CN110071158B - Mask and organic light-emitting display panel - Google Patents
Mask and organic light-emitting display panel Download PDFInfo
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- CN110071158B CN110071158B CN201910357155.3A CN201910357155A CN110071158B CN 110071158 B CN110071158 B CN 110071158B CN 201910357155 A CN201910357155 A CN 201910357155A CN 110071158 B CN110071158 B CN 110071158B
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- 230000000873 masking effect Effects 0.000 claims abstract description 16
- 125000006850 spacer group Chemical group 0.000 claims description 31
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 22
- 230000000737 periodic effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
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- 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
- H10K59/12—Active-matrix OLED [AMOLED] displays
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Abstract
The embodiment of the invention discloses a mask and an organic light-emitting display panel, wherein the mask is used for preparing a common electrode of the organic light-emitting display panel, the organic light-emitting display panel comprises a plurality of light-emitting units and a plurality of spacing columns positioned between the adjacent light-emitting units, and the mask comprises: a mask body; a common electrode opening on the mask version body; the common electrode opening correspondingly exposes the common electrode; the shielding strips are positioned in the openings of the common electrodes, and one ends of the shielding strips are connected with the mask version body; when the mask plate is used for masking, the orthographic projection of each shielding strip on the organic light-emitting display panel covers the plurality of spacing columns. The embodiment of the invention can eliminate rainbow stripes on the organic light-emitting display panel, is beneficial to providing the display effect of the organic light-emitting display panel and improves the use experience of users.
Description
Technical Field
The embodiment of the invention relates to a display technology, in particular to a mask and an organic light-emitting display panel.
Background
In recent years, Organic Light-Emitting Diode (OLED) display panels have become hot and popular flat panel displays, and have been widely used in various flat panel display products due to advantages of self-luminescence, wide viewing angle, fast response time, high Light-Emitting efficiency, low operating voltage, thin panel thickness, flexible panel fabrication, and simple process.
The conventional OLED display panel includes a plurality of organic light emitting units as display pixels to display a picture. Each organic light-emitting unit is composed of two electrode layers and a light-emitting layer located between the two electrode layers, and the two electrode layers and the light-emitting layer are stacked on a substrate. In order to reduce the manufacturing process and simplify the driving method, a common electrode is generally formed in the OLED display panel, and an electrode signal is provided to each organic light emitting unit through the common electrode. The common electrode in the OLED display panel is usually formed after the spacers between the organic light emitting units, and the common electrode covers the spacers. The common electrode generally has certain reflection capacity, and the spacing column structures arranged in the array enable the common electrode to form a grating structure with a fixed period, so that external light is regularly reflected, rainbow patterns are easily formed on the display panel at the moment, display pictures are interfered, and the display effect of the display panel is influenced.
Disclosure of Invention
The invention provides a mask and an organic light-emitting display panel, which are used for improving the display effect of rainbow stripes on the organic light-emitting display panel and improving the user experience. .
In a first aspect, an embodiment of the present invention provides a mask for preparing a common electrode of an organic light emitting display panel, where the organic light emitting display panel includes a plurality of light emitting units and a plurality of spacers located between adjacent light emitting units, and the mask includes:
a mask body;
a common electrode opening on the mask version body; the common electrode opening correspondingly exposes the common electrode;
the shielding strips are positioned in the openings of the common electrodes, and one ends of the shielding strips are connected with the mask version body; when the mask plate is used for masking, the orthographic projection of each shielding strip on the organic light-emitting display panel covers the plurality of spacing columns.
In a second aspect, an embodiment of the present invention further provides an organic light emitting display panel, where the organic light emitting display panel includes a common electrode, and the common electrode is prepared by using the mask according to any one of the first aspect.
