CN110289303B - Pixel structure of PMOLED screen body and PMOLED screen body - Google Patents

Pixel structure of PMOLED screen body and PMOLED screen body Download PDF

Info

Publication number
CN110289303B
CN110289303B CN201910700996.XA CN201910700996A CN110289303B CN 110289303 B CN110289303 B CN 110289303B CN 201910700996 A CN201910700996 A CN 201910700996A CN 110289303 B CN110289303 B CN 110289303B
Authority
CN
China
Prior art keywords
pixel
color
color pixel
pixel area
mask
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910700996.XA
Other languages
Chinese (zh)
Other versions
CN110289303A (en
Inventor
张国辉
陈旭
董艳波
于永超
吴海燕
胡永岚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guan Yeolight Technology Co Ltd
Original Assignee
Guan Yeolight Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guan Yeolight Technology Co Ltd filed Critical Guan Yeolight Technology Co Ltd
Priority to CN201910700996.XA priority Critical patent/CN110289303B/en
Publication of CN110289303A publication Critical patent/CN110289303A/en
Application granted granted Critical
Publication of CN110289303B publication Critical patent/CN110289303B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • 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
    • H10K59/10—OLED displays
    • H10K59/17—Passive-matrix OLED displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • 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

Landscapes

  • Electroluminescent Light Sources (AREA)

Abstract

The application discloses a pixel structure of a PMOLED screen body and the PMOLED screen body; the pixel structure comprises a plurality of pixel units; the pixel unit comprises a first color pixel area and a second color pixel area which are arranged up and down. According to the technical scheme provided by the embodiment of the application, the pixel unit further comprises a third color pixel area, and the first color pixel area and the third color pixel area are arranged above or below the second color pixel area side by side; the technical scheme of this application is different from the shape that adopts rectangular shape open-ended MASK among the prior art, can adopt the MASK shape of interval trompil, has avoided seting up the opening of rectangular shape on MASK, has realized the vertical and horizontal connection of trompil on MASK, has avoided MASK not have transverse connection and lead to the problem of drooping easily in opening both sides, has also solved to avoid drooping to carry out the high problem of MASK cost of manufacture that special parameter design caused.

