Liquid crystal screen structure simulating crt kinescope and optimized display method of liquid crystal screen structure

Abstract

The invention relates to the technical field of liquid crystal screens, in particular to a liquid crystal screen structure simulating a crt kinescope and an optimized display method of the liquid crystal screen structure, and solves the problems that when an existing liquid crystal display is used for displaying images, light rays are generally perpendicular to the surface of the display, so that pictures cannot be clearly watched from a lateral view angle, and the stereoscopic impression of the pictures is limited. Comprising a liquid crystal display mechanism, the liquid crystal display mechanism comprises a liquid crystal screen body, a light guide arrangement unit is installed on the rear end face of the liquid crystal screen body, the light guide arrangement unit is composed of a liquid crystal layer, a light-transmitting installation substrate, a light deflection frame strip and a light perpendicular incidence plate, and the light-transmitting installation substrate is fixedly installed on the front end face of the liquid crystal layer. A light perpendicular incidence plate is installed in the middle of the front end face of the light-transmitting installation substrate, and a plurality of light deflection frame strips are installed on the outer side of the light perpendicular incidence plate. The crt kinescope is simulated through the liquid crystal screen, the visual angle of the liquid crystal screen can be effectively increased, and the stereoscopic impression of a picture is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal displays, and specifically to a liquid crystal display screen structure imitating a CRT picture tube and an optimized display method therefor. Background Art

[0002] A liquid crystal display is an active matrix liquid crystal display driven by thin film transistors. It mainly forms an image by using an electric current to stimulate liquid crystal molecules to generate dots, lines, and planes in cooperation with a backlight tube. Under the action of an electric field, the arrangement direction of liquid crystal molecules changes, causing the light transmittance of an external light source to change (modulation), thereby completing the electro-optical conversion. Then, by using different excitations of R, G, and B primary color signals and passing through red, green, and blue primary color filter films, color reproduction in the time domain and space domain is completed. It is widely used in various electronic devices, such as televisions, computer monitors, mobile phones, tablet computers, etc., providing a clear and high-resolution visual experience.

[0003] When an existing liquid crystal display performs image display, the light is usually perpendicular to the surface of the display, which causes the side view angle to be unable to clearly view the image and limits the three-dimensional feeling of the image. Therefore, it does not meet the existing requirements. For this reason, we propose a liquid crystal display screen structure imitating a CRT picture tube and an optimized display method therefor. Summary of the Invention

[0004] The purpose of the present invention is to provide a liquid crystal display screen structure imitating a CRT picture tube and an optimized display method therefor, so as to solve the problem that when an existing liquid crystal display performs image display, the light is usually perpendicular to the surface of the display, which causes the side view angle to be unable to clearly view the image and limits the three-dimensional feeling of the image as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A liquid crystal display screen structure imitating a CRT picture tube, including a liquid crystal display mechanism. The liquid crystal display mechanism includes a liquid crystal display screen main body. A light guide arrangement unit is installed on the rear end face of the liquid crystal display screen main body. The light guide arrangement unit is composed of a liquid crystal layer, a light-transmitting installation substrate, a light deflection frame strip, and a light direct plate. The front end face of the liquid crystal layer is fixedly installed with a light-transmitting installation substrate. A light direct plate is installed in the middle of the front end face of the light-transmitting installation substrate. A plurality of light deflection frame strips are installed outside the light direct plate.

[0006] The light-directing plate and the multiple light-deflecting frame strips both include a light-transmitting positioning groove plate. A light-transmitting mounting groove plate is installed on the front end face of the light-transmitting positioning groove plate. A alignment film is installed between the light-transmitting mounting groove plate and the light-transmitting positioning groove plate. Fixing angle strips are installed on both side edges of the alignment film. A plurality of spacer sheets are installed between the alignment film and the two fixing angle strips. A light-transmitting resin block is installed on the upper end face of the spacer sheet. A plano-convex lens is fixedly installed inside the light-transmitting resin block. An incident light plane is provided on the rear end face of the plano-convex lens. A second light-emitting arc surface is provided in the middle of the front end face of the plano-convex lens. A first light-emitting arc surface is provided outside the second light-emitting arc surface.

[0007] Preferably, a lamp installation mechanism is installed on the rear end face of the liquid crystal display mechanism. The lamp installation mechanism includes a shielding insulation layer. A lamp arrangement plate is installed on the front end face of the shielding insulation layer. A thin-film transistor substrate is fixedly installed on the front end face of the lamp arrangement plate. A storage capacitor layer is installed on the front end face of the thin-film transistor substrate. The lamp arrangement plate and the storage capacitor layer are fixedly connected through the thin-film transistor substrate.

