Lg Display Co., Ltd.

Jiseok Yang

Kyuhwan Lee

DongRyul Jung

Jisu Yoon

Jae Ho Lee

JaeHo Lee

JeBeom Park

A display device is disclosed that includes a first substrate, a plurality of first color filters included in a color filter layer and transmitting first color light having a first color wavelength included in a first wavelength band, a plurality of second color filters included in the color filter layer and transmitting second color light having a second color wavelength included in the first wavelength band, a plurality of third color filters included in the color filter layer and transmitting third color light having a third color wavelength included in the first wavelength band, and a photoactive layer responsive to light having a second wavelength included in a second wavelength band different from the first wavelength band and including two or more openings overlapping with two or more second color filters among the plurality of second color filters.

Display device and pen touch system

A touch display device is disclosed. The touch display device includes a display panel. The display panel includes a light emitting element and a transistor made of a plurality of metal electrodes. The touch display device includes an infrared blocking film disposed on an emission surface of the display panel. The touch display device includes an infrared reflective pattern disposed on an inner or outer surface of the infrared blocking film.

Touch display device

A display device includes a first substrate including a plurality of transmissive areas allowing light having a first wavelength to be transmitted and a plurality of non-transmissive areas different from the plurality of transmissive areas, a plurality of light emitting elements disposed in the plurality of non-transmissive areas, an encapsulation layer on the plurality of light emitting elements, a code pattern layer in which at least one photoactive pattern including a photoactive material responsive to light having a second wavelength different from the first wavelength is disposed, and a cover window on the encapsulation layer, the at least one photoactive pattern being disposed in at least one of the plurality of transmissive areas.

Embodiments of the disclosure relate to a wavelength control film and a display device. A wavelength control layer for absorbing part of light of a specific wavelength band is disposed on an outer surface of a transparent substrate of the display device to enable a correction to the color temperature of white light, thus allowing for high-efficiency driving and a high color gamut upon implementing white light. Further, adjustment of the light absorption peak wavelength and transmittance of the light absorption material included in the wavelength control film enables wavelength control, with the characteristics of the light emitting element considered, and reduce external light reflectivity to thus provide the functions of a polarization plate.

Growing community of inventors

Paju-si, South Korea

Jiseok Yang