Description

Pixel structure of PMOLED screen body and PMOLED screen body
Technical Field
The present disclosure relates generally to organic electroluminescent devices, and more particularly to the field of PMOLED panels, and more particularly to a pixel structure of a PMOLED panel and a PMOLED panel.
Background
Through the development of the last thirty years, Organic Light Emitting devices (abbreviated as OLEDs for short) as the next generation display technology have the advantages of fast response, high contrast, planarization, etc., and have been applied to a certain extent in the display field.
The PMOLED color screen has been widely used in the fields of medical treatment, electronics, wearing products, household appliances and the like due to the rich colors.
The PMOLED color screen is usually implemented by three RGB side-by-side pixel arrays. By the scanning mode, the lighting of the single-point monochromatic/multi-color pixel is realized. Compared with an AMOLED, the PMOLED has high single-point scanning brightness, and causes high pixel defect or display failure probability; the size of a single pixel of the PMOLED color screen is smaller relative to the size of a pixel of a conventional monochrome screen. Therefore, the PMOLED color screen body has the problems of low yield, many defects, high manufacturing cost, difficulty in manufacturing vapor plating precision MASK and the like.
The PMOLED color screen has the following reasons of low yield and many defects: the PMOLED color screen body is driven in a scanning mode and is in single-point scanning, the brightness of the single-point scanning is high, and once one pixel point causes pixel defects due to particle particles in the manufacturing process, the display failure can be caused, so that the display failure probability is high.
The reason for the high cost of PMOLED color screens is: as shown in fig. 1, the conventional PMOLED color screen adopts a conventional RGB three-color pixel area side-by-side arrangement manner, pixels of the same color are continuously arranged in a certain direction, and an interval between each color pixel area is very small, so that a strip-shaped continuous opening is formed in the MASK to correspond to the pixel area of each color, as shown in fig. 2, the MASK lacks a support during the preparation process and is easy to deform, and a special parameter design is required to reduce the deformation during the preparation process, so that the manufacturing cost is increased.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a pixel structure of a PMOLED panel and a PMOLED panel. In a first aspect, the present application provides a pixel structure of a PMOLED panel, including a plurality of pixel units; the pixel unit comprises a first color pixel area and a second color pixel area, and the first color pixel area and the second color pixel area are discontinuously arranged in the longitudinal direction and/or the transverse direction.
According to the technical scheme provided by the embodiment of the application, the first color pixel area and the second color pixel area are different in light emitting color.
According to the technical scheme provided by the embodiment of the application, the first color pixel area and the second color pixel area have different light emitting colors, and the light emitting colors respectively correspond to one of yellow and blue.
According to the technical scheme provided by the embodiment of the application, the pixel unit further comprises a third color pixel area, and the first color pixel area and the third color pixel area are located above or below the second color pixel area side by side. According to the technical scheme provided by the embodiment of the application, the first color pixel area, the second color pixel area and the third color pixel area have different light emitting colors, and the light emitting colors respectively correspond to one of red, blue and green. According to the technical scheme provided by the embodiment of the application, the first color pixel area comprises at least 2 first color sub-pixel areas which are connected in parallel; the second color pixel region includes at least 2 second color sub-pixel regions connected in parallel.
According to the technical scheme provided by the embodiment of the application, the third color pixel area comprises at least 2 third color sub-pixel areas connected in parallel.
In a second aspect, the present application provides a PMOLED screen having any one of the pixel structures described above.
The utility model provides a pixel structure, two kinds of colour pixel district are arranged from top to bottom, perhaps two kinds of back and third kind colour pixel district are arranged from top to bottom side by side in three kinds of colour pixel district, be different from the shape of the rectangular shape open-ended MASK of adoption among the prior art, can adopt the MASK shape of interval trompil, the opening of seting up rectangular shape on MASK has been avoided, MASK's vertical and horizontal connection has been realized, MASK does not have transverse connection and leads to the problem of drooping easily in opening both sides, the problem that MASK cost of manufacture that special parameter design caused is carried out in order to avoid drooping has also been solved.
In addition, in the prior art, because the interval between each vertical row of pixel areas with the same color is very small, generally only a few micrometers, and because the interval of the precision cannot be achieved on the MASK, in the evaporation process, each vertical row of pixel areas with the same color can be integrally evaporated into a strip shape, and the interval between the upper and lower pixel areas with the same color is realized through the arrangement of the insulating layer at the bottom of the pixel areas, so that a large evaporation shadow (shadow) is formed between the pixel areas with the same color; in the technical scheme of the application, because there are other color pixels in the interval between the same pixel of every vertical row for the interval grow between the same pixel of two-phase can only be in the pixel district coating by vaporization, has solved the big problem in screen body coating by vaporization shadow (shadow) region.
In summary, according to the technical scheme of the application, the distribution of each color pixel area can be realized by forming holes on the whole MASK, and compared with the method for manufacturing the pixel area with the strip-shaped opening, the method for manufacturing the color pixel area has the advantages that the support can be increased by forming the independent pixel holes on the MASK, so that the MASK is not easy to deform in the manufacturing process, special manufacturing parameters are not required to be set, the manufacturing process is simpler, and the cost is lower; meanwhile, due to the distribution of the pixel structure, each pixel area can be further divided into a plurality of sub-pixels, when a certain sub-pixel is defective, the whole light-emitting effect is not influenced, and the product yield is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a pixel unit in a pixel structure of a PMOLED panel in the prior art;
FIG. 2 is a schematic diagram of a MASK structure of a PMOLED panel in the prior art;
fig. 3 is a schematic structural diagram of an embodiment of a pixel structure of a PMOLED panel according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a pixel structure of a PMOLED panel according to a second embodiment of the present application;
fig. 5 is a schematic structural diagram of a third embodiment of a pixel structure of a PMOLED panel according to a first embodiment of the present application;
FIG. 6 is a diagram illustrating the MASK corresponding to the pixel B in FIG. 3;
FIG. 7 is a diagram illustrating the MASK corresponding to the pixel R in FIG. 3;
fig. 8 is a schematic structural diagram of a screen pixel structure of a PMOLED screen in a second embodiment of the present application;
fig. 9 is a schematic structural diagram of a screen pixel structure of a PMOLED screen in a fourth embodiment of the present application;
