CN104637972A - High-resolution organic light emitting display and manufacturing method thereof - Google Patents
High-resolution organic light emitting display and manufacturing method thereof Download PDFInfo
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- CN104637972A CN104637972A CN201310550036.2A CN201310550036A CN104637972A CN 104637972 A CN104637972 A CN 104637972A CN 201310550036 A CN201310550036 A CN 201310550036A CN 104637972 A CN104637972 A CN 104637972A
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Abstract
The invention discloses a high-resolution organic light emitting display and a manufacturing method thereof. The organic light emitting display comprises a plurality of pixels, and each pixel is composed of a plurality of sub pixels. The organic light emitting display is characterized in that the sub pixels have overlapping portions. The manufacturing method comprises a step of evaporating the sub pixels with a mask plate, wherein the sub pixels are overlapped when evaporated with the mask plate. According to the high-resolution organic light emitting display and the manufacturing method thereof of the invention, the sub pixels are overlapped during evaporation, so that the area occupied by each pixel is greatly reduced, and the resolution of the organic light emitting display is greatly improved. During manufacture, a mask with a large opening can be used. Therefore, the size of the pixels can still be reduced under the condition that the opening of the mask cannot be reduced, thus achieving the purpose of high resolution.
Description
Technical field
The present invention relates to organic light emitting display technology, specifically, is a kind of high-resolution organic light emitting display and manufacture method thereof.
Background technology
Organic light emitting diodde desplay device (OLED) is active illuminating device.Compare present main flow flat panel display Thin Film Transistor-LCD (TFT-LCD), OLED has the advantages such as high-contrast, wide viewing angle, low-power consumption, volume be thinner, being expected to the flat panel display of future generation become after LCD, is one of the maximum technology that receives publicity in current flat panel display.
In order to improve display resolution and when Pixel Dimensions is reduced, Mask(mask plate for evaporation RGB tri-look material) opening also can diminish, by impact prepared by Mask technique, this opening is conditional, therefore, when reaching certain limit, prior art cannot improve the resolution of display further.
As shown in Figure 1A, each pixel is by RGB(RGB for traditional pixel arrangement mode) form, in figure, 11 is pixel, and 12 is a sub-pixel.Figure 1B, Fig. 1 C is the two kinds of evaporation Mask corresponding to Figure 1A, in figure, 13,15 is Mask, 14,16 is the opening of evaporation Mask, can be slit(slit) or the block plough groove type of slot() two kinds, each opening on Mask can only the sub-pixel of corresponding one or one same color, by the impact of Mask technological ability, this opening can not be too small, and such resolution just can not be done greatly.When evaporation process realizes pixel arrangement, because the limit restriction of Mask opening, the resolution of pixel is difficult to be enhanced in theory.
As shown in Figure 2 A, each pixel is made up of RGB sub-pixel the best mode of current industry, and sub-pixel is in " product " font, and in figure, 21 is pixel, and 22 is sub-pixel.Fig. 2 B, Fig. 2 C are that to correspond to B(in Fig. 2 A blue) the evaporation Mask of sub-pixel, Fig. 2 D is that to correspond to the R(of Fig. 2 A red) sub-pixel or G(green) the evaporation Mask of sub-pixel, the length and width size of Mask opening is equivalent to 1/2nd of a pixel length and width size.In Fig. 2 B, the opening 24 of the Mask 23 of evaporation B sub-pixel is slit type, and in Fig. 2 C, the opening 26 of the Mask 25 of evaporation B sub-pixel is slot type; In Fig. 2 D, the opening 28 of the Mask27 of evaporation R sub-pixel or G sub-pixel, its length and width size remains the length and width size of a corresponding sub-pixel, but relative to the pixel arrangement of traditional approach, the raising of mode shown in Fig. 2 A to resolution has had very much progress, but cannot reach the resolution of more than 400.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high-resolution organic light emitting display and manufacture method thereof.
In order to solve the problems of the technologies described above, the invention provides a kind of high-resolution organic light emitting display, comprise multiple pixel, each pixel is made up of multiple sub-pixel, has overlapping part between described sub-pixel.
Further, overlapping between described sub-pixel region is not luminous.
Further, region overlapping between described sub-pixel adopts black matrix" to block, and makes the region of described overlap not luminous; Or only arranging anode under the Non-overlapping Domain of pixel makes the region of described overlap not luminous.。
Further, each pixel is made up of red sub-pixel, green sub-pixels and blue subpixels, described red sub-pixel, between green sub-pixels and blue subpixels in arranged in parallel, there is between adjacent sub-pixel overlapping part.
Further, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, arrange in isosceles triangle between three sub-pixels, wherein the first sub-pixel and the second sub-pixel are set up in parallel, 3rd sub-pixel is arranged at the side of described first sub-pixel and the second sub-pixel, and has overlapping part with described first sub-pixel and the second sub-pixel respectively.
