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US 11,056,667 B2Granted
Display device
AssigneeSamsung Display Co., Ltd.
InventorsJung Ho Choi, Nam Su Kang, Yi Seul Kim, Heung Su Park, Hyun Shik Lee, Heun Seung Lee, Jae Hoon Hwang
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Abstract
A display device includes: a first base substrate which comprises a plurality of pixels; a pixel electrode on the first base substrate in each of the pixels and comprises a reflective film; an organic layer on the pixel electrode; and a common electrode on the organic layer, wherein the pixel electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm.
Claims21
A display device comprising:
- a first base substrate which comprises a plurality of pixels;
- a first electrode on the first base substrate in each of the pixels and comprising a reflective film;
- a light emitting layer on the first electrode;
- and
- a second electrode on the light emitting layer,
- wherein the first electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm, wherein the light emitting layer is configured to emit light in the first wavelength range.
3 more elements
A display device comprising:
- a first base substrate which comprises a plurality of pixels;
- a first conductive layer which comprises a drain electrode, a high potential power supply voltage line and a low potential power supply voltage line on the first base substrate;
- a planarization layer on the first conductive layer and partially exposes an upper surface of the drain electrode;
- a second conductive layer on the planarization layer and comprises a first electrode electrically connected to the exposed upper surface of the drain electrode, in each of the pixels and comprising a lower film, a reflective film stacked on the lower film and an upper film stacked on the reflective film;
- a bank layer on the second conductive layer and partially exposing the first electrode;
- a light emitting layer on the bank layer and electrically connected to the exposed first electrode;
- and
- a second electrode on the light emitting layer, wherein the light emitting layer is configured to emit blue light in a wavelength range of 420 nm to 470 nm, the lower film and the upper film comprise any one of ITO, IZO, ZnO, ITZO, and MgO, and the reflective film comprises AlNiX, where X is any one element selected from La, Ce, Pr, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Tb and Lu.
5 more elements
Dependencies are inferred from the claim text.