CN100573261C - Color membrane substrates and manufacture method thereof - Google Patents
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Abstract
The present invention relates to a kind of color membrane substrates and manufacture method thereof.The color membrane substrates manufacture method comprises: form black matrix, red pixel, green pixel and blue pixel figure on substrate, described blue pixel is directly to see through blue white space figure backlight, contain the red light fluorescent powder that blue-ray LED excites in the described red pixel, contain the green emitting phosphor that blue-ray LED excites in the green pixel; Make the levelling protective seam, and make surfacingization; On substrate, form transparency electrode.The present invention utilizes the autoluminescence characteristic of blue-ray LED excited fluorescent powder, not only can improve utilization ratio backlight and reach more than 2.5 times, has advantages such as the visual angle is wide simultaneously.The present invention directly sees through the blue light that backlight sends by form the white space as blue pixel on substrate, and the service efficiency of bias light is reached 100%, not only can save 1/3 resin material, and further reduce display device energy consumption and cost.
Description
Technical field
The present invention relates to a kind of LCD and manufacture method thereof, especially a kind of color membrane substrates and manufacture method thereof.
Background technology
Along with developing rapidly of flat panel display, because panel display apparatus has advantages such as low in energy consumption, frivolous, progressively replaced traditional CRT monitor, entered in the daily life fast.Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display wherein, be called for short TFT-LCD) since characteristics such as the life-span is long, low in energy consumption and radiationless and being accepted by consumers in general be widely applied among people's the life and production.But seek low, low in energy consumption, the more frivolous LCD of production cost is the target that people pursue always.
The primary structure of TFT-LCD comprises that to box array base palte and color membrane substrates together actual the use shows that there is following technological deficiency in the color membrane substrates that adopts among the prior art TFT-LCD:
(1) because existing color membrane substrates all is will unnecessary light absorption to filter out by the pigment that doping has an extinction function to realize red (R), green (G), blue (B) demonstration, most of light from backlight is absorbed, and therefore utilization ratio backlight has only about 30%;
(2) well-known, it is narrower that one of defective of liquid crystal display is exactly its visual angle, and existing color membrane substrates be owing to can only realize filtration to light, thereby can not improve the defective of liquid crystal display narrow viewing angle.
Summary of the invention
The purpose of this invention is to provide a kind of color membrane substrates and manufacture method thereof, effectively solve existing color membrane substrates and have the low technological deficiency of utilization ratio backlight.
To achieve these goals, the invention provides a kind of color membrane substrates manufacture method, comprising:
Step 1, on substrate, form black matrix, red pixel, green pixel and blue pixel figure, described blue pixel is directly to see through blue white space figure backlight, contain the red light fluorescent powder that blue-ray LED excites in the described red pixel, contain the green emitting phosphor that blue-ray LED excites in the green pixel; Described red pixel, green pixel and blue pixel be shaped as nested combination of shapes, L shaped green pixel is positioned at the left side, L shaped red pixel is positioned at the right side, and is oppositely arranged with green pixel, and the blue pixel of area minimum is nested between red pixel and the green pixel; The area ratio of described red pixel, green pixel and blue pixel is 27～33: 54～66: 6～8;
Step 2, on the substrate of completing steps 1, make the levelling protective seam, and make surfacingization;
Step 3, on the substrate of completing steps 2, form transparency electrode.
Preferably, the area of described red pixel, green pixel and blue pixel ratio is 30: 60: 7.
On the technique scheme basis, described step 1 can comprise: step 11, on substrate the black matrix film of deposition one deck, forms on substrate by mask process and to deceive the matrix figure; Step 12, on the substrate of completing steps 11, prepare red pixel figure and green pixel figure successively, and form a white space figure as blue pixel.Described step 1 also can comprise: step 21, prepare red pixel figure and green pixel figure successively on substrate, and form a white space figure as blue pixel; Step 22, on the substrate of completing steps 21 the black matrix film of deposition one deck, forms on substrate by mask process and to deceive the matrix figure.
