TWI741796B - Eyeball training apparatus - Google Patents

Abstract

An eyeball training apparatus including a carrier, a transmissive liquid crystal device and a control unit is provided. The carrier has a see-through region. The transmissive liquid crystal device is disposed on the carrier and overlaps the see-through region. The transmissive liquid crystal device includes two substrates, two polarizers, a liquid crystal layer, a light shielding pattern and a plurality of pixel structures. The polarizers are respectively disposed on the substrates. The substrates are positioned between the polarizers. The liquid crystal layer is disposed between the substrates. The light shielding pattern has a plurality of openings overlapping the see-through region. The percentage of the orthogonal projection area of the area occupied by the openings on one of the substrates and the orthogonal projection area of the area occupied by the see-through area on one of the substrates is greater than 95%. The pixel structures are respectively overlapped with the openings. The control unit is disposed on the carrier and is electrically connected to the transmissive liquid crystal device.

Description

Eyeball training device

The present invention relates to an electronic device, and particularly relates to an eyeball training device.

After the eyeball revolution started, it accelerated the replacement of many technological products. For example, smartphones, tablets, smart TVs with ultra-high resolution, and even wearable mobile devices with augmented reality (AR) or virtual reality (VR) functions have gradually become An indispensable part of people's lives. In order to relieve the fatigue of human eyes under long-term use or slow down the deterioration of vision, related products for eye training have also emerged. However, most of the eyeball training devices currently on the market use closed visual training (that is, the training content cannot be integrated with the surrounding environment), and the appearance and volume are slightly bulky.

The invention provides an eyeball training device that is easy to carry and has a better visual experience.

The eyeball training device of the present invention includes a carrier, a penetrating liquid crystal element and a control unit. The carrier has a see-through area. The transmissive liquid crystal element is arranged on the carrier and overlaps the see-through area. The transmissive liquid crystal element includes two substrates, two polarizers, a liquid crystal layer, a light-shielding pattern, and multiple pixel structures. Two polarizers are respectively arranged on the substrates, and the substrates are located between the polarizers. The liquid crystal layer is arranged between these substrates. The light-shielding pattern has a plurality of openings overlapping the perspective area, and the percentage value of the vertical projection area of the area occupied by these openings on one of the substrates and the vertical projection area of the area occupied by the perspective area on one of the substrates is greater than 95%. These pixel structures overlap these openings, respectively. The control unit is arranged on the carrier and is electrically connected to the transmissive liquid crystal element.

In an embodiment of the present invention, the distance between any two adjacent openings arranged in one direction of the above-mentioned eyeball training device in this direction is less than 9 micrometers.

In an embodiment of the present invention, the multiple openings of the above-mentioned eyeball training device respectively have a width in one direction, any two adjacent openings arranged in this direction have a distance in this direction, and the ratio of the distance to the width is Between 0.01 and 0.03.

In an embodiment of the present invention, the transmissive liquid crystal element of the aforementioned eyeball training device further includes an electrode layer disposed on one side of the liquid crystal layer. The pixel structures respectively have a plurality of pixel electrodes, and the pixel electrodes are arranged on the other side of the liquid crystal layer.

In an embodiment of the present invention, the transmissive liquid crystal element of the above-mentioned eyeball training device further includes a plurality of first signal lines and a plurality of second signal lines. A plurality of second signal lines intersect with these first signal lines. The pixel structures respectively have active devices and pixel electrodes electrically connected to each other, and the active devices are electrically connected to one of the first signal lines and one of the second signal lines.

In an embodiment of the present invention, the above-mentioned eyeball training device further includes an optical zoom element. The optical zoom element is overlapped and arranged on a plurality of openings of the transmissive liquid crystal element.

In an embodiment of the present invention, the shading pattern of the above-mentioned eyeball training device is a composite structure of a plurality of first signal lines and a plurality of second signal lines, and the first signal lines intersect the second signal lines. The transmissive liquid crystal element further includes an insulating layer disposed between the first signal lines and the second signal lines.

