Alpha Touch Group LLC v. Lenovo Group Ltd

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Alpha Touch Group LLC (Texas)
  • Defendant: Lenovo Group Limited, et al. (China)
  • Plaintiff's Counsel: Fabricant, Rubino & Lambrianakos LLP
• Case Identification: 2:25-cv-01081, E.D. Tex., 05/18/2026
• Venue Allegations: Venue is alleged to be proper as Defendants are not U.S. residents and may be sued in any judicial district. The complaint further alleges that Defendants conduct substantial business and direct infringing products into the district through sales, distribution channels, and authorized service providers.
• Core Dispute: Plaintiff alleges that Defendant's smartphones, tablets, and computers featuring flexible displays and/or on-cell capacitive touch panels infringe four patents related to the construction and manufacturing of electronic display and touch-sensing technology.
• Technical Context: The technology at issue concerns methods for manufacturing thinner, more durable, and better-performing touch screens, including those for foldable devices, a key area of innovation and competition in the consumer electronics market.
• Key Procedural History: The complaint is an amended version of an original complaint filed on October 28, 2025. Plaintiff asserts that personal jurisdiction over Defendant Lenovo Group Ltd. has been previously established in the district and upheld by the Federal Circuit. The complaint also alleges that a key supplier to Lenovo cited the families of two of the patents-in-suit in its own patent application, which may be used to support allegations of knowledge.

Case Timeline

Date	Event
2007-12-24	Priority Date for '857 Patent and '542 Patent
2008-02-18	Priority Date for '675 Patent
2013-07-09	'542 Patent Issue Date
2014-10-15	Supplier (Nippon Electric Glass) PCT Application Filing
2016-07-19	'857 Patent Issue Date
2017-03-28	'675 Patent Issue Date
2020-XX-XX	Launch of first accused products (e.g., Motorola Edge (2020))
2021-01-11	Priority Date for '794 Patent
2022-11-08	'794 Patent Issue Date
2025-10-28	Original Complaint Filing Date
2026-05-18	Amended Complaint Filing Date

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 11,493,794 - "Electronic Device and Method of Manufacturing the Same," issued November 8, 2022

The Invention Explained

• Problem Addressed: The patent addresses the shortcomings of early foldable screens, which used plastic films that developed creases after repeated folding, affecting both durability and optical quality. It also notes that using optical clear adhesives (OCA) to stack layers increases thickness and can lead to cracks '794 Patent, col. 1:25-41
• The Patented Solution: The invention proposes a composite cover plate for electronic devices that combines an ultra-thin glass layer with at least one transparent polymer covering layer (e.g., polyimide) '794 Patent, abstract A key aspect of the described manufacturing method is laminating these layers without traditional adhesives, for example, by directly coating and drying a liquid polymer onto the glass '794 Patent, col. 5:21-29 '794 Patent, Fig. 2 This creates a structure intended to be both durable and flexible, while simplifying the manufacturing process.
• Technical Importance: This technology represents an approach to solving the critical durability-flexibility tradeoff in foldable displays by creating an adhesive-free, composite glass-polymer structure '794 Patent, col. 1:15-24

Key Claims at a Glance

• The complaint asserts infringement of at least Claim 1 Compl. ¶41 and reserves the right to assert other claims Compl. ¶40
• Independent Claim 1 requires:
  • An electronic device with a cover plate, a touch sensing layer, and a display module.
  • The cover plate comprising a glass layer and at least one transparent covering layer "laminated with the glass layer."
  • The at least one transparent covering layer comprising a first and a second transparent covering layer.
  • The glass layer being "laminated between the first transparent covering layer and the second transparent covering layer."
  • The touch sensing layer disposed under the cover plate and the display module disposed under the touch sensing layer.