[0008] Preferably, a liquid crystal screen installation mechanism is installed outside the lamp installation mechanism. The liquid crystal screen installation mechanism includes a shaping frame strip. A limiting frame strip is installed inside the shaping frame strip. A protective rear cover is installed on the rear end face of the limiting frame strip. Two bracket positioning grooves are provided at the rear end of the protective rear cover. A ventilation opening is provided on one side of the bracket positioning groove. The protective rear cover and the limiting frame strip are fixedly connected through the shaping frame strip.

[0009] Preferably, the liquid crystal screen main body and the light guide arrangement unit are fixedly connected through the limiting frame strip and the shaping frame strip. The liquid crystal screen main body is composed of a filter substrate, a plurality of color filters and a polarizing plate. The plurality of color filters are fixedly arranged between the filter substrate and the polarizing plate. The filter substrate is in close contact with the front end faces of the light-directing plate and the multiple light-deflecting frame strips.

[0010] Preferably, the outer edge dimensions of the multiple light-deflecting frame strips increase sequentially from inside to outside. The cross-sectional dimensions of the multiple light-deflecting frame strips are all the same. The light-transmitting positioning groove plate is snap-fitted with the light-transmitting mounting groove plate. The light-transmitting positioning groove plate and the multiple light-transmitting resin blocks are fixedly connected through the alignment film. The light-transmitting mounting groove plate and the multiple light-transmitting resin blocks are fixedly connected through two fixing angle strips. The light-transmitting resin blocks cover the outside of the fixing angle strips. The plurality of spacer sheets and the light-transmitting resin blocks are arranged linearly and alternately along the side edges of the fixing angle strips.

[0011] An optimized display method for a liquid crystal screen structure imitating a CRT picture tube includes the following steps:

[0012] S1: Install both the liquid crystal display mechanism and the lamp tube installation mechanism inside the liquid crystal screen installation mechanism. Specifically, wrap and install the liquid crystal display mechanism and the lamp tube installation mechanism through the protective rear cover and the limiting frame strip, and use the shaping frame strip to shape and support the protective rear cover and the limiting frame strip to maintain the stability of the installation and use of the liquid crystal display mechanism and the lamp tube installation mechanism;

[0013] S2: Fix the light-directing plate with the shaped corner strip and multiple light-deflecting frame strips on the front end face of the light-transmitting installation substrate. The outer edge sizes of the multiple light-deflecting frame strips increase sequentially from the inside to the outside and are sleeved outside the light-directing plate. Perform liquid crystal imaging and display operations through the lamp tube installation mechanism, the liquid crystal screen main body, and the light guide arrangement unit. Among them, the light-directing plate and the multiple light-deflecting frame strips can deflect the light forming the image at a specific angle;

[0014] S3: Specifically, multiple plano-convex lenses in the light-directing plate and the multiple light-deflecting frame strips are fixed between the light-transmitting installation groove plate and the light-transmitting positioning groove plate through light-transmitting resin blocks. Moreover, multiple spacer sheets and light-transmitting resin blocks are linearly arranged alternately along the side of the shaped corner strip. Then, adjacent two light-transmitting resin blocks are separated by the spacer sheets to facilitate the positioning and installation of the multiple light-transmitting resin blocks. The light-transmitting resin blocks are injection-molded outside the plano-convex lenses. An incident light plane is provided on the rear end face of the plano-convex lens. While the light is linearly transmitted through the light-transmitting positioning groove plate, the alignment film, and the light-transmitting resin block, the light is introduced into the interior of the plano-convex lens through the incident light plane;

[0015] S4: A first light-emitting arc surface and a second light-emitting arc surface are provided on the front end face of the plano-convex lens, and the first light-emitting arc surface is located outside the second light-emitting arc surface, so that the plano-convex lens can diverge and deflect the light at different angles through the first light-emitting arc surface and the second light-emitting arc surface. Furthermore, the plano-convex lens can expand the display range of the light and make the light more uniform. Adjust the installation angle of the plano-convex lens according to the position of the plano-convex lens on the front end face of the light-transmitting installation substrate;

[0016] S5: Specifically, the incident light plane on the rear end face of the plano-convex lens in the light-directing plate is parallel to the front end face of the light-transmitting installation groove plate. At the same time, there is a deflection angle between the incident light plane on the rear end face of the plano-convex lens in the light-deflecting frame strip and the front end face of the light-transmitting installation groove plate, and as the outer edge size of the light-deflecting frame strip increases, the deflection angle between the plano-convex lens and the light-transmitting installation groove plate increases synchronously. Therefore, during the process of guiding the light by the plano-convex lenses in the light-directing plate and the multiple light-deflecting frame strips, the viewing angle of the liquid crystal display can be effectively increased, making the three-dimensional sense and spatial sense of the picture stronger.

