CN104851901B - A kind of high-resolution OLED display and its manufacture method - Google Patents
A kind of high-resolution OLED display and its manufacture method Download PDFInfo
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- CN104851901B CN104851901B CN201410054516.4A CN201410054516A CN104851901B CN 104851901 B CN104851901 B CN 104851901B CN 201410054516 A CN201410054516 A CN 201410054516A CN 104851901 B CN104851901 B CN 104851901B
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Abstract
The invention discloses a kind of high-resolution OLED display and its manufacture method.The display device includes multiple pixels, and each pixel is made up of multiple sub-pixels, has overlapping part between the sub-pixel, and the overlapping part forms middle sub-pixels.The step of sub-pixel is deposited using mask plate in the manufacture method, it is characterised in that when sub-pixel is deposited using mask plate, make that there is overlapping part between sub-pixel, the overlapping part forms middle sub-pixels.The present invention passes through during evaporation that sub-pixel is overlapping so that the area shared by each pixel is substantially reduced, so as to greatly improve OLED resolution ratio.In addition, by the present invention in that overlapping part forms middle sub-pixels, when showing Neutral colour, directly shown by middle sub-pixels, the color for needing multiple sub-pixels mixing to show originally can be shown by a sub-pixel, so as to reduce power consumption.
Description
Technical field
The present invention relates to organic light emitting display technology, is a kind of high-resolution OLED display screen and its system specifically
Make method.
Background technology
OLED（Organic Light Emitting Diode）Device is active luminescent device.Compared to present main flow flat panel display TFT
–LCD（Thin Film Transistor-LCD）, OLED has the advantages that high-contrast, wide viewing angle, low-power consumption, volume are thinner,
It is expected to turn into the flat panel display of future generation after LCD, is most technology that attracted attention in current flat panel display
One of.
As shown in Figure 1A, each pixel is by RGB for traditional pixel arrangement mode（RGB）Forming, 11 be pixel in figure,
12 be a sub-pixel.Figure 1B, Fig. 1 C are two kinds of evaporation Mask corresponding to Figure 1A（Mask plate）, 13,15 be Mask in figure,
14th, 16 is are deposited Mask opening, can be slit（Slit）Or slot（Block plough groove type）Two kinds, each opening on Mask
Mouth can only correspond to the sub-pixel of one or one same color, be influenceed by Mask technological abilities, this opening can not be too small, so
Resolution ratio cannot be done greatly.When evaporation process realizes pixel arrangement, because the limit limitation of Mask openings, in theory pixel
Resolution ratio be difficult to be enhanced.
As shown in Figure 2 A, each pixel is by RGB sub-pixel groups into and sub-pixel is in " product " word for the best mode of industry at present
Type, 21 be pixel in figure, and 22 be sub-pixel.Fig. 2 B, Fig. 2 C correspond to B in Fig. 2A（Blueness）The evaporation Mask of sub-pixel, figure
2D corresponds to Fig. 2A R（It is red）Sub-pixel or G（Green）The length and width size phase of evaporation Mask, the Mask opening of sub-pixel
When in the half of a pixel length and width size.In Fig. 2 B, the opening 24 that the Mask 23 of B sub-pixels is deposited is slit types,
And in Fig. 2 C, the opening 26 that the Mask 25 of B sub-pixels is deposited is slot types；In Fig. 2 D, R sub-pixels or G sub-pixel is deposited
Mask27 opening 28, its length and width dimensions are still the length and width dimensions of a corresponding sub-pixel, but relative to the picture of traditional approach
Element arrangement, raising of the mode shown in Fig. 2A to resolution ratio has great progress, but is unable to reach more than 400 resolution ratio.
The content of the invention
High-resolution and OLED low in energy consumption display dress can be realized the technical problem to be solved in the present invention is to provide a kind of
Put, and this OLED display manufacture method.
In order to solve the above-mentioned technical problem, the invention provides a kind of high-resolution OLED display, including it is multiple
Pixel, each pixel are made up of multiple sub-pixels, have overlapping part between the sub-pixel, and the overlapping part is formed
Middle sub-pixels.
Further, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, the first sub- picture
There is overlapping part between element and the second sub-pixel, the overlapping part forms the first middle sub-pixels；Second son
There is overlapping part, the overlapping part forms the second middle sub-pixels between pixel and the 3rd sub-pixel；Described 3rd
There is overlapping part, the overlapping part forms the 3rd middle dice picture between sub-pixel and the first sub-pixel of adjacent pixel
Element.
