TWI775547B - Foldable electronic device and controlling method thereof - Google Patents

Abstract

A foldable electronic device and a controlling method thereof are provided. The foldable electronic device includes a first supporting mechanism, a second supporting mechanism, a third supporting mechanism, a flexible display panel, a first light sensing unit, a second light sensing unit, a third light sensing unit and a processing unit. The flexible display panel has a first light transmission area, a second light transmission area and a third light transmission area. The processing unit determines a folding state of the foldable electronic device according to a combination of a first light sensing measurement of the first light sensing unit, a second light sensing measurement of the second light sensing unit, and a third light sensing measurement of the third light sensing unit.

Description

Foldable electronic device and control method thereof

The present disclosure relates to an electronic device and a control method thereof, and more particularly, to a foldable electronic device and a control method thereof.

With the advancement of display technology, various electronic devices equipped with display panels are constantly being introduced. Conventionally, an electronic device may adopt a foldable design, so that the electronic device can be reduced in size when folded, so as to facilitate portability or storage.

A common foldable electronic device includes a top cover and a base, the display panel is usually fixed on the top cover, and the keyboard is usually fixed on the base. The user can open the top cover to use the keyboard and display panel. Alternatively, the user can close the upper cover to accommodate the foldable electronic device. The foldable electronic device is suitable for paperwork.

However, the current folding methods of the foldable electronic device do not change much, and the position of the display panel cannot be changed, which limits the application scope of the foldable electronic device.

The present disclosure relates to a foldable electronic device and a control method thereof. The first light sensing measurement and the second light sensing measurement obtained by the first light sensing unit, the second light sensing unit, and the third light sensing unit are used. The combination of the measurement and the third light-sensing measurement is used to analyze the folding state of the foldable electronic device, and perform corresponding display control accordingly. In this way, users can be provided with more diverse application scopes.

According to an aspect of the present disclosure, a foldable electronic device is provided. The foldable electronic device includes a first carrying mechanism, a second carrying mechanism, a third carrying mechanism, a flexible display panel, a first light-sensing unit, a second light-sensing unit, and a third light-sensing unit unit and a processing unit. The second bearing mechanism is rotatably connected to the first bearing mechanism so as to be folded relative to the first bearing mechanism. The third bearing mechanism is slidably connected to the second bearing mechanism so as to extend toward the outside of the second bearing mechanism. The flexible display panel is slidably arranged on the first bearing mechanism, the second bearing mechanism and the third bearing mechanism. The flexible display panel has a first transparent area, a second transparent area and a third transparent area. The first light sensing unit is arranged on the third carrying mechanism. The first light sensing unit senses a first light sensing measurement according to the corresponding relationship between the first light sensing unit and the first light transmission area. The second light sensing unit is disposed on the third carrying mechanism. The second light sensing unit senses a second light sensing measurement according to the corresponding relationship between the second light sensing unit and the second light transmission area. The third light sensing unit is disposed on the first carrying mechanism. The third light sensing unit senses a third light sensing measurement according to the corresponding relationship between the third light sensing unit and the third light transmission area. The processing unit determines a folding state of the foldable electronic device according to the combination of the first light sensing measurement, the second light sensing measurement and the third light sensing measurement.

According to another aspect of the present disclosure, a control method of a foldable electronic device is provided. The foldable electronic device includes a first carrying mechanism, a second carrying mechanism, a third carrying mechanism, a flexible display panel, a first light sensing unit, a second light sensing unit and a third light sensing unit unit. The second bearing mechanism is rotatably connected to the first bearing mechanism. The third bearing mechanism is slidably connected to the second bearing mechanism. The flexible display panel is slidably arranged on the first bearing mechanism, the second bearing mechanism and the third bearing mechanism. The flexible display panel has a first transparent area, a second transparent area and a third transparent area. The first light sensing unit and the second light sensing unit are arranged on the third carrying mechanism. The third light sensing unit is disposed on the first carrying mechanism. The control method includes the following steps. The second bearing mechanism is driven to rotate relative to the first bearing mechanism, the third bearing mechanism is driven to slide relative to the second bearing mechanism, or the flexible display panel is driven to slide. The first light sensing unit, the second light sensing unit, and the third light sensing unit are based on the first light sensing unit, the second light sensing unit, the third light sensing unit and the first light transmission area, the second The correspondence between the light-transmitting area and the third light-transmitting area is used to sense a first light-sensing measurement, a second light-sensing measurement, and a third light-sensing measurement. According to the combination of the first light sensing measurement, the second light sensing measurement and the third light sensing measurement, a folded state of the foldable electronic device is determined. One of the flexible display panels is controlled to display content according to the folded state.

