Patent ID: 8115706

Claim:
A texture image display apparatus provided with a display device that has a plurality of pixels, the apparatus comprising: a light ray control element array that has a plurality of light ray control elements for directing incident light toward a plurality of predetermined outgoing directions depending on a light incidence parameter, and that controls outgoing directions of light emitted by the display device; a pixel data generation unit, which generates pixel data for each pixel of the display device depending on an outgoing direction of light outputted from the pixel in question, such that a brightness of an image at a point in displayed content is changed depending on the plurality of predetermined outgoing directions; a driving unit, which generates a driving signal based on the pixel data generated by the pixel data generation unit for each pixel of the display device and delivers the generated driving signal to the display device to drive the display device; and a data acquisition unit, which acquires, for each point on an object to be displayed, a reflectance function that has as parameters a direction of incident light and a direction of outgoing light with respect to the object, and indicates reflectance which is a ratio of light quantity of the outgoing light to light quantity of the incident light, and acquires texture data of the object and incident light data indicating brightness of the incident light; wherein the pixel data generation unit generates the pixel data for each pixel that outputs light directed in a predetermined outgoing direction through the light ray control element to represent a certain point on the object, according to a reflectance indicated by a reflectance function, texture data and incident light data, and which satisfies a formula of: pixel data =reflectance ×texture data ×incident light data.