CN203150553U - Organic electroluminescence array substrate and display device - Google Patents
Organic electroluminescence array substrate and display device Download PDFInfo
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- CN203150553U CN203150553U CN2013201554087U CN201320155408U CN203150553U CN 203150553 U CN203150553 U CN 203150553U CN 2013201554087 U CN2013201554087 U CN 2013201554087U CN 201320155408 U CN201320155408 U CN 201320155408U CN 203150553 U CN203150553 U CN 203150553U
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Abstract
The utility model provides an organic electroluminescence array substrate and display device and belongs to the technical field of displaying. The organic electroluminescence array substrate and display device includes an active back board and a color display layer formed on the active back board. The color display layer includes a plurality of pixel units. Each of the pixel units includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, wherein areas of the red sub-pixel and the green sub-pixel are both smaller than the area of the blue sub-pixel. By adopting the technical scheme provided by the utility model, an aperture opening ratio of the organic electroluminescence array substrate can be increased.
Description
Technical field
The utility model relates to the Display Technique field, refers to a kind of organic electroluminescent array base palte, display unit especially.
Background technology
Compare with LCD, display of organic electroluminescence is a kind of self-luminous display with high-contrast and wide visual angle.It has lot of advantages, as: self-luminous, fast, the wide visual angle of response speed, can be used for flexible demonstrations, transparent demonstration, 3D demonstration etc.
Display of organic electroluminescence uses the arrangement of subpixels formation pixel of red-emitting, green glow, blue light respectively usually, and pixel is arranged and constituted matrix and then constitute display of organic electroluminescence.Wherein, the luminous efficiency difference of the organic electroluminescence device of red-emitting, green glow, blue light, the luminous efficiency of the organic electroluminescence device of red-emitting and transmitting green light is higher, and the luminous efficiency of the organic electroluminescence device of emission blue light is on the low side, and the life-span is shorter.In order to make display normally show white light, need mate three kinds of organic electroluminescence devices: such as the electric current that can increase the organic electroluminescence device that offers the emission blue light, the brightness of blue light and ruddiness, green glow are mated; Can cause the life-span of organic electroluminescence device to reduce but increase electric current, and then cause the life-span of display to reduce.
In order not influence the life-span of display, prior art mates the brightness of blue light and ruddiness, green glow often by increasing the efficient lighting area of the organic electroluminescence device of launching blue light.But in the design of the sub-pixel of existing display, the length of ruddiness sub-pixel, green glow sub-pixel, blue photons pixel all is identical with width, the efficient lighting area of blue photons pixel increases like this, mean that the efficient lighting area of ruddiness sub-pixel, green glow sub-pixel is less than the efficient lighting area of blue photons pixel, cause certainly existing the neither luminous zone that does not belong to opaque circuit again in ruddiness sub-pixel, the green glow sub-pixel, reduced the aperture opening ratio of ruddiness sub-pixel, green glow sub-pixel.
The utility model content
The technical problems to be solved in the utility model provides a kind of organic electroluminescent array base palte, display unit, can improve the aperture opening ratio of organic electroluminescent array base palte.
For solving the problems of the technologies described above, embodiment of the present utility model provides technical scheme as follows:
On the one hand, a kind of organic electroluminescent array base palte is provided, comprise active backboard and the colored display layer that is formed on the described active backboard, described colored display layer comprises a plurality of pixel cells, each pixel cell comprises red sub-pixel, green sub-pixels and blue subpixels, wherein, the area of described red sub-pixel and green sub-pixels is all less than the area of described blue subpixels.
Further, in the such scheme, the length of described red sub-pixel, green sub-pixels and blue subpixels is identical, and the width of described red sub-pixel and green sub-pixels is all less than the width of described blue subpixels.
Further, in the such scheme, the efficient lighting area of described red sub-pixel and green sub-pixels is all less than the efficient lighting area of described blue subpixels.
Further, in the such scheme, the efficient lighting area S of described red sub-pixel
R: the efficient lighting area S of described green sub-pixels
G: the efficient lighting area S of described blue subpixels
B=R
2R
3: R
1R
3: R
1R
2, R wherein
1Be the luminous efficiency of red sub-pixel, R
2Be the luminous efficiency of green sub-pixels, R
3Luminous efficiency for blue subpixels.
Further, in the such scheme, the width L of described red sub-pixel
1: the width L of described green sub-pixels
2: the width L of described blue subpixels
3=(S
R+ T
1): (S
G+ T
2): (S
B+ T
3), T wherein
1Be the area of red sub-pixel non-luminous region, T
2Be the area of green sub-pixels non-luminous region, T
3Area for the blue subpixels non-luminous region.