To achieve these goals, the present invention also provides a kind of color membrane substrates, comprise substrate, be formed with black matrix, red pixel, green pixel and blue pixel on the described substrate, contain the red light fluorescent powder that blue-ray LED excites in the described red pixel, contain the green emitting phosphor that blue-ray LED excites in the described green pixel, described blue pixel is directly to see through blue white space figure backlight; Described red pixel, green pixel and blue pixel be shaped as nested combination of shapes, L shaped green pixel is positioned at the left side, L shaped red pixel is positioned at the right side, and is oppositely arranged with green pixel, and the blue pixel of area minimum is nested between red pixel and the green pixel; The area ratio of described red pixel, green pixel and blue pixel is 27～33: 54～66: 6～8.
Preferably, the area of described red pixel, green pixel and blue pixel ratio is 30: 60: 7.
The invention provides a kind of color membrane substrates and manufacture method thereof based on the blue-ray LED back light source system, utilize the blue light backlight and in resin film, be mixed with blue-ray LED excited fluorescent powder, the blue-ray LED backlight send blue-light excited down, red pixel and green pixel can be distinguished red-emitting and green glow, in conjunction with the blue light that directly sees through from white space, can obtain the RGB three primary colours, thereby under the modulation of liquid crystal, one-tenth full color capable of being combined shows.The present invention utilizes the autoluminescence characteristic of blue-ray LED excited fluorescent powder, not only can improve utilization ratio backlight and reach more than 2.5 times, has advantages such as the visual angle is wide simultaneously.Particularly, phosphor material powder is a kind of self-luminescent material, and then there is not the angle limitations problem in self-luminescent material, and its visual angle level can reach the level of existing CRT monitor.Blue-ray LED excited fluorescent powder luminescence efficiency is higher, use blue-light excited red light fluorescent powder and green light fluorescent powder, its luminescence efficiency can reach more than 70%, be existing more than 2.5 times of color film display packing light utilization ratio, the present invention directly sees through the blue light that backlight sends by form the white space as blue pixel on substrate, and the service efficiency of bias light is reached 100%, not only can save 1/3 resin material, and further reduce display device energy consumption and cost.The area ratio of red pixel of the present invention, green pixel and blue pixel is 27～33: 54～66: 6～8, can improve the tone of image to greatest extent.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the process flow diagram of color membrane substrates manufacture method first embodiment of the present invention;
Fig. 2～Fig. 4 is the synoptic diagram of color membrane substrates manufacture method first embodiment of the present invention;
Fig. 5～Fig. 7 is the synoptic diagram of each colored pixels shape among color membrane substrates manufacture method first embodiment of the present invention;
Fig. 8 is the process flow diagram of color membrane substrates manufacture method second embodiment of the present invention;
Fig. 9, Figure 10 are the synoptic diagram of color membrane substrates manufacture method second embodiment of the present invention;
Figure 11 is the structural representation of color membrane substrates of the present invention.
Description of reference numerals:
10-deceives matrix; The 11-red pixel; The 12-green pixel;
The 13-blue pixel.
Embodiment
Color membrane substrates manufacture method of the present invention comprises:
Step 1, on substrate, form black matrix, red pixel, green pixel and blue pixel figure, described blue pixel is directly to see through blue white space figure backlight, contain the red light fluorescent powder that blue-ray LED excites in the described red pixel, contain the green emitting phosphor that blue-ray LED excites in the green pixel;
Step 2, on the substrate of completing steps 1, make the levelling protective seam, and make surfacingization;
Step 3, on the substrate of completing steps 2, form transparency electrode.
Describe technical solution of the present invention in detail below by specific embodiment, wherein, the alleged mask process of the present invention comprises with mask plate exposure and etching technics.
