Light emitting display device including multi-portion spacer
A light emitting display device includes: a substrate; an anode on the substrate; a pixel defining layer having an opening overlapping the anode; an emission layer in the opening of the pixel defining layer; a spacer on the pixel defining layer and having a step; a cathode formed in the emission layer, the pixel defining layer, and the spacer; an encapsulation layer on the cathode; and a light blocking layer on the encapsulation layer, wherein the spacer includes a first portion and a second portion that is lower than the first portion and is integrally formed with the first portion, and the first portion and the second portion of the spacer overlaps the light blocking layer in a plan view.
1 . A light emitting display device comprising:
a substrate;
an anode on the substrate;
a pixel defining layer having an opening overlapping the anode;
an emission layer in the opening of the pixel defining layer;
a spacer on the pixel defining layer and having a step;
a cathode on the emission layer, the pixel defining layer, and the spacer;
an encapsulation layer on the cathode; and
a light blocking layer on the encapsulation layer,
wherein the spacer comprises a first portion and a second portion that is lower than the first portion and is integrally arranged with the first portion, and
the first portion and the second portion of the spacer overlap the light blocking layer in a plan view.
2 . The light emitting display device of claim 1 , wherein
the spacer is made of a transparent photosensitive polyimide (PSPI) or a positive-type photosensitive organic material, and
the pixel defining layer comprises a light blocking material, and is made of a negative-type black organic material.
3 . The light emitting display device of claim 1 , wherein the spacer comprises a separator with a concave groove structure.
4 . The light emitting display device of claim 3 , wherein
the concave groove structure of the separator of the spacer is arranged up to the pixel defining layer and the pixel defining layer comprises an additional separator.
5 . The light emitting display device of claim 3 , further comprising
a functional layer above the pixel defining layer and the spacer and below the cathode,
wherein the functional layer comprises a first functional layer between the anode and the emission layer and a second functional layer between the emission layer and the cathode, and
at least one of the first functional layer or the second functional layer is disconnected by the separator.
6 . The light emitting display device of claim 3 , wherein
the emission layer comprises a first emission layer and a second emission layer,
an intermediate connecting layer between the first emission layer and the second emission layer, and
a functional layer between the anode and the first emission layer,
wherein the functional layer is between the first emission layer and the intermediate connecting layer, between the intermediate connecting layer and the second emission layer, and/or between the second emission layer and the cathode, and
wherein a part of the functional layer is disconnected by the separator.
7 . The light emitting display device of claim 3 , wherein
the separator comprises an opening corresponding portion arranged along at least a part of the opening of the pixel defining layer.
8 . The light emitting display device of claim 7 , wherein
the separator further comprises an extension extending from the opening corresponding portion.
9 . The light emitting display device of claim 1 , wherein
the pixel defining layer comprises a separator with a concave groove structure.
10 . The light emitting display device of claim 9 , wherein
the spacer is inside the separator in a plan view, and the separator does not overlap the spacer in the plan view.
11 . The light emitting display device of claim 1 , further comprising:
a sensing insulating layer;
a sensing electrode on the encapsulation layer; and
a color filter and/or a reflection adjusting layer in an opening of the light blocking layer.
12 . A light emitting display device comprising
a main display area; and
a second component area corresponding to an optical element on a rear side,
wherein the second component area comprises
a unit pixel comprising a plurality of light emitting diodes,
a component spacer arranged among the plurality of light emitting diodes in the unit pixel, and
a light transmitting region around the unit pixel,
the component spacer has a T shape, and
the component spacer comprises a first portion and a second portion that is lower than the first portion and is integrally provided with the first portion.
13 . The light emitting display device of claim 12 , wherein
the unit pixel further comprises a pixel defining layer comprising a plurality of openings,
wherein the openings of the pixel defining layer correspond to the plurality of light emitting diodes included in the unit pixel, respectively, and
the component spacer is on the pixel defining layer.
14 . The light emitting display device of claim 13 , further comprising
a light blocking layer having openings overlapping the respective openings of the pixel defining layer,
wherein the entire component spacer overlaps the light blocking layer in a plan view.
15 . The light emitting display device of claim 14 , wherein
the component spacer is made of a photosensitive polyimide (PSPI) or a positive-type photosensitive organic material, and
the pixel defining layer comprises a light blocking material and is made of a negative-type black organic material.
16 . The light emitting display device of claim 12 , wherein
the unit pixel comprises three light emitting diodes, the three light emitting diodes comprising:
a first light emitting diode is left of the second and third light emitting diodes in a length direction of the unit pixel; and
a second light emitting diode and a third light emitting diode, wherein the second light emitting diode is above the third light emitting diode and the second light emitting diode and the third light emitting diode are right of the first light emitting diode in the length direction.
17 . The light emitting display device of claim 16 , wherein
the component spacer is arranged among the first to third light emitting diodes, and the component spacer has a T shape rotated by 90 degrees in a counterclockwise direction.
18 . The light emitting display device of claim 17 , wherein
the first portion of the component spacer has a T shape rotated by 90 degrees in the counterclockwise direction.
19 . The light emitting display device of claim 18 , wherein
the second portion of the component spacer is on respective sides of the first portion.
20 . The light emitting display device of claim 19 , wherein
ends of the first portion and the second portion of the component spacer correspond to each other.