Further, each pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, three sub-pixels it
Between in isosceles triangle arrange, wherein the first sub-pixel and the second sub-pixel are set up in parallel and have overlapping part, the lap
Form the first middle sub-pixels；3rd sub-pixel is arranged at the side of first sub-pixel and the second sub-pixel, and respectively
There is overlapping part with first sub-pixel, the second sub-pixel and the first middle sub-pixels, lap is formed respectively
3rd middle sub-pixels, the second middle sub-pixels and the 4th middle sub-pixels.
Further, first sub-pixel, the second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green
Pixel and blue subpixels.
Further, each sub-pixel and each middle sub-pixels are each configured with drive circuit.
Present invention also offers a kind of manufacture method of high-resolution OLED display, the OLED display includes
The step of multiple pixels, each pixel are made up of multiple sub-pixels, and sub-pixel is deposited using mask plate in the manufacture method,
When sub-pixel is deposited using mask plate, make that there is overlapping part between sub-pixel, the overlapping part forms middle dice
Pixel.
Further, the pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and three sub-pixels are in
Arranged in parallel, the preparation method specifically includes：
The first sub-pixel is deposited using mask plate；
The second sub-pixel is deposited using mask plate, and makes the second sub-pixel part overlapping with the first sub-pixel, this is overlapping
Part forms the first middle sub-pixels；
The 3rd sub-pixel is deposited using mask plate, and makes a 3rd sub-pixel part overlapping with the second sub-pixel, makes simultaneously
A 3rd sub-pixel part overlapping with the first sub-pixel of adjacent pixel；The lap shape of 3rd sub-pixel and the second sub-pixel
Into the second middle sub-pixels；The lap of first sub-pixel of the 3rd sub-pixel and adjacent pixel forms the 3rd middle dice
Pixel.
Further, the pixel is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and three sub-pixels are in
Isosceles triangle arranges, and the preparation method specifically includes：
The first sub-pixel is deposited using mask plate；
The second sub-pixel is deposited in the first sub-pixel side using mask plate, makes the second sub-pixel and the first sub-pixel
An overlapping part, the lap form the first middle sub-pixels；
The 3rd sub-pixel is deposited in the side of first sub-pixel and the second sub-pixel using mask plate, and makes the 3rd son
A pixel part overlapping with the first sub-pixel, the second sub-pixel and the first middle sub-pixels respectively, the 3rd sub-pixel and first
The lap of sub-pixel forms the 3rd middle sub-pixels；The lap of 3rd sub-pixel and the second sub-pixel forms second
Middle sub-pixels；3rd sub-pixel and the lap of the first middle sub-pixels form the 4th middle sub-pixels.
Further, first sub-pixel, the second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green
Pixel and blue subpixels.
Further, it is characterised in that after the 3rd sub-pixel has been deposited, in addition to：Respectively each sub-pixel and each
Middle sub-pixels make drive circuit.
The present invention passes through during evaporation that sub-pixel is overlapping so that and the area shared by each pixel is substantially reduced, so as to
Greatly improve OLED resolution ratio.During fabrication, the larger Mask of opening can be used, so that Mask's
In the case that opening can not reduce, it still can reduce the size of pixel, so as to reach high-resolution purpose.In addition, this hair
It is bright, when showing Neutral colour, directly to be shown by making overlapping part form middle sub-pixels by middle sub-pixels, by
One sub-pixel can show the color for needing multiple sub-pixel mixing to show originally, so as to reduce power consumption.
Brief description of the drawings
Figure 1A is the pixel arrangement schematic diagram of OLED in the prior art.
Figure 1B is a kind of Mask opening schematic diagrames of corresponding diagram 1A OLED.
Fig. 1 C are another Mask opening schematic diagrames of corresponding diagram 1A OLED.
Fig. 2A is the dot structure figure of isosceles triangle arrangement in the prior art.
The red sub-pixel or the Mask opening schematic diagrames of G green sub-pixels that Fig. 2 B are corresponding diagram 2A.
Fig. 2 C are a kind of opening schematic diagrames of Mask of corresponding diagram 2A blue subpixels.
Fig. 2 D are another opening schematic diagrames of Mask of corresponding diagram 2A blue subpixels.
Fig. 3 A are the pixel arrangement schematic diagram of the OLED first embodiment of the present invention.
Fig. 3 B ~ Fig. 3 D are the manufacturing process schematic diagram of corresponding diagram 3A OLED.
Fig. 4 A are the pixel arrangement schematic diagram of the OLED second embodiment of the present invention.
Fig. 4 B ~ Fig. 4 D are the manufacturing process schematic diagram of corresponding diagram 4A OLED.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
The high-resolution OLED display of the present invention, including multiple pixels, each pixel are made up of multiple sub-pixels,
There is overlapping part, overlapping part forms middle sub-pixels between adjacent subpixels.Each sub-pixel and each centre
Sub-pixels are each configured with drive circuit, so as to drive each sub-pixel and middle sub-pixels respectively.
