This paper concentrates on analyzing the stability problems of aperiodic sampled-data systems with time delay. Based on Lyapunov theory. a new time-square-dependent two-side looped-functional (TTLF) is proposed. which can take full advantage of the second order terms with respect to time. https://www.roneverhart.com/BenQ-Zowie-XL2546X-24-5-FHD-Fast-TN-Gaming-Monitor-240Hz-DyAc-2-Technology-Dual-Backlight-Design-Auto-Game-Mode-HDMI-/