CN112333310A - Foldable screen and foldable screen mobile terminal - Google Patents

本申请涉及折叠屏技术，提供一种可折叠屏幕以及折叠屏移动终端。可折叠屏幕包括盖板、两个屏幕以及导光件；所述盖板位于外侧面；两个所述屏幕均包括一个侧向显示部，两个所述侧向显示部均面向两个所述屏幕之间的导光件；所述导光件包括两个反光面，两个所述反光面分别对应两个所述侧向显示部，以分别将各所述侧向显示部的显示画面向所述盖板一侧反射，以透过所述盖板向外侧显示。由于利用反光镜的反射输出原理，将左右两侧的屏幕的显示内容向外反射，使屏幕显示内容传递到用户眼中。左右两侧屏幕各自独立存在，可以各自单独折叠展开运动，相互之间相对自由。

The present application relates to folding screen technology, and provides a foldable screen and a mobile terminal with a folding screen. The foldable screen includes a cover plate, two screens and a light guide; the cover plate is located on the outer side; both the screens include a side display part, and the two side display parts face the two side display parts. A light guide member between the screens; the light guide member includes two reflective surfaces, and the two reflective surfaces correspond to the two lateral display parts respectively, so as to respectively direct the display images of the lateral display parts to the two side display parts. One side of the cover plate is reflected so as to be displayed to the outside through the cover plate. Due to the reflection output principle of the mirror, the display contents of the left and right sides of the screen are reflected outward, so that the screen display contents are transmitted to the user's eyes. The left and right screens exist independently, and can be folded and unfolded independently of each other, and are relatively free from each other.

Foldable screen and foldable screen mobile terminal

Technical Field

The application relates to a folding screen technology, in particular to a foldable screen and a folding screen mobile terminal.

Background

With the progress of science and technology, mobile electronic devices such as smart phones and the like are rapidly developed, the smart phones are more and more powerful, large-size screens are a mainstream development trend for improving the use convenience of the smart phones, and folding screens are produced for taking the portability into consideration. However, the folding and unfolding processes of the current folding screen mobile phone both need manual operation, and the use process is very inconvenient.

In the existing folding screen mobile phone, almost all large mobile phone manufacturers are vigorously researching and developing folding smart phones since the release of the three-star second generation folding mobile phone and Hua Mate X. The folding modes of the folding mobile phone in the market at present can be roughly divided into four types:

(1) for example, a folding screen mobile phone with the model of Samsung Galaxy Fold adopts a left-right inward folding mode, the screen is distributed on a left shell and a right shell, and the screen is folded inside when the mobile phone is closed.

(2) For example, the foldable screen mobile phone, hua is the Mate X, adopts the left and right external folding mode, and the screen is distributed on the left and right two casings, and when the mobile phone is closed, the screen is wrapped outside the casings.

(3) For example, a mobile phone with a Motorola Razr 2019 folding screen adopts a water drop-shaped up-down inward folding mode, the screen is distributed on an upper shell and a lower shell, and the screen is folded inside when the mobile phone is closed.

(4) For example, a mobile phone with a Samsung Galaxy Z Flip folding screen adopts a U-shaped up-down inward folding mode, the screen is distributed on an upper shell and a lower shell, and the screen is folded inside when the mobile phone is closed.

The above four folding modes are all realized by a mechanical mechanism of a folding hinge. However, the folding hinge of the existing folding mobile phone has a complex mechanical structure, large accumulated assembly tolerance and easy abrasion after long-time use, so that the precision is difficult to guarantee.

On the other hand, the existing folding mobile phone is generally formed by a whole flexible screen, so that the folding must ensure the synchronous movement of two sides, and the screens on the two sides cannot move independently.

Disclosure of Invention

In order to solve the technical problem that the mechanical structure of the folding hinge is complex in the technology, the application provides a foldable screen independent of the folding hinge with a complex structure and a foldable screen mobile terminal.

In a first aspect, the present application provides a foldable screen comprising a cover plate, two screens, and a light guide; the cover plate is positioned on the outer side surface; the two screens respectively comprise a lateral display part, and the two lateral display parts respectively face to the light guide part between the two screens; the light guide piece comprises two light reflecting surfaces, the two light reflecting surfaces correspond to the two lateral display parts respectively so as to reflect the display pictures of the lateral display parts to one side of the cover plate respectively and display the pictures to the outside through the cover plate.

In an embodiment of the application, each of the screens is L-shaped, and the lateral display portion is a bending portion at one end of the screen.

In an embodiment of the present application, the lateral side of the lateral display portion and the outer side of the screen combining portion are rounded.

In an embodiment of the present invention, a light guide portion is combined outside the circular guide corner, and the light guide portion has a lateral light exit surface facing the light guide member, so as to reflect the display image outside the circular guide corner through the light guide member.

In an embodiment of the present application, the light guide portion is made of a cured optical adhesive.

In an embodiment of the present application, the lateral light-emitting surface is combined with a filter film for emitting light directionally.

In an embodiment of the present application, the cover plate is a polyimide film or a polyester film.

In an embodiment of the present application, the cover plate has a filter film for guiding light to the outside in a single direction, and the filter film is located on a side facing the light guide member.

In an embodiment of the application, two ends of the filter film are aligned with the positions of the lateral display portions on two sides.