In the first embodiment shown in Fig. 3 A, each pixel is by the first sub-pixel 31, the second sub-pixel 32 and the 3rd son
Pixel 33 is formed, and is in arranged in parallel, the first sub-pixel 31 between the first sub-pixel 31, the second sub-pixel 32 and the 3rd sub-pixel 33
And second have overlapping part between sub-pixel 32, the overlapping part forms the first middle sub-pixels 35；Second sub- picture
There is overlapping part between the sub-pixel 33 of element 32 and the 3rd, the overlapping part forms the second middle sub-pixels 36；3rd
There is overlapping part, the overlapping part forms the 3rd Neutral colour between sub-pixel 33 and the first sub-pixel 34 of adjacent pixel
Sub-pixel 37.
In the present embodiment, the first sub-pixel 31, the second sub-pixel 32 and the 3rd sub-pixel 33 be respectively red, green and
Blue subpixels, then the first middle sub-pixels 35, the second middle 36 and the 3rd middle sub-pixels 37 of sub-pixels are respectively
Yellow sub-pixel, cyan sub-pixel and magenta subpixel.
Certainly, in other embodiments, above-mentioned arrangement mode is not limited to, random color is mutually exchanged.In addition,
In other embodiments, the 3rd sub-pixel can not also be overlapping with the first sub-pixel of adjacent pixel, i.e., each pixel is independent
's.
The present embodiment passes through sub-pixel is overlapping so that the area shared by each pixel is substantially reduced, so as to significantly
Improve OLED resolution ratio.Further, since there are middle sub-pixels, therefore can be shown by a sub-pixel
Originally the color for needing multiple sub-pixel mixing to show, so as to reduce power consumption.Such as when needing to show yellow, existing skill
The display of art needs to be realized by the luminous mixing simultaneously of red sub-pixel and green sub-pixels, and is only needed in this implementation embodiment
Want yellow sub-pixel luminous.
In the second embodiment shown in Fig. 4 A, each pixel is by the first sub-pixel 41, the second sub-pixel 42 and the 3rd son
Pixel 43 is formed, and is arranged between three sub-pixels in isosceles triangle, wherein the first sub-pixel 41 and the second sub-pixel 42 are set up in parallel
And there is overlapping part, the lap forms the first middle sub-pixels 44；3rd sub-pixel 43 is arranged at the first sub- picture
Element 41 and second sub-pixel 42 side, and respectively with the first sub-pixel 41, the second sub-pixel 42 and the first middle sub-pixels
44 have lap the 3rd middle sub-pixels 46 of formation of overlapping part, the 3rd sub-pixel 43 and the first sub-pixel 41,
The lap of 3rd sub-pixel 43 and the second sub-pixel 42 forms the second middle sub-pixels 45, the 3rd sub-pixel 44 and first
The lap of middle sub-pixels 44（Namely first sub-pixel 41, the second sub-pixel 42 and the 3rd sub-pixel 43 are jointly overlapping
Part）Form the 4th middle sub-pixels 47.
In the present embodiment, the first sub-pixel 41, the second sub-pixel 42 and the 3rd sub-pixel 43 be respectively red, green and
Blue subpixels, then the first middle sub-pixels 44, the second middle 45 and the 3rd middle sub-pixels 46 of sub-pixels are respectively
Yellow sub-pixel, cyan sub-pixel and magenta subpixel, and the 4th middle sub-pixels 47 are white sub-pixels.
As can be seen from Figure 4A, the area of the blue subpixels in the present embodiment is red sub-pixel or green sub-pixels
Three times, the life-span by blue light material under the prior art is relatively short, therefore larger blue subpixels area can extend
The bulk life time of OLED display, it is a kind of preferable scheme.Certainly, in other embodiments, it is not limited to above-mentioned arrangement side
Formula, random color is mutually exchanged.In addition, in other embodiments, the first sub-pixel also can not be with the second sub-pixel weight
It is folded.
The present embodiment passes through sub-pixel is overlapping so that the area shared by each pixel is substantially reduced, so as to significantly
Improve OLED resolution ratio.Further, since there are middle sub-pixels, therefore can be shown by a sub-pixel
Originally the color for needing multiple sub-pixel mixing to show, so as to reduce power consumption.Such as when needing to show white, existing skill
The display of art needs to be realized by the luminous mixing simultaneously of red sub-pixel, green sub-pixels and blue subpixels, and this implementation
Only need white sub-pixels luminous in embodiment.
