TWI848535B - Electronic device - Google Patents

Abstract

An electronic device including a display panel and a displacement module is provided. The display panel sequentially includes a first display module, a light source module and a second display module from a first side to a second side. The first display module is arranged in a first accommodating space. The first display module includes a first polarizing element and a first liquid crystal element. The first polarizing element has a first polarization state. The second display module is arranged in a second accommodating space. The second display module includes a second polarizing element and a second liquid crystal element. The second polarizing element has a second polarization state. The displacement module is adapted to move at least one of the first display module and the second display module along a display direction of the display panel, and adjust the display panel to switch between normal display state and stereoscopic display state.

Description

Electronic devices

The present invention relates to an electronic device, and in particular to an electronic device capable of switching display modes.

With the change of hybrid working mode, two-in-one and form-changing electronic devices (such as laptops) that take into account the convenience of use and flexible task execution are becoming popular again. However, how to develop display screens that can be applied to display technology in different directions or stereoscopic display technology to increase interactivity and thus enhance the experience is one of the goals that can be extended and developed in this field.

The present invention provides an electronic device that can be applied to display technology in different directions or stereoscopic display technology, thereby providing a good display effect.

The present invention provides an electronic device having a first side and a second side opposite to each other. The electronic device includes a display panel and a displacement module. The display panel includes a first display module, a light source module and a second display module in sequence from the first side to the second side. The first display module is arranged in a first accommodating space to provide a first image beam toward the first side. The first display module includes a first polarizing element and a first liquid crystal element. The first polarizing element has a first polarization state. The first liquid crystal element is used to convert an illumination beam into a first image beam. The light source module includes a light-emitting element and a light-guiding element. The light-emitting element provides an illumination beam. The light-guiding element is arranged on a transmission path of the illumination beam. The second display module is arranged in a second accommodating space to provide a second image beam toward the second side. The second display module includes a second polarizing element and a second liquid crystal element. The second polarizing element has a second polarization state. The second liquid crystal element is used to convert the illumination beam into a second image beam. The display panel is disposed on the displacement module. The displacement module is used to move at least one of the first display module and the second display module along the display direction of the display panel and adjust the display panel to switch between the general display state and the stereoscopic display state.

In an embodiment of the present invention, the polarization direction of the first polarization state is perpendicular to the polarization direction of the second polarization state.

In an embodiment of the present invention, when the display panel is in a normal display state, the first liquid crystal element and the second liquid crystal element are closely attached to the light guide element.

In an embodiment of the present invention, the first image light beam is different from the second image light beam.

In an embodiment of the present invention, when the display panel is in a three-dimensional display state, at least one of the first liquid crystal element and the second liquid crystal element is separated from the light guide element by moving the displacement module.

In one embodiment of the present invention, the first polarization state is the same as the second polarization state.

In an embodiment of the present invention, the first image light beam is the same as the second image light beam.

In one embodiment of the present invention, the displacement module includes a first driving module connected to the first display module.

In one embodiment of the present invention, the first driving module is also connected to the second display module. The first driving module includes a slide rail, two bearings, a vortex rod and a driving element. The slide rail has a first accommodating space and a second accommodating space. The two bearings are respectively arranged in the first accommodating space and the second accommodating space, and are respectively connected to the first display module and the second display module. The vortex rod is passed through the two bearings. The driving element is fixed to the slide rail to rotate the vortex rod to drive the first display module and the second display module to move.

In one embodiment of the present invention, the displacement module further includes a second driving module connected to the second display module.

In one embodiment of the present invention, the above-mentioned first driving module includes a first sliding rail, a first permanent magnet, a first electromagnetic iron group and a first elastic member. The first sliding rail has a first accommodating space. The first permanent magnet is arranged in the first accommodating space and connected to the first display module. The first electromagnetic iron group is fixed to the first sliding rail to move the first permanent magnet to drive the first display module. The first elastic member is connected between the first permanent magnet and the first sliding rail. The second driving module includes a second sliding rail, a second permanent magnet, a second electromagnetic iron group and a second elastic member. The second sliding rail has a second accommodating space. The second permanent magnet is arranged in the second accommodating space and connected to the second display module. The second electromagnetic iron group is fixed on the second slide rail to move the second permanent magnet to drive and move the second display module. The second elastic member is connected between the second permanent magnet and the second slide rail.

