Positioning and inspecting system and method using same
AssigneeHannstar Display Corp.
InventorCheng Ming Chen
Life of this patent
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Abstract
A system for inspecting signals of the circuits on a panel is disclosed. The system comprises a moveable stage with a transparent work area for holding the panel to be tested; a probe for contacting the panel; a tester for receiving a signal via the probe; an image sensing device disposed in an opposite side to the probe with respect to the stage; and image display device coupled to the image sensing device. The image display device includes a screen having a cross mark. When the system is operating, the probe is aligned with the image sensing device such that the captured image of the probe is displayed on the center of the cross. Furthermore, the present invention also relates to a method for inspecting the signals of the circuits on the panel by the system.
Claims14
A positioning and inspecting system comprising:
- a stage for holding a transparent substrate with at least one terminal, wherein the stage including a transparent work area;
- a first moving device for moving the stage;
- a probe disposed above the stage for contacting one of the terminals of the transparent substrate, wherein the probe is movable in a vertical direction relative to the stage;
- a tester for receiving a signal from one of the terminals of the transparent substrate via the probe;
- an image sensing device disposed in an opposite side to the probe with respect to the stage;
- an image display device for displaying an image picked up by the image sensing device;
- and
- a second moving device for moving the image sensing device.
A method for positioning and inspecting method comprising steps of:
- (a) providing a positioning and inspecting system comprising:
- a stage having a transparent work area;
- a probe disposed above the stage movable in a vertical direction relative to the stage;
- a tester;
- an image sensing device disposed in an opposite side to the probe with respect to the stage;
- and
- an image display device for displaying an image picked up by the image sensing device, wherein the image display device includes a monitor having a screen with a cross mark;
- (b) aligning the image sensing device with the probe such that the picked up image of the probe is displayed on the center of the cross mark of the screen;
- (c) disposing a transparent substrate on the stage in a manner that one terminal of the transparent substrate is disposed above the transparent work area of the stage;
- (d) providing an input signal to the transparent substrate;
- (e) conducting a focusing step such that the picked up image of the terminals of the transparent substrate are shown clearly on the screen of the image display device;
- (f) moving the stage such that the picked up image of one of the terminals is located on the center of the cross mark of the screen;
- (g) moving the probe to contact the terminal;
- and
- (h) receiving an output signal from the terminal by the tester via the probe.
A method for positioning and inspecting outer leads on a liquid crystal display device, the method comprising the steps of:
- (a) obtaining the liquid crystal display device, the liquid crystal display device comprising:
- a liquid crystal panel including a pair of glass substrates and connecting wiring formed on at least one of the glass substrates, wherein the connecting wiring includes a plurality of outer leads extending on a periphery of the liquid crystal panel;
- and
- at least one tape carrier packages mounted on the periphery of the liquid crystal panel in a manner that at least a portion of each outer lead is not covered by the tape carrier package;
- (b) providing a positioning and inspecting system comprising:
- a stage having a transparent work area;
- a probe disposed above the stage movable in a vertical direction relative to the stage;
- a tester;
- an image sensing device disposed in an opposite side to the probe with respect to the stage;
- and
- an image display device for displaying an image picked up by the image sensing device, wherein the image display device includes a monitor having a screen with a cross mark;
- (c) aligning the image sensing device with the probe such that the picked up image of the probe is displayed on the center of the cross mark of the screen;
- (d) disposing the liquid crystal display device having a plurality of outer leads on the stage;
- (e) providing an input signal to the liquid crystal display device;
- (f) conducting a focusing step in a manner that the picked up image of the uncovered portion of the outer leads of the liquid crystal display device are shown clearly on the screen of the image display device;
- (g) moving the stage such that the picked up image of the uncovered portion of one of the outer leads is located on the center of the cross mark of the screen;
- (h) moving the probe to contact the uncovered portion of the outer lead of the liquid crystal display device;
- and
- (i) receiving an output signal from the uncovered portion of the outer lead by the tester via the probe.
Dependencies are inferred from the claim text.