<p>This paper investigates the state observer design problem for nonlinear switched systems. To enhance resource utilization efficiency, a novel hybrid dynamic event-triggering mechanism is proposed to reduce network transmission burden. The mechanism ensures a lower bound on inter-event intervals, significantly improving practical feasibility. By integrating the hybrid dynamic event-triggering strategy with state observation techniques, an innovative observer framework is developed for nonlinear switched systems. The observer synthesis problem is then reformulated as a linear matrix inequality problem for gain matrix computation. Numerical simulations are conducted to validate the effectiveness of the proposed approach.</p>