Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
134 words
A color liquid crystal display device for, after modulating a plurality of beams in mutually different wavelength ranges through the use of a common liquid crystal display element (20), color displaying the respective beams on a display screen (7), the device characterized in that the beams are incident upon the common liquid crystal display element (20) from the mutually different directions, the liquid crystal display element (20) being provided with liquid crystal driving means for light modulating the beams transmitting therethrough at mutually different angles in units of a beam, and on a surface of the liquid crystal display element (20) upon which the light is incident an optical system is disposed for forming the respective beams transmitted through the liquid crystal display element (20) into combined color images on the display screen (7).
Claim 2
Dependent Claim
66 words
A color liquid crystal display device as defined in Claim 1 characterized in that a plurality of dichroic mirrors (4R,4G and 4B) are provided for spliting the single beam from a light source into a plurality of beams of different wavelength ranges so as to make the beams in the respective wavelength ranges incident upon the common liquid crystal display element (20) from mutually different directions.
Claim 3
Dependent Claim
87 words
A color liquid crystal display device as defined in Claim 2 characterized in that three dichroic mirrors (4R,4G and 4B) are provided for separating the wavelength ranges of the beams into three wavelength ranges, a first wavelength range being of 600 nm or longer, a second wavelength range being between 500 nm and 570 nm, and a third wavelength range being of 500 nm or shorter, so that the beams in the respective wavelength ranges are to be incident upon the common liquid crystal display element (20).
Claim 4
Dependent Claim
82 words
A color liquid crystal display device as defined in any of Claims 1 to 3 characterized in that the liquid crystal display element (20) further comprising: a signal electrode (21B,21G or 21R) to which an independent display signal for each color is applied so as to drive liquid crystal (23); and a micro-lens array (10) for rendering the respective beams incident thereon at different angles transmit the liquid crystal portions driven by the signal electrode (21B,21G or 21R) of the corresponding color.
Claim 5
Dependent Claim
28 words
A color liquid crystal display device as defined in Claim 4 characterized in that the micro-lens array (10) comprises machined glass or plastic having a uniform refractive index.
Claim 6
Dependent Claim
31 words
A color liquid crystal display device as defined in Claim 4 characterized in that the micro-lens array comprises a lens whose refractive index is distributed by a selective ion exchange method.
Claim 7
Dependent Claim
36 words
A color liquid crystal display device as defined in any of Claims 4 to 6 characterized in that the micro-lens array (10) comprises a lenticular lens and the signal electrode is in the form of stripe.
Claim 8
Dependent Claim
43 words
A color liquid crystal display device as defined in any of Claims 4 to 6 characterized in that the micro-lens array (10) comprises a lens in the form of honeycomb and the said signal electrode is in the form of mosaic or delta.
Claim 9
Dependent Claim
98 words
A colour liquid crystal display device in which different colour components of an image to be projected are formed using a common liquid crystal display panel (20) characterized in that means (1,2,3,4R,4G,4B) is provided for projecting different colour beams (R,G,B) onto the panel from different directions, the panel respective sets of image-modulation elements (21R, 21G, 21B) arranged to be controlled for light-modulation in accordance with the respective required colour components of the image, and in that optical means (10) is provided for projecting the light of said incident beams to the respective corresponding sets of image modulation elements.