In an embodiment of the present application, the cross-section of the light guide member is triangular, two the reflective surface is located on two symmetrical inclined planes of the light guide member.

In an embodiment of the application, the two light reflecting surfaces form an inclination angle of 45 degrees with respect to the lateral display portion.

Another aspect of the present application provides a foldable screen mobile terminal including the foldable screen as described above.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

in the technical scheme of the screen, the cover plate is positioned on the outer side surface; the two screens respectively comprise a lateral display part, and the two lateral display parts respectively face to the light guide part between the two screens; the light guide piece comprises two light reflecting surfaces, the two light reflecting surfaces correspond to the two lateral display parts respectively so as to reflect the display pictures of the lateral display parts to one side of the cover plate respectively and display the pictures to the outside through the cover plate. Due to the fact that the reflection output principle of the reflector is utilized, the display contents of the screens on the left side and the right side are reflected outwards, and the display contents of the screens are transmitted to eyes of a user. The left screen and the right screen are independent, can be independently folded and unfolded to move and are relatively free.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic view of a foldable screen in a back view structure according to an embodiment of the present application.

Fig. 2 is a schematic side view of a foldable screen according to an embodiment of the present disclosure.

Fig. 3 is a schematic front view of a foldable screen according to an embodiment of the present application.

Fig. 4 is a schematic perspective view of a foldable screen according to an embodiment of the present application.

Fig. 5 is an exploded schematic view of a foldable screen according to an embodiment of the present application.

Fig. 6 is a schematic view of a part a of the enlarged structure in fig. 2.

Fig. 7 is a schematic side view of a foldable screen folding state according to an embodiment of the present application.

Fig. 8 is a schematic perspective view of a folded state of a foldable screen according to an embodiment of the present application.

Fig. 9 is a schematic view of a part of the enlarged structure at B in fig. 7.

Fig. 10 is a partial enlarged structural diagram of a foldable screen provided in another embodiment of the present application in an unfolded state.

Fig. 11 is a partial enlarged structural view of a folded state of a foldable screen according to another embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to solve the technical problem that the mechanical structure of the folding hinge is complex in the technology, the application provides a foldable screen independent of the folding hinge with a complex structure and a foldable screen mobile terminal.

In the technical scheme of the screen, the cover plate is positioned on the outer side surface; the two screens respectively comprise a lateral display part, and the two lateral display parts respectively face to the light guide part between the two screens; the light guide piece comprises two light reflecting surfaces, the two light reflecting surfaces correspond to the two lateral display parts respectively so as to reflect the display pictures of the lateral display parts to one side of the cover plate respectively and display the pictures to the outside through the cover plate. Due to the fact that the reflection output principle of the reflector is utilized, the display contents of the screens on the left side and the right side are reflected outwards, and the display contents of the screens are transmitted to eyes of a user. The left screen and the right screen are independent, can be independently folded and unfolded to move and are relatively free.

It should be understood that the present application is mainly conceived in that a foldable screen is composed of two or more screens, a visual effect is maintained by a cover plate at one outer side, and display screen output of a screen joint is accomplished by light guides respectively facing the screens at both sides. Therefore, it is considered that various modifications or improvements based on the above main technical idea should fall within the scope covered by the claims of the present application.

Example one

Fig. 1 is a schematic view of a back view structure of a foldable screen provided in an embodiment of the present application, fig. 2 is a schematic view of a side view structure of the foldable screen provided in the embodiment of the present application, fig. 3 is a schematic view of a front view structure of the foldable screen provided in the embodiment of the present application, fig. 4 is a schematic view of a three-dimensional structure of the foldable screen provided in the embodiment of the present application, fig. 5 is a schematic view of an exploded structure of the foldable screen provided in the embodiment of the present application, and fig. 6 is a schematic view of a partially enlarged structure at a position a in fig. 2.

Fig. 7 is a side view structural diagram of a foldable screen folded state according to an embodiment of the present application, fig. 8 is a three-dimensional structural diagram of a foldable screen folded state according to an embodiment of the present application, and fig. 9 is a partial enlarged structural diagram at B in fig. 7.

As described herein, the foldable screen of the conventional foldable mobile phone is a one-piece flexible screen module, and the allowed foldable area is fixed and generally arranged in the middle; therefore, the screens on the left side and the right side need to move simultaneously, and the flexible screen module is not subjected to external force when being folded.

The optical OCA glue can be arranged between the flexible screen module, the periscopic reflector and the cover plate, so that light can penetrate through the optical OCA glue and the display effect is not influenced.

Compared with the traditional folding mobile phone driven by a mechanical hinge, the mobile phone not only utilizes the periscope principle of the reflector to reflect the display contents of the flexible screens at the left side and the right side, so that the display contents of the screens are transmitted to the eyes of users; and the left and right flexible screens exist independently, can be folded and unfolded independently and move freely relative to each other.

Example two

Fig. 10 is a partial enlarged structural view of an unfolded foldable screen according to another embodiment of the present application, and fig. 11 is a partial enlarged structural view of a folded foldable screen according to another embodiment of the present application.

The main difference between the following description of the further modified embodiment compared to the previous embodiment is that:

In the embodiment, the display picture in the rounded corner area of the screen can be reflected and displayed more truly, and the situation of transverse stretching can be avoided.

Another aspect of the present application provides a foldable screen mobile terminal including the foldable screen as described above.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.