Abstract: Provided is a method of manufacturing a liquid crystal display panel of high quality without wasting liquid crystal material. In a step for pressing both of transparent glass substrates against each other, liquid crystal spreads and air bubbles are exhausted through notch portions. A sealing material is crushed before the liquid crystal reaches the notch portions, and the notch portions are blocked. Accordingly, a gap between the transparent glass substrates is sealed in a state where the liquid crystal is filled therein. Moreover, at the same time, both of the transparent glass substrates are compressively attached to each other with the sealing material interposed therebetween.