The utility model embodiment also provides a kind of display unit, comprises aforesaid organic electroluminescent array base palte, also comprises and the base plate for packaging of described display floater to establishing.
Embodiment of the present utility model has following beneficial effect:
In the such scheme, because the luminous efficiency of blue subpixels is less than the luminous efficiency of red sub-pixel, green sub-pixels, for the normal white light that shows, the efficient lighting area of blue subpixels is greater than the efficient lighting area of red sub-pixel, green sub-pixels.The technical solution of the utility model is under the luminous efficiency of blue subpixels situation on the low side, suitably reduce the area of ruddiness sub-pixel and green glow sub-pixel, increase the area of blue subpixels, make ruddiness sub-pixel and green glow sub-pixel not have the zone that does not use, thereby improved the aperture opening ratio of dot structure.
Description of drawings
Fig. 1 is the schematic diagram of arranging of organic electroluminescent array base palte in the existing display unit;
Fig. 2 is the schematic diagram of arranging of the utility model embodiment organic electroluminescent array base palte.
Reference numeral
101 scan lines, 102 data wires
103 power lines, 104 opaque circuit regions
107 red sub-pixel, 108 green sub-pixels
109 blue subpixels
Embodiment
For technical problem, technical scheme and advantage that embodiment of the present utility model will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiment of the present utility model is at the lower problem of aperture opening ratio of ruddiness sub-pixel, green glow sub-pixel in the existing display of organic electroluminescence, a kind of organic electroluminescent array base palte, display unit are provided, can improve the aperture opening ratio of organic electroluminescent array base palte.
The utility model embodiment provides a kind of organic electroluminescent array base palte, comprise active backboard and the colored display layer that is formed on the described active backboard, described colored display layer comprises a plurality of pixel cells, each pixel cell comprises red sub-pixel, green sub-pixels and blue subpixels, wherein, the area of described red sub-pixel and green sub-pixels is all less than the area of described blue subpixels.
Particularly, the length of described red sub-pixel, green sub-pixels and blue subpixels can be identical, and the width of described red sub-pixel and green sub-pixels is all less than the width of described blue subpixels.
Wherein, because the luminous efficiency of blue subpixels is less than the luminous efficiency of red sub-pixel, green sub-pixels, for the normal white light that shows, the efficient lighting area of described red sub-pixel and green sub-pixels is all less than the efficient lighting area of described blue subpixels.
Particularly, be complementary the efficient lighting area S of described red sub-pixel in order to make efficient lighting area and luminous efficiency
R: the efficient lighting area S of described green sub-pixels
G: the efficient lighting area S of described blue subpixels
B=R
2R
3: R
1R
3: R
1R
2, R wherein
1Be the luminous efficiency of red sub-pixel, R
2Be the luminous efficiency of green sub-pixels, R
3Luminous efficiency for blue subpixels.
Further, when the length of described red sub-pixel, green sub-pixels and blue subpixels is identical, the width L of described red sub-pixel
1: the width L of described green sub-pixels
2: the width L of described blue subpixels
3=(S
R+ T
1): (S
G+ T
2): (S
B+ T
3), T wherein
1Be the area of red sub-pixel non-luminous region, T
2Be the area of green sub-pixels non-luminous region, T
3Area for the blue subpixels non-luminous region.
The technical solution of the utility model is under the luminous efficiency of blue subpixels situation on the low side, suitably reduce the area of ruddiness sub-pixel and green glow sub-pixel, increase the area of blue subpixels, make ruddiness sub-pixel and green glow sub-pixel not have the zone that does not use, thereby improved the aperture opening ratio of dot structure.
The utility model embodiment also provides a kind of display unit, comprises aforesaid organic electroluminescent array base palte, also comprises and the base plate for packaging of described display floater to establishing.Described display unit can be electronic-paper display screen, mobile terminal display screen, TV, electronic reader etc.
The utility model embodiment also provides a kind of manufacture method of above-mentioned organic electroluminescent array base palte, comprising:
One active backboard is provided;
Form colored display layer at described active backboard, described colored display layer comprises a plurality of pixel cells, each pixel cell comprises red sub-pixel, green sub-pixels and blue subpixels, wherein, the area of described red sub-pixel and green sub-pixels is all on the area less than described blue subpixels.
