Break separation apparatus and break separation method

{
  "publication_number": "US9195082B2",
  "country": "US",
  "kind": "B2",
  "title": "Break separation apparatus and break separation method",
  "abstract": "A break separation apparatus and method are provided. The apparatus comprises a vibration stage for holding at least one liquid crystal panel to be separated and vibrating the liquid crystal panel so that glass substrate of the liquid crystal panel breaks along a cutting groove. According to the apparatus and method, the cutting grooves cut on the glass substrate are substantially extended in thickness direction of the glass substrate by vibration method so as to achieve separation, which can be readily controlled and avoid contamination and damage to the liquid crystal panel.",
  "claims": [
    "1. A break separation apparatus, comprising: a vibration stage for holding at least one liquid crystal panel to be separated and vibrating the liquid crystal panel so that a glass substrate of the liquid crystal panel breaks along a cutting groove, wherein the vibration stage has one or more through holes disposed thereon, the through hole being connected to a vacuum device for fixing the liquid crystal panel onto the vibration stage by suction force generated by vacuum of the through hole; and a high frequency motor for actuating vibration of the vibration stage and the high frequency motor being connected to the vibration stage.",
    "2. The apparatus of claim 1 wherein the high frequency motor has a vibration frequency of 50˜500 Hz.",
    "3. The apparatus of claim 1 further comprising: an elastic support member disposed below the vibration stage for elastically supporting the vibration stage; and a base disposed below the elastic support member for isolating vibration of the vibration stage.",
    "4. The apparatus of claim 3 wherein the elastic support member is one or more springs disposed between the vibration stage and the base.",
    "5. A break separation method comprising following steps of: forming cutting grooves on a large block of liquid crystal panel by cutting a glass substrate of the liquid crystal panel to be separated; holding the liquid crystal panel by a vibration stage, the vibration stage having one or more through holes disposed thereon, the through hole being connected to a vacuum device for fixing the large block of liquid crystal panel onto the vibration stage by suction force generated by vacuum of the through hole; and separating the liquid crystal panel by vibrating the liquid crystal panel to be separated so that the glass substrate of the liquid crystal panel breaks along the cutting grooves, the liquid crystal panel being vibrated by a high frequency motor connected to the vibration stage that actuates vibration of the vibration stage.",
    "6. The method of claim 5 wherein the liquid crystal panel is vibrated with a vibration frequency of 50˜500 Hz."
  ],
  "description_excerpt": "The present disclosure relates to field of liquid crystal display, in particular to a break separation apparatus and break separation method.\n\nDuring fabrication of liquid crystal display (LCD), after assembling array substrate and color filter substrate, liquid crystal display panels with desired size is obtained by scribing and cutting a large block of liquid crystal panel. As shown in FIG. 1, a cutting groove 2 is formed on surface of glass substrate of the liquid crystal panel along a cutting line by a diamond roller blade 1, which is rolled and cut into the liquid crystal panel under pressure. The cutting groove 2 has a depth of 80˜110 μm in a vertical direction relative to the surface of glass substrate. The glass substrate of the liquid crystal panel has a typical thickness of 0.5 mm˜1.1 mm. Thus after the above cutting process, the whole block of liquid crystal panel with the cutting grooves will be transferred to a break separation stage where it is subjected to a break separation process so as to obtain liquid crystal display panels with final desired size. During the break separation process, the cutting groove 2 is substantially extended in a vertical direction relative to surface of glass substrate.\n\nThere are two major kinds of conventional break separation processes including contact break separation such as roller break separation and non-contact break separation.",
  "cpc": [
    "G02F 1/1333",
    "B65G 2249/04",
    "C03B 33/033",
    "G02F 1/133351"
  ],
  "ipc": [
    "C03B 33/033",
    "G02F 1/1333"
  ],
  "assignees": [
    "BOE Technology Group Co Ltd",
    "Beijing BOE Display Technology Co Ltd"
  ],
  "inventors": [
    "Xiaowang Liu",
    "Hongyan Guo",
    "Rutao Liu",
    "Zhongbo Gong",
    "Jiazhi Zhu"
  ],
  "filing_date": "2012-11-23",
  "publication_date": "2015-11-24",
  "grant_date": "2015-11-24",
  "priority_date": "2012-02-29",
  "application_number": "US-201213982562-A",
  "family_id": "46656140",
  "cited_by_count": 0,
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  ]
}