Display device
View Patent ↗A display device is provided. The display device includes a substrate, a light blocking member formed on the substrate as a plurality of light blocking portions separated from each other, a thin film transistor including a gate line, a data line, and a semiconductor layer formed on the light blocking member, a plurality of color filters formed on the gate line, the data line, and the thin film transistor, a pixel electrode formed on the color filters and connected to the thin film transistor, and a light blocking filter covering a portion of a separation region separating the light blocking portions.
1. A display device, comprising:
a substrate;
a light blocking member disposed on the substrate and comprising a plurality of light blocking portions separated from each other in a top view;
an insulation layer disposed on the light blocking member;
a gate line and a data line disposed on the insulation layer;
a thin film transistor comprising a semiconductor layer and disposed on the substrate;
a plurality of color filters disposed on the substrate;
a pixel electrode connected to the thin film transistor; and
a light blocking filter covering a portion of a separation region separating the light blocking portions,
wherein the separation region comprises a first portion corresponding to the semiconductor layer, a second portion corresponding to the color filter, and a third portion corresponding to a space between the light blocking portions.
2. The display device of claim 1 , wherein
the light blocking filter covers the first portion.
3. The display device of claim 1 , wherein
the light blocking filter covers the third portion.
4. The display device of claim 1 , wherein
the color filter covers the second portion.
5. The display device of claim 1 , wherein
the semiconductor layer comprises polysilicon.
6. The display device of claim 1 , wherein
the color filter comprises red, green, and blue color filters, and the light blocking filter comprises at least one of the red, green, and blue color filters.
7. The display device of claim 6 , wherein
the light blocking filter comprises at least two different color filters among the red, green, and blue color filters that are overlapped with each other.
8. The display device of claim 6 , wherein
the light blocking filter comprises the blue color filter.
9. The display device of claim 6 , wherein
the plurality of color filters are separated from each other per each pixel.
10. The display device of claim 1 , further comprising
an organic emission layer disposed on the pixel electrode and a common electrode disposed on the organic emission layer.
11. The display device of claim 10 , wherein
the organic emission layer comprises a white emission layer.
12. The display device of claim 10 , wherein
the common electrode comprises a reflective metal.
13. The display device of claim 1 , wherein
the light blocking member overlaps a portion of the data line or the gate line.
14. The display device of claim 1 , wherein the thin film transistor comprises:
a first thin film transistor comprising a first gate electrode connected to the gate line, a first source electrode connected to the data line, and a first drain electrode; and
a second thin film transistor comprising a second gate electrode connected to the first drain electrode, a second source electrode connected to a power voltage, and a second drain electrode connected to the pixel electrode.
15. The display device of claim 1 , wherein the plurality of light blocking portions is disposed in the same layer.
16. A display device, comprising:
a substrate;
a light blocking member disposed on the substrate, and comprising a plurality of light blocking portions separated from each other;
a first insulating layer covering the light blocking member;
a semiconductor layer disposed on the first insulating layer;
a second insulating layer covering the semiconductor layer;
a gate electrode disposed on the second insulating layer and disposed at a position corresponding to the semiconductor layer;
a third insulating layer covering the gate electrode;
a source electrode and a drain electrode disposed on the third insulating layer and connected to the semiconductor layer through contact holes of the third insulating layer and the second insulating layer;
a color filter disposed on the third insulating layer;
a light blocking filter disposed on the third insulating layer, and covering a portion of a separation region separating the light blocking portions;
a fourth insulating layer covering the color filter and the light blocking filter; and
a pixel electrode disposed on the fourth insulating layer, and connected to the drain electrode through a contact hole passing through at least the fourth insulating layer.
17. The display device of claim 16 , wherein
the separation region comprises a first portion corresponding to the semiconductor layer, a second portion corresponding to the color filter and a third portion corresponding to a space between the light blocking portions.
18. The display device of claim 17 , wherein
the light blocking filter covers the first portion and the third portion.
19. The display device of claim 16 , further comprising:
a partition disposed on the fourth insulating layer and defining an emitting region enclosing edges of the pixel electrode;
an emission layer disposed on the pixel electrode; and
a common electrode disposed on the emission layer.
20. The display device of claim 16 , wherein
the color filter comprises red, green, and blue color filters, and the light blocking filter comprises at least one of the red, green, and blue color filters.