Electronic device

Abstract

The invention provides an electronic device. The electronic device comprises a display and an adjustable light control panel which is arranged on the display and comprises a plurality of light control units. The adjustable light control panel comprises a first substrate, a second substrate and a display medium clamped between the first substrate and the second substrate. In the first display mode, the light control unit forms a plurality of first light-transmitting areas and a plurality of non-light-transmitting areas which are sequentially and alternately arranged, and in the second display mode, the light control unit forms a second light-transmitting area. The ratio of the area of the first light-transmitting region to the total area of the light control unit is different from the ratio of the area of the second light-transmitting region to the total area of the light control unit.

Description

Technical Field

[0001] The invention relates to an electronic device, in particular to an electronic device with an anti-peeping function or a mode switching function. Background Art

[0002] With the advancement of technology, the protection of privacy information is becoming more and more important. Therefore, more and more displays with different uses have the need for anti-peeping, such as automated teller machines (ATMs), mobile phones, and notebook computers. The existing anti-peeping method is to stick a light control film (LCF) on the display to filter out light at a large angle. However, the anti-peeping angle of the light control film is fixed after production, and it is impossible to adjust the anti-peeping angle or switch the display mode in real time according to different needs, thus limiting the use of the display. Summary of the invention

[0003] One of the purposes of the present invention is to provide an electronic device for adjusting the anti-peeping angle or switching the display mode in real time.

[0004] The present invention provides an electronic device capable of switching between a first display mode and a second display mode, comprising a display and an adjustable light control panel. The adjustable light control panel is arranged on the display and comprises a plurality of light control units, and the adjustable light control panel comprises a first substrate, a second substrate and a display medium. The second substrate is arranged relative to the first substrate, and the display medium is sandwiched between the first substrate and the second substrate, wherein in the first display mode, the light control unit forms a plurality of first light-transmitting areas and a plurality of non-light-transmitting areas arranged alternately in sequence through the display medium, and in the second display mode, the light control unit forms a second light-transmitting area through the display medium. The ratio of the area of ​​the first light-transmitting area to the total area of ​​the light control unit is different from the ratio of the area of ​​the second light-transmitting area to the total area of ​​the light control unit.

[0005] In the electronic device of the present invention, the electronic device can be in a first display mode, so as to switch the light-transmitting state and the light-opaque state of different light control units through the adjustable light control panel, so as to form stripes in which light-transmitting strips and light-opaque strips are alternately arranged. When the image of the display passes through the light-transmitting strips, it can be displayed in a specific direction, so that only the user at the specific position can view the image, while others outside the specific position can hardly view the image, thereby achieving an anti-peeping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 FIG. 4 is a block diagram of an electronic device according to a first embodiment of the present invention.

[0007] Figure 2FIG. 1 is a schematic top view of a display according to an embodiment of the present invention.

[0008] Figure 3 The electronic device according to the first embodiment of the present invention is shown along Figure 1 The cross-sectional structure along the cross-sectional line AA' is a schematic diagram in the first display mode.

[0009] Figure 4 FIG. 1 is a schematic top view of the adjustable light control panel in the second display mode according to the first embodiment of the present invention.

[0010] Figure 5 FIG. 1 is a schematic diagram showing a circuit structure of an electronic device according to a variation of the first embodiment of the present invention.

[0011] Figure 6 FIG. 4 is a cross-sectional view of an electronic device according to a second embodiment of the present invention.

[0012] Figure 7 FIG. 1 is a schematic diagram showing an operation method of an electronic device in a first display mode according to a third embodiment of the present invention.

[0013] Figure 8 FIG. 4 is a schematic diagram showing an operation method of an electronic device in a first display mode according to a fourth embodiment of the present invention.

[0014] Fig. 9 FIG. 1 is a cross-sectional diagram of an electronic device in a first display mode at one frame time according to a fifth embodiment of the present invention.

[0015] Fig.10 FIG. 1 is a cross-sectional diagram of an electronic device in a first display mode at one frame time according to a sixth embodiment of the present invention.

[0016] Fig.11A and Fig. 11B FIG. 1 is a schematic diagram of an operation method of an electronic device in a first display mode according to a seventh embodiment of the present invention.

[0017] Fig.12 FIG. 8 is a schematic diagram of an operating method of an electronic device in a first display mode according to an eighth embodiment of the present invention.

[0018] Fig.13 FIG. 1 is a cross-sectional diagram of an electronic device in a first display mode at one frame time according to a ninth embodiment of the present invention.

[0019] Explanation of reference numerals: 1, 1a, 2-electronic device; 1S-display surface; 12-display; 12a-shading pattern; 14-adjustable light control panel; 14a-first adjustable light control panel; 14b-second adjustable light control panel; 16, 16a, 16b, 161, 162, 163, 164, 165, 166, 167, 168-light control unit; 18-adhesive layer; 19-quarter wave plate; 20-input unit; 22-timing controller; 24-signal processor; 26-gate drive circuit; 28-data drive circuit; 28a-first data drive circuit; 28b-second data drive circuit; CD-row direction; D1-direction; DM-display medium; F-frame time; F1-first frame time; F2-second frame time; F3-third frame time; F4- Fourth frame time; F5-fifth frame time; F6-sixth frame time; F7-seventh frame time; F8-eighth frame time; G1-distance; L1, L2-light; NT, NTa, NTb-non-light-transmitting area; POL1-first polarizer; POL2-second polarizer; PT1, PT2-pitch; PX1-pixel; PX2, PX2a, PX2b-group; R, G, B-sub-pixel; R1-first display area; R2-dark area; R3-second display area; R4-first light adjustment area; R5-second light adjustment area; RD-column direction; S1-light-emitting surface; Sub1-first substrate; Sub2-second substrate; Sub3-third substrate; T1, T1b, T1a-first light-transmitting area; T2-second light-transmitting area; TD-top-view direction; W1, W2, W3-width; θ-angle. DETAILED DESCRIPTION

[0020] The present invention is described in detail in conjunction with specific embodiments and drawings. In order to make the content of the present invention clearer and easier to understand, the drawings of the present invention may be simplified schematic diagrams, and the elements therein may not be drawn to scale. Moreover, the number and size of each element in the drawings are only for illustration and are not intended to limit the scope of the present invention.

[0021] Certain words are used throughout the specification and the appended claims to refer to specific components. It should be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components with different names, and the present invention is not intended to distinguish between components with the same functions but different names.

[0022] In the specification and claims of the present invention, the words "including" and "comprising" are open-ended words and should be interpreted as meaning "including but not limited to..."

[0023] The ordinal numbers used in the specification and claims of the present invention, such as "first", "second", etc., to modify the elements of the claims, do not themselves mean or represent any previous ordinal numbers of the claimed elements, nor do they represent the order of one claimed element and another claimed element, or the order in the manufacturing method. The use of the ordinal numbers is only used to clearly distinguish a claimed element with a certain name from another claimed element with the same name.

[0024] The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only used to refer to the directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention.

[0025] In addition, when an element or a film layer is referred to as being "on" another element or film layer, it should be understood that the element or film layer is directly on the other element or film layer, or there is an intervening element or film layer between the two (indirect situation). Conversely, when an element or a film layer is referred to as being "directly" "on" another element or film layer, it should be understood that there is no intervening element or film layer between the two.

