CN103713419B - A kind of display system - Google Patents

Abstract

The invention discloses a display system, comprising: a liquid crystal panel, the liquid crystal panel has a thin film transistor TFT array substrate, a color filter substrate, and a liquid crystal layer located between the TFT array substrate and the color filter substrate, the TFT array substrate The side facing away from the liquid crystal layer has a lower polarizer; two contact lenses, each contact lens has an upper polarizer. The contact lenses are directly worn in the user's eyes. Even if myopia and presbyopia wear corrective glasses during use, the surrounding people look normal. There is no need to wear two frames, which improves the naturalness of the user's viewing, and further The anti-peeping effect of the display device is improved. Therefore, the display system provided by the present invention can improve the naturalness when used by myopia and presbyopia patients, and has a high anti-peeping effect.

Description

a display system

technical field

The invention relates to the field of display technology, in particular to a display system.

Background technique

In the field of display technology, in order to meet the needs of users for confidential display, generally only one polarizer is set in the liquid crystal display device, and the other polarizer is set on a special glasses. When watching, people who do not use the special glasses The display content on the display device cannot be seen, and only the user wearing the special glasses can watch the display screen. Such a display system has good confidentiality and brings great privacy protection to the user.

However, for myopia patients or presbyopia patients, corrective glasses need to be worn in daily life, and a pair of above-mentioned special glasses need to be worn at the same time when confidential display is required to read the confidentially displayed information in the display device. Myopia and presbyopia patients bring great inconvenience and burden, and will cause everyone's doubts and awareness, so that the display system loses its proper anti-peeping effect.

Therefore, how to provide a display system that can improve the naturalness of use by myopia and presbyopia patients to improve the anti-peeping effect is one of the technical problems urgently needed to be solved by those skilled in the art.

Contents of the invention

The invention provides a display system, which can improve the naturalness of use by myopia and presbyopia patients, and has a high anti-peeping effect.

To achieve the above object, the present invention provides the following technical solutions:

A display system comprising:

A liquid crystal panel, the liquid crystal panel has a thin film transistor TFT array substrate, a color filter substrate, and a liquid crystal layer located between the TFT array substrate and the color filter substrate, and the side of the TFT array substrate away from the liquid crystal layer has a downwardly polarized light piece;

Two contact lenses, each contact lens having an upper polarizing component.

In the above display system, the liquid crystal panel only has a lower polarizer on the side of the TFT array substrate away from the liquid crystal layer, and the light becomes polarized light after passing through the lower polarizer, and remains polarized light after passing through the liquid crystal panel. The information contained in the emitted light cannot be recognized under the naked eye; and the contact lens in the above display system is equipped with an upper polarizing component, and the user's left and right eyes can only see the liquid crystal by wearing the corresponding contact lens. The information contained in the light emitted by the panel is identified; the contact lens is worn directly in the user's eye, even if the myopia and presbyopia wear corrective glasses during use, the surrounding people look normal, and there is no need to wear two frames. The naturalness when the user watches is improved, and the anti-peeping effect of the display device is further improved.

Therefore, the display system provided by the present invention can improve the naturalness when used by myopia and presbyopia patients, and has a high anti-peeping effect.

Preferably, in each contact lens, the upper polarizing component includes a polarizing film made of flexible biological material.

The polarizing film prepared by the flexible biological material can be well fused with the human eye, reducing the damage to the human eye caused by wearing the above-mentioned contact lens.

Preferably, the polarizing film has a concave lens structure or a convex lens structure. When the above-mentioned polarizing film has a concave lens structure or a convex lens structure, the polarizing film may have a myopia correction function, or a hyperopia correction function such as presbyopia, so that the polarizing film has the function of myopia glasses or hyperopia glasses.

Preferably, the contact lens further includes a flexible base, the polarizing film is superimposed on the flexible base, and the polarizing film is located on the pupil covering part of the flexible base.

Preferably, the flexible substrate has a concave lens structure or a convex lens structure. The flexible base has a concave lens structure or a convex lens structure, so that the contact lens can function as myopia glasses or hyperopia glasses.

Preferably, the polarizing film is located on the light incident side of the flexible substrate.