In one embodiment of the present invention, the first liquid crystal element is located between the first polarizing element and the light-guiding element, and the second liquid crystal element is located between the second polarizing element and the light-guiding element.

Based on the above, in the electronic device of the present invention, the display panel is configured in the displacement module. The display panel includes a first display module and a second display module, and the displacement module is used to move at least one of the first display module and the second display module along the display direction of the display panel, thereby adjusting the display panel to switch between the general display state and the stereoscopic display state. In this way, display technology or stereoscopic display technology in different directions can be applied to provide a good display effect.

In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below and described in detail with reference to the accompanying drawings.

FIG1 is a schematic diagram of a display panel of an embodiment of the present invention. Please refer to FIG1. This embodiment provides a display panel 100 having a first side A1 and a second side A2, for providing a first image beam L21 toward the first side A1 and providing a second image beam L22 toward the second side A2. The display panel 100 is, for example, a display applied to a digital television, a tablet computer, or a notebook computer, and can be switched between a general display state and a stereoscopic display state to be applied to display technologies in different directions or stereoscopic display technologies.

In detail, the display panel 100 includes a first display module 110, a light source module 120, and a second display module 130 in sequence from the first side A1 to the second side A2. The light source module 120 is used to provide an illumination beam L1 to the first display module 110 and the second display module 130. Specifically, in this embodiment, the light source module 120 includes a light emitting element 122 and a light guide element 124. The light emitting element 122 provides the illumination beam L1, and the light guide element 124 is disposed on the transmission path of the illumination beam L1 to guide the illumination beam L1 to be transmitted toward the first side A1 and the second side A2. The light guide element 124 is, for example, a bidirectional light guide plate. However, the present invention does not limit the type or shape of the light emitting element 122 and the light guide element 124 in the light source module 120. The detailed structure and implementation method can be sufficiently taught, suggested and implemented by the common knowledge in the relevant technical field, so it will not be elaborated again.

FIG. 2 is a schematic diagram of a display screen of the display panel of FIG. 1 in a general display state. Please refer to FIG. 1 and FIG. 2 at the same time. The first display module 110 is used to provide a first image beam L21 toward the first side A1. The first display module 110 includes a first polarizing element 112 and a first liquid crystal element 114. The first polarizing element 112 has a first polarization state P1. The first liquid crystal element 114 is used to convert the illumination beam L1 into the first image beam L21. The second display module 130 is used to provide a second image beam L22 toward the second side A2. The second display module 130 includes a second polarizing element 132 and a second liquid crystal element 134. The second polarizing element 132 has a second polarization state P2. The second liquid crystal element 134 is used to convert the illumination beam L1 into the second image beam L22. In this embodiment, the first polarizing element 112 and the second polarizing element 132 are, for example, linear polarizers, and the first liquid crystal element 114 and the second liquid crystal element 134 are, for example, liquid crystal display panels (LCD). Specifically, the first liquid crystal element 114 is located between the first polarizing element 112 and the light guide element 124, and the second liquid crystal element 134 is located between the second polarizing element 132 and the light guide element 124.

Among them, in the present embodiment, the polarization direction of the first polarization state P1 is perpendicular to the polarization direction of the second polarization state P2. In other words, the first polarization element 112 and the second polarization element 132 are arranged in polarization states perpendicular to each other. Therefore, the ambient light beam LE from the outside will not be able to continuously pass through the first polarization element 112 and the second polarization element 132. In this way, the image interference from the opposite display module can be filtered out, thereby ensuring that the two-way display screen of the display panel 100 is independent and clean. When the display panel 100 is in a normal display state, the first liquid crystal element 114 and the second liquid crystal element 134 are closely attached to the light-guiding element 124. In addition, in a display scenario in the present embodiment, the first image beam L21 is different from the second image beam L22, such as the front view and the back view of any object, as shown in Figure 2. In this way, the user can obtain different display images from different directions (ie, the first display module 110 and the second display module 130 ) on the same display panel 100 .

FIG3 is a schematic diagram of a display panel of another embodiment of the present invention. Please refer to FIG3. The display panel 100A of this embodiment is similar to the display panel 100 of FIG1. The difference between the two is that, in this embodiment, the first polarization state P1 in the display panel 100A is the same as the second polarization state P2. In other words, the first polarization element 112 and the second polarization element 132 are arranged in parallel with each other in polarization state. Therefore, the ambient light beam LE from the outside world can be continuously transmitted through the first polarization element 112 and the second polarization element 132. In this way, the images from the opposite display modules will overlap with each other, thereby enabling the two-way display screen of the display panel 100A to produce a three-dimensional superimposed visual effect. In addition, the display panel 100A of this embodiment can be further switched to a three-dimensional display state. When the display panel 100A is in a three-dimensional display state, at least one of the first liquid crystal element 114 and the second liquid crystal element 134 is spaced apart from the light guide element 124 , and the first image beam L21 is the same as the second image beam L22 .

