● Some smartphones move the functional area to the edge of the screen because of the wider screen ratio of the full screen.
●The world's leading smartphone brands have begun to apply for full screen hidden function patents, such as loudspeakers, sensors and camera lenses, etc., which can be hidden beneath the screen, some with holes, others not.
●Within a few years, there is a possibility that a smart phone can be listed without a Notch full screen.
The smartphone functional area is moved by a wider screen ratio
The traditional ratio of smart phone displays to 16:9 has been increasing since 2017, reaching a full screen 18:9 or 19.5:9. As a result, speakers, sensors and cameras are moving to other positions. Apple's iPhone X screen ratio is 19.5:9, with face ID recognition, front camera, sensors and speakers, placed in a special Notch area, but there is no touch ID recognition. Samsung's Galaxy S8 and Note 8 screen rate is 18.5:9, with a front camera, sensors and speakers, placed on the top side of the narrow side, but the fingerprint sensor is placed on the back of the smartphone. As shown in the following figure
Many users complain that the function of changing the location of the functional area with the full screen is not so comfortable. For example, the screen Notch incision covers a part of the display, unless the application adjusts the content of the screen to avoid the Notch incision area. If the fingerprint sensor is placed on the back of a smartphone, users need to pick up a smartphone to use the sensor. Many smart phone brands are trying to optimize the location of speakers, sensors and cameras for 18:9 or larger wide - to - high ratio screens.
Smart phone brands have begun to do patent layout for real full screen
As shown below, some of the mainstream smartphone brands have applied for patents on real full screen solutions. The main goal is to realize the concept that the functional area is hidden behind the screen, some with holes, and others not.
These patents include:
Apple : Display-based speaker structure for electronics devices : Apple has applied for a patent -- a loudspeaker based solution for electronic devices, which claims that the loudspeaker structure can be placed under flexible displays. The flexible display area can be used as a sound vibration film for the structure of the loudspeaker.
Apple: Electronic devices with display-integrated light sensors : Apple has applied for a patent, an electronic device equipped with a display integrated optical sensor, which claims that the display integrated optical sensor is inserted between the transparent cover layer and the display layer, such as the light-emitting layer composed of touch sensing layer or thin film transistor layer.
Apple : Fingerprint sensor in an electronic device : The Apple Corp has applied for a patent, a fingerprint sensor in electronic equipment, which claims that the fingerprint sensor is merged into the display stack of electronic devices with various structures.
Samsung : Electronic device including display and camera : Samsung patent application: electronic device comprises a display screen and a camera, which claimed that "at least in part by the first bonding layer is formed in the opening, extending a set of guide wire around the opening set in order to optical does not block the opening, setting up a photographic image sensor device can make it through at least a portion of the opening.
Samsung :Electronic apparatus having a hole area with screen and control method therefore : Samsung patent - screen with holes in the electronic device and control method thereof, which claimed that "with an empty area of electronic equipment, the hole region can be analyzed by amplifying the image or the application screen, and a method for controlling the electronic device hole area."
No matter when these patents can be published for product features, it is important that smart phone brands start to shift a lot of functionality to the screen. Soon, this trend will start to affect the panel industry and mobile phone design.
Some panel makers are developing a Notch - free full screen display
As IHS Markit describes in AMOLED & flexible display information service, AMOLED panel manufacturers try to introduce fingerprint recognition into their products, and some of them are ready. A AMOLED display with fingerprint identification can be launched in 2018.
SamSung monitor has just completed the development of the under screen fingerprint solution (optical single point recognition) under rigid AMOLED, and will be shipped in the first quarter of 2018. It is expected that many panel manufacturers will try to integrate an additional layer on the display body to get simpler structure, better performance and multi-point recognition capability. The following example is one of the examples.
Fingerprint sensing is the first attempt by panel manufacturers to combine sensors. The next step will soon come as smart phone brands are trying to provide a more comfortable display experience for customers.