U.S. Patent No. 9,606,675 - "Capacitive Touch Panel," issued March 28, 2017

The Invention Explained

• Problem Addressed: The patent describes the prior art method of creating touch panels by laminating a separate touch sensor substrate and a lens substrate as being complex, costly, and resulting in thicker devices '9,606,675 Patent, col. 1:28-40
• The Patented Solution: The patent discloses an "integrally-formed" touch panel where the sensing circuit is formed directly on the bottom surface of a "singular lens substrate" '9,606,675 Patent, abstract '9,606,675 Patent, col. 3:45-50 This eliminates the need for a separate substrate for the touch sensor and the associated lamination step. The structure can include a peripheral mask layer to conceal circuitry '9,606,675 Patent, Fig. 2
• Technical Importance: This "sensor-on-lens" or "on-cell" manufacturing approach was a significant step toward producing thinner, lighter, and more cost-effective touch-screen devices by reducing component count and simplifying assembly '9,606,675 Patent, col. 5:1-5

Key Claims at a Glance

• The complaint asserts infringement of at least Claim 1 Compl. ¶56 and reserves the right to assert other claims Compl. ¶55
• Independent Claim 1 requires:
  • A capacitive touch panel with a substrate (glass or plastic), a sensing circuit, and a "physical tactile inputting integration."
  • The integration has a peripheral masking area, a first surface for receiving touch input, and a second surface for forming the sensing circuit.
  • A negative limitation: "wherein there is no other substrate made of glass or plastic material laminated or bonded on the first surface of the substrate."

U.S. Patent No. 9,395,857 - "Capacitive Touch Panel," issued July 19, 2016

• Technology Synopsis: The '857 Patent describes a capacitive touch panel architecture where an electrode layer for touch sensing is disposed on a color filter substrate, which is part of the display module itself '9,395,857 Patent, claim 1 A cover lens is then bound to this color filter substrate with an adhesive layer. This "on-cell" design integrates the touch-sensing function directly into the display stack, aiming to reduce device thickness and simplify manufacturing compared to older designs that used a completely separate touch panel assembly.
• Asserted Claims: At least Claim 15 is asserted Compl. ¶72
• Accused Features: The complaint accuses Lenovo products with on-cell or out-cell AMOLED touch displays, naming the Motorola Edge (2024) as exemplary Compl. ¶72 The accused features are the device's layered display structure, including its cover lens, decoration layer, color filter substrate, electrode layer, and adhesive layer Compl. ¶¶73-77

U.S. Patent No. 8,482,542 - "Capacitive Touch Panel," issued July 9, 2013

• Technology Synopsis: The '542 Patent discloses a capacitive touch panel where two electrode layers, separated by a non-gaseous insulating layer, are formed directly on the cover lens itself '8,482,542 Patent, claim 1 This "sensor-on-lens" architecture integrates the touch sensor components directly onto the protective cover glass. The design is intended to eliminate the need for a separate substrate for the touch sensor, thereby simplifying the manufacturing process and enabling thinner device profiles '8,482,542 Patent, col. 7:11-20
• Asserted Claims: At least Claim 1 is asserted Compl. ¶90
• Accused Features: The complaint targets Lenovo products with on-cell or out-cell capacitive touch displays, using the Motorola Edge (2024) as an example Compl. ¶90 The infringement allegations focus on the integrated touch panel structure, including the cover lens, electrode layers, anti-reflection coating, and insulating layer Compl. ¶¶91-95

III. The Accused Instrumentality

Product Identification

• The complaint identifies two primary categories of accused products:
  1. Lenovo devices with flexible/foldable displays, with the Motorola Razr+ Ultra (2025) being the exemplary product for the '794 Patent Compl. ¶¶35, 41
  2. Lenovo devices with on-cell or out-cell OLED, pOLED, or AMOLED capacitive touch displays, with the Motorola Edge (2024) being the exemplary product for the '675, '857, and '542 Patents Compl. ¶¶36, 56, 72, 90