Present invention also offers a kind of manufacture method of high-resolution organic light emitting display, this organic light emitting display comprises multiple pixel, each pixel is made up of multiple sub-pixel, described manufacture method comprises the step utilizing mask plate evaporation sub-pixel, when utilizing mask plate evaporation sub-pixel, make that there is between sub-pixel overlapping part.
Further, overlapping between described sub-pixel region is not luminous.
Further, described utilize the step of mask plate evaporation sub-pixel after, also comprise and utilize black matrix" to block region overlapping between described sub-pixel, make the overlapping non-luminous step in region; Or comprise and anode is only set under the Non-overlapping Domain of pixel makes the non-luminous step in the region of described overlap.
Further, described pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and three sub-pixels are arranged in parallel, and described manufacture method specifically comprises:
Utilize mask plate evaporation first sub-pixel;
Utilize mask plate evaporation second sub-pixel, and make the second sub-pixel part overlapping with the first sub-pixel;
Utilize mask plate evaporation the 3rd sub-pixel, and make a 3rd sub-pixel part overlapping with the second sub-pixel.
Further, described pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and three sub-pixels are isosceles triangle arrangement, and described manufacture method specifically comprises:
Utilize mask plate evaporation first sub-pixel;
Utilize mask plate at described first sub-pixel side evaporation second sub-pixel, the second sub-pixel and the first sub-pixel are arranged in juxtaposition;
Utilize mask plate at side evaporation the 3rd sub-pixel of described first sub-pixel and the second sub-pixel, and make a 3rd sub-pixel part overlapping with the first sub-pixel and the second sub-pixel respectively.
High-resolution organic light emitting display of the present invention and manufacture method thereof, by sub-pixel is overlapping during evaporation, make the area shared by each pixel greatly reduce, thus can greatly improve organic light emitting display resolution.And during fabrication, the Mask that opening is larger can be used, thus make when the opening of Mask cannot reduce, still can reduce the size of pixel, thus reach high-resolution object.
Accompanying drawing explanation
Figure 1A is the pixel arrangement schematic diagram of organic light emitting display in prior art.
Figure 1B is a kind of Mask opening schematic diagram of the organic light emitting display of corresponding Figure 1A.
Fig. 1 C is the another kind of Mask opening schematic diagram of the organic light emitting display of corresponding Figure 1A.
Fig. 2 A is the dot structure figure of isosceles triangle arrangement in prior art.
Fig. 2 B is the red sub-pixel of corresponding diagram 2A or the Mask opening schematic diagram of G green sub-pixels.
Fig. 2 C is Mask opening schematic diagram of the blue subpixels of corresponding diagram 2A.
Fig. 2 D is the another kind of opening schematic diagram of Mask of the blue subpixels of corresponding diagram 2A.
Fig. 3 A is the pixel arrangement schematic diagram of organic light emitting display one embodiment of the present invention.
Fig. 3 B ~ Fig. 3 D is the manufacture process schematic diagram of the organic light emitting display of corresponding diagram 3A.
Fig. 4 A is the pixel arrangement schematic diagram of another embodiment of organic light emitting display of the present invention.
Fig. 4 B ~ Fig. 4 C is the manufacture process schematic diagram of the organic light emitting display of corresponding diagram 4A.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can better understand the present invention and can be implemented, but illustrated embodiment is not as a limitation of the invention to make those skilled in the art.
High-resolution organic light emitting display of the present invention, comprises multiple pixel, and each pixel is made up of multiple sub-pixel, as shown in Fig. 3 A or Fig. 4 A, has overlapping part between each sub-pixel.Region overlapping between sub-pixel is not luminous or adopt black matrix" to block, thus makes the luminescence of each sub-pixel can not produce colour mixture, to ensure display effect because overlapping region produces interference mutually.Make the non-luminous mode in overlapping region can have multiple, such as, region by being positioned at the anode below luminous zone realizes, and also namely when making display, only needing luminous region to make anode, and making anode in overlapping region; Or using the Pillar(pillar of surface) layer blocks realization to overlapping region.And the mode adopting black matrix" to block also has multiple, such as can cover one deck black material in the sub-pixel overlapping region on substrate with evaporation or alternate manner, namely the black material of each pixel on monoblock substrate forms matrix; Or also black material can be fabricated in the package board of display unit.
In Fig. 3 A illustrated embodiment, each pixel is made up of the first sub-pixel 31, second sub-pixel 32 and the 3rd sub-pixel 33, in arranged in parallel between first sub-pixel 31, second sub-pixel 32 and the 3rd sub-pixel 33, there is between adjacent sub-pixel overlapping part 34.Wherein, the first sub-pixel 31, second sub-pixel 32 and the 3rd sub-pixel 33 are respectively red sub-pixel, green sub-pixels and blue subpixels, but do not limit corresponding relation.Also namely the sub-pixel of these three kinds of colors arrange by any way can.