fig. 10 is a schematic structural diagram of a screen pixel structure of a PMOLED screen in a fifth embodiment of the present application;
reference numbers in the figures: 10. a first color pixel region; 20. a second color pixel region; 30. a third color pixel region; 11. a first color sub-pixel region; 21. a second color sub-pixel region; 31. and a third color sub-pixel area.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The first embodiment is as follows:
as shown in fig. 3, the present application provides a pixel structure of a PMOLED panel, which includes a plurality of pixel units, where each pixel unit includes a first color pixel area 10, a second color pixel area 20, and a third color pixel area 30; the first color pixel area 10 and the second color pixel area 20 are located above the third color pixel area 30 side by side, and in other embodiments, the first color pixel area 10 may also be located below the third color pixel area 30; the upper part in the embodiment is only used for indicating the relative position of each color pixel area in the figure, and only indicates that the first color pixel areas are arranged side by side, and the upper part and the lower part can be arranged side by side, the left part and the right part can be arranged side by side, the upper part and the lower part can be arranged side by side, or the upper part and the lower part can be arranged side by side in an inclined way; not as an absolute limiting feature of the present solution; in other embodiments, such as when fig. 1 is rotated by 90 degrees, the first color pixel region 10 and the second color pixel region 20 are located on the left or right side of the third color pixel region 30.
In the present embodiment, the first color pixel region 10 is a red pixel region, denoted by R, which indicates that the light emission color of the first color pixel region 10 is red; the second color pixel region 20 is a green pixel region, denoted by G, indicating that the light emission color of the second color pixel region 20 is green; the third color pixel region 30 is a blue pixel region, denoted by B, indicating that the emission color of the third color pixel region 30 is blue; r and G are positioned above B side by side as shown in FIG. 3; in other embodiments, as shown in fig. 4, R and B may be located above G side by side, and in other embodiments, R and B may also be located below G side by side; or as shown in fig. 5, B and G are located side by side above R, and in other embodiments, B and G may also be located side by side below R.
FIG. 6 is a schematic diagram of a portion of the MASK corresponding to the pixel B in the pixel structure of FIG. 3, in which the shaded area is a shielding area and the opening is an evaporation area of the pixel B; FIG. 7 is a partial structure diagram of the MASK corresponding to the pixel R in the pixel structure of FIG. 3; as can be seen from fig. 6 and 7, the openings of the MASK are square holes, and the square holes are connected with each other in a crisscross manner, so that the MASK does not have the problem of sagging at the openings. As shown in fig. 2, a schematic view of a partial structure of a MASK corresponding to a pixel R in the prior art shows that, since the pitch of the vertically adjacent pixels R in fig. 1 is very small, which is only several micrometers, it is impossible to set a horizontal interval on the MASK to also distinguish the vertically adjacent pixels R, and only strip-shaped openings can be opened to evaporate the pixels R into a whole, and the vertically adjacent pixels R realize the interval through insulating regions located on a substrate; at this time, the MASK in fig. 2 has a problem of sagging at the elongated opening, and in order to solve the problem, special parameter design is often performed; in the technical scheme of the application, the problems do not exist, so corresponding measures are reduced, the cost of the MASK is reduced, and the manufacturing process of the MASK is simpler and lower in cost.
In the prior art, the pixels R adjacent up and down are spaced by the insulating region arranged on the substrate, and the pixels evaporated on the insulating region are evaporation shadow (shadow) regions, and the comparison shows that the evaporation shadow (shadow) regions in the prior art are more and the cumulative area is larger; in the technical scheme of the application, evaporation can be completely performed in the set pixel region, and an evaporation shadow (shadow) region is not formed.
Example two:
as shown in fig. 8, on the basis of the first embodiment, the first color pixel area 10 is composed of two parallel first color sub-pixel areas 11, and the second color pixel area 20 is composed of two parallel second color sub-pixel areas 21; the third color pixel region 30 is composed of four third color sub-pixel regions 31.
As shown in fig. 8, the formation of the sub-pixel region is achieved by: for example by two first color sub-pixel regions 11 being connected to a common connection region of a first color pixel by a connection strip, respectively, having a width L1The width of the first color sub-pixel region is L, L1Less than L, and the smaller the better, e.g. L1L/5, in this case, the parallel connection of the first color sub-pixel region and the second color sub-pixel region may be realized; in the figure, the direction of the arrow is the current direction, and even if one color sub-pixel region fails to display due to particles, the defect of the whole color pixel region is not caused in the embodiment; thereby effectively improving the yield of products.
In this embodiment, the MASK structure of fig. 6 and 7 is still used for vapor deposition of each color pixel region, and the sub-pixel regions of the same color are spaced by the insulating regions provided on the substrate.
Example three:
on the basis of the second embodiment, the first color pixel region 10 is set as three parallel first color sub-pixel regions 11; the second color pixel region 20 is provided with three second color sub-pixel regions 21 connected in parallel; the third color pixel region 30 is also provided as three parallel second color sub-pixel regions 31. In other embodiments, the number of sub-pixel regions of each color pixel region may be four or more, but the larger the number, the larger the evaporation shadow area, so 2 or 3 sub-pixel regions are preferable.
Example four:
as shown in fig. 9, red and green are combined into yellow in the present embodiment; that is, in the present embodiment, the pixel structure of the PMOLED panel includes the first color pixel regions 10 arranged above and below, as indicated by Y in the figure; and a second color pixel region 20, indicated as B in the figure; in other embodiments, the positions of Y and B may be interchanged. Like the embodiment, the MASK structure corresponding to the pixel structure of the embodiment may also be formed by opening holes.
Example five:
as shown in fig. 10, on the basis of the fourth embodiment, the first color pixel region 10 is also composed of two parallel first color sub-pixel regions 11; the second color pixel region 20 is also composed of two second color sub-pixel regions 21 connected in parallel; the direction of the arrows in the figure is the direction of current flow.
The pixel structure of the PMOLED in the prior art and the screen performance and cost of evaporating MASK of the first to fifth embodiments of the present application are shown in table 1 below:
experimental control results:
Figure BDA0002150783450000071
TABLE 1
As can be seen from the comparison results, compared with the technical scheme in the prior art, the cost of a single MASK is reduced by more than 50%; when the color sub-pixel area is arranged, the yield of the screen body can be improved by 15-20%.
Example six:
the present embodiment provides a PMOLED panel having the pixel structure of the first embodiment. In other embodiments, the PMOLED panel may also apply the pixel structure described in embodiment two, embodiment three, embodiment four, or embodiment five.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (6)

