CN104659064A - Organic light emitting diode display pixel array structure and display device - Google Patents
Organic light emitting diode display pixel array structure and display device Download PDFInfo
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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Abstract
The invention discloses an organic light emitting diode display pixel array structure and a display device. The pixel array structure comprises a plurality of first pixels and/or second pixels arrayed tightly; the first pixels and the second pixels are rectangles of the same size; each first pixel as well as each second pixel comprises a first sub-pixel and a second sub-pixel which are arranged at the two ends of one diagonal line of the corresponding rectangle, and a third sub-pixel arranged on the other diagonal line. According to the invention, the pixel aperture ratio is improved; the array structure of the first sub-pixels, the second sub-pixels and the third sub-pixels is tighter; color is displayed more uniformly; the limitation of an FMM manufacture process and a coating technology is broken through; OLED display PPI value and resolution are efficiently improved; the OLED displayed image quality and effect are improved.
Description
Technical field
The present invention relates to technical field of manufacturing semiconductors, particularly a kind of organic light emitting diode display pixel arrangement structure and display unit.
Background technology
In recent years, Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) because it possesses self-luminous, do not need backlight, and contrast is high, thickness is thin, visual angle is wide, reaction speed is fast, can be used for flexibility panel, serviceability temperature scope wide, the characteristic of structure and the excellence such as processing procedure is simpler, is considered to the emerging application technology of follow-on flat-panel screens.Organic light emitting display technology is made up of very thin coating of organic material and glass substrate, when have electric charge by time, these organic materials will be luminous.Relative to LCD display, OLED has more power saving, thinner, and the advantage that visual angle is wide, this is that LCD is incomparable.OLED is divided into active OLED(AMOLED according to the difference of type of drive) and passive type OLED(PMOLED).Relative to PMOLED, AMOLED because each pixel has independently pixel-driving circuit, so can large scale be realized, high-resolution, comparatively power saving, the features such as the panel life-span is longer.
In OLED true color method, red (R), green (G), blue (B) three primary colors pixel juxtaposition (side-by-side Pixelation) develop the most ripe technology.Usually, R, G, B tri-kinds of sub-pixs planar replace repeated arrangement, and adjacent three sub-pixs form the pixel cell that can be launched any color, namely basic elementary area, and pixel cell planar repeated arrangement forms display screen.The size of pixel is less, the resolution of display, or PPI(Pixels Per Inch, the pixel that per inch has) higher, the more clear exquisiteness of picture of display.
The principal element affecting high PPI value is exactly the high-fineness of mask plate, because mask plate (Mask) aperture area has specification lower limit, and in order to avoid manufacturing process is by the impact of tolerance (tolerance), need preset clearance (gap) between the opening of neighbor and cause picture element density little, causing PPI to be increased dramatically.
Existing OLED pixel arrangement structure, is made up of the pixel of a plurality of repeated arrangement, and a pixel comprises R, G, B tri-sub-pixs, and wherein R, G, B tri-sub-pixs are generally the arrangement mode of adjacent rule.But existing RGB pixel arrangement structure is difficult to meet the high-res of electronic equipment to display screen, the requirement of high brightness, when realizing identical resolution; Another kind of existing OLED pixel arrangement structure is then arranged by the mode of shared sub-pix, but the R/G/B ratio of the pixel that this arrangement mode is formed is 1:1:2, the display effect of display can be affected, meeting more complicated on OLED processing procedure, also the evaporation of organic material is unfavorable for, easy colour mixture.
Summary of the invention
The present invention proposes a kind of organic light emitting diode display pixel arrangement structure and display unit, can break through the restriction of FMM manufacture craft and coating process, effectively promotes PPI value and the resolution of OLED display, improves picture quality and the effect of OLED display.
