TW202211896A - 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

eye training device

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

After the start of the eyeball revolution, the replacement of old technology products with new ones has been accelerated. 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 integral 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 common eye training devices on the market currently use closed visual training (that is, the training content cannot be integrated with the surrounding environment), and the appearance volume is slightly bulky.

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

The eye training device of the present invention includes a carrier, a transmissive 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 a plurality of pixel structures. Two polarizers are respectively disposed on the substrates, and the substrates are located between the polarizers. The liquid crystal layer is disposed between these substrates. The shading pattern has a plurality of openings overlapping the see-through area, and the percentage value of the vertical projected area of the area occupied by the openings on one of the substrates and the vertical projected area of the area occupied by the see-through area on one of the substrates is greater than 95%. The pixel structures overlap the 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 eye training device is less than 9 microns in this direction.

In an embodiment of the present invention, the plurality of openings of the above-mentioned eye training device have widths in one direction respectively, 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 above-mentioned eye training device further includes an electrode layer disposed on one side of the liquid crystal layer. The plurality of pixel structures respectively have a plurality of pixel electrodes, and the pixel electrodes are disposed 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 eye training device further includes a plurality of first signal lines and a plurality of second signal lines. A plurality of second signal lines intersect the first signal lines. The plurality of pixel structures respectively have active elements and pixel electrodes electrically connected to each other, and the active elements 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 eye 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 eye 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 with 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 eye training device further comprises a quarter-wave plate, which is disposed on two polarizers overlappingly, and one of the polarizers is located at the quarter-wave between the plate and the liquid crystal layer.

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

In an embodiment of the present invention, the carrier of the above-mentioned eye 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 transmissive liquid crystal element is perpendicular to the projected 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-light-transmitting areas between the plurality of pixel structures can be significantly reduced, which helps to improve the user's interactive experience with the surrounding environment during eye training, and enhances visual comfort.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

The foregoing and other technical contents, 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, such as: up, down, left, right, front or rear, etc., are only for referring to the directions of the attached drawings. Accordingly, the directional terms used are illustrative and not limiting of 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 view of the eyeball training device of FIG. 1 . FIG. 3 is an enlarged schematic view of a partial region of the transmissive liquid crystal element of FIG. 2 . FIG. 4 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 3 . FIG. 3 corresponds to the local area I of FIG. 2 . Fig. 4 corresponds to section line A-A' of Fig. 3 . 5A and 5B are schematic rear views of the eye training device of FIG. 1 in an operation mode. FIG. 6 is a schematic rear view of the eye training device of FIG. 1 in another operation mode. 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 in FIG. 4 . Figure 116 is shown.

Referring to FIGS. 1 to 4 , the eye 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 eye training device 10 may be a wearable device, such as smart glasses. More specifically, the carrier 100 may be a frame for wearing on the user's head. The frame has an opening 100a and an opening 100b corresponding to the eyes of the user, and the two openings can define the two perspective areas STR of the carrier 100 . Correspondingly, the number of the transmissive liquid crystal elements 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 in the openings 100a and 100a of the carrier 100 corresponding to the user's right eye. Inside the opening 100b of the user's left eye.

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

Further, 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 thinning of the transmissive liquid crystal element 110 , the materials 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 thereto, and 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 can 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 (eg, the direction Z), and has a plurality of openings OP overlapping the see-through area STR. The openings OP can define a plurality of pixel regions of the transmissive liquid crystal element 110 , and the 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 disposed on the substrate 112 , and the first signal line SL1 and the second signal line SL2 are disposed on the substrate 111 , but not limited thereto. In other embodiments, the light-shielding pattern BM, the first signal line SL1 and the second signal line SL2 may also be disposed on the same substrate.

In this embodiment, the pixel structure PX includes an active element T and a pixel electrode PE that are electrically connected to each other. The active element 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 element T are respectively electrically connected to the first signal line SL1 and the second signal line SL2. That is to say, the transmissive liquid crystal element 110 of the present embodiment is an electronically controlled liquid crystal cell having an active matrix, but the invention is not limited thereto. 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 flattening layer 114 is provided between the pixel electrode PE and the second signal line SL2.

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

For example, the openings OP of the light shielding pattern BM have widths W1 and W2 in the direction X and direction Y respectively, and any two adjacent openings OP arranged in the direction X have a distance S1 in the direction X and a distance S1 in the direction Y Any two openings OP that are arranged and adjacent to each other have an interval S2 in the direction Y. As shown in FIG. 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 may 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 is greater than 500 microns.

Further, 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 is opposite to the pixel electrode PE located 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 from each other, and the electrode layer EL is a whole-surface electrode (ie, an unpatterned conductive layer), but this is not the case in the present invention. limit. In order to achieve a better perspective 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, aluminum Tin oxides, aluminum zinc oxides, or other suitable oxides, very thin metals, carbon nanotubes, graphene, or a stack of at least two of the above.