Functionality and Market Context

• The Motorola Razr+ Ultra is a foldable smartphone that allegedly uses Dinorex Ultra-Thin Glass (UTG) for its main pOLED display to achieve flexibility Compl. ¶42 Compl. p. 23, Fig. 37 The complaint uses a press release to show Dinorex UTG has been adopted for the display cover glass of the Motorola Razr series Compl. p. 23, Fig. 37
• The Motorola Edge (2024) is a conventional smartphone featuring a 6.6-inch pOLED "Endless Edge Display" with curved sides Compl. p. 39 Compl. p. 40, Fig. 59 The complaint highlights its use of an "On-cell projection capacitive touch panel," which is central to the infringement theories for the patents on touch panel construction Compl. p. 42, Fig. 64
• The complaint positions these products as significant offerings from Lenovo, which it describes as one of the world's leading manufacturers of computers and mobile devices Compl. ¶11

IV. Analysis of Infringement Allegations

'794 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
a cover plate comprising: a glass layer ... and at least one transparent covering layer ... wherein ... the glass layer is laminated between the first transparent covering layer and the second transparent covering layer	The Motorola Razr+ Ultra's cover plate allegedly comprises an Ultra-Thin Glass (UTG) layer laminated between a first protective polymer film and a second layer, such as a polarizing film.	¶42	col. 5:11-20
a touch sensing layer disposed under the cover plate	The device's pOLED display assembly includes a touch sensing layer located beneath the UTG cover plate.	¶43	col. 4:11-13
a display module disposed under the touch sensing layer	The device's pOLED display module is located beneath the touch sensing layer.	¶44	col. 4:20-22

• Identified Points of Contention:
  • Scope Questions: A primary dispute may arise over the term "laminated with", particularly as the patent specification criticizes the use of adhesives and describes an adhesive-free coating process '794 Patent, col. 5:21-29 The infringement analysis will question whether the bonding method used in the accused UTG stack, which may involve adhesives, falls within the scope of being "laminated with" as construed from the patent.
  • Technical Questions: The complaint's evidence for the multi-layer structure of the cover plate relies on third-party sources like press releases and teardown videos Compl. p. 23, Fig. 37 Compl. p. 26, Fig. 41 A technical question for the court will be whether this evidence is sufficient to prove that the accused product's UTG assembly is in fact a glass layer physically sandwiched "between" two distinct "transparent covering layers" as required by the claim.

'675 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
a substrate made of glass or plastic material having a first surface and a second surface	The Motorola Edge (2024) display includes a substrate, such as the Corning Gorilla Glass cover lens or the underlying pOLED substrate.	¶57	col. 3:57-61
a physical tactile inputting integration having a peripheral masking area ... and having the first surface for receiving the physical tactile input and the second surface for forming said sensing circuit	The device's pOLED touch panel is an integrated unit with a black mask on its edges. Its outer surface receives touch input, while its internal structure forms the sensing circuit. A diagram illustrates this flexible on-cell OLED structure Compl. p. 44, Fig. 66	¶59; Compl. ¶60	col. 5:50-65
wherein there is no other substrate made of glass or plastic material laminated or bonded on the first surface of the substrate	The complaint alleges the touch sensor is deposited on the substrate (e.g., the cover glass) in an "on-cell" configuration, without a separate, additional substrate laminated on top of it.	¶60	col. 6:1-5

• Identified Points of Contention:
  • Scope Questions: The interpretation of the negative limitation "no other substrate...laminated or bonded on the first surface" will be critical. The case may turn on the legal distinction between a "substrate" and other components like films or coatings. A defendant may argue that various layers in the complex display stack (e.g., a polarizer) constitute an "other substrate," thereby avoiding this limitation.
  • Technical Questions: What evidence does the complaint provide to definitively establish the absence of an "other substrate"? The analysis relies on teardown photos and general technical diagrams Compl. p. 41, Fig. 61 Compl. p. 42, Fig. 64 The factual question will be whether a detailed analysis of the accused product's actual layered structure reveals any component that could be characterized as an "other substrate," creating a mismatch with the claim language.

