| 摘要 |
PURPOSE:To apply a photo resist only on one side surface without smearing the back surface of a glass substrate, by providing a washing mechanism to a back- up roll when applying a photo resist on a glass substrate for an liquid crystal display element. CONSTITUTION:The glass substrate 1 goes between the coating roll 4 and back- up roll 7 by carrier belts 3 and advances by the rotation of the both rolls simultaneously being applied by the photo resist 2 on the upper surface thereof without coating, and the photoresist deposits on the back-up roll when the roll is under idling state. Since the next glass substrate is deposited by the photo resist both on front and back surfaces, a brush 8 to wash the back-up roll 7 is contacted with the back-up roll 7. Then, the washing liquid is sent from a pump 12 and squeezed down by a squeezing roll 13 after washing. |