[0026] The term "electrically connected" includes any direct and indirect means of electrical connection. Two components electrically connected may be in direct contact to transmit electrical signals without any other components between them. Alternatively, two components electrically connected may be bridged by an intermediary component between them to transmit electrical signals. "Electrically connected" may also be referred to as "coupled".

[0027] In the present invention, the terms “about”, “substantially” or “approximately” generally represent values ​​within 20%, 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range.

[0028] It should be understood that the following embodiments can replace, reorganize, or mix features in multiple different embodiments to complete other embodiments without departing from the spirit of the present invention. The features between the embodiments can be mixed and matched as long as they do not violate the spirit of the invention or conflict with each other.

[0029] In the present invention, the length, thickness, width, height, distance and area can be measured by an optical microscope (OM), an electron microscope (such as a scanning electron microscope (SEM)) or other methods, but are not limited thereto.

[0030] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as commonly understood by those skilled in the art to which the present invention belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present invention, and should not be interpreted in an idealized or overly formal manner unless specifically defined in the embodiments of the present invention.

[0031] The electronic device of the present invention may include, for example, a display device, a sensing device, an antenna device, a touch device, a splicing device or other suitable electronic devices, but is not limited thereto. The electronic device of the present invention may be, for example, a foldable, rollable, bendable or flexible electronic device. The display device of the present invention may be any type of display device, such as a self-luminous display device or a non-self-luminous display device. The self-luminous display device may include a light-emitting diode, a light conversion layer or other suitable materials, or a combination thereof, but is not limited thereto. The light-emitting diode may include, for example, an organic light emitting diode (OLED), a sub-millimeter light-emitting diode (mini LED), a micro light-emitting diode (micro LED) or a quantum dot light-emitting diode (quantum dotLED, which may include QLED, QDLED), but is not limited thereto. The light conversion layer may include a wavelength conversion material and / or a filter material, and the light conversion layer may include, for example, fluorescence, phosphorescence, quantum dots (QD), other suitable materials or a combination thereof, but is not limited thereto. The non-self-luminous display device may include a liquid crystal display device, but is not limited thereto. The sensing device may, for example, be a sensing device for detecting capacitance changes, light, heat energy or ultrasound, but is not limited thereto. The sensing device may, for example, include a biosensor, a touch sensor, a fingerprint sensor, other suitable sensors or a combination of the above types of sensors. The antenna device may, for example, be a liquid crystal antenna or other types of antenna types, but is not limited thereto. The splicing device may, for example, include a spliced ​​display device or a spliced ​​antenna device, but is not limited thereto. In addition, the appearance of the electronic device may, for example, be a rectangle, a circle, a polygon, a shape with curved edges, a curved surface (curved) or other suitable shapes. The electronic device may have peripheral systems such as a drive system, a control system, a light source system, a shelf system, etc. The electronic device may include an electronic unit, wherein the electronic unit may include passive components and active components, such as capacitors, resistors, inductors, diodes, transistors, sensors, etc. It should be noted that the electronic device of the present invention may be various combinations of the above devices, but is not limited thereto.

[0032] Figure 1 FIG. 1 is a block diagram of an electronic device according to a first embodiment of the present invention, wherein Figure 1 The top view structure of the adjustable light control panel is further shown. Figure 2 FIG. 1 is a schematic top view of a display according to an embodiment of the present invention. Figure 3 The electronic device according to the first embodiment of the present invention is shown along Figure 1 The cross-sectional structure of the cross-sectional line AA' is in the first display mode, and Figure 4 FIG. 2 is a top view of the adjustable light control panel of the first embodiment of the present invention in the second display mode. Figures 1 to 4 As shown, the electronic device 1 can switch between the first display mode and the second display mode, and may include a display 12 and an adjustable light control panel 14, wherein the adjustable light control panel 14 may be disposed on the display 12, and may include a plurality of light control units 16. The adjustable light control panel 14 may include a first substrate Sub1, a second substrate Sub2, and a display medium DM, wherein the display medium DM is sandwiched between the first substrate Sub1 and the second substrate Sub2. For example, the material of the substrate Sub1 may include glass, quartz, sapphire, ceramic, polycarbonate (PC), polyimide (PI), polyethylene terephthalate (PET), other suitable substrate materials or a combination of the foregoing. The display medium DM may, for example, include a liquid crystal material or other suitable materials. When the electronic device 1 is in the first display mode, the light control unit 16 may form a plurality of first light-transmitting areas T1 and a plurality of non-light-transmitting areas NT arranged alternately in sequence through the display medium DM, and when the electronic device 1 is in the second display mode, the light control unit 16 may form a second light-transmitting area T2 through the display medium DM. Furthermore, the ratio of the area of ​​the first light-transmitting region T1 to the total area of ​​the light control unit 16 is different from the ratio of the area of ​​the second light-transmitting region T2 to the total area of ​​the light control unit 16 .

[0033] It should be noted that in the first display mode, the light control unit 16 forms a first light-transmitting area T1 and a non-light-transmitting area NT that are alternately arranged, and stripes in which light-transmitting strips and non-light-transmitting strips are alternately arranged can be formed. After the image of the display 12 passes through the first light-transmitting area T1, it can be displayed in a specific direction, so that only users at a specific position can view the image, and others outside the specific position cannot view the image, thereby achieving an anti-peeping effect. In the second display mode, the light control unit 16 can form a second light-transmitting area T2, and does not form a non-light-transmitting area NT. Therefore, the light generated by the display 12 can have a larger light output angle after passing through the second light-transmitting area T2, thereby improving the viewing angle range of the image. It can be seen from this that the electronic device 1 can perform the first display mode when anti-peeping is required, and perform the second display mode when anti-peeping is not required, so as to display an image with a higher resolution, so that the display mode can be switched in real time according to different needs. Furthermore, by switching the light control unit 16, the adjustable light control panel 14 can present first light-transmitting areas T1 and non-light-transmitting areas NT of different numbers and arrangements. Therefore, the image of the display 12 can have different anti-peeping angles or display different images at different angles after passing through the adjustable light control panel 14, thereby achieving the purpose of adjusting the anti-peeping angle, changing the viewing angle range, or switching the display mode in real time according to different needs.

[0034] The electronic device 1 of this embodiment will be further described in detail as follows. Figure 2 As shown, the display 12 may include a plurality of pixels PX1. The pixels PX1 may be arranged in an array or other suitable manner. Each pixel PX1 may include a sub-pixel R, a sub-pixel G, and a sub-pixel B, each generating light of a different color, such as red light, green light, and blue light, or a combination of other colors. Figure 2In the embodiment of the present invention, the display 12 may be a self-luminous display, such as a micro-light emitting diode display, an organic light emitting diode display or other suitable display. In other words, the sub-pixel R, sub-pixel G and sub-pixel B of the same pixel PX1 may include a light-emitting element capable of generating light. The sub-pixel R, sub-pixel G and sub-pixel B may, for example, be composed of light-emitting elements of different colors or include light-emitting elements of different colors and color filters of different colors. The light-emitting element may, for example, include a red light-emitting element, a green light-emitting element and a blue light-emitting element. In some embodiments, the sub-pixel R, sub-pixel G and sub-pixel B may also include a light-emitting element and a light conversion layer, respectively. In this case, the light-emitting element may generate light of the same color, and the light conversion layers of the sub-pixel R, sub-pixel G and sub-pixel B may generate light of different colors, but is not limited thereto. For example, the light-emitting element may include a blue light-emitting element, and the light conversion layer may include a quantum dot layer. In some embodiments, the light conversion layers of the sub-pixels R, sub-pixels G and sub-pixels B may include a quantum dot layer and a color filter, which are sequentially arranged on the light-emitting element. Alternatively, the light emitting element may include a blue light emitting element and a yellow phosphor, and the light conversion layer may include a color filter, but the invention is not limited thereto. In some embodiments, the display 12 may be a non-self-luminous display, such as a liquid crystal display or other suitable display.