In an embodiment of the present invention, the transmissive liquid crystal element of the above-mentioned eyeball training device further includes a quarter-wave plate, which is overlapped on two polarizers, and one of these polarizers is located at the quarter-wave plate. Between the sheet and the liquid crystal layer.

In an embodiment of the present invention, the materials of the two substrates of the above-mentioned eye training device include polyimide or polyethylene terephthalate.

In an embodiment of the present invention, the carrier of the above-mentioned eyeball training device is a spectacle frame.

Based on the above, in the eye training device of an embodiment of the present invention, the area occupied by the plurality of openings of the light-shielding pattern of the see-through liquid crystal element is perpendicular to the vertical projection area of the substrate and the area occupied by the see-through area is perpendicular to the substrate The percentage value of the projected area is greater than 95%. Accordingly, the visibility of the non-transmissive area between the multiple pixel structures can be significantly reduced, which helps to improve the user's interactive experience with the surrounding environment during eye training, and enhance the visual comfort.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

The foregoing and other technical content, features, and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, for example: up, down, left, right, front or back, etc., are only directions for referring to the attached drawings. Therefore, the directional terms used are used to illustrate but not to limit the present invention.

Fig. 1 is a schematic front view of an eyeball training device according to a first embodiment of the present invention. Fig. 2 is a partial enlarged schematic diagram of the eyeball training device of Fig. 1. FIG. 3 is an enlarged schematic diagram of a partial area of the transmissive liquid crystal element of FIG. 2. 4 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 3. FIG. 3 corresponds to the partial area I of FIG. 2. Fig. 4 corresponds to the section line A-A' of Fig. 3. 5A and 5B are schematic diagrams of a rear view of the eye training device of FIG. 1 in an operation mode. Fig. 6 is a schematic diagram of a rear view of the eyeball training device of Fig. 1 in another mode of operation. In particular, for the sake of clarity, FIG. 3 omits the insulating layer 113, the flat layer 114, the cover layer 115, the liquid crystal layer LCL, the electrode layer EL, the substrate 112, the polarizer POL2, and the quarter wave of FIG. 4 for clarity. Illustration of slice 116.

Please refer to FIGS. 1 to 4, the eyeball training device 10 includes a carrier 100 and a transmissive liquid crystal element 110. The carrier 100 has a see-through area STR. The transmissive liquid crystal element 110 is disposed on the carrier 100 and overlaps the see-through area STR. In this embodiment, the eyeball training device 10 may be a wearable device, such as smart glasses. More specifically, the carrier 100 may be a spectacle frame to be worn on the head of the user. The spectacle frame has an opening 100 a and an opening 100 b corresponding to the eyes of the user, and the two openings can define two perspective areas STR of the carrier 100. Correspondingly, the number of the transmissive liquid crystal element 110 in this embodiment is two (for example, the transmissive liquid crystal element 110R and the transmissive liquid crystal element 110L), which are respectively disposed on the carrier 100 corresponding to the opening 100a and the opening 100a of the user's right eye. In the opening 100b of the user's left eye.

However, the present invention is not limited to this. According to other unshown embodiments, the carrier of the eyeball training device may also be a fixed base, and the base also has a limiting structure suitable for the user to lean against. This limiting structure can ensure that the user's eyes can see through the two openings to see the image of the penetrating liquid crystal element or the scene behind it.

Furthermore, the transmissive liquid crystal element 110 includes a substrate 111, a substrate 112, a liquid crystal layer LCL, a polarizer POL1, and a polarizer POL2. The polarizer POL1 and the polarizer POL2 are respectively disposed on the substrate 111 and the substrate 112, and the substrate 111 and the substrate 112 are located between the polarizer POL1 and the polarizer POL2. The liquid crystal layer LCL is disposed between the substrate 111 and the substrate 112. In order to achieve the lightness and thinness of the transmissive liquid crystal element 110, the material of the substrate 111 and the substrate 112 may include polyimide (PI), polyethylene terephthalate (PET), or other suitable materials. Polymer Materials. However, the present invention is not limited to this. According to other embodiments, the material of the substrate 111 and the substrate 112 may also be glass, quartz or other suitable hard materials.