According to the mask and the organic light-emitting display panel provided by the embodiment of the invention, the plurality of shielding strips are arranged in the opening of the common electrode of the mask, when the organic light-emitting display panel forms the common electrode, the shielding strips shield the spacing columns, so that the common electrode cannot be formed on the spacing columns in the organic light-emitting display panel, the spacing columns arranged in an array and the common electrode covered on the spacing columns can be prevented from forming a reflection grating structure, and the periodic reflection of the spacing columns to the external light is reduced. The mask and the organic light-emitting display panel provided by the embodiment of the invention can eliminate rainbow stripes on the organic light-emitting display panel, are favorable for providing the display effect of the organic light-emitting display panel, and improve the use experience of users.
Drawings
Fig. 1 is a schematic structural view of a related art organic light emitting display panel;
FIG. 2 is a schematic cross-sectional view along AA' of the OLED panel shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a mask according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an organic light emitting display panel masked by a mask shown in FIG. 3;
FIG. 5 is a schematic cross-sectional view along BB' shown in FIG. 4;
FIG. 6 is a schematic diagram of another mask structure provided in the embodiment of the present invention;
FIG. 7 is a schematic structural diagram of another mask provided in an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of another mask provided in an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of another mask provided in an embodiment of the present invention;
FIG. 10 is a schematic diagram of a mask structure according to another embodiment of the present invention;
fig. 11 is a schematic structural view of a masked organic light emitting display panel using the mask shown in fig. 10;
FIG. 12 is a schematic cross-sectional view taken along line CC' of FIG. 11;
FIG. 13 is a schematic structural diagram of another mask provided in an embodiment of the present invention;
FIG. 14 is an enlarged view of a portion of the dotted circle of FIG. 11;
fig. 15 is a top view of the organic light emitting display panel shown in fig. 5;
fig. 16 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention;
fig. 18 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a prior art organic light emitting display panel, fig. 2 is a schematic structural diagram of a cross-section along AA' of the organic light emitting display panel shown in fig. 1, and referring to fig. 1 and fig. 2, in the prior art organic light emitting display panel, an organic light emitting array is generally composed of a plurality of organic light emitting units 11, wherein adjacent organic light emitting units 11 are separated by a pixel defining structure 13, and a spacer 14 is formed on the pixel defining structure 13 for supporting a cover plate (not shown) of the organic light emitting display panel, and a common electrode 12 is commonly used in the organic light emitting array, and generally the common electrode 12 covers the organic light emitting unit array, and as shown in fig. 2, the common electrode 12 covers not only each organic light emitting unit 11, but also the spacer 14. Obviously, the spacing pillars 14 arranged in the same array form a periodic grating structure due to the difference between the height and the organic light emitting unit 11, and the common electrode 12 has a certain light reflection capability, so that the grating structure periodically reflects the external light, and the organic light emitting panel easily reflects the external light during use to generate rainbow stripes, which affect the display of the organic light emitting display panel.
In view of the foregoing problems, an embodiment of the present invention provides a mask for preparing a common electrode of an organic light emitting display panel, where the organic light emitting display panel includes a plurality of light emitting units and a plurality of spacers located between adjacent light emitting units, and the mask includes: a mask body; a common electrode opening on the mask version body; the common electrode opening correspondingly exposes the common electrode; the shielding strips are positioned in the openings of the common electrodes, and one ends of the shielding strips are connected with the mask version body; when the mask plate is used for masking, the orthographic projection of each shielding strip on the organic light-emitting display panel covers the plurality of spacing columns.
The existing common electrode mask is generally provided with a common electrode opening on a mask body, and the common electrode opening can cover the area where the organic light emitting unit array in the organic light emitting panel is located when the mask is used for masking, wherein the common electrode opening includes spacing columns between the organic light emitting units. In the mask provided by the embodiment of the invention, the plurality of shielding strips are also arranged in the openings of the common electrodes, and the shielding strips are used for shielding the spacing columns in the organic light-emitting display panel during masking, so that the common electrodes cannot be formed on the shielded spacing columns, the spacing columns arranged in an array and the common electrodes covered on the spacing columns can be prevented from forming a reflection grating structure, and rainbow stripes of the organic light-emitting display panel are eliminated.
