The following discussion and analysis of our financial condition and results of
operations should be read in conjunction with the section entitled "Selected
Financial Data" in this report and our Consolidated Financial Statements and
related notes to this report. This discussion and analysis contains
forward-looking statements based on our current expectations, assumptions,
estimates and projections. These forward-looking statements involve risks and
uncertainties. Our actual results could differ materially from those indicated
in these forward-looking statements as a result of certain factors, as more
fully discussed in Item 1A of this report, entitled "Risk Factors."

OVERVIEW



We are a leader in the research, development and commercialization of organic
light emitting diode (OLED), technologies and materials for use in display
applications, such as mobile phones, televisions, wearables, tablets, portable
media devices, notebook computers, personal computers, and automotive
applications, as well as specialty and general lighting products. Since 1994, we
have been engaged and expect to continue to be primarily engaged, in funding and
performing research and development activities relating to OLED technologies and
materials, and commercializing these technologies and materials. We derive our
revenue primarily from the following:

• sales of OLED materials for evaluation, development and commercial


            manufacturing;


  • intellectual property and technology licensing;


        •   technology development and support, including third-party
            collaboration efforts and providing support to third parties for
            commercialization of their OLED products; and


        •   contract research services in the areas of chemical materials
            synthesis research, development and commercialization for non-OLED
            applications.


Material sales relate to our sale of OLED materials for incorporation into our
customers' commercial OLED products or for their OLED development and evaluation
activities. Material sales are generally recognized at the time title passes,
which is typically at the time of shipment or at the time of delivery, depending
upon the contractual agreement between the parties.

We receive license and royalty payments under certain commercial, development
and technology evaluation agreements, some of which are non-refundable advances.
These payments may include royalty and license fees made pursuant to license
agreements and also license fees included as part of certain commercial supply
agreements. These payments are included in the estimate of total contract
consideration by customer and recognized as revenue over the contract term based
on material units sold at the estimated per unit fee over the life of the
contract.

In 2018, we entered into a commercial license agreement with Samsung Display
Co., Ltd. (SDC). This agreement, which covers the manufacture and sale of
specified OLED display materials, was effective as of January 1, 2018 and lasts
through the end of 2022 with an additional two-year extension option. Under this
agreement, we are being paid a license fee, payable in quarterly installments
over the agreement term of five years. The agreement conveys to SDC the
non-exclusive right to use certain of our intellectual property assets for a
limited period of time that is less than the estimated life of the assets.

At the same time that we entered into the current patent license agreement with
SDC, we also entered into a material purchase agreement with SDC. Under the
material purchase agreement, SDC agrees to purchase from us a minimum amount of
phosphorescent emitter materials for use in the manufacture of licensed
products. This minimum commitment is subject to SDC's requirements for
phosphorescent emitter materials and our ability to meet these requirements over
the term of the supplemental agreement.

In 2015, we entered into an OLED patent license agreement and an OLED commercial
supply agreement with LG Display Co., Ltd. (LG Display), which were effective as
of January 1, 2015. The agreements have a term that is set to expire by the end
of 2022. The patent license agreement provides LG Display a non-exclusive,
royalty bearing portfolio license to make and sell OLED displays under our
patent portfolio. The patent license calls for license fees, prepaid royalties
and running royalties on licensed products. The agreements include customary
provisions relating to warranties, indemnities, confidentiality, assignability
and business terms. The agreements provide for certain other minimum obligations
relating to the volume of material sales anticipated over the life of the
agreements as well as minimum royalty revenue to be generated under the patent
license agreement. We generate revenue under these agreements that are
predominantly tied to LG Display's sales of OLED licensed products. The OLED
commercial supply agreement provides for the sales of materials for use by LG
Display, which may include phosphorescent emitters and host materials.

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In 2016, we entered into long-term, multi-year OLED patent license and material
purchase agreements with Tianma Micro-electronics Co., Ltd. (Tianma). Under the
license agreement, we have granted Tianma non-exclusive license rights under
various patents owned or controlled by us to manufacture and sell OLED display
products. The license agreement calls for license fees and running royalties on
Tianma's sales of licensed products. Additionally, we supply phosphorescent OLED
materials to Tianma for use in its licensed products.