[0035] like Figure 2 As shown, the pixel PX1 may have a pitch PT1, for example, greater than or equal to 60 micrometers (μm) and less than or equal to 260 micrometers (that is, 60μm≤pitch PT1≤260μm). The pitch PT1 may be, for example, 105 micrometers. The pitch PT1 may, for example, refer to the distance between the left side (or right side) of a sub-pixel R (or sub-pixel G or sub-pixel B) generating a color in a pixel PX1 and the left side (or right side) of a sub-pixel R (or sub-pixel G or sub-pixel B) generating the same color in an adjacent pixel PX1.

[0036] It should be noted that in the present invention, Figure 3As shown, the light-emitting surface S1 of sub-pixel R, sub-pixel G and sub-pixel B can be defined as the light-emitting surface of the element that generates light of different colors. For example, when the light generated by the light-emitting element is used as the light of sub-pixel R (or sub-pixel G or sub-pixel B), the light-emitting surface of the light-emitting element can be the light-emitting surface S1 of sub-pixel R (or sub-pixel G or sub-pixel B), or when the light generated by the light conversion layer or the light emitted from the color filter is used as the light of sub-pixel R (or sub-pixel G or sub-pixel B), the light-emitting surface of the light conversion layer or the color filter can be used as the light-emitting surface S1 of sub-pixel R (or sub-pixel G or sub-pixel B), but it is not limited thereto. In some embodiments, the light conversion layer may include phosphor material, fluorescent material, quantum dot particles, color filter material or other suitable materials.

[0037] like Figure 3 As shown, when the electronic device 1 is in the first display mode, a plurality of pixels PX1 can be turned on to generate light, thereby forming or including a plurality of first display areas R1, wherein the first display areas R1 can overlap with the corresponding first light-transmitting areas T1, and the remaining pixels PX1 can form dark areas R2. Figure 3 A first display area R1 is displayed, but the present invention is not limited thereto. The dark area R2 may be, for example, an area where the pixel PX1 is in a closed state, but is not limited thereto. Figure 3 In the embodiment of the present invention, one or more pixels PX1 may form a first display region R1, but the present invention is not limited thereto. The width W1 (or Figure 2 The pitch PT1 of the pixel PX1 shown can be less than or equal to the width W2 of the first light-transmitting area T1 in the column direction RD, so that the user can clearly view the image displayed by the first display area R1. For example, the width W1 of the first display area R1 in the column direction RD of the pixel PX1 can be approximately 60% of the width W2 of the first light-transmitting area T1 in the column direction RD, so as to reduce the color cast of the image viewed by the user. For example, when the pitch PT1 of the pixel PX1 is 105 microns, the width W2 can be 175 microns. Figure 3 In some embodiments, the first display area R1 can completely overlap the first light-transmitting area T1 in the top-view direction TD, so that the user can view the image presented by the first display area R1 along the top-view direction TD, but the present invention is not limited thereto. In some embodiments, the eye position of the user can be detected by an eye tracking sensor, and the position of the first display area R1 can be moved or adjusted along with the eye position. In some embodiments, according to other requirements, the width W1 (or Figure 2The pitch PT1 of the pixel PX1 shown may also be greater than the width W2 of the first light-transmitting region T1 in the column direction RD. In the present invention, the top-view direction TD may be, for example, parallel to the normal direction of the first substrate Sub1.

[0038] exist Figure 2 and Figure 3 In the embodiment of the present invention, the display 12 may further include a shading pattern 12a, which is disposed between two adjacent sub-pixels of the sub-pixel R, the sub-pixel G, and the sub-pixel B, wherein the shading pattern 12a may be used to avoid or reduce light mixing generated by the light of the sub-pixel R, the sub-pixel G, and the sub-pixel B before being emitted from the light-emitting surface S1, thereby improving the color saturation of the sub-pixel R, the sub-pixel G, and the sub-pixel B.

[0039] like Figure 3 As shown, the display 12 may optionally include a third substrate Sub3, which is disposed between the pixel PX1 and the adjustable light control panel 14, for example, to protect the pixel PX1. The electronic device 1 may also include an adhesive layer 18, which is used to attach the adjustable light control panel 14 to the upper surface of the display 12. The material of the third substrate Sub3 may be similar to or the same as that of the first substrate Sub1, so it is not described in detail here. The adhesive layer 18 may include resin, optically clear adhesive (OCA), pressure sensitive adhesive (PSA) or other suitable adhesive materials.

[0040] In addition, if Figure 1 As shown, when viewed from the top direction TD of the electronic device 1, the light control unit 16 may be in the shape of a long strip and extend in a direction D1. The angle θ between the direction D1 in which the light control unit 16 extends and the column direction CD of the pixel PX1 may be, for example, greater than or equal to 5 degrees and less than or equal to 30 degrees (that is, 5°≤angle θ≤30°). By designing the angle θ, the generation of moiré patterns between the strip-shaped first light-transmitting area T1 formed by the light control unit 16 and the image displayed by the display 12 can be reduced or avoided.

[0041] like Figure 3 As shown, each light control unit 16 may include a portion of the display medium DM, and by controlling the state of the portion of the display medium DM, the light control unit 16 may be light-transmissive or light-impermeable, thereby forming a display structure as shown in FIG. Figure 1 The first light-transmitting area T1 and the non-light-transmitting area NT shown in FIG. Figure 4The second light-transmitting area T2 shown. For example, the adjustable light control panel 14 may include a twisted nematic (TN), vertical alignment (VA) liquid crystal panel, in-plane switching (IPS) or other suitable types of liquid crystal panels. Taking the TN liquid crystal panel as an example, each light control unit 16 may also include a pixel electrode and a common electrode, which are respectively arranged on the upper and lower sides of the display medium DM to control the state of the portion of the display medium DM corresponding to the light control unit 16, but is not limited thereto. The pixel electrode may be in the shape of a long strip, so that the light control unit 16 may also be in the shape of a long strip, so that the light-transmitting state and the light-impermeable state of each light control unit 16 may form a strip-shaped light-transmitting area and a light-impermeable area, respectively. The display medium DM may, for example, include liquid crystal molecules or other suitable display media. The type of liquid crystal molecules may be adjusted according to the type of the adjustable light control panel 14. In some embodiments, the relative relationship between the pixel electrode, the common electrode and the display medium DM may also be adjusted according to the type of the adjustable light control panel 14, for example, the pixel electrode and the common electrode may also be located on the same side of the display medium DM.