Fig. 1 is the process flow diagram of color membrane substrates manufacture method first embodiment of the present invention, specifically comprises:
Fig. 2～Fig. 4 is the synoptic diagram of color membrane substrates manufacture method first embodiment of the present invention.In the present embodiment, at first go up the black matrix film of deposition one deck, utilize black matrix mask plate that black matrix film is carried out exposure-processed, on substrate, form black matrix 10 figures, as shown in Figure 2 at substrate (as transparent glass substrate or quartz base plate).
Afterwards, on the substrate that forms black matrix 10 figures, apply one deck such as (as spin coating) and be mixed with the red resin film of the red light fluorescent powder particle that blue-ray LED excites, by the red pixel mask plate red resin film is carried out exposure-processed, form exposure area and unexposed area, exposure area in UV-irradiation, the red resin film is fixed on the substrate, utilize aqueous slkali that the red resin film of unexposed area is etched away, on substrate, form rectangular-shaped red pixel 11 figures, as shown in Figure 3.
Subsequently, on the substrate that forms red pixel 11 figures, apply one deck such as (as spin coating) and be mixed with the green resin film of the green light fluorescent powder particle that blue-ray LED excites, by the green pixel mask plate green resin film is carried out exposure-processed, form exposure area and unexposed area, exposure area in UV-irradiation, the green resin film is fixed on the substrate, utilize aqueous slkali that the green resin film of unexposed area is etched away, on substrate, form rectangular-shaped green pixel 12 figures, as shown in Figure 4.
At this moment, black matrix 10, red pixel 11 and green pixel 12 figures on substrate, have been formed, also form a rectangular-shaped white space figure that does not deposit or apply any film simultaneously, this white space figure is a transmission region, with directly seeing through the blue light that backlight sends, therefore in fact as blue pixel 13.In actual use, in order when showing, to realize the white light modulation, need guarantee under backlight, to make red light: green light: blue light=3: 6: 1 with constant power.Therefore when technique scheme is carried out the colour element graphic making, it is identical when identical with light-emitting phosphor efficient to sneak into resin concentration at fluorescent powder, and present embodiment is by adjusting the modulation that each colored pixels area of graph realizes light intensity.Consider the luminescence efficiency of red pixel and green pixel, suppose that the luminescence efficiency of red light, green light is identical and be 65%～75%, white space as blue pixel directly sees through blue backlight, its luminescence efficiency is 95%～100%, then according to red light: green light: the proportional distribution of blue light=3: 6: 1, the area ratio of present embodiment red pixel, green pixel and blue pixel is 27～33: 54～66: 6～8, preferably, the area of red pixel, green pixel and blue pixel ratio is 30: 60: 7.
Fig. 5～Fig. 7 is the synoptic diagram of each colored pixels shape among color membrane substrates manufacture method first embodiment of the present invention.Above-mentioned area than the basis on, the shape of red pixel 11, green pixel 12 and blue pixel 13 can have multiple combination of shapes.For example, combination of shapes can be the bar shape combination that is arranged in order, but rectangular-shaped blue pixel 13 has the little characteristics of pixel pitch, as shown in Figure 5 between rectangular-shaped red pixel 11 and green pixel 12; Also can be the piece shape combination of shapes of arranged in proximity, can obtain the image of tone nature, as shown in Figure 6; Further, can also be nested combination of shapes, can improve aperture opening ratio to greatest extent, as shown in Figure 7.For nested combination of shapes, its features of shape is: L shaped green pixel 12 is positioned at the left side, and L shaped red pixel 11 is positioned at the right side, and is oppositely arranged with green pixel 12, and the blue pixel 13 of area minimum is nested between red pixel 11 and the green pixel 12.Certainly, the combination of shapes of red pixel, green pixel and blue pixel can also be usual other combination of shapes that adopt of those skilled in the art.
At last, finishing making levelling protective seam on the substrate of above-mentioned figure,, and make surfacingization with the protection pixel cell; At levelling protective seam surface sputtering ito transparent electrode, as liquid crystal control electrode (Common electrode).Need to prove, form the green pixel figure again after both can having formed the red pixel figure earlier in the present embodiment step 12, form the red pixel figure again after also can forming the green pixel figure earlier, equally can reach the technology of the present invention effect.
