CN104637986A - OLED (optical light emitting diode) pixel arrangement structure and display device - Google Patents
OLED (optical light emitting diode) pixel arrangement structure and display device Download PDFInfo
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Abstract
The invention discloses an OLED (optical light emitting diode) pixel arrangement structure and a display device. The pixel arrangement structure comprises a plurality of repeated arrangement virtual octagons, wherein each virtual octagon consists of four first sub pixels, four second sub pixels and at least two third pixels, the centers of the at least two third sub pixels are coincident with the center of the virtual octagon, the centers of the four first sub pixels of each virtual octagon are respectively positioned at four first peaks of the left upper corner and the right lower corner of the virtual octagon, the centers of the four second sub pixels of each virtual octagon are respectively positioned on four second peaks of the right upper corner and the left lower corner of the virtual octagon, and a basic pixel unit is formed through the adjacent first sub pixels and the second sub pixels in each virtual octagon and the third sub pixels opposite to the first sub pixels and the second sub pixels. The OLED pixel arrangement structure and the display device have the advantages that the limitation of a manufacturing process and a film plating process is broken through, an OLED display PPI (pixels per inch) value and the resolution ratio can be effectively improved, and the OLED display image quality and the OLED display image effect are improved.
Description
Technical field
The present invention relates to technical field of manufacturing semiconductors, particularly a kind of OLED 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-sub pixels planar alternately repeated arrangement, adjacent three sub-pixels 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.
Summary of the invention
The present invention proposes a kind of OLED 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 OLED pixel arrangement structure, comprise the virtual octagon being formed repeated arrangement by multiple first sub-pixel, the second sub-pixel and the 3rd sub-pixel, each virtual octagon OC is made up of four the first sub-pixels, four the second sub-pixels and at least two the 3rd sub-pixels, the center of described at least two the 3rd sub-pixels and the center superposition of described virtual octagon OC, the center of described four the first sub-pixels lays respectively at four first summit places in the described virtual octagonal upper left corner and the lower right corner; The center of described four the second sub-pixels lays respectively at four second summit places in the described virtual octagonal upper right corner and the lower left corner, the first sub-pixel adjacent in each virtual octagon, the second sub-pixel and form a base pixel unit with this first sub-pixel, the 3rd sub-pixel that the second sub-pixel is relative.
Further, in above-mentioned OLED pixel arrangement structure, the number ratio of the first sub-pixel that each virtual octagon comprises, the second sub-pixel and the 3rd sub-pixel is 2:2:1.
Further, in above-mentioned OLED pixel arrangement structure, each base pixel unit comprises 1 the first sub-pixel, 1 the second sub-pixel and 1/2 the 3rd sub-pixel.
Further, in above-mentioned OLED pixel arrangement structure, described virtual octagon is octagon.
Further, in above-mentioned OLED pixel arrangement structure, in each virtual octagon, in a pair first sub-pixels in the upper left corner or the lower right corner and another virtual octagon, a pair first sub-pixels in the lower right corner or the upper left corner are adjacent; In each virtual octagon, in a pair second sub-pixels in the upper right corner or the lower left corner and another virtual octagon, a pair second sub-pixels in the lower left corner or the upper right corner are adjacent.
Further, in above-mentioned OLED pixel arrangement structure, two couple first sub-pixel adjacent in described two virtual octagons forms the first sub-pixel for emitting light district, and in described first luminous zone each first sub-pixel with vertically go up another the first sub-pixel close-packed arrays.
Further, in above-mentioned OLED pixel arrangement structure, two couple second sub-pixel adjacent in described two virtual octagons forms the second sub-pixel for emitting light district, and each second sub-pixel and another vertically adjacent the second sub-pixel close-packed arrays in described second sub-pixel for emitting light district.
Further, in above-mentioned OLED pixel arrangement structure, described at least two the 3rd sub-pixels vertically, horizontal direction or arranged askew, to form the 3rd sub-pixel for emitting light district.
Further, in above-mentioned OLED pixel arrangement structure, described first sub-pixel is blue subpixels, described second sub-pixel is red sub-pixel, described 3rd sub-pixel is green sub-pixels, and the area of described first sub-pixel is greater than the area of the second sub-pixel, the area of described second sub-pixel is greater than the area of the 3rd sub-pixel.
Separately, the present invention also provides a kind of display unit, and described display unit comprises above-mentioned OLED pixel arrangement structure.
OLED pixel arrangement structure of the present invention and display unit are by carrying out repeated arrangement by multiple first sub-pixel, the second sub-pixel and the 3rd sub-pixel according to virtual octagonal structure, and virtual octagon is divided into 4 base pixel unit, make the arrangement architecture of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel 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 OLED pixel arrangement structure of the present invention;
Fig. 2 is the virtual octagonal structural representation of Fig. 1;
Fig. 3 be Fig. 1 virtual octagon in an example structure schematic diagram of base pixel unit;
Fig. 4 be Fig. 1 virtual octagon in the structural representation of luminous zone.
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.
Refer to Fig. 1 and Fig. 2, the OLED pixel arrangement structure of first embodiment of the invention comprises by multiple first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 103 form the virtual octagon OC of repeated arrangement, each virtual octagon OC is by four the first sub-pixels 101, four the second sub-pixels 102 and at least two the 3rd sub-pixels 103 form, the center of described at least two the 3rd sub-pixels 103 and the center superposition of described virtual octagon OC, the center of described four the first sub-pixels 101 lays respectively at the upper left corner of described virtual octagon OC and four first P1 places, summit in the lower right corner, the center of described four the second sub-pixels 102 lays respectively at the upper right corner of described virtual octagon OC and four second P2 places, summit in the lower left corner, and the first sub-pixel 101, second sub-pixel 102 adjacent in each virtual octagon OC and three sub-pixel 103 relative with this first sub-pixel 101, second sub-pixel 102 form a base pixel unit.Like this, by multiple first sub-pixel, the second sub-pixel and the 3rd sub-pixel are carried out repeated arrangement according to virtual octagonal structure, and virtual octagon is divided 4 base pixel unit, the restriction of FMM manufacture craft and coating process can be broken through, the PPI value of effective lifting OLED display and resolution, improve picture quality and the effect of OLED display.
Wherein, each virtual octagon OC has at least two Symmetric Orthogonal axles, and in the present embodiment, described virtual octagon OC is octagon.
In the present embodiment, described OLED pixel arrangement structure is arranged by the first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 103 and forms, and the sub-pixel group being positioned over 10 sub-pixels formation repeated arrangement at the first summit P1 of described virtual octagon OC, the second summit P2 and center arranges in the pixel planes repetitive cycling of display unit.Can find out, the first summit P1 of described virtual octagon OC, that four the first sub-pixels, 101, four second sub-pixel 102 elements at the second P2 place, summit are each virtual octagon is exclusive, therefore, when calculating sub-pixel number, this the first sub-pixel 101, second sub-pixel 102 can be used as 1 respectively, therefore, each virtual octagon OC comprises 4 × 1, i.e. 4 the first sub-pixels and 4 the second sub-pixels, 3rd sub-pixel 103 at each virtual octagon OC center is calculated to be 2, and namely each virtual octagon OC comprises 2 the 3rd sub-pixels.To sum up, the number ratio of the first sub-pixel that each virtual octagon OC comprises, the second sub-pixel and the 3rd sub-pixel is 2:2:1, and namely in display unit, the number ratio of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel is 2:2:1.
Refer to Fig. 3, described first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 103 form multiple base pixel unit, and described base pixel unit is single pixel repetitive, and it draws by a virtual triangle frame RE; The frame of described virtual triangle frame RE passes the center of 3 sub-pixels, and namely the frame of described virtual triangle frame RE is each passed through adjacent first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 103; Each virtual octagon OC comprises four to the first adjacent sub-pixel 101 and the second sub-pixel 102, the first sub-pixel 101 that this four couple is adjacent and the second sub-pixel 102 form four base pixel unit with two the 3rd sub-pixels 103 at virtual octagon OC center, namely each 3rd sub-pixel 103 is shared by two virtual triangle frames, therefore, each virtual triangle frame RE comprises 1 the first sub-pixel, 1 the second sub-pixel and 1/2 the 3rd sub-pixel respectively.Therefore, be made up of 2.5 sub-pixels in the base pixel unit of display unit, also be understood to 1 the 3rd sub-pixel by 2 base pixel units shareds, in described base pixel unit, the number ratio of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel is 2:2:1.
Refer to Fig. 4, in the present invention, in a pair sub-pixel in the upper left corner in each virtual octagon OC, the lower right corner or the upper right corner, the lower left corner and another virtual octagon OC, a pair of identical sub-pixel is adjacent, and namely in each virtual octagon OC, in a pair first sub-pixels in the upper left corner or the lower right corner and another virtual octagon OC, a pair first sub-pixels in the lower right corner or the upper left corner are adjacent; In each virtual octagon OC, in a pair second sub-pixels in the upper right corner or the lower left corner and another virtual octagon OC, a pair second sub-pixels in the lower left corner or the upper right corner are adjacent.
Two couple first sub-pixel 101,101 ' adjacent in two virtual octagon OC forms the first sub-pixel for emitting light district I, and in described first luminous zone I each first sub-pixel 101 with vertically go up another the first sub-pixel 101 ' close-packed arrays, thus form four the first sub-pixels arranged in " Z " font; Two relative the first sub-pixel for emitting light district I are symmetrical along the diagonal of virtual octagon OC, and between two first sub-pixels of not close arrangement in described first sub-pixel for emitting light district I, vertical interval is 0 ~ 100um.
Equally, two couple second sub-pixel 102,102 ' adjacent in two virtual octagon OC forms the second sub-pixel for emitting light district II, and each second sub-pixel 102 and another vertically adjacent the second sub-pixel 102 ' close-packed arrays in described second sub-pixel for emitting light district II, thus form four the second sub-pixels of the arrangement in " Z " font; Two relative the second sub-pixel for emitting light district II are symmetrical along the diagonal of virtual octagon OC, and between two second sub-pixels of not close arrangement in described second sub-pixel for emitting light district II, vertical interval is 0 ~ 100um.
In the present embodiment, described at least two the 3rd sub-pixels 103 are two, and two the 3rd sub-pixels 103 vertically close-packed arrays at each virtual octagon OC center, to form the 3rd sub-pixel for emitting light district III.Described in being appreciated that, at least two the 3rd sub-pixels 103 can also be two or more, and described at least two the 3rd sub-pixels 103 can also be vertical direction, horizontal direction or arranged askew.
Therefore, described first sub-pixel, the second sub-pixel and the 3rd sub-pixel are structurally corresponding mask plate (mask) opening of two sub-pixels, and four the first sub-pixels form one first sub-pixel for emitting light district I, four the second sub-pixel elements form one second sub-pixel for emitting light district I, so colour mixture problem need not be considered, therefore significantly can reduce the spacing between pixel, thus the aperture opening ratio of display floater can be improved, be conducive to making high PPI(high-resolution) display floater.
In the present invention, described first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 103 can be any one of red, green, blue glow color, as long as the glow color of described first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 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-pixel the impact that balancing material factor brings; The area of blue light-emitting sub-pixel is maximum, and redness is taken second place, green minimum.
In the present embodiment, described first sub-pixel 101 is blue subpixels R, and described second sub-pixel 102 is red sub-pixel G, and described 3rd sub-pixel 103 is green sub-pixels B.Namely in this color alignment example, each base pixel unit comprises 1 blue subpixels, 1 red sub-pixel and 1/2 green sub-pixels.
In another embodiment, described first sub-pixel 101 is red sub-pixel R, and described second sub-pixel 102 is blue subpixels G, and described 3rd sub-pixel 103 is green sub-pixels B.Namely in this color alignment example, each base pixel unit comprises 1 red sub-pixel, 1 blue subpixels and 1/2 green sub-pixels.
It should be noted that, in above-described embodiment, described first sub-pixel 101 and the second sub-pixel 102 are square, described 3rd sub-pixel 103 is rectangle, and does not consider the size of spacing between the first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 103 three and single sub-pixel.But, in the making of actual display panel, the apparatus and process such as the insulating barrier of metal mask plate, pixel segmentation, the precision of plated film, and the factor such as material luminous efficiency, driving design, the arrangement of capital restriction pixel, shape size, and the line space design between sub-pixel.
Consider some above-mentioned factor, described first sub-pixel 101 and the second sub-pixel 102 are symmetrical pentagon, be appreciated that the shape of described first sub-pixel 101, second sub-pixel 102 and the 3rd sub-pixel 103 also can be the polygons such as triangle, quadrangle, hexagon, heptagon, octagon.
In the present invention, the size of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel can be identical, also can be different.In the present embodiment, be positioned at the first sub-pixel 101(blue subpixels B at described virtual octagon OC center) area maximum, described second sub-pixel 102(red sub-pixel R) area take second place, described 3rd sub-pixel 103(green sub-pixels G) area minimum.
In addition, the present invention also provides a kind of display unit, and described display unit comprises above-mentioned OLED pixel arrangement structure.
Compared to prior art, OLED pixel arrangement structure of the present invention and display unit are by carrying out repeated arrangement by multiple first sub-pixel, the second sub-pixel and the 3rd sub-pixel according to virtual octagonal structure, and virtual octagon is divided into 4 base pixel unit, make the arrangement architecture of the first sub-pixel, the second sub-pixel and the 3rd sub-pixel 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 OLED pixel arrangement structure, it is characterized in that, comprise the virtual octagon being formed repeated arrangement by multiple first sub-pixel, the second sub-pixel and the 3rd sub-pixel, each virtual octagon OC is made up of four the first sub-pixels, four the second sub-pixels and at least two the 3rd sub-pixels, the center of described at least two the 3rd sub-pixels and the center superposition of described virtual octagon OC, the center of described four the first sub-pixels lays respectively at four first summit places in the described virtual octagonal upper left corner and the lower right corner; The center of described four the second sub-pixels lays respectively at four second summit places in the described virtual octagonal upper right corner and the lower left corner, the first sub-pixel adjacent in each virtual octagon, the second sub-pixel and form a base pixel unit with this first sub-pixel, the 3rd sub-pixel that the second sub-pixel is relative.
2. OLED pixel arrangement structure according to claim 1, is characterized in that, the number ratio of the first sub-pixel that each virtual octagon comprises, the second sub-pixel and the 3rd sub-pixel is 2:2:1.
3. OLED pixel arrangement structure according to claim 2, is characterized in that, each base pixel unit comprises 1 the first sub-pixel, 1 the second sub-pixel and 1/2 the 3rd sub-pixel.
4. OLED pixel arrangement structure according to claim 1, is characterized in that, described virtual octagon is octagon.
5. OLED pixel arrangement structure according to claim 1, is characterized in that, in each virtual octagon, in a pair first sub-pixels in the upper left corner or the lower right corner and another virtual octagon, a pair first sub-pixels in the lower right corner or the upper left corner are adjacent; In each virtual octagon, in a pair second sub-pixels in the upper right corner or the lower left corner and another virtual octagon, a pair second sub-pixels in the lower left corner or the upper right corner are adjacent.
6. OLED pixel arrangement structure according to claim 5, it is characterized in that, two couple first sub-pixel adjacent in described two virtual octagons forms the first sub-pixel for emitting light district, and in described first luminous zone each first sub-pixel with vertically go up another the first sub-pixel close-packed arrays.
7. OLED pixel arrangement structure according to claim 5, it is characterized in that, two couple second sub-pixel adjacent in described two virtual octagons forms the second sub-pixel for emitting light district, and each second sub-pixel and another vertically adjacent the second sub-pixel close-packed arrays in described second sub-pixel for emitting light district.
8. OLED pixel arrangement structure according to claim 5, is characterized in that, described at least two the 3rd sub-pixels vertically, horizontal direction or arranged askew, to form the 3rd sub-pixel for emitting light district.
9. the OLED pixel arrangement structure according to any one of claim 1 ~ 8, it is characterized in that, described first sub-pixel is blue subpixels, described second sub-pixel is red sub-pixel, described 3rd sub-pixel is green sub-pixels, and the area of described first sub-pixel is greater than the area of the second sub-pixel, the area of described second sub-pixel is greater than the area of the 3rd sub-pixel.
10. a display unit, is characterized in that, described display unit comprises the OLED pixel arrangement structure as described in any one of claim 1 ~ 9.
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| CN108962944A (en) * | 2017-09-12 | 2018-12-07 | 武汉华星光电半导体显示技术有限公司 | A kind of OLED display panel and its pixel arrangement structure |
| CN114783383A (en) * | 2022-02-28 | 2022-07-22 | Tcl华星光电技术有限公司 | Backlight module and display panel |
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| US20110260951A1 (en) * | 2010-04-21 | 2011-10-27 | Soonjae Hwang | Subpixel arrangement structure of display device |
| CN103985735A (en) * | 2014-04-25 | 2014-08-13 | 友达光电股份有限公司 | Display panel |
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| US20110260951A1 (en) * | 2010-04-21 | 2011-10-27 | Soonjae Hwang | Subpixel arrangement structure of display device |
| CN103985735A (en) * | 2014-04-25 | 2014-08-13 | 友达光电股份有限公司 | Display panel |
| CN104091567A (en) * | 2014-04-25 | 2014-10-08 | 友达光电股份有限公司 | Display panel and pixel array thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108962944A (en) * | 2017-09-12 | 2018-12-07 | 武汉华星光电半导体显示技术有限公司 | A kind of OLED display panel and its pixel arrangement structure |
| CN114783383A (en) * | 2022-02-28 | 2022-07-22 | Tcl华星光电技术有限公司 | Backlight module and display panel |
| CN114783383B (en) * | 2022-02-28 | 2023-12-15 | Tcl华星光电技术有限公司 | Backlight module and display panel |
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