Head-up display apparatus
A head-up display apparatus reduces the trouble caused by horizontal separation of a display image. The head-up display apparatus ( 1 ) includes a display source ( 2 ) inside an instrument panel ( 6 ), an opening ( 7 ) on the instrument panel ( 6 ), display light from the display source ( 2 ) being emitted through the opening ( 7 ), and an opening cover ( 5 ) provided around the opening ( 7 ). At horizontal ends ( 51, 53 ) of the opening cover ( 5 ), a change in color or reflectance is provided from the opening sides ( 52 a, 54 a ) towards the outer sides ( 52 b, 54 b ).
1. A head-up display apparatus comprising:
a display source inside an instrument panel;
an opening on the instrument panel, display light from the display source being emitted through the opening; and
an opening cover provided around the opening;
wherein the opening cover has a change in reflectance increasing from the opening side towards an outer side in a horizontal direction.
2. The head-up display apparatus of claim 1 , wherein the opening cover has a change in color or reflectance from the opening side towards an outer side in a vertical direction.
3. The head-up display apparatus of claim 1 , wherein the opening cover has a gradation changing from black to a color of the instrument panel from the opening side towards the outer side.
4. The head-up display apparatus of claim 1 , wherein the display source has a change in transmittance of the display light from an inner side towards an outer side of an exit surface in a horizontal direction.
5. The head-up display apparatus of claim 4 , wherein the display source has a gradation in which transmittance of the display light reduces from the inner side towards the outer side of the exit surface in horizontal direction.
6. The head-up display apparatus of claim 1 , wherein the opening cover has a gradation of reflectance increasing from the opening side towards the outer side.
7. The head-up display apparatus of claim 1 , wherein the opening cover has at least two stages of the change in reflectance.
8. The head-up display apparatus of claim 1 , wherein the change in reflectance is provided by a pattern of vertical stripes.
9. The head-up display apparatus of claim 1 , wherein the change in reflectance is provided by a pattern of saw-tooth.