete, with the black particle particle even diffused in the slit, make even, the smooth covering black particle of this sub-pixel point.In this process, the energy of laser is preferably 14 to 22A.U.
As a preferred version, before carrying out S2044, above-mentioned S2041 to S2043 is repeated for several times.Because human eye is the highest to the perceptibility of green, so than the blue subpixels of embodiment 1, S2041 to S2043 will repeat more times number in the present embodiment.
To the color film of green transmitance to laser; In the process that forms the slit, adopt the laser of specific energy 17 to 19A.U, in other steps; Also all adopt the laser of particular energy; Avoided phenomenons such as the slit is excessive, light leak, picture element flaw, improved the success ratio of bright spot maintenance, thereby solved the low technical matters of existing method for maintaining success ratio.
Embodiment 3:
Present embodiment and embodiment 1 are basic identical, and its difference is: as shown in Figure 6, sub-pixel point to be keeped in repair in the present embodiment is for red, and the bright spot method for maintaining carries out following steps for utilizing laser:
S301:, wear out to by the color film of the sub-pixel point that keeped in repair and peripheral black matrix 1 thereof.
Concrete, utilize laser that the color film and the peripheral black matrix 1 thereof of the sub-pixel point that keeped in repair are carried out preheating, reach aging purpose.As a preferred version, the intensity of laser is 2 to 3A.U in this process.
Through experimental verification, the too low slit of follow-up formation that will cause of laser energy is incomplete, and too high this sub-pixel sub-pixel point on every side that will cause of laser energy produces the defect pixel phenomenon.
S302: between color film and glass substrate, form the slit, the intensity of the laser that uses is 23 to 25A.U.
Concrete, laser changes the material of color film, and produces small contraction, thereby between color film and glass substrate, forms the slit.Red color film is that the laser transmittance of 355nm is about 30% for wavelength; And the phenomenon of defect pixel appears in red color film easily; So the formation slit was divided into for two steps and carries out: the first step is a warm; To prevent the phenomenon of defect pixel, second step formed the slit between color film and glass substrate, can improve the success ratio of maintenance.
Through experimental verification, laser energy is too low will to cause formed slit incomplete, and laser energy is too high will to cause formed slit bigger than normal, thus laser intensity 23 between 25A.U the time, the slit effect of formation is best.
As a preferred version, the embodiment of the invention also comprises:
S302a: wearing out with the color film of the red sub-pixel point that is keeped in repair and the intersection of black matrix.
Because the defect pixel phenomenon takes place in red color film more easily, so the color film of this red sub-pixel point edge and the intersection of black matrix are worn out again, make the intersection of color film and black matrix more level and smooth, prevent that defect pixel from taking place.In this process, the energy of laser also is 2 to 3A.U.
S303: the black matrix to color film periphery, carry out granulating, generate black particle.
Concrete, laser is vertically moved in the left and right sides of this sub-pixel point along the direction of arrow repeatedly, the molecular link of the black matrix that color film is peripheral cuts off, and reaches granular purpose.
S304: the black particle of color film periphery is diffused in the slit.
Utilize laser, these sub-pixel point both sides be diffused in the formed slit of above-mentioned S302 by the black particle that granular black matrix generated, specifically can be divided into four the step carry out:
S3041: the center section that black particle is diffused into the slit.
Concrete, earlier black particle is diffused into the center section in slit, make the centre of this sub-pixel point be coated with black particle.In this process, the energy of laser is preferably 14 to 22A.U.
S3042: the peripheral part that black particle is diffused into the slit.
Concrete, further black particle is diffused into the peripheral part in slit, make this sub-pixel point integral body all be coated with black particle.In this process, the energy of laser is preferably 13 to 21A.U.
S3043: the part that black particle is diffused into black particle vacancy in the slit.
Concrete, black particle is diffused into the part of omitting in above-mentioned S3041 and the S3042 process, the leak of black particle in the blind.In this process, the energy of laser is lower than S3041, S3042 and S3044, is preferably 10 to 18A.U.
S3044: with the black particle even diffused in the slit.
Concrete, with the black particle particle even diffused in the slit, make even, the smooth covering black particle of this sub-pixel point.In this process, the energy of laser is preferably 14 to 22A.U.
As a preferred version, before carrying out S3044, also to above-mentioned S3041 to S3043 be repeated for several times.