In 2017, we entered into long-term, multi-year agreements with BOE Technology
Group Co., Ltd. (BOE). Under these agreements, we have granted BOE non-exclusive
license rights under various patents owned or controlled by us to manufacture
and sell OLED display products. We also supply phosphorescent OLED materials to
BOE for use in its licensed products.

In 2018, we entered into long-term, multi-year OLED patent license and material
purchase agreements with Visionox Technology, Inc. (Visionox). Under the license
agreement, we have granted Visionox non-exclusive license rights under various
patents owned or controlled by us to manufacture and sell OLED display products.
The license agreement calls for license fees and running royalties on Visionox's
sales of licensed products. Additionally, we supply phosphorescent OLED
materials to Visionox for use in its licensed products.

In 2019, we entered into an evaluation and commercial supply relationship with
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
(CSOT). We have been collaborating with CSOT in the area of OLED display product
design and manufacture and expect to continue to do so.

In 2016, we acquired Adesis, Inc. (Adesis) with operations in New Castle,
Delaware. Adesis is a contract research organization (CRO) that provides support
services to the OLED, pharma, biotech, catalysis and other industries. As of
December 31, 2019, Adesis employed a team of 94 research scientists, chemists,
engineers and laboratory technicians. Prior to our acquisition of Adesis in
2016, we utilized more than 50% of Adesis' technology service and production
output. We continue to utilize a significant portion of its technology research
capacity for the benefit of our OLED technology development, and Adesis uses the
remaining capacity to operate as a CRO in the above-mentioned industries by
providing contract research services for non-OLED applications to those
third-party customers. Contract research services revenue is earned by providing
chemical materials synthesis research, development and commercialization for
non-OLED applications on a contractual basis for those third-party customers.

We also generate technology development and support revenue earned from
development and technology evaluation agreements and commercialization
assistance fees, along with, to a minimal extent, government contracts. Relating
to our government contracts, we may receive reimbursements by government
entities for all or a portion of the research and development costs we incur.
Revenues are recognized as services are performed, proportionally as research
and development costs are incurred, or as defined milestones are achieved.

We anticipate fluctuations in our annual and quarterly results of operations due to uncertainty regarding, among other factors:

• the timing, cost and volume of sales of our OLED materials;

• the timing of our receipt of license fees and royalties, as well as


            fees for future technology development and evaluation;


• the timing and magnitude of expenditures we may incur in connection


            with our ongoing research and development and patent-related
            activities; and

• the timing and financial consequences of our formation of new business


            relationships and alliances.


Critical Accounting Policies and Estimates



The discussion and analysis of our financial condition and results of operations
is based on our Consolidated Financial Statements, which have been prepared in
accordance with U.S. generally accepted accounting principles. The preparation
of these financial statements requires us to make estimates and judgments that
affect our reported assets and liabilities, revenues and expenses, and other
financial information. Actual results may differ significantly from our
estimates under other assumptions and conditions.

We believe that our accounting policies related to revenue recognition and
deferred revenue, inventories and income taxes, as described below, are our
"critical accounting policies" as contemplated by the SEC. These policies, which
have been reviewed with our Audit Committee, are discussed in greater detail
below.

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Revenue Recognition and Deferred Revenue



Material sales relate to the sale of our OLED materials for incorporation into
our customers' commercial OLED products or for their OLED development and
evaluation activities. Revenue associated with material sales is generally
recognized at the time title passes, which is typically at the time of shipment
or at the time of delivery, depending upon the contractual agreement between the
parties. Revenue may be recognized after control of the material passes in the
event the transaction price includes variable consideration. For example, a
customer may be provided an extended opportunity to stock materials prior to use
in mass production and given a general right of return not conditioned on
breaches of warranties associated with the specific product. In such
circumstances, revenue will be recognized at the earlier of the expiration of
the customer's general right of return or once it becomes unlikely that the
customer will exercise its right of return.

The rights and benefits to our OLED technologies are conveyed to the customer
through technology license agreements and material supply agreements. These
agreements are combined and the licenses and materials sold under these combined
agreements are not distinct from each other for financial reporting purposes and
as such, are accounted for as a single performance obligation. Accordingly,
total contract consideration is estimated and recognized over the contract term
based on material units sold during the period at their estimated per unit fee.
Total contract consideration includes fixed amounts designated in contracts with
customers as license fees as well as estimates of material fees and royalties to
be earned.

