An industrial electronic apparatus comprising: a housing; a display panel that is attached to the housing, and includes a design portion including a character or a graphic; a light source that is provided behind the display panel, and can be turned on and off, wherein the display panel includes: a transparent plate having a back face located on the light source side and a front face located on a side opposite to the light source; the industrial electronic apparatus being characterized in that the display panel further includes: a light shielding portion that is located on the back face side of the transparent plate, covers a portion, of the back face of the transparent plate, that does not correspond to the design portion, and includes a window that is formed at a portion, of the back face of the transparent plate, that corresponds to the design portion; and a light diffusing portion that is located on the back face side of the transparent plate, and covers a portion, of the back face of the transparent plate, that corresponds to the design portion, wherein the front face of the transparent plate is exposed without being covered by another member or layer, the light shielding portion is constituted by a printed layer that is printed on the back face of the transparent plate; and the light diffusing portion is constituted by a printed layer that is printed on the back face of the transparent plate, filling out the window. a housing; a display panel that is attached to the housing, and includes a design portion including a character or a graphic; a light source that is provided behind the display panel, and can be turned on and off, wherein the display panel includes: a transparent plate having a back face located on the light source side and a front face located on a side opposite to the light source; the industrial electronic apparatus being characterized in that the display panel further includes: a light shielding portion that is located on the back face side of the transparent plate, covers a portion, of the back face of the transparent plate, that does not correspond to the design portion, and includes a window that is formed at a portion, of the back face of the transparent plate, that corresponds to the design portion; and a light diffusing portion that is located on the back face side of the transparent plate, and covers a portion, of the back face of the transparent plate, that corresponds to the design portion, wherein the front face of the transparent plate is exposed without being covered by another member or layer, the light shielding portion is constituted by a printed layer that is printed on the back face of the transparent plate; and the light diffusing portion is constituted by a printed layer that is printed on the back face of the transparent plate, filling out the window. a transparent plate having a back face located on the light source side and a front face located on a side opposite to the light source; the industrial electronic apparatus being characterized in that the display panel further includes: a light shielding portion that is located on the back face side of the transparent plate, covers a portion, of the back face of the transparent plate, that does not correspond to the design portion, and includes a window that is formed at a portion, of the back face of the transparent plate, that corresponds to the design portion; and a light diffusing portion that is located on the back face side of the transparent plate, and covers a portion, of the back face of the transparent plate, that corresponds to the design portion, wherein the front face of the transparent plate is exposed without being covered by another member or layer, the light shielding portion is constituted by a printed layer that is printed on the back face of the transparent plate; and the light diffusing portion is constituted by a printed layer that is printed on the back face of the transparent plate, filling out the window. a light shielding portion that is located on the back face side of the transparent plate, covers a portion, of the back face of the transparent plate, that does not correspond to the design portion, and includes a window that is formed at a portion, of the back face of the transparent plate, that corresponds to the design portion; and a light diffusing portion that is located on the back face side of the transparent plate, and covers a portion, of the back face of the transparent plate, that corresponds to the design portion, wherein the front face of the transparent plate is exposed without being covered by another member or layer, the light shielding portion is constituted by a printed layer that is printed on the back face of the transparent plate; and the light diffusing portion is constituted by a printed layer that is printed on the back face of the transparent plate, filling out the window.