[0042] like Figure 1 and Figure 3 As shown, the light control unit 16 can be divided into a plurality of groups PX2 arranged in sequence, so that when the electronic device 1 is in the first display mode, each group PX2 can form a corresponding first light-transmitting area T1 and a corresponding one or two non-light-transmitting areas at the same screen time, thereby forming an alternating arrangement of the first light-transmitting area T1 and the non-light-transmitting area NT. By matching the first display area R1 and the dark area R2 of the display 12, the electronic device 1 can have an anti-peeping function in the first display mode. Each group PX2 can have a pitch PT2, and the pitch PT2 can be the total width of the first light-transmitting area T1 and the non-light-transmitting area NT formed by the same group PX2, but is not limited thereto.

[0043] like Figure 3 and Figure 4 As shown, when the electronic device 1 is in the second display mode, all light control units 16 of each group PX2 can be turned on to form or include a second light-transmitting area T2. In this case, all pixels PX1 of the display 12 can be turned on so that the resolution of the displayed image is greater than the image displayed in the first display mode. It should be noted that the brightness of the maximum grayscale value of each pixel PX1 in the second display mode can, for example, fall within the range of 12% to 60% of the brightness of the maximum grayscale value of each pixel PX1 in the first display mode, thereby reducing the difference in visual effects (visible brightness) between the first display mode and the second display mode, reducing the discomfort of mode switching, and improving user experience.

[0044] like Figure 1As shown, the ratio of the area of ​​the first light-transmitting region T1 to the total area of ​​the first light-transmitting region T1 and the non-light-transmitting region NT (or Figure 1 The ratio of the width W3 of the first light-transmitting area T1 in the arrangement direction of the light control unit 16 to the pitch PT2 of the group PX2 can be greater than or equal to 14% and less than or equal to 50% (that is, 14%≤the ratio≤50%), so that the light of one first display area R1 can be emitted from a corresponding first light-transmitting area T1, and is not easy to be emitted from other first light-transmitting areas T1. Figure 1 In the embodiment of the present invention, each group PX2 may include four adjacent light control units 16, one of which may form a first light-transmitting area T1, and the remaining three light control units 16 may form a non-light-transmitting area NT, but is not limited thereto. In this case, the ratio of the area of ​​the first light-transmitting area T1 to the total area of ​​one first light-transmitting area T1 and one non-light-transmitting area NT may be greater than or equal to 14% and less than or equal to 35%. Figure 1 The ratio of may be, for example, 25%, but is not limited thereto. In some embodiments, each group PX2 may include two, three, or more than five light control units 16. Alternatively, in the case of meeting the above ratio range, at least two light control units 16 in the same group PX2 may form a first light-transmitting area T1, while the other light control units 16 form a non-light-transmitting area NT, but is not limited thereto.

[0045] In some embodiments, the angle between the line connecting the center of the first display area R1 and the center of the first light-transmitting area T1 formed by a group PX2 and the line connecting the center of the first display area R1 and the center of the light control unit 16 in the same group PX2 farthest from the first light-transmitting area T1 may be, for example, greater than or equal to 30 degrees and less than or equal to 45 degrees (that is, 30°≤the angle≤45°). In this case, the light generated by the pixel PX1 corresponding to a first light-transmitting area T1 may be emitted from the display surface 1S of the electronic device 1 at an angle greater than a certain value when traveling to another first light-transmitting area T1 adjacent to the first light-transmitting area T1, so that the light is easily totally reflected and will not be emitted from the adjacent first light-transmitting area T1, so as to reduce the light leakage of the image. In addition, the number of first display areas R1 used by the electronic device 1 for displaying images is not too small, so that images with a certain resolution can be displayed. For example, the ratio of the number of light control units 16 forming the first light-transmitting area T1 to the number of light control units 16 forming the non-light-transmitting area NT may be greater than or equal to 1 / 3 and less than or equal to 1 / 5 (that is, 1 / 3≤the ratio≤1 / 5). Alternatively, in some embodiments, the ratio of the pitch PT2 to the distance G1 between the light-emitting surface S1 of the sub-pixel R (or the sub-pixel G or the sub-pixel B) and the display medium DM may be greater than or equal to 0.5 and less than or equal to 2.

[0046] like Figure 3 As shown, the adjustable light control panel 14 may further include a first polarizer POL1 and a second polarizer POL2, wherein the first polarizer POL1 is disposed on a surface of the first substrate Sub1 away from the display medium DM, and the second polarizer POL2 is disposed on a surface of the second substrate Sub2 away from the display medium DM. The polarization direction of the first polarizer POL1 may be, for example, perpendicular or parallel to the polarization direction of the second polarizer POL2. Each light control unit 16 may include a portion corresponding to the first substrate Sub1, a portion corresponding to the second substrate Sub2, a portion corresponding to the display medium DM, a portion corresponding to the first polarizer POL1, and a portion corresponding to the second polarizer POL2, but is not limited thereto. By adjusting the rotation direction of the corresponding portion of the display medium DM, the light-transmitting state and the light-impermeable state of each light control unit 16 can be switched.

[0047] In some embodiments, the electronic device 1 may further include a quarter wave plate 19, which is disposed between the display 12 and the adjustable light control panel 14. Since the quarter wave plate 19 can delay the phase of the light by a quarter wavelength, the ambient light incident from the upper surface of the adjustable light control panel 14 can no longer be emitted from the upper surface of the adjustable light control panel 14 after passing through the adjustable light control panel 14 and the quarter wave plate 19, thereby achieving an anti-reflection effect to reduce the influence of the ambient light on the displayed image. The distance G1 may be the distance between the light emitting surface S1 and the display medium DM. In other words, Figure 3 In the embodiment of FIG. 1 , the distance G1 may be the total thickness of the third substrate Sub3 , the adhesive layer 18 , the quarter wave plate 19 , the first polarizer POL1 , and the first substrate Sub1 , but is not limited thereto.

[0048] exist Figure 1In the embodiment of the present invention, the electronic device 1 may further include an input unit 20, a timing controller 22, a signal processor 24, a gate driving circuit 26 and a data driving circuit 28, wherein the input unit 20 is electrically connected to the timing controller 22 and is used to transmit the audio and video signal or the image signal to the timing controller 22, and the timing controller 22 is electrically connected to the signal processor 24 and the gate driving circuit 26, so that the timing of the signal processor 24 and the timing of the gate driving circuit 26 can be matched with each other. The signal processor 24 can be electrically connected between the timing controller 22 and the data driving circuit 28, and the data driving circuit 28 can be further electrically connected to the display 12 and the adjustable light control panel 14. The signal processor 24 can be used to process the data input to the display 12, and transmit the processed signal to the data driving circuit 28, and the data driving circuit 28 can further convert the signal into a voltage signal for displaying an image and a voltage signal for switching the state of the light control unit 16. The gate driving circuit 26 can be electrically connected between the timing controller 22 and the display 12, and the voltage signal generated by the data driving circuit 28 for displaying an image can be transmitted to the display 12 in accordance with the timing of the gate driving circuit 26, so that the display 12 displays an image. In addition, the voltage signal generated by the data driving circuit 28 for switching the light control unit 16 can be transmitted to the adjustable light control panel 14 in accordance with the timing of the voltage signal for displaying an image, so that the formation time of the first light-transmitting area T1 can be matched with the opening time of the corresponding first display area R1. In other words, the display 12 and the adjustable light control panel 14 can share the same data driving circuit 28, but are not limited thereto. The signal processor 24 can include, for example, a graphics card, a central processing unit (CPU), a graphics processing unit (GPU), an application-specific chip (ASIC), a system on a chip (SoC), an integrated circuit (IC), or other suitable processors.