Various estimates are relied upon to recognize revenue. We estimate total
material units to be purchased by our customers over the contract term based on
historical trends, industry estimates and our forecast process and related
amounts to be charged. Additionally, our management estimates the total
sales-based royalties based on the estimated net sales revenue of our customers
over the contract term.

Accounting for Income Taxes

We are subject to income taxes in both the U.S. and foreign jurisdictions. Significant judgments and estimates are required in evaluating our tax positions for future realization and determining our provision for income taxes. Our income tax expense, deferred tax assets and liabilities, and reserves for unrecognized tax benefits reflect management's best assessment of estimated future taxes to be paid.



In assessing the realizability of deferred tax assets, we consider whether it is
more likely than not that some portion or all of our deferred tax assets will
not be realized. The ultimate realization of deferred tax assets is dependent on
our ability to generate future taxable income to obtain benefit from the
reversal of temporary differences, net operating loss carryforwards and tax
credits. As part of our assessment we consider the scheduled reversal of
deferred tax assets and liabilities, projected future taxable income, and tax
planning strategies.

During the year ended December 31, 2019, based on previous earnings history, a
current evaluation of expected future taxable income and other evidence, we
determined to retain the valuation allowance that relates to New Jersey research
and development credits. Actual results could differ from our assessments if
adequate taxable income is generated in future periods. To the extent we
establish a new valuation allowance or change a previously established valuation
allowance in a future period, income tax expense will be impacted.

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RESULTS OF OPERATIONS

For a discussion of our results of operations comparison for 2018 and 2017, refer to our Annual Report on Form 10-K for the fiscal year ended December 31, 2018 filed on February 21, 2019.

Comparison of the Years Ended December 31, 2019 and 2018





                                               Year Ended December 31,
                                                                                  (Decrease)
                                               2019                2018            Increase
REVENUE                                    $     405,177       $    247,414     $      157,763
COST OF SALES                                     75,374             53,541             21,833
Gross margin                                     329,803            193,873            135,930
OPERATING EXPENSES:
Research and development                          71,276             53,717             17,559
Selling, general and administrative               59,613             46,999             12,614
Amortization of acquired technology and
other intangible assets                           21,962             21,962                  -
Patent costs                                       6,833              7,464               (631 )
Royalty and license expense                       11,776              6,996              4,780
Total operating expenses                         171,460            137,138             34,322
OPERATING INCOME                                 158,343             56,735            101,608
Interest income, net                              10,795              7,659              3,136
Other income (expense), net                          767                (83 )              850
Interest and other income, net                    11,562              7,576              3,986
INCOME BEFORE INCOME TAXES                       169,905             64,311            105,594
INCOME TAX EXPENSE                               (31,601 )           (5,471 )          (26,130 )
NET INCOME                                 $     138,304       $     58,840     $       79,464




Revenue

During the year ended December 31, 2019, we recognized revenue of $405.2
million, an increase of $157.8 million from $247.4 million in the year ended
December 31, 2018. The increase in revenue was due to higher material sales as a
result of stronger demand in the OLED display market.

Revenue derived from OLED sales comprised 97% of total revenue for the year
ended December 31, 2019 as compared to 95% for the year ended December 31, 2018.
The remaining portion of our revenue was derived from contract research
services. Revenue from contract research services consists of revenue earned by
our subsidiary, Adesis, which provides support services to the pharma, biotech,
catalysis and other industries on a contractual basis for those third-party
customers.

Cost of Sales



Cost of sales for the year ended December 31, 2019 increased by $21.8 million as
compared to the year ended December 31, 2018, primarily due to an increase in
the level of material sales. Included in the cost of sales for the years ended
December 31, 2019 and 2018, was an increase in inventory reserve of $5.9 million
and $3.6 million, respectively, due to excess inventory levels in certain
products. As a result of the increase in material sales, gross margin for the
year ended December 31, 2019, increased by $135.9 million as compared to the
year ended December 31, 2018, with gross margin as a percentage of revenue
increasing to 81% from 78%.

Research and development



Research and development expenses increased to $71.3 million for the year ended
December 31, 2019, as compared to $53.7 million for the year ended December 31,
2018. The increase in research and development expenses was primarily due to
higher employee-related compensation expenses and operating costs, including
increased contract research activity.

