| 主权项 |
1. A display device comprising:
a display unit having N adjustable screen resolutions, N being a positive integer larger than 1; a storage unit storing a setting list, the setting list recording the N adjustable screen resolutions and N display ratio parameters, each of the N adjustable screen resolutions being corresponding to one of the N display ratio parameters, each of the N display ratio parameters comprising a horizontal pixel amount per unit length and a vertical pixel amount per unit length; a processing unit electrically connected to the display unit and the storage unit, the processing unit retrieving a current screen resolution from the display unit and comparing the current screen resolution with the N adjustable screen resolutions, the processing unit selecting an i-th display ratio parameter corresponding to an i-th adjustable screen resolution of the N adjustable screen resolutions from the N display ratio parameters when the current screen resolution is identical to the i-th adjustable screen resolution, i being a positive integer smaller than or equal to N; and an image generating unit electrically connected to the display unit and the processing unit, the image generating unit generating an image according to the i-th display ratio parameter and displaying the image in the display unit; wherein a horizontal distance is between a reference point of the image and a first edge of the display unit and a vertical distance is between the reference point of the image and a second edge of the display unit when the image is displayed in the display unit, the first edge is perpendicular to the second edge, and the image generating unit multiplies the horizontal distance by the horizontal pixel amount per unit length of the i-th display ratio parameter and multiplies the vertical distance by the vertical pixel amount per unit length of the i-th display ratio parameter, so as to display the image at a fixed position in the display unit according to the reference point. |
