Abstract: A first on-board device installed on a first train controls an emergency brake unit. When it is determined that an actual deceleration value is insufficient in comparison with a predetermined emergency brake reference deceleration value, the first on-board device predicts a first stop location based on the actual deceleration value, and sends, to a ground control device, a first signal indicating insufficient deceleration and a first stop location signal representing the first stop location predicted. The ground control device sends the first signal and the first stop location signal to a second on-board device of a second train traveling ahead of the first train. The second on-board device invalidates a preset first run curve, over a range from a second train location representing an on-track location of the second train to a stop limit location of the second train, and generates a second run curve to control the second train.

Abstract: An optical compensation sheet for a TN-mode liquid crystal display device is provided and includes a transparent film including one or more layers, and the optical compensation sheet satisfies formulae (1) and (2). 40?Re(550)?130??(1) 100?Rth(550)?200??(2) Re(?) is an in-plane retardation value for light at a wavelength of ? nm, and Rth(?) is a retardation vale in a thickness direction for light at a wavelength of ? nm.

Abstract: An optical compensation sheet for a TN-mode liquid crystal display device is provided and includes a transparent film including one or more layers, and the optical compensation sheet satisfies formulae (1) and (2). 40?Re(550)?130 ??(1) 100?Rth(550)?200 ??(2) Re(?) is an in-plane retardation value for light at a wavelength of ? nm, and Rth(?) is a retardation vale in a thickness direction for light at a wavelength of ? nm.

Abstract: To provide a high-display-quality optical compensation sheet and a liquid crystal display having the optical member without inducing a problem, such as light leakage due to thermal distortion, the optical compensation sheet for a liquid crystal display, the liquid crystal display containing: a liquid crystal cell having a glass plate; and a polarizing plate having the optical compensation film faced to the glass plate, wherein a thickness of the optical compensation sheet, a photoelastic coefficient of the optical compensation and a photoelastic coefficient of the glass plate satisfy the condition specified in the specification.