Method and structure for improving display quality of irregular shaped panel
The present invention teaches a design method and a structure for improving display quality of an irregular shaped panel. The design method includes: disposing an initial shading layer along an edge of the panel's actual display area; for a pixel not entirely covered by the initial shading layer but having at least a sub-pixel entirely covered by the initial shading layer, setting the pixel to be turned off at all times, or extending the initial shading layer to cover the pixel; and, for a pixel and each of its sub-pixels not entirely covered by the initial shading layer, setting the pixel so that a brightness ratio among its sub-pixels is, under a same driving condition, identical or close to that among the sub-pixels of a normal pixel. The design method and structure reduce or eliminate jagged feel and color shift along an edge of the area of notch or irregularity.
1. A design method for improving display quality of an irregular shaped panel, comprising
Step 10 : disposing an initial shading layer along an edge of the panel's actual display area;
Step 20 : for a pixel not entirely covered by the initial shading layer but having at least a sub-pixel entirely covered by the initial shading layer, setting the pixel to be turned off at all times, or extending the initial shading layer to cover the pixel; and
Step 30 : for a pixel and each of its sub-pixels not entirely covered by the initial shading layer, adjusting a brightness ratio among the pixel's sub-pixels so that, the brightness ratio is identical or close to that among sub-pixels of a normal pixel not covered by the initial shading layer under a same driving condition.
2. The design method according to claim 1 , wherein Step 30 's adjusting the brightness ratio is achieved through adjusting an aperture ratio among the pixel's sub-pixels.
3. The design method according to claim 2 , wherein, for a liquid crystal display (LCD) panel, adjusting aperture ratio among the pixel's sub-pixels is achieved through adding additional shading layer to the pixel's sub-pixels; and,
for an organic light emitting diode (OLED) display panel, adjusting aperture ratio among the pixel's sub-pixels is achieved through adjusting pixel definition layer areas or adding additional pixel definition layer to the pixel's sub-pixels.
4. The design method according to claim 1 , wherein, for a LCD panel, Step 30 's adjusting the brightness ratio is achieved through adjusting pixel electrode shapes, dimensions, or areas of the pixel's sub-pixels; and,
for an OLED display panel, Step 30 's adjusting the brightness ratio is achieved through adjusting anode or cathode electrode areas of the pixel's sub-pixels.
5. The design method according to claim 1 , wherein, for a LCD panel, Step 30 's adjusting the brightness ratio is achieved through adjusting widths or lengths of ditch regions of thin film transistors (TFTs) charging pixel electrodes of the pixel's sub-pixels; and,
for an OLED display panel, Step 30 's adjusting the brightness ratio is achieved through adjusting widths or lengths of ditch regions of TFTs driving the pixel's sub-pixels.
6. The design method according to claim 1 , wherein, for a LCD panel, Step 30 's adjusting the brightness ratio is achieved through at least one of
adjusting an aperture ratio among the pixel's sub-pixels;
adjusting pixel electrode shapes, dimensions, or areas of the pixel's sub-pixels; and
adjusting widths or lengths of ditch regions of TFTs charging pixel electrodes of the pixel's sub-pixels.
7. The design method according to claim 1 , wherein, for an OLED panel, Step 30 's adjusting the brightness ratio is achieved through at least one of
adjusting an aperture ratio among the pixel's sub-pixels;
adjusting anode or cathode electrode areas of the pixel's sub-pixels;
adjusting widths or lengths of ditch regions of TFTs driving the pixel's sub-pixels.
8. A structure for improving display quality of an irregular shaped panel, comprising an initial shading layer along an edge of the panel's actual display area, a plurality of normal pixels not covered by the initial shading layer, a plurality of pixels entirely covered by the initial shading layer, and a plurality of pixels partially covered by the initial shading layer, wherein the pixels partially covered by the initial shading layer comprises first pixels or second pixels; the first pixel has at least a sub-pixel entirely covered by the initial shading layer; the first pixels are set to be always turned off or are covered entirely by adding additional shading layer; the second pixels has all of their sub-pixels partially covered by the initial shading layer; the second pixels are adjusted to have a brightness ratio among their sub-pixels identical or close to that among sub-pixels of a normal pixel under a same driving condition.
9. The structure according to claim 8 , wherein the second pixels are adjusted to have the brightness ratio through adjusting an aperture ratio among the second pixels' sub-pixels.
10. The structure according to claim 9 , wherein, for a LCD panel, adjusting the aperture ratio is achieved through adding additional shading layers to the second pixels' sub-pixels; and,
for an OLED display panel, adjusting the aperture ratio is achieved through adjusting pixel definition layer areas or adding additional pixel definition layers to the second pixels' sub-pixels.
11. The structure according to claim 8 , wherein, for a LCD panel, the second pixels are adjusted to have the brightness ratio through adjusting pixel electrode shapes, dimensions, or areas of the second pixels' sub-pixels; and,
for an OLED display panel, the second pixels are adjusted to have the brightness ratio through adjusting anode or cathode electrode areas of the second pixels' sub-pixels.
12. The structure according to claim 8 , wherein, for a LCD panel, the second pixels are adjusted to have the brightness ratio through adjusting widths or lengths of ditch regions of TFTs charging pixel electrodes of the pixels' sub-pixels; and,
for an OLED display panel, the second pixels are adjusted to have the brightness ratio through adjusting widths or lengths of ditch regions of TFTs driving the second pixels' sub-pixels.
13. The structure according to claim 8 , wherein, for a LCD panel, the second pixels are adjusted to have the brightness ratio through at least one of
adjusting an aperture ratio among the second pixels' sub-pixels;
adjusting pixel electrode shapes, dimensions, or areas of the second pixels' sub-pixels; and
adjusting widths or lengths of ditch regions of TFTs charging pixel electrodes of the second pixels' sub-pixels.
14. The structure according to claim 8 , wherein, for an OLED display panel, the second pixels are adjusted to have the brightness ratio through at least one of
adjusting an aperture ratio among the second pixels' sub-pixels;
adjusting anode or cathode electrode areas of the second pixels' sub-pixels; and
adjusting widths or lengths of ditch regions of TFTs driving the second pixels' sub-pixels.