TW495607B - Inspecting system for flat glasses in the display manufacturing - Google Patents

Abstract

The present invention relates to a flat and thin object, and particularly to an inspecting system including at least a touch free detector which includes at least a camera, a lighting unit, and a conveyer to make an object move relatively, especially by an optical method for flat glass during display processing. The object can be held at a correct distance to the inspecting system by a clear thickness above an air cushion in the working area of the inspecting system. Therefore, the perfect transfer can be approached for the fragile flat glass of the display during inspecting.

Description

495607 V. Description of the invention (1) The present invention is a contact-free, especially at least one lighting. Checking the panel for broken glass on the display requires layers. Generally, the camera is used in the bright process, which often constitutes the image data to identify defects. Although the glass of the camera plate is thin, it requires large bending and warping. It's not enough to roll the flat glass. The flat glass is fragile. Therefore, 'For example, if it is attached to it, it must support the flat glass 300x400 plane. On the other hand, the existing wheel or belt surface and the stack must inevitably pass through the roller or the glass must be relatively large in mm, so that the product can be transported on the edge of the optical inspection. Plane inspection system in motion caused by rollers or belts or inspections makes the panel inspection system 'in case, when it comes to the outside belt, the surface surface of the inspection system should be a flat and thin object,-with at least one finger optical detection device, including At least one camera unit and at least one conveying device can be used to move the object. The present invention particularly refers to flat glass in the manufacture of displays. In the following, flat glass is mainly discussed. It is no longer necessary to limit the production of flat glass (such as flat screens). The necessary flaws are not only transparent carrier materials, but also This involves the use of an optical detection device for inspection, where at least one zone is 'in the dark zone' or in the transmission of light from at least one lighting unit. Here, the flat glass is guided in a straight line through the photographic row, and the camera detects the flat glass in a row. The pictured ¥ leads to the data preparation structure, and there are more problems in using the data and ’. It stretches to 80 × 100 °. It is more uniform than glass and can no longer be used. Support pressure relief. It can be seen that it extends to full width. When mechanically affected, very small particles can be damaged or dirty on the surface. In the distance defined by the camera 495607 V. Description of the invention (2): Lie in knowledge. Regarding the surface-to-object image in advance, the required local solution to the small tolerances is required. In 矣 ®II; ^ =, it is to provide the inspection system of the aforementioned technology, which can be achieved within the degree of accuracy, 'at the perfect transmission', at least in the range of the gas detection device = can avoid making tricks == 2: broken careful damage . It can be shown that the conveying device can hold the flat glass by borrowing the soil. In principle, the detection device keeps the objects in a line. σ ίγίίϊ :: above the total length of the actual arrangement, that is: :: suitable for the detection range 'with the most evenly aligned ;;; :: point-like or strip-shaped gas ...' as long as the thickness of the plate is avoided ΐ: The thickness of gas j can be from 0.5 to-, preferably-. This thickness is sufficient to feed the knife, and it can ensure the true transmission of the larger flat glass. But discouraged, the knife is stable and uniform, so as to maintain a certain thickness required. The flow generated by the breast pad should not be too strong to avoid flat glass.

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Controlled movement. According to the first specific example of the present invention, an air cushion is provided, which is composed of a gaseous medium and an inlet pressure through a perforated plate, especially compressed air. , At least an open side is provided with a filter material, covering the porous. # Advantage is that the plate can be constructed in a single way using average drilled plates. The role of filter media is to purify gaseous media. In addition, compared to air flowing through a porous body. Therefore, while maintaining the same thickness, the required stability of the air cushion can be achieved. ; Concerned materials can be fluff, plastic non-woven fabrics, brocade, etc., should be replaced as possible ’can be replaced when very contaminated.

