Inspection apparatus for liquid crystal display panels
A technology of liquid crystal display panel and inspection device, applied in the direction of measurement device, static indicator, electronic circuit test, etc., can solve the problems of increased manufacturing cost, impossible accurate inspection, uneven temperature of heating chamber, etc.
Active Publication Date: 2009-07-01
LG DISPLAY CO LTD
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Problems solved by technology
[0019] However, a problem with this prior art inspection device for detecting orientation abnormality of an LCD panel is that, because the inspection device is located at a predetermined distance from the heating chamber, the liquid crystal display panel is exposed to the surrounding air, and the After being removed from the box, it is cooled during transport to the inspection device, making it impossible to perform accurate inspections
[0020] In addition, the prior art alignment abnormality inspection device has a problem in that since the interior of the heating chamber is exposed to ambient air while the liquid crystal display panel is removed from the case of the heating chamber, ambient air is introduced into the heating chamber, which causes heating The temperature of the chamber is not uniform
[0021] In addition, because the prior art alignment abnormality inspection device requires expensive mechanisms including automatic machinery for transporting the liquid crystal display panel from the heating chamber to the inspection party, it always increases the manufacturing cost and takes a lot of time to transport the liquid crystal display panel
Method used
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[0041] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
[0042] image 3 is a side view schematically showing the internal structure of an inspection device for a liquid crystal display panel according to an embodiment of the present invention. Figure 4 is a perspective view of main parts showing an internal structure of an inspection apparatus for a liquid crystal display panel according to an embodiment of the present invention.
[0043] refer to image 3 , an inspection apparatus for a liquid crystal display panel according to an embodiment generally includes a heating chamber 100 , an inspection unit 200 , and a panel transfer part 300 .
[0044] Each component will be described in detail below.
[0045] refer to image 3 and 4 , the heating chamber 100 receives a ...
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A liquid crystal panel inspection device is provided to minimize the temperature change of a liquid crystal panel by carrying the liquid crystal panel to an inspection unit in a closed heating chamber, thereby exactly checking defects of the liquid crystal panel. A liquid crystal panel inspection device is composed of a heating chamber(100) containing a cassette(10) in which plural liquid crystal panels are stacked, heating the liquid crystal panels up to the set temperature, and having a recessed part(110) formed at the front lower side and a panel inlet port(111) formed on the upside of the recessed part; an inspection unit(200) disposed in the recessed part of the heating chamber to receive the liquid crystal panels heated by the heating chamber and check defects of the liquid crystal panels; and a panel carrying unit(300) moving along the longitudinal direction of the heating chamber to draw out and supply the liquid crystal panel contained in the cassette to the inspection unit through the panel inlet port.
Description
technical field [0001] The present invention relates to an inspection device for a liquid crystal display (LCD) panel, and more particularly, to an inspection device for an LCD panel capable of quickly inspecting abnormal orientation of the LCD panel while maintaining the LCD panel at a uniform temperature . Background technique [0002] The increasing popularity of various portable electronic products such as mobile phones, PDAs, notebook computers, etc. has created a demand for light-weight and compact flat panel display devices. Among flat panel display devices, liquid crystal display (LCD) devices, plasma display panel (PDP) devices, field emission display (FED) devices, vacuum fluorescent display (VFD) devices, and the like have been actively developed. Among them, the LCD device is the most popular due to its mass production performance, simple driving mechanism, high-definition picture, and the like. [0003] figure 1 is a sectional view showing a prior art liquid ...
Claims
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IPC IPC(8): G02F1/13
CPCG01R31/2801G01R31/2817G02F1/1309G09G3/006
Inventor 沈昌辅郑在珉金范洙
Owner LG DISPLAY CO LTD