초록 ▼

A liquid crystal display is provided which reduces the substrate cost and shortens the wiring length to drive elements thereby decreasing wiring resistance and load on the drive power supply. A pixel array board is also provided, as well as a manufacturing process and a method for forming an image w

A liquid crystal display is provided which reduces the substrate cost and shortens the wiring length to drive elements thereby decreasing wiring resistance and load on the drive power supply. A pixel array board is also provided, as well as a manufacturing process and a method for forming an image with the pixel array board. A silicon substrate 1 is used as an LCD pixel array. A through hole is formed in the silicon substrate 1 by means of anisotropic etching or the like. Formed in the through hole are an insulating layer 5 and a wiring conductor layer (for example, Cr--Cu--Au layer) 8 with a predetermined pattern. The wiring conductor layer 8 is bonded to a conductor layer (for example, Cr--Cu--Au layer) 8' of a drive element 10 through a solder layer 9, or by means of thermo-compression bonding between the Cr--Cu--Au layer 8 and the Cr--Cu--Au layer 8' to connect the LCD pixel array on the surface of silicon substrate 1 to the drive element 10 and the like on the bottom of silicon substrate 1.

대표청구항 ▼

[ What is claimed is:] [1.] A liquid crystal display, comprising:a liquid crystal pixel board comprising a silicon substrate having first and second opposed surfaces and a liquid crystal pixel array disposed on the first surface of the substrate;at least one via through hole connecting the first and

[ What is claimed is:] [1.] A liquid crystal display, comprising:a liquid crystal pixel board comprising a silicon substrate having first and second opposed surfaces and a liquid crystal pixel array disposed on the first surface of the substrate;at least one via through hole connecting the first and second surfaces of the substrate; andat least one driver element for addressing the liquid crystal pixel array, the at least one driver element being bonded to the second surface of the substrate and being connected electrically to the liquid crystal pixel array by a conducting layer formed on said at least one via through hole. [4.] A method of forming a liquid crystal display, comprising the steps of:forming a liquid crystal pixel board comprising a silicon substrate having first and second opposed surfaces and a liquid crystal pixel array disposed on the first surface of the substrate;forming at least one via through hole in the substrate connecting the first and second surfaces thereof;forming at least one driver element for addressing the liquid crystal pixel array, the at least one driver element being formed as an integrated circuit separately from the liquid crystal pixel array; andbonding the at least one driver element to the second surface of the substrate and electrically connecting the liquid crystal pixel array to the at least one driver element by a conducting layer formed on the at least one via through hole.