To the color film of redness transmitance to laser; In the process that forms the slit, adopt the laser of specific energy 23 to 25A.U, in other steps; Also all adopt the laser of particular energy; Avoided phenomenons such as the slit is excessive, light leak, picture element flaw, improved the success ratio of bright spot maintenance, thereby solved the low technical matters of existing method for maintaining success ratio.
Embodiment 4:
Present embodiment and embodiment 1 are basic identical, and its difference is: as shown in Figure 7, in the present embodiment, the sub-pixel point is honeycomb arrangement.In maintenance process, because it is shorter to be repaired the black matrix in the left and right sides of sub-pixel, thus also to carry out granulating for the black matrix of both sides about this sub-pixel point, in the slit that forms after being diffused into again.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. LCD bright spot method for maintaining; Color lamina membranacea to LCD keeps in repair, and this coloured silk lamina membranacea comprises substrate and be arranged at black matrix and the color film of redgreenblue on this substrate that three color films are spaced apart by black matrix; It is characterized in that, utilize laser to carry out following steps:
To by the color film of the sub-pixel point that keeped in repair and peripheral black matrix thereof, wear out;
Between said color film and glass substrate, form the slit;
Black matrix to said color film periphery carries out granulating, generates black particle;
The black particle of said color film periphery is diffused in the said slit;
Wherein, between said color film and glass substrate, form in the process in slit, if the color film of this sub-pixel point is blue, then the intensity of the laser that uses is 12 to 17A.U;
If the color film of this sub-pixel point is green, then the intensity of the laser that uses is 17 to 19A.U;
If the color film of this sub-pixel point is red, then the intensity of the laser that uses is 23 to 25A.U.
2. LCD bright spot method for maintaining according to claim 1 is characterized in that: between said color film and glass substrate, form after the slit, also comprise:
With by the blueness or the adjacent red sub-pixel point of green sub-pixels point that are keeped in repair, the color film of the red sub-pixel point that is perhaps keeped in repair at quilt and the intersection of black matrix wear out.
3. LCD bright spot method for maintaining according to claim 1 is characterized in that: said to by the color film of the sub-pixel point that keeped in repair and peripheral black matrix thereof, in the process that wears out, the intensity of laser is 2 to 3A.U.
4. LCD bright spot method for maintaining according to claim 1 is characterized in that: the black particle of said color film periphery is diffused in the said slit, is specially:
Said black particle is diffused into the center section in said slit;
Said black particle is diffused into the peripheral part in said slit;
Said black particle is diffused into the part of black particle vacancy in the said slit;
With the black particle even diffused in the said slit.
5. LCD bright spot method for maintaining according to claim 4 is characterized in that: said black particle being diffused in the process of center section in said slit, is 14 to 22A.U with light intensity.
6. LCD bright spot method for maintaining according to claim 4 is characterized in that: said black particle is diffused in the process of peripheral part in said slit, the intensity of laser is 13 to 21A.U.
7. LCD bright spot method for maintaining according to claim 4 is characterized in that: said black particle being diffused in the process of the part of black particle vacancy in the said slit, is 10 to 18A.U with light intensity.
8. LCD bright spot method for maintaining according to claim 4 is characterized in that: in the process with the black particle even diffused in the said slit, be 14 to 22A.U with light intensity.
9. LCD bright spot method for maintaining according to claim 1 is characterized in that: said Wavelength of Laser is 355nm.
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| JP7256012B2 (en) | 2017-07-07 | 2023-04-11 | 京東方科技集團股▲ふん▼有限公司 | Display panel repair method and display panel |
| US10705357B2 (en) | 2017-09-14 | 2020-07-07 | Boe Technology Group Co., Ltd. | Display substrate, display panel and method for repairing bright spots |
| CN107561769B (en) * | 2017-09-14 | 2021-01-29 | 京东方科技集团股份有限公司 | Packed substrate, method of manufacturing the same, display device, and method of repairing bright spot |
| CN107561769A (en) * | 2017-09-14 | 2018-01-09 | 京东方科技集团股份有限公司 | To the restorative procedure of box substrate and its manufacture method, display device and bright spot |
| CN107450209A (en) * | 2017-09-30 | 2017-12-08 | 京东方科技集团股份有限公司 | A kind of bright spot restorative procedure and color membrane substrates |
| US11372293B2 (en) | 2019-08-21 | 2022-06-28 | Hefei Boe Display Technology Co, Ltd. | Liquid crystal panel and repairing method using a laser thereof, and display device |
| CN112086048A (en) * | 2020-08-31 | 2020-12-15 | 苏州迈为科技股份有限公司 | OLED screen bright spot repairing method and device |
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