Year: 2026
Type: conference-paper
Abstract: This study develops an OLED display structure with an integrated black matrix (BM) layer to enable switchable privacy functionality. In privacy mode, the screen's luminance at 45° viewing angle is suppressed to below 0.5% of frontal brightness. We systematically investigate critical design parameters— including pixel definition layer (PDL) aperture size, vertical BM height, and thin‐film refractive indices—for their effects on viewing angle control, with particular focus on how these factors govern off‐axis luminance suppression. Furthermore, the interference mechanism of internal stray light on viewing‐angle luminance in privacy mode is analyzed.
Institution: Tianma Microelectronics (China)
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W7212260296