Light-scattering LCD that can be arranged in an optical lens barrel, manufacturing method and application

Abstract

A light-scattering type LCD that can be disposed in an optical lens barrel, a manufacturing method thereof, and an application. The LCD includes a first glass sheet and a second glass sheet. A liquid crystal display layer is provided between the first glass sheet and the second glass sheet. The liquid crystal display layer is composed of two parts. One part of the liquid crystal is transparent when no voltage is applied and is in a scattering state when voltage is applied, and is used to display dynamic information. The other part of the liquid crystal is always in a scattering state regardless of whether voltage is applied or not, and the liquid crystal that is always in a scattering state presents a predetermined fixed pattern, and the fixed pattern is configured in the liquid crystal that is transparent when no power is applied. When the fixed pattern is a cross scale line, the present invention has the advantages that there is no problem of cross scale line alignment error, and the electronic reticle can also present a cross scale line during a power outage.

Description

Technical Field

[0001] The present invention relates to a liquid crystal display, in particular to a light-scattering LCD that can be disposed in an optical barrel, a manufacturing method, and an application thereof. Background Art

[0002] Chinese Patent Document CN211318874U discloses a display with an optical reticle and its optical barrel. The display includes a first glass sheet and a second glass sheet, and a liquid crystal display layer is provided between the first glass sheet and the second glass sheet. The liquid crystal display layer is used to display data information. A cross scale line is provided on one side of the first glass sheet or the second glass sheet close to the liquid crystal display layer, or on one side of the first glass sheet or the second glass sheet far from the liquid crystal display layer. When light passes through the cross scale line, the light passing through the cross scale line is substantially absorbed, forming a color close to black. Although this display with an optical reticle has cross scale lines, there are many processes for such cross scale lines, requiring investment in lithography equipment, and there are errors in the alignment of the cross scale lines on the front and rear substrates. In addition, there is a large difference between the color of the cross scale line and the color of other contents displayed on the display, affecting the visual effect.

[0003] Chinese Patent Document CN210442575U discloses a high transmittance electronic reticle suitable for use in a sight. The electronic reticle is an LCD electronic reticle. The liquid crystal of the LCD electronic reticle is a mixture of a polymer material and a low molecular liquid crystal, which is in a transparent state when not powered on and in a light-scattering state when powered on. Among them, the light-scattering part is at least used to display the cross scale line of the reticle. This electronic reticle has the problem that when there is no power, the cross scale line of the reticle cannot be displayed. When it is used as the reticle in a sight, the sight cannot be used. Summary of the Invention

[0004] The object of the present invention is to provide a light-scattering LCD that can be disposed in an optical barrel, which has no alignment error of cross scale lines and can present cross scale lines even when the power is off for the electronic reticle.

[0005] The second object of the present invention is to provide a manufacturing method of a light-scattering LCD that can be disposed in an optical barrel.

[0006] The third object of the present invention is to provide an application of a light-scattering LCD that can be disposed in an optical barrel.

[0007] In order to achieve the above objects, the present invention adopts the following technical solutions:

[0008] Provided is a light-scattering LCD that can be disposed inside an optical lens barrel, including a first glass sheet and a second glass sheet. A liquid crystal display layer is provided between the first glass sheet and the second glass sheet. The liquid crystal display layer is composed of two parts. One part of the liquid crystal is transparent when no voltage is applied and is in a scattering state when voltage is applied, for displaying dynamic information. The other part of the liquid crystal is always in a scattering state whether voltage is applied or not, and the liquid crystal in the always-scattering state presents a predetermined fixed pattern, and the fixed pattern is configured among the liquid crystal that is transparent when no voltage is applied.

[0009] As an improvement to the present invention, the fixed pattern is a cross scale line.

[0010] As an improvement to the present invention, a first anti-reflection film is provided on the outer surface of the first glass sheet, and / or a second anti-reflection film is provided on the outer surface of the second glass sheet.

[0011] As an improvement to the present invention, the fixed pattern is obtained by UV curing.

[0012] As an improvement to the present invention, the light-scattering LCD that can be disposed inside an optical lens barrel is a PN or PDLC liquid crystal display screen.