According to the mask provided by the embodiment of the invention, the plurality of shielding strips are arranged in the opening of the common electrode of the mask, when the organic light-emitting display panel forms the common electrode, the shielding strips shield the spacing columns, so that the common electrode cannot be formed on the spacing columns, the spacing columns arranged in an array and the common electrode covered on the spacing columns can be prevented from forming a reflection grating structure, and the periodic reflection of the spacing columns to the external light is reduced. The mask provided by the embodiment of the invention can eliminate rainbow stripes on the organic light-emitting display panel, is beneficial to providing the display effect of the organic light-emitting display panel and improves the use experience of users.
The foregoing is the central idea of the present invention, and the mask provided by the present invention is exemplified by the following specific embodiments. Fig. 3 is a schematic structural diagram of a mask according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of an organic light emitting display panel masked by the mask shown in fig. 3, fig. 5 is a schematic structural diagram of a cross section along BB' shown in fig. 4, referring to fig. 3-5, the mask includes a mask body 20; a common electrode opening 21 located on the mask body 20; the common electrode opening 21 correspondingly exposes the common electrode 12; a plurality of shielding bars 22 located in the common electrode opening 21, wherein one end of each shielding bar 22 is connected with the mask body 20; when the mask 200 is used for masking, the orthographic projection of each shielding bar 22 on the organic light-emitting display panel 100 covers a plurality of the spacing columns 14.
The mask body 20 can be made of materials with high rigidity, such as metal, and the shielding strips 22 in the mask are used for shielding the spacing columns 14 in the organic light-emitting display panel 100, when the mask forms a common electrode, a material source of the common electrode is usually located below, the mask is located between the material source and the organic light-emitting display panel to be completed, through shielding of the shielding strips 22, patterns of the common electrode 12 formed in the organic light-emitting display panel 100 are complementary with the patterns of the mask 200, and the common electrode 12 still covers all the organic light-emitting units 11, so that a normal organic light-emitting unit driving display function can be realized. Fig. 6 is a schematic view of another mask structure according to an embodiment of the present invention, and referring to fig. 6, in addition to the mask structure shown in fig. 3, the masking strips 22 may be alternately disposed on one side of the mask body 20, so as to average the supporting force on the two sides of the mask body 20, and avoid the requirement on the rigidity of the mask body 20 at the connection position being too high when the connection end of the masking strip 22 and the mask body 20 is disposed on the same side of the mask body 20.
With continued reference to fig. 3-6, a plurality of the shielding bars 22 may be disposed in parallel, and when the mask 200 masks, an orthogonal projection of each shielding bar 22 on the organic light emitting display panel 100 covers at least two of the spacers 14; and the common electrodes 12 of each of the barrier ribs 22 at both sides of the orthographic projection on the organic light emitting display panel 100 are electrically connected. The shielding bars 22 are arranged appropriately so that the common electrodes 12 are connected to each other in the formed common electrode pattern, and the common electrodes 12 are not divided by the shielding bars 22. The shielding strip 22 is disposed in a manner that the shielding strip 22 is not directly connected to each other, and there may only be one connection between the shielding strip 22 and the mask body 20.
Fig. 7 is a schematic structural view of another mask according to an embodiment of the present invention, referring to fig. 7, in which a plurality of the shielding bars 22 includes a plurality of first shielding bars 221 and a plurality of second shielding bars 222; the reticle body 20 includes opposing first and second sides 201, 202; the plurality of first shielding bars 221 are connected to the first side 201; a plurality of the second shutter bars 222 are connected to the second side 202; a gap is formed between the first shielding bar 221 and the second shielding bar 222 along a direction in which the first shielding bar 221 or the second shielding bar 222 extends.
