Kopin Granted Two Key Patents on OLED Backplane Design
May 19 2020 - 6:30AM
Business Wire
Patents Enable Higher Frame Rates and Lower
Power Consumption of High-Resolution Displays for VR/AR/MR
Applications
Kopin Corporation (Nasdaq: KOPN), a leading provider of
innovative microdisplays for wearable computing applications, today
announced that it was granted two US patents (10,304,372 and
10,636,347) on “Two Rows Driving Method For Micro Display Device.”
The technology described in the patents are especially important
for designing backplanes of high-resolution OLED microdisplays
desired for virtual reality (VR), augmented (AR) and mixed reality
(MR) applications since it allows lower power consumption and high
frame rates (120 Hz) to avoid motion sickness.
The key claims of the patents relate to simultaneously writing
pixels in two separate rows of the display array during one ramp
amplifier cycle. In prior arts, pixels in only one row can be
written while all the columns are being driven by the ramp. In the
patented method, one half of the pixels in each column of the
display array are connected to one set of rows while the other half
connected to the other set of rows. The first half pixel columns
are connected to a ramp amplifier while the second half pixel
columns are connected to another ramp amplifier. This allows pixels
in the two rows in the two different sets to be written
simultaneously but also independently.
Driving two rows for each cycle of the ramp signal can reduce
the ramp frequency by half, which in turn lowers the power
consumption of the ramp amplifier by half. This is important
because the ramp amplifier consumes a significant portion of the
overall display power in high resolution displays. In addition,
doubling the ramp period relaxes the timing requirements of the
pixel driver circuits, which become increasingly more challenging
for 120 Hz operation of higher resolution displays. As an example
of the benefits, the maximum backplane power for our Lightning® 2k
(2048 x 2048 resolution) OLED microdisplay is only about 450 mW at
120 Hz operation – this is about 300 mW lower than if a single row
drive method were used.
“We are delighted to have these two patents granted,” said Dr.
John C.C. Fan, CEO of Kopin Corporation. “Our innovative
double-rows driving architecture is incorporated in our Lightning
2k and 2.6k (2560 x 2560 resolution) OLED displays. With enhanced
performance thanks to this patented method, we believe our OLED
displays will play critical roles in realizing lifelike VR/AR/MR
systems that are highly desirable in an increasingly contactless
social trend.”
About Kopin
Kopin Corporation is a leading developer and provider of
innovative wearable technologies and critical components for
integration into wearable computing systems for military,
industrial and consumer products. Kopin’s technology portfolio
includes ultra-small displays, optics, speech enhancement
technology, and low-power ASICs. For more information, please visit
Kopin’s website at www.kopin.com.
Forward-Looking Statements
Statements in this press release may be considered
“forward-looking statements” within the meaning of Section 27A of
the Securities Act of 1933, as amended (the “Securities Act”), and
Section 21E of the Securities Exchange Act of 1934, as amended (the
“Exchange Act”), which are subject to the safe harbor created by
such sections. Words such as “expects,” “believes,” “can,” “will,”
“estimates,” and variations of such words and similar expressions,
and the negatives thereof, are intended to identify such
forward-looking statements. We caution readers not to place undue
reliance on any such “forward-looking statements,” which speak only
as of the date made, and advise readers that these forward-looking
statements are not guarantees of future performance and involve
certain risks, uncertainties, estimates, and assumptions by us that
are difficult to predict. These forward-looking statements may
include statements with respect to: our belief that our OLED
displays will play critical roles in realizing lifelike VR/AR/MR
systems that are highly desirable in an increasingly contactless
social trend. Various factors, some of which are beyond our
control, could cause actual results to differ materially from those
expressed in, or implied by, such forward-looking statements. All
such forward-looking statements, whether written or oral, and
whether made by us or on our behalf, are expressly qualified by
these cautionary statements and any other cautionary statements
that may accompany the forward-looking statements. In addition, we
disclaim any obligation to update any forward-looking statements to
reflect events or circumstances after the date of this press
release, except as may otherwise be required by the federal
securities laws. These forward-looking statements are only
predictions, subject to risks and uncertainties, and actual results
could differ materially from those discussed. Important factors
that could affect performance and cause results to differ
materially from management's expectations are described in Part I,
Item 1A. Risk Factors; Part II, Item 7. Management’s Discussion and
Analysis of Financial Condition and Results of Operations; and
other parts of our Annual Report on Form 10-K for the fiscal year
ended December 28, 2019, or as updated from time to time in the
Company’s Securities and Exchange Commission filings.
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Kopin Corporation Richard Sneider, 508-870-5959 Treasurer and
Chief Financial Officer Richard_Sneider@kopin.com or Market Street
Partners Joann Horne, 415-445-3233
JHorne@marketstreetpartners.com
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