Preferably, in the liquid crystal panel, the side of the liquid crystal layer away from the TFT array substrate has a quarter-wavelength plate, and the fast axis of the quarter-wavelength plate in the liquid crystal panel is aligned with the lower polarizer. The polarizing axes of the sheets form a preset angle, and the preset angle is greater than or equal to 0 degrees and less than or equal to 90 degrees;

The upper polarizing part also includes a quarter-wavelength plate located on the light-incident side of the polarizing film, and the fast axis of the quarter-wavelength plate in the upper polarizing part and the polarizing axis of the polarizing film The formed angle is equal to the preset angle, or the sum thereof is 90 degrees.

The characteristics of the quarter-wavelength plate are: when the polarization direction of the linearly polarized light incident on the quarter-wavelength plate is consistent with the fast axis or slow axis direction of the quarter-wavelength plate, the linearly polarized light passes through the four-wavelength plate. After the quarter-wavelength plate is still linearly polarized light; when the polarization direction of the incident linearly polarized light of the quarter-wavelength plate is 45 degrees to the direction of the fast axis or slow axis of the quarter-wavelength plate, the Linearly polarized light is converted into circularly polarized light; when the polarization direction of the linearly polarized light incident on the quarter-wavelength plate is at other angles to the direction of the fast axis or slow axis of the quarter-wavelength plate, the linearly polarized light passes through the four Converted to elliptically polarized light after a one-wavelength plate.

A predetermined angle is formed between the fast axis of the quarter-wavelength plate and the polarizing axis of the lower polarizer; wherein,

When the above-mentioned preset angle is 90 degrees or 0 degrees, when the linearly polarized light passing through the lower polarizer passes through the liquid crystal layer, its polarization direction is rotated by 90 degrees or 0 degrees, which is different from the fast axis of the quarter-wavelength plate. The included angle is 0 degrees or 90 degrees, therefore, the light passing through the quarter-wavelength plate is still linearly polarized; at this time, the distance between the fast axis of the quarter-wavelength plate and the polarization axis of the polarizing film in the contact lens The included angle between them is 0 degree or 90 degree, when the polarizing axis of the polarizing film and the polarizing axis of the lower polarizer are perpendicular or parallel to each other, the picture of the liquid crystal panel can be displayed normally through the contact lens.

When the above preset angle is 45 degrees, when the linearly polarized light passing through the lower polarizer passes through the liquid crystal layer, its polarization direction is rotated by 90 degrees or 0 degrees, and the included angle with the fast axis of the quarter-wavelength plate is 45 degrees, therefore, the light passing through the quarter-wavelength plate is circularly polarized light; at this time, the angle between the fast axis of the quarter-wavelength plate in the contact lens and the polarization axis of the polarizing film is 45 degrees , when the angle between the polarization axis of the polarizing film in the contact lens and the polarization axis of the lower polarizer in the liquid crystal panel is any value, the picture of the liquid crystal panel can be displayed normally through the contact lens.

When the aforementioned predetermined angle is other acute angles, when the linearly polarized light passing through the lower polarizer passes through the liquid crystal layer, its polarization direction is rotated by 90 degrees or 0 degrees, and the included angle with the fast axis of the quarter-wavelength plate is Acute angle, and not 45 degrees, therefore, the light passing through the quarter-wavelength plate is elliptically polarized light; if the fast axis of the quarter-wavelength plate in the contact lens and the polarization axis of the polarizing film If the angle is equal to the preset angle above, it can be displayed normally when the fast axes of the two quarter-wave plates are perpendicular; if the fast axis of the quarter-wave plates in the contact lens and the polarizing film If the sum of the angle and the preset angle is 90 degrees, it can be displayed normally when the fast axes of the two quarter-wavelength plates are parallel.

Preferably, the preset angle is 45 degrees.

Preferably, a signal transmitter is also included, and the polarizing film includes:

LCD box body;

a liquid crystal layer doped with dichroic dye molecules located in the liquid crystal cell;

A driving electrode arranged on the liquid crystal cell body to drive the liquid crystal layer;

a power control module electrically connected to the driving electrodes;

The signal receiver is connected with the signal transmitter and the power control module for signal connection, and controls the power supply between the power control module and the driving electrodes according to the signal transmitted by the signal transmitter.