In Fig. 4 A illustrated embodiment, each pixel is made up of the first sub-pixel 41, second sub-pixel 42 and the 3rd sub-pixel 43, arrange in isosceles triangle between three sub-pixels, wherein the first sub-pixel 41 and the second sub-pixel 42 are set up in parallel, 3rd sub-pixel 43 is arranged at the side of the first sub-pixel 41 and the second sub-pixel 42, and has overlapping part 44 with the first sub-pixel 41 and the second sub-pixel 42 respectively.Wherein, the first sub-pixel 41, second sub-pixel 42 and the 3rd sub-pixel 43 are respectively red sub-pixel, green sub-pixels and blue subpixels, but do not limit corresponding relation.Also namely the sub-pixel of these three kinds of colors arrange by any way can.
The manufacture method of organic light emitting display comprises the step utilizing mask plate evaporation sub-pixel, and the manufacture method of high-resolution organic light emitting display of the present invention is when utilizing mask plate evaporation sub-pixel, makes to have overlapping part between sub-pixel.Equally, overlapping between sub-pixel region is not luminous.Such as, can, after the complete sub-pixel of evaporation, black matrix" be utilized to block region overlapping between sub-pixel; Namely or only under the Non-overlapping Domain of pixel, (under also sub-pixel needs luminous region) arranges anode and makes the region of described overlap not luminous, to avoid producing mutual interference because of lap between sub-pixel.
The manufacture method of the high-resolution organic light emitting display as shown in Fig. 3 B to Fig. 3 D, in the present embodiment, pixel is made up of the first sub-pixel 31, second sub-pixel 32 and the 3rd sub-pixel 33, three sub-pixels are arranged in parallel, and the manufacture method of high-resolution organic light emitting display of the present invention specifically comprises:
Utilize mask plate evaporation first sub-pixel 31;
Utilize mask plate evaporation second sub-pixel 32, when evaporation the second sub-pixel 32, make the opening of a mask plate part overlapping with the first sub-pixel 31 completed, thus make the second sub-pixel 32 have overlapping part 35 with the first sub-pixel 31;
Utilize mask plate evaporation the 3rd sub-pixel 33, when evaporation the 3rd sub-pixel 33, make the opening of a mask plate part overlapping with the second sub-pixel 32 completed, thus make the 3rd sub-pixel 33 have overlapping part 36 with the second sub-pixel 32.
After the complete above-mentioned pixel of evaporation, one of following step is adopted to make part overlapping between sub-pixel not luminous:
1) black matrix" is utilized to block region overlapping between described sub-pixel;
2) only anode is set under the Non-overlapping Domain of pixel, and does not make anode in overlapping region.
Wherein, adopt the mode that black matrix" blocks to have multiple, such as can cover one deck black material in the sub-pixel overlapping region on substrate with evaporation or alternate manner, namely the black material of each pixel on monoblock substrate forms matrix; Or also black material can be fabricated in the package board of display unit.
The manufacture method of the high-resolution organic light emitting display as shown in Fig. 4 B to Fig. 4 C, in the present embodiment, pixel is made up of the first sub-pixel 41, second sub-pixel 42 and the 3rd sub-pixel 43, three sub-pixels are isosceles triangle arrangement, and the manufacture method of high-resolution organic light emitting display of the present invention specifically comprises:
Utilize mask plate evaporation first sub-pixel 41;
Utilize mask plate at the first sub-pixel 41 side evaporation second sub-pixel 42, the second sub-pixel 42 and the first sub-pixel 41 are arranged in juxtaposition;
Utilize mask plate at side evaporation the 3rd sub-pixel 43 of the first sub-pixel 41 and the second sub-pixel 42, when evaporation the 3rd sub-pixel 43, make the opening of a mask plate part overlapping with the first sub-pixel 41, second sub-pixel 42 completed, thus make the 3rd sub-pixel 43 have overlapping part 44 with the first sub-pixel 41 and the second sub-pixel 42 respectively.
The manufacture method of high-resolution organic light emitting display of the present invention, by sub-pixel is overlapping during evaporation, even if the opening of Mask cannot reduce, still can reduce the size of pixel, thus reach high-resolution object.Specifically, be that 40um calculates according to Mask minimal openings, adopt the pixel arrangement mode of prior art shown in Figure 1A, the size of each pixel is at least 120um, by 1 inch (25400um) size divided by each pixel, i.e. 25400um/120um, can obtain resolution and mostly be 211PPI most.And adopt the pixel arrangement mode of the present invention shown in Fig. 3 A, between red sub-pixel and green sub-pixels overlapping red sub-pixel width 1/2nd, between green sub-pixels and blue subpixels overlapping blue subpixels width 1/2nd, the minimum dimension of each like this pixel can reach 80um, and resolution can reach 318PPI.And if adopt the pixel arrangement mode of the present invention shown in Fig. 4 A, the minimum dimension of pixel can reach 60um, and resolution can reach 423PPI.
