Transparent display system and operation method thereof

An operation method of a transparent display system, comprising:

• capturing a field luminance and a display information luminance of display information, wherein the field luminance comprises a foreground reflective light luminance and a background transmissive light luminance;
• determining whether a luminance contrast of the display information falls within a range from a lower boundary to an upper boundary, wherein the luminance contrast of the display information equals to the field luminance plus the display information luminance and then divided by the field luminance;
• if the luminance contrast of the display information is determined falling within the range from the lower boundary to the upper boundary, the display information being output;
• and
• if the luminance contrast of the display information is determined not falling within the range from the lower boundary to the upper boundary, a luminance contrast optimization procedure being performed.

An operation method of a transparent display system, comprising:

• capturing a field luminance and a display information luminance of display information, wherein the field luminance comprises a foreground reflective light luminance and a background transmissive light luminance;
• determining whether a luminance contrast of the display information may be recognized by a human eye, wherein the luminance contrast of the display information equals to the field luminance plus the display information luminance and then divided by the field luminance;
• if the luminance contrast of the display information is determined being recognized by the human eye, the display information being output;
• and
• if the luminance contrast of the display information is determined not being recognized by the human eye, the display information luminance being optimized, a display information size being optimized, a location of the display information being changed or the field luminance being optimized.