In the above display system, the upper polarizing component in the contact lens can be switched between the transparent state and the polarized state, thereby improving the flexibility of the user during use.

Preferably, in order to ensure sufficient power in the contact lens, the power control module includes a solar battery.

Description of drawings

Fig. 1 is a schematic diagram of the display principle of the display system provided by the embodiment of the present invention;

2 is a schematic diagram of a polarizing film on the light-emitting side of a flexible substrate in a contact lens provided by an embodiment of the present invention;

3 is a schematic diagram of a polarizing film on the light-incident side of a flexible substrate in a contact lens provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of the display principle when both the liquid crystal panel and the contact lens are equipped with a quarter-wavelength sheet in the display system provided by the embodiment of the present invention;

5 is a schematic diagram of the principle structure when the polarizing film on the contact lens in the display system provided by the embodiment of the present invention is a switchable polarizing film;

FIG. 6 is a schematic diagram of the control principle of the contact lens shown in FIG. 5 .

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1, the display system provided by the embodiment of the present invention includes:

A liquid crystal panel, the liquid crystal panel has a thin film transistor TFT array substrate, a color filter substrate, and a liquid crystal layer 2 located between the TFT array substrate and the color filter substrate, and the side of the TFT array substrate facing away from the liquid crystal layer 2 has a lower polarizer 1;

Two contact lenses 3 each having an upper polarizing component.

As shown in Figure 1, the area A and area B shown in Figure 1 are bright and dark respectively. In the above display system, the liquid crystal panel has a lower polarizer only on the side of the TFT array substrate away from the liquid crystal layer 2 1. The light becomes polarized light after passing through the lower polarizer 1, and it is still polarized light after passing through the liquid crystal panel, such as the light in area A and area B, the information contained in the light emitted by the liquid crystal panel cannot be read by the naked eye identification; and the contact lens 3 in the above-mentioned display system is provided with an upper polarizing component, and the user's left eye and right eye wear the corresponding contact lens 3 to identify the information contained in the light emitted by the liquid crystal panel; invisible The spectacle lenses 3 are directly worn in the eyes of the user. Even if the myopia and presbyopia wear corrective glasses during use, the surrounding people seem to be normal. There is no need to wear two spectacle frames, which improves the naturalness of the user's viewing. The anti-peeping effect of the display device is improved.

Therefore, the display system provided by the present invention can improve the naturalness when used by myopia and presbyopia patients, and has a high anti-peeping effect.

In a preferred embodiment, in each contact lens 3, the upper polarizing component includes a polarizing film made of flexible biomaterials.

The polarizing film prepared by the flexible biological material can be well fused with the human eye, reducing the damage to the human eye caused by wearing the above-mentioned contact lens.

In a preferred embodiment, the polarizing film has a concave lens structure or a convex lens structure. When the above-mentioned polarizing film has a concave lens structure or a convex lens structure, the polarizing film may have a myopia correction function, or a hyperopia correction function such as presbyopia, so that the polarizing film has the function of myopia glasses or hyperopia glasses.

Of course, in order to ensure the stability of the polarizing film in the contact lens 3 when worn, as shown in Figure 2 and Figure 3, in a preferred embodiment, the contact lens 3 also includes a flexible substrate 32, the polarizing film 31 and the flexible The bases 32 are stacked, and the polarizing film 31 is located on the pupil covering portion of the flexible base 32 . The flexible base 32 can support the polarizing film 31, thereby ensuring the stability of the polarizing film 31 position when the contact lens is worn.

Preferably, in the above-mentioned contact lens, the flexible base 32 has a concave lens structure or a convex lens structure. The flexible base 32 has a concave lens structure or a convex lens structure, so that the contact lens 3 can function as myopia glasses or hyperopia glasses.

Of course, in the above-mentioned embodiment, between the polarizing film 31 and the flexible substrate 32, the polarizing film 31 can be located on the light-emitting side of the flexible substrate 32, as shown in FIG. 2; The technology of contact lenses such as hyperopia is very mature. Therefore, in a preferred embodiment, the polarizing film 31 is located on the light incident side of the flexible substrate 32, as shown in FIG. 3, to improve the compatibility between the contact lens 3 and the human eye.

