Patent 11828425

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

Active provider: Google · gemini-2.5-flash

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

✓ Generated

The most relevant prior art for US patent 11828425, published or filed before its priority date of December 11, 2008, is detailed below. Determining precise anticipation under 35 U.S.C. § 102 for specific claims would require a detailed claim construction and a feature-by-feature comparison, which is beyond the scope of this analysis. However, general relevance to the key features of US11828425's independent claims (e.g., structured radiation exit area, directional emission, transparent OLED, encapsulation) is noted.

U.S. Patent Documents

  1. US6246179B1

    • Full Citation: US6246179B1, "Organic light emitting diode with a transparent anode"
    • Publication Date: June 12, 2001
    • Brief Description: This patent describes an organic light-emitting diode (OLED) having a transparent anode that is substantially transparent to visible light and is composed of a conductive polymer. The abstract further mentions the OLED can be incorporated into transparent devices such as display screens.
    • Potential Anticipation: This patent is relevant to claims involving transparent electrodes and overall transparent OLED structures, such as Independent Claim 17.

  2. US6696781B2

    • Full Citation: US6696781B2, "Organic light emitting diode for general illumination"
    • Publication Date: February 24, 2004
    • Brief Description: This patent discloses an OLED specifically designed for general illumination. It describes an OLED device that can produce a broad spectrum of light, including white light, for various lighting applications.
    • Potential Anticipation: This patent generally relates to the utility of OLEDs for illumination, which is a broad application mentioned in US11828425. It could be broadly relevant to claims describing an OLED suitable for general lighting.

  3. US6855964B2

    • Full Citation: US6855964B2, "Transparent display panel"
    • Publication Date: February 15, 2005
    • Brief Description: This patent describes a transparent display panel, which includes an organic light-emitting display device. The display device is transparent and can display information while allowing visibility through it.
    • Potential Anticipation: This patent is directly relevant to the concept of transparent organic light-emitting diodes, particularly Independent Claim 17.

  4. US7071626B2

    • Full Citation: US7071626B2, "OLED having a low work function cathode and a thick organic layer"
    • Publication Date: July 4, 2006
    • Brief Description: This patent focuses on specific structural improvements for OLEDs, specifically a low work function cathode and a thick organic layer to improve device performance. It addresses the internal structure of an OLED.
    • Potential Anticipation: This patent relates to the internal layer structure of an OLED, specifically electrodes and organic layers, which are components of the "organic layer sequence" in claims 1 and 17.

  5. US7132064B2

    • Full Citation: US7132064B2, "Organic light emitting diode with a top-emission transparent cathode structure"
    • Publication Date: November 7, 2006
    • Brief Description: This patent describes an OLED with a top-emission structure where the cathode is transparent. This allows light to be emitted from the top surface of the device through a transparent cathode.
    • Potential Anticipation: This patent is highly relevant to transparent OLEDs and specific electrode configurations, touching on elements of both Independent Claim 1 (radiation exit area) and Independent Claim 17 (transparency).

  6. US7335921B2

    • Full Citation: US7335921B2, "Organic light-emitting display with transparent anode, transparent top-emitting cathode, and light scattering layer"
    • Publication Date: February 26, 2008
    • Brief Description: This patent describes an organic light-emitting display featuring both a transparent anode and a transparent top-emitting cathode, along with a light scattering layer. This combination aims to achieve a transparent display while managing light output.
    • Potential Anticipation: This patent directly addresses transparency (relevant to Independent Claim 17) and mentions elements that can influence light emission characteristics (relevant to the "structured radiation exit area" of Independent Claim 1).

Foreign Patent Documents

  1. EP1562305A1

    • Full Citation: EP1562305A1, "Organic light emitting diode device"
    • Publication Date: August 10, 2005
    • Brief Description: This European patent application describes an OLED device, focusing on its structure and materials to improve efficiency and lifetime. It covers general aspects of OLED construction.
    • Potential Anticipation: This patent generally covers the broad field of OLED devices and their construction, which could be broadly relevant to the "organic layer sequence" and "encapsulation" elements of claims 1 and 17.

