Description:FIELD OF THE INVENTION
The present invention relates to the field of smartphone display technologies, more particularly to self-healing screens. Specifically, the invention concerns a light-activated polymer coating or layer applied on smartphone screens that enables automatic repair of scratches, cracks, or surface damages when exposed to a particular light source, thereby enhancing the durability, lifespan, and user experience of smartphones.
BACKGROUND OF THE INVENTION
References which are cited in the present disclosure are not necessarily prior art and therefore their citation does not constitute an admission that such references are prior art in any jurisdiction. All publications, patents and patent applications herein are incorporated by reference to the same extent as if each individual or patent application was specifically and individually indicated to be incorporated by reference.
Smartphone screens are highly susceptible to scratches, cracks, and other forms of surface damage due to daily usage, accidental drops, or abrasive contact. Such damage not only deteriorates the aesthetic appearance of the device but also affects its functionality and user experience. Presently, the most common solutions include the use of tempered glass protectors, protective cases, or costly screen replacements. However, these approaches are either temporary, inconvenient, or economically burdensome for users.
Various research efforts have been directed towards the development of durable screen materials and protective coatings. While certain self-healing polymers have been proposed, they generally require long healing times, elevated temperatures, or specific chemical treatments, which limit their practical application in consumer devices like smartphones.
Accordingly, there exists a need for an innovative solution that enables rapid, cost-effective, and user-friendly self-repair of smartphone screens without compromising display clarity or touch sensitivity. The present invention addresses this need by utilizing a light-activated polymer that facilitates efficient self-healing of surface damages when exposed to a suitable light source.
This invention presents a new smartphone screen design that automatically incorporates a mildly active self -healing polymer layer to repair scratches and minor surface damage. The screen is designed with a multi -level structure that includes a protective exterior coating, a transparent self -healing polymer layer, a capacitive touch -sensitive layer and a screen panel such as OLED, LCD or Micro LED. The self-healing layer consists of polymers with dynamic covalent bindings such as dysalfide coupling or rings age-legged that responds to specific wavelengths of light by improving their molecular structure. Suitable polymer materials include polyur teeth networks, azobenzen -modified polymers and virgin -based reversible photo imimarization systems with light -sensitive groups. The healing can be initiated either passively through the use of ambient light or actively made through microllated light sources that emit controlled wavelength to accelerate repair. When surface damage is detected through built -in sensors or user inputs, the unit activates the light source, trigging the chain dynamics and binding regeneration in the polymer, and gradually restores the screen. Further functions include the detection of automatic damage, user notifications during the treatment and the ability to undergo multiple treatment cycles without loss of performance. This self -healing screen technique provides better durability, stability and convenience by reducing the requirement for repair or screen replacement in smartphones.
The treatment mechanism can be triggered in two ways. In passive activation, treatment is gradually under natural sunlight or indoor light. In active activation, the smartphone uses built-in light sources such as micro-led as below or around the screen, which emits specific wavelength to start rapid treatment. When a scratch or crack is detected - either through a built -in sensor or user input - activates the unit the light source in the affected area. This light risk stimulates mobility in the polymer chain, allowing the broken bonds to recreate and restore the surface. The treatment process can take minutes to several hours depending on the severity of the injury.
To increase functionality, the invention also includes additional properties. Microsensator detects physiology and automatically triggers the healing process. A user interface alert system informs the user when the healing progress or completes. In addition, the polymer layer is capable of several treatment cycles without a significant decline in performance, making the screen more durable, durable and user -friendly than the traditional smartphone screen.
Several patents issued for smartphone screen self – healing but none of these are related to the present invention. Patent US10854848B1 relates to an information handling system includes an organic light emitting diode layer, an optically clear adhesive layer, and a flexible glass substrate. A surface film includes a self-healing polymer layer, the self-healing polymer layer including a self-healing polymer.
Another patent US10241377B1 disclosed for self-healing flexible electrophoretic displays and related devices. In one embodiment, an example flexible electrophoretic display may include a flexible plastic thin film transistor (TFT) backplane having a first width, an electrophoretic layer coupled to the flexible plastic TFT backplane, an electrode layer coupled to the electrophoretic layer, an integrated circuit disposed on the flexible plastic TFT backplane, and a protective sheet having a second width that is greater than or equal to the first width.
Another patent US11899165B2 relate to a display panel and a method of manufacturing the same. A high-reliability display panel with a reduced bezel area or substantially no bezel area and a method of manufacturing the same.
Another patent US11444268B2 discloses an electronic device may have a hinge that allows the device to be flexed about a bend axis. A display may span the bend axis. To facilitate bending about the bend axis without damage, the display may include a display cover layer with a flexible portion. The flexible portion of the display cover layer may be interposed between first and second rigid portions of the display cover layer. The display cover layer may also include a layer with self-healing properties. The layer of self-healing material may be formed across the entire display cover layer or may be formed only in the flexible region of the display cover layer. The display cover layer may include a layer of elastomer in the flexible region of the display cover layer for increased flexibility. Self-healing may be initiated or expedited by externally applied heat, light, electric current, or other type of external stimulus.
