Invalidity dossier

US 8267537

Added 5/13/2026, 6:00:36 AM

⚖️ 1 PTAB proceeding on file for this patent

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Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

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Summary of U.S. Patent 8,267,537

A concise summary of U.S. Patent 8,267,537 is provided below, based on a review of the patent documentation and other publicly available information as of April 26, 2026.

Title: Backlight unit and display device having the same

Assignee: The current assignee of record is Light Guide Innovations LLC. The patent was originally assigned to LG Innotek Co., Ltd.

Inventors: Jun Seok Park

Filing Date: December 21, 2007

Issue Date: September 18, 2012

Abstract: The patent discloses a backlight unit and a display device incorporating it. The backlight unit comprises a light-emitting diode (LED) module, a case that supports the LED module and includes a "bending part" to guide and fix one end of the module, and a separate "fixing part" to secure the rest of the module to the case. This design is intended to simplify the replacement of defective LED modules.


Plain-Language Overview of Independent Claims

U.S. Patent 8,267,537 has two independent claims: claim 1 and claim 13. A plain-language explanation of each is provided below.

Independent Claim 1: This claim describes a backlight unit for a display. The unit includes:

  • An LED module that produces light.
  • A supporting case or frame for this module. A key feature of this case is an integrated or attached "bending part." This part is designed to hold one end of the LED module in place, acting as a guide and a fixture.
  • A separate "fixing part," such as a screw or a clip, that secures another part of the LED module to the case.

The core idea is that by using a built-in bending part to hold one end, fewer separate fixing parts are needed, making it easier and quicker to install or replace the LED module.

Independent Claim 13: This claim describes a complete display device that uses the backlight unit from Claim 1. The device consists of:

  • The backlight unit as described above, with its LED module, a case featuring a "bending part," and a separate "fixing part."
  • A display part, such as an LCD panel, which uses the light from the backlight unit to show an image.

Essentially, this claim extends the invention from just the backlight component to a full display product, like a television or monitor, that incorporates this specific backlight design.

There is no record of any appeals or decisions related to US Patent 8267537 in the CAFC dockets for 2026 as of the date of this analysis. However, the patent is subject to litigation in district courts, including a case filed by Light Guide Innovations LLC against Samsung Electronics Co., Ltd. in the Eastern District of Texas (2:25-cv-01093).

Generated 5/13/2026, 6:49:40 AM