Considering that the shielding strip 22 has a certain weight, the shielding strip 22 may be deformed due to dropping during actual use. In the mask shown in fig. 7, since the shielding bar 20 is divided into the first shielding bar 221 connected to the first side edge 201 and the second shielding bar 222 connected to the second side edge 202, and one first shielding bar 221 and one second shielding bar 222 extend in the same direction, compared with the mask shown in fig. 3 and 6, the first shielding bar 221 and one second shielding bar 222 can shield the spacer pillars arranged on the same row or the same column in the organic display panel, thereby reducing the weight of one shielding bar and reducing the requirement of the mask body 20 on the supporting force of one shielding bar 22. In addition, a gap exists between the first shielding bar 221 and the second shielding bar 222 in the extending direction, so that the common electrodes formed by the mask can be ensured to be communicated with each other, and the effect of loading each organic light-emitting unit can be achieved only by introducing a common electrode signal.
When designing the mask, the shielding strips in the mask structure can be selectively arranged to meet the requirement that when the mask is designed, the shielding strips are in the organic light-emitting display panel, and the orthographic projection of the shielding strips covers all the spacing columns. As shown in fig. 3, 6 and 7, the shielding bars can shield all the spacers, and at this time, it can be ensured that no common electrode is formed on all the spacers, thereby eliminating the phenomenon of rainbow stripes. And because the whole shielding spacing columns need to be provided with more shielding strips, when the mask version body is connected with more shielding strips, the rigidity requirement of the mask version body is increased. Therefore, in addition to the above-mentioned mask structure adopting the whole shielding scheme, the embodiment of the present invention further provides a mask, and fig. 8 is a schematic structural view of another mask provided in the embodiment of the present invention, referring to fig. 8, in the mask, the structure extends along a direction perpendicular to the shielding strip 20In the direction of (1), a hollow gap 23 is arranged at intervals of a preset number of the shielding strips 22; when the mask plate is used for masking, the hollow gaps 23 expose the spacing columns; the distance L between the adjacent hollow gaps 23 is larger than 10 of the wavelength of visible light3And (4) doubling.
By providing the hollowed-out gap 23 instead of the shielding strips 22, the number of shielding strips 22 is reduced to a certain extent. The hollow gaps 23 can form the common electrode on the spacer exposed by the hollow gaps 23 when the common electrode is formed, but the distance between the adjacent hollow gaps 23 is greater than 10 of the visible light wavelength3The spacing between the spacers covered with the common electrode generated by the hollow-out gaps 23 is larger than 10 of the wavelength of visible light3Therefore, even if the spacing columns covering the common electrodes form a periodic grating structure, the periodic interval is larger than the wavelength of visible light, and the visible light is not reflected periodically, so that no color stripes appear on the organic light-emitting display panel prepared and formed finally. Specifically, within the pixel size (about 100 μm) range of the conventional organic display panel, the predetermined number may be greater than or equal to 50, that is, a hollow gap is set when every 50 barrier bars are spaced, and a common electrode is formed on a row of spacing pillars of every 50 rows of organic light emitting units on the organic light emitting display panel.
In addition, it should be noted that fig. 9 is a schematic structural diagram of another mask provided in the embodiment of the present invention, and referring to fig. 9, in addition to the above-mentioned shielding strips uniformly spaced by the same number to form a hollow gap, in this mask, a different number of shielding strips may be disposed between any two adjacent hollow gaps, that is, the distances L1, L2, and L3 between two adjacent hollow gaps are different. At this time, the spacing pillars formed by the hollow gaps and covering the common electrodes cannot form a periodic grating structure, so that periodic reflection of external visible light is avoided, and color stripes cannot be seen on the organic light-emitting display panel.
In the above embodiments, the shielding strips in the mask are all linear structures, and the shapes of the shielding strips are mainly determined by the arrangement manner of the spacers in the organic light emitting display panel to be manufactured, and also by the pixel arrangement manner of the organic light emitting display panel, except the arrangement manner of the pixels in the organic light emitting display panel shown in fig. 1, the pixel arrangement in the prior art is usually a staggered arrangement, for the organic light emitting display panel in the staggered arrangement, an embodiment of the present invention further provides a mask, fig. 10 is a schematic structural diagram of another mask provided in the embodiment of the present invention, fig. 11 is a schematic structural diagram of the organic light emitting display panel adopting the mask shown in fig. 10, fig. 12 is a schematic structural diagram of a cross section along CC shown in fig. 11, referring to fig. 10-12, the shielding strips in the mask are in a serpentine structure, the shielding strips in the serpentine structure can shield the spacers in the organic light emitting display panel in the staggered arrangement, the common electrode can not be formed on the interval pillars which are arranged in a staggered way, so that the periodic reflection of the external visible light can not be generated.
