Bishop Display Tech LLC v. LG Display Co., Ltd. et al.

This patent infringement lawsuit, Bishop Display Tech LLC v. LG Display Co., Ltd. et al., centers on alleged infringement of display technology patents. The plaintiff, Bishop Display Tech LLC, is identified as a patent assertion entity (PAE) or Non-Practicing Entity (NPE), managed by the principals of the Texas-based monetization firm IP Edge LLC. Bishop Display Tech acquired the asserted patents from IP Bridge, Inc., with the original ownership tracing back to Panasonic and Seiko Epson. The defendants include LG Display Co., Ltd., a major South Korean manufacturer of thin-film-transistor liquid crystal display (TFT-LCD) and OLED panels, and its largest shareholder, LG Electronics, Inc., a global South Korean multinational corporation known for consumer electronics and home appliances such as televisions. The third defendant, New Optics, Ltd. (also referred to as WOOREE BIO (New Optics)), is a South Korean company involved in semiconductor and electronic component manufacturing, specifically producing LCD flat panel display products. The accused products, services, or technology are centered around TFT-LCDs and products incorporating them, including liquid crystal modules (LCMs), monitors, smartphones, tablets, and TVs.

The lawsuit, filed on February 10, 2024, in the U.S. District Court for the Eastern District of Texas (Case Number 2:24-cv-00085), asserts six patents, including US Patent 8,093,830. The specifically named US Patent 8,093,830, titled "Semiconductor Light Source Driving Apparatus and Semiconductor Light Source Driving Method," describes a system and method for controlling the output voltage of a power supply to drive a semiconductor light source, such as an LED or laser diode, based on measured current and impedance. Other patents asserted in this particular case include US Patents 6,819,377; 6,822,706; 7,414,682; 7,583,347; and 7,995,047. While a specific judge for this case was not confirmed, similar and related patent cases filed by Bishop Display Tech in the Eastern District of Texas, such as 2:25-cv-00310, are presided over by Judge Rodney Gilstrap, a prominent judge in this venue. The Eastern District of Texas remains a favored venue for patent owners due to its reputation for efficient "rocket docket" scheduling and plaintiff-friendly outcomes. This district has also seen a strategy where plaintiffs sue foreign affiliates to bypass venue restrictions established by TC Heartland v. Kraft Foods Group Brands LLC.

This case is notable as part of a broader pattern of patent assertions by Bishop Display Tech LLC, an entity linked to IP Edge LLC, which frequently engages in "file-and-settle" litigation. The plaintiff often files lawsuits in "couplets" against major display and electronics manufacturers. For instance, Bishop Display Tech initiated two cases against LG Display, LG Electronics, and New Optics (including this one), and separate pairs of cases against Heesung Electronics, Samsung, and BOE Technology, all within the Eastern District of Texas. The complaint specifically alleges willful infringement, claiming that LG entities had prior knowledge of several of the patents-in-suit as early as February 2017, through notification from a former patent owner, Godo Kaisha IP Bridge 1. This ongoing litigation reflects the sustained efforts of NPEs to monetize patent portfolios related to fundamental display technologies widely used across the consumer electronics industry.

The patent infringement litigation of Bishop Display Tech LLC v. LG Display Co., Ltd. et al. (2:24-cv-00085, U.S. District Court for the Eastern District of Texas) commenced on February 10, 2024. The case is ongoing and involves U.S. Patent No. 8,093,830. Bishop Display Tech LLC is known to be an entity that has engaged in numerous patent litigation campaigns.

Here's a chronological overview of the key legal developments and current posture:

Filing & Initial Pleadings:

• 2024-02-10: Bishop Display Tech LLC filed its patent infringement complaint against LG Display Co., Ltd., LG Electronics, Inc., and New Optics, Ltd.

Pre-trial Motions of Substance:
No substantive pre-trial motions, such as motions to dismiss, transfer, stay pending IPR, or for summary judgment, have been publicly reported or identified through the available search results as of May 23, 2026, for this specific case.

Claim Construction (Markman) Outcomes:
The case has not yet reached the claim construction (Markman) stage, or at least no outcomes have been publicly reported in the provided search results.

Discovery Milestones with Strategic Significance:
No specific discovery milestones with strategic significance have been publicly reported or identified through the available search results.

Trial Events, Verdict, and Post-Trial Motions:
The case is still in its early stages, and there have been no reported trial events, verdicts, or post-trial motions.

Settlement, Dismissal, Judgment, or Appeal – Final Disposition or Present Posture:
The case remains active and ongoing in the U.S. District Court for the Eastern District of Texas. There is no information available regarding a settlement, dismissal, judgment, or appeal in this case.

Parallel PTAB IPR/PGR Proceedings:
While Bishop Display Tech LLC has been involved in previous IPR proceedings related to other patents (e.g., IPR2022-00508, which was terminated-settled), there is no public information found in the provided search results indicating any parallel PTAB IPR or PGR proceedings specifically challenging U.S. Patent No. 8,093,830, which is at issue in this litigation.## Legal Developments and Outcome for Bishop Display Tech LLC v. LG Display Co., Ltd. et al.

