A compound represented by the following formula (1):

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[In the formula, A represents a polymerizable group. n represents an integer of 1 to 3. L represents an optionally branched (n+1)-valent linking group. Z represents an oxygen atom, or a nitrogen atom optionally having a substituent. m represents an integer of 0 or 1. X represents a single bond, an oxygen atom, a sulfur atom, a carbon atom optionally having a substituent, or a nitrogen atom optionally having a substituent. p represents an integer of 0 to 2. When p is 2, the two Xs may be the same or different. Y.sup.1 and Y.sup.2 are each independently a benzene ring, a naphthalene ring, or a phenanthrene ring. When Y.sup.1 or Y.sup.2 is a benzene ring, a or b corresponding to Y.sup.1 or Y.sup.2 is an integer of 0 to 4. When Y.sup.1 or Y.sup.2 is a naphthalene ring, a or b corresponding to Y.sup.1 or Y.sup.2 is an integer of 0 to 6. When Y.sup.1 or Y.sup.2 is a phenanthrene ring, a or b corresponding to Y.sup.1 or Y.sup.2 is an integer from 0 to 8. R.sup.1 and R.sup.2 each independently represent an aromatic ring group optionally having a substituent. When a and b are 2 or more, a plurality of R.sup.1s and R.sup.2s may be the same or different from each other. In the formula, Y.sup.1 and Y.sup.2 are not both benzene rings and a and b are not both 0.]

A detection circuit may be configured to receive an input signal indicative of a data state and to detect the data state using charge sharing between two capacitors to achieve detection with threshold compensation. The detection circuit may include semi-latch circuitry and boosting circuitry to expedite the detection, thereby achieving high speed at low power consumption and low circuit size.