Referring to fig. 13, a hollow gap may be disposed in the mask at intervals of a predetermined number of shielding strips of the serpentine zigzag structure, that is, the periodic grating structure of the spacing pillars is destroyed by the hollow gap, so as to avoid periodic reflection of visible light.
Fig. 14 is a partial enlarged view of a dotted line shown in fig. 11, and referring to fig. 10 and 12, the organic light emitting display panel 100 includes a plurality of pixel defining structures 13, and the spacers 14 are positioned on the pixel defining structures 13; alternatively, in order to ensure that the shielding bar 22 affects the display function of the organic light emitting display panel 100, the shielding bar 22 may be disposed in a direction perpendicular to the extending direction of the shielding bar 22, and the length D1 of the shielding bar 22 is less than or equal to the length D2 of the pixel defining structure 13 of the organic light emitting display panel 10.
Further, referring to fig. 12, in order to ensure effective shielding of the spacers 14 and to avoid errors in mask alignment of the reticle 200, the shielding bars 22 may be arranged in a direction perpendicular to the extending direction of the shielding bars 22, and the difference between the length D1 of the shielding bars 22 and the length D3 of the spacers 14 is 1-5 μm.
The embodiment of the invention also provides an organic light-emitting display panel, which comprises a common electrode, wherein the common electrode is prepared by adopting any one mask provided by the embodiment of the invention. Since the common electrode in the organic light emitting display panel is prepared by using the mask of the above embodiment, the organic light emitting display panel has the beneficial effects of the mask provided by the above embodiment.
Specifically, fig. 15 is a top view of the organic light emitting display panel shown in fig. 5, and referring to fig. 5 and 15, in the organic light emitting display panel, the common electrode 12 includes a plurality of tear strips 120; each tear strip 120 exposes a plurality of the spacers 14.
Fig. 16 is a schematic structural view of another organic light emitting display panel according to an embodiment of the present invention, referring to fig. 7 and 16, in which a plurality of tear strips 120 includes a plurality of first tear strips 121 and a plurality of second tear strips 122; the common electrode 12 includes a first portion 123 and a second portion 124; a plurality of first tear strips 121 are located in the first portion 123; a second plurality of tear strips 122 are located in the second portion 124; in the direction in which the first tear strip 121 or the second tear strip 122 extends, there is a gap between the first tear strip 121 and the second tear strip 122.
Referring to fig. 15 and 16, in the preparation of an organic light emitting display panel through a mask, an orthogonal projection of a plurality of opening bars on the organic light emitting display panel may be provided to cover all of the spacers. At this time, all the spacing columns are covered by the opening strips of the common electrode in a projection mode, namely, no common electrode exists on all the spacing columns, so that the spacing columns cannot form a reflection period grating structure, rainbow stripes cannot be generated when the organic light-emitting display panel is used, and good use experience is achieved.
Further, in correspondence to fig. 8 or fig. 13, an organic light emitting display panel is further provided in an embodiment of the present invention, fig. 17 is a schematic structural diagram of another organic light emitting display panel provided in an embodiment of the present invention, and referring to fig. 17, in the organic light emitting display panel, a preset number of tear strips 120 are spaced in a direction perpendicular to an extending direction of the tear strips 120,a common electrode continuous region 125 is provided; the common electrode continuous region 125 covers a part of the spacer; the distance between adjacent continuous areas 125 of the common electrode is greater than 10 of the wavelength of visible light3And (4) doubling. Likewise, the number of tear strips 120 between adjacent common electrode continuous regions 125 should be greater than or equal to 50. Wherein the common electrode continuous region 125 in the common electrode 12 covers the plurality of spacers 14, but since the spacing between the spacers 14 covering the common electrode 12 is larger than 10 of the visible light wavelength3Therefore, even if the spacer 14 can form a periodic grating structure, the periodic grating structure cannot periodically reflect visible light, and thus rainbow stripes cannot be formed on the organic light emitting display panel.