[0013] The present invention also provides a manufacturing method of the above-mentioned light-scattering LCD that can be disposed inside an optical lens barrel, including the following steps:

[0014] S11. Prepare a liquid crystal cell, inject liquid crystal containing a UV curing material into the liquid crystal cell, and seal it to make a transparent liquid crystal display screen;

[0015] S12. Apply voltage to all electrodes of the liquid crystal display screen, so that the liquid crystal in all electrode parts inside the liquid crystal display screen is in a scattering state;

[0016] S13. While keeping the voltage applied, irradiate the liquid crystal in a predetermined part inside the liquid crystal display screen with UV light that exactly matches the fixed pattern, so that the irradiated liquid crystal is cured to form a fixed pattern, and the fixed pattern always remains in a scattering state after power-off;

[0017] S14. Remove the voltage, and then irradiate the remaining liquid crystal with UV light, or irradiate all the liquid crystal of the liquid crystal display screen with UV light again, so that the remaining liquid crystal is cured to be in a transparent state.

[0018] The present invention also provides a manufacturing method of the above-mentioned light-scattering LCD that can be disposed inside an optical lens barrel, including the following steps:

[0019] S21. Prepare a liquid crystal cell, inject liquid crystal containing a UV curing material into the liquid crystal cell, and seal it to make a transparent liquid crystal display screen;

[0020] S22. Apply power to the electrodes in the liquid crystal display screen that need to form a fixed pattern, so that the liquid crystal in this part of the liquid crystal display screen is in a scattered state;

[0021] S23. While maintaining the power supply, irradiate all the liquid crystal of the liquid crystal display screen with UV light, so that the liquid crystal corresponding to the fixed pattern is cured to form a fixed pattern while maintaining the scattered state, and the fixed pattern always remains in a scattered state after power-off; and the remaining liquid crystal is cured into a transparent state while maintaining the transparent state.

[0022] The above-mentioned light-scattering type LCD that can be set in an optical lens barrel of the present invention is used on a microscope, a rangefinder, a gun sight, a camera or a telescope.

[0023] Since the liquid crystal display layer of the present invention is composed of two parts, one part of the liquid crystal is in a transparent state when not powered on and in a scattered state when powered on, and is used to display dynamic information; the other part of the liquid crystal is not controlled by external electricity and is always in a scattered state, and the liquid crystal that is always in a scattered state presents a predetermined fixed pattern, and the fixed pattern is configured in the liquid crystal that is in a transparent state when not powered on. When the fixed pattern is a cross scale line, the present invention has the advantages of no cross scale line alignment error and the electronic reticle can also present a cross scale line during a power outage. Description of the Drawings

[0024] Figure 1 is a schematic cross-sectional view of an embodiment of the present invention.

[0025] Figure 2 is Figure 1 the side structure schematic diagram of. Detailed Embodiments

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] The light-scattering type LCD that can be set in an optical lens barrel in the present invention includes two major categories of LCDs, namely PN (Polymer network) LCD and PD (Polymer Disperes) LCD; the liquid crystal materials used in the following embodiments are a mixture of high molecular materials and low molecular liquid crystals, which contain UV curable materials; among them, the high molecular materials can adopt a mixture of high molecular materials with models SZSP-018 and SZSP-200 produced by Shenzhen Saike Display Co., Ltd., and the low molecular liquid crystals can adopt a mixture of low molecular liquid crystals with models SZSL-030 and SZSL-100 produced by Shenzhen Saike Display Co., Ltd.

[0028] Please refer toFigure 1 and Figure 2 , Figure 1 and Figure 2 Disclosed is a light-scattering LCD that can be disposed in an optical lens barrel, including a first glass sheet 1 and a second glass sheet 2. A liquid crystal display layer 3 is provided between the first glass sheet 1 and the second glass sheet 2. The liquid crystal display layer 3 consists of two parts. One part of the liquid crystal 31 is transparent when no voltage is applied and is in a scattering state when a voltage is applied (see Figure 2 ), and is used to display dynamic information; the other part of the liquid crystal 32 is always in a scattering state whether a voltage is applied or not, and the liquid crystal that is always in a scattering state presents a predetermined fixed pattern, and the fixed pattern is configured in the liquid crystal that is transparent when no voltage is applied. The fixed pattern in this embodiment is a cross scale line.

[0029] Since the present invention adopts the above structure, the present invention has the advantages that there is no problem of cross scale line alignment error, and the electronic reticle can also present a cross scale line during a power outage.

[0030] Preferably, the absolute value of the difference between the light transmittance of the fixed pattern and the light transmittance of the dynamic information formed by scattering after power-on is less than or equal to 5%, generally less than or equal to 3%, or less than or equal to 4%. The smaller the difference, the better the visual effect for the user.

