A kind of OLED minitype displayer light emitting pixel aligning methodTechnical field
The present invention relates to OLED minitype displayer technical field, especially a kind of OLED minitype displayer light emitting pixel arrangementMethod.
Background technique
In flat panel display, OLED display is frivolous with its, actively shine, fast-response speed, wide viewing angle, color are richThe many merits such as rich and high brightness, low-power consumption, high-low temperature resistant and be known as being the after liquid crystal display (LCD) by industryThree generations's display technology.OLED is divided into active OLE D(AMO LE D according to the difference of driving method) and passive type OLED(PMOLED).PMOLED advantage is that processing procedure is simple compared with AMOLED, structure is simple, disadvantage be it is in large size have any problem, for dimensionThe brightness of entire panel is held, the brightness of each pixel need to be improved and improve operation electric current, therefore can reduce the OLED device service life, andElectric current drive control is not easy.AMOLED advantage is can be in large size, and compared with power saving, high-resolution, panel is lasted a long time, and driving is setHaggle over simply, disadvantage is that processing procedure is more complex, and TFT variability is higher.
205752175 U of Chinese utility model patent CN discloses the pixel arrangement structure of a kind OLED display, withBasic unit repeated arrangement is constituted, and the basic unit includes 4 logical pixels being made of 2 row, 4 column, 8 sub-pixels,Respectively red, green (R, G) logical pixel, blue, white (B, W) logical pixel, blue, yellow (B, Y) logical pixel and red, green (R, G) are patrolledCollect pixel.
As shown in Figure 1, in the prior art, OLED minitype displayer RGB(RGB) light emitting sub-pixel is common stripArrangement, and dimensioned area is the same.But the OLED device luminous efficiency and luminescent lifetime of tri- color of RGB are completely different, it is blueThe luminous efficiency (< 10cd/A) and service life (original intensity 500cd/m of light2Under, T97 < 500 hour) be it is minimum, green light shineEfficiency (> 80cd/A) and service life (original intensity 5000cd/m2Under, T97 > 2000 hour) highest.So, cause to show pictureComplexion decaying or color change are very serious, especially white screen.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind can be effectively improved OLED minitype displayer display colorThe light emitting pixel aligning method of variation or color decline.
In order to solve the above technical problems, a kind of OLED minitype displayer light emitting pixel aligning method of the invention, at oneIn square light emitting pixel, G sub-pixel is placed among B and R sub-pixel, the G sub-pixel is surround by B and R sub-pixel, describedG sub-pixel area is minimum, and B sub-pixel area is maximum, is secondly R sub-pixel；It is separated between sub-pixel and sub-pixel with insulating layer.
Preferably, the G sub-pixel is arranged among light emitting pixel, surround G sub-pixel in concave shape B sub-pixel, BR sub-pixel is set on the outside of pixel and G sub-pixel, and the R sub-pixel and G sub-pixel are integrally in be adapted with concave shape B sub-pixelConvex shape.
Preferably, the G sub-pixel is arranged among light emitting pixel, and the setting of R sub-pixel is in character cut in bas-relief in G sub-pixel sideShape B sub-pixel by R sub-pixel and G sub-pixel integral loop around.
After adopting the above method, the present invention can largely improve the variation of OLED minitype displayer display color or colorDecaying, compared with existing scheme, the white screen service life can at least improve 1.5 times, chromaticity coordinates variation by original ± 0.05 improve for ±0.02。
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is present invention pixel arrangement schematic diagram in the prior art.
Fig. 2 is the pixel arrangement schematic diagram of embodiment of the present invention one.
Fig. 3 is the pixel arrangement schematic diagram of embodiment of the present invention two.
In figure: 1 is light emitting pixel, and 2 be R sub-pixel, and 3 be G sub-pixel, and 4 be B sub-pixel.
Specific embodiment
A kind of OLED minitype displayer light emitting pixel aligning method of the invention will in a square light emitting pixel 1G sub-pixel 3 is placed among B and R sub-pixel, and the G sub-pixel 3 is surround by B and R sub-pixel, and 3 area of G sub-pixel is minimum,4 area of B sub-pixel is maximum, is secondly R sub-pixel 2；It is separated between sub-pixel and sub-pixel with insulating layer.
As shown in Figure 1, in the prior art,
The first step, makes pixel using cmos semiconductor technique on Si base substrate, and elemental area is 9 μm of 9 μ m, RGB pictureVegetarian noodles product is respectively 8.4 μm of 2.6 μ m, is separated between sub-pixel and sub-pixel with insulating layer.
Second step makes OLED device and cathode and encapsulation.
Embodiment one:
As shown in Fig. 2,
The first step, makes pixel using cmos semiconductor technique on Si base substrate, and elemental area is 9 μm of 9 μ m, G sub-pixelArea is respectively 2.6 μm of 2.6 μ m, and R sub-pixel area is 8.4 μm of 2.6 μ m, remaining is then all B sub-pixel, sub-pixel and sonIt is separated between pixel with insulating layer.The G sub-pixel 3 is arranged among light emitting pixel 1, in concave shape B sub-pixel 4 by G pictureElement 3 is surround, and is arranged R sub-pixel 2 on the outside of B sub-pixel 4 and G sub-pixel 3, and the R sub-pixel 2 is whole with G sub-pixel 3 to be in and character cut in bas-reliefThe adaptable convex shape of shape B sub-pixel 4.
Second step makes OLED device and cathode and encapsulation.
Embodiment two:
As shown in figure 3,
The first step, makes pixel using cmos semiconductor technique on Si base substrate, and elemental area is 9 μm of 9 μ m, G sub-pixelArea is respectively 2.6 μm of 2.6 μ m, and R sub-pixel area is 2.6 μm of 2.6 μ m, remaining is then all B sub-pixel, sub-pixel and sonIt is separated between pixel with insulating layer.The G sub-pixel 3 is arranged among light emitting pixel 1, and R sub-pixel 2 is arranged in G sub-pixel 3 oneSide, in concave shape B sub-pixel 4 by R sub-pixel 2 and 3 integral loop of G sub-pixel around.
Second step makes OLED device and cathode and encapsulation.
By the prior art and present patent application embodiment one, two white screen light emission luminance, white screen service life and white screen chromaticity coordinatesChange test data record such as table 1.
1 prior art of table and embodiment test data table
| White screen light emission luminance (cd/m2) | White screen service life T95 (hour) | The variation of white screen chromaticity coordinates |
| The prior art | 100 | 330 | ±0.05 |
| Embodiment one | 220 | 623 | ±0.02 |
| Embodiment two | 145 | 471 | ±0.03 |
Although specific embodiments of the present invention have been described above, those skilled in the art should be appreciated that these onlyIt is for example, various changes or modifications, without departing from the principle and substance of the present invention, this hair can be made to present embodimentBright protection scope is only limited by the claims that follow.