Specifically, the liquid crystal layer LCL of the transmissive liquid crystal element 110 may adopt a twisted nematic liquid crystal (TN-LC) mode, a super twisted nematic liquid crystal (STN-LC) mode ) mode, vertical alignment liquid crystal (Vertical Alignment Liquid Crystal, VA-LC) mode, or electronically controlled birefringence (Electrically controlled birefringence, ECB) mode to operate, but not limited thereto.

In order to prevent the user from being unable to receive polarized light (eg, linearly polarized light) from the outside world or other display devices through the eye training device 10 , the transmissive liquid crystal element 110 may optionally include a quarter-wave plate 116 . The quarter-wave plate 116 is overlapped 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 eye training device 10 further includes a soft circuit board 120 and a control unit 200 . The flexible circuit 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 flexible circuit board 120 . The circuit flexible board 120 here is, for example, a chip on film (COF) or a transmission circuit board, but not limited thereto. 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 connected device) via wireless communication (such as Bluetooth, near field communication, or wireless hotspot). exchange of signals. However, in other embodiments, the eye training device can also be connected to an external device via a physical wire for signal transmission. Of course, the eye training device 10 may also be provided with a storage element for storing the execution program and related setting parameters. That is, the eye training device 10 can also be operated independently.

Since the plurality of pixel structures PX of the transmissive liquid crystal element 110 can independently control the light transmittance of the above-mentioned plurality of pixel regions (that is, the regions defined by the plurality of openings OP), at different positions in the see-through region STR Light spots with different sizes or light intensities can be formed to guide or train eye movements. Two operating modes of the eye training device 10 will be exemplarily explained below.

Referring to FIGS. 5A and 5B , when the eyeball training device 10 operates in the guide mode of eyeball movement, the transmissive liquid crystal element 110R switches most of the see-through area STR to be opaque, while at the predetermined position The pixel area is switched to a predetermined transmittance to present a guide index (as shown in the cross mark in FIG. 5A ). As shown in FIG. 5A , when a guide indicator appears in the upper left corner of the see-through area STR, the user can be attracted to turn the right eyeball so that the attention point moves toward the first position P1 . Next, the guiding index is set on the right side of the see-through area STR, and the user turns the right eyeball again to move the focus point toward the second position P2, as shown in FIG. 5B . The eyeballs are driven to rotate correspondingly by guiding the index to move between multiple positions in the perspective area STR, so as to achieve the purpose of eyeball training. It should be noted that the transmissive liquid crystal element 110L corresponding to the user's left eye also performs eyeball training in a similar manner, which will not be repeated here.

On the other hand, the eye training device 10 can also be used for vision training of amblyopia patients. For example, when the vision of the patient's left eye is worse than that of the right eye, the eye training device 10 can be adjusted to correspond to multiple pixel areas of the transmissive liquid crystal element 110L of the patient's left eye (ie, multiple pixels overlapping the see-through area STRb). The regions defined by the openings OP) have high transmittance, and correspond to the multiple pixel regions of the transmissive liquid crystal element 110R of the patient's right eye (that is, the regions defined by the multiple openings OP overlapping the see-through region STRa) The transmittance decreases from the center of the see-through area STRa toward the periphery, as shown in FIG. 6 . In this way, while the patient is training the vision of the left eye, the vision of the right eye can be reduced to a predetermined value, which helps to relieve the discomfort of the patient during the training process and increases the flexibility of the design of the treatment course.

Hereinafter, other embodiments will be listed to describe the present 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.

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 . Referring to FIGS. 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 may 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 in 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 distance 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 may 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 distance S1' between any two adjacent openings OP' arranged in the direction X, and the distance between the two adjacent second signal lines SL2 The distance may define the width W1' of the opening OP' in the direction X.

In order for the transmissive liquid crystal element 110 to have a higher aperture ratio, for example, the area occupied by the openings OP' is between the vertical projected area of the substrate 111 and the see-through area STR (as shown in FIG. 1 and FIG. 2 ). The percentage value of the area occupying the vertical projected 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' may 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' is greater than 500 microns. Accordingly, the visibility of the non-light-transmitting area (ie, the area occupied by the signal lines) between the pixel structures PX can be significantly reduced, which is helpful 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 protruding portions (not shown), so as to shield the semiconductor layer of the active element T from the long-term illumination of the external light source. Deterioration occurs, affecting the electrical properties of the active element T.

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 that the number of quarter-wave plates of the transmissive liquid crystal element 110 is two, respectively Quarter wave plate 116 and quarter wave plate 117 . Different from the transmissive liquid crystal element 110 of the first embodiment, the transmissive liquid crystal element 110B of the present 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. Referring to FIG. 10 , the difference between the eye training device 20 of this embodiment and the eye training device 10 of FIG. 1 is that the eye training device 20 further includes an optical zoom element 150 overlapping a plurality of openings OP of the transmissive liquid crystal element 110 . 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 not limited thereto. 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 focusing capability of the eye training device 20 can be increased through the arrangement of the optical zoom element 150 . For example, when the user is a (pseudo-) myopic patient (eg, myopia is two hundred degrees), the diopter of the optical zoom element 150 can be adjusted to compensate for part of the user's myopia (eg, 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.