Particularly, can form red sub-pixel, green sub-pixels and the blue subpixels that length is identical, width is different at described active backboard, the width of wherein said red sub-pixel and green sub-pixels is all less than the width of described blue subpixels.
Further, when the length of described red sub-pixel, green sub-pixels and blue subpixels is identical, forms red sub-pixel, green sub-pixels and blue subpixels at described active backboard and comprise:
Be L at described active backboard formation width
1Red sub-pixel, width be L
1Red sub-pixel and width be L
1Blue subpixels, L
1: L
2: L
3=(S
R+ T
1): (S
G+ T
2): (S
B+ T
3), S wherein
R: S
G: S
B=R
2R
3: R
1R
3: R
1R
2
Wherein, S
RBe the efficient lighting area of red sub-pixel, S
GBe the efficient lighting area of described green sub-pixels, S
BBe the efficient lighting area of described blue subpixels, T
1Be the area of red sub-pixel non-luminous region, T
2Be the area of green sub-pixels non-luminous region, T
3Be the area of blue subpixels non-luminous region, R
1Be the luminous efficiency of red sub-pixel, R
2Be the luminous efficiency of green sub-pixels, R
3Luminous efficiency for blue subpixels.
Below in conjunction with accompanying drawing and specific embodiment organic electroluminescent array base palte of the present utility model is described in detail:
Figure 1 shows that the schematic diagram of arranging of pixel in the existing organic electroluminescence device, as seen from Figure 1, the organic electroluminescent array base palte comprises active backboard, be formed with many scan lines that are parallel to each other 101 on the described active backboard, many the data wires that are parallel to each other 102 and many power lines 103, scan line 101 and data wire 102 is vertical and limit subpixel area mutually, the subpixel area that limits has red sub-pixel 107, green sub-pixels 108 and blue subpixels 109, this three sub pixel is according to red, green, the blue adjacent repeated arrangement of order, adjacent red sub-pixel 107, green sub-pixels 108 and blue subpixels 109 constitute a pixel cell.Each sub-pixel all includes an organic electroluminescence device 106, correspondingly, red sub-pixel, green sub-pixels, blue subpixels also contain respectively can send red, green, the luminescent device of blue three-color, each sub-pixel also includes a driving transistors at least, a switching transistor and an electric capacity, the drain electrode of this driving transistors and power line 103 electrically connect, the source electrode of driving transistors and the anode of organic electroluminescence device 105 electrically connect, the grid of driving transistors and the drain electrode of this switching transistor electrically connect, one end of this electric capacity and the grid of this driving transistors electrically connect, and the other end of this electric capacity and the source electrode of this driving transistors electrically connect.The grid of this switching transistor and scan line electrically connect, and source electrode and data wire electrically connect.
As shown in Figure 1, in the existing sub-pixel design, the width of red sub-pixel, green sub-pixels and blue subpixels, length all are identical, and the area of opaque circuit region 104 is also basic identical in three sub pixels, because the luminous efficiency of blue subpixels is less than the luminous efficiency of red sub-pixel and green sub-pixels, for the normal white light that shows, the efficient lighting area of blue subpixels is greater than the efficient lighting area of red sub-pixel and green sub-pixels.Under the different situation of the efficient lighting area of red sub-pixel, green sub-pixels, blue subpixels, the sub-pixel design is subjected to the restriction of the blue subpixels of efficient lighting area maximum, then red sub-pixel, green sub-pixels certainly exist neither luminous, do not belong to the zone of opaque circuit region again, cause the aperture opening ratio of red sub-pixel, green sub-pixels lower.
In order to address the above problem, in the technical solution of the utility model, at first according to the matching condition of redgreenblue light and the factor such as luminous efficiency, life-span of launching the organic electroluminescence device of redgreenblue light respectively, obtain the proportionate relationship between the required efficient lighting area of each sub-pixel, particularly, can determine the efficient lighting area ratio of red sub-pixel, green sub-pixels and blue subpixels according to following formula:
S
R：S
G：S
B=R
2R
3：R
1R
3：R
1R
2；
Wherein, R
1Be the luminous efficiency of red sub-pixel, R
2Be the luminous efficiency of green sub-pixels, R
3Luminous efficiency for blue subpixels.