Selling, general and administrative



Selling, general and administrative expenses increased to $59.6 million for the
year ended December 31, 2019, as compared to $47.0 million for the year ended
December 31, 2018. The increase in selling, general and administrative expenses
was primarily due to higher employee-related compensation expenses.

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Amortization of acquired technology and other intangible assets

Amortization of acquired technology and other intangible assets was $22.0 million for both of the years ended December 31, 2019 and 2018. See Note 7 in Notes to Consolidated Financial Statements for further discussion.

Patent costs



Patent costs decreased to $6.8 million for the year ended December 31, 2019, as
compared to $7.5 million for the year ended December 31, 2018. The decrease was
primarily due to lower outside counsel fees partially offset by higher talent
related maintenance costs and higher internal patent prosecution related costs.

Royalty and license expense



Royalty and license expense increased to $11.8 million for the year ended
December 31, 2019, as compared to $7.0 million for the year ended December 31,
2018. The increase was due to increased royalties incurred under our amended
license agreement with Princeton, USC, and Michigan, resulting from an increase
in qualifying material sales. See Note 10 in Notes to Consolidated Financial
Statements for further discussion.

Interest and other income, net



Interest income, net was $10.8 million for the year ended December 31, 2019, as
compared to $7.7 million for the year ended December 31, 2018. The increase in
interest income, net was primarily due to the increase in available-for-sale
investments held during the year ended December 31, 2019 over amounts held
during 2018. Other income (expense), net primarily consisted of net exchange
gains and losses on foreign currency transactions and rental income. We recorded
other income, net of $767,000 for the year ended December 31, 2019, as compared
to other expense, net of $83,000 for the year ended December 31, 2018.

Income tax expense



We are subject to income taxes in both the United States and foreign
jurisdictions. The effective income tax rate was an expense of 18.6% and 8.5%
for the years ended December 31, 2019 and 2018, respectively, and we recorded
income tax expense of $31.6 million and $5.5 million, respectively, for those
periods. The recorded amounts include deductions for employee share awards in
excess of compensation costs ("windfalls") under Accounting Standards Update
(ASU) No. 2016-09. For the year ended December 31, 2019, without the $3.0
million benefit of ASU No. 2016-09, the effective income tax rate and income tax
expense would have been 20.4% and $34.6 million, respectively, and for the year
ended December 31, 2018, without the $1.1 million benefit of ASU No. 2016-09,
the effective income tax rate and income tax expense would have been 10.2% and
$6.6 million, respectively.

The Company incurred Korean withholding tax of $14.9 million for both of the
years ended December 31, 2019 and 2018, which is currently being appealed based
on the interpretation of the Korean - U. S. tax treaty and recent Korean Supreme
Court decisions.

Liquidity and Capital Resources



Our principal sources of liquidity are our cash and cash equivalents and our
short-term investments. As of December 31, 2019, we had cash and cash
equivalents of $131.6 million and short-term investments of $514.5 million, for
a total of $646.1 million. This compares to cash and cash equivalents of $211.0
million and short-term investments of $304.3 million, for a total of $515.3
million, as of December 31, 2018.

Cash provided by operating activities for the year ended December 31, 2019 was
$193.9 million resulting from $138.3 million of net income and $139.5 million
due to changes in our operating assets and liabilities, partially offset by a
$83.9 million reduction due to non-cash items including amortization of deferred
revenue, amortization of intangibles and stock-based compensation. Changes in
our operating assets and liabilities related to an increase in deferred revenue
of $157.3 million, an increase in accounts payable and accrued expenses of $15.5
million, an increase in other liabilities of $12.4 million and a decrease in
inventory of $109,000, partially offset by an increase in other assets of $28.5
million and an increase in accounts receivable of $17.3 million.

Cash provided by operating activities for the year ended December 31, 2018 was
$121.8 million resulting from $58.8 million of net income and $95.3 million due
to changes in our operating assets and liabilities, partially offset by a $32.3
million reduction due to non-cash items including amortization of deferred
revenue, amortization of intangibles and stock-based compensation. Changes in
our operating assets and liabilities related to an increase in deferred revenue
of $130.6 million, an increase in other liabilities of $29.7 million, a decrease
in deferred income taxes of $20.7 million, a decrease in accounts receivable of
$9.2 million and an increase in

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accounts payable and accrued expenses of $1.6 million, partially offset by an
increase in other assets of $59.1 million and an increase in inventory of $37.4
million.