[0017] Preferably, the deflection angle between the light incident plane and the light-transmitting mounting groove plate is 0-6°. The light-transmitting mounting substrate is fixedly connected to a plurality of light-transmitting positioning groove plates, and the light-transmitting positioning groove plates and a plurality of spacer sheets are integrally injection-molded.

[0018] Preferably, the light-transmitting mounting substrate and the liquid crystal display screen body are fixedly connected through a light-directing plate and a plurality of light-deflecting frame bars. A sealing gasket is provided between the side of the liquid crystal display screen body and the limiting frame bar.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In the present invention, the shaping frame bars are used to shape and support the protective rear cover and the limiting frame bar, so as to maintain the stability of the installation and use of the liquid crystal display mechanism and the lamp tube installation mechanism. The outer edge dimensions of the plurality of light-deflecting frame bars increase sequentially from the inside to the outside and are sleeved outside the light-directing plate. The light-directing plate and the plurality of light-deflecting frame bars can deflect the light forming the image at a specific angle. While the light is linearly transmitted through the light-transmitting positioning groove plate, the alignment film and the light-transmitting resin block, the light is introduced into the internal of the plano-convex lens through the light incident plane, so that the plano-convex lens can diverge and deflect the light at different angles through the first light-emitting arc surface and the second light-emitting arc surface. Furthermore, the plano-convex lens can expand the display range of the light and the light is more uniform.

[0021] 2. In the present invention, the installation angle of the plano-convex lens is adjusted according to the position of the plano-convex lens on the front end face of the light-transmitting mounting substrate. The light incident plane on the rear end face of the plano-convex lens in the light-directing plate is parallel to the front end face of the light-transmitting mounting groove plate. At the same time, there is a deflection angle between the light incident plane on the rear end face of the plano-convex lens in the light-deflecting frame bar and the front end face of the light-transmitting mounting groove plate, and as the outer edge dimension of the light-deflecting frame bar increases, the deflection angle between the plano-convex lens and the light-transmitting mounting groove plate increases synchronously. Therefore, during the process of guiding the light by the plano-convex lenses in the light-directing plate and the plurality of light-deflecting frame bars, the viewing angle of the liquid crystal display can be effectively increased, making the three-dimensional sense and spatial sense of the picture stronger. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0023] Figure 2 is a rear view of the whole of the present invention;

[0024] Figure 3 is an exploded schematic structural diagram of the whole of the present invention;

[0025] Figure 4 is the present invention Figure 1 is a schematic cross-sectional structure diagram of area A in;

[0026] Figure 5Explosion schematic diagram of the structure of the liquid crystal display mechanism of the present invention;

[0027] Figure 6 Partial explosion schematic diagram of the light deflection frame strip and the light direct plate of the present invention;

[0028] Figure 7 Partial cross-sectional structure schematic diagram of the light deflection frame strip and the light direct plate of the present invention;

[0029] Figure 8 Schematic diagram of the structure of the plano-convex lens of the present invention.

[0030] In the figure: 1. LCD screen installation mechanism; 101. Shaping frame strip; 102. Protective rear cover; 103. Bracket positioning groove; 104. Ventilation opening; 105. Limiting frame strip; 2. Liquid crystal display mechanism; 201. LCD screen main body; 202. Light guide arrangement unit; 203. Liquid crystal layer; 204. Translucent installation substrate; 205. Light deflection frame strip; 206. Light direct plate; 207. Translucent installation groove plate; 208. Translucent positioning groove plate; 209. Spacer; 210. Translucent resin block; 211. Alignment film; 212. Shaping angle strip; 213. Plano-convex lens; 214. Incident light plane; 215. First light-emitting arc surface; 216. Second light-emitting arc surface; 3. Lamp tube installation mechanism; 301. Shielding insulation layer; 302. Lamp tube arrangement board; 303. Thin film transistor substrate; 304. Storage capacitor layer. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Please refer to Figure 1 、 Figure 2 and Figure 4 , an embodiment provided by the present invention: An LCD screen structure imitating a CRT picture tube includes a liquid crystal display mechanism 2. A lamp tube installation mechanism 3 is installed on the rear end surface of the liquid crystal display mechanism 2. An LCD screen installation mechanism 1 is installed outside the lamp tube installation mechanism 3. The LCD screen installation mechanism 1 includes a shaping frame strip 101. A limiting frame strip 105 is installed inside the shaping frame strip 101. A protective rear cover 102 is installed on the rear end surface of the limiting frame strip 105. Two bracket positioning grooves 103 are provided at the rear end of the protective rear cover 102. A ventilation opening 104 is provided on one side of the bracket positioning groove 103. The protective rear cover 102 and the limiting frame strip 105 are fixedly connected through the shaping frame strip 101. The shaping frame strip 101 is used for shaping and supporting the protective rear cover 102 and the limiting frame strip 105 to maintain the stability of the installation and use of the liquid crystal display mechanism 2 and the lamp tube installation mechanism 3.

