Lg Display Co., Ltd.

DongRyul Jung

Kyuhwan Lee

Jisu Yoon

Jiseok Yang

KiSung Lim

Jae Ho Lee

Sujin Chang

JeBeom Park

Jaekyung Kang

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 comprising a display panel including a plurality of light emitting elements and a plurality of transistors and an infrared absorption pattern formed on an emission surface of the display panel, wherein electrodes included in the plurality of light emitting elements or electrodes included in the plurality of transistors are infrared reflective electrodes.

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.

Wavelength control film and display device

A light-emitting audio device, an audio output device, and a display device. The light-emitting audio device includes a micro device integrated with a micro LED device and piezoelectric device. Both image display and audio output can be enabled using a single device. Audio is output using a plurality of light-emitting audio devices disposed in a plurality of subpixels, respectively. An increase in the thickness of the display device due to integrate with a audio function can be minimized. A variety of audio output functions are provided by driving the light-emitting audio devices according to areas.

Light-emitting audio device, audio output device, and display device

A piezoelectric device and a display apparatus including the same are provided. A piezoelectric device includes: a first piezoelectric unit including a vibration-generating layer configured to vibrate at an input frequency based on a sound signal corresponding to the input frequency, and a second piezoelectric unit including: an air gap in the first piezoelectric unit, the air gap having a certain volume, and an air path connecting the air gap to an outer portion of the vibration-generating layer, the air path being configured to output a vibration.

Growing community of inventors

Paju-si, South Korea

DongRyul Jung