Method for mounting TCP film to display panel
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKiyohiro Kawasaki
Life of this patent
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Abstract
When pressure-bonding a conductive pattern (12) of TCP film (4) to a terminal electrode (5) of an active substrate (2) via a photo-curing resin (23), a translucent resin (22) is filled into openings (21a, 21b) formed to penetrate an opaque film (20) and the conductive pattern (12) to complete pressure-bonding and light rays (30) are applied to the joint surfaces of the conductive pattern (12) and a connection terminal (5) via the translucent resin (22) from the side of the TCP film (4) where the pattern (12) is not formed to cure the photo-curing resin (23), whereby TCP film can be mounted to a liquid crystal panel at low temperatures.
Claims9
A method for mounting a TCP on a display panel comprising a step of establishing connections between terminal electrodes of a liquid crystal panel, which is formed of an active substrate and an opposing color filter substrate with liquid crystal filled therebetween, and a TCP film formed of an opaque film substrate with a conductive pattern formed on a surface thereof,
- wherein the active substrate comprises:
- a first translucent insulating substrate;
- a plurality of scanning lines disposed on a main surface of the first translucent insulating substrate;
- a plurality of signal lines intersecting generally at a right angle with the scanning lines, respectively;
- at least a layer or more of insulating layer sandwiched between the scanning lines and the signal lines;
- at least a switching element and pixel at each respective point of intersection of the scanning line and signal line;
- and
- terminal electrodes of the scanning lines and signal lines disposed outside an image display area of the active substrate, and
- wherein the color filter substrate opposing to the active substrate, comprises:
- a second translucent insulating substrate with a translucent conductive layer disposed on a main surface thereof;
- or
- the second translucent insulating substrate with a color filter layer formed thereon,
- wherein, when the conductive pattern of the TCP film and the terminal electrodes are connected with one another via a photo-curing resin, an opening formed on the opaque film substrate and also on the conductive pattern is filled with a translucent resin and applied with a pressing force to establish connections between the conductive pattern of the TCP film and the terminal electrodes, and light rays are irradiated on joint surfaces between the conductive pattern and the terminal electrodes through the translucent resin from a side opposite to a surface of the TCP film provided with the conductive pattern, thereby hardening the photo-curing resin.
A method for mounting a TCP film on a display panel comprising a step of establishing connections between terminal electrodes of a liquid crystal panel, which is formed of an active substrate and an opposing color filter substrate with liquid crystal filled therebetween, and a TCP film formed of a translucent film substrate with a conductive pattern formed on a surface thereof,
- wherein the active substrate comprises:
- a first translucent insulating substrate;
- a plurality of scanning lines disposed on a main surface of the first translucent insulating substrate;
- a plurality of signal lines intersecting generally at a right angle with the scanning lines, respectively;
- at least a layer or more of insulating layer sandwiched between the scanning lines and the signal lines;
- at least a switching element and pixel at each respective point of intersection of the scanning line and signal line;
- and
- terminal electrodes of the scanning lines and signal lines disposed outside an image display area of the active substrate, and
- wherein the color filter substrate opposing to the active substrate, comprises:
- a second translucent insulating substrate with a translucent conductive layer disposed on a main surface thereof;
- or
- the second translucent insulating substrate with a color filter layer formed thereon,
- wherein, when an opening is formed on the conductive pattern of the TCP film and the conductive pattern of the TCP film and the terminal electrodes are joined together by pressing against one another via a photo-curing resin, light rays are irradiated on joint surfaces between the conductive pattern and the terminal electrodes from a side opposite to a surface of the TCP film provided with the conductive pattern while keeping the conductive pattern to be pressed onto the terminal electrodes, thereby hardening the photo-curing resin.
A method for mounting a TCP film on a display panel comprising a step of establishing connections between terminal electrodes of a display panel, which comprises a plurality of scanning lines, a plurality of signal lines intersecting generally at a right angle with the scanning lines, respectively, and terminal electrodes of the scanning lines and signal lines disposed outside an image display area of the display panel, and a TCP film formed of an opaque film substrate with a conductive pattern formed on a surface thereof, wherein, when the conductive pattern of the TCP film and the terminal electrodes are connected with one another via a photo-curing resin, an opening formed on the opaque film substrate and also on the conductive pattern is filled with a translucent resin and applied with a pressing force to establish connections between the conductive pattern of the TCP film and the terminal electrodes and light rays are irradiated on joint surfaces between the conductive pattern and the terminal electrodes through the translucent resin from a side opposite to a surface of the TCP film provided with the conductive pattern, thereby hardening the photo-curing resin.
A method for mounting a TCP film on a display panel comprising a step of establishing connections between terminal electrodes of a display panel, which comprises a plurality of scanning lines, a plurality of signal lines intersecting generally at a right angle with the scanning lines, respectively, and terminal electrodes of the scanning lines and signal lines disposed outside an image display area of the display panel, and a TCP film formed of a translucent film substrate with a conductive pattern formed on a surface thereof,
- wherein, when the conductive pattern of the TCP film and the terminal electrodes are connected with one another via a photo-curing resin, an opening is formed on the conductive pattern of the TCP film and the conductive pattern of the TCP film and the terminal electrodes are joined together by pressing against one another via a photo-curing resin, light rays are irradiated on joint surfaces between the conductive pattern and the terminal electrodes from a side opposite to a surface of the TCP film provided with the conductive pattern wbile keeping the conductive pattern to be pressed onto the terminal electrodes, thereby hardening the photo-curing resin.
Dependencies are inferred from the claim text.