V. Key Claim Terms for Construction

For the '794 Patent:

• The Term: "laminated with the glass layer"
• Context and Importance: This term is central to defining the invention's structure. The patent distinguishes itself from prior art by avoiding adhesives '794 Patent, col. 1:36-41 Practitioners may focus on this term because its construction will determine whether the accused products, which may use various bonding agents in their complex foldable displays, meet this limitation.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The plain language of claim 1 recites that the glass layer is "laminated with" the covering layer, without expressly excluding adhesives in the claim itself.
  • Evidence for a Narrower Interpretation: The specification repeatedly emphasizes an adhesive-free construction, stating "the transparent covering layer and the glass layer are not adhered to each other with adhesive (e.g., OCA)" and that this "lack of the use of adhesive can simplify the manufacturing process" '794 Patent, col. 5:21-29 This language may support a narrower construction limited to direct, non-adhesive bonding, such as the described method of coating and drying a polymer onto the glass '794 Patent, col. 6:20-27

For the '675 Patent:

• The Term: "no other substrate made of glass or plastic material"
• Context and Importance: This negative limitation is the dispositive element of the asserted infringement theory for Claim 1. The dispute will hinge on what qualifies as a "substrate." Practitioners may focus on this term because the complexity of modern display stacks, which contain numerous films and layers, provides fertile ground for arguing whether any of those components constitute an "other substrate."
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation (favors Plaintiff): The patent's background contrasts the invention with prior art using a separate "touch panel 6" on its own "glass substrate 61" laminated to a "lens 5" '9,606,675 Patent, col. 1:28-40 '9,606,675 Patent, Fig. 6 This suggests "substrate" refers to a distinct, structurally independent component used as a base for the touch sensor, not merely any thin film within the display assembly.
  • Evidence for a Narrower Interpretation (favors Defendant): The patent does not explicitly define "substrate." A defendant could argue that any distinct layer of "plastic material" (e.g., a polarizer, an anti-glare film) that is "laminated or bonded" onto the primary glass could be considered an "other substrate" in its plain and ordinary meaning, thus taking the product outside the claim scope.

VI. Other Allegations

• Indirect Infringement: For all four patents, the complaint alleges induced infringement, stating that Defendants provide user guides and instructions that encourage customers to use the accused products in an infringing manner (e.g., by operating the touch display) Compl. ¶¶47, 63, 81, 99 It also alleges contributory infringement, arguing that the accused display components are material parts of the inventions, are not staple articles of commerce, and are known to be especially made for use in an infringing way Compl. ¶¶50, 66, 84, 102
• Willful Infringement: Willfulness is alleged for all patents based on two theories: (1) Defendants had knowledge of the patents at least as of the filing of the original complaint on October 28, 2025, and (2) Defendants maintained a policy of not reviewing patents of others, constituting willful blindness since the patents issued Compl. ¶¶46, 62, 80, 98 For the '857 and '542 Patents, the complaint adds that a known supplier, Nippon Electric Glass Co., Ltd., cited the patent family in a 2014 patent application, suggesting earlier knowledge in the supply chain Compl. ¶78 Compl. ¶96

VII. Analyst's Conclusion: Key Questions for the Case

• A core issue will be one of definitional scope: can the term "laminated with", as used in the '794 Patent that criticizes adhesives, be construed to cover the potentially adhesive-bonded layers of the accused foldable display, or is it limited to the patent's described adhesive-free coating method?
• A key question of fact and claim construction for the '675 Patent will be whether any of the many thin films within the accused product's display stack constitutes an "other substrate". The case will require a detailed technical examination of the product's construction and a legal ruling on the line between a mere "layer" and a "substrate" in the context of the patent's claims.
• A central evidentiary challenge will be the sufficiency of the Plaintiff's proofs of infringement. With allegations relying heavily on third-party teardowns, supplier marketing, and general technical articles, the court will have to determine if this publicly available information is precise and reliable enough to establish that the accused products meet the specific technical limitations of each asserted claim.