1. A pixel structure of a PMOLED screen body is characterized by comprising a plurality of pixel units; the pixel unit comprises a first color pixel area and a second color pixel area, and the first color pixel area and the second color pixel area are discontinuously arranged in the longitudinal direction and/or the transverse direction; the pixel unit further comprises a third color pixel area, and the first color pixel area and the second color pixel area are arranged right above or right below the third color pixel area side by side; the widths of the first color pixel area and the second color pixel area are both smaller than the pixel width of the third color pixel area.
2. The pixel structure of a PMOLED screen of claim 1, wherein the first and second color pixel regions are different emission colors.
3. The pixel structure of the PMOLED screen of claim 2, wherein the emission color of the first color pixel region and the second color pixel region is one of blue light and yellow light, respectively.
4. The pixel structure of the PMOLED screen according to claim 1, wherein the first, second and third color pixel regions have different emission colors, and the emission color corresponds to one of red, blue and green.
5. The pixel structure of a PMOLED screen according to any one of claims 1 to 4, wherein the first color pixel area comprises at least 2 first color sub-pixel areas connected in parallel; the second color pixel region comprises at least 2 second color sub-pixel regions connected in parallel; the third color pixel region includes at least 2 third color sub-pixel regions connected in parallel.
6. A PMOLED screen, characterized in that it has a pixel structure according to any one of claims 1 to 5.
CN201910700996.XA 2019-07-31 2019-07-31 Pixel structure of PMOLED screen body and PMOLED screen body Active CN110289303B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910700996.XA CN110289303B (en) 2019-07-31 2019-07-31 Pixel structure of PMOLED screen body and PMOLED screen body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910700996.XA CN110289303B (en) 2019-07-31 2019-07-31 Pixel structure of PMOLED screen body and PMOLED screen body

Publications (2)

Publication Number Publication Date
CN110289303A CN110289303A (en) 2019-09-27
CN110289303B true CN110289303B (en) 2021-08-10

Family

ID=68024405

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910700996.XA Active CN110289303B (en) 2019-07-31 2019-07-31 Pixel structure of PMOLED screen body and PMOLED screen body

Country Status (1)

Country Link
CN (1) CN110289303B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103123927A (en) * 2013-01-24 2013-05-29 昆山维信诺显示技术有限公司 Pixel structure for OLED display screen and metal mask thereof
CN107507926A (en) * 2017-08-30 2017-12-22 深圳市华星光电半导体显示技术有限公司 OLED pixel structure and its restorative procedure
US20190181191A1 (en) * 2017-04-28 2019-06-13 Kunshan Go-Visionox Opto-Electronics Co., Ltd. Pixel structure driving method
CN209071333U (en) * 2018-10-31 2019-07-05 云谷（固安）科技有限公司 Display screen and display terminal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103123927A (en) * 2013-01-24 2013-05-29 昆山维信诺显示技术有限公司 Pixel structure for OLED display screen and metal mask thereof
US20190181191A1 (en) * 2017-04-28 2019-06-13 Kunshan Go-Visionox Opto-Electronics Co., Ltd. Pixel structure driving method
CN107507926A (en) * 2017-08-30 2017-12-22 深圳市华星光电半导体显示技术有限公司 OLED pixel structure and its restorative procedure
CN209071333U (en) * 2018-10-31 2019-07-05 云谷（固安）科技有限公司 Display screen and display terminal

Also Published As

Publication number Publication date
CN110289303A (en) 2019-09-27

Similar Documents

Publication Publication Date Title
US10901314B2 (en) Pixel arrangement structure, organic light emitting device, display device and mask
US10411075B2 (en) Pixel array comprising half of regular hexagon shaped pixel, method for fabricating the same and OLED array substrate
CN109148543B (en) Pixel structure and display panel
US20180175121A1 (en) Pixel arrangement structure, organic light-emitting diode device, display device and mask
EP2950348B1 (en) Pixel structure for oled display screen
TWI585726B (en) Pixel structure
JP7005657B2 (en) Pixel structure and OLED display panel
US20150014662A1 (en) Method for pixel arrangement and display pannel using the same
WO2017118003A1 (en) Oled pixel array, method of manufacturing oled pixel array, and oled display panel and display device
CN104659064B (en) Organic light emitting diode display pixel arrangement structure and display device
CN107680990B (en) Pixel arrangement structure, pixel structure, manufacturing method and display method
CN203260585U (en) Pixel structure for OLED display screen, metal masking plate of pixel structure, and OLED display screen
CN110085624B (en) Pixel arrangement structure, display panel and mask plate assembly
WO2017016201A1 (en) Mask set, electroluminescent layer manufacturing method, display panel, and driving method
US20160254326A1 (en) Oled display substrate, oled display device, and mask
WO2022213581A1 (en) Display panel, display device, and mask
CN107240601B (en) Pixel array and manufacturing method thereof
CN103898441A (en) Matched mask plates and vapor deposition method thereof
CN109585508B (en) Pixel arrangement structure of display panel and display device
WO2016127308A1 (en) Display panel
CN110634909A (en) Display substrate, display panel and display device
CN107742638A (en) Pixel arrangement structure, organic electroluminescence device and display device
CN104425547A (en) Organic light emitting display and production method thereof
CN112133732B (en) Pixel structure and preparation method thereof
CN207705198U (en) Pixel arrangement structure, organic electroluminescence device and display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant