Light emitting display device and manufacturing method thereof
A light emitting display device and its manufacturing method are presented. The device includes: a substrate; a pixel circuit unit positioned on the substrate; a light emitting diode (LED) electrically connected to the pixel circuit unit; an encapsulation layer covering the pixel circuit unit and the light emitting diode (LED); a light blocking layer disposed on the encapsulation layer and having a first opening, a second opening, and a third opening; a first color filter including a main part in the first opening and an overlapping part connecting adjacent main parts and covering the light blocking layer; a second color filter in the second opening; and a third color filter in the third opening.
1 . A light emitting display device comprising:
a substrate;
a pixel circuit unit positioned on the substrate;
a light emitting diode (LED) electrically connected to the pixel circuit unit;
an encapsulation layer covering the pixel circuit unit and the light emitting diode (LED);
a light blocking layer disposed on the encapsulation layer and having a first opening, a second opening, and a third opening;
a first color filter including a main part in the first opening, and a first overlapping part separated from the main part of the first color filter and covering the light blocking layer;
a second color filter in the second opening; and
a third color filter in the third opening,
wherein the first overlapping part of the first color filter, which is disposed between the second color filter and the third color filter and is not disposed in the first opening, has a first side contacting the second color filter and a second side contacting the third color filter, and
all portions of the first overlapping part of the first color filter overlap the light blocking layer in a plan view.
2 . The light emitting display device of claim 1 , wherein the first color filter further includes a second overlapping part which is connected to the main part of the first color filter and covers the light blocking layer.
3 . The light emitting display device of claim 1 , wherein
the first color filter has a color filter opening aligned with the second opening and the third opening.
4 . The light emitting display device of claim 3 , wherein
the color filter opening of the first color filter aligns with the second opening and the third opening of the light blocking layer, and the second opening and the third opening are smaller than the color filter opening of the first color filter in plan view.
5 . The light emitting display device of claim 4 , wherein
the light emitting diode (LED) includes an anode, an emission layer, and a cathode, and
a black pixel defining layer including a light blocking material, covering an edge of the anode and having an opening aligned with the anode.
6 . The light emitting display device of claim 5 , wherein
the opening of the black pixel defining layer is aligned with the first opening, the second opening, and the third opening of the light blocking layer, and
the opening of the black pixel defining layer is smaller than the first opening, the second opening, and the third opening in plan view.
7 . The light emitting display device of claim 6 , wherein
the second color filter, the third color filter, the first opening, the second opening, and the third opening of the light blocking layer, the color filter opening of the first color filter, and the opening of the black pixel defining layer have the same shape in plan view, or a chamfered version of the same shape.
8 . The light emitting display device of claim 7 , further comprising
a detecting electrode aligned with the light blocking layer and the first overlapping part.
9 . The light emitting display device of claim 7 , further comprising:
a photosensor area through which light can pass, and
an additional opening formed in the first color filter, the light blocking layer, and the black pixel defining layer in the photosensor area.
10 . The light emitting display device of claim 9 , wherein
the additional opening of the first color filter positioned in the photosensor area is integrally formed with the adjacent color filter opening.
11 . The light emitting display device of claim 10 , wherein
three color filter openings positioned adjacent to the photosensor area and two additional openings of the first color filter are integrally formed.
12 . The light emitting display device of claim 10 , wherein
the additional opening of the light blocking layer is aligned with and smaller than the additional opening of the first color filter in plan view, and
the additional opening of the black pixel defining layer is aligned with and smaller than the additional opening of the light blocking layer in plan view.
13 . The light emitting display device of claim 9 , further comprising
a detecting electrode aligned with the light blocking layer and the first overlapping part.
14 . The light emitting display device of claim 9 , further comprising a component area positioned at the periphery of the photosensor area and having a light transmitting area.
15 . The light emitting display device of claim 14 , wherein
there is a plurality of photosensor areas.
16 . The light emitting display device of claim 5 , further comprising
a spacer positioned on the black pixel defining layer and having a step.
17 . The light emitting display device of claim 1 , wherein
the second color filter and the third color filter are formed by an inkjet method.
18 . An electronic apparatus comprising:
a light emitting display device including a substrate, a pixel circuit unit positioned on the substrate, a light emitting diode (LED) electrically connected to the pixel circuit unit, and an encapsulation layer covering the pixel circuit unit and the light emitting diode (LED); and
a control module controlling an operation of the light emitting display device,
wherein the light emitting display device further includes:
a light blocking layer disposed on the encapsulation layer and having a first opening, a second opening, and a third opening;
a first color filter including a main part in the first opening, and an overlapping part separated from the main part of the first color filter and covering the light blocking layer;
a second color filter in the second opening; and
a third color filter in the third opening, and
wherein the overlapping part of the first color filter, which is disposed between the second color filter and the third color filter and is not disposed in the first opening, has a first side contacting the second color filter and a second side contacting the third color filter, and
all portions of the first overlapping part of the first color filter overlap the light blocking layer in a plan view.