According to yet another aspect of the present disclosure, a flexible display panel is provided. The flexible display panel includes a flexible transparent substrate and several active light-emitting elements. These active light-emitting elements are distributed on a flexible transparent substrate. The density of the active light-emitting elements disposed in a first light-transmitting area, a second light-transmitting area, and a third light-transmitting area is lower than that of the active light-emitting elements disposed in a non-light-transmitting area.

In order to have a better understanding of the above-mentioned and other aspects of the present disclosure, the following embodiments are given and described in detail with the accompanying drawings as follows:

Please refer to FIGS. 1A to 1F , which are schematic diagrams illustrating various folded states of the foldable electronic device 100 according to an embodiment. The foldable electronic device 100 of this embodiment includes six folded states. As shown in FIG. 1A , in the notebook computer mode, the flexible display panel 140 is divided into a display area A1 and a display area A2 . The display area A1 occupies 50% and is about 13.19 inches; the display area A2 occupies 50% and is about 13.19 inches. The display area A1 is located in the upper half, for example, for displaying the main screen; the display area A2 is located in the lower half, for example, for displaying the touch keyboard and the touch area. In the notebook computer mode, a touch keyboard and touch area are provided, which are suitable for document reading, word processing with minor revisions, web page query and other operations.

As shown in FIG. 1B , in the working mode, the flexible display panel 140 is pushed upward, so that the display area B1 is enlarged and the display area B2 is reduced, and the flexible display panel 140 exposes the physical keyboard. The display area B1 occupies 70% and is about 15.74 inches; the display area B2 occupies 30% and is about 11.18 inches. The display area B1 is located in the upper half, for example, for displaying a larger main screen; the display area B2 is located in the lower half, for example, for displaying the touch area. In the working mode, it provides a physical keyboard and a large-area main screen, which is suitable for word processing of a large number of text input.

As shown in FIG. 1C , in the large-screen mode, the flexible display panel 140 is further pushed upward, so that the display area C1 becomes larger and the display area C2 shrinks smaller, and the flexible display panel 140 exposes the physical keyboard and the physical touch panel. control panel. The display area C1 occupies 85% and is about 17.8 inches; the display area C2 occupies 15% and is about 10.2 inches. The display area C1 is located in the upper half, for example, for displaying a larger main screen; the display area C2 is located in the lower half, for example, for displaying touch buttons. In the large-screen mode, it provides a large-area main screen, a physical keyboard and a physical touchpad, suitable for movie viewing or drawing operations.

As shown in FIG. 1D , in the sharing mode, the upper half of the flexible display panel 140 is further folded back so that the display area C1 is divided into a display area D1 and a display area D2 . The display area D1 occupies 35% and is about 11.61 inches; the display area D2 occupies 50% and is about 13.2 inches; the display area D3 occupies 15% and is about 10.2 inches. The display area D1 faces the front of the user, for example, for displaying brief information; the display area D2 faces the user, for example, for displaying the main screen; the display area D3 is located in the lower half, for example, for displaying touch buttons. In the sharing mode, a display area D1 facing the front of the user is provided, which is convenient for the counter operation and allows the negotiator to know the brief information of the application.