[0049] Please refer to Figure 5 , which is a schematic diagram of the circuit structure of an electronic device of a variation of the first embodiment of the present invention. Figure 5 As shown, the electronic device 1a provided in this embodiment is Figure 1The difference of the electronic device 1 shown is that the electronic device 1a may include a first data driving circuit 28a and a second data driving circuit 28b, wherein the first data driving circuit 28a is electrically connected between the signal processor 24 and the display 12, and the second data driving circuit 28b is electrically connected between the signal processor 24 and the adjustable light control panel 14. The first data driving circuit 28a may generate a voltage signal for displaying an image via a signal received from the signal processor 24, and transmit the signal to the display 12, while the second data driving circuit 28b may generate a voltage signal for switching the light control unit 16 between a light-transmitting state and a light-impermeable state via a signal received from the signal processor 24, and transmit the signal to the adjustable light control panel 14. In other words, the display 12 and the adjustable light control panel 14 of this embodiment may provide signals via different first data driving circuits 28a and second data driving circuits 28b, respectively, but the present invention is not limited thereto.

[0050] In some embodiments, when the signal processor 24 has sufficient computing power, the input unit 20 can be directly electrically connected to the signal processor 24, and the timing controller 22 can be electrically connected through the signal processor 24, so that the audio and video signal can be transmitted to the signal processor 24, and the timing signal can be transmitted to the timing controller 22 through the signal processor 24, but it is not limited to this. This connection method can also be applied to Figure 1 Embodiment of the invention. Figure 5 The other parts of the electronic device 1a may be similar or identical to Figure 1 The electronic device is not described here.

[0051] Please refer to Figure 6 , which is a cross-sectional schematic diagram of an electronic device according to a second embodiment of the present invention, wherein in order to clearly illustrate the relationship between the first display area and the first light-transmitting area, Figure 6 The sub-pixel R, sub-pixel G and sub-pixel B of the display and the light control unit of the adjustable light control panel are shown, and other components are omitted, but the present invention is not limited thereto. Figure 6 As shown, the electronic device 2 provided in this embodiment is Figure 1The difference of the electronic device 1 shown is that the electronic device 2 may include a first adjustable light control panel 14a and a second adjustable light control panel 14b, which are sequentially arranged on the display 12. The light control unit 16a of the first adjustable light control panel 14a may respectively correspond to and overlap the light control unit 16b of the second adjustable light control panel 14b in the top-down direction TD. For example, the first light-transmitting area T1b formed by the light control unit 16b may overlap with the first light-transmitting area T1a formed by the light control unit 16a, and the first light-transmitting area T1b and the first light-transmitting area T1a may also overlap with the first display area R1 formed by the pixel PX1, so that the divergence angle of each first display area R1 of the electronic device 2 toward the user can be reduced, thereby reducing the user's viewing angle of the electronic device 2 to enhance the anti-peeping capability. Figure 6 In the embodiment of the present invention, the ratio of the width W1 of the first light-transmitting area T1a of the light control unit 16a in the column direction RD to the width W2 of the first light-transmitting area T1b of the light control unit 16b in the column direction RD may be greater than or equal to 0.9 and less than or equal to 1.1 (that is, 0.9≤the ratio≤1.1), but is not limited thereto. In this case, the ratio of the area of ​​the first light-transmitting area T1a to the total area of ​​one first light-transmitting area T1a and one non-light-transmitting area NTa and the ratio of the area of ​​the first light-transmitting area T1b to the total area of ​​one first light-transmitting area T1b and one non-light-transmitting area NTb may be greater than or equal to 25% and less than or equal to 50%, but are not limited thereto.

[0052] exist Figure 6 In the embodiment of the present invention, the light control unit 16a can be divided into a plurality of groups PX2a, and each group PX2a can include two light control units 16a. The light control unit 16b can be divided into a plurality of groups PX2b, and each group PX2b can include two light control units 16b. However, the number of light control units 16a in the group PX2a and the number of light control units 16b in the group PX2b of the present invention are not limited to be the same as each other and are not limited to the above. Figure 6 The other parts of the electronic device 2 may be similar or identical to Figure 1 The electronic device is not described here.

[0053] The present invention will further explain the operation method of the electronic device. Figure 7 , which is a schematic diagram of the operation method of the electronic device in the first display mode according to the third embodiment of the present invention. The electronic device provided in this embodiment can adopt any of the electronic devices in the above embodiments, and the present invention is based on Figures 1 to 4 The electronic device 1 shown is taken as an example, but is not limited thereto. Figure 7As shown, the adjustable light control panel 14 may include a plurality of groups PX2, and each group PX2 may include, for example, a light control unit 161, a light control unit 162, a light control unit 163, and a light control unit 164 arranged in sequence. When the electronic device 1 is in the first display mode, the light control unit 161 of each group PX2 may form a first light-transmitting area T1 in the first frame time F1, and the light control unit 162, the light control unit 163, and the light control unit 164 of each group PX2 may form a non-light-transmitting area NT in the first frame time F1. Moreover, in the first frame time F1, at least one pixel PX1 of the display 12 corresponding to a first light-transmitting area T1 may form a corresponding first display area R1, so that the content of the first display area R1 may be viewed by the user through the first light-transmitting area T1. For example, the first display area R1 may overlap the corresponding first light-transmitting area T1, but is not limited thereto. In this case, when the user views the electronic device 1 along the top-view direction TD, the content of the light L1 generated by the first display area R1 may be viewed.

[0054] In the first frame time F1, at least one pixel PX1 of the display 12 corresponding to the non-light-transmitting area NT may also form or include a corresponding second display area R3, and the second display area R3 does not overlap the first light-transmitting area R1. Further, the second display area R3 may be located between two adjacent first display areas R1, and may overlap with the non-light-transmitting area NT in the top-view direction TD. For example, the distance between the second display area R3 and the first display area R1 located on the left and adjacent thereto may be the same as the distance between the second display area R3 and the first display area R1 located on the right and adjacent thereto, but is not limited thereto. In this case, the light L2 generated by the second display area R3 will be emitted from the electronic device 1 at a certain exit angle, so the viewing angle of the user viewing the electronic device 1 will be greater than a specific value and less than the angle at which the light L2 generates total reflection. In this way, the electronic device 1 can present independent images in two viewing angle ranges. In some embodiments, the image content displayed by the first display area R1 may be different from the image content displayed by the second display area R3.

[0055] In addition, the remaining pixels PX1 in the display 12 (i.e., pixels other than the pixels PX1 forming the first display area R1 and the second display area R3) may not generate light but be in a closed state, thereby forming a dark area R2. The dark area R2 may be located between the first display area R1 and the second display area R3, so that the image of the first display area R1 and the image of the second display area R3 do not interfere with each other. Figure 7 In the embodiment of FIG. 5 , the dark region R2 may partially overlap the light-transmitting region T1 and the non-light-transmitting region NT, but is not limited thereto.

