JP2002357626A - Inspection method for liquid crystal display element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspection method for a liquid crystal display element capable of improving an area productivity of an inspection device. SOLUTION: After completing the assembling of panels, the multiple panels are collectively lit to examine the display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inspecting a liquid crystal display element used as an image display device for a mobile phone, a video movie, a car navigation system, and the like.

[0002]

2. Description of the Related Art Conventionally, a light-on display inspection of a liquid crystal display element has been performed by:
After the panel assembly is completed, it is done in a state cut into individual pieces,
Hereinafter, a conventional lighting display inspection method for a liquid crystal display element will be described with reference to FIG.

FIG. 3 shows a conventional lighting display inspection apparatus.
In FIG. 3, the lighting display inspection apparatus main body 31 includes a panel 3
3, a prober fixing frame 35 for fixing the prober 34, and a slide shaft 36.
And a plurality of slide shafts 36
It comprises a prober vertical cylinder 37 which can slide on the top and can be fixed at an arbitrary position, and a backlight 38 which is turned on when an inspection of the liquid crystal display element is performed.

[0004] The operation of the lighting display inspection apparatus having the above-described configuration will be described. First, the panel 33 is fixed to the positioning block 32 of the inspection apparatus main body 31.

Next, the prober 34 fixed to the prober fixing frame 35 is lowered using a prober vertical cylinder 37. Thereby, the substrate gate and the external terminal of the source electrode line contact the prober 34. Thereafter, the backlight 38 is turned on, and a lighting display inspection is performed.

[0006]

However, in the above-mentioned conventional lighting display inspection method for a liquid crystal display element, since the inspection is performed by a single panel, it takes time. Furthermore, when producing small panels, a large number of lighting display inspection devices are required in accordance with the number of panels, and a large area is required. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a method of inspecting a liquid crystal display element that can improve the area productivity of an inspection device.

[0007]

According to a first aspect of the present invention, there is provided a method for inspecting a liquid crystal display device, comprising the steps of: A liquid crystal display element inspection method for performing a visual inspection, wherein after the panel assembly is completed, a plurality of liquid crystal display panels are turned on at once and the inspection is performed.

As a result, a plurality of liquid crystal display panels can be inspected at once after panel assembly is completed and before individual cutting is performed. As a result, the time required for the inspection process is shortened, and the area of the inspection apparatus is reduced. Performance can be improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The embodiment described here is merely an example, and the present invention is not necessarily limited to this embodiment.

(Embodiment 1) Hereinafter, Embodiment 1
A method for inspecting a liquid crystal display element will be described. FIG.
Is a liquid crystal display element inspection apparatus according to the first embodiment. In FIG. 2, a liquid crystal display element inspection apparatus main body 21 is shown.
Is a positioning block 22 for fixing the bonding substrate 23,
A prober fixing frame 25 for fixing the prober 24, a slide shaft 26, a prober vertical cylinder 27 slidable on the plurality of slide shafts 36 and capable of fixing the prober fixing frame 25 at an arbitrary position, and a liquid crystal display element. And a backlight 28 that lights up when the inspection is performed. Note that the positioning block 2 is
May be provided, and may be movable on a plane according to the position of the bonding substrate 23.

Hereinafter, a method of inspecting a liquid crystal display device will be described. First, as shown in FIG.
3 is cut along the scribe line 15 on the side of the CF substrate side of the panel in which the AR substrate 14 and the AR substrate 14 are bonded together.
As shown in FIG.
The bonded substrate 23 formed by removing the counter substrate 13 of the external electrode 1 and the source electrode line external terminal 12 is fixed to the positioning block 22 of the inspection apparatus main body 21.

Next, the prober 24 fixed to the prober frame 25 is lowered using the prober vertical cylinder 27. In this manner, the gate electrode external terminal 11 and the source electrode line external terminal 12 of the bonded substrate 23 are
Contact

Then, the backlight 28 is turned on,
The lighting display inspection is performed, and when the inspection is completed, the bonded substrate 23 is inspected.
Is cut into individual pieces. This makes it possible to obtain a plurality of non-defective liquid crystal display elements by one inspection.

In the method of inspecting a liquid crystal display element according to the first embodiment, after the panel assembly is completed, the batch lighting display inspection is performed before cutting individual pieces, so that the time of the inspection process is reduced. In addition, the area productivity of the inspection device can be improved.

[0015]

The method for inspecting a liquid crystal display element according to the first aspect of the present invention is a method for inspecting a liquid crystal display element by visually inspecting the liquid crystal display element using a lighting display inspection apparatus having a prober. Therefore, after the panel assembly is completed, a plurality of liquid crystal display panels are turned on all at once, and the above inspection is performed. Therefore, after the panel assembly is completed, a plurality of liquid crystal display panels are collectively inspected before cutting individual pieces. As a result, the time of the inspection process can be shortened, and the area productivity of the inspection device can be improved.

[Brief description of the drawings]

FIG. 1 shows a bonded substrate in which a counter substrate portion of a gate / source electrode line external terminal is divided and removed.

FIG. 2 is a diagram showing an inspection device for a liquid crystal display element according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a conventional liquid crystal display element inspection device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 Gate electrode line external terminal 12 Source electrode line external terminal 13 CF substrate 14 AR substrate 15 Scribe line 21 Inspection device body 22 Positioning block 23 Bonding substrate 24 Prober 25 Prober fixing frame 26 Slide shaft 27 Cylinder for prober up / down 28 Backlight 31 Inspection device main body 32 Positioning block 33 Panel 34 Prober 35 Prober fixing frame 36 Slide shaft 37 Prober vertical cylinder 38 Backlight

Claims (1)

[Claims] 1. A method for inspecting a liquid crystal display element by performing a visual inspection of a liquid crystal display element using a lighting display inspection apparatus equipped with a prober. And performing the above-mentioned inspection.