As shown in FIG. 1E, in the smart assistant mode, the lower half of the flexible display panel 140 is closed, and only the topmost display area E1 is exposed. The display area E1 occupies 35%, which is about 11.61 inches. The display area E1 faces the user, for example, for displaying some brief information. In the smart assistant mode, only a small display area E1 is provided, which is suitable for brief information such as clock, weather, and calendar.

As shown in FIG. 1F, in the reading mode, the flexible display panel 140 is divided into a display area F1 and a display area F2. The display area F1 occupies 50% and is about 13.19 inches; the display area F2 occupies 50% and is about 13.19 inches. The display area F1 is located in the left half; the display area F2 is located in the right half. In the reading mode, the display screen on the left and right sides is provided, which is suitable for operations such as e-book reading.

Please refer to FIG. 2, which illustrates a flexible display panel 140 according to an embodiment. The flexible display panel 140 includes a flexible transparent substrate SB and a plurality of active light emitting elements LE. The material of the flexible transparent substrate SB is, for example, transparent polyimide (PI). The active light-emitting elements LE are distributed on the flexible transparent substrate SB. The active light-emitting element LE is, for example, a red OLED, a green OLED or a blue OLED. The number of red OLEDs is the same as the number of blue OLEDs. The number of green OLEDs is twice the number of red OLEDs. The flexible display panel 140 has first light transmission areas PA1 and PB1 , second light transmission areas PA2 and PB2 and third light transmission areas PA3 and PB3 . The first light transmission area PA1, the second light transmission area PA2 and the third light transmission area PA3 are located at a side edge of the flexible display panel 140; the first light transmission area PB1, the second light transmission area PB2 and the third light transmission area PB3 on the other side edge of the flexible display panel 140 .

The density of the active light-emitting elements LE disposed in the first light-transmitting regions PA1, PB1, the second light-transmitting regions PA2, PB2, and the third light-transmitting regions PA3, PB3 is lower than that where the active light-emitting elements LE are disposed in the non-light-transmitting region P0 density. Therefore, ambient light can smoothly penetrate the first light transmission areas PA1, PB1, the second light transmission areas PA2, PB2, and the third light transmission areas PA3, PB3, but it is difficult to penetrate the non-light transmission area P0.

In another embodiment, the flexible display panel 140 may only have the first light transmission area PA1 , the second light transmission area PA2 and the third light transmission area PA3 .

Please refer to FIGS. 3A to 3F , which are schematic side views of the foldable electronic device 100 in various folded states according to an embodiment. The foldable electronic device 100 includes a first carrying mechanism 110 , a second carrying mechanism 120 , a third carrying mechanism 130 , a flexible display panel 140 , first light sensing units SA1 , SB1 , and second light sensing units SA2 , SB2 and the third light sensing units SA3 and SB3. The second carrying mechanism 120 is rotatably connected to the first carrying mechanism 110 so as to be folded relative to the first carrying mechanism 110 . The third bearing mechanism 130 is slidably connected to the second bearing mechanism 120 to extend toward the outside of the second bearing mechanism 120 . The flexible display panel 140 is slidably disposed on the first carrier mechanism 110 , the second carrier mechanism 120 and the third carrier mechanism 130 .

The first light sensing units SA1 and SB1 are disposed on the third bearing mechanism 130 . The first light sensing units SA1 and SB1 sense the first light sensing measurements LA1 and LB1 (marked in FIG. 4 ) according to the corresponding relationship between the first light sensing units SA1 and SB1 and the first light transmission areas PA1 and PB1 . The first light-sensing unit SA1 and the first light-sensing unit SB1 are disposed at corresponding positions on both sides of the third carrier mechanism 130 , and the first light-transmitting area PA1 and the first light-transmitting area PB1 are disposed between the flexible display panel 140 . The corresponding positions of the edges on both sides. Therefore, the first light-sensing measurement LA1 and the first light-sensing measurement LB1 will generally be the same.

