Display apparatus with pixel-aligned ground mesh
Display apparatus with reduced susceptibility to electro-magnetic interference includes a display including an array of pixels and a ground mesh located in proximity to the display. The ground mesh includes a plurality of electrically connected ground lines located between the pixels, so that electro-magnetic radiation emitted or received by the display is reduced.
1. Display apparatus having an array of rows and columns of pixels with reduced susceptibility to electro-magnetic interference, comprising:
a flat-panel display formed on a substrate having conductors or active electronic components located between the pixels in the array of pixels; and
a ground mesh located in proximity to the display, the ground mesh including a plurality of electrically connected ground lines located only between the pixels and parallel to the rows or columns of the pixels in the array, so that electro-magnetic radiation emitted or received by the conductors or active electronic components of the display is reduced;
wherein the pixels are separated by inter-pixel gaps in at least one dimension and the ground lines are located in the inter-pixel gaps;
wherein the pixels are arranged in rows and columns, the rows of pixels separated by row inter-pixel gaps, the columns of pixels separated by column inter-pixel gaps, and the ground lines are located only in the row inter-pixel gaps, only in the column inter-pixel gaps, or only in both the row inter-pixel gaps and the column inter-pixel gaps; and
wherein the ground lines in the row inter-pixel gaps have a different width than the ground lines in the column inter-pixel gaps.
2. The display apparatus of claim 1 , wherein the ground lines are in a common layer.
3. The display apparatus of claim 2 , wherein the ground lines are in a common plane.
4. The display apparatus of claim 1 , wherein the ground lines are metal wires or metal traces.
5. The display apparatus of claim 1 , wherein the ground lines are micro-wires.
6. The display apparatus of claim 1 , wherein the ground lines are opaque.
7. The display apparatus of claim 1 , wherein the ground lines form an interwoven or intertwined structure.
8. The display apparatus of claim 1 , wherein the ground lines form an arrangement of electrical conductors spaced apart by regular, uniform openings.
9. The display apparatus of claim 1 , wherein the ground lines substantially fill the inter-pixel gaps.
10. The display apparatus of claim 1 , wherein the ground lines do not substantially fill the inter-pixel gaps so that the ground lines do not occlude light controlled by the pixels when viewed by a user within a pre-defined viewing angle.
11. The display apparatus of claim 1 , wherein the display further includes a display ground and the ground mesh is electrically connected to the display ground.
12. The display apparatus of claim 1 , further including a touch screen located in proximity to the ground mesh and wherein the ground mesh is located between the touch screen and the display.
13. The display apparatus of claim 1 , wherein the display apparatus further includes a touch screen and a touch-screen ground and the ground mesh is electrically connected to the touch-screen ground.
14. The display apparatus of claim 13 , wherein the display further includes a display ground and the ground mesh is electrically connected to the display ground and to the touch-screen ground.
15. The display apparatus of claim 1 , wherein the display is located within 1 mm of the ground mesh.
16. The display apparatus of claim 1 , wherein the ground lines are black.
17. The display apparatus of claim 1 , wherein the ground lines are colored.
18. The display apparatus of claim 1 , wherein the ground lines include a first electrically conductive layer and a second light-absorbing layer.
19. The display apparatus of claim 1 , wherein the display is a liquid crystal display.
20. The display apparatus of claim 1 , wherein the display is an organic light-emitting diode display.