US 5,739,887 A · Liquid crystal display device with reduced frame portion surrounding display area

Abstract

A liquid crystal display device. The liquid crystal display device has a peripheral circuit including a liquid crystal display having drive ICs COG-packaged on a transparent substrate, and a foldable multi-layered flexible substrate having two or more conductor layers, so that the compact packaging can be realized to reduce EMI noise and the number of parts. The liquid crystal display device may also include a display controller having two or more display control integrated circuit elements packaged therein, and drive ICs mounted by a chip-on-glass packaging on two sides of a liquid crystal display panel, usually, on the longer sides, so that the display controller excellent in the temperature resistance and advantageous in compact and a video signal line driving circuit board are uniformly arranged at the upper and lower sides of a screen. As a result, the vertical positioning of the screen can be made proper to take an advantage in the compact packaging. Further, the liquid crystal display device may have a peripheral circuit board positioned in an outer periphery of a seal port recessed to avoid the projection of the seal port and in which a fluorescent tube has its two lamp cables arranged around four sides of a liquid crystal display element, so that the substrate at the seal port side and the lamp cable of a side light type back light can be compactly packaged.

Claims17

Dependent claims

A liquid crystal display device comprising:

drive ICs mounted on one of two superposed insulating substrates, wherein at least one of the substrates is transparent;
and at least one multi-layered flexible substrate is arranged in an outer periphery of at least one side of the at least one of the substrates and having a pattern portion of three or more conductor layers;
wherein a pattern portion made of either one conductor layer or two conductor layers of the at least one multi-layered flexible substrate is electrically connected with an input terminal pattern of the drive ICs, which is formed on and in a direction substantially normal to the at least one side of the at least one of the substrates;
wherein an anisotropic conductive film is used both for mounting the drive ICs on the at least one of the substrates, and for connecting the pattern portion made of either one conductor layer or two conductor layers of the at least one multi-layered flexible substrate with the input terminal pattern;
and
wherein the at least one multi-layered flexible substrate is folded by approximately 180 degrees at a foldable portion having one conductor layer or two conductor layers.

3 more elements

A liquid crystal display device comprising:

drive ICs mounted on one of two superposed insulating substrates, wherein at least one of the substrates is transparent;
and multi-layered flexible substrates are arranged in an outer periphery of two adjacent sides of four sides of the at least one of the substrates and at least one of the multi-layered flexible substrates has a pattern portion of three or more conductor layers;
wherein a pattern portion made of either one conductor layer or two conductor layers of each of the multi-layered flexible substrates is electrically connected with an input terminal pattern of the drive ICs, which is formed on and in a direction substantially normal to at least one side of the at least one of the substrates;
wherein an anisotropic conductive film is used both for mounting the drive ICs on the at least one of the substrates, and for connecting the pattern portion made of either one conductor layer or two conductor layers of the at the at least one of the multi-layered flexible substrates with the input terminal pattern;
and
wherein at least one of the multi-layered flexible substrates is folded by approximately 180 degrees at a foldable portion having one conductor layer or two conductor layers.

3 more elements

A liquid crystal display device comprising:

drive ICs mounted on one of two superposed transparent insulating substrates, wherein at least one of the substrates is transparent;
and multi-layered flexible substrates arranged in an outer periphery of two opposed longer sides and one shorter side of four sides of the at least one of the substrates and at least one of the multi-layered flexible substrates having a pattern portion of three or more conductor layers,
wherein a pattern portion made of either one conductor layer or two conductor layers of each of the multi-layered flexible substrates is electrically connected with an input terminal pattern of the drive ICs, which is formed on and in a direction substantially normal to aside of the at least one of the substrates;
wherein an anisotropic conductive film is used both for mounting the drive ICs on the at least one of the substrates, and for connecting the pattern portion made of either one conductor layer or two conductor layers of each of the multi-layered flexible substrates with the input terminal pattern;
and
wherein at least one of the multi-layered flexible substrates is folded by approximately 180 degrees at a foldable portion having one conductor layer or two conductor layers.

3 more elements

Dependencies are inferred from the claim text.

Liquid crystal display device with reduced frame portion surrounding display area

Life of this patent

Liquid crystal display device with reduced frame portion surrounding display area

Life of this patent

Abstract

Claims17