The second light sensing units SA2 and SB2 are disposed on the third supporting mechanism 130 . The second light sensing units SA2, SB2 sense the second light sensing measurements LA2, LB2 (marked in FIG. 4) according to the corresponding relationship between the second light sensing units SA2, SB2 and the second light transmission areas PA2, PB2. The second light-sensing unit SA2 and the second light-sensing unit SB2 are disposed at the corresponding positions of the two side edges of the third carrier 130 , and the second light-transmitting area PA2 and the second light-transmitting area PB2 are disposed between the flexible display panel 140 . The corresponding positions of the edges on both sides. Therefore, the second light sensing measurement LA2 and the second light sensing measurement LB2 will generally be the same.

The third light sensing units SA3 and SB3 are disposed on the first supporting mechanism 110 . The third light sensing units SA3 and SB3 sense the third light sensing measurements LA3 and LB3 (marked in FIG. 4 ) according to the corresponding relationship between the third light sensing units SA3 and SB3 and the third light transmission areas PA3 and PB3 . The third light-sensing unit SA3 and the third light-sensing unit SB3 are disposed at corresponding positions on both sides of the first carrier mechanism 110 , and the third light-transmitting area PA3 and the third light-transmitting area PB3 are disposed between the flexible display panel 140 . The corresponding positions of the edges on both sides. Therefore, the third light sensing measurement LA3 and the third light sensing measurement LB3 will generally be the same.

In order to receive the ambient light smoothly, the sizes of the first light-transmitting areas PA1 and PB1 are larger than those of the first light-sensing units SA1 and SB1 , and the sizes of the second light-transmitting areas PA2 and PB2 are larger than those of the second light-sensing units SA2 and SB2 The size of the third light-transmitting regions PA3 and PB3 is larger than that of the third light sensing units SA3 and SB3 .

The distances between the first light-transmitting areas PA1, PB1 and the second light-transmitting areas PA2, PB2 are substantially equal to the distances between the first light sensing units SA1, SB2 and the second light sensing units SA2, SB2. The distances between the second light-transmitting areas PA2, PB2 and the third light-transmitting areas PA3, PB3 are smaller than the distances between the second light sensing units SA2, SB2 and the third light sensing units SA3, SB3.

Please refer to Table 1, which exemplifies the combinations of the first light sensing measurements LA1, LB1, the second light sensing measurements LA2, LB2, and the third light sensing measurements LA3, LB3 in various modes. LA1 LB1 LA2 LB2 LA3 LB3 laptop mode L L L L H H Operating mode L L L L L L big screen mode H H H H L L share mode Ha Ha Hb Hb L L Assistant mode H H L L L L reading mode L L L L Hc HD Table I

As shown in FIG. 3A, in the notebook computer mode, neither the flexible display panel 140 nor the third bearing mechanism 130 slides upward, and the first light sensing units SA1, SB1 do not correspond to the first light transmission areas PA1, PB1, Therefore, the first light sensing measurements LA1 and LB1 are located at the low level "L". The second light-sensing units SA2, SB2 do not correspond to the second light-transmitting regions PA2, PB2, so the second light-sensing measurements LA2, LB2 are located at the low level "L". The third light-sensing units SA3 and SB3 correspond to the third light-transmitting regions PA3 and PB3 , so the third light-sensing measurements LA3 and LB3 are located at the high level “H”.

As shown in FIG. 3B, in the working mode, both the flexible display panel 140 and the third bearing mechanism 130 slide upward, but the flexible display panel 140 does not slide to the top, and the first light sensing units SA1, SB1 do not correspond to the first There are light-transmitting areas PA1, PB1, so the first light sensing measurements LA1, LB1 are located at the low level "L". The second light-sensing units SA2, SB2 do not correspond to the second light-transmitting regions PA2, PB2, so the second light-sensing measurements LA2, LB2 are located at the low level "L". The third light-sensing units SA3 and SB3 also do not correspond to the third light-transmitting regions PA3 and PB3, so the third light-sensing measurement units LA3 and LB3 are also located at the low level "L".