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 the present 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 of electricity Control the 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 in FIG. 3 are respectively formed by the first strip electrode SE1 Replaced with the second strip electrode SE2. That is to say, the plurality of first strip 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 electrodes SE2 are arranged along the direction X and extend in the direction Y . It is worth noting that a plurality of intersections (or overlapping positions) of the first strip electrodes SE1 and the second strip electrodes SE2 can define a plurality of pixel areas PA of the transmissive liquid crystal element 110C, and these strips The portions of the shape electrodes overlapping the pixel areas PA can form a plurality of groups of pixel electrodes corresponding to the pixel areas PA.

The strip electrodes of the transmissive liquid crystal element 110C are, for example, light transmissive electrodes, and the material of the light transmissive electrodes includes indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, or other suitable materials Oxides, very thin metals, carbon nanotubes, graphene, or a stack of at least two of the above.

To sum up, 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 transmissive liquid crystal element is in the vertical projection area of the substrate and the area occupied by the see-through area is in the substrate. The percentage value of the vertical projected area is greater than 95%. Accordingly, the visibility of the non-light-transmitting areas between the plurality of pixel structures can be significantly reduced, which helps to improve the user's interactive experience with the surrounding environment during eye training, and enhances visual comfort.

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

10, 20: Eye training device 100: Carrier 100a, 100b: Opening 110, 110A, 110B, 110C, 110R, 110L: Transmissive liquid crystal elements 111, 112: Substrate 113: Insulation layer 114: Flat Layer 115: Overlay 116, 117: Quarter wave plate 120: circuit soft board 150: Optical zoom element 200: Control Unit 300: External device BM: Blackout 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: The second signal line STR, STRa, STRb: Perspective area T: Active element W1, W2, W1', W2': width X, Y, Z: direction I: local area A-A', B-B', C-C': section lines

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 view of the eyeball training device of FIG. 1 . FIG. 3 is an enlarged schematic view of a partial region of the transmissive liquid crystal element of FIG. 2 . FIG. 4 is a schematic cross-sectional view of the transmissive liquid crystal element of FIG. 3 . 5A and 5B are schematic rear views of the eye training device of FIG. 1 in an operation mode. FIG. 6 is a schematic rear view of the eye training device of FIG. 1 in another operation mode. 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 . 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. 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: Eye training device

100: Carrier

100b: Opening

110, 110L: Transmissive liquid crystal element

111, 112: Substrate

120: circuit soft board

200: Control Unit

300: External device

BM: Blackout Pattern

OP: opening

STR: Perspective area

X, Y, Z: direction

I: local area

Claims (10)

An eye training device, comprising: a carrier having a see-through area; A transmissive liquid crystal element disposed on the carrier and overlapping the see-through area, the transmissive liquid crystal element comprising: two substrates; two polarizers, respectively disposed on the substrates, and the substrates are located between the polarizers; a liquid crystal layer disposed between the substrates; a light-shielding pattern having a plurality of openings overlapping the see-through area, and the vertical projection area of the area occupied by the openings on one of the substrates and the area occupied by the see-through area on the one of the substrates The percentage value of the vertical projected area is greater than 95%; and a plurality of pixel structures respectively overlapping the openings; and A control unit is arranged on the carrier and is electrically connected to the transmissive liquid crystal element. The eyeball training device according to claim 1, wherein the distance between any two adjacent openings arranged in a direction is less than 9 microns in the direction. The eyeball training device according to claim 1, wherein the openings respectively have a width in one direction, and any two adjacent openings arranged in the direction have a distance in the direction, and the distance and the distance The ratio of widths is between 0.01 and 0.03. The eye training device according to claim 1, wherein the transmissive liquid crystal element further comprises 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 structures The electrodes are arranged on the other side of the liquid crystal layer. The eyeball training device as claimed in 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 pixel structures respectively have an active element and a pixel electrode electrically connected to each other, and the active element is electrically connected to the first signals one of the lines and one of the second signal lines. The eye training device according to claim 1, further comprising: An optical zoom element is overlapped and disposed on the openings of the transmissive liquid crystal element. The eye 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 passing through 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 as claimed in claim 1, wherein the transmissive liquid crystal element further comprises: A quarter-wave plate is overlapped on the polarizers, and one of the polarizers is located between the quarter-wave plate and the liquid crystal layer. The eye training device of claim 1, wherein the substrates are made of polyimide or polyethylene terephthalate. The eyeball training device according to claim 1, wherein the carrier is a mirror frame.

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