Fig. 8 is the process flow diagram of color membrane substrates manufacture method second embodiment of the present invention, specifically comprises:
Fig. 9, Figure 10 are the synoptic diagram of color membrane substrates manufacture method second embodiment of the present invention.In the present embodiment, at first go up to apply one deck such as (as spin coating) and be mixed with the green resin film of the green light fluorescent powder particle that blue-ray LED excites at substrate (as transparent glass substrate or quartz base plate), by the green pixel mask plate green resin film is carried out exposure-processed, form exposure area and unexposed area, exposure area in UV-irradiation, the green resin film is fixed on the substrate, utilize aqueous slkali that the green resin film of unexposed area is etched away, on substrate, form green pixel 12 figures, as shown in Figure 9.
Afterwards, on the substrate that forms green pixel 12 figures, apply one deck such as (as spin coating) and be mixed with the red resin film of the red light fluorescent powder particle that blue-ray LED excites, by the red pixel mask plate red resin film is carried out exposure-processed, form exposure area and unexposed area, exposure area in UV-irradiation, the red resin film is fixed on the substrate, utilize aqueous slkali that the red resin film of unexposed area is etched away, on substrate, form red pixel 11 figures, as shown in figure 10.
Subsequently, the black matrix film of deposition one deck on the substrate that forms red pixel 11 and green pixel 12 figures utilizes black matrix mask plate that black matrix film is carried out exposure-processed, forms black matrix 10 figures on substrate, as shown in Figure 4.
At last, finishing making levelling protective seam on the substrate of above-mentioned figure,, and make surfacingization with the protection pixel cell; At levelling protective seam surface sputtering ito transparent electrode, as liquid crystal control electrode (Common electrode).Need to prove, form the red pixel figure again after both can having formed the green pixel figure earlier in the present embodiment step 11, form the green pixel figure again after also can forming the red pixel figure earlier, equally can reach the technology of the present invention effect.
The area ratio of present embodiment red pixel, green pixel and blue pixel is 27～33: 54～66: 6～8, and preferably, the area of red pixel, green pixel and blue pixel ratio is 30: 60: 7.The combination of shapes of each colored pixels is identical with first embodiment, repeats no more.
Further, the above embodiment of the present invention can also comprise the step of making exposure mask plate and preparation color resin.Make the exposure mask plate and comprise making red pixel mask plate and green pixel mask plate, determine the area ratio and the shape of each colored pixels according to above stated specification.The preparation color resin comprises sneaks into phosphor material powder in the transparent liquid resin and stirs.
The above embodiment of the present invention provides a kind of color membrane substrates manufacture method, utilize the blue light backlight and in resin film, be mixed with blue-ray LED excited fluorescent powder, the blue-ray LED backlight send blue-light excited down, red pixel and green pixel can be distinguished red-emitting and green glow, in conjunction with the blue light that directly sees through from white space, can obtain the RGB three primary colours, thereby under the modulation of liquid crystal, one-tenth full color capable of being combined shows.The present invention utilizes the autoluminescence characteristic of blue-ray LED excited fluorescent powder, not only can improve utilization ratio backlight and reach more than 2.5 times, has advantages such as the visual angle is wide simultaneously.Particularly, phosphor material powder is a kind of self-luminescent material, and then there is not the angle limitations problem in self-luminescent material, and its visual angle level can reach the level of existing CRT monitor.Blue-ray LED excited fluorescent powder luminescence efficiency is higher, use blue-light excited red light fluorescent powder and green light fluorescent powder, its luminescence efficiency can reach more than 70%, be existing more than 2.5 times of color film display packing light utilization ratio, the present invention directly sees through the blue light that backlight sends by form the white space as blue pixel on substrate, and the service efficiency of bias light is reached 100%, not only can save 1/3 resin material, and further reduce display device energy consumption and cost.The area ratio of red pixel of the present invention, green pixel and blue pixel is 27～33: 54～66: 6～8, can improve the tone of image to greatest extent.