Please refer to Fig. 4, in a preferred implementation manner, in the liquid crystal panel of the display system, the side of the liquid crystal layer 2 away from the TFT array substrate has a quarter-wavelength plate 4, and the quarter-wavelength plate 4 in the liquid crystal panel A predetermined angle is formed between the fast axis and the polarization axis of the lower polarizer 1, and the predetermined angle is greater than or equal to 0 degrees and less than or equal to 90 degrees;

Simultaneously, the upper polarizing part of each contact lens 3 also includes a quarter-wavelength plate 33 positioned at the light-incident side of the polarizing film 31, and the fast axis of the quarter-wavelength plate 33 in the upper polarizing part and the polarizing film 31 The angle formed between the polarizing axes is equal to the preset angle, or the sum is 90 degrees.

The characteristics of the quarter-wavelength plate are: when the polarization direction of the linearly polarized light incident on the quarter-wavelength plate is consistent with the fast axis or slow axis direction of the quarter-wavelength plate, the linearly polarized light passes through the four-wavelength plate. After the quarter-wavelength plate is still linearly polarized light; when the polarization direction of the incident linearly polarized light of the quarter-wavelength plate is 45 degrees to the direction of the fast axis or slow axis of the quarter-wavelength plate, the Linearly polarized light is converted into circularly polarized light; when the polarization direction of the linearly polarized light incident on the quarter-wavelength plate is at other angles to the direction of the fast axis or slow axis of the quarter-wavelength plate, the linearly polarized light passes through the four Converted to elliptically polarized light after a one-wavelength plate.

In the above-mentioned liquid crystal panel, a preset angle is formed between the fast axis of the quarter-wavelength plate 4 and the polarization axis of the lower polarizer 1; wherein,

When the above-mentioned predetermined angle is 90 degrees or 0 degrees, when the linearly polarized light passing through the lower polarizer 1 passes through the liquid crystal layer 2, its polarization direction is rotated by 90 degrees or 0 degrees, which is different from that of the quarter-wavelength plate 4. The included angle of the fast axis is 0 degrees or 90 degrees, therefore, the light passing through the quarter-wavelength plate 4 is still linearly polarized light; at this time, the fast axis of the quarter-wavelength plate 33 in the contact lens 3 and the The included angle between the polarizing axes of the polarizing film 31 is 0 degree or 90 degrees. When the polarizing axis of the polarizing film 31 and the polarizing axis of the lower polarizer 1 are perpendicular or parallel to each other, the liquid crystal can be displayed normally through the contact lens 3. panel screen.

When the above-mentioned predetermined angle is 45 degrees, when the linearly polarized light passing through the lower polarizer 1 passes through the liquid crystal layer 2, its polarization direction is rotated by 90 degrees or 0 degrees, which is different from the fast axis of the quarter-wavelength plate 4. The included angle is 45 degrees, therefore, the light passing through the quarter-wavelength plate 4 is circularly polarized light; The angle between them is 45 degrees, and when the angle between the polarization axis of the polarizing film 31 in the contact lens 3 and the polarization axis of the lower polarizer 1 in the liquid crystal panel is any value, the liquid crystal panel can be displayed normally through the contact lens 3 screen.

When the above-mentioned predetermined angle is other acute angles, when the linearly polarized light passing through the lower polarizer 1 passes through the liquid crystal layer 2, its polarization direction is rotated by 90 degrees or 0 degrees, which is different from the fast axis of the quarter-wavelength plate 4. The included angle is an acute angle and is not 45 degrees. Therefore, the light passing through the quarter-wavelength plate 4 is elliptically polarized light; The included angle between the polarizing axes of the contact lens 3 is equal to the above-mentioned predetermined angle, then, when the fast axis of the quarter-wavelength plate 4 and the quarter-wavelength plate 33 is vertical, it can be displayed normally; The sum of the included angle between the fast axis of the quarter-wavelength plate 33 and the polarizing film 31 and the above-mentioned predetermined angle is 90 degrees, then, when the fast axis of the quarter-wavelength plate 4 and the quarter-wavelength plate 33 It can be displayed normally when parallel.

Preferably, the preset angle between the fast axis of the quarter-wavelength plate 4 and the polarization axis of the lower polarizer 1 is 45 degrees.