According to a second specific example of the present invention, the air cushion is constituted by a gaseous medium, especially air, and a pressure is introduced through a fine-pored orifice plate. The plate may be made of a sintered material, especially a metallic material. The pore net size is preferably 8.0 to 20.0 V m ′, and more preferably 10 · 0 to 1 5 // jq. It was unexpectedly discovered that the introduction of pressure through the porous material through the gaseous medium to the opposite side can generate a certain flow for the stable air cushion. The porous material filters the gas at the same time, so it can avoid contamination of the tested surface. A further advantage is that the surface of the porous material can be processed for tension. Can achieve the desired quasi-pain. According to a preferred embodiment of the present invention, the air cushion can be generated with a small amount of air. This has the advantage that contamination of the flat glass prevents the introduction or attachment of particles by air. Therefore, porosity, filter media or pores do not block quickly.

A frame, a ge plate or multiple plates and / or plates with air-permeable and air-impermeable sections can be provided to create an air cushion. The surface on which the object leaves extends in a plane, and the angle to the horizontal is 0. Almost 90. , Preferably 80 °. In almost upright flush, the conveyor can be equipped with driven and co-rotating rollers

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The sub ’s can tightly hold the flat glass co-rotating wheels, and the flat glass plate or individual air cushions can be led. This can be done specifically for this or air cushion, so as to stabilize the air cushion as far as possible. The camera can be set on a flat glass detection device. The camera is configured in the gas example. At least two plates are separated from each other. Or the lighting unit can be placed in the gap behind the plate and the air cushion. Can produce the stability of the air cushion. The operating edge can also be provided with a moving edge. Incoming or generated gaseous media should be separated within the range of the detection device, provided with pressure to generate a certain air flow. With the side facing away from the air cushion, it should also be at least the side of the cushion. According to the present invention, it is preferable to have a gap as a boundary, so that the camera and the middle gap are within. The defined ratio of the airflow passing between the plates further improves the camera's illumination by at least one lighting unit arranged on the opposite side of the object. The camera may also be illuminated by at least one lighting unit arranged in a bright area and / or a dark area on the same side as the camera. Here, if the lighting in the bright area and / or the dark area is through the same gap, the camera should be arranged behind or in it. In addition, if the panel and / or the frame wall and / or the partition wall is located within the range of the & measuring device, at least part of it has a light-absorbing color or layer. Therefore, avoid bad reflections. / ^ Of course, a plurality of detection devices can also be provided in the conveying device, and different areas or characteristics of the glass can be broken in the flat plate, and for example, different lighting can be included. That is, an inspection system can be provided, so that the flat glass to be inspected can be transmitted above the detection device without grounding. Therefore, the detection layer can also be placed on the active layer on the side of the pad, otherwise mechanical damage will occur. The present invention can be described in detail below with reference to the drawings. In the drawings: Yu.

495607 Description of the invention (5) Figure 1 is a side view of the inspection system of the present invention; Figure 2 is a front view of the inspection system; and Figure 3 is a top view of the inspection system. In the diagram inspection system, there is a complex plate u, =. Distribute the compressed air to the back of the board to: 丨 Into the pressure μ air can flow through the pores to generate air ii2 iii material surface 20 or above. The supporting object is a stupid air cushion used to support the flat glass 13, using the table on the picture to make a dry evening: ίΐίίί set above. The transmission movement is at arrow 14; direct transmission to ί; = the board 11 used for the machine-made endogenous breast pad 12 of the two-angle transport must not be completely flat and placed on the square as shown in the figure. By default, the transmission in the form of a broken line longitudinally or across the plate 11 and the air cushion 12 will change overnight, and a defined flow ratio will be achieved. Figure 3 shows a number of mandatory obscure maps within the framework. It is preferably a symmetrical or balanced structure. Also, it is not a board, but a separate board is required for j 5. It is even better to have one or more large pipes] breathable and impermeable sections. Therefore, the central compressed air guide can be provided to arrange individual plates. The advantage is that the size can be simply used visually and surrounded. ^ In the specific example, the 'detection device includes multiple rows of cameras 1 6', the rows of door gaps 17 plates slope Glass 1 3. Then 'two adjacent plates 1 1 have a distance' and form a two gap η: ΪΪ transport device 14. Its configuration is such that the camera 16 can be seen through and the air cushion should extend across the full width of the flat glass.