For achieving the above object, the present invention adopts following technical scheme:
A kind of organic light emitting diode display pixel arrangement structure, comprise compact arranged multiple first pixel and/or the second pixel, rectangle identical sized by each first pixel and the second pixel, each first pixel and the second pixel comprise the first sub-pix, the second sub-pix and the 3rd sub-pix that arranges along another diagonal of this rectangle that are divided into this rectangle a pair linea angulata two ends.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, each the first adjacent pixel and the second pixel form a base pixel unit, in the horizontal direction and the tight repeated arrangement of vertical direction, the second sub-pix of described first pixel is disposed adjacent with the second sub-pix of the second pixel described base pixel unit.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, described organic light emitting diode display pixel arrangement structure comprises the first pixel, the second pixel, the 3rd pixel and the 4th pixel, wherein, described 3rd pixel is turned over turnback by the first pixel relative level axis and is formed, and described 4th pixel is turned over turnback by the first pixel relative level axis in the second pixel and formed; Each first adjacent pixel, the second pixel, the 3rd pixel and the 4th pixel form a base pixel unit, described base pixel unit in the horizontal direction and the tight repeated arrangement of vertical direction, wherein, in described base pixel unit, the second sub-pix of the first pixel, the second pixel, the 3rd pixel and the 4th pixel is all disposed adjacent.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, described organic light emitting diode display pixel arrangement structure comprises the first pixel and the second pixel, the pixel column that described first pixel is formed and the pixel column vertically Heterogeneous Permutation that the second pixel is formed.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, second sub-pix of each the first adjacent pixel is disposed adjacent with the second sub-pix in the second pixel, and the second sub-pix in described second pixel is arranged on the rectangle diagonal at its adjacent first pixel first sub-pix, the second sub-pix place.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, described organic light emitting diode display pixel arrangement structure comprises compact arranged multiple first pixel and the 5th pixel, and wherein, described 5th pixel is turned over turnback by the second pixel relative level axis and formed; Wherein, each the first adjacent pixel and the 5th pixel form a base pixel unit, and in the horizontal direction and the tight repeated arrangement of vertical direction, the second sub-pix of described first pixel and the second sub-pix of the 5th pixel are oppositely arranged described base pixel unit.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, the shape of described first sub-pix and the second sub-pix is triangle, quadrangle, pentagon, hexagon or circle.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, described first sub-pix, the second sub-pix and the 3rd sub-pix are any one of red, green, blue glow color, and the glow color of described first sub-pix, the second sub-pix and the 3rd sub-pix is all not identical.
Further, in above-mentioned organic light emitting diode display pixel arrangement structure, described 3rd sub-pix is blue subpixels, and described first sub-pix is red sub-pixel, and described second sub-pix is green sub-pixels.
Separately, the present invention also provides a kind of display unit, and described display unit comprises above-mentioned organic light emitting diode display pixel arrangement structure.
Organic light emitting diode display pixel arrangement structure of the present invention and display unit improve pixel aperture ratio, make the arrangement architecture of the first sub-pix, the second sub-pix and the 3rd sub-pix compacter, Show Color is more even, breach the restriction of FMM manufacture craft and coating process, effectively improve PPI value and the resolution of OLED display, improve picture quality and the effect of OLED display.
Accompanying drawing explanation
Fig. 1 is the structural representation of organic light emitting diode display pixel arrangement structure first embodiment of the present invention;
Fig. 2 is first pixel of Fig. 1 and the structural representation of the second pixel one embodiment;
Fig. 3 is first pixel of Fig. 1 and the structural representation of second another embodiment of pixel;
Fig. 4 is the structural representation of organic light emitting diode display pixel arrangement structure second embodiment of the present invention;
Fig. 5 is the structural representation of organic light emitting diode display pixel arrangement structure the 3rd embodiment of the present invention;
Fig. 6 is the structural representation of organic light emitting diode display pixel arrangement structure the 4th embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of organic light emitting diode display pixel arrangement structure, comprise compact arranged multiple first pixel 10 and/or the second pixel 20, rectangle identical sized by each first pixel 10 and the second pixel 20, each first pixel 10 and the second pixel 20 comprise the first sub-pix 101, second sub-pix 102 being divided into this rectangle a pair linea angulata two ends and the 3rd sub-pix 103 arranged along another diagonal of this rectangle.
Refer to Fig. 1, the organic light emitting diode display pixel arrangement structure of first embodiment of the invention comprises multiple first pixel 10 and the second pixel 20, each the first adjacent pixel 10 and the second pixel 20 form a base pixel unit, and described base pixel unit in the horizontal direction and the tight repeated arrangement of vertical direction; Rectangle identical sized by each first pixel 10 and the second pixel 20, each first pixel 10 and the second pixel 20 comprise the first sub-pix 101, second sub-pix 102 being divided into this rectangle a pair linea angulata two ends and the 3rd sub-pix 103 arranged along another diagonal of this rectangle; And the second sub-pix 102 of described first pixel 10 is disposed adjacent with the second sub-pix 102 of the second pixel 20.Like this, repeated arrangement is carried out by the first pixel of multiple first sub-pix, the second sub-pix and the 3rd sub-pix being formed and the second pixel, and the first sub-pix, the second sub-pix and the 3rd sub-pix in the first pixel and the second pixel forms " little " font, higher pixel aperture ratio can be obtained, be conducive to the restriction breaking through FMM manufacture craft and coating process, the PPI value of effective lifting OLED display and resolution, improve picture quality and the effect of OLED display.