After the efficient lighting area ratio of determining red sub-pixel, green sub-pixels and blue subpixels, the area of red sub-pixel, green sub-pixels and blue subpixels be can adjust according to this ratio, the size of ruddiness sub-pixel and green glow sub-pixel, the size of increase blue photons pixel suitably reduced.As shown in Figure 2, the width of the red sub-pixel that the length of a pixel cell and the wide L that is, pixel cell comprise, green sub-pixels, blue subpixels is respectively L
1, L
2, L
3, the area of red sub-pixel non-luminous region is T
1, the area of green sub-pixels non-luminous region is T
2, the area of blue subpixels non-luminous region is T
3, the ratio L of red sub-pixel, green sub-pixels, blue subpixels width then
1: L
2: L
3Can determine as follows: L
1: L
2: L
3=(S
R+ T
1): (S
G+ T
2): (S
B+ T
3).
Because the luminous efficiency of blue subpixels is less than the luminous efficiency of red sub-pixel, green sub-pixels, for the normal white light that shows, the efficient lighting area of blue subpixels is greater than the efficient lighting area of red sub-pixel, green sub-pixels.The technical solution of the utility model is under the luminous efficiency of blue subpixels situation on the low side, reduce the area of ruddiness sub-pixel and green glow sub-pixel according to the ratio of luminous efficiency, increase the area of blue subpixels, make ruddiness sub-pixel and green glow sub-pixel not have the zone that does not use, thereby improved the aperture opening ratio of dot structure.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. organic electroluminescent array base palte, comprise active backboard and the colored display layer that is formed on the described active backboard, described colored display layer comprises a plurality of pixel cells, each pixel cell comprises red sub-pixel, green sub-pixels and blue subpixels, it is characterized in that the area of described red sub-pixel and green sub-pixels is all less than the area of described blue subpixels.
2. organic electroluminescent array base palte according to claim 1, it is characterized in that, the length of described red sub-pixel, green sub-pixels and blue subpixels is identical, and the width of described red sub-pixel and green sub-pixels is all less than the width of described blue subpixels.
3. organic electroluminescent array base palte according to claim 2 is characterized in that, the efficient lighting area of described red sub-pixel and green sub-pixels is all less than the efficient lighting area of described blue subpixels.
4. organic electroluminescent array base palte according to claim 3 is characterized in that, the efficient lighting area S of described red sub-pixel
R: the efficient lighting area S of described green sub-pixels
G: the efficient lighting area S of described blue subpixels
B=R
2R
3: R
1R
3: R
1R
2, R wherein
1Be the luminous efficiency of red sub-pixel, R
2Be the luminous efficiency of green sub-pixels, R
3Luminous efficiency for blue subpixels.
5. organic electroluminescent array base palte according to claim 4 is characterized in that, the width L of described red sub-pixel
1: the width L of described green sub-pixels
2: the width L of described blue subpixels
3=(S
R+ T
1): (S
G+ T
2): (S
B+ T
3), T wherein
1Be the area of red sub-pixel non-luminous region, T
2Be the area of green sub-pixels non-luminous region, T
3Area for the blue subpixels non-luminous region.
6. a display unit is characterized in that, comprises as each described organic electroluminescent array base palte among the claim 1-5, also comprises and the base plate for packaging of described array base palte to establishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201554087U CN203150553U (en) | 2013-03-29 | 2013-03-29 | Organic electroluminescence array substrate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201554087U CN203150553U (en) | 2013-03-29 | 2013-03-29 | Organic electroluminescence array substrate and display device |
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| Publication Number | Publication Date |
|---|---|
| CN203150553U true CN203150553U (en) | 2013-08-21 |
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|---|---|---|---|
| CN2013201554087U Expired - Lifetime CN203150553U (en) | 2013-03-29 | 2013-03-29 | Organic electroluminescence array substrate and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867450A (en) * | 2015-06-05 | 2015-08-26 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method therefor, and display device |
| CN109727531A (en) * | 2017-10-31 | 2019-05-07 | 云谷（固安）科技有限公司 | A kind of display panel and terminal |
-
2013
- 2013-03-29 CN CN2013201554087U patent/CN203150553U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867450A (en) * | 2015-06-05 | 2015-08-26 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method therefor, and display device |
| CN104867450B (en) * | 2015-06-05 | 2017-09-19 | 京东方科技集团股份有限公司 | Array base palte and preparation method thereof, display device |
| US9985085B2 (en) | 2015-06-05 | 2018-05-29 | Boe Technology Group Co., Ltd. | Array substrate for narrow frame design, manufacturing method thereof and display device |
| CN109727531A (en) * | 2017-10-31 | 2019-05-07 | 云谷（固安）科技有限公司 | A kind of display panel and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |