| 摘要 |
<p>PROBLEM TO BE SOLVED: To inspect pixel capacities in a TFT-LCD in a short time. SOLUTION: A voltage Vp is applied from a power source (e) to a node A by turning switches SW1, SW3 on. A voltage Vs is applied from the power source to a node B by turning the switch SW1 off. After the switch SW3 is turned off and the switch SW1 is turned on, a potential difference between both ends of the switch SW3 is measured by a voltmeter V. When a potential difference to be obtained at both ends of the switch SW3 when the switch SW2 is always kept off and a potenial difference to be obtained at both ends of the switch SW3 when the switch SW2 is always kept on are defined respectively asΔVs1,ΔVs2, a pixel capacity Cp can be calculated by (ΔCs.ΔVs1.ΔVs2)/ (Vp-Vs)(ΔVs1-ΔVs2)), providedΔCs is a reference capacity.</p> |