Page 8 495607 V. Description of the invention (6) It does support flat glass passing detection device. A first lighting unit 18 is provided, and the gap 17 is illuminated during light transmission on the opposite side of the camera 16. A second lighting unit 19 is also provided, and the dark area of the camera 16 is illuminated through the gap 17. This allows for compact construction and allows the camera to be exposed directly or with controlled light. In this way, various characteristics of the flat glass 13 can be checked.

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Claims (1)

Former patent scope 1. An inspection system that can be used to inspect flat plates of glass, glass, glass, and thin objects in the manufacture of the container, + plate glass (13), which is an optical inspection device: there is at least- Illumination units (18, 19), and to w'_to / — This is relatively rare compared to the detection device's movement range 'in the range of the body to the measurement device with a defined thickness has a substantial distance. … Mat (12). Gas energy 2 婵; Shen: The inspection system of the first item in the scope of Qiaoli, 1 hole medium, especially air, through the evening ', the board 3 is provided with at least-摅 on the side of the departure. :, I :: .3. If the inspection system in the scope of patent application is No. 1, directly use gaseous media, especially air, holes, (11) Introduced pressure components.乂 Fine holes and 4. If the inspection system according to item 3 of the patent application, the gap plate (1 1) is made of sintered material. The inspection system and system of item 3 of the patent application scope of patent f is from 8.0 to 20.0, preferably from 10 · 0 to 15㈣. ^ 6: How to apply for a special course? ? The inspection system around item 1 produces flattening, especially for particles without air. No. of patent application scope! The inspection system of this item is 0.5 to 2mm, and 1mm is preferred. 8 8. If the inspection of the scope of application for the patent item number 丨 is arranged in a row around the object 塾), and discouraged (, to 4 in, substantially extending the full length of the line. ^ ^ ^ Limbs, especially showing at least one exemption Contact the camera (1 6) and the device. The object is kept under pressure by the detection device h, which is formed by pressure; the hole is above. The medium cushion (12) (the pores in the porous plate are pores.) Medium air cushion (12) Medium air cushion thickness, front and back of detection device row, 495607 9 · If the board or multiple boards (11) and / or the right test system are arranged within the scope of the patent application, there is one or more boards in the frame to generate air cushions (1 ^ 有 = 二 性 和 不The breathable area extends, and the back side surface of the horizontal tilt angle ^ / $ 物 / is preferably in a plane. The needle angle is 0 to almost 90 ° to 80. 10 · If the inspection system of item 8 of the patent application, Each air-permeable area of the plate or plate is separated by a gaseous medium that can be introduced (.). 11. If the inspection system in the scope of patent application No. 丨, at least two plates (11) are separated by 1, and separated by A gap (1 7) is the limiter. 1 2 · If the inspection system of the scope of patent application No. 1, wherein at least one camera (16) of the detection device is arranged on the side of the discontinuity. 1 3 · If the scope of patent application is No. 1 Item inspection system, in which the camera (1 6) and / or lighting unit (19) are arranged behind the board or in the gap (丨 7) between the boards. 1 4. The inspection system according to item 1 of the scope of patent application Where the camera (1 6) is composed of at least one lighting unit (1 8) Exposure person 1 5 · If the inspection system of the scope of patent application No. 1 wherein the camera (16) is exposed by at least the lighting unit (19) arranged in the bright area and / or dark area on the same side of the camera ^ 1 6 · The inspection system according to item 12 of the scope of patent application, in which the illumination of the bright area and / or the dark area is effected through the same gap (1 7) arranged behind or within the camera (16) Α 1 7 · As for the inspection system in the scope of patent application No. 1, wherein the plate (丨 丨) and 495607 Page 13