Another patent US10508204B2 relates to Photo-protected microcapsules containing a photopolymer composition are dispersed in an epoxy coating to form an autonomic self-healing material. The capsule shell wall is formulated to protect the photopolymer composition from electromagnetic radiation exposure prior to rupture of the capsule shell, so that the photopolymer composition (e.g., a UV curable epoxy resin) remains active until triggered by damage to the capsule shell. Carbon black pigment is a suitable UV protector for the capsules. Upon sufficient damage to a region of the coating, the capsules will rupture and the photopolymer composition will fill and cure in and/or around the damaged region in the presence of electromagnetic radiation, achieving autonomic healing of the damaged coating.
OBJECTS OF THE INVENTION
Main object of the present invention is to smartphone details of invention for better understanding screen self – healing using light activated polymer.
Another object of the present invention is to provide a smartphone screen with self-healing properties using a light-activated polymer.
Another object of the present invention is to develop a screen technology that can autonomously repair scratches, cracks, or surface abrasions when exposed to a specific light source.
Another object of the present invention is to provide a cost-effective and user-friendly alternative to conventional screen protectors and replacements.
Another object of the present invention is to ensure that the self-healing polymer layer does not compromise display transparency, brightness, or touch sensitivity.
SUMMARY OF THE INVENTION
This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention.
This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.
To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings.
The present invention discloses a smartphone screen system with self-healing capability utilizing a light-activated polymer layer integrated within the display structure. The screen comprises a protective outer coating, a transparent self-healing polymer layer, a capacitive touch-sensitive layer, and a display panel such as OLED, LCD, or micro-LED. The self-healing layer is formed of polymers with dynamic covalent bonds (including disulfide linkages, Diels–Alder coupling, or photo-dimerization systems) that undergo reversible bonding when exposed to specific wavelengths of light, thereby repairing scratches and minor cracks without affecting optical clarity or touch performance. The healing mechanism may be triggered either passively by ambient light or actively through integrated micro-LED light sources positioned within the device. When surface damage is detected by built-in microsensors or user input, the system activates the light source, initiating molecular reformation and restoring the screen surface. The invention further incorporates features such as automatic damage detection, user notification during repair, and the ability to sustain multiple healing cycles without performance degradation. This technology provides an intelligent, durable, and eco-friendly solution that enhances smartphone longevity, reduces repair costs, and minimizes electronic waste.
Herein enclosed a method for self-healing a smartphone screen comprising the steps of:
Providing a smartphone display having a protective outer layer, a transparent self-healing polymer layer, a capacitive touch-sensitive layer, and a display panel selected from OLED, LCD, or micro-LED;
Detecting surface damage on the screen through built-in sensors or user input;
Activating a light source selected from ambient light or integrated micro-LEDs to emit a controlled wavelength;
Stimulating dynamic covalent bonds within the self-healing polymer layer to undergo reversible molecular reformation; and
Restoring scratches or micro-cracks on the screen surface while maintaining optical clarity and touch sensitivity.
The self-healing polymer comprises materials selected from polyurethanes, azobenzene-modified polymers, or reversible photo-responsive systems containing light-sensitive groups.
The dynamic covalent bonds are selected from disulfide linkages, Diels–Alder coupling, or photo-dimerization systems.
The healing process is triggered passively by ambient light exposure or actively by micro-LEDs integrated within or around the screen.
The smartphone further comprises an alert system configured to notify a user of the progress and completion of the healing cycle.
BRIEF DESCRIPTION OF THE DRAWINGS
The illustrated embodiments of the subject matter will be understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
Fig. 1 Cross-Sectional View of Smartphone Display with Self-Healing Functionality
DETAILED DESCRIPTION OF THE INVENTION
The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided herein is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a",” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.
It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
In addition, the descriptions of "first", "second", “third”, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In some embodiments of the present invention, the present invention relates to a smartphone screen design incorporating a multi-level structure that autonomously repairs surface damage using a light-activated polymer layer.
In some embodiments of the present invention, the screen comprises a protective exterior coating, a transparent self-healing polymer layer, a capacitive touch-sensitive layer, and a display panel such as OLED, LCD, or micro-light-emitting diodes.
In some embodiments of the present invention, the self-healing layer contains polymers with dynamic covalent bonds, including disulfide coupling, Diels–Alder reactions, or coumarin-based systems, which respond to specific wavelengths of light by reorganizing their molecular structure to restore scratches or micro-cracks without compromising clarity or touch sensitivity.
In some embodiments of the present invention, suitable polymeric materials include polyurethanes, azobenzene-modified polymers, and reversible photo-responsive systems.
In some embodiments of the present invention, the healing process is activated either passively through ambient sunlight or indoor light, or actively through integrated micro-LED light sources embedded within or around the screen that emit controlled wavelengths to accelerate repair.
In some embodiments of the present invention, upon detection of damage by microsensors or through user input, the system activates the light source to stimulate polymer chain mobility and reformation, gradually restoring the screen surface within minutes to hours depending on severity.