Figure 11 is the structural representation of color membrane substrates of the present invention.As shown in figure 11, color membrane substrates of the present invention comprises the black matrix 10 that is formed on the substrate, red pixel 11, green pixel 12 and as the white space of blue pixel 13, wherein contain the red light fluorescent powder that blue-ray LED excites in the red pixel 11, contain the green emitting phosphor that blue-ray LED excites in the green pixel 12, white space as blue pixel 13 does not deposit or applies any film, is directly to see through the transmission region that backlight sends blue light.The area ratio of red pixel, green pixel and blue pixel is 27～33: 54～66: 6～8, and preferably, the area of red pixel, green pixel and blue pixel ratio is 30: 60: 7.In addition, above-mentioned area than the basis on, the shape of red pixel 11, green pixel 12 and blue pixel 13 can have multiple combination of shapes, for example, combination of shapes can be the bar shape combination that is arranged in order, but rectangular-shaped blue pixel 13 has the little characteristics of pixel pitch, as shown in Figure 5 between rectangular-shaped red pixel 11 and green pixel 12; Also can be the piece shape combination of shapes of arranged in proximity, can obtain the image of tone nature, as shown in Figure 6; Can also be nested combination of shapes, can improve aperture opening ratio to greatest extent, as shown in Figure 7.For nested combination of shapes, its features of shape is: L shaped green pixel 12 is positioned at the left side, and L shaped red pixel 11 is positioned at the right side, and is oppositely arranged with green pixel 12, and the blue pixel 13 of area minimum is nested between red pixel 11 and the green pixel 12.Certainly, the combination of shapes of red pixel, green pixel and blue pixel can also be usual other combination of shapes that adopt of those skilled in the art.Further, also be formed with levelling protective seam and transparency electrode on black matrix and the colour element.
The invention provides a kind of color membrane substrates, utilize the blue light backlight and in resin film, be mixed with blue-ray LED excited fluorescent powder, the blue-ray LED backlight send blue-light excited down, red pixel and green pixel can be distinguished red-emitting and green glow, in conjunction with the blue light that directly sees through from white space, can obtain the RGB three primary colours, thereby under the modulation of liquid crystal, one-tenth full color capable of being combined shows.The present invention utilizes the autoluminescence characteristic of blue-ray LED excited fluorescent powder, not only can improve utilization ratio backlight and reach more than 2.5 times, has advantages such as the visual angle is wide simultaneously.Particularly, phosphor material powder is a kind of self-luminescent material, and then there is not the angle limitations problem in self-luminescent material, and its visual angle level can reach the level of existing CRT monitor.Blue-ray LED excited fluorescent powder luminescence efficiency is higher, use blue-light excited red light fluorescent powder and green light fluorescent powder, its luminescence efficiency can reach more than 70%, be existing more than 2.5 times of color film display packing light utilization ratio, the present invention directly sees through the blue light that backlight sends by form the white space as blue pixel on substrate, and the service efficiency of bias light is reached 100%, not only can save 1/3 resin material, and further reduce display device energy consumption and cost.The area ratio of red pixel of the present invention, green pixel and blue pixel is 27～33: 54～66: 6～8, can improve the tone of image to greatest extent.
Color membrane substrates of the present invention can adopt aforementioned color membrane substrates manufacture method of the present invention to be prepared from, and preparation process describes in detail in aforementioned color membrane substrates manufacture method embodiment, repeats no more.
It should be noted that at last: above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (6)
1. a color membrane substrates manufacture method is characterized in that, comprising:
Step 1, on substrate, form black matrix, red pixel, green pixel and blue pixel figure, described blue pixel is directly to see through blue white space figure backlight, contain the red light fluorescent powder that blue-ray LED excites in the described red pixel, contain the green emitting phosphor that blue-ray LED excites in the green pixel; Described red pixel, green pixel and blue pixel be shaped as nested combination of shapes, L shaped green pixel is positioned at the left side, L shaped red pixel is positioned at the right side, and is oppositely arranged with green pixel, and the blue pixel of area minimum is nested between red pixel and the green pixel; The area ratio of described red pixel, green pixel and blue pixel is 27～33: 54～66: 6～8;
Step 2, on the substrate of completing steps 1, make the levelling protective seam, and make surfacingization;
Step 3, on the substrate of completing steps 2, form transparency electrode.