Refer to Fig. 2, in the present embodiment, square identical sized by each first pixel 10 and the second pixel 20.First sub-pix 101, second sub-pix 102 of described first pixel 10 is divided into the two ends of this square a pair linea angulata, 3rd sub-pix 103 of described first pixel 10 is arranged along another diagonal of this square, described 3rd sub-pix 103 is strip, namely long and narrow shape, described first sub-pix 101 is identical with the shape of the second sub-pix 102, be pentagon (cutting an angle by square to form), and described first sub-pix 101, second sub-pix 102 is symmetrical arranged about described 3rd sub-pix 103.Be appreciated that, the shape of described first sub-pix 101 and the second sub-pix 102 can also be other shapes such as triangle, quadrangle, hexagon, circle, only need ensure that the first sub-pix 101, second sub-pix 102 is symmetrical arranged about described 3rd sub-pix 103.
Described second pixel 20 and the first pixel 10 close-packed arrays, structure and first pixel 10 of described second pixel 20 are similar, namely the first sub-pix 101, second sub-pix 102 of described second pixel 20 is divided into the two ends of this square a pair linea angulata, 3rd sub-pix 103 of described second pixel 20 is arranged along another diagonal of this square, and the second sub-pix 102 of described second pixel 20 is disposed adjacent with the second sub-pix 102 of the second pixel 20.Make the second homochromy sub-pix arranged adjacent like this, and sub-pix of the same race can adopt common steaming mode evaporation, can increase mask plate opening, reduce Mask manufacture difficulty, be conducive to the evaporation of organic material and reduce colour mixture.
Refer to Fig. 3, in the present embodiment, described second pixel 20 turns over turnback, and namely described second pixel 20 is identical with the first pixel 10 structure.
Refer to Fig. 4, Fig. 4 is the structural representation of organic light emitting diode display pixel arrangement structure second embodiment of the present invention.Compared to the first embodiment, the difference of the present embodiment is: described organic light emitting diode display pixel arrangement structure also comprises the 3rd pixel 30 and the 4th pixel 40, wherein, described 3rd pixel 30 is turned over turnback by the first pixel 10 relative level axis and is formed, and described 4th pixel 40 is turned over turnback by the first pixel 10 relative level axis in the second pixel 20 and formed; In the present embodiment, each adjacent the first pixel 10, second pixel 20, the 3rd pixel 30 and the 4th pixel 40 form a base pixel unit, described base pixel unit in the horizontal direction and the tight repeated arrangement of vertical direction, wherein, in described base pixel unit, the second sub-pix 102 of the first pixel 10, second pixel 20, the 3rd pixel 30 and the 4th pixel 40 is all disposed adjacent.
Refer to Fig. 5, Fig. 5 is the structural representation of organic light emitting diode display pixel arrangement structure the 3rd embodiment of the present invention.Compared to the first embodiment, the difference of the present embodiment is: the pixel column that described first pixel 10 is formed and the pixel column vertically Heterogeneous Permutation that the second pixel 20 is formed.Preferably, in the present embodiment, the second sub-pix 102 of each the first adjacent pixel 10 is disposed adjacent with the second sub-pix 102 in the second pixel 20, and the second sub-pix 102 in described second pixel 20 is arranged on the rectangle diagonal at its adjacent first pixel 10 first sub-pix 101, second sub-pix 102 place.
Refer to Fig. 6, Fig. 6 is the structural representation of organic light emitting diode display pixel arrangement structure the 4th embodiment of the present invention.Compared to the first embodiment, the difference of the present embodiment is: described organic light emitting diode display pixel arrangement structure also comprises the 5th pixel 50, and wherein, described 5th pixel 50 is turned over turnback by the second pixel 20 relative level axis and formed; Wherein, each the first adjacent pixel 10 and the 5th pixel 50 form a base pixel unit, in the horizontal direction and the tight repeated arrangement of vertical direction, the second sub-pix of described first pixel and the second sub-pix of the 5th pixel are oppositely arranged described base pixel unit.
In the present invention, described first sub-pix 101, second sub-pix 102 and the 3rd sub-pix 103 can be any one of red, green, blue glow color, as long as the glow color of described first sub-pix 101, second sub-pix 102 and the 3rd sub-pix 103 is all not identical.Usually, luminous efficiency and the life-span of blue emitting material are minimum, and the efficiency of red material and life-span compare blue high, efficiency and the life-span of green material are the highest, therefore, when designing elemental area and arrangement, carry out by the relative area changed between sub-pix the impact that balancing material factor brings; The area of blue-light-emitting sub-pix is maximum, and redness is taken second place, green minimum.
In the present embodiment, described 3rd sub-pix 103 is blue subpixels B, and described first sub-pix 101 is red sub-pixel G, and described second sub-pix 102 is green sub-pixels G.In another embodiment, described 3rd sub-pix 103 is blue subpixels B, and described first sub-pix 101 is green sub-pixels G, and described second sub-pix 102 is red sub-pixel G.