[0031] Preferably, the light transmittance of the fixed pattern is selected between greater than or equal to 90% and less than or equal to 98%. The higher the light transmittance of the fixed pattern, the darker the color of the fixed pattern and the better the effect.

[0032] Preferably, a first light antireflection film 41 is provided on the outer surface of the first glass sheet 1, and / or a second light antireflection film 42 is provided on the outer surface of the second glass sheet 2; after the first light antireflection film 41 is provided, the light transmittance of the present invention can be increased by 3% - 5%, and if the second light antireflection film 42 is further provided, the light transmittance of the present invention can be further increased by 1% - 3%.

[0033] Preferably, the fixed pattern is obtained by UV curing; the light-scattering LCD that can be disposed in the optical lens barrel can be a PN or PDLC liquid crystal display screen.

[0034] The present invention also provides a manufacturing method of the above-mentioned light-scattering LCD that can be disposed in an optical lens barrel, including the following steps: It should be noted that the preparation of the liquid crystal cell in the present invention is a prior art, mainly including disposing a first transparent electrode on the inner surface of the first glass sheet 1, and disposing a first vertical guiding layer on the first transparent electrode; disposing a second transparent electrode on the inner surface of the second glass sheet 2, and disposing a second vertical guiding layer on the second transparent electrode; disposing the surfaces where the vertical guiding layers of the first glass sheet 1 and the second glass sheet 2 face each other, and then forming the first glass sheet 1 and the second glass sheet 2 into a box shape through a peripheral fixing member, which is the liquid crystal cell.

[0035] S11. Prepare a liquid crystal cell, inject liquid crystal containing a UV curable material into the liquid crystal cell, and seal it to form a transparent liquid crystal screen.

[0036] S12. Apply voltage to all electrodes of the liquid crystal display screen to make the liquid crystal in all electrode parts in the liquid crystal display screen in a scattered state.

[0037] S13. While maintaining the applied voltage, irradiate the liquid crystal in a predetermined part in the liquid crystal display screen with UV light that exactly matches the fixed pattern, so that the irradiated liquid crystal is cured to form a fixed pattern, and the fixed pattern always remains in a scattered state after power-off; the fixed pattern is configured among the liquid crystal that is transparent when no voltage is applied.

[0038] S14. Remove the voltage, and then irradiate the remaining liquid crystal with UV light, or irradiate all the liquid crystal in the liquid crystal display screen with UV light, so that the remaining liquid crystal is cured into a transparent state; there are two ways for this step. One way is to only irradiate the remaining liquid crystal with UV light; the other way is to irradiate all the liquid crystal in the liquid crystal display screen with UV light. Since the fixed pattern part has been irradiated and cured previously, irradiating the fixed pattern part with UV light again has no effect on the fixed pattern part.

[0039] The present invention also provides a manufacturing method of the above-mentioned light-scattering LCD that can be disposed in an optical lens barrel, including the following steps:

[0040] S21. Prepare a liquid crystal cell, inject liquid crystal containing a UV curable material into the liquid crystal cell, and seal it to form a transparent liquid crystal screen.

[0041] S22. Apply voltage to the electrodes in the liquid crystal display screen where a fixed pattern needs to be formed to make the liquid crystal in this part in the liquid crystal display screen in a scattered state.

[0042] S23. While keeping the power on, irradiate all the liquid crystals of the liquid crystal display with UV light, so that the liquid crystals corresponding to the fixed pattern are cured to form a fixed pattern while remaining in a scattering state, and the fixed pattern always remains in a scattering state after power-off; while the remaining liquid crystals are cured to a transparent state while remaining in a transparent state.

[0043] In the use of this solution, a voltage can also be applied to the fixed pattern, which can reduce the light opacity of this part and increase the display contrast.

[0044] This method is simpler and easier to operate.

[0045] The above-mentioned light-scattering type LCD that can be set in the optical barrel of the present invention is used on a microscope, a rangefinder, a gun sight, a camera or a telescope.

[0046] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A light-scattering LCD that can be disposed within an optical lens barrel, comprising a first glass sheet (1) and a second glass sheet (2), with a liquid crystal display layer (3) provided between the first glass sheet (1) and the second glass sheet (2). Characterized in that: The liquid crystal display layer (3) consists of two parts. One part of the liquid crystal (31) is transparent when no voltage is applied and becomes scattering when voltage is applied, for displaying dynamic information; the other part of the liquid crystal (32) is always in a scattering state whether voltage is applied or not, and the liquid crystal in the always-scattering state presents a predetermined fixed pattern, and the fixed pattern is configured within the liquid crystal that is transparent when no voltage is applied. Inject liquid crystal containing UV curable material into the liquid crystal cell and seal it to form a transparent liquid crystal display screen. Apply voltage to the electrodes in the liquid crystal display screen that need to form the fixed pattern, so that the liquid crystal in this part of the liquid crystal display screen becomes scattering; while keeping the voltage applied, irradiate all the liquid crystal in the liquid crystal display screen with UV light, so that the liquid crystal corresponding to the fixed pattern is cured to form the fixed pattern while remaining in the scattering state, and the fixed pattern remains in the scattering state after power-off; and the remaining liquid crystal is cured to be in a transparent state while remaining in the transparent state. Alternatively, inject liquid crystal containing UV curable material into the liquid crystal cell and seal it to form a transparent liquid crystal display screen; apply voltage to all the electrodes of the liquid crystal display screen, so that the liquid crystal in all the electrode parts in the liquid crystal display screen becomes scattering; while keeping the voltage applied, irradiate the liquid crystal in a predetermined part of the liquid crystal display screen with UV light that exactly matches the fixed pattern, so that the irradiated liquid crystal is cured to form the fixed pattern, and the fixed pattern remains in the scattering state after power-off; remove the voltage, and then irradiate the remaining liquid crystal with UV light, or irradiate all the liquid crystal in the liquid crystal display screen with UV light again, so that the remaining liquid crystal is cured to be in a transparent state.

2. The light-scattering LCD that can be disposed within an optical lens barrel according to claim 1, Characterized in that : The fixed pattern is a cross scale line.

3. The light-scattering LCD that can be disposed within an optical lens barrel according to claim 1, Characterized in that : A first anti-reflection film is provided on the outer surface of the first glass sheet (1), and / or a second anti-reflection film is provided on the outer surface of the second glass sheet (2).

4. The light-scattering LCD that can be disposed within an optical lens barrel according to claim 1, Characterized in that : The fixed pattern is obtained by UV curing.

5. The light-scattering LCD that can be disposed within an optical lens barrel according to claim 1, Characterized in that : The light-scattering LCD is a PNLCD or PDLCD liquid crystal display screen.

6. A manufacturing method of the light-scattering LCD that can be disposed within an optical lens barrel according to any one of claims 1-5, Characterized in that, Comprises the following steps: S11. Prepare a liquid crystal cell, inject liquid crystal containing UV curable material into the liquid crystal cell, and seal it to form a transparent liquid crystal display screen; S12. Apply voltage to all the electrodes of the liquid crystal display screen, so that the liquid crystal in all the electrode parts in the liquid crystal display screen becomes scattering; S13. While keeping the power on, irradiate the liquid crystal in a predetermined part inside the liquid crystal display screen with UV light that exactly matches the fixed pattern, so that the irradiated liquid crystal is cured to form a fixed pattern, and the fixed pattern always remains in a scattered state after power-off; S14. Remove the voltage, and then irradiate the remaining liquid crystal with UV light, or irradiate all the liquid crystal of the liquid crystal display screen with UV light again, so that the remaining liquid crystal is cured into a transparent state.

7. A manufacturing method of a light-scattering type LCD that can be arranged in an optical lens barrel according to any one of claims 1-5, characterized in that, it includes the following steps: S21. Prepare a liquid crystal cell, and inject liquid crystal containing a UV curable material into the liquid crystal cell, and seal it to make a transparent liquid crystal display screen; S22. Apply power to the electrodes in the liquid crystal display screen that need to form a fixed pattern, so that the liquid crystal in this part of the liquid crystal display screen is in a scattered state; S23. While keeping the power on, irradiate all the liquid crystal of the liquid crystal display screen with UV light, so that the liquid crystal corresponding to the fixed pattern is cured to form a fixed pattern while remaining in a scattered state, and the fixed pattern always remains in a scattered state after power-off; and the remaining liquid crystal is cured into a transparent state while remaining in a transparent state.

8. A microscope, rangefinder, gun sight, camera or telescope using a light-scattering type LCD that can be arranged in an optical lens barrel according to any one of claims 1-5.

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