[0056] like Figure 7As shown, subsequently, in the second frame time F2, the light control unit 161 of each group PX2 can be switched to a non-light-transmitting state to form a non-light-transmitting area NT, and the light control unit 162 adjacent to the light control unit 161 can be switched to a light-transmitting state to form a first light-transmitting area T1. In addition, the light control unit 163 and the light control unit 164 still maintain the non-light-transmitting state, so that the light control unit 163 and the light control unit 164 of the group PX2 and the light control unit 161 of another adjacent group PX2 can form a non-light-transmitting area NT. At the same time, in the second frame time F2, the positions of the first display area R1 and the second display area R3 of the display 12 will also be adjusted synchronously with the positions of the first light-transmitting area T1 and the non-light-transmitting area NT. Specifically, at least one pixel PX1 of the display 12 corresponding to the first light-transmitting area T1 in the second frame time F2 can form the first display area R1, so that the content of the first display area R1 can be viewed by the user through the first light-transmitting area T1. Furthermore, at least one pixel PX1 of the display 12 corresponding to the non-light-transmitting area NT in the second frame time F2 may also form the second display area R3, and the pixels PX1 located in the first display area R1 and the second display area R3 may be in a closed state to form the dark area R2. Similarly, in the third frame time F3, the light control unit 163 of the group PX2 may form the first light-transmitting area T1, the light control unit 161, the light control unit 162 and the light control unit 164 may form the non-light-transmitting area NT, the at least one pixel PX1 corresponding to the first light-transmitting area T1 may form the first display area R1, the at least one pixel PX1 corresponding to the non-light-transmitting area NT may form the second display area R3, and the pixels PX1 located in the first display area R1 and the second display area R3 may form the dark area R2. In the fourth frame time F4, the light control unit 164 of the group PX2 may form a first light-transmitting area T1, the light control unit 161, the light control unit 162 and the light control unit 163 may form a non-light-transmitting area NT, at least one pixel PX1 corresponding to the first light-transmitting area T1 may form a first display area R1, at least one pixel PX1 corresponding to the non-light-transmitting area NT may form a second display area R3, and the pixels PX1 located in the first display area R1 and the second display area R3 may form a dark area R2. After the fourth frame time F4, the first frame time F1, the second frame time F2, the third frame time F3 and the fourth frame time F4 may be repeated in sequence, so that the position of the first light-transmitting area T1 may change with different frame times, thereby reducing the stripes formed by the first light-transmitting area T1 and the non-light-transmitting area NT observed by the human eye. In some embodiments, the frequency of the position change of the first light-transmitting area T1, the first display area R1 and the second display area R3 may be greater than 60 Hz, for example, about 200 Hz, so that the human eye is not easy to see the stripes. The frequency can also be applied to the frequency of the position of the first light-transmitting area T1 and the position of the display area in any of the following embodiments. Figure 7 The display 12 may not form the second display area.

[0057] In some embodiments, the brightness of the sub-pixels in the pixel PX1 forming the first display region R1 may be higher as the distance from the dark region R2 is closer. Figure 7 When the sub-pixel R, sub-pixel G and sub-pixel B in the pixel PX1 display the same grayscale value, the brightness of the sub-pixel R and sub-pixel B may be greater than the brightness of the sub-pixel G, so that the user can view an image with more uniform brightness.

[0058] Please refer to Figure 8 , which is a schematic diagram of the operation method of the electronic device in the first display mode according to the fourth embodiment of the present invention. Figure 8 As shown, the operation method of this embodiment is similar to Figure 7 The difference in the operation method of is that the pixel PX1 of the display 12 can further form a corresponding first light adjustment area R4 on both sides of the first display area R1 during a frame time, so as to reduce the content displayed in the first display area R1 from being viewed by non-users. In this embodiment, the brightness of the pixel PX1 in the first light adjustment area R4 can be a first ratio of the brightness of the maximum grayscale value of the pixel PX1 of the display 12 in the second display mode minus a second ratio of the brightness of the content displayed by the pixel PX1 of the first display area R1, wherein the first ratio can range from 0.2% to 10%, and the second ratio can range from 0.2% to 2.5%. That is, the brightness of the first light adjustment area R4 can meet the formula: B1=(M×B2)-(N×B3), wherein B1 is the brightness of the first light adjustment area R4, B2 is the brightness of the maximum grayscale value of the pixel PX1 of the display 12 in the second display mode, B3 is the brightness of the content displayed by the pixel PX1 of the first display area R1, M is the first ratio, and N is the second ratio. It should be noted that, although the non-light-transmitting area NT can shield the light emitted from the first display area R1 in the direction of the wide viewing angle, in the absence of the light generated by the first light adjustment area R4, non-users at the wide viewing angle position (such as the side of the electronic device) may still be able to see the light leakage image of the first display area R1, so that the anti-peeping effect cannot be fully achieved. By generating the above brightness by the first light adjustment area R4, the light leaked from the first display area R1 to the direction of the wide viewing angle through the first light-transmitting area T1 can be neutralized by the light of the first light adjustment area R4, so that non-users are not easy or cannot see the image content displayed by the first light-transmitting area T1.

[0059] exist Figure 8In the embodiment of the present invention, the first light adjustment area R4 may be respectively disposed on both sides of the first display area R1, and thus may be respectively disposed between the first display area R1 and the corresponding second display area R3. In some embodiments, the pixel PX1 located between the first display area R1 and the first light adjustment area R4 may also form a dark area R2, and the pixel PX1 located between the second display area R3 and the first light adjustment area R4 may also form a dark area R2, but is not limited thereto.

[0060] In addition, if Figure 8 As shown, from the first frame time F1 to the fourth frame time F4, the light control unit 161, the light control unit 162, the light control unit 163 and the light control unit 164 of each group PX2 can form the first light-transmitting area T1 in sequence, and the first display area R1, the second display area R3, the first light adjustment area R4 and the dark area R2 of the display 12 can be adjusted synchronously with the displacement of the first light-transmitting area T1, as described in the above embodiments, so they are not elaborated here. Figure 8 The rest of the method of operation may be similar or identical to Figure 7 Therefore, no further description is given here.

[0061] Please refer to Fig. 9 , which is a cross-sectional schematic diagram of the electronic device of the fifth embodiment of the present invention when it is in the first display mode at one frame time. Fig. 9 When displaying the first display mode, one of the frame times F, and other frame times can refer to the change method of the above embodiment, but are not limited thereto. Fig. 9 As shown, the operation method of this embodiment is similar to Figure 8 The difference between the operation methods of the embodiment is that the width W1 (or Figure 2 The pitch PT1 of the pixel PX1 shown may be greater than the width W2 of the first light-transmitting region T1 in the column direction RD, so as to improve the image resolution of the first display mode.

[0062] exist Fig. 9 In the embodiment of the present invention, the first light adjustment area R4 may be selectively adjacent to the first display area R1 to enhance the light leakage capability of the first light adjustment area R4 and the first display area R1. The brightness of the pixel PX1 in the first light adjustment area R4 may refer to the above embodiment and will not be described in detail here. In some embodiments, the first light adjustment area R4 may be selectively adjacent to the first display area R1 and the second display area R3 at the same time, so that each pixel PX1 of the display 12 can be turned on, so that the display 12 does not form a dark area in the first display mode, but is not limited thereto. Fig. 9 The rest of the method of operation may be similar or identical to Figure 7 Therefore, no further description is given here.