Corresponding to the mask shown in fig. 9, an embodiment of the present invention further provides an organic light emitting display panel, which is manufactured using the mask shown in fig. 9, wherein the number of the tear strips between any adjacent continuous regions of the common electrode is different.
Fig. 18 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 18, corresponding to the mask shown in fig. 10, in the organic light emitting display panel according to the embodiment of the present invention, the shape of the opening strip 120 may be a serpentine shape in addition to a straight shape.
Further, with continued reference to fig. 11, 12 and 14, in the organic light emitting display panel 100, a plurality of pixel defining structures 13 are included, and the spacer pillars 14 are located on the pixel defining structures 13; the length D1 of the tear strip is less than or equal to the length D2 of the pixel defining structure 13 of the organic light emitting display panel 100 in a direction perpendicular to the extension direction of the tear strip. Likewise, the difference between the length D1 of the tear strip and the length D3 of the spacer 14 in the direction perpendicular to the direction of extension of the tear strip is 1-5 μm. By setting the length D1 of the tear strip to be less than or equal to the length D2 of the pixel defining structure, it can be ensured that the organic light emitting unit 11 is covered with the common electrode 12, thereby enabling to ensure normal driving light emission of the organic light emitting unit 11. Meanwhile, the difference value between the length D1 of the opening strip and the length D3 of the spacing column 14 is set to be within the range of 1-5 microns, the complete coverage of the spacing column by the opening strip can be guaranteed, even if a mask plate generates an error with the organic light-emitting display panel when a mask is aligned, the complete coverage of the spacing column can be achieved, a common electrode is not formed on the spacing column, and the rainbow texture phenomenon on the organic display panel is eliminated.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (17)
1. A mask for manufacturing a common electrode of an organic light emitting display panel including a plurality of light emitting cells and a plurality of spacers between adjacent light emitting cells, the mask comprising:
a mask body;
a common electrode opening on the mask version body; the common electrode opening correspondingly exposes the common electrode;
the shielding strips are positioned in the openings of the common electrodes, and one ends of the shielding strips are connected with the mask version body; when the mask plate is used for masking, the orthographic projection of each shielding strip on the organic light-emitting display panel covers at least two spacing columns;
the shielding strips are arranged in parallel, and the common electrodes at two sides of the orthographic projection of each shielding strip on the organic light-emitting display panel are electrically connected;
a hollow gap is formed between the shielding strips at intervals of a preset number in the direction perpendicular to the extending direction of the shielding strips; when the mask plate is used for masking, the hollow gaps expose the spacing columns;
the distance between the adjacent hollow gaps is greater than 10 of the wavelength of visible light3And (4) doubling.
2. The reticle of claim 1, wherein the plurality of shield bars comprises a plurality of first shield bars and a plurality of second shield bars;
the mask version body comprises a first side edge and a second side edge which are opposite;
the plurality of first shielding strips are connected with the first side edge; the plurality of second shielding strips are connected with the second side edges;
along the direction that first shelters from the strip or the second shelters from the strip extension, first shelters from the strip with the second shelters from and has the clearance between the strip.
3. The mask according to claim 1, wherein when the mask is used for masking, the orthographic projection of the plurality of the shielding bars on the organic light-emitting display panel covers all the spacing pillars.
4. The reticle of claim 1, wherein the predetermined number is greater than or equal to 50.
5. The mask according to claim 1, wherein the number of the masking strips between any adjacent hollowed-out gaps is different.