As shown in FIG. 3C, in the large screen mode, both the flexible display panel 140 and the third bearing mechanism 130 slide upward, the flexible display panel 140 slides to the top, and the first light sensing units SA1, SB1 correspond to the first transparent Since the light areas PA1 and PB1 are located, the first light sensing measurements LA1 and LB1 are located at the high level "H". The second light sensing units SA2, SB2 correspond to the second light transmission areas PA2, PB2, so the second light sensing measurements LA2, LB2 are located at the high level "H". The third light sensing units SA3, SB3 do not correspond to the third light transmission areas PA3, PB3, so the third light sensing measurements LA3, LB3 are located at the low level "L".

As shown in FIG. 3D, in the screen sharing mode, both the flexible display panel 140 and the third bearing mechanism 130 slide upward, the flexible display panel 140 slides to the top, and the first light sensing units SA1, SB1 correspond to the first transparent The light areas PA1, PB1, so the first light sensing measurement LA1, LB1 are located at the high level "Ha". The second light-sensing units SA2 and SB2 correspond to the second light-transmitting regions PA2 and PB2 , so the second light-sensing measurements LA2 and LB2 are located at the high level "Hb". However, due to the different orientations of the first photo-sensing units SA1, SB1 and the second photo-sensing units SA2, SB2, the first photo-sensing measurements LA1, LB1 are located at different levels of high levels "Ha", "Hb". The third light sensing units SA3, SB3 do not correspond to the third light transmission areas PA3, PB3, so the third light sensing measurements LA3, LB3 are located at the low level "L".

As shown in FIG. 3E, in the smart assistant mode, both the flexible display panel 140 and the first carrying mechanism 110 are folded backwards, and the first light sensing units SA1, SB1 correspond to the first light transmission areas PA1, PB1, so the first A light sensing measurement LA1, LB1 is at the high level "H". The second light sensing units SA2, SB2 correspond to the second light transmission areas PA2, PB2, but are shielded from ambient light by the first bearing mechanism 110, so the second light sensing units LA2, LB2 are located at the low level "L". The third light sensing units SA3, SB3 do not correspond to the third light transmission areas PA3, PB3, so the third light sensing measurements LA3, LB3 are located at the low level "L".

As shown in FIG. 3A , in the reading mode, neither the flexible display panel 140 nor the third bearing mechanism 130 slides upward, and the first light sensing units SA1 and SB1 do not correspond to the first light transmission areas PA1 and PB1 . A light sensing measurement LA1, LB1 is located at the low level "L". The second light-sensing units SA2, SB2 do not correspond to the second light-transmitting regions PA2, PB2, so the second light-sensing measurements LA2, LB2 are located at the low level "L". The third light sensing unit SA3 corresponds to the third light transmission area PA3, so the third light sensing measurement LA3 is located at a high level "Hc". The third light-sensing unit SB3 corresponds to the third light-transmitting area PB3, so the third light-sensing measurement LB3 is located at a high level "Hd". Since the distances between the third light sensing measurement LA3 and the third light sensing unit SB3 from the desktop are different, the third light sensing measurement LA3 and LB3 are located at different levels of high levels "Hc" and "Hd".

In the above example, the relative positions of the first transparent areas PA1, PB1, the second transparent areas PA2, PB2 and the third transparent areas PA3, PB3 remain unchanged, the first light sensing units SA1, SB1 and the second The relative positions of the photo-sensing units SA2 and SB2 remain unchanged, but the relative positions of the second photo-sensing units SA2 and SB2 and the third photo-sensing units SA3 and SB3 follow the sliding movement of the third carrying mechanism 130 or the flexible display panel 140 . and change.

As shown in Table 1 above, the folded state of the foldable electronic device 100 can be analyzed according to the combination of the first light-sensing measurements LA1, LB1, the second light-sensing measurements LA2, LB2, and the third light-sensing measurements LA3, LB3.