[0063] Please refer to Fig.10, which is a cross-sectional schematic diagram of the electronic device of the sixth embodiment of the present invention when it is in the first display mode at one frame time. Fig.10 When displaying the first display mode, one of the frame times F, and other frame times can refer to the change method of the above embodiment, but are not limited thereto. Fig.10 As shown, the operation method of this embodiment is similar to Fig. 9 The difference between the operation methods is that the display 12 of this embodiment may not form Figure 7 The second display area R3 shown. Fig.10 In the embodiment, a first light adjustment area R4 may be formed between two adjacent first display areas R1, but is not limited thereto. In some embodiments, a dark area R2 may be selectively formed between the first display area R1 and the first light adjustment area R4. Fig.10 As shown, the number of the light control units 16 in the group PX2 is not limited to 4, but may be 3 or other suitable numbers. Fig.10 The rest of the method of operation may be similar or identical to Figure 7 Therefore, no further description is given here.

[0064] Please refer to Fig.11A and Fig. 11B , which is a schematic diagram of the operation method of the electronic device in the first display mode according to the seventh embodiment of the present invention. Fig.11A and Fig. 11B As shown, the operation method of this embodiment is similar to Figure 7 The difference in the operation method is that the first light-transmitting areas T1 formed by the adjustable light control panel 14 are not limited to being formed sequentially in the same group PX2, but can be formed in the same group PX2 or different groups PX2 in any order in different frame times. Fig.11A and Fig. 11B In the embodiment, the number of light control units forming a single first light-transmitting area T1 may be multiple, for example, two. In some embodiments, Fig.11A and Fig. 11B A first light-transmitting area T1 in the image processing apparatus may also be formed by a light control unit.

[0065] Specifically, if Fig.11AAs shown, each group PX2 may include, for example, a light control unit 161, a light control unit 162, a light control unit 163, a light control unit 164, a light control unit 165, a light control unit 166, a light control unit 167, and a light control unit 168 arranged in sequence. In the first frame time F1, the light control unit 167 and the light control unit 168 may form a first light-transmitting area T1, and the light control unit 161, the light control unit 162, the light control unit 163, the light control unit 164, the light control unit 165, and the light control unit 166 may form a non-light-transmitting area NT. Since the first display area R1, the second display area R3, the first light adjustment area R4, and the dark area R2 formed by the display 12 correspond to the first light-transmitting area T1, the relationship can be referred to Figure 8 In the second picture time F2, the light control unit 161 and the light control unit 162 can form a first light-transmitting area T1, and the light control unit 163, the light control unit 164, the light control unit 165, the light control unit 166, the light control unit 167 and the light control unit 168 form a non-light-transmitting area NT. Subsequently, in the third picture time F3, the adjustable light control panel 14 switches the light control unit that forms the first light-transmitting area T1 to the light control unit 163 and the light control unit 164. In the fourth picture time F3, the adjustable light control panel 14 forms the first light-transmitting area T1 with the light control unit 165 and the light control unit 166.

[0066] like Fig. 11B As shown, the fifth frame time F5 can be continued at Fig.11A After the fourth frame time F4 of the adjustable light control panel 14. In the fifth frame time F5, the adjustable light control panel 14 uses the light control unit 162 and the light control unit 163 to form the first light-transmitting area T1 instead of the light control unit 167 and the light control unit 168. Subsequently, in the sixth frame time F6, the adjustable light control panel 14 switches the light control units that form the first light-transmitting area T1 to the light control unit 164 and the light control unit 165. Then, in the seventh frame time F7, the adjustable light control panel 14 uses the light control unit 166 and the light control unit 167 to form the first light-transmitting area T1. Next, in the eighth frame time F8, the adjustable light control panel 14 uses the adjacent light control units 161 and the light control unit 168 in two adjacent groups PX2 to form the first light-transmitting area T1. After the eighth frame time F8, the steps from the first frame time F1 to the eighth frame time F8 can be repeated, or performed in any order, so that the position of the first light-transmitting area T1 can change with different frame times to reduce the visibility of the stripes. Fig.11A and Fig. 11B The rest of the method of operation may be similar or identical to Figure 7 Therefore, no further description is given here.

[0067] Please refer to Fig.12 , which is a schematic diagram of the operation method of the electronic device in the first display mode according to the eighth embodiment of the present invention. Fig.12 As shown, the operation method of the electronic device 1 of this embodiment is similar to Figure 7 The difference of the operation method shown is that the first display area R1 and the second display area R3 in the same frame time of the present embodiment do not overlap with the first light-transmitting area T1. Specifically, in the first frame time F1, the pixel PX1 of the display 12 may include the first display area R1 and the second display area R3, and a dark area R2 is formed between the first display area R1 and the second display area R3. At the same time, the light control unit 161 of each group PX2 may form a first light-transmitting area T1, and the light control unit 162, the light control unit 163 and the light control unit 164 may form a non-light-transmitting area NT. The first display area R1 and the second display area R3 do not overlap with the first light-transmitting area T1, but overlap with the non-light-transmitting area NT. When viewed from the top view direction TD, one first display area R1 and one second display area R3 may overlap with a corresponding non-light-transmitting area NT, wherein the first display area R1 is closer to the first light-transmitting area T1 located on the left side of the non-light-transmitting area NT, and the second display area R3 is closer to the first light-transmitting area T1 located on the right side of the non-light-transmitting area NT. In other words, the first light-transmitting region T1 may overlap with the dark region R2, and the first display region R1 and the second display region R3 may be located on the right and left sides of the same first light-transmitting region T1, respectively. Fig.12 In the embodiment of the present invention, the distances between the first display area R1 and the second display area R3 and the same first light-transmitting area T1 may be the same. In this case, the light L1 generated by the first display area R1 may be emitted toward the left side of the electronic device through the first light-transmitting area T1, and thus may be viewed by a user located on the left side of the electronic device 1, while the light L2 generated by the second display area R3 may be emitted toward the right side of the electronic device 1 through the first light-transmitting area T1, and thus may be viewed by a user located on the right side of the electronic device 1. In this way, the electronic device 1 may present independent images to users located on different sides.