6. The reticle of claim 1, wherein the shape of the masking strip comprises a serpentine or linear shape.
7. The mask according to claim 1, wherein the organic light emitting display panel comprises a plurality of pixel defining structures, and the spacer pillars are located on the pixel defining structures;
in the direction perpendicular to the extending direction of the shielding strip, the length of the shielding strip is less than or equal to the length of the pixel defining structure of the organic light emitting display panel.
8. The reticle of claim 7, wherein a difference between a length of the masking strip and a length of the spacer pillars in a direction perpendicular to an extending direction of the masking strip is 1-5 μm.
9. An organic light-emitting display panel, which is characterized by comprising a common electrode, wherein the common electrode is prepared by using the mask plate according to any one of claims 1 to 8;
the common electrode comprises a plurality of tear strips;
each opening strip exposes a plurality of spacing columns;
a preset number of the opening strips are arranged at intervals along the direction vertical to the extension direction of the opening strips, and a common electrode continuous area is arranged; the common electrode continuous region covers part of the spacing column;
the distance between adjacent continuous areas of the common electrode is more than 10 of the wavelength of visible light3And (4) doubling.
10. The organic light-emitting display panel according to claim 9, wherein a plurality of the tear strips are arranged in parallel; and the orthographic projection of each opening strip on the organic light-emitting display panel covers at least two spacing columns; the common electrodes on two sides of the opening strip are electrically connected.
11. The organic light emitting display panel of claim 9, wherein the plurality of tear strips comprises a plurality of first tear strips and a plurality of second tear strips;
the common electrode includes a first portion and a second portion;
a plurality of first tear strips are located in the first portion; a plurality of second tear strips are located in the second portion;
a gap is provided between the first tear strip and the second tear strip in a direction in which the first tear strip or the second tear strip extends.
12. The organic light-emitting display panel according to claim 9, wherein an orthographic projection of a plurality of the tear strips on the organic light-emitting display panel covers all the spacers.
13. The organic light-emitting display panel according to claim 9, wherein the preset number is greater than or equal to 50.
14. The organic light emitting display panel of claim 9, wherein the number of the tear strips between any adjacent continuous regions of the common electrode is different.
15. The organic light emitting display panel of claim 9, wherein the shape of the tear strip comprises a serpentine or linear shape.
16. The organic light emitting display panel of claim 9, wherein the organic light emitting display panel comprises a plurality of pixel defining structures, the spacer pillars being located on the pixel defining structures;
the length of the opening strip is less than or equal to the length of the pixel defining structure of the organic light emitting display panel in a direction perpendicular to the extending direction of the opening strip.
17. The organic light emitting display panel according to claim 16, wherein a difference between a length of the tear strip and a length of the spacer in a direction perpendicular to an extending direction of the tear strip is 1-5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357155.3A CN110071158B (en) | 2019-04-29 | 2019-04-29 | Mask and organic light-emitting display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357155.3A CN110071158B (en) | 2019-04-29 | 2019-04-29 | Mask and organic light-emitting display panel |
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| CN110071158A CN110071158A (en) | 2019-07-30 |
| CN110071158B true CN110071158B (en) | 2021-08-31 |
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| CN201910357155.3A Active CN110071158B (en) | 2019-04-29 | 2019-04-29 | Mask and organic light-emitting display panel |
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| EP4068378A4 (en) * | 2019-11-29 | 2023-04-12 | BOE Technology Group Co., Ltd. | Display substrate and manufacturing method therefor, and display device |
| WO2021103010A1 (en) | 2019-11-29 | 2021-06-03 | 京东方科技集团股份有限公司 | Display substrate and display device |
| EP4068260A4 (en) | 2019-11-29 | 2022-12-07 | BOE Technology Group Co., Ltd. | Display substrate and display device |
| CN114679914B (en) | 2019-11-29 | 2023-06-30 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
| CN111048695B (en) * | 2019-12-17 | 2022-10-21 | 武汉天马微电子有限公司 | Display panel and display device |
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Effective date of registration: 20211102 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |