Indication device

JP7884571B2Active Publication Date: 2026-07-03LG DISPLAY CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
LG DISPLAY CO LTD
Filing Date
2024-07-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing display devices face challenges in achieving high luminous efficiency and low power consumption, with conventional attempts to improve light-emitting elements being insufficient.

Method used

A display device design featuring a substrate with recesses and asymmetrical lens configurations that enhance light extraction efficiency, allowing for high brightness and low power operation through optimized light distribution.

Benefits of technology

The design improves light extraction efficiency, enabling a display device that can switch between wide and narrow viewing angles with reduced power consumption.

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Patent Text Reader

Abstract

To provide a display device for improving light extraction efficiency.SOLUTION: There is provided a display device that includes a board, an insulation layer that is positioned on the board and includes at least one recessed section having a center point while at least one recessed section includes a flat section and a sloped section surrounding the flat section, and a bank layer that is positioned on one sub-pixel on the insulation layer within at least one recessed section and on the insulation layer, and includes an opening area corresponding to the sub-pixel while the opening area includes a center point, the opening area is surrounded by the sloped section, and the center point of at least one recessed section deviates from the center point of the opening area of the bank layer so as to improve light extraction efficiency, and hence achieve low-power drive with high-luminance characteristics.SELECTED DRAWING: Figure 9a
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