More specifically, the transmissive liquid crystal element 110 may be an electrically controlled liquid crystal cell. Therefore, the transmissive liquid crystal element 110 may also selectively include a plurality of first signal lines SL1, a plurality of second signal lines SL2, and a light shielding pattern BM. The first signal lines SL1 are arranged along the direction X and extend in the direction Y, and the second signal lines SL2 are arranged along the direction Y and extend in the direction X. That is, the second signal lines SL2 intersect with the first signal lines SL1. In order to ensure the electrical independence of the first signal line SL1 and the second signal line SL2, an insulating layer 113 is provided between the first signal line SL1 and the second signal line SL2.

On the other hand, the light shielding pattern BM completely overlaps the first signal lines SL1 and the second signal lines SL2 in the normal direction of the substrate 111 (for example, the direction Z), and has a plurality of openings OP overlapping the see-through region STR. These openings OP can define a plurality of pixel regions of the transmissive liquid crystal element 110, and these pixel regions are respectively provided with a plurality of pixel structures PX. That is, the pixel structures PX overlap the openings OP, respectively. In this embodiment, the light-shielding pattern BM is provided on the substrate 112, and the first signal line SL1 and the second signal line SL2 are provided on the substrate 111, but not limited to this. In other embodiments, the light shielding pattern BM, the first signal line SL1 and the second signal line SL2 can also be disposed on the same substrate.

In this embodiment, the pixel structure PX includes an active element T and a pixel electrode PE electrically connected to each other. The active device T is electrically connected to a corresponding first signal line SL1 and a corresponding second signal line SL2. For example, the first signal line SL1 is, for example, a scan line, the second signal line SL2 is, for example, a data line, and the gate and source of the active device T are electrically connected to the first signal line. SL1 and the second signal line SL2. In other words, the transmissive liquid crystal element 110 of this embodiment is an electrically controlled liquid crystal cell with an active matrix, but the invention is not limited to this. In order to ensure the electrical independence between the pixel electrode PE and the second signal line SL2 and the flatness of the pixel electrode PE, a flat layer 114 is provided between the pixel electrode PE and the second signal line SL2.

In particular, the percentage value of the vertical projection area of the area occupied by the plurality of openings OP of the light shielding pattern BM on the substrate 111 and the vertical projection area of the area occupied by the see-through area STR on the substrate 111 is greater than 95%. Accordingly, the visibility of the non-transmissive area (that is, the area occupied by the shading pattern BM) between these pixel structures PX can be significantly reduced, which helps to improve the user's interactive experience with the surrounding environment during eye training , And improve visual comfort. In a preferred embodiment, the percentage value of the vertical projection area of the area occupied by the plurality of openings OP of the light shielding pattern BM on the substrate 111 and the vertical projection area of the area occupied by the see-through region STR on the substrate 111 may be greater than 98%.

For example, the opening OP of the light-shielding pattern BM has a width W1 and a width W2 in the direction X and the direction Y, respectively, and any two adjacent openings OP arranged in the direction X have a spacing S1 in the direction X, and in the direction Y Any two openings OP arranged and adjacent to each other have a distance S2 in the direction Y. In order for the transmissive liquid crystal element 110 to have a higher aperture ratio, the ratio of the spacing S1 to the width W1 and/or the ratio of the spacing S2 to the width W2 can be between 0.01 and 0.03, for example: the spacing S1 and /Or the spacing S2 is less than 9 microns, and the width W1 and/or the width W2 are greater than 500 microns.

Furthermore, the transmissive liquid crystal element 110 further includes an electrode layer EL and a cover layer 115. The electrode layer EL is disposed on one side of the liquid crystal layer LCL and opposite to the pixel electrode PE on the other side of the liquid crystal layer LCL. The cover layer 115 is sandwiched between the electrode layer EL and the light shielding pattern BM. In this embodiment, the plurality of pixel electrodes PE of the plurality of pixel structures PX are electrically independent of each other, and the electrode layer EL is a full-surface electrode (that is, an unpatterned conductive layer), but the present invention does not take this as limit. In order to obtain a better see-through effect, the pixel electrode PE and the electrode layer EL of the transmissive liquid crystal element 110 are, for example, light transmissive electrodes, and the materials of the light transmissive electrodes include indium tin oxide, indium zinc oxide, and aluminum. Tin oxide, aluminum zinc oxide, or other suitable oxides, extremely thin metals, carbon nanotubes, graphene, or a stack of at least two of the above.

In particular, the liquid crystal layer LCL of the transmissive liquid crystal element 110 can adopt a twisted nematic liquid crystal (TN-LC) mode, or a super twisted nematic liquid crystal (STN-LC). ) Mode, vertical alignment liquid crystal (VA-LC) mode, or electrically controlled birefringence (ECB) mode, but not limited to this.

In order to prevent the user from being unable to receive polarized light (such as linearly polarized light) from the outside or other display devices via the eye training device 10, the transmissive liquid crystal element 110 may also optionally include a quarter wave plate 116. The quarter wave plate 116 is overlapped and arranged on the polarizer POL2 and the polarizer POL1, and the polarizer POL2 is located between the quarter wave plate 116 and the liquid crystal layer LCL. That is, the quarter wave plate 116 is disposed on the side of the polarizer POL2 away from the liquid crystal layer LCL.

On the other hand, the eyeball training device 10 further includes a circuit soft board 120 and a control unit 200. The circuit soft board 120 is bonded to the periphery of the transmissive liquid crystal element 110 to electrically connect the first signal line SL1 and the second signal line SL2. The control unit 200 is disposed on the carrier 100 and is electrically connected to the transmissive liquid crystal element 110 via the circuit soft board 120. The circuit soft board 120 here is, for example, a chip on film (COF) or a transmission circuit board, but it is not limited to this. In this embodiment, the eye training device 10 can communicate with an external device 300 (such as a mobile phone, a computer, a tablet, a device with artificial intelligence, or a networked device) via wireless communication (such as Bluetooth, near field communication, or wireless hotspot). Perform signal exchange. However, in other embodiments, the eyeball training device can also be connected to an external device via a physical wire for signal transmission. Of course, the eyeball training device 10 can also be provided with a storage element to store the execution program and related setting parameters. That is, the eyeball training device 10 can also be operated independently.

Since the multiple pixel structures PX of the transmissive liquid crystal element 110 can independently control the transmittance of the multiple pixel regions (that is, the regions defined by the multiple openings OP), they are located at different positions in the perspective region STR Light spots with different sizes or light intensities can be formed to achieve the guiding or training function of eyeball movement. In the following, two operation modes of the eyeball training device 10 will be exemplarily described.

Referring to FIGS. 5A and 5B, when the eyeball training device 10 is operated in the guiding mode of eyeball movement, the transmissive liquid crystal element 110R will switch most areas of the see-through area STR to be opaque and in a predetermined position. The pixel area is switched to a predetermined light transmittance to present a guiding index (as the cross mark in Figure 5A). As shown in FIG. 5A, when the guiding index appears in the upper left corner of the perspective area STR, the user can be attracted to rotate the right eye to move the attention point toward the first position P1. Next, the guiding index is set on the right side of the perspective area STR, and the user is allowed to rotate the right eyeball again to move the focus point toward the second position P2, as shown in FIG. 5B. The guiding index is moved between multiple positions in the perspective zone STR to drive the eyeball to rotate correspondingly, so as to achieve the purpose of eyeball training. It should be noted that the penetrating liquid crystal element 110L corresponding to the left eye of the user also performs eyeball training in a similar manner, and will not be repeated here.

On the other hand, the eyeball training device 10 can also be used for vision training for amblyopic patients. For example: when the vision of the left eye of the patient is worse than the vision of the right eye, the eyeball training device 10 can be adjusted to correspond to the multiple pixel areas of the penetrating liquid crystal element 110L of the patient’s left eye (that is, the multiple pixels that overlap the fluoroscopic area STRb). The regions defined by each opening OP have high light transmittance, and the multiple pixel regions of the transmissive liquid crystal element 110R corresponding to the patient's right eye (ie, the region defined by the multiple openings OP overlapping the fluoroscopic region STRa) The light transmittance decreases from the center of the perspective zone STRa toward the surroundings, as shown in Figure 6. In this way, while the patient is training the left eye vision, the right eye vision can be reduced to a predetermined value, which helps to alleviate the patient's discomfort during the training process and increase the design flexibility of the treatment course.

Other embodiments will be listed below to describe the disclosure in detail, wherein the same components will be marked with the same symbols, and the description of the same technical content will be omitted. For the omitted parts, please refer to the foregoing embodiments, and will not be repeated hereafter.

Fig. 7 is a schematic diagram of a transmissive liquid crystal element according to a second embodiment of the present invention. FIG. 8 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 7. Fig. 8 corresponds to the section line B-B' of Fig. 7. 7 and 8, the difference between the transmissive liquid crystal element 110A of this embodiment and the transmissive liquid crystal element 110 of FIG. 3 is that the transmissive liquid crystal element 110A does not have the light-shielding pattern BM and the cover layer as shown in FIG. 3 115.

In detail, the plurality of first signal lines SL1 and the plurality of second signal lines SL2 of the transmissive liquid crystal element 110A can define a plurality of openings OP' (or pixel regions). That is, the composite structure of the first signal lines SL1 and the second signal lines SL2 of this embodiment can simultaneously serve as a light-shielding pattern. Therefore, the width of the first signal line SL1 in the direction Y can define the spacing S2' between any two adjacent openings OP' arranged in the direction Y, and the distance between the two adjacent first signal lines SL1 The distance can define the width W2' of the opening OP' in the direction Y. Similarly, the width of the second signal line SL2 in the direction X can define the spacing S1' between any two adjacent openings OP' arranged in the direction X, and the distance between two adjacent second signal lines SL2 The distance can define the width W1' of the opening OP' in the direction X.

In order to allow the transmissive liquid crystal element 110 to have a higher aperture ratio, for example, the area occupied by these openings OP' is determined by the vertical projection area of the substrate 111 and the perspective area STR (as shown in FIGS. 1 and 2). The percentage value of the area occupied by the vertical projection area of the substrate 111 is greater than 95%, and the ratio of the spacing S1' to the width W1' and/or the ratio of the spacing S2' to the width W2' can be between 0.01 and 0.03, for example: spacing S1 'And/or spacing S2' is less than 9 microns, and width W1' and/or width W2' is greater than 500 microns. Accordingly, the visibility of the non-transmissive area (that is, the area occupied by the signal line) between these pixel structures PX can be significantly reduced, which helps to improve the user’s interactive experience with the surrounding environment during eye training. And improve visual comfort.

It should be understood that, in this embodiment, the first signal line SL1 and the second signal line SL2 may respectively have protrusions (not shown) to shield the semiconductor layer of the active device T from long-term exposure to external light sources. Deterioration occurs and affects the electrical properties of the active element T.

FIG. 9 is a schematic cross-sectional view of a transmissive liquid crystal element according to a third embodiment of the present invention. Referring to FIG. 9, the difference between the transmissive liquid crystal element 110B of this embodiment and the transmissive liquid crystal element 110 of FIG. 4 is: the number of quarter wave plates of the transmissive liquid crystal element 110 is two, respectively The quarter wave plate 116 and the quarter wave plate 117. Different from the transmissive liquid crystal element 110 of the first embodiment, the transmissive liquid crystal element 110B of this embodiment is further provided with another quarter wave plate 117 on the side of the polarizer POL1 away from the liquid crystal layer LCL. Accordingly, the process flexibility of the transmissive liquid crystal element 110B can be increased, and the purpose of reducing the production cost can be achieved.