In the present invention, the first sub-pix can be identical with the size of the second sub-pix, also can be different.
In addition, the present invention also provides a kind of display unit, and described display unit comprises above-mentioned organic light emitting diode display pixel arrangement structure.
Compared to prior art, the organic emission layer of the present invention in the pixel of OLED display deposits by utilizing mask (as fine metal mask FMM) and is formed.When reduce gap between neighbor with the high aperture obtaining pixel than time, deposition reliability can be reduced.On the other hand, when increasing the gap between pixel to improve deposition reliability, the aperture ratio of pixel can be reduced.The present invention is adopted by sub-pix of the same race and steams mode evaporation altogether, increases mask plate opening, reduces Mask manufacture difficulty, be conducive to the evaporation of organic material, decrease colour mixture.
Therefore, invention increases pixel aperture ratio, make the arrangement architecture of the first sub-pix, the second sub-pix and the 3rd sub-pix compacter, Show Color is more even, breach the restriction of FMM manufacture craft and coating process, effectively improve PPI value and the resolution of OLED display, improve picture quality and the effect of OLED display.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or substantive characteristics, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (10)
1. an organic light emitting diode display pixel arrangement structure, it is characterized in that, comprise compact arranged multiple first pixel and/or the second pixel, rectangle identical sized by each first pixel and the second pixel, each first pixel and the second pixel comprise the first sub-pix, the second sub-pix and the 3rd sub-pix that arranges along another diagonal of this rectangle that are divided into this rectangle a pair linea angulata two ends.
2. organic light emitting diode display pixel arrangement structure according to claim 1, it is characterized in that, each the first adjacent pixel and the second pixel form a base pixel unit, in the horizontal direction and the tight repeated arrangement of vertical direction, the second sub-pix of described first pixel is disposed adjacent with the second sub-pix of the second pixel described base pixel unit.
3. organic light emitting diode display pixel arrangement structure according to claim 1, it is characterized in that, described organic light emitting diode display pixel arrangement structure comprises the first pixel, the second pixel, the 3rd pixel and the 4th pixel, wherein, described 3rd pixel is turned over turnback by the first pixel relative level axis and is formed, and described 4th pixel is turned over turnback by the first pixel relative level axis in the second pixel and formed; Each first adjacent pixel, the second pixel, the 3rd pixel and the 4th pixel form a base pixel unit, described base pixel unit in the horizontal direction and the tight repeated arrangement of vertical direction, wherein, in described base pixel unit, the second sub-pix of the first pixel, the second pixel, the 3rd pixel and the 4th pixel is all disposed adjacent.
4. organic light emitting diode display pixel arrangement structure according to claim 1, it is characterized in that, described organic light emitting diode display pixel arrangement structure comprises the first pixel and the second pixel, the pixel column that described first pixel is formed and the pixel column vertically Heterogeneous Permutation that the second pixel is formed.
5. organic light emitting diode display pixel arrangement structure according to claim 4, it is characterized in that, second sub-pix of each the first adjacent pixel is disposed adjacent with the second sub-pix in the second pixel, and the second sub-pix in described second pixel is arranged on the rectangle diagonal at its adjacent first pixel first sub-pix, the second sub-pix place.
6. organic light emitting diode display pixel arrangement structure according to claim 5, it is characterized in that, described organic light emitting diode display pixel arrangement structure comprises compact arranged multiple first pixel and the 5th pixel, wherein, described 5th pixel is turned over turnback by the second pixel relative level axis and is formed; Wherein, each the first adjacent pixel and the 5th pixel form a base pixel unit, and in the horizontal direction and the tight repeated arrangement of vertical direction, the second sub-pix of described first pixel and the second sub-pix of the 5th pixel are oppositely arranged described base pixel unit.
7. organic light emitting diode display pixel arrangement structure according to claim 1, is characterized in that, the shape of described first sub-pix and the second sub-pix is triangle, quadrangle, pentagon, hexagon or circle.
8. the organic light emitting diode display pixel arrangement structure according to any one of claim 1 ~ 7, it is characterized in that, described first sub-pix, the second sub-pix and the 3rd sub-pix are any one of red, green, blue glow color, and the glow color of described first sub-pix, the second sub-pix and the 3rd sub-pix is all not identical.
9. organic light emitting diode display pixel arrangement structure according to claim 8, is characterized in that, described 3rd sub-pix is blue subpixels, and described first sub-pix is red sub-pixel, and described second sub-pix is green sub-pixels.
10. a display unit, is characterized in that, described display unit comprises the organic light emitting diode display pixel arrangement structure as described in any one of claim 1 ~ 9.
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