Cash used in investing activities was $238.7 million for the year ended December
31, 2019, as compared to $21.0 million for the year ended December 31, 2018. The
increase was due to the timing of maturities and purchases of investments
resulting in net purchases of $208.3 million for the year ended December 31,
2019, as compared to net sales of $4.4 million for the year ended December 31,
2018, and an increase in purchases of intangibles and property, plant and
equipment of $5.0 million for the year ended December 31, 2019 compared to the
year ended December 31, 2018. The increase in property, plant and equipment
purchases during 2019 was primarily due to the purchase of additional property
in Ewing, New Jersey as part of our plan to expand operations.

Cash used in financing activities was $34.6 million for the year ended December
31, 2019, as compared to $22.6 million for the year ended December 31, 2018. The
increase was due to an increase in the cash payment of dividends in the current
year of $7.5 million, an increase in the payment of withholding taxes related to
stock-based compensation to employees of $4.4 million and an increase in the
repurchase of common stock of $172,000, partially offset by an increase in
proceeds from the issuance of common stock of $91,000.

Working capital was $630.9 million as of December 31, 2019, compared to $501.7
million as of December 31, 2018. The increase was primarily due to an increase
in short-term investments, accounts receivable and other current assets,
partially offset by a decrease in cash and cash equivalents and an increase in
deferred revenue and accrued expenses.

We anticipate, based on our internal forecasts and assumptions relating to our
operations (including, among others, assumptions regarding our working capital
requirements, the progress of our research and development efforts, the
availability of sources of funding for our research and development work, and
the timing and costs associated with the preparation, filing, prosecution,
maintenance, defense and enforcement of our patents and patent applications),
that we have sufficient cash, cash equivalents and short-term investments to
meet our obligations for at least the next twelve months.

We believe that potential additional financing sources for us include long-term
and short-term borrowings, public and private sales of our equity and debt
securities and the receipt of cash upon the exercise of outstanding stock
options. It should be noted, however, that additional funding may be required in
the future for research, development and commercialization of our OLED
technologies and materials, to obtain, maintain and enforce patents respecting
these technologies and materials, and for working capital and other purposes,
the timing and amount of which are difficult to ascertain. There can be no
assurance that additional funds will be available to us when needed, on
commercially reasonable terms or at all, particularly in the current economic
environment.

Contractual Obligations

As of December 31, 2019, we had the following contractual commitments (in
thousands):



                                                                 Payments Due by Period
                                                      Less than                                       More than 5

      Contractual Obligations            Total         1 year         1-3 years       3-5 years          years
Estimated retirement plan benefit
payments                               $  71,501     $         -     $     8,065     $     9,236     $      54,200
Lease obligations                         10,347           1,958           2,487           2,077             3,825
Purchasing obligations                    22,035          22,035               -               -                 -
Research related obligations               5,628           5,253             375               -                 -
Minimum royalty obligation (1)               500             100             200             200         $100/year
Total (2)                              $ 110,011     $    29,346     $    11,127     $    11,513     $      58,025

(1) Under the 1997 Amended License Agreement, we are obligated to pay Princeton

minimum royalties of $100,000 per year until the agreement is no longer in

effect. The agreement has no scheduled expiration date.

(2) See Note 16 to the Consolidated Financial Statements for discussion of

obligations upon termination of employment of executive officers as a result

of a change in our control.

Off-Balance Sheet Arrangements



As of December 31, 2019, we had no off-balance sheet arrangements in the nature
of guarantee contracts, retained or contingent interests in assets transferred
to unconsolidated entities (or similar arrangements serving as credit, liquidity
or market risk support to unconsolidated entities for any such assets), or
obligations (including contingent obligations) arising out of variable interests
in unconsolidated entities providing financing, liquidity, market risk or credit
risk support to us, or that engage in leasing, hedging or research and
development services with us.

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Recently Issued Accounting Pronouncements

Recently issued accounting pronouncements are addressed in Note 2 in the Notes to Consolidated Financial Statements.

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