This study, focusing on the application of dynamic thermochromic materials in visual communication design, tested the thermochromic performance and thermal energy storage efficiency of different materials, focusing on the impact of pattern complexity on thermal distribution uniformity. Experimental results showed that the standard deviation of thermal distribution for a simple stripe pattern, σe, was 1.2 °C, with 90% visual consistency. The tortuous path in complex dots increases thermal resistance by 42% due to increased interface scattering of phonons. Pattern metrics were quantified: dot diameter/spacing ratio >0.5 correlates with σe >3 °C (R2=0.89). Expanded tests with gradients showed similar trends (σe=3.2°C). Material B particles amplified unevenness by 15% vs. Material A, as inorganic agglomerates created local thermal barriers. This validates the need for streamlined designs across materials. This research provides data support for optimizing pattern morphology in visual design, demonstrating that a streamlined lay-out can enhance the effectiveness of thermochromic materials.