Information output apparatus and method

An information output method, the method being performed by at least one processor executing instructions stored in a memory, the method comprising:

• calculating a series of braille information as an activation area on a plurality of expression members protruding or retracting by moving in at least one direction and being sensed by a user when protruding or retracting;
• calculating a retraction maintained position of at least one expression member, for which retraction is maintained, in at least one selected from the space between braille columns, the space between braille rows, and the space between braille paragraphs as a non-activation area in the activation area;
• and
• controlling actuation of expression members corresponding to the activation area among the plurality of expression members to protrude or retract and controlling actuation of expression members corresponding to the non-activation area among the plurality of expression members to retract,
• wherein, the non-activation area comprises a first non-activation area, a second non- activation area, a third non-activation area, and a fourth non-activation area,
• wherein the first non-activation area includes expression members arranged in between columns of respective braille,
• wherein the second non-activation area includes expression members arranged in between rows of respective braille,
• wherein the third non-activation area includes expression members arranged in between paragraphs of braille,
• wherein the fourth non-activation area, in order to separate an image displayed in the first display area from a braille information displayed in the second display area, includes expression members arranged in between the first display area and the second display area, and
• wherein the sizes of the first non-activation area, the second non-activation area, the third non-activation area, and the fourth non-activation area are different.