CN104851901A - High resolution OLED display device and making method thereof - Google Patents
High resolution OLED display device and making method thereof Download PDFInfo
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Abstract
The invention discloses a high resolution OLED display device and a making method thereof; the display device comprises a plurality of pixels; each pixel comprises a plurality of sub-pixels; the sub-pixels are partially overlapped so as to form intermediate color sub-pixels; the making method comprises a step of using a mask layer to evaporate the sub-pixels, so the sub-pixels can be partially overlapped, thus forming the intermediate color sub-pixels in the overlapping portion. The method overlaps the sub-pixels through evaporation, thus greatly reducing each pixel area, and greatly improving OLED resolution; in addition, the overlapping portion forms the intermediate color sub-pixels, so the intermediate color sub-pixels can directly display the intermediate color; one sub-pixel can display the color originally needing more sub-pixels in mixture, thus reducing power consumption.
Description
Technical field
The present invention relates to organic light emitting display technology, specifically, is a kind of high-resolution OLED display screen and manufacture method thereof.
Background technology
OLED(Organic Light Emitting Diode) device is active illuminating device.Compare present main flow flat panel display TFT – LCD(Thin Film Transistor-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.
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(mask plates 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 and a kind ofly can realizes high-resolution and OLED display low in energy consumption, and this OLED display manufacture method.
In order to solve the problems of the technologies described above, the invention provides a kind of high-resolution OLED display, comprise multiple pixel, each pixel is made up of multiple sub-pixel, has overlapping part between described sub-pixel, and the part of described overlap forms Neutral colour sub-pixel.
Further, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and have overlapping part between described first sub-pixel and the second sub-pixel, the part of this overlap forms the first Neutral colour sub-pixel; Have overlapping part between described second sub-pixel and the 3rd sub-pixel, the part of this overlap forms the second Neutral colour sub-pixel; Have overlapping part between described 3rd sub-pixel and the first sub-pixel of neighbor, the part of this overlap forms the 3rd Neutral colour sub-pixel.
Further, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, the arrangement in isosceles triangle between three sub-pixels, wherein the first sub-pixel and the second sub-pixel are set up in parallel and have overlapping part, and this lap forms the first Neutral colour sub-pixel; 3rd sub-pixel is arranged at the side of described first sub-pixel and the second sub-pixel, and with described first sub-pixel, the second sub-pixel and the first Neutral colour sub-pixel, there is overlapping part respectively, lap forms the 3rd Neutral colour sub-pixel, the second Neutral colour sub-pixel and the 4th Neutral colour sub-pixel respectively.
Further, described first sub-pixel, the second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green sub-pixels and blue subpixels.
Further, each sub-pixel and each Neutral colour sub-pixel are configured with drive circuit respectively.
Present invention also offers a kind of manufacture method of high-resolution OLED display, this OLED 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 to have overlapping part between sub-pixel, the part of described overlap forms Neutral colour 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 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, this lap forms the first Neutral colour sub-pixel;
Utilize mask plate evaporation the 3rd sub-pixel, and make a 3rd sub-pixel part overlapping with the second sub-pixel, make a 3rd sub-pixel part overlapping with the first sub-pixel of neighbor simultaneously; The lap of the 3rd sub-pixel and the second sub-pixel forms the second Neutral colour sub-pixel; The lap of the first sub-pixel of the 3rd sub-pixel and neighbor forms the 3rd Neutral colour 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, make the second sub-pixel part overlapping with the first sub-pixel, this lap forms the first Neutral colour sub-pixel;
Utilize mask plate at side evaporation the 3rd sub-pixel of described first sub-pixel and the second sub-pixel, and making a 3rd sub-pixel part overlapping with the first sub-pixel, the second sub-pixel and the first Neutral colour sub-pixel respectively, the lap of the 3rd sub-pixel and the first sub-pixel forms the 3rd Neutral colour sub-pixel; The lap of the 3rd sub-pixel and the second sub-pixel forms the second Neutral colour sub-pixel; The lap of the 3rd sub-pixel and the first Neutral colour sub-pixel forms the 4th Neutral colour sub-pixel.
