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US 10,770,515 B2Granted
Display device including color filters
AssigneeLG Display Co., Ltd.
InventorsJongSung Kim, Ho-Jin Kim, SeungMin Baik
Life of this patent
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Abstract
A display can include a plurality of pixels including a first pixel, a second pixel and a third pixel; a first color filter overlapping the first and second pixels; a second color filter overlapping the first and third pixels; and a third color filter overlapping the second and third pixels.
Claims19
A display device comprising:
- a plurality of pixels including a first pixel, a second pixel and a third pixel, wherein each of the first to third pixels includes:
- a thin film transistor layer disposed on a first substrate,
- a first electrode connected to the thin film transistor layer,
- an organic light emitting layer disposed on the first electrode, and
- a second electrode disposed on the organic light emitting layer;
- an encapsulation film disposed on the second electrode and covering the second electrode;
- a color filter layer disposed on the encapsulation film, wherein the color filter layer includes:
- a first color filter overlapping the first and second pixels,
- a second color filter overlapping the first and third pixels,
- a third color filter overlapping the second and third pixels, and
- an overcoat layer disposed on the first, second and third color filters;
- a second substrate disposed on the overcoat layer;
- a bank disposed between two adjacent pixels among the first, second and third pixels;
- and
- a protrusion including overlapping portions of the first, second and third color filters, the protrusion extending away from the encapsulation film in a direction toward the overcoat layer,
- wherein the encapsulation film contacts at least two of the first, second and third color filters,
- wherein a center of the protrusion overlaps with the bank and the thin film transistor,
- wherein the bank is disposed between the protrusion and the thin film transistor, and
- wherein a gate electrode of the thin film transistor overlaps with both of the bank and the protrusion.
16 more elements
An organic light emitting display device comprising:
- a unit pixel including a red subpixel, a green subpixel and a blue subpixel, wherein each of the red, green and blue subpixels includes:
- a thin film transistor layer disposed on a first substrate,
- a first electrode connected to the thin film transistor layer,
- an organic light emitting layer disposed on the first electrode, and
- a second electrode disposed on the organic light emitting layer;
- an encapsulation film disposed on the second electrode and covering the second electrode;
- a color filter layer disposed on the encapsulation film, wherein the color filter layer includes:
- a first color filter extending across the red and green subpixels and configured to pass a first light transmissive wavelength range including red light and a second light transmissive wavelength range including green light,
- a second color filter overlapping with the red and blue subpixels, and configured to pass a third light transmissive wavelength range including red light and a fourth light transmissive wavelength range including blue light,
- a third color filter extending across the green and blue subpixels and configured to pass a fifth light transmissive wavelength range including green light and a sixth light transmissive wavelength range including blue light, and
- an overcoat layer disposed on the first, second and third color filters;
- a second substrate disposed on the overcoat layer;
- a bank disposed between two adjacent pixels among the first, second and third pixels;
- and
- a protrusion including overlapping portions of the first, second and third color filters, the protrusion extending away from the encapsulation film in a direction toward the overcoat layer,
- wherein the encapsulation film contacts at least two of the first, second and third color filters,
- wherein a center of the protrusion overlaps with the bank and the thin film transistor,
- wherein the bank is disposed between the protrusion and the thin film transistor, and
- wherein a gate electrode of the thin film transistor overlaps with both of the bank and the protrusion.
16 more elements
A display device comprising:
- a unit pixel including a red subpixel, a green subpixel and a blue subpixel, wherein each of the red, green and blue subpixels includes:
- a thin film transistor layer disposed on a first substrate,
- a first electrode connected to the thin film transistor layer,
- an organic light emitting layer disposed on the first electrode, and
- a second electrode disposed on the organic light emitting layer,
- an encapsulation film disposed on the second electrode and covering the second electrode;
- a color filter layer disposed on the encapsulation film, wherein the color filter layer includes:
- a first color filter extending across the red and green subpixels and configured to pass a first light transmissive wavelength range including red light and a second light transmissive wavelength range including green light,
- a second color filter overlapping with the red and blue subpixels, and configured to pass a third light transmissive wavelength range including red light and a fourth light transmissive wavelength range including blue light,
- a third color filter extending across the green and blue subpixels and configured to pass a fifth light transmissive wavelength range including green light and a sixth light transmissive wavelength range including blue light, and
- an overcoat layer disposed on the first, second and third color filters;
- a second substrate disposed on the overcoat layer;
- a bank disposed between two adjacent pixels among the first, second and third pixels;
- and
- a protrusion including overlapping portions of the first, second and third color filters, the protrusion extending away from the encapsulation film in a direction toward the overcoat layer,
- wherein the encapsulation film contacts at least two of the first, second and third color filters,
- wherein a first overlapping portion where the first color filter overlaps with the second color filter is disposed in the red subpixel and the first overlapping portion is configured to block light within the second, fourth, fifth and sixth light transmissive wavelength ranges,
- wherein a second overlapping portion where the first color filter overlaps with the third color filter is disposed in the green subpixel and the second overlapping portion is configured to block light within the first, third, fourth and sixth light transmissive wavelength ranges,
- wherein a third overlapping portion where the second color filter overlaps with the third color filter is disposed in the blue subpixel and the third overlapping portion is configured to block light within the first, second, third and fifth transmissive wavelength ranges,
- wherein a center of the protrusion overlaps with the bank and the thin film transistor,
- wherein the bank is disposed between the protrusion and the thin film transistor, and
- wherein a gate electrode of the thin film transistor overlaps with both of the bank and the protrusion.
19 more elements
Dependencies are inferred from the claim text.