Lg Display Co., Ltd.

Bongchul Kim

Jaewook Park

Jeonghun Kim

JooHwan Shin

Sangyun Kim

YoungShin Lee

Junhyeok Yang

Wonhoe Koo

Sookang Kim

Hyunsoo Lim

Jihyang Jang

KangJu Lee

JaeHyun Kim

HyeonWoo Lee

Seongeun Park

WooSup Shin

MoonGoo Kim

ChangHoon Han

Hangsup Cho

Yongyub Kim

Woosub Kim

HyunSik Seo

JeongHoon Lee

Changll Ryoo

WonGyun Youn

MyungWoo Nam

SangMin Park

Joohwan Shin

A flexible display device and a method for manufacturing a flexible display device are provided. A flexible display device includes: a support substrate having a first thickness and including a first material, the support substrate further including first and second main faces opposite to each other, a buffer substrate on the first main face of the support substrate, the buffer substrate having a second thickness smaller than the first thickness, and the buffer substrate including a second material more flexible than the first material, a thin-film transistor array on the buffer substrate, such that the buffer substrate is between the thin-film transistor array and the support substrate, and a sealing substrate fixed above the thin-film transistor array, the thin-film transistor array being between the buffer substrate and the sealing substrate.

Flexible display device and method for manufacturing the device

A rollable display includes a flexible display panel where pixels are arranged to display an image; a reinforcing structure that is bonded to the rear side of the flexible display panel and divided into a plurality of segments; a roller that is bonded to one end of the flexible display panel and allows the flexible display panel to be rolled around the circumference; a data PCB (printed circuit board) located on the rear side of the flexible display panel; a first connecting member that connects the data PCB to the flexible display panel; a control board accommodated in the internal space of the roller; and a second connecting member that connects the control board to the data PCB, wherein each of the segments of the reinforcing structure comprises a through hole into which the second connecting member is slidably inserted.

Rollable display

Disclosed herein is an organic light-emitting display device having a first flexible substrate; a second flexible substrate; a plurality of organic light-emitting pixels on the first flexible substrate and between the first flexible substrate and the second flexible substrate; an encapsulation unit covering the pixels; and an adhesive layer on the encapsulation unit. The Young's modulus of the adhesive layer is equal to or larger than a value so that the first flexible substrate is not deformed by bending stress when it is rolled up.

Organic light-emitting display device

The display device includes a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto, the roller being elongate; a support frame, the display-panel roller being rotatably coupled to the frame; a drive motor configured for rotating the display-panel roller with respect to the support frame, wherein a rotation of the display-panel roller allows roll-up of the panel around the roller or unroll-down of the panel from the roller; and an elastic unit configured to configured to provide an elastic force to assist in rolling up the display panel around the display-panel roller. This allows reduction of a size or capacity of the motor.

Display device with rollable display panel

The present disclosure provides a rollable display device including a display panel configured to display an image, a panel roller having a mechanical structure that enables rolling up the display panel around an outer circumferential surface of the panel roller, and a roller driving unit configured to control a motor so that the display panel rolls around the outer circumferential surface of the panel roller or unrolls therefrom, wherein the roller driving unit and the motor are disposed in the panel roller.

Rollable flexible display device

The present disclosure provides a display device comprising: a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto; and a support frame, the display-panel roller being rotatably coupled to the frame, wherein the display-panel roller includes: first and second elongate half-circularly rounded plates to face away each other to form a substantially cylindrical elongate inner space; and first and second support annular rings spaced from each other, wherein the first and second support annular rings are disposed in the inner space. Thus, the rollable display panel may be more easily fixed to the display-panel roller.

A rollable flexible display comprises: a display panel on which signal lines and pixels are arranged; a control board that supplies the signal lines with signals to drive the pixels; and a panel roller portion around which the display panel is rolled up and including an inner space for placing the control board, wherein the transverse width of the control board is greater than the inner diameter of the panel roller portion, and an insert portion for insertion into a slot in the panel roller portion is provided on at least one edge of the control board.

Rollable flexible display

The present disclosure provides a display device comprising: a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto; a support frame, the display-panel roller being rotatably coupled to the frame; and a first protective sheet, wherein when the panel is coiled around the panel roller, the first protective sheet is removably applied on a front face of the display panel. Thus, when the display panel is coiled around a display-panel roller, scratched may be suppressed in the panel.

Disclosed is a rollable flexible display device. The rollable flexible display device includes, for example, a display panel, a source board, and a panel roller unit. The panel roller unit provides a mechanical structure for rolling the display panel and the source board along an outer circumferential surface thereof. The panel roller unit may have a region forming a curved surface and a region forming a planar surface.

Provided are an organic light emitting display device and a method for manufacturing the same. A color filter is disposed on a substrate. An overcoating layer is disposed on the color filter and includes a plurality of protrusions or a plurality of recesses. The plurality of protrusions and the plurality of recesses are disposed on the color filter to be overlapped with the color filter. A buffer layer for reducing step difference is disposed on the overcoating layer. The buffer layer has a higher refractive index than the overcoating layer and reduces a step difference caused by the plurality of protrusions and the plurality of recesses. An organic light emitting element including an anode, an organic light emitting layer, and a cathode is disposed on the buffer layer. Since the buffer layer has a higher refractive index than the overcoating layer, light extraction efficiency can be increased.

Growing community of inventors

Daegu, South Korea

Bongchul Kim