10 is a schematic cross-sectional view of a transmissive liquid crystal element according to a fourth embodiment of the present invention. Please refer to FIG. 10, the difference between the eyeball training device 20 of this embodiment and the eyeball training device 10 of FIG. In this embodiment, the optical zoom element 150 is disposed on the side of the polarizer POL2 away from the liquid crystal layer LCL (ie, the side of the transmissive liquid crystal element 110 closer to the scene), but it is not limited to this. In other embodiments, the optical zoom element 150 may also be disposed on the side of the polarizer POL1 away from the liquid crystal layer LCL (ie, the side of the transmissive liquid crystal element 110 closer to the human eye).

In this embodiment, the optical zoom element 150 is, for example, a liquid lens, a liquid crystal lens, an Alvarez lens, a zoom lens driven by the principle of piezoelectricity, or It is a zoom lens driven by a voice coil motor (VCM). It is worth mentioning that the setting of the optical zoom element 150 can increase the focusing ability of the eye training device 20. For example, when the user is a (pseudo-) short-sighted patient (such as two Baidu short-sightedness), the diopter of the optical zoom element 150 can be adjusted to compensate the user's partial short-sightedness (such as 150 degrees), thereby allowing the user to Under the guidance of the transmissive liquid crystal element 110, the degree of myopia can be reduced through eyeball training.

Fig. 11 is a schematic diagram of a transmissive liquid crystal element according to a fifth embodiment of the present invention. FIG. 12 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 11. Fig. 12 corresponds to the section line C-C' of Fig. 11. Referring to FIGS. 11 and 12, the difference between the transmissive liquid crystal element 110C of this embodiment and the transmissive liquid crystal element 110 of FIGS. 3 and 4 is that the transmissive liquid crystal element 110C is a passive matrix (passive matrix) circuit. Control LCD box.

In this embodiment, the pixel structure PX of the transmissive liquid crystal element 110C does not have the active element T as shown in FIG. 3, and the first signal line SL1 and the second signal line SL2 of FIG. 3 are respectively formed by the first strip electrode SE1 Replace with the second strip electrode SE2. That is, the plurality of first strip-shaped electrodes SE1 of the transmissive liquid crystal element 110C are arranged along the direction Y and extend in the direction X, and the plurality of second strip-shaped electrodes SE2 are arranged along the direction X and extend in the direction Y . It is worth noting that the multiple intersections (or overlaps) of the first strip-shaped electrodes SE1 and the second strip-shaped electrodes SE2 can define a plurality of pixel areas PA of the transmissive liquid crystal element 110C, and these strips The portions of the shaped electrodes overlapping these pixel areas PA can form groups of pixel electrodes corresponding to these pixel areas PA.

The strip electrode of the transmissive liquid crystal element 110C is, for example, a light transmissive electrode. The material of the light transmissive electrode includes indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, or other suitable materials. Oxide, ultra-thin metal, carbon nanotube, graphene, or a stack of at least two of the above.

In summary, in the eye training device of an embodiment of the present invention, the area occupied by the multiple openings of the light-shielding pattern of the see-through transmissive liquid crystal element is on the substrate. The vertical projection area and the area occupied by the see-through area are on the substrate. The percentage value of the vertical projection area is greater than 95%. Accordingly, the visibility of the non-transmissive area between the multiple pixel structures can be significantly reduced, which helps to improve the user's interactive experience with the surrounding environment during eye training, and enhance the visual comfort.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be subject to those defined by the attached patent application scope.