The step of sub-pixel is deposited using mask plate for the manufacture method of the high-resolution OLED display of the present invention
Suddenly, and the present invention high-resolution OLED display manufacture method be using mask plate evaporation sub-pixel when, make son
There is overlapping part between pixel, and overlapping part forms middle sub-pixels.
It is the manufacturer of high-resolution OLED display embodiment shown in corresponding diagram 3A as shown in Fig. 3 B to Fig. 3 D
Method, in the present embodiment, manufacture method specifically include：
Using mask plate be deposited the first sub-pixel 31, after the completion of as shown in Figure 3 B；
The second sub-pixel 32 is deposited using mask plate, when the second sub-pixel 32 be deposited, makes the opening and of mask plate
The 31 overlapping part of the first sub-pixel to complete, so that the second sub-pixel 32 has overlapping portion with the first sub-pixel 31
Point, the lap formed the first middle sub-pixels 35, after the completion of as shown in Figure 3 C；
The 3rd sub-pixel 33 is deposited using mask plate, when three sub-pixels 33 be deposited, makes the opening and of mask plate
The second sub-pixel 32 and the first sub-pixel 34 of adjacent pixel to complete distinguishes an overlapping part, so that the 3rd sub-pixel
33 have overlapping part with the first sub-pixel 34 of the second sub-pixel 32 and adjacent pixel respectively, wherein, the 3rd sub-pixel 33
The second middle sub-pixels 36 are formed with the lap of the second sub-pixel 32；First son of the 3rd sub-pixel 33 and adjacent pixel
The lap of pixel 34 forms the 3rd middle sub-pixels 37, after the completion of as shown in Figure 3 D.In Fig. 3 D, dotted line represents adjacent picture
Element（Not shown in figure）The first sub-pixel 34 edge.
It is the manufacture method of second embodiment shown in corresponding diagram 4A, in the present embodiment, pixel as shown in Fig. 4 B to Fig. 4 C
It is made up of the first sub-pixel 41, the second sub-pixel 42 and the 3rd sub-pixel 43, three sub-pixels arrange in isosceles triangle, the present embodiment
Manufacture method specifically include：
Using mask plate be deposited the first sub-pixel 41, after the completion of as shown in Figure 4 B；
The second sub-pixel 42 is deposited in the side of the first sub-pixel 41 using mask plate, when the second sub-pixel 42 is deposited, makes
The opening of mask plate and the 41 overlapping part of the first sub-pixel to have completed, so that the second sub-pixel 42 and the first son
Pixel 41 has an overlapping part, and the lap forms the first middle sub-pixels 44, after the completion of as shown in Figure 4 C；
The 3rd sub-pixel 43 is deposited in the side of the first sub-pixel 41 and the second sub-pixel 42 using mask plate, in evaporation the
During three sub-pixels 43, make the opening and the first sub-pixel 41 to have completed, the second sub-pixel 42 overlapping one of mask plate
Point, so that the 3rd sub-pixel 43 has with the first sub-pixel 41, the second sub-pixel 42 and the first middle sub-pixels 44 respectively
Overlapping part, wherein, the lap of the 3rd sub-pixel 43 and the first sub-pixel 41 forms the 3rd middle sub-pixels 46；The
The lap of three sub-pixels 43 and the second sub-pixel 42 forms the second middle sub-pixels 45；In 3rd sub-pixel 43 and first
Between sub-pixels 44 lap formed the 4th middle sub-pixels 47, after the completion of as shown in Figure 4 D.
The present invention high-resolution OLED display manufacture method, pass through it is during evaporation that sub-pixel is overlapping, even if
Mask opening can not reduce, and still can reduce the size of pixel, so as to reach high-resolution purpose.Specifically, with
Mask minimal openings calculate for 40um, and using the pixel arrangement mode of prior art shown in Figure 1A, the size of each pixel is at least
For 120um, with 1 inch（25400um）Divided by the size of each pixel, i.e. 25400um/120um, resolution ratio can be obtained and be up to
211PPI.And the pixel arrangement mode of the invention shown in Fig. 3 A is used, it is overlapping red between red sub-pixel and green sub-pixels
/ 3rd of sub-pixels width, the three of overlapping blue subpixels width between green sub-pixels and blue subpixels/
One, the minimum dimension of so each pixel is up to 80um, and resolution ratio is up to 318PPI.And if this hair shown in using Fig. 4 A
Bright pixel arrangement mode, the minimum dimension of pixel is up to 60um, and resolution ratio is up to 423PPI.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
Enclose not limited to this.The equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (8)
1. a kind of high-resolution OLED display, including multiple pixels, each pixel is by the first sub-pixel, the second sub-pixel
Formed with the 3rd sub-pixel, it is characterised in that each sub-pixel at least has between adjacent thereto sub-pixel
Overlapping part, the overlapping part form middle sub-pixels, each sub-pixel and each middle dice picture
Element is each configured with drive circuit.