Further, described first sub-pixel, the second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green sub-pixels and blue subpixels.
Further, it is characterized in that, after complete 3rd sub-pixel of evaporation, also comprise: be respectively each sub-pixel and each Neutral colour sub-pixel making drive circuit.
The present invention, 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.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.In addition, the present invention forms Neutral colour sub-pixel by making overlapping part, when showing Neutral colour, is directly shown by Neutral colour sub-pixel, can demonstrate the multiple sub-pixel of original needs and mix the color that could show, thus reduce power consumption by a sub-pixel.
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 first 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 organic light emitting display second embodiment of the present invention.
Fig. 4 B ~ Fig. 4 D 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 OLED display of the present invention, comprises multiple pixel, and each pixel is made up of multiple sub-pixel, has overlapping part between adjacent subpixels, and overlapping part forms Neutral colour sub-pixel.Each sub-pixel and each Neutral colour sub-pixel are configured with drive circuit respectively, thus drive each sub-pixel and Neutral colour sub-pixel respectively.
In the first embodiment shown in Fig. 3 A, 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, have overlapping part between first sub-pixel 31 and the second sub-pixel 32, the part of this overlap forms the first Neutral colour sub-pixel 35; Have overlapping part between second sub-pixel 32 and the 3rd sub-pixel 33, the part of this overlap forms the second Neutral colour sub-pixel 36; Have overlapping part between 3rd sub-pixel 33 and the first sub-pixel 34 of neighbor, the part of this overlap forms the 3rd Neutral colour sub-pixel 37.
In the present embodiment, first sub-pixel 31, second sub-pixel 32 and the 3rd sub-pixel 33 are respectively red, green and blue subpixels, then the first Neutral colour sub-pixel 35, second Neutral colour sub-pixel 36 and the 3rd Neutral colour sub-pixel 37 are respectively yellow sub-pixel, cyan sub-pixel and magenta subpixel.
Certainly, in other embodiments, be not limited to above-mentioned arrangement mode, random color is exchanged mutually.In addition, in other embodiments, the 3rd sub-pixel also can not be overlapping with the first sub-pixel of neighbor, and namely each pixel is all independently.
The present embodiment, by sub-pixel is overlapping, make the area shared by each pixel greatly reduce, thus can greatly improve organic light emitting display resolution.In addition, owing to there being Neutral colour sub-pixel, therefore can demonstrating the multiple sub-pixel of original needs by a sub-pixel and mix the color that could show, thus reduce power consumption.Such as, when needing to show yellow, the display of prior art needs to be realized by red sub-pixel and green sub-pixels luminous mixing simultaneously, and only needs yellow sub-pixel luminous in this enforcement embodiment.
In the second embodiment shown in Fig. 4 A, each pixel is made up of the first sub-pixel 41, second sub-pixel 42 and the 3rd sub-pixel 43, the arrangement in isosceles triangle between three sub-pixels, wherein the first sub-pixel 41 and the second sub-pixel 42 are set up in parallel and have overlapping part, and this lap forms the first Neutral colour sub-pixel 44, 3rd sub-pixel 43 is arranged at the side of the first sub-pixel 41 and the second sub-pixel 42, and respectively with the first sub-pixel 41, second sub-pixel 42 and the first Neutral colour sub-pixel 44 have overlapping part, the lap of the 3rd sub-pixel 43 and the first sub-pixel 41 forms the 3rd Neutral colour sub-pixel 46, the lap of the 3rd sub-pixel 43 and the second sub-pixel 42 forms the second Neutral colour sub-pixel 45, the lap of the 3rd sub-pixel 44 and the first Neutral colour sub-pixel 44 (is also the first sub-pixel 41, second sub-pixel 42 and the common overlapping part of the 3rd sub-pixel 43) form the 4th Neutral colour sub-pixel 47.
In the present embodiment, first sub-pixel 41, second sub-pixel 42 and the 3rd sub-pixel 43 are respectively red, green and blue subpixels, then the first Neutral colour sub-pixel 44, second Neutral colour sub-pixel 45 and the 3rd Neutral colour sub-pixel 46 are respectively yellow sub-pixel, cyan sub-pixel and magenta subpixel, and the 4th Neutral colour sub-pixel 47 is white sub-pixels.
As can be seen from Figure 4A, the area of the blue subpixels in the present embodiment is three times of red sub-pixel or green sub-pixels, relatively short by the life-span of blue light material under the prior art, therefore larger blue subpixels area can extend the bulk life time of OLED display, is a kind of preferred scheme.Certainly, in other embodiments, be not limited to above-mentioned arrangement mode, random color is exchanged mutually.In addition, in other embodiments, the first sub-pixel also can not be overlapping with the second sub-pixel.
The present embodiment, by sub-pixel is overlapping, make the area shared by each pixel greatly reduce, thus can greatly improve organic light emitting display resolution.In addition, owing to there being Neutral colour sub-pixel, therefore can demonstrating the multiple sub-pixel of original needs by a sub-pixel and mix the color that could show, thus reduce power consumption.Such as, when needing display white, the display of prior art needs to be realized by the luminous mixing simultaneously of red sub-pixel, green sub-pixels and blue subpixels, and only needs white sub-pixels luminous in this enforcement embodiment.
The manufacture method of high-resolution OLED display of the present invention comprises the step utilizing mask plate evaporation sub-pixel, and the manufacture method of high-resolution OLED display of the present invention is when utilizing mask plate evaporation sub-pixel, make that there is between sub-pixel overlapping part, and the part of overlap forms Neutral colour sub-pixel.
As shown in Fig. 3 B to Fig. 3 D, be the manufacture method of OLED display embodiment high-resolution shown in corresponding diagram 3A, in the present embodiment, manufacture method specifically comprises:
Utilize mask plate evaporation first sub-pixel 31, after completing as shown in Figure 3 B;
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 with the first sub-pixel 31, this lap forms the first Neutral colour sub-pixel 35, after completing as shown in Figure 3 C;
Utilize mask plate evaporation the 3rd sub-pixel 33, when evaporation the 3rd sub-pixel 33, make the opening of mask plate overlapping a part of respectively with the first sub-pixel 34 of the second sub-pixel 32 completed and neighbor, thus make the 3rd sub-pixel 33 have overlapping part with the first sub-pixel 34 of the second sub-pixel 32 and neighbor respectively, wherein, the lap of the 3rd sub-pixel 33 and the second sub-pixel 32 forms the second Neutral colour sub-pixel 36; 3rd sub-pixel 33 forms the 3rd Neutral colour sub-pixel 37 with the lap of the first sub-pixel 34 of neighbor, after completing as shown in Figure 3 D.In Fig. 3 D, dotted line represents the edge of the first sub-pixel 34 of neighbor (not shown).
As shown in Fig. 4 B to Fig. 4 C, for the manufacture method of the second embodiment shown in corresponding diagram 4A, 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 the present embodiment specifically comprises:
Utilize mask plate evaporation first sub-pixel 41, after completing as shown in Figure 4 B;
Utilize mask plate at the first sub-pixel 41 side evaporation second sub-pixel 42, when evaporation the second sub-pixel 42, make the opening of a mask plate part overlapping with the first sub-pixel 41 completed, thus make the second sub-pixel 42 have overlapping part with the first sub-pixel 41, this lap forms the first Neutral colour sub-pixel 44, after completing as shown in Figure 4 C;
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 with the first sub-pixel 41, second sub-pixel 42 and the first Neutral colour sub-pixel 44 respectively, wherein, the lap of the 3rd sub-pixel 43 and the first sub-pixel 41 forms the 3rd Neutral colour sub-pixel 46; The lap of the 3rd sub-pixel 43 and the second sub-pixel 42 forms the second Neutral colour sub-pixel 45; The lap of the 3rd sub-pixel 43 and the first Neutral colour sub-pixel 44 forms the 4th Neutral colour sub-pixel 47, after completing as shown in Figure 4 D.