In addition, according to the principle of luminosity of organic light emitting display, the sub-pixel of organic light emitting display is not whole luminescences, although therefore the part of sub-pixel overlap of the present invention is not luminous, can not affect overall display effect.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. a high-resolution organic light emitting display, comprises multiple pixel, and each pixel is made up of multiple sub-pixel, it is characterized in that, has overlapping part between described sub-pixel.
2. high-resolution organic light emitting display according to claim 1, is characterized in that, region overlapping between described sub-pixel is not luminous.
3. high-resolution organic light emitting display according to claim 2, is characterized in that, region overlapping between described sub-pixel adopts black matrix" to block, and makes the region of described overlap not luminous; Or only arranging anode under the Non-overlapping Domain of pixel makes the region of described overlap not luminous.
4. according to the high-resolution organic light emitting display in claim 1 ~ 3 described in any one, it is characterized in that, each pixel is made up of red sub-pixel, green sub-pixels and blue subpixels, described red sub-pixel, between green sub-pixels and blue subpixels in arranged in parallel, there is between adjacent sub-pixel overlapping part.
5. according to the high-resolution organic light emitting display in claim 1 ~ 3 described in any one, it is characterized in that, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, arrange in isosceles triangle between three sub-pixels, wherein the first sub-pixel and the second sub-pixel are set up in parallel, 3rd sub-pixel is arranged at the side of described first sub-pixel and the second sub-pixel, and has overlapping part with described first sub-pixel and the second sub-pixel respectively.
6. the manufacture method of a high-resolution organic light emitting display, this organic light emitting display comprises multiple pixel, each pixel is made up of multiple sub-pixel, described manufacture method comprises the step utilizing mask plate evaporation sub-pixel, it is characterized in that, when utilizing mask plate evaporation sub-pixel, make that there is between sub-pixel overlapping part.
7. the manufacture method of high-resolution organic light emitting display according to claim 6, is characterized in that, region overlapping between described sub-pixel is not luminous.
8. the manufacture method of high-resolution organic light emitting display according to claim 7, it is characterized in that, described utilize the step of mask plate evaporation sub-pixel after, also comprise and utilize black matrix" to block region overlapping between described sub-pixel, make the overlapping non-luminous step in region; Or comprise and anode is only set under the Non-overlapping Domain of pixel makes the non-luminous step in the region of described overlap.
9. according to the manufacture method of the high-resolution organic light emitting display in claim 6 ~ 8 described in any one, it is characterized in that, described pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and three sub-pixels are arranged in parallel, and described manufacture method specifically comprises:
Utilize mask plate evaporation first sub-pixel;
Utilize mask plate evaporation second sub-pixel, and make the second sub-pixel part overlapping with the first sub-pixel;
Utilize mask plate evaporation the 3rd sub-pixel, and make a 3rd sub-pixel part overlapping with the second sub-pixel.
10. according to the manufacture method of the high-resolution organic light emitting display in claim 6 ~ 8 described in any one, it is characterized in that, described pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and three sub-pixels are isosceles triangle arrangement, and described manufacture method specifically comprises:
Utilize mask plate evaporation first sub-pixel;
Utilize mask plate at described first sub-pixel side evaporation second sub-pixel, the second sub-pixel and the first sub-pixel are arranged in juxtaposition;
Utilize mask plate at side evaporation the 3rd sub-pixel of described first sub-pixel and the second sub-pixel, and make a 3rd sub-pixel part overlapping with the first sub-pixel and the second sub-pixel respectively.
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CN107164726A (en) * | 2017-07-13 | 2017-09-15 | 京东方科技集团股份有限公司 | A kind of OLED evaporations mask plate and preparation method |
CN110796961A (en) * | 2018-07-31 | 2020-02-14 | 乐金显示有限公司 | Light emitting display device |
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CN107068714A (en) * | 2017-01-20 | 2017-08-18 | 成都晶砂科技有限公司 | A kind of OLED pixel arrangement architecture and display device |
CN106816461A (en) * | 2017-03-05 | 2017-06-09 | 成都爱可信科技有限公司 | A kind of displayer part and its manufacture method |
CN107164726A (en) * | 2017-07-13 | 2017-09-15 | 京东方科技集团股份有限公司 | A kind of OLED evaporations mask plate and preparation method |
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US10867543B2 (en) | 2019-04-09 | 2020-12-15 | Facebook Technologies, Llc | Resolution reduction of color channels of display devices |
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Application publication date: 20150520 |