Appeal No. 1998-0750
Application 08/232,135
rewritten in independent form including all of the limitations of
the base claim and any intervening claims.
The invention pertains to a method and apparatus for
equalizing variations in the light output of pixels. Claims 1, 4
and 7 are illustrative and read as follows:
1. A method for increasing uniformity in screen brightness
within a field emission matrix addressable display panel, said
method comprising the step of:
measuring energy dissipation in a first pixel within said
display panel; and
compensating energy dissipation in a second pixel within said
display panel as a function of said measured energy dissipation in
said first pixel.
4. A system for displaying images on a matrix addressable
display panel, said system comprising:
a plurality of pixels arranged within said display panel; and
driver means for selectively illuminating said pixels,
wherein said driver means further comprises:
means for measuring current dissipation in a first pixel
within said display panel; and
means for compensating current dissipation in a second pixel
within said display panel as a function of said measured current
dissipation in said first pixel.
7. A circuit adaptable for regulating energy supplied to a
pixel within a matrix addressable display panel, said circuit
comprising:
means for comparing a first voltage signal, which is
proportional to a second voltage signal supplied to said pixel, to
a reference voltage signal; and
means for removing said second voltage signal from said pixel
in response to a comparison of said first and reference voltage
signals, wherein said removing means turns off said pixel.
2
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