초록 ▼

A liquid crystal display element, which is installed in a projection-type color liquid crystal display, is provided with the first glass substrate. The first glass substrate is provided with the first micro-lens array on its light-incident side and the second micro-lens array on its light-releasing

A liquid crystal display element, which is installed in a projection-type color liquid crystal display, is provided with the first glass substrate. The first glass substrate is provided with the first micro-lens array on its light-incident side and the second micro-lens array on its light-releasing side. The first micro-lens array converges light beams of respective primary colors onto the vicinity of the light-releasing position on the second micro-lens array. The second micro-lens array makes the incident light beams parallel to each other and releases them from the liquid crystal display element. Thus, even in the case of using a projection lens having a small diameter, it is possible to improve the efficiency of utilization of light. Moreover, this arrangement eliminates the necessity of having to employ a comparatively expensive projection lens with a large diameter, thereby reducing the costs of production.

대표청구항 ▼

A projection-type color liquid crystal display comprising: a white-light source for emitting a white-light beam; light-beam dividing means for dividing the white-light beam into light beams consisting of a plurality of color rays having respectively different wavelength ranges; a liquid crystal disp

A projection-type color liquid crystal display comprising: a white-light source for emitting a white-light beam; light-beam dividing means for dividing the white-light beam into light beams consisting of a plurality of color rays having respectively different wavelength ranges; a liquid crystal display element including a face whereon pixels corresponding to the respective color rays are regularly disposed, said liquid crystal display element being arranged so that the incident color rays are modulated and transmitted through the pixels; a first micro-lens array for converging the color rays of the light beams onto corresponding pixel apertures in said liquid crystal display element, each color ray being allocated with respect to each wavelength range; and a second micro-lens array for deflecting the light beams so that their respective principal rays are aligned in parallel with one another, a focal distance of said first micro-lens array being designed so that focal points of the light beams that are released from said first micro-lens array are located in a vicinity of a light-releasing side of said second micro-lens array.