Please refer to FIG. 4 , which shows a block diagram of a foldable electronic device 100 according to an embodiment. The foldable electronic device 100 includes a first carrying mechanism 110 , a second carrying mechanism 120 , a third carrying mechanism 130 , a flexible display panel 140 , a processing unit 150 , a driving unit 160 , an analog-to-digital unit 170 , a display control unit 180 , and a basic light Sensing unit SA0, first light sensing unit SA1, first light sensing unit SB1, second light sensing unit SA2, second light sensing unit SB2, third light sensing unit SA3, and third light sensing Unit SB3. The first bearing mechanism 110 , the second bearing mechanism 120 and the third bearing mechanism 130 are, for example, composed of a support plate, a slide rail, and a slider. The processing unit 150 , the analog-to-digital unit 170 , and the display control unit 180 are, for example, circuits, chips, circuit boards, or firmware. The driving unit 160 is, for example, a motor or an elastic element. Basic light sensing unit SA0, first light sensing unit SA1, first light sensing unit SB1, second light sensing unit SA2, second light sensing unit SB2, third light sensing unit SA3, and third light sensing unit The sensing unit SB3 is, for example, a photosensitive chip or a photoelectric element. In this embodiment, the first light sensing unit SA1, the first light sensing unit SB1, the second light sensing unit SA2, the second light sensing unit SB2, the third light sensing unit SA3 and the third light sensing unit The combination of the first light sensing measurement LA1, the first light sensing measurement LB1, the second light sensing measurement LA2, the second light sensing measurement LB2, the third light sensing measurement LA3, and the third light sensing measurement LB3 obtained by the measuring unit SB3 can be It is used to analyze the folded state of the foldable electronic device 100 and perform corresponding display control accordingly. The operation of the above elements is described in detail with a flow chart below.

Please refer to FIG. 5 , which is a flowchart illustrating a control method of the foldable electronic device 100 according to an embodiment. In step S110 , the driving unit 160 drives the second supporting mechanism 120 to rotate relative to the first supporting mechanism 110 , drives the third supporting mechanism 130 to slide relative to the second supporting mechanism 120 or drives the flexible display panel 140 to slide according to the predetermined folding state. Not all of these actions will be executed, depending on the current folded state and the reserved folded state to determine the action to be executed. In one embodiment, the driving comparison table TB2 pre-records the actions to be performed for the transition between various folding states. The driving unit 160 may drive according to the driving comparison table TB2.

Next, in step S120, the first light sensing unit SA1, SB1, the second light sensing unit SA2, SB2, the third light sensing unit SA3, SB3 according to the first light sensing unit SA1, SB1, the second light The corresponding relationship between the sensing units SA2, SB2, the third light sensing units SA3, SB3 and the first light transmission areas PA1, PB1, the second light transmission areas PA2, PB2, the third light transmission areas PA3, PB3, the sensing A light-sensing measurement LA1, LB1, a second light-sensing measurement LA2, LB2, and a third light-sensing measurement LA3, LB3. The first light-sensing measurements LA1 , LB1 , the second light-sensing measurements LA2 , LB2 , and the third light-sensing measurements LA3 , LB3 are input to the processing unit 150 after being converted by the analog-to-digital unit 170 .

Then, in step S130, the processing unit 150 determines the folding state of the foldable electronic device 100 according to the combination of the first light sensing measurements LA1, LB1, the second light sensing measurements LA2, LB2, and the third light sensing measurements LA3, LB3. In this step, the processing unit 150 determines the folded state of the foldable electronic device 100 according to the state comparison table TB3. The state comparison table TB3 is, for example, the first table above.

In addition, the processing unit 150 determines the high level or the low level according to a threshold value. In one embodiment, the basic light sensing unit SA0 can be disposed on the top of the foldable electronic device so that it can receive ambient light at any time. The basic light sensing unit SA0 can obtain a basic light sensing measurement LA0. The processing unit 150 may query the threshold value comparison table according to the basic light sensing measurement LA0 to adjust the threshold value. For example, when the foldable electronic device 100 is in a darker environment, the threshold value can be lowered to avoid failure to correctly determine the high level. When the foldable electronic device 100 is in a brighter environment, the threshold value can be increased to avoid failure to correctly determine the low level.

