NOVELTY - A photocurable composition contains specific copolymer(s) as an alkaline-soluble photoresist, a photocurable monomer, a photoinitiator and a solvent.    USE - For liquid crystal display element and solid-state image pick-up (both claimed).    ADVANTAGE - The photocurable composition has excellent photocurability, developability, application property, uniformity, liquid-saving property and permeability.    DETAILED DESCRIPTION - A photocurable composition contain as an alkaline-soluble photoresist, a photocurable monomer, a photoinitiator and a solvent. The alkaline-soluble photoresist is a copolymer(s) chosen from compound (1-1), compound (1-2) and compound (1-3). The compound (1-1) contains structural units of formulae (a1, a2, b1, b2, c1 and d). The compound (1-2) contains structural units of formulae (a1, a2, b1, b2, c2 and d). The compound (1-3) contains structural units of formulae (a1, a2, b1, b2, c3, c4 and d). The mol% of total of structural units (a1,a2), total of structural units (b1,b2), structural unit (c1), structural unit (c2), total of structural units (c3,c4) and structural unit (d) is 10-70, 5-40, 5-40, 5-40, 5-40 and 5-30, respectively.    R = H or methyl;    R1 = 1-18C alkyl, phenyl, phenyl substituted by 1-4C alkyl or alkoxyl, 7-12C aryl, or 7-12C aralkyl;    R2, R4 = 1-18C alkylene, phenyl carbamate containing 1-4C alkyl as substituent, or carbamate having 3-18C alicyclic;    R3 = 2-16C linear or branched alkylene;    R5 = 1-4C alkyl;    l = 2-30;    m = 0-20, or 1-20;    n = 2-20; and    X = group chosen from group of formulae (1-9).    INDEPENDENT CLAIMS are included for the following:    (1) component used for liquid crystal display element and solid-state image pick-up, obtained using photocurable composition;    (2) manufacture of component which involves forming coating-film by carrying out slit application of photocurable composition at the shape of a pattern, photocuring the obtained coating film by light irradiation, and developing alkali image using alkali developing solution.