Lg Display Co., Ltd.

Hyekyung Choi

Dongmin Sim

Wonhoe Koo

Kyunghoon Han

Jaeho Lee

Taemin Kim

YongCheol Kim

Kyung Hoon Han

YoungDock Cho

A display device includes, a light emitting element which is disposed in each of a plurality of subpixels and includes a first blue light emitting layer, a green light emitting layer on the first blue light emitting layer, and a second blue light emitting layer on the green light emitting layer; a first light conversion layer disposed in a first subpixel among the plurality of subpixels; and a second light conversion layer disposed in a second subpixel among the plurality of subpixels and having higher light conversion efficiency than the first light conversion layer, thus, the second light conversion layer having high light conversion efficiency is disposed in the second subpixel which is a red subpixel, thereby improving the luminance of the red light.

Display device display device with subpixels including a white quantum dot

An organic light emitting display apparatus can include a substrate including a plurality of pixels, a transistor on the substrate, an over coating layer on the transistor, a plurality of organic light emitting diodes on the over coating layer corresponding to the plurality of pixels, an encapsulation layer on the plurality of organic light emitting diodes, an adhesive member on the encapsulation layer, and an encapsulation substrate on the adhesive layer. Also, the plurality of pixels include at least first, second and third pixels that emit different color lights, and each of the plurality of organic light emitting diodes includes a first electrode on the over coating layer, a light emitting portion on the first electrode, and a second electrode on the light emitting portion. Also, the light emitting portion includes a first light emitting portion and a second light emitting portion, and elements have certain thicknesses and spatial arrangements.

Organic light emitting display apparatus having pixels of different structures

An organic light emitting display apparatus includes a substrate including a plurality of pixels. The organic light emitting display apparatus further includes a plurality of organic light emitting diodes on the substrate so as to correspond to the plurality of pixels. The plurality of pixels includes a first pixel, a second pixel, a third pixel, and a fourth pixel which emit different color light. Each of the plurality of organic light emitting diodes includes a first electrode, a light emitting portion on the first electrode and a second electrode on the light emitting portion. A thickness of the first electrode of the first pixel is different from a thickness of the first electrode of the second pixel, and the thickness of the first electrode of the second pixel is different from a thickness of the first electrode of the third pixel.

A light emitting display apparatus includes a substrate including a plurality of sub-pixels, an overcoating layer on the substrate and having a base portion and a protrusion portion, a first electrode disposed to cover the base portion and a side portion of the protrusion portion at the plurality of sub-pixels, a bank layer covering a portion of the first electrode and the overcoating layer, a light emitting layer and a second electrode on the first electrode and the bank layer at the plurality of sub-pixels, and a cut-off layer on the second electrode to overlap the bank layer.

Light emitting display apparatus

A light emitting display apparatus includes a substrate including a plurality of sub-pixels; an overcoating layer on the substrate and having a base portion and a protrusion portion; a first electrode disposed to cover a side portion of the protrusion portion and the base portion at the plurality of sub-pixels; a bank layer covering a portion of the first electrode and the overcoating layer; and a light emitting layer and a second electrode on the first electrode and the bank layer at the plurality of sub-pixels. The first electrode includes a reflective layer and a transparent conductive layer on the reflective layer, the transparent conductive layer includes a first portion on the base portion and a second portion on a side surface of the protrusion portion, and a thickness of the second portion is greater than a thickness of the first portion.

Light emitting display apparatus having improved light extraction and color gamut

A light emitting display apparatus according to an exemplary embodiment of the present disclosure includes an insulating layer on a substrate and including a base portion and a protrusion portion having an uneven portion at a part of the base portion, a first electrode covering an upper portion of the base portion and a side portion and a upper portion of the protrusion portion and disposed along the shape of the uneven portion, a bank layer covering a part of the insulating layer and a part of the first electrode, and an emission layer on the first electrode and the bank layer, and a second electrode on the emission layer.

A light emitting display apparatus includes an overcoating layer on a substrate and including a base portion and a protrusion portion. The light emitting display apparatus further includes a first electrode disposed to cover the base portion and a side portion of the protrusion portion. The light emitting display apparatus further includes a bank layer on a part of the first electrode. The light emitting display apparatus further includes a light emitting layer on the first electrode and the bank layer. The light emitting display apparatus further includes a second electrode on the light emitting layer. The bank layer includes a first part on the protrusion portion, a second part surrounding the first part and including an inclined upper surface, and a light extraction pattern on the first part adjacent to the second part.

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Seoul, South Korea

Hyekyung Choi