10.20: Eyeball training device 100: carrier 100a, 100b: opening 110, 110A, 110B, 110C, 110R, 110L: transmissive liquid crystal element 111, 112: substrate 113: Insulation layer 114: Flat layer 115: cover layer 116, 117: quarter wave plate 120: circuit soft board 150: Optical zoom element 200: control unit 300: External device BM: shading pattern EL: Electrode layer LCL: liquid crystal layer OP, OP’: opening P1: first position P2: second position PA: pixel area PE: pixel electrode PX: Pixel structure POL1, POL2: Polarizer S1, S2, S1’, S2’: Spacing SE1: The first strip electrode SE2: second strip electrode SL1: The first signal line SL2: second signal line STR, STRa, STRb: perspective area T: Active component W1, W2, W1’, W2’: width X, Y, Z: direction I: local area A-A’, B-B’, C-C’: cut line

Fig. 1 is a schematic front view of an eyeball training device according to a first embodiment of the present invention. Fig. 2 is a partial enlarged schematic diagram of the eyeball training device of Fig. 1. FIG. 3 is an enlarged schematic diagram of a partial area of the transmissive liquid crystal element of FIG. 2. 4 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 3. 5A and 5B are schematic diagrams of a rear view of the eye training device of FIG. 1 in an operation mode. Fig. 6 is a schematic diagram of a rear view of the eyeball training device of Fig. 1 in another mode of operation. Fig. 7 is a schematic diagram of a transmissive liquid crystal element according to a second embodiment of the present invention. FIG. 8 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 7. FIG. 9 is a schematic cross-sectional view of a transmissive liquid crystal element according to a third embodiment of the present invention. 10 is a schematic cross-sectional view of a transmissive liquid crystal element according to a fourth embodiment of the present invention. Fig. 11 is a schematic diagram of a transmissive liquid crystal element according to a fifth embodiment of the present invention. FIG. 12 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 11.

10: Eyeball training device

100: carrier

100b: Open hole

110, 110L: transmissive liquid crystal element

111, 112: substrate

120: circuit soft board

200: control unit

300: External device

BM: shading pattern

OP: opening

STR: Perspective area

X, Y, Z: direction

I: local area

Claims (9)

An eyeball training device includes: a carrier with a see-through area; a transmissive liquid crystal element arranged on the carrier and superimposed on the see-through area, the transmissive liquid crystal element comprising: two substrates; two polarizers, Are respectively disposed on the substrates, and the substrates are located between the polarizers; a liquid crystal layer is disposed between the substrates; a light-shielding pattern has a plurality of openings overlapping the see-through area, and the The percentage value of the vertical projection area of the area occupied by the opening on one of the substrates and the vertical projection area of the area occupied by the perspective area on the one of the substrates is greater than 95%, wherein any two of them are arranged in one direction The distance between the adjacent openings in this direction is less than 9 micrometers; and a plurality of pixel structures overlap the openings respectively; and a control unit disposed on the carrier and electrically connected to the transmissive liquid crystal element. The eye training device according to claim 1, wherein the openings have a width in one direction, any two adjacent openings arranged in the direction have a distance in the direction, and the distance is The width ratio is between 0.01 and 0.03. The eye training device according to claim 1, wherein the transmissive liquid crystal element further includes an electrode layer disposed on one side of the liquid crystal layer, each of the pixel structures has a plurality of pixel electrodes, and the pixels The electrode is arranged on the other side of the liquid crystal layer. The eye training device according to claim 1, wherein the transmissive liquid crystal element further comprises: a plurality of first signal lines; and a plurality of second signal lines intersecting the first signal lines, wherein the pixels The structures respectively have an active device and a pixel electrode electrically connected to each other, and the active device is electrically connected to one of the first signal lines and one of the second signal lines. The eye training device according to claim 1, further comprising: an optical zoom element which is overlapped and arranged on the openings of the transmissive liquid crystal element. The eyeball training device according to claim 1, wherein the shading pattern is a composite structure of a plurality of first signal lines and a plurality of second signal lines, the first signal lines intersect with the second signal lines, and the pass The transmissive liquid crystal element further includes an insulating layer disposed between the first signal lines and the second signal lines. The eyeball training device according to claim 1, wherein the transmissive liquid crystal element further comprises: a quarter-wave plate which is overlapped and arranged on the polarizers, and one of the polarizers is located on the quarter-wave plate. Between a wave plate and the liquid crystal layer. The eye training device according to claim 1, wherein the material of the substrates includes polyimide or polyethylene terephthalate. The eye training device according to claim 1, wherein the carrier is a spectacle frame.

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