The manufacture method of high-resolution OLED 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, with Mask minimal openings for 40um calculates, 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 1/3rd, between green sub-pixels and blue subpixels overlapping blue subpixels width 1/3rd, 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.
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 OLED 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, and the part of described overlap forms Neutral colour sub-pixel.
2. high-resolution OLED display according to claim 1, it is characterized in that, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, have overlapping part between described first sub-pixel and the second sub-pixel, the part of this overlap forms the first Neutral colour sub-pixel; Have overlapping part between described second sub-pixel and the 3rd sub-pixel, the part of this overlap forms the second Neutral colour sub-pixel; Have overlapping part between described 3rd sub-pixel and the first sub-pixel of neighbor, the part of this overlap forms the 3rd Neutral colour sub-pixel.
3. high-resolution OLED display according to claim 1, it is characterized in that, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, the arrangement in isosceles triangle between three sub-pixels, wherein the first sub-pixel and the second sub-pixel are set up in parallel and have overlapping part, and this lap forms the first Neutral colour sub-pixel; 3rd sub-pixel is arranged at the side of described first sub-pixel and the second sub-pixel, and with described first sub-pixel, the second sub-pixel and the first Neutral colour sub-pixel, there is overlapping part respectively, lap forms the 3rd Neutral colour sub-pixel, the second Neutral colour sub-pixel and the 4th Neutral colour sub-pixel respectively.
4. the high-resolution OLED display according to Claims 2 or 3, is characterized in that, described first sub-pixel, the second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green sub-pixels and blue subpixels.
5. according to the high-resolution OLED display in claim 1 ~ 3 described in any one, it is characterized in that, each sub-pixel and each Neutral colour sub-pixel are configured with drive circuit respectively.
6. the manufacture method of a high-resolution OLED display, this OLED 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 to have overlapping part between sub-pixel, the part of described overlap forms Neutral colour sub-pixel.
7. the manufacture method of high-resolution OLED display according to claim 6, 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, this lap forms the first Neutral colour sub-pixel;
Utilize mask plate evaporation the 3rd sub-pixel, and make a 3rd sub-pixel part overlapping with the second sub-pixel, make a 3rd sub-pixel part overlapping with the first sub-pixel of neighbor simultaneously; The lap of the 3rd sub-pixel and the second sub-pixel forms the second Neutral colour sub-pixel; The lap of the first sub-pixel of the 3rd sub-pixel and neighbor forms the 3rd Neutral colour sub-pixel.
8. the manufacture method of high-resolution OLED display according to claim 6, 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, make the second sub-pixel part overlapping with the first sub-pixel, this lap forms the first Neutral colour sub-pixel;
Utilize mask plate at side evaporation the 3rd sub-pixel of described first sub-pixel and the second sub-pixel, and making a 3rd sub-pixel part overlapping with the first sub-pixel, the second sub-pixel and the first Neutral colour sub-pixel respectively, the lap of the 3rd sub-pixel and the first sub-pixel forms the 3rd Neutral colour sub-pixel; The lap of the 3rd sub-pixel and the second sub-pixel forms the second Neutral colour sub-pixel; The lap of the 3rd sub-pixel and the first Neutral colour sub-pixel forms the 4th Neutral colour sub-pixel.
9. the manufacture method of the high-resolution OLED display according to claim 7 or 8, is characterized in that, described first sub-pixel, the second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green sub-pixels and blue subpixels.
10. according to the manufacture method of the high-resolution OLED display in claim 6 ~ 8 described in any one, it is characterized in that, after complete 3rd sub-pixel of evaporation, also comprise: be respectively each sub-pixel and each Neutral colour sub-pixel making drive circuit.
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| CN201410054516.4A CN104851901B (en) | 2014-02-18 | 2014-02-18 | A kind of high-resolution OLED display and its manufacture method |
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| CN104851901B (en) | 2018-03-30 |
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