2. color membrane substrates manufacture method according to claim 1 is characterized in that, the area ratio of described red pixel, green pixel and blue pixel is 30: 60: 7.
3. color membrane substrates manufacture method according to claim 1 and 2 is characterized in that, described step 1 specifically comprises:
Step 11, on substrate the black matrix film of deposition one deck, forms on substrate by mask process and to deceive the matrix figure;
Step 12, on the substrate of completing steps 11, prepare red pixel figure and green pixel figure successively, and form a white space figure as blue pixel.
4. color membrane substrates manufacture method according to claim 1 and 2 is characterized in that, described step 1 specifically comprises:
Step 21, on substrate, prepare red pixel figure and green pixel figure successively, and form a white space figure as blue pixel;
Step 22, on the substrate of completing steps 21 the black matrix film of deposition one deck, forms on substrate by mask process and to deceive the matrix figure.
5. color membrane substrates, comprise substrate, be formed with black matrix, red pixel, green pixel and blue pixel on the described substrate, contain the red light fluorescent powder that blue-ray LED excites in the described red pixel, contain the green emitting phosphor that blue-ray LED excites in the described green pixel, described blue pixel is directly to see through blue white space figure backlight; It is characterized in that, described red pixel, green pixel and blue pixel be shaped as nested combination of shapes, L shaped green pixel is positioned at the left side, L shaped red pixel is positioned at the right side, and be oppositely arranged with green pixel, the blue pixel of area minimum is nested between red pixel and the green pixel; The area ratio of described red pixel, green pixel and blue pixel is 27～33: 54～66: 6～8.
6. color membrane substrates according to claim 5 is characterized in that, the area ratio of described red pixel, green pixel and blue pixel is 30: 60: 7.
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| CN102033643B (en) | 2009-09-30 | 2013-03-06 | 北京京东方光电科技有限公司 | Touch screen and manufacturing method thereof |
| CN103091895B (en) | 2013-01-22 | 2015-12-09 | 北京京东方光电科技有限公司 | A kind of display device and preparation method |
| CN103676303B (en) * | 2013-12-31 | 2015-12-30 | 京东方科技集团股份有限公司 | Color membrane substrates and preparation method thereof, display device |
| US10545378B2 (en) * | 2015-02-04 | 2020-01-28 | Merck Patent Gmbh | Electro-optical switching element and display device |
| CN105487280A (en) | 2016-01-20 | 2016-04-13 | 京东方科技集团股份有限公司 | Color film substrate and production method thereof |
| CN105892153A (en) * | 2016-06-29 | 2016-08-24 | 京东方科技集团股份有限公司 | Pixel unit structure, colour film substrate, display device and display method |
| US10825839B2 (en) * | 2016-12-02 | 2020-11-03 | Innolux Corporation | Touch display device |
| CN107229155A (en) * | 2017-07-31 | 2017-10-03 | 深圳市华星光电技术有限公司 | A kind of color membrane substrates and display device |
| CN110865477A (en) * | 2018-08-28 | 2020-03-06 | 青岛海信电器股份有限公司 | Display panel and display device |
| CN109085717A (en) * | 2018-09-25 | 2018-12-25 | 上海中航光电子有限公司 | Display panel and display device |
| CN111338119B (en) * | 2018-12-19 | 2023-01-03 | 上海仪电显示材料有限公司 | Color filter substrate and chromaticity measuring method |
| CN113257851A (en) * | 2020-02-10 | 2021-08-13 | 群创光电股份有限公司 | Display device |
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