Substrate and a liquid crystal display panel capable of being cut by using a laser and a method for manufacturing the same
a technology of liquid crystal display panel and substrate, which is applied in the direction of identification means, instruments, manufacturing tools, etc., can solve the problems of increased manufacturing cost, polarizing plate attaching failure, and panel tfts malfunctioning
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embodiment 1
[0074]FIGS. 7 and 8 are flow charts showing a process of manufacturing a liquid crystal display panel according to the embodiment of the present invention.
[0075] Referring to FIG. 7, an integrated substrate is provided at a step ST71. The integrated substrate is comprised of a parent glass substrate for a thin film transistor substrate (hereinafter, referred to as TFT substrate) having an area corresponding to an area of at least one panel and a parent glass substrate for a color filer.
[0076] The parent glass substrate for the TFT substrate includes a plurality of gate lines, a plurality of data lines formed to intersect with the gate lines, thin film transistors and pixel electrodes formed at a point that the data lines intersects with the gate lines.
[0077] The parent glass substrate also has short bars 14 disposed at each end of interconnection lines to be normal to the interconnection lines, connecting the interconnection lines with each other to prevent static charges from da...
embodiment 2
[0091] The use of laser proposed in the first embodiment is effective for cutting the substrate. However, the use of laser according to the first embodiment is less effective for cutting the interconnection lines formed in the inner surface of the substrate. Therefore, it is required to provide a panel of which interconnection lines can be cut smoothly while cutting integrated substrates or single substrates.
[0092]FIG. 10 is a schematic plan view showing a relation of the interconnection lines 106 and the cutting lines 108 on the integrated substrate for the LCD panel according to the second embodiment of the present invention. In FIG. 10, a reference numeral 104 denotes a black matrix having a square shape. The black matrix 104 is formed on one of the integrated substrates, for example on the color filter substrate, on which sealant is disposed to attach the substrates 102 together.
[0093] In FIG. 10, the interconnection lines 106, for example the data lines, adjacent to the cutti...
embodiment 3
[0112] The LCD panel proposed in the second embodiment has the interconnection lines and the liquid crystal introducing inlet positioned within the region defined by the cutting lines, which requires the LCD panel design change. However, the LCD panel according to the third embodiment of the present invention can prevent an abnormal cutting of the interconnection lines without changing of the length of the interconnection lines.
[0113]FIG. 14 is a partially sectional view of the substrate to be cut according to the third embodiment of the present invention.
[0114] Referring to FIG. 14, the glass substrate 32 is used as the substrate 142 to be cut, in which the conductive interconnection lines, for example the interconnection lines made from aluminum having a high toughness is arranged on the inner surface of the substrate 142 so that ends of the interconnection lines extend across the cutting lines. A reference character CL denotes the cutting line of the glass substrate. The substr...
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Abstract
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