Next, in step S140, the processing unit 150 determines whether the foldable electronic device 100 has completed the predetermined folded state. If the predetermined folding state has not been completed, go back to step S110 to continue driving; if the predetermined folding state has been completed, then proceed to step S150.

In step S150, the display control unit 180 controls the display content of the flexible display panel 140 according to the folded state.

According to the above-mentioned embodiment, the foldable electronic device 100 can transmit through the first light sensing unit SA1 , the first light sensing unit SB1 , the second light sensing unit SA2 , the second light sensing unit SB2 , and the third light sensing unit The first photosensitive measurement LA1, the first photosensitive measurement LB1, the second photosensitive measurement LA2, the second photosensitive measurement LB2, the third photosensitive measurement LA3, the third photosensitive measurement obtained by SA3 and the third photosensitive unit SB3 The combination of the sense measurements LB3 is used to analyze the folded state of the foldable electronic device 100 and perform corresponding display control accordingly. In this way, users can be provided with more diverse application scopes.

To sum up, although the present disclosure has been disclosed above with embodiments, it is not intended to limit the present disclosure. Those with ordinary knowledge in the technical field to which the present disclosure pertains can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure should be determined by the scope of the appended patent application.

100: Foldable Electronic Device 110: The first carrying mechanism 120: The second carrying mechanism 130: The third carrier 140: flexible display panel 150: Processing unit 160: Drive unit 170: Analog to digital unit 180: Display Control Unit A1, A2, B1, B2, C1, C2, D1, D2, D3, E1, F1, F2: Display area LA0: Basic light sensing measurement LA1, LB1: first light sensing measurement LA2, LB2: Second light sensing measurement LA3, LB3: Third light sensing measurement LE: Active Light Emitting Element PA1, PB1: The first light transmission area PA2, PB2: Second light transmission area PA3, PB3: The third light transmission area P0: non-transparent area SA0: Basic light sensing unit SA1, SB1: The first light sensing unit SA2, SB2: Second light sensing unit SA3, SB3: The third light sensing unit SB: flexible transparent substrate S110, S120, S130, S140, S150: Steps TB1: Threshold Value Comparison Table TB2: Driver comparison table TB3: Status comparison table

FIGS. 1A-1F are schematic diagrams illustrating various folded states of a foldable electronic device according to an embodiment. FIG. 2 illustrates a flexible display panel according to an embodiment. FIGS. 3A to 3F are schematic side views of the foldable electronic device in various folded states according to an embodiment. FIG. 4 shows a block diagram of a foldable electronic device according to an embodiment. FIG. 5 is a flowchart illustrating a control method of a foldable electronic device according to an embodiment.

100: Foldable Electronic Device

110: The first carrying mechanism

120: The second carrying mechanism

130: The third carrier

140: flexible display panel

PA1, PB1: The first light transmission area

PA2,PB2: The second light transmission area

PA3,PB3: The third light transmission area

SA1, SB1: The first light sensing unit

SA2, SB2: The second light sensing unit

SA3, SB3: The third light sensing unit

Claims (12)