FIG. 4A and FIG. 4B are schematic diagrams of an electronic device according to an embodiment of the present invention. Please refer to FIG. 3 to FIG. 4B. This embodiment provides an electronic device 10 having a first side A1 and a second side A2 opposite to each other. The electronic device 10 includes a display panel 100A and a displacement module 200, and the display panel 100A is configured on the displacement module 200. The display state of the display panel 100A of FIG. 4A is the display panel 100 of FIG. 1, and the display state of the display panel 100A of FIG. 4B can use the display panel 100A of FIG. 3. Continuing from the previous paragraph, in this embodiment, at least one of the first display module 110 and the second display module 130 is moved along the display direction of the display panel 100A by the displacement module 200, so that at least one of the first liquid crystal element 114 and the second liquid crystal element 134 is spaced from the light guide element 124, thereby adjusting the display panel 100A to switch between the normal display state and the stereoscopic display state.

FIG5 is a schematic diagram of the display screen of the electronic device of FIG4A in the stereoscopic display state. Please refer to FIG3 to FIG5 at the same time. In order to achieve the switching between the normal display state and the stereoscopic display state of the display panel 100A, when the display panel 100A is in the stereoscopic display state, at least one of the first liquid crystal element 114 and the second liquid crystal element 134 is separated from the light guide element 124 through the movement of the displacement module 200. The first liquid crystal element 114 and the second liquid crystal element 134 can be mechanically adjusted in distance. For example, in this embodiment, referring to FIG. 4A to FIG. 4B , the displacement module 200 has a first accommodating space E1 and a second accommodating space E2 arranged in sequence from the first side A1 to the second side A2, and the first display module 110 and the second display module 130 are respectively disposed in the first accommodating space E1 and the second accommodating space E2. The displacement module 200 includes a first driving module 210 connected to the first display module 110 and the second display module 130. The first driving module 210 includes a slide rail 212, two bearings 214, a vortex rod 216, and a driving element 218. The slide rail 212 has the above-mentioned first accommodating space E1 and the second accommodating space E2. The two bearings 214 are respectively disposed in the first accommodating space E1 and the second accommodating space E2, and are respectively connected to the first display module 110 and the second display module 130. The vortex 216 is penetrated through the two bearings 214. The driving element 218 is, for example, a stepper motor or a servo motor, fixed to the slide rail 212, and is used to rotate the vortex 216 to drive and move the first display module 110 and the second display module 130. Specifically, the vortex 216 has an external thread structure, and the two bearings 214 have an internal thread structure adapted to the vortex 216. It should be noted that the internal threads of the vortex rod 216 in the first accommodating space E1 and the second accommodating space E2 are opposite to each other, wherein the vortex rod 216 can be formed in an integral manner or in a connected manner, and the corresponding two supporting members 214 are also internal threads with opposite directions. Therefore, when the vortex rod 216 is driven to rotate by the driving element 218, the two supporting members 214 can move outward according to the thread structure, so that the first display module 110 is unfolded toward the first side A1 and the second display module 130 is unfolded toward the second side A2. In this way, the user can obtain a display screen with a three-dimensional effect in any direction (i.e., the first display module 110 or the second display module 130). On the contrary, by driving the worm 216 through the driving element 218, the two carriers 214 can be moved inward according to the threaded structure to retract the first display module 110 and the second display module 130, thereby switching back to the normal display state.