  2. EP1881655A1

    • Full Citation: EP1881655A1, "Organic light-emitting diode and luminaire"
    • Publication Date: January 23, 2008
    • Brief Description: This European patent application describes an organic light-emitting diode and its application in luminaires, suggesting its use in lighting products.
    • Potential Anticipation: This patent is relevant to the application of OLEDs in luminaires, aligning with the general field of use for the OLEDs described in US11828425, particularly aspects related to the "luminaire" definitions within the patent.

  3. KR100570180B1

    • Full Citation: KR100570180B1, "Organic Light Emitting Diode"
    • Publication Date: April 10, 2006
    • Brief Description: This Korean patent describes an organic light-emitting diode, likely detailing its structure, materials, and manufacturing process. The specific focus would need to be extracted from its full text.
    • Potential Anticipation: As a general OLED patent, it could be broadly relevant to the fundamental structure of an OLED as described in the preambles of claims 1 and 17.

  4. WO2008129202A1

    • Full Citation: WO2008129202A1, "Organic light-emitting diode"
    • Publication Date: October 30, 2008
    • Brief Description: This international patent application describes an organic light-emitting diode. The specific innovations would be in its detailed description, but the title indicates relevance to the core technology of US11828425.
    • Potential Anticipation: This patent is generally relevant to the structure and function of organic light-emitting diodes, encompassing the "organic layer sequence" and "radiation-emitting region" of claims 1 and 17.

Non-Patent Literature Documents

  1. "Highly efficient white organic light-emitting devices comprising an ultra-thin hole injection layer of molybdenum oxide and a hole transport layer of alpha-NPB doped with molybdenum oxide"

    • Full Citation: M. Helen et al., "Highly efficient white organic light-emitting devices comprising an ultra-thin hole injection layer of molybdenum oxide and a hole transport layer of alpha-NPB doped with molybdenum oxide," Journal of Applied Physics 104, 054504 (2008); 7 pages.
    • Publication Date: September 3, 2008
    • Brief Description: This scientific paper discusses advancements in white OLED technology, specifically focusing on the composition of hole injection and transport layers using molybdenum oxide.
    • Potential Anticipation: This NPL is highly relevant to the internal structure and materials of the "organic layer sequence" and "charge carrier transport layers" mentioned in US11828425, potentially anticipating elements related to the doping and materials used within the OLED structure.

  2. "Effect of MoO.sub.3 thickness on hole injection from indium-tin-oxide electrode into an organic layer of alpha-NPB in organic light-emitting diodes"

    • Full Citation: K. H. Lee et al., "Effect of MoO.sub.3 thickness on hole injection from indium-tin-oxide electrode into an organic layer of alpha-NPB in organic light-emitting diodes," Applied Physics Letters 89, 053503 (2006); 3 pages.
    • Publication Date: July 31, 2006
    • Brief Description: This paper investigates the role of molybdenum oxide (MoO3) thickness in improving hole injection from an ITO electrode into an organic layer in OLEDs.
    • Potential Anticipation: Similar to the previous NPL, this document is highly relevant to the materials and function of the "organic layer sequence" and electrode interfaces, specifically relating to hole transport and injection, as described in US11828425.

The PTAB's finding that claims 2, 4, 9-12, and 17 were unpatentable as obvious (under 35 U.S.C. § 103) in IPR2024-01095 suggests that some combination of these or similar prior art references was used to demonstrate that the claimed inventions were obvious to a person of ordinary skill in the art at the time of the invention. While the request specifically asks for § 102 anticipation, these prior art documents certainly form the foundation for obviousness challenges, and in some cases, could directly anticipate elements or entire claims if all limitations are found within a single reference. For example, patents like US6855964B2 and US7335921B2 explicitly discuss transparent OLEDs, making them strong candidates for anticipating aspects of independent claim 17. The concept of "structured radiation exit area for directional emission profile" in independent claim 1 is less explicitly covered by the titles of these selected prior art, suggesting this may be a distinguishing feature.

Generated 6/26/2026, 12:05:18 AM