The patent infringement lawsuit, Bishop Display Tech LLC v. LG Display Co., Ltd. et al., case number 2:24-cv-00085, was filed in the U.S. District Court for the Eastern District of Texas on February 10, 2024. The case remains ongoing as of May 23, 2026. This litigation involves U.S. Patent No. 8,093,830 and is part of a broader series of patent enforcement actions by Bishop Display Tech LLC, a known non-practicing entity.

Key Legal Developments:

• Filing & Initial Pleadings:

  • 2024-02-10: Bishop Display Tech LLC initiated the lawsuit by filing a patent infringement complaint against LG Display Co., Ltd., LG Electronics, Inc., and New Optics, Ltd. in the Eastern District of Texas. Details regarding the defendants' answers or any counterclaims are not yet publicly available from the provided search results.

• Pre-trial Motions of Substance:

  • As of the current date, no public records or reports indicate the filing or resolution of any substantive pre-trial motions, such as motions to dismiss, motions to transfer venue, requests for a stay pending inter partes review (IPR), or motions for summary judgment in this particular case.

• Claim Construction (Markman) Outcomes:

  • The case has not progressed to the claim construction (Markman) stage, or at least no Markman hearing outcomes or orders have been publicly reported.

• Discovery Milestones with Strategic Significance:

  • There is no publicly available information detailing any significant discovery milestones in this litigation.

• Trial Events, Verdict, and Post-Trial Motions:

  • Given the relatively recent filing date and the absence of pre-trial motion outcomes, the case has not reached trial, nor have there been any verdicts or post-trial motions.

• Settlement, Dismissal, Judgment, or Appeal – Final Disposition or Present Posture:

  • The case is currently active and ongoing in the U.S. District Court for the Eastern District of Texas. No settlement, dismissal, judgment, or appeal has been reported.

• Parallel PTAB IPR/PGR Proceedings:

  • While Bishop Display Tech LLC has been involved in Inter Partes Review (IPR) proceedings for other patents in prior litigation (e.g., IPR2022-00508, which was terminated due to settlement), current public records do not indicate any parallel PTAB IPR or Post-Grant Review (PGR) proceedings specifically challenging U.S. Patent No. 8,093,830, the patent asserted in this case.

Based on available information from related patent infringement cases filed by Bishop Display Tech LLC in the Eastern District of Texas and general knowledge of patent litigation practice in the district, the following attorneys are likely representing the plaintiff, Bishop Display Tech LLC:

• Patrick Joseph Conroy

  • Role: Likely Lead Counsel
  • Firm: Nelson Bumgardner Conroy PC, with offices in Fort Worth and Dallas, TX.
  • Note: Regularly appears as counsel for Bishop Display Tech LLC in other patent infringement cases in the Eastern District of Texas, including recent filings in 2025 and 2026.

• Wesley Hill

  • Role: Local Counsel / Trial Counsel
  • Firm: Ward, Smith & Hill, PLLC, Longview, TX.
  • Note: An experienced trial lawyer in the Eastern District of Texas, with over a dozen patent trials as lead or co-lead counsel. He is also the former chairman of the Eastern District of Texas Local Rules Committee.

• Johnny Ward

  • Role: Local Counsel / Trial Counsel
  • Firm: Ward, Smith & Hill, PLLC, Longview, TX.
  • Note: A distinguished trial attorney frequently serving as local counsel in high-profile infringement litigation, known for securing multi-million dollar patent infringement verdicts.

• Sidney Calvin Capshaw

  • Role: Local Counsel
  • Firm: Capshaw Derieux, LLP, Longview, TX and Washington, DC.
  • Note: His practice includes commercial litigation and patent litigation, with experience in federal courts, including the Eastern District of Texas.

It's a common practice for plaintiffs in the Eastern District of Texas to engage local counsel, such as attorneys from Ward, Smith & Hill and Capshaw Derieux, alongside lead counsel for patent infringement cases. While direct PACER filings for case 2:24-cv-00085 were not explicitly found in the search results to confirm appearances, these attorneys are consistently associated with Bishop Display Tech LLC's patent litigation activities in the district.

I am unable to definitively identify the counsel of record representing the defendants (LG Display Co., Ltd., LG Electronics, Inc., and New Optics, Ltd.) in Bishop Display Tech LLC v. LG Display Co., Ltd. et al., Case No. 2:24-cv-00085 in the U.S. District Court for the Eastern District of Texas.

A direct search for the docket or counsel appearances in this specific case did not yield a list of attorneys. While web searches indicate that LG entities are frequently involved in patent litigation in the Eastern District of Texas and have been represented by firms such as O'Melveny & Myers LLP and Morgan, Lewis & Bockius LLP in other cases, this information is not specific to case 2:24-cv-00085. LG Display also has its own internal IP prosecution and litigation teams.

Without direct access to the docket sheet for this particular case, it is not possible to confirm which specific attorneys have entered an appearance for each defendant. If filings are sealed or counsel has not yet appeared on the public docket, such information would not be available through public web searches.