In some embodiments of the present invention, the invention further integrates automatic damage detection, user notification during treatment, and repeatable repair cycles without loss of performance, thereby providing a durable, intelligent, and user-friendly smartphone screen with extended functional life and reduced need for replacements.
Herein enclosed a method for self-healing a smartphone screen comprising the steps of:
Providing a smartphone display having a protective outer layer, a transparent self-healing polymer layer, a capacitive touch-sensitive layer, and a display panel selected from OLED, LCD, or micro-LED;
Detecting surface damage on the screen through built-in sensors or user input;
Activating a light source selected from ambient light or integrated micro-LEDs to emit a controlled wavelength;
Stimulating dynamic covalent bonds within the self-healing polymer layer to undergo reversible molecular reformation; and
Restoring scratches or micro-cracks on the screen surface while maintaining optical clarity and touch sensitivity.
The self-healing polymer comprises materials selected from polyurethanes, azobenzene-modified polymers, or reversible photo-responsive systems containing light-sensitive groups.
The dynamic covalent bonds are selected from disulfide linkages, Diels–Alder coupling, or photo-dimerization systems.
The healing process is triggered passively by ambient light exposure or actively by micro-LEDs integrated within or around the screen.
The smartphone further comprises an alert system configured to notify a user of the progress and completion of the healing cycle.
EXAMPLE 1
BEST METHOD
A) Integrated light source
Whether the screen is located in or around (eg micro-led), this component emits a controlled wavelength of light, usually necessary to activate UV or visible light, self-healing polymer layer. This can be activated passively (ambient light) or actively (unit controlled LED).
B) Protective outer layer
This is the first contact surface of the smartphone screen, made of transparent and scratch -resistant materials such as gorilla class or hard plastic. It forms the underlying layers from the first mechanical damage so that light transfer can reach the self -healing layer.
C) Self -healing layer
This is the most important innovation in the system. This includes a transparent polymer matrix with built-in dynamic covalent bindings-as photodimal devices such as dysalfide bonds, dials-age coupling or commerine. When exposed to specific light wavy length exposure, these bindings enable scratches or repair of weak cracks without affecting correction, clarity or touch functionality. The material allows several treatment cycles without falls.
D) Touch sensing layer
This layer has capacitive sensors responsible for detecting finger movements and gestures. This ensures responsible touch interactions, and the above self -healing action does not disturb the accuracy.
E) Perform team
It is the bottom layer, which is responsible for producing the image using OLED, LCD or micro-led technology. It should maintain high visual clarity and glow, and the upper layers are designed to preserve this visibility after injury and treatment.
This integrated layer stack provides a durable, smart, and user-friendly smartphone display that automatically heals surface-level damage, increasing device lifespan, reducing repair costs, and minimizing environmental waste.

ADVANTAGES OF THE INVENTION:
The proposed patent provides several important benefits that increase both the durability and the user experience on the smartphone screen. One of the primary benefits has the ability to automatically repair minor surface damage such as scratches and small cracks using a mild active self -healing polymer. This eliminates the requirement for manual intervention or expensive screen replacement. The invention supports double -producing the healing use of a surrounding microled light sources through ambient lighting and active activation -active activation, flexible and timely repair options under activation -different circumstances. The use of dynamic covalent bonds, such as dysalfide coupling or rings, enables frequent treatment cycles without decline, significantly increases the functional life of the screen. In addition, integrated microsensors can detect physical damage and start the autonomy of the treatment process, making the system very responsible and intelligent. A user alert interface informs users during the treatment cycle and improves openness and trust. This innovation not only maintains the visual clarity and touch responsibility on the screen, but also supports stability by reducing the environmental impact of electronic waste and screen replacement. Overall, the patent introduces a smart, confidence solution that ensures a long -lasting, aesthetically protected and environmentally friendly smartphone screen.
, Claims:1. A method for self-healing a smartphone screen comprising the steps of:
a) providing a smartphone display having a protective outer layer, a transparent self-healing polymer layer, a capacitive touch-sensitive layer, and a display panel selected from OLED, LCD, or micro-LED;
b) detecting surface damage on the screen through built-in sensors or user input;
c) activating a light source selected from ambient light or integrated micro-LEDs to emit a controlled wavelength;
d) stimulating dynamic covalent bonds within the self-healing polymer layer to undergo reversible molecular reformation; and
e) restoring scratches or micro-cracks on the screen surface while maintaining optical clarity and touch sensitivity.
2. The method as claimed in claim 1, wherein the self-healing polymer comprises materials selected from polyurethanes, azobenzene-modified polymers, or reversible photo-responsive systems containing light-sensitive groups.
3. The method as claimed in claim 1, wherein the dynamic covalent bonds are selected from disulfide linkages, Diels–Alder coupling, or photo-dimerization systems.
4. The method as claimed in claim 1, wherein the healing process is triggered passively by ambient light exposure or actively by micro-LEDs integrated within or around the screen.
5. The method as claimed in claim 1, wherein the smartphone further comprises an alert system configured to notify a user of the progress and completion of the healing cycle.