Although measured noise declined as SAFIRE strength increased, S3 seems optimal for the best subjective image quality on LDCT 30mAs. The diagnostic performance of LDCT 30mAs with any strength is comparable to that of LDCT 100mAs for the diagnosis of acute appendicitis.

In this letter the authors studied the method to control the position of the generated defect on the slit of the patterned vertical alignment liquid crystal (LC) cell with dynamic stability. The authors modeled the LC director field with a defect on the slit and proposed an advanced wing pattern with a defect trap to stick the defect outside the active area. This shape can prevent the generation of the defect on the slit in the active area even if the authors increase the operation voltage, so that the LC dynamics on the slit is very stable and optical transmittance becomes higher.

In this paper we propose an optical configuration of a horizontal-switching liquid crystal (LC) cell with two positive C-plates and a single A-plate in order to improve the optical property in the diagonal direction, which is a weakness of horizontal-switching LC cells. The proposed configuration's optical design was performed on a Poincaré sphere with the trigonometric method. From calculations, we show that the proposed structure can increase the contrast ratio in the diagonal direction by about 10 times.

In this paper, we propose a novel electrode structure, which exhibits high-aperture ratio, in the super in-plane switching (S-IPS) liquid crystal (LC) cell for high transmittance. Generally, the transmittance of the S-IPS LC cell is not superior to other LC mode using the multi domain effect because of the low aperture ratio. To improve the aperture ratio of the S-IPS cell, we found the method to minimize the black matrix (BM) area by applying the novel electrode structure which can move the disclination from the active area. As a result, we found that the proposed electrode structure could provide higher aperture ratio than that of the conventional type by reducing the BM area, so that we could achieve the high transmittance compared to the conventional structure. We used the commercial software 'TechWiz LCD' for calculation of the director configuration, which applies Q-tensor method.

We propose an improved pattern structure that can reduce the response time by using strong fringe field in the pattern vertical alignment LCD. We applied an additional buried electrode in the PVA LCD so that we could increase the fringe field on the edge of the electrode. The strong fringe field on the edge of the electrode helps the liquid crystal director in the bulk area to have an appropriate orientation quickly when the voltage is applied. As a result, we could improve the response time effectively. We used the software TechWiz LCD in order to calculate the director configuration and the response time. From the simulation results, we have found that the proposed structure exhibited 74.2% improvement in response time compared to the conventional structure in calculation.