[0033] Please refer toFigures 3 to 5 , the liquid crystal display mechanism 2 includes a liquid crystal screen main body 201. A sealing gasket is provided between the side of the liquid crystal screen main body 201 and the limit frame strip 105. A light guide arrangement unit 202 is installed on the rear end face of the liquid crystal screen main body 201. The liquid crystal screen main body 201 and the light guide arrangement unit 202 are fixedly connected through the limit frame strip 105 and the shaping frame strip 101. The light guide arrangement unit 202 is composed of a liquid crystal layer 203, a light-transmitting installation substrate 204, a light ray deflection frame strip 205, and a light ray direct plate 206. The liquid crystal screen main body 201 is composed of a filter substrate, a plurality of color filters, and a polarizing plate. The plurality of color filters are fixedly arranged between the filter substrate and the polarizing plate. The filter substrate is in contact with the front end faces of the light ray direct plate 206 and the plurality of light ray deflection frame strips 205. The front end face of the liquid crystal layer 203 is fixedly installed with a light-transmitting installation substrate 204. A light ray direct plate 206 is installed in the middle of the front end face of the light-transmitting installation substrate 204. A plurality of light ray deflection frame strips 205 are installed outside the light ray direct plate 206. The light-transmitting installation substrate 204 and the liquid crystal screen main body 201 are fixedly connected through the light ray direct plate 206 and the plurality of light ray deflection frame strips 205. The outer edge dimensions of the plurality of light ray deflection frame strips 205 increase in sequence from the inside to the outside. The cross-sectional dimensions of the plurality of light ray deflection frame strips 205 are all the same. The light ray direct plate 206 and the plurality of light ray deflection frame strips 205 can deflect the light rays forming the image at a specific angle.

[0034] Please refer to Figure 3 and Figure 4 , the lamp tube installation mechanism 3 includes a shielding insulation layer 301. A lamp tube arrangement board 302 is installed on the front end face of the shielding insulation layer 301. A thin film transistor substrate 303 is fixedly installed on the front end face of the lamp tube arrangement board 302. A storage capacitor layer 304 is installed on the front end face of the thin film transistor substrate 303. The lamp tube arrangement board 302 and the storage capacitor layer 304 are fixedly connected through the thin film transistor substrate 303. The liquid crystal imaging and display operations are performed through the lamp tube installation mechanism 3, the liquid crystal screen main body 201, and the light guide arrangement unit 202.

[0035] Please refer to Figures 6 to 8, both the light-directing plate 206 and the multiple light-deflecting frame bars 205 include a light-transmitting positioning groove plate 208. The light-transmitting mounting substrate 204 is fixedly connected to the multiple light-transmitting positioning groove plates 208. A light-transmitting mounting groove plate 207 is installed on the front end face of the light-transmitting positioning groove plate 208. The light-transmitting positioning groove plate 208 and the light-transmitting mounting groove plate 207 are snap-fitted. A alignment film 211 is installed between the light-transmitting positioning groove plate 208 and the light-transmitting mounting groove plate 207. Fixing angle bars 212 are installed on both sides of the alignment film 211. A plurality of spacer sheets 209 are installed between the alignment film 211 and the two fixing angle bars 212. The light-transmitting positioning groove plate 208 and the plurality of spacer sheets 209 are integrally injection-molded. A light-transmitting resin block 210 is installed on the upper end face of the spacer sheet 209. The light-transmitting positioning groove plate 208 and the plurality of light-transmitting resin blocks 210 are fixedly connected through the alignment film 211. The light-transmitting mounting groove plate 207 and the plurality of light-transmitting resin blocks 210 are fixedly connected through the two fixing angle bars 212. The light-transmitting resin block 210 covers the outside of the fixing angle bar 212. The plurality of spacer sheets 209 and the light-transmitting resin blocks 210 are linearly arranged alternately along the side of the fixing angle bar 212. Adjacent two light-transmitting resin blocks 210 are separated by the spacer sheet 209, which is convenient for positioning and installing the plurality of light-transmitting resin blocks 210;

[0036] A plano-convex lens 213 is fixedly installed inside the light-transmitting resin block 210. A light-incident plane 214 is provided on the rear end face of the plano-convex lens 213. The deflection angle between the light-incident plane 214 and the light-transmitting mounting groove plate 207 is 0 - 6°. A second light-emitting arc surface 216 is provided in the middle of the front end face of the plano-convex lens 213. A first light-emitting arc surface 215 is provided outside the second light-emitting arc surface 216. During the process of guiding light by the plano-convex lens 213, the viewing angle of the liquid crystal display can be effectively increased, making the three-dimensional sense and spatial sