Answer: C, 1000K.
Answer analysis:
When discussing the color temperature range of full-color LED display screens, we must first clarify the definition of color temperature and the commonly used color temperature standards for LED display screens.
Color temperature is a physical quantity that describes the color of the light source, usually expressed in Kelvin (K).
Different color temperatures will present different light color effects.
Now, let's analyze according to the options provided:
A, 6500K: This color temperature value is usually classified as a cold white light range.
It provides higher lighting brightness and is suitable for places that require high-brightness lighting, such as outdoor squares. Therefore, this option is correct.
B, 7000K: This color temperature value also belongs to the cold white light or high-brightness white light range, slightly higher than 6500K, and is suitable for scenes that require high brightness and contrast, such as outdoor billboards. Therefore, this option is also correct.
C, 1000K: This color temperature value is much lower than the common LED display color temperature range.
In LED displays, such low color temperature values are not common, and it is difficult to achieve the desired visual effects in practical applications.
Generally speaking, such a low color temperature value will present a very warm yellow light, which is inconsistent with the conventional application of full-color LED display screens. Therefore, this option is likely to be wrong.
D, 7500K: This color temperature value also belongs to the cold white light range, and is higher than 6500K and 7000K, which is suitable for scenes that require higher brightness and contrast, such as stadiums.
Therefore, this option is correct.
In summary, the wrong color temperature range of the full-color LED display screen is C, 1000K.
The color temperature value represented by this option is much lower than the conventional full-color LED display screen color temperature range, and it is difficult to meet the visual needs in actual applications.
It should be noted that although the option with the wrong color temperature range is given here, in actual applications, the color temperature selection of the LED display screen should be determined according to the specific application scenario and needs to ensure the best visual effect.