[0068] like Fig.12As shown, the electronic device 1 can also sequentially change the position of the first light-transmitting area T1 and the positions of the first display area R1 and the second display area R3 in different frame times. In detail, in the second frame time F2 after the first frame time F1, the light control unit 162 of the group PX2 can form the first light-transmitting area T1, the light control unit 161, the light control unit 163 and the light control unit 164 can form the non-light-transmitting area NT, the pixels PX1 corresponding to the non-light-transmitting area NT and located on both sides of the first light-transmitting area T1 in the top-view direction TD can form the first display area R1 and the second display area R3, and the pixels PX1 located in the first display area R1 and the second display area R3 can form the dark area R2. Then, in the third frame time F3, the light control unit 163 of the group PX2 can form the first light-transmitting area T1, and the light control unit 161, the light control unit 162 and the light control unit 164 can form the non-light-transmitting area NT. Furthermore, some pixels PX1 corresponding to the non-light-transmitting area NT and located on both sides of the first light-transmitting area T1 in the top-view direction TD may form the first display area R1 and the second display area R3, and the pixels PX1 located in the first display area R1 and the second display area R3 may form the dark area R2. Then, in the fourth frame time F4, the light control unit 164 of the group PX2 may form the first light-transmitting area T1, and the light control unit 161, the light control unit 162, and the light control unit 163 may form the non-light-transmitting area NT. Furthermore, some pixels PX1 corresponding to the non-light-transmitting area NT and located on both sides of the first light-transmitting area T1 in the top-view direction TD may form the first display area R1 and the second display area R3, and the pixels PX1 located in the first display area R1 and the second display area R3 may form the dark area R2. Since the relationship between the positions of the first display area R1, the second display area R3, and the dark area R2 and the position of the first light-transmitting area T1 in the second frame time F2 to the fourth frame time F4 may be the same as that in the first frame time F1, no further details will be given here. Fig.12 The rest of the method of operation may be similar or identical to Figure 7 Therefore, no further description is given here.

[0069] Please refer to Fig.13 , which is a cross-sectional schematic diagram of an electronic device in a first display mode at one frame time according to a ninth embodiment of the present invention. Fig.13 As shown, the operation method of this embodiment is similar to Fig.12The difference in the operation method of is that the pixel PX1 of the display 12 can further form a corresponding first light adjustment area R4 on both sides of the second display area R3 and a corresponding second light adjustment area R5 on both sides of the first display area R1 in a frame time F, so as to reduce the content displayed in the first display area R1 and the second display area R3 from being viewed by non-users. In this embodiment, the brightness of the first light adjustment area R4 can be 0.2% to 10% of the brightness of the maximum grayscale value of all pixels PX1 of the display 12 displaying a white picture minus 0.2% to 2.5% of the brightness of the corresponding first display area R1. The brightness of the second light adjustment area R5 can be 0.2% to 10% of the brightness of the maximum grayscale value of all pixels PX1 of the display 12 displaying a white picture minus 0.2% to 2.5% of the brightness of the corresponding second display area R3. It should be noted that the above-mentioned brightness is generated by the first light adjustment area R4 and the second light adjustment area R5, and the light leaked from the first display area R1 to the non-predetermined viewing angle range through the first light-transmitting area T1 (for example, the light not emitted to the left) can be neutralized by the light of the first light adjustment area R4, so that non-users are difficult or unable to view the image content displayed by the first light-transmitting area T1. Similarly, the light leaked from the second display area R3 to the non-predetermined viewing angle range (for example, the light not emitted to the right) can be neutralized by the light of the second light adjustment area R5, thereby improving the anti-peeping effect.

[0070] In some embodiments, the first light adjustment area R4 may be adjacent to the second display area R3, and / or the second light adjustment area R5 may be adjacent to the first display area R1, but not limited thereto. In some embodiments, there may be a pixel PX1 between the first light adjustment area R4 and the second light adjustment area R5, and the pixel PX1 may form a dark area R2, but not limited thereto. In some embodiments, Fig.13 The pixel PX1 can be used Fig. 9 There is no way to form the dark area R2, and the first light adjustment area R4 may be adjacent to the second light adjustment area R5, but is not limited thereto. Fig.13 The rest of the method of operation may be similar or identical to Fig.12 Therefore, no further description is given here.

[0071] In summary, in the electronic device of the present invention, the electronic device can perform a first display mode to switch the light-transmitting state and the light-opaque state of different light control units through an adjustable light control panel, forming stripes in which light-transmitting strips and light-opaque strips are alternately arranged. When the image of the display passes through the light-transmitting strips, it can be displayed in a specific direction, so that only users at a specific position can view the image, while others outside the specific position can hardly view the image, thereby achieving an anti-peeping effect. The electronic device of the present invention can also perform a second display mode, so that the image displayed by the display completely passes through the second light-transmitting area and is fully displayed. Moreover, through the state switching of the light control unit, the adjustable light control panel can present different numbers and arrangements of the first light-transmitting area and the non-light-transmitting area, so that the image of the display can have different anti-peeping angles after passing through the adjustable light control panel. Therefore, the electronic device can switch the display mode or adjust the anti-peeping angle in real time according to different needs, thereby enhancing the use of the display.

[0072] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electronic device capable of switching between a first display mode and a second display mode, characterized in that: include: a display; as well as An adjustable light control panel is disposed on the display and includes a plurality of light control units, and the adjustable light control panel includes: a first substrate; a second substrate, disposed opposite to the first substrate; and a display medium, sandwiched between the first substrate and the second substrate, wherein in the first display mode, the plurality of light control units form a plurality of first light-transmitting areas and a plurality of non-light-transmitting areas arranged alternately in sequence through the display medium, and in the second display mode, the plurality of light control units form a second light-transmitting area through the display medium, The ratio of the area of ​​the plurality of first light-transmitting regions to the total area of ​​the plurality of light control units is different from the ratio of the area of ​​the second light-transmitting regions to the total area of ​​the plurality of light control units.

2. The electronic device according to claim 1, wherein: The display comprises a plurality of pixels, and an angle between an extension direction of one of the plurality of light control units and a row direction of the plurality of pixels is greater than or equal to 5 degrees and less than or equal to 30 degrees.

3. The electronic device according to claim 1, wherein: A ratio of an area of ​​one of the plurality of first light-transmitting regions to a total area of ​​one of the plurality of first light-transmitting regions and one of the plurality of non-light-transmitting regions is greater than or equal to 14% and less than or equal to 50%.

4. The electronic device according to claim 1, wherein: The invention also comprises a quarter wave plate, which is arranged between the display and the adjustable light control panel.

5. The electronic device according to claim 1, wherein: The adjustable light control panel further includes a first polarizer and a second polarizer. The first polarizer is disposed on a surface of the first substrate away from the display medium, and the second polarizer is disposed on a surface of the second substrate away from the display medium.

6. The electronic device as claimed in claim 1, characterized in that: The display includes a plurality of light emitting elements and a third substrate, and the third substrate is arranged between the plurality of light emitting elements and the adjustable light control panel.

7. The electronic device according to claim 6, wherein: A ratio of a total width of one of the plurality of first light-transmitting regions and one of the plurality of non-light-transmitting regions to a distance between the display medium and one of the plurality of light-emitting elements is greater than or equal to 0.5 and less than or equal to 2.

8. The electronic device as claimed in claim 1, wherein: The display includes a plurality of pixels, and a brightness of a maximum grayscale value of one of the plurality of pixels in the second display mode falls within a range of 12% to 60% of a brightness of a maximum grayscale value of one of the plurality of pixels in the first display mode.

9. The electronic device as claimed in claim 1, wherein: The display includes a plurality of pixels, and the plurality of pixels include a first display area and a second display area, wherein the first display area overlaps with one of the plurality of first light-transmitting areas, and the second display area does not overlap with the plurality of first light-transmitting areas.

10. The electronic device according to claim 1, wherein: The display includes a plurality of pixels, and the plurality of pixels include a first display area and a second display area, wherein the first display area and the second display area do not overlap with the plurality of first light-transmissive areas.

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