Abstract: An organic light-emitting display device includes first to third color filters disposed respectively in first to third sub-pixel areas, a planarization layer disposed on the first to third color filters, and a bank layer disposed on the planarization layer and between adjacent sub-pixel areas, wherein a portion of the second color filter protrudes upwardly beyond a top face of the planarization layer, wherein the bank layer covers the portion of the second color filter protruding upwardly beyond the top face of the planarization layer. The display device has a stack structure of the portion of the blue color filter protruding upwardly beyond a top face of the planarization layer and the bank layer covering the portion, thereby suppressing light leakage between adjacent sub-pixel areas, and improving a lifetime of an organic light emitting element.

Abstract: A display device can include a substrate including a display area, a subpixel positioned on the substrate and positioned in the display area, and a black bank positioned on the substrate. The black bank can include a first opening corresponding to an emission area of the subpixel, and quantum dots that absorb light having a wavelength in a visible light region. As a result, the display device can reduce external light reflectance.

Abstract: An organic light emitting display panel and an organic light emitting display device including the panel are discussed. The organic light emitting display device can include a planarization layer disposed on a substrate, a first electrode disposed on a portion of an upper surface of the planarization layer, a protective pattern surrounding a portion of an upper surface and a side surface of the first electrode, a bank disposed to expose the portion of the upper surface of the first electrode and to be in contact with the portion of the upper surface of the planarization layer while surrounding the protective pattern, a light emitting layer disposed on the bank and disposed on the upper surface of the first electrode that does not overlap the bank, and a second electrode disposed on the light emitting layer. The display device is capable of preventing the first electrode from being contaminated by foreign substances.

Abstract: An organic light-emitting display device includes first to third color filters disposed respectively in first to third sub-pixel areas, a planarization layer disposed on the first to third color filters, and a bank layer disposed on the planarization layer and between adjacent sub-pixel areas, wherein a portion of the second color filter protrudes upwardly beyond a top face of the planarization layer, wherein the bank layer covers the portion of the second color filter protruding upwardly beyond the top face of the planarization layer. The display device has a stack structure of the portion of the blue color filter protruding upwardly beyond a top face of the planarization layer and the bank layer covering the portion, thereby suppressing light leakage between adjacent sub-pixel areas, and improving a lifetime of an organic light emitting element.

Abstract: Provided are an optical member for enhancing luminance and an organic light-emitting display device having the same. An optical member includes: a linear polarizer, a blue cholesteric liquid crystal (CLC) layer configured to transmit light, the light having only one of: a left-handed circularly polarized light component and a right-handed circularly polarized light component, and a quarter wave plate configured to convert the transmitted light, having the left-handed circularly polarized light component or right-handed circularly polarized light component, into linear polarized light, wherein the blue cholesteric liquid crystal (CLC) layer and the quarter wave plate are located on a same side of the linear polarizer.

Abstract: Provided are a very highly transmissive polarizing plate which allows for improved luminance efficiency without reducing the degree of polarization by enhancing the color of the polarizing plate, and an organic light-emitting display device having the same. With this very highly transmissive polarizing plate, the brightness, lifetime, and efficiency of the organic light-emitting display device can be improved, and at the same time power consumption can be reduced.

Abstract: A polarizer of the present disclosure includes a light control layer which includes a plurality of partitions, a transmissive unit which is provided between the partitions and includes a scattering unit thereabove, and a liquid crystal layer disposed above the partitions and the transmissive unit; and a polarizing layer bonded to the light control layer. According to the present disclosure, a structure which restricts a viewing angle is disposed below a polarizer so that information is exposed only to the user, thereby implementing a narrow viewing angle.

Abstract: A polarizer of the present disclosure includes a light control layer which includes a plurality of partitions, a transmissive unit which is provided between the partitions and includes a scattering unit thereabove, and a liquid crystal layer disposed above the partitions and the transmissive unit; and a polarizing layer bonded to the light control layer. According to the present disclosure, a structure which restricts a viewing angle is disposed below a polarizer so that information is exposed only to the user, thereby implementing a narrow viewing angle.

Abstract: Provided are a very highly transmissive polarizing plate which allows for improved luminance efficiency without reducing the degree of polarization by enhancing the color of the polarizing plate, and an organic light-emitting display device having the same. With this very highly transmissive polarizing plate, the brightness, lifetime, and efficiency of the organic light-emitting display device can be improved, and at the same time power consumption can be reduced.

Abstract: Provided are an optical member for enhancing luminance and an organic light-emitting display device having the same. An optical member includes: a linear polarizer, a blue cholesteric liquid crystal (CLC) layer configured to transmit light, the light having only one of: a left-handed circularly polarized light component and a right-handed circularly polarized light component, and a quarter wave plate configured to convert the transmitted light, having the left-handed circularly polarized light component or right-handed circularly polarized light component, into linear polarized light, wherein the blue cholesteric liquid crystal (CLC) layer and the quarter wave plate are located on a same side of the linear polarizer.