A foldable electronic device, comprising: a first bearing mechanism; a second bearing mechanism rotatably connected to the first bearing mechanism to be folded relative to the first bearing mechanism; a third bearing mechanism, slidable connected to the second carrying mechanism to extend out of the second carrying mechanism; a flexible display panel slidably arranged on the first carrying mechanism, the second carrying mechanism and the third carrying mechanism, the The flexible display panel has a first light-transmitting area, a second light-transmitting area, and a third light-transmitting area; a first light-sensing unit is disposed on the third carrying mechanism, and the first light-sensing unit is based on The corresponding relationship between the first light-sensing unit and the first light-transmitting area senses a first light-sensing measurement; a second light-sensing unit is disposed on the third carrying mechanism, and the second light-sensing unit A second light sensing measurement is sensed according to the corresponding relationship between the second light sensing unit and the second light-transmitting area; a third light sensing unit is disposed on the first carrying mechanism, and the third light sensing The unit senses a third light-sensing measurement according to the corresponding relationship between the third light-sensing unit and the third light-transmitting area; and a processing unit is based on the first light-sensing measurement, the second light-sensing measurement and the The combination of the third light sensing measurement determines a folded state of the foldable electronic device. The foldable electronic device as claimed in claim 1, wherein the first light-transmitting area, the second light-transmitting area and the third light-transmitting area are disposed on the edge of the flexible display panel. The foldable electronic device of claim 1, wherein the distance between the first light-transmitting area and the second light-transmitting area is substantially equal to the distance between the first light sensing unit and the second light sensing unit. The foldable electronic device of claim 1, wherein a distance between the second light-transmitting area and the third light-transmitting area is smaller than a distance between the second light sensing unit and the third light sensing unit. The foldable electronic device according to claim 1, wherein the size of the first light-transmitting area is larger than the size of the first light-sensing unit, and the size of the second light-transmitting area is larger than the size of the second light-sensing unit , the size of the third light-transmitting area is larger than the size of the third light-sensing unit. The foldable electronic device as claimed in claim 1, wherein relative positions of the first light-transmitting area, the second light-transmitting area, and the third light-transmitting area remain unchanged, and the first light sensing unit and the first light-transmitting area remain unchanged. The relative positions of the two photo-sensing units remain unchanged, and the relative positions of the second photo-sensing unit and the third photo-sensing unit change with the sliding of the third carrying mechanism or the flexible display panel. A control method of a foldable electronic device, the foldable electronic device comprises a first carrying mechanism, a second carrying mechanism, a third carrying mechanism, a flexible display panel, a first light sensing unit, a second light A sensing unit and a third light sensing unit, the second carrying mechanism is rotatably connected to the first carrying mechanism, the third carrying mechanism is slidably connected to the second carrying mechanism, and the flexible display panel is slidable The flexible display panel is arranged on the first bearing mechanism, the second bearing mechanism and the third bearing mechanism, and the flexible display panel has a first transparent area, a second transparent area and a third transparent area. The first light sensing unit and the second light sensing unit are arranged on the third bearing mechanism, the third light sensing unit is arranged on the first bearing mechanism, and the control method includes: driving the second bearing mechanism Rotate relative to the first carrying mechanism, drive the third carrying mechanism to slide relative to the second carrying mechanism, or drive the flexible display panel to slide; the first light sensing unit, the second light sensing unit, the third light sensing unit The measuring unit is based on the correspondence between the first light sensing unit, the second light sensing unit, the third light sensing unit and the first light-transmitting area, the second light-transmitting area, and the third light-transmitting area , sense a first light sensing measurement, a second light sensing measurement, and a third light sensing measurement; according to the combination of the first light sensing measurement, the second light sensing measurement and the third light sensing measurement, determine the a folded state of the foldable electronic device; and controlling one of the flexible display panels to display content according to the folded state. The control method of a foldable electronic device according to claim 7, wherein the first light-transmitting area, the second light-transmitting area, and the third light-transmitting area are disposed on the edge of the flexible display panel. The control method of a foldable electronic device according to claim 7, wherein the distance between the first light-transmitting area and the second light-transmitting area is substantially equal to the distance between the first light sensing unit and the second light sensing unit distance. The control method of a foldable electronic device according to claim 7, wherein the distance between the second light-transmitting area and the third light-transmitting area is smaller than the distance between the second light sensing unit and the third light sensing unit. The control method for a foldable electronic device according to claim 7, wherein the size of the first light-transmitting area is larger than that of the first light sensing unit, and the size of the second light-transmitting area is larger than that of the second light sensing unit The size of the unit, the size of the third light-transmitting area is larger than the size of the third light sensing unit. The control method of a foldable electronic device according to claim 7, wherein the relative positions of the first light-transmitting area, the second light-transmitting area, and the third light-transmitting area remain unchanged, and the first light sensing unit and the relative position of the second light sensing unit remains unchanged, and the relative position of the second light sensing unit and the third light sensing unit changes with the sliding of the third carrying mechanism or the flexible display panel.

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