2. high-resolution OLED display according to claim 1, it is characterised in that first sub-pixel and
There is overlapping part, the overlapping part forms the first middle sub-pixels between two sub-pixels；Second sub-pixel and
There is overlapping part, the overlapping part forms the second middle sub-pixels between 3rd sub-pixel；3rd sub-pixel
There is overlapping part between the first sub-pixel of adjacent pixel, the overlapping part forms the 3rd middle sub-pixels.
3. high-resolution OLED display according to claim 1, it is characterised in that first sub-pixel,
Arranged between two sub-pixels and the 3rd sub-pixel in isosceles triangle, wherein the first sub-pixel and the second sub-pixel are set up in parallel and had
Overlapping part, the lap form the first middle sub-pixels；3rd sub-pixel is arranged at first sub-pixel and
The side of two sub-pixels, and have respectively with first sub-pixel, the second sub-pixel and the first middle sub-pixels overlapping
Part, lap form the 3rd middle sub-pixels, the second middle sub-pixels and the 4th middle sub-pixels respectively.
4. the high-resolution OLED display according to Claims 2 or 3, it is characterised in that first sub-pixel,
Second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green sub-pixels and blue subpixels.
5. a kind of manufacture method of high-resolution OLED display, the OLED display includes multiple pixels, each picture
Element is made up of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, and sub- picture is deposited using mask plate in the manufacture method
The step of element, it is characterised in that when sub-pixel is deposited using mask plate, make each sub-pixel at least with adjacent thereto one
There is overlapping part, the overlapping part forms middle sub-pixels, after sub-pixel has been deposited, also wrapped between individual sub-pixel
Include respectively each sub-pixel and each middle sub-pixels make drive circuit.
6. the manufacture method of high-resolution OLED display according to claim 5, it is characterised in that described first
Sub-pixel, the second sub-pixel and the 3rd sub-pixel are in arranged in parallel, and the preparation method specifically includes：
The first sub-pixel is deposited using mask plate；
The second sub-pixel is deposited using mask plate, and makes the second sub-pixel part overlapping with the first sub-pixel, the lap
Form the first middle sub-pixels；
The 3rd sub-pixel is deposited using mask plate, and makes a 3rd sub-pixel part overlapping with the second sub-pixel, while makes the 3rd
A sub-pixel part overlapping with the first sub-pixel of adjacent pixel；The lap of 3rd sub-pixel and the second sub-pixel forms the
Two middle sub-pixels；The lap of first sub-pixel of the 3rd sub-pixel and adjacent pixel forms the 3rd middle dice picture
Element.
7. the manufacture method of high-resolution OLED display according to claim 5, it is characterised in that described first
Sub-pixel, the second sub-pixel and the 3rd sub-pixel arrange in isosceles triangle, and the preparation method specifically includes：
The first sub-pixel is deposited using mask plate；
The second sub-pixel is deposited in the first sub-pixel side using mask plate, makes the second sub-pixel overlapping with the first sub-pixel
A part, the lap form the first middle sub-pixels；
The 3rd sub-pixel is deposited in the side of first sub-pixel and the second sub-pixel using mask plate, and makes the 3rd sub-pixel
A part overlapping with the first sub-pixel, the second sub-pixel and the first middle sub-pixels respectively, the 3rd sub-pixel and the first sub- picture
The lap of element forms the 3rd middle sub-pixels；The lap of 3rd sub-pixel and the second sub-pixel is formed among second
Sub-pixels；3rd sub-pixel and the lap of the first middle sub-pixels form the 4th middle sub-pixels.
8. the manufacture method of the high-resolution OLED display according to claim 6 or 7, it is characterised 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.
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| CN105655504B (en) * | 2016-04-11 | 2017-06-16 | 京东方科技集团股份有限公司 | A kind of organic electroluminescence device and preparation method thereof and display panel |
| CN108807460B (en) | 2017-04-28 | 2019-08-23 | 昆山国显光电有限公司 | Dot structure driving method |
| CN107164726B (en) * | 2017-07-13 | 2019-07-09 | 京东方科技集团股份有限公司 | A kind of OLED vapor deposition mask plate and preparation method |
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| CN1550568A (en) * | 2003-04-25 | 2004-12-01 | ��ʽ����뵼����Դ�о��� | Manufacturing devices and lighting devices |
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