As shown in Figure 5 and Figure 6, preferably, the above-mentioned display system further includes a signal transmitter 5, and the polarizing film includes:

Liquid crystal box body 321;

A liquid crystal layer doped with dichroic dye molecules located in the liquid crystal cell body 321;

A driving electrode 324 arranged on the liquid crystal cell body 321 to drive the liquid crystal layer;

A power control module 323 electrically connected to the driving electrode 324;

The signal receiver 322 is connected with the signal transmitter 5 and the power control module 323 , and controls the power supply between the power control module 323 and the driving electrode 324 according to the signal transmitted by the signal transmitter 5 .

The user transmits a control signal through the signal transmitter 5, and the signal receiver 322 controls the power supply control module to provide a corresponding voltage to the drive electrode 324 after receiving the control signal, and then controls the liquid crystal molecules in the liquid crystal layer in the liquid crystal box body 321 through the drive electrode 324. Alignment, the dichroic dye molecules are driven by the liquid crystal molecules to adjust the alignment direction, and then control the polarizing film 31 to switch between the transparent state and the polarized state.

In the above display system, the upper polarizing component in the contact lens can be switched between the transparent state and the polarized state, thereby improving the flexibility of the user during use.

In a preferred embodiment, in order to ensure sufficient power in the contact lens 3, the power control module 323 includes a solar cell.

Of course, on the basis of the above-mentioned embodiments, the contact lens 3 of the above-mentioned display system may also have a lubricating layer to improve the user's comfort when wearing the above-mentioned contact lens; The service life of above-mentioned contact lens 3 etc.

Furthermore, in the contact lens, electronic components such as the signal receiver, power control module, and driving electrodes are all flexible and airtightly packaged with high-density oxygen- and water-blocking safe biomaterials, but other areas are made of oxygen-permeable and water-permeable materials to protect the user. eye health.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (8)

1. A display system, comprising:

the liquid crystal display panel is provided with a Thin Film Transistor (TFT) array substrate, a color film substrate and a liquid crystal layer positioned between the TFT array substrate and the color film substrate, and one side of the TFT array substrate, which is far away from the liquid crystal layer, is provided with a lower polarizer;

two contact lenses, each contact lens having an upper polarizing component;

in each of the contact lenses, the upper polarization member includes a polarization film made of a flexible biomaterial and a signal transmitter, the polarization film including:

a liquid crystal box body;

the liquid crystal layer is positioned in the liquid crystal box body and is doped with dichroic dye molecules;

a driving electrode disposed on the liquid crystal cell body to drive the liquid crystal layer;

the power supply control module is electrically connected with the driving electrode;

the signal receiver is in signal connection with the signal transmitter and the power control module and controls the power supply between the power control module and the driving electrode to be switched on and off according to the signal transmitted by the signal transmitter;

in the polarizing film, the signal receiver, the power supply control module and the driving electrode are flexibly sealed and packaged by adopting high-density oxygen-blocking and water-blocking safe biological materials, and other areas of the polarizing film adopt oxygen-permeable and water-permeable materials.

2. The display system of claim 1, wherein the polarizing film has a concave lens structure or a convex lens structure.

3. The display system of claim 1, wherein the contact lens further comprises a flexible substrate, the polarizing film is superimposed with the flexible substrate, and the polarizing film is located on a pupil-covering portion of the flexible substrate.

4. The display system according to claim 3, wherein the flexible substrate has a concave lens structure or a convex lens structure.

5. The display system of claim 4, wherein the polarizing film is located on a light entry side of the flexible substrate.

6. The display system according to claim 1, wherein the liquid crystal panel has a quarter-wave plate on a side of the liquid crystal layer facing away from the TFT array substrate, and a fast axis of the quarter-wave plate in the liquid crystal panel forms a predetermined angle with a polarization axis of the lower polarizer, and the predetermined angle is greater than or equal to 0 degrees and less than or equal to 90 degrees;

the upper polarization component further comprises a quarter-wave plate positioned on the light incident side of the polarization film, and an angle formed between the fast axis of the quarter-wave plate in the upper polarization component and the polarization axis of the polarization film is equal to the preset angle or the sum of the angles is 90 degrees.

7. The display system of claim 6, wherein the predetermined angle is 45 degrees.

8. The display system of claim 1, wherein the power control module comprises a solar cell.