Method of manufacturing a display device and intermediate product used therefore

A method of manufacturing a display device, the method comprising:

• preparing an intermediate product where a pair of inorganic substrates which faces each other in an opposed manner is provided and a sealed space is formed by an organic sealing member between the pair of inorganic substrates;
• and
• cutting the pair of inorganic substrates outside the sealed space, wherein
• a circuit for an image display is formed on at least one of opposedly facing surfaces of the pair of inorganic substrates in the sealed space,
• the intermediate product includes a flow passage which is defined by a surface of at least one of the pair of inorganic substrates and the organic sealing member outside the sealed space, and
• the step of cutting the pair of inorganic substrates includes forming a groove by allowing an etchant for an inorganic material to flow into the flow passage and by etching the surface of at least one of the pair of inorganic substrates along the flow passage.