FIG. 6A and FIG. 6B are schematic diagrams of an electronic device of an embodiment of the present invention. Please refer to FIG. 3 , FIG. 6A and FIG. 6B. The electronic device 10A shown in this embodiment is similar to the electronic device 10 shown in FIG. 4A and FIG. 4B . The difference between the two is that, in this embodiment, the first liquid crystal element 114 and the second liquid crystal element 134 can be electromagnetically adjusted. For example, in this embodiment, the displacement module 200A includes a first drive module 210A and a second drive module 220, wherein the first drive module 210A is connected to the first display module 110, and the second drive module 220 is connected to the second display module 130. In detail, the first driving module 210A includes a first slide rail 212A, a first permanent magnet 214A, a first electromagnetic group 216A and a first elastic member 218A. The first slide rail 212A has a first accommodation space E1. The first permanent magnet 214A is disposed in the first accommodation space E1 and connected to the first display module 110. The first electromagnetic group 216A is fixed to the first slide rail 212A to move the first permanent magnet 214A to drive the first display module 110. The first elastic member 218A is connected between the first permanent magnet 214A and the first slide rail 212A. Similarly, the second driving module 220 includes a second slide rail 222, a second permanent magnet 224, a second electromagnetic iron group 226 and a second elastic member 228. The second slide rail 222 has a second accommodating space E2. The second permanent magnet 224 is disposed in the second accommodating space E2 and connected to the second display module 130. The second electromagnetic iron group 226 is fixed to the second slide rail 222 to move the second permanent magnet 224 to drive the second display module 130. The second elastic member 228 is connected between the second permanent magnet 224 and the second slide rail 222. The first elastic member 218A and the second elastic member 228 are, for example, springs.

Therefore, when switching to the three-dimensional display state, the first electromagnetic iron group 216A and the second electromagnetic iron group 226 can generate magnetic attraction to the first permanent magnet 214A and the second permanent magnet 224 respectively by energizing, so that the first permanent magnet 214A and the second permanent magnet 224 respectively drive the first display module 110 to expand toward the first side A1 and the second display module 130 to expand toward the second side A2. In this way, the user can obtain a display screen with a three-dimensional effect in any direction (i.e., the first display module 110 or the second display module 130). On the contrary, when the first electromagnetic iron group 216A and the second electromagnetic iron group 226 are de-energized, the first display module 110 and the second display module 130 will be moved inward by the pulling force generated by the first elastic member 218A and the second elastic member 228 respectively to retract the first display module 110 and the second display module 130, and then switch back to the normal display state.

It is worth mentioning that in this embodiment, the elastic force generated on the first display module 110 and the second display module 130 at different corresponding positions can be obtained according to the elastic coefficients of the first elastic member 218A and the second elastic member 228. Therefore, in this embodiment, the actual moving distance of the first display module 110 and the second display module 130 can be controlled by controlling the magnetic force generated by the first electromagnetic iron group 216A and the second electromagnetic iron group 226 on the first display module 110 and the second display module 130, and then the distance between the first display module 110 and the second display module 130 and the light source module 120 can be accurately adjusted to obtain a better three-dimensional display effect.

Regarding the calculation principle of the moving distance, the distance d between the first liquid crystal element 114 and the light-guiding element 124 can be defined first, the elastic coefficient of the first elastic element 218A is k, and the magnetic force between the first electromagnetic iron group 216A and the first permanent magnet 214A (the relationship between the magnetic force generated by electricity and the distance between the permanent magnets has been taken into account) is Fa. When the required displacement is 𝑑∆, the required force can be calculated by the elastic coefficient as: |𝑑∆ |‧𝑘=𝐹𝑑∆. At this time, input power to make the magnetic force reach F𝑎= 𝐹𝑑∆, and the first liquid crystal element 114 can be moved to the correct position. Similarly, the above-mentioned calculation principle of the moving distance can also be applied to the second display module 130 for calculation.

It should be noted that in the embodiments of FIG. 4B and FIG. 6B , the first display module 110 and the second display module 130 can move synchronously or asynchronously relative to the moving distance of the light guide element 124. In addition, by adjusting the different moving distances between the first display module 110 and the second display module 130, three-dimensional superpositions of different depths can be generated to provide more diverse three-dimensional display effects.

In summary, in the electronic device of the present invention, the display panel is configured in the displacement module. The display panel includes a first display module and a second display module, and the displacement module is used to move at least one of the first display module and the second display module along the display direction of the display panel, thereby adjusting the display panel to switch between the general display state and the stereoscopic display state. In this way, display technology in different directions or stereoscopic display technology can be applied to provide a good display effect.

Although the present invention has been disclosed as above by the embodiments, they are not intended to limit the present invention. Any person with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be defined by the scope of the attached patent application.

10,10A: electronic device 100,100A: display panel 110: first display module 112: first polarizing element 114: first liquid crystal element 120: light source module 122: light emitting element 124: light guide element 130: second display module 132: second polarizing element 134: second liquid crystal element 200,200A: displacement module 210,210A: first drive module 212: slide rail 212A: first slide rail 214: carrier 214A: first permanent magnet 216: vortex rod 216A: first electromagnetic iron group 218: drive element 218A: first elastic member 220: second drive module 222: second slide rail 224: second permanent magnet 226: second electromagnetic iron group 228: second elastic member A1: first side A2: second side E1: first accommodating space E2: second accommodating space L1: illumination beam L21: first image beam L22: second image beam LE: ambient beam P1: first polarization state P2: second polarization state

FIG. 1 is a schematic diagram of a display panel of an embodiment of the present invention. FIG. 2 is a schematic diagram of a display screen of the display panel of FIG. 1 in a general display state. FIG. 3 is a schematic diagram of a display panel of another embodiment of the present invention. FIG. 4A and FIG. 4B are schematic diagrams of an electronic device of an embodiment of the present invention. FIG. 5 is a schematic diagram of a display screen of the electronic device of FIG. 4A in a three-dimensional display state. FIG. 6A and FIG. 6B are schematic diagrams of an electronic device of an embodiment of the present invention.

10: Electronic devices

100A: Display panel

110: First display module

120: Light source module

130: Second display module

200: Displacement module

210: First drive module

212: Slide rail

214: Carrier

216: Vortex

218: Driving element

A1: First side

A2: Second side

E1: The first storage space

E2: Second storage space

Claims (12)

An electronic device has a first side and a second side opposite to each other, the electronic device comprising: a display panel, the display panel comprising, from the first side to the second side, a first display module, arranged in a first accommodation space, for providing a first image beam toward the first side, the first display module comprising: a first polarizing element, having a first polarization state; and a first liquid crystal element, for converting an illumination beam into the first image beam; a light source module, comprising: a light emitting element, for providing the illumination beam; and a light guide element, arranged on a transmission path of the illumination beam; and a second display module, arranged in the second accommodation space, for providing a second image beam toward the second side, the second display module comprising: a second polarizing element having a second polarization state; and a second liquid crystal element, for converting the illumination beam into the second image beam; and a displacement module, the display panel being arranged in the displacement module, the displacement module being used to move at least one of the first display module and the second display module along the display direction of the display panel, and adjusting the display panel to switch between a general display state and a stereoscopic display state. An electronic device as described in claim 1, wherein the polarization direction of the first polarization state is perpendicular to the polarization direction of the second polarization state. An electronic device as described in claim 1, wherein when the display panel is in a normal display state, the first liquid crystal element and the second liquid crystal element are closely attached to the light guide element. An electronic device as described in claim 3, wherein the first image beam is different from the second image beam. An electronic device as described in claim 1, wherein when the display panel is in a three-dimensional display state, at least one of the first liquid crystal element and the second liquid crystal element is separated from the light-guiding element by moving the displacement module. An electronic device as described in claim 5, wherein the first polarization state is the same as the second polarization state. An electronic device as described in claim 5, wherein the first image beam is the same as the second image beam. An electronic device as described in claim 1, wherein the displacement module includes: a first driving module connected to the first display module. The electronic device as described in claim 8, wherein the first drive module is also connected to the second display module, and the first drive module includes: a slide rail having the first accommodation space and the second accommodation space; two bearing members, respectively disposed in the first accommodation space and the second accommodation space, and respectively connected to the first display module and the second display module; a vortex rod, which is passed through the two bearing members; and a drive element, which is fixed to the slide rail and used to rotate the vortex rod to drive and move the first display module and the second display module. As described in claim 8, the displacement module further includes: a second drive module connected to the second display module. The electronic device as described in claim 10, wherein the first driving module comprises: a first slide rail having a first accommodation space; a first permanent magnet disposed in the first accommodation space and connected to the first display module; a first electromagnetic iron group fixed to the first slide rail for moving the first permanent magnet to drive the first display module; and a first elastic member connected between the first permanent magnet and the first slide rail; and the second driving module comprises: a second slide rail having a second accommodation space; a second permanent magnet disposed in the second accommodation space and connected to the second display module; a second electromagnetic iron group fixed to the second slide rail for moving the second permanent magnet to drive the second display module; and a second elastic member connected between the second permanent magnet and the second slide rail. An electronic device as described in claim 1, wherein the first liquid crystal element is located between the first polarizing element and the light-guiding element, and the second liquid crystal element is located between the second polarizing element and the light-guiding element.

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