The patent is titled “Electronic Devices With Folding Displays Having Textured Flexible Areas.” The patent describes a foldable electronic device with a flexible display embedded in a foldable body and capable of bending along the folding axis. The surface of the screen is covered with a transparent glass cover. In order to allow the cover to bend when the device is folded, the patent proposes a process of etching elongated grooves on the glass cover to make the glass in this area thinner and thus Achieve bending. The grooves are filled with polymer material, which on the one hand smoothes the inner surface of the cover, and on the other hand the rough texture of the filler surface helps reduce light reflection.

The patent comes with multiple schematic diagrams, the first of which shows a foldable device that can be a mobile phone, a tablet, or a laptop. When users need to watch the content on the display, they can unfold it into a tablet form, and fold it for easy portability.

The patent also mentions that the polymer in the groove can be injected by liquid infusion and then cured by ultraviolet irradiation, heating or other curing processes. The polymer can be made of flexible materials such as silicone or acrylate. The rough texture on the surface of the cover not only helps to fix the polymer, but also allows light to gradually pass through the interface between the glass and the polymer, reducing light reflection.

Finally, the patent points out that the inner and outer surfaces of the cover can also be treated through a chemical strengthening process to form a reinforced layer that is more wear-resistant and scratch-resistant. For example, replacing sodium ions on the glass surface with potassium ions through an ion exchange process can introduce compressive stress to the glass surface, thereby improving its resistance to damage.

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The patent describes flexible screen technology that uses an array of pixels to form a display panel that bends along a hinge when the device is folded.

The display cover may be formed from a glass layer. Elongated grooves or other grooves parallel to, and overlapping with, the bending axis may be formed in the glass layer.

The grooves create flexible localized thinnings in the glass layer that allow the display cover layer to flex when the foldable device is opened and closed.

Apple places the polymer in the grooves and creates a rough texture on the inner surface of the thinned portion of the display cover, which wets the polymer in the grooves and helps reduce reflections.

Figure 1 of Apple’s patent shows device No. 10, which can be a mobile phone, tablet, laptop, etc.; Figure 2 is a perspective view of the electronic device, which is a portable electronic device with a foldable display. IT Home attaches pictures as follows:

Placing the device in a folded configuration in this way helps make the device more compact so it can be stored efficiently. When it is time to view the image on display #14, the device can be expanded around axis #28, placing the device in the expanded configuration of Figure 2.

The display can then be laid flat and the user can view a flat image on the display. The ability to fold the display onto itself gives the device the behavior of folding inwards. The display can be flexible enough to allow the device to fold outward and/or inward.

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Foldable displays, in the folded state, can utilize the upper half of the screen to display media content (e.g., mobile apps, videos, websites) and the lower half of the screen as input media (e.g., virtual keyboard or trackpad ), display LOGO, date and time information or other information.

If the upper and lower parts adopt a constant brightness, then different vertical luminous axes may appear in different areas, and the difference in brightness or color between the two folded areas (top and bottom) of the foldable display may produce image artifacts.

In some types of displays, the apparent brightness of the display will depend on the emission angle relative to the display normal direction (perpendicular to the display surface).

Apple has outlined a related system and method for controlling color and brightness compensation for the upper and lower parts.

For example, when the display is folded, the upper half of the display can display media content, while the lower half of the display can be used as a keyboard or other input media. In some cases, especially in low-light conditions, the screen viewing experience may be affected.

The screen can implement different special modes (for example, pre-adjusting or dynamically adjusting settings based on environmental conditions) for different folded areas of the display (for example, when the folded display is folded in half, each half of the folded display may have different settings) to help Simplify the viewing experience. Attached the patent sketch as follows:

For example, in low-light or nighttime scenes, the display may apply a color shift mode, which involves dimming the blue light in the upper half of the display.

The ability to track and/or determine eye position could enable foldable displays to dynamically adjust brightness and color output to provide users with an optimal viewing experience. In one example, the position of the eyes relative to the display may be determined by a camera, a proxy sensor, a facial recognition system (e.g., Apple Inc.’s Face ID®), the fold angle of the display, or any other eye tracking method.

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Foldable phones can provide a larger display area in a smaller form factor, and while Samsung is currently the leader in this field, Apple has been taking a wait-and-see attitude, not rushing to launch its own foldable phone, but waiting for the technology to mature and market demand to stabilize. Apple has used similar strategies in the past, such as in the field of smartwatches and tablet computers, are in other manufacturers first before launching their own improved version of the product, and subsequently achieved great success.

Back in 2021, analyst Ming-Chi Kuo predicted that Apple could launch its first foldable iPhone in 2023, but that would also depend on Apple’s ability to solve its technical challenges by then. Display analyst Ross Young also backed up that idea, saying that 2025 was a more likely date. For now, it looks like we’ll see a foldable iPhone sooner rather than later, although it could be very expensive. It’s widely believed that Apple will launch a foldable iPad first, possibly next year.

Counterpoint Research also sees 2025 as the year Apple will launch a foldable iPhone, and has produced a market forecast based on that prediction, showing that Apple will help ship 100 million foldable smartphones by 2027. (The color distinction is less obvious in the chart, but Apple is the larger darker gray area starting in 2025.)

Counterpoint says that on top of that projection, foldable phones will account for 21% of the high-end smartphone market (phones priced over $600) in 2025 and 39% by 2027. This means that the foldable phone market will reach $10 billion within two years of Apple’s entry into the market. The agency predicts that Samsung will remain the biggest player, probably because it has a number of foldable phone products, while Apple will also grow its market share rapidly.

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The abstract shows that the present disclosure relates to hinges for folding display devices. A foldable display device may have housing portions joined by a hinge. A hinge can have a series of interconnected links. The link may be formed by interdigitated fingers in a friction clutch. The fingers or other parts of the link may be provided with crescent shaped slots that receive the pins. During folding of the device, the pins can slide along the crescent-shaped slots, ensuring that adjacent connectors rotate relative to each other about an axis of rotation located outside the hinge and within the flexible display panel. The links may also be formed from link members having curved cooperating bearing surfaces that slide relative to each other as adjacent links are rotated relative to each other. The housing rotation synchronization mechanism may be formed using a set of gears extending between the first housing part and the second housing part.

The instructions show that the device could be a cellular phone, tablet computer, wrist watch device or other wearable device, television, stand-alone computer monitor or other monitor, etc.

Apple has previously obtained a number of patents for folding screen devices, including detecting that an iPhone/iPad equipped with a flexible screen is in a dropped state, and automatically folding the screen to minimize screen damage.

In addition, in the patent titled “Hinges for Folding Display Devices” (A variety of hinges designed for folding screen devices), a complex hinge consisting of 4 pairs of pinions and 6 static components is mentioned. design.

Samsung previously said it expects Apple to join the folding screen space in 2024, starting with laptops and tablets rather than smartphones.

The post Apple’s Foldable Display Hinge Patent Published appeared first on TechGoing.

The new patent is called “the use of drop detection to protect the screen of self-retracting display devices and technologies,” the patent description as follows.

Mobile devices with foldable and rollable displays can use sensors to detect vertical acceleration (for example, acceleration relative to the ground) to determine whether the device is in a falling state.

If the sensor detects that the mobile device has been dropped, the foldable device can be at least partially retracted to prevent the fragile display from hitting the ground.

When vertical acceleration exceeds a predetermined threshold, the release mechanism of the hinge connection between the first and second displays of the electronic device can be activated. And the scrolling device can automatically retract.

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Apple’s previous patents for foldable iPhones have typically featured a hinge design with 3-4 small gears rotating around a larger gear. But the patent, titled “Hinges for Folding Display Devices,” refers to a complex hinge design that includes four pairs of pinions and six static parts.

Compared to the previous large hinge structure, this hinge system consisting of multiple pinions is more complex and requires a higher level of craftsmanship, but this hinge can improve the experience of use.

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This information receives backing from a possible patent that seems to be in Apple’s name. Simply this patent shows off a display type that can heal itself hence concealing any dents that it might get while in use. Apple is envisioning something entirely different from what is common in the industry at this time.

Read also: iPhone 14 Pro and iPhone 14 Pro Max launched with Apple A16 bionic chip; specifications, price.

This self-healing nature of the display said to be in use on the coming Apple foldable device will help improve aesthetics. To a certain extent, this patent might be able to solve the ever-present dents and scratches common with most foldable devices. But dents and scratches are just a few of the issues foldable devices are battling at the moment.

The ever-present crease is a problem that Huawei seems to be close to eradicating. Samsung, the biggest player in the foldable industry, is working to fix the durability issue of foldable devices. With more companies taking a scoop of the foldable industry, it will certainly mature in the years ahead.

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