Contact probe for testing liquid crystal display and liquid crystal display testing device having thereof

A contact probe for testing a liquid crystal display in which contact pins arranged in parallel are attached on one face of a first layer of a nonconductive resin film such that the contact pins are orthogonal to the first layer of the nonconductive resin film and front end portions of the contact pins are projected from the first layer of the nonconductive resin film, comprising:

• a metal film attached on the first layer of the nonconductive resin film;
• a second layer of a nonconductive resin film attached on the metal film;
• and
• an elastic film comprising an organic or an inorganic material attached on the second layer of the nonconductive resin film such that the elastic film is projected more shortly than the contact pins to a side where the front end portions of the contact pins are projected from the first layer of the nonconductive resin film.

A contact probe for testing a liquid crystal display in which contact pins arranged in parallel are attached on one face of a first layer of a nonconductive resin film having a first width such that the contact pins are orthogonal to the first layer of the nonconductive resin film having the first width and front end portions of the contact pins are projected from the first layer of the nonconductive resin film having the first wide width, comprising:

• a metal film attached on the first layer of the nonconductive resin film having the first width;
• a second layer of a nonconductive resin film attached on the metal film;
• and
• an elastic film comprising an organic or an inorganic material attached on the second layer of the nonconductive resin film such that the elastic film is projected more shortly than the first layer of the nonconductive resin film having the first width to a side where the front end portions of the contact pins are projected from the first layer of the nonconductive resin film having the first width, the elastic film having a second width less than the first width of the nonconductive resin film.

A liquid crystal display testing device comprising:

• a contact probe for testing a liquid crystal display in which contact pins arranged in parallel are attached on one face of a first layer of a nonconductive resin film such that the contact pins are orthogonal to the first layer of the nonconductive resin film and front end portions of the contact pins are projected from the first layer of the nonconductive resin film and a metal film is attached on the first layer of the nonconductive resin film;
• an elastic film comprising an organic or an inorganic material laminated on the metal film of the contact probe for testing a liquid crystal display such that the elastic film is projected more shortly than the contact pins;
• a contact probe pinching body having a top clamp and a bottom clamp for pinching the contact probe for testing a liquid crystal display in a state in which the elastic film comprising the organic or the inorganic material is laminated on the contact probe;
• and
• a frame fixedly supporting the contact probe pinching body.

A liquid crystal display testing device comprising:

• a contact probe for testing a liquid crystal display in which contact pins arranged in parallel are attached on one face of a first layer of a nonconductive resin film such that the contact pins are orthogonal to the first layer of the nonconductive resin film and front end portions of the contact pins are projected from the first layer of the nonconductive resin film, a metal film is attached on the first layer of the nonconductive resin film and a second layer of a nonconductive resin film is attached on the metal film;
• an elastic film comprising an organic or an inorganic material laminated on the second layer of the nonconductive resin film of the contact probe for testing a liquid crystal display such that the elastic film is projected more shortly than the contact pins;
• a contact probe pinching body having a top clamp and a bottom clamp for pinching the contact probe for testing a liquid crystal display in a state in which the elastic film comprising the organic or the inorganic material is laminated on the contact probe;
• and
• a frame fixedly supporting the contact probe pinching body.

A liquid crystal display testing device comprising:

• a contact probe for testing a liquid crystal display in which contact pins arranged in parallel are attached on one face of a first layer of a nonconductive resin film having a first width such that the contact pins are orthogonal to the first layer of the nonconductive resin film having the first width and front end portions of the contact pins are projected from the first layer of the nonconductive resin film having the first width and a metal film is further attached on the first layer of the nonconductive resin film having the first width;
• an elastic film comprising an organic or an inorganic material laminated on the metal film of the contact probe for testing a liquid crystal display such that the elastic film is projected more shortly than the first layer of the nonconductive resin film having the first width, the elastic film having a second width less than the first width of the nonconductive resin film;
• a contact probe pinching body having a top clamp and a bottom clamp for pinching the contact probe for testing a liquid crystal display in a state in which the elastic film comprising the organic or the inorganic material is laminated on the contact probe;
• and
• a frame fixedly supporting the contact probe pinching body.

A liquid crystal display testing device comprising:

• a contact probe for testing a liquid crystal display in which contact pins arranged in parallel are attached on one face of a first layer of a nonconductive resin film such that the contact pins are orthogonal to the first layer of the nonconductive resin film having the first width and front end portions of the contact pins are projected from the first layer of the nonconductive resin film having the first width, a metal film is attached on the first layer of the nonconductive resin film having the first width and a second layer of a nonconductive resin film is attached on the metal film;
• an elastic film comprising an organic or an inorganic material laminated on the second layer of the nonconductive resin film of the contact probe for testing a liquid crystal display such that the elastic film is projected more shortly than the first layer of the nonconductive resin film having the first width, the elastic film having a second width less than the first width of the nonconductive resin film;
• a contact probe pinching body having a top clamp and a bottom clamp for pinching the contact probe for testing a liquid crystal display in a state in which the elastic film comprising the organic or the inorganic material is laminated on the contact probe;
• and
• a frame fixedly supporting the contact probe pinching body.

A liquid crystal display testing device in which a contact probe for testing a liquid crystal display in which contact pins arranged in parallel are attached on one face of a first layer of a nonconductive resin film such that the contact pins are orthogonal to the first layer of the nonconductive resin film and front end portions of the contact pins are projected from the first layer of the nonconductive resin film and a metal film is attached on the first layer of the nonconductive resin film, is connected to a circuit having terminals connected to respective base ends of the contact pins, said liquid crystal display testing device comprising:

• a pressing film arranged on the resin film for pressing the contact pins toward an object of measurement via the resin film when the contact pins are brought into press contact with the object of measurement;
• a holding member for holding the pressing film and the contact probe;
• and
• wherein the pressing film is installed to project from the resin film such that a front end corner portion of the pressing film is not brought into contact with the resin film when the pressing film presses the contact pins via the resin film and an amount of projection of the pressing film from the resin film is set to be smaller than an amount of projection of the contact pins from the resin film such that the pressing film is not brought into contact with the contact pins.