标签： 苏州桑拿夜生活

After the folding screen design has become the mainstream, how to deal with the crease has become a difficult problem for mobile phone manufacturers. Early folding models, due to technical immaturity, can see a very obvious crease after opening the inner screen, and can also feel the depression in the middle of the screen when touching it. This imperfection also makes consumers who are willing to adopt early adopters leave an imperfect impression on the folding screen mobile phone.

The newly launched vivo X Fold slogan "Open the era of folding screen 2.0" in the preheating stage, and it has indeed made great progress compared with the previous folding screen products in terms of images, screens, charging and systems. So what efforts has vivo X Fold made on the crease issue that users are most concerned about? Let’s take a look at it together.

Before discussing how to eliminate creases, we need to understand how creases are produced. In the process of opening and closing the folding screen, the crease will be formed. On the one hand, due to the lack of supporting structure in the center after the screen is unfolded, it cannot offset the concave inertia in the bending state; On the other hand, it is due to the upward force on the screen caused by the position of door panels connected to the screen on both sides of the hinge when the screen is unfolded. The combined action of the two factors makes an M-shaped crease appear in the center of the folding screen.

Here we can take a piece of paper as a simple analogy. If you fold it in half directly, a deep crease will naturally appear in the middle of the paper. However, if you only pinch the two ends of the paper, a curve similar to the shape of a water drop will be formed in the middle of the paper, and a larger bending radius will not cause obvious creases in the middle of the paper. Because of the lack of transition, the U-shaped hinge mainly used in early folding screen mobile phones often leaves a deep crease on the screen.

The left side is water-drop shaped and the right side is U-shaped.

Of course, the causes of creases are far more than that. Because the screen opening and closing requires complex mechanical structure, its movement will also affect the flatness of the screen. When many folding screen mobile phones are unfolded, there is often an uneven downward depression in the middle of the inner screen. This is mainly due to two reasons. On the one hand, there is no supporting structure in the center of the screen after it is unfolded, which leads to its inability to offset the concave inertia in the bending state; On the other hand, it is due to the upward force on the screen caused by the position of door panels connected to the screen on both sides of the hinge when the screen is unfolded. The combined action of the two factors makes an M-shaped crease appear in the center of the folding screen.

Understand how the crease is generated, and then let’s take a look at how the crease solution of vivo X Fold is done. As can be seen from the above, hinge design is the key to solve the crease problem. Vivo X Fold adopts aerospace-grade floating wing hinge, which is optimized for the three major causes of crease. The first is the hinge structure, which is different from the U-shaped hinge. The hinge of vivo X Fold adopts a drop-shaped design, and the larger bending radius reduces the bending pressure of the screen, and the crease will naturally be reduced.

Hinge design of vivo X Fold (schematic diagram)

At the same time, unlike the mainstream 3mm bending radius in the industry, vivo X Fold has the smallest 2.3mm bending radius (left and right folding) in the industry. A smaller bending radius means that there are fewer areas to be bent in the screen. When the screen is closed, the whole machine fits tightly and fits perfectly. When it is unfolded, the crease is narrower and shallower, which effectively improves the utilization rate of screen space and balances the relief of crease and daily use.

Aiming at the problem of the supporting structure in the center of the screen, vivo X Fold added an integrated zirconium alloy keel in the center of the hinge as the "skeleton" of the whole hinge, and added an integrated zirconium alloy floating middle plate above the keel to imitate the biological characteristics of bird wings and move with the opening and closing of the mobile phone. When the screen is unfolded, the floating middle plate rises to provide support for the crease part, and the screen is smoother; When the screen is closed, the floating middle board descends, providing sufficient space for the screen to bend, protecting the screen and making the mobile phone more durable.

In order to solve the crease problem, vivo also started with the screen and used UTG ultra-tough glass for the inner screen of X Fold. This kind of glass has a unique staggered structure, which can greatly improve the compression resistance of the screen when it is folded under the premise of high light transmittance, thus allowing a smaller bending radius and making the screen more durable.

UTG glass adopts a unique staggered structure, which increases the outward tension by 1.3 times compared with the ordinary folding screen, and achieves good results in ensuring reliability and recoverability. The screen is less deformed when it is bent, and "recovered" faster after it is unfolded. At the same time, UTG glass is harder, which can provide the force of "propping up the screen outward" when the screen is bent, and protect the screen from being "broken" because the bending radius is too small, thus providing the possibility of reducing the bending radius and presenting a narrower and shallower crease.

From the crease solution of vivo X Fold, we can see the in-depth study of the crease problem by vivo. The water drop hinge relieves the crease problem, the floating middle board solves the support problem in the middle of the screen, and UTG glass makes the screen itself more resilient. After such a set of operations, the goal of vivo X Fold to make the crease lighter was achieved.

From the industry point of view, vivo’s crease solution can also be regarded as a high score answer sheet. We also have reason to believe that it will only be a matter of time before folding screen products become popular.

　　■ Hu Zhen

　　Although milk tea warms the heart, it is not good for the body. If you drink more, you should be careful to get fat, so "the first cup of milk tea in autumn" is not as good as "the first cup of health tea in autumn". Wei Wei, a nutritionist at Oriental Hospital of Beijing University of Chinese Medicine, said that milk tea was originally a healthy drink made of milk and black tea, and it has a long drinking history in the West, Inner Mongolia and Tibet. Drinking a cup of milk tea made by yourself in late autumn and winter can not only control the amount of sugar, but also ensure the use of milk 100%, which is delicious and healthy.

　　Wei Wei pointed out that homemade milk tea is very simple: first boil 250ml of water, turn off the fire after boiling; Pour 3 to 5 grams of tea leaves and stew for about 3 minutes. If you like strong tea flavor, you can stew for a long time. Then add 250ml milk to boil over low fire, and finally add sugar or honey to stir and filter, and you can make a cup of 500ml milk tea, whose nutritional value is almost the same as that of 250ml milk.

　　Wei Wei said that homemade milk tea can be added with foods such as ginger, brown sugar and jujube according to personal hobbies, with more colorful taste feelings. The ginger sugar and suye drink recorded in Herbal Huiyan can be matched with milk tea, which can help resist cold evil in autumn and winter, dispel wind and cold, warm the stomach and relieve exterior syndrome.

　　Milk tea with ginger, sugar and leaves. Usage: 3g of ginger, 3g of perilla leaf, 3g of black tea, 250ml of milk and 15g of brown sugar. Wash ginger and perilla leaf, shred them, put them in a teacup with black tea, add boiling water for 5-10 minutes, remove ginger, perilla leaf and black tea, and pour in milk and brown sugar to taste.

　　Function: Ginger and perilla leaves in this milk tea can warm and disperse cold, while milk and black tea can strengthen the spleen and warm the stomach. Adding brown sugar can not only relieve the spicy and bitter taste of ginger and perilla leaves, but also help milk and black tea warm the stomach and drive away cold. However, people with vegetarian yin deficiency or damp-heat connotation are not suitable.

　　Liver nourishing and eyesight improving tea. Zhang Yingying, an attending gynecologist of Guangdong Second Hospital of Traditional Chinese Medicine, recommended this autumn health-preserving tea. Usage: 15g of Lycium barbarum, 10g of Chrysanthemum morifolium and 10g of Dendrobium nobile, soaked in 1000ml of water for 15min, boiled for half an hour before drinking, or directly boiled in water.

　　Function: Nourish liver and improve eyesight, moisten lung and promote fluid production, which can be used to hurt lung due to dryness and heat, and also relieve computer users’ eye acidity and fatigue.

　　Tea for nourishing yin and stomach. Zhang Yingying also recommended this stomach-nourishing tea. Usage: 10 grams of lily, 10 grams of Polygonatum odoratum and 10 grams of lotus seeds, 5 pieces of jujube, soaked in 500 ml of water for 15 minutes, boiled for half an hour, and then drunk, or directly boiled in water.

　　Function: nourishing yin and moistening lung, benefiting stomach and promoting fluid production, suitable for yin deficiency constitution, relieving thirst and dry throat in autumn and improving dry skin in autumn.

　　Wei Wei suggested that if you want to drink milk tea on the market, you should pay special attention to matching food. High-energy snacks and cakes should be excluded, and some protein and foods with high dietary fiber content should be matched to balance nutrition, such as a piece of bread, a boiled egg and a vegetable salad.