Patent ID: 7995178

Claim:
A liquid-crystal-display panel for displaying a barcode that is formed with bars having various widths arranged in parallel at various intervals by an electro-optic effect of liquid crystal, the liquid-crystal-display panel comprising: a pair of substrates, each with a pair of surfaces opposing to each other and being covered with an orientation film; a liquid crystal layer sealed between the substrates; and a polarizing film attached on one of the substrates, the one on a side on which light for reading the barcode is irradiated, wherein the liquid crystal layer is formed with ferroelectric liquid crystal having a first ferroelectric state and a second ferroelectric state as stable states, the barcode is displayed such that a direction of a short side of the barcode becomes parallel to a predetermined side of the liquid-crystal-display panel, and an orientation direction (orientation axis OA) of the orientation films, which determines a direction of a molecular of the ferroelectric liquid crystal, is always inclined from every side of the liquid-crystal-display panel, the direction of the short side of the barcode and a direction of a long side of the barcode, and a direction of a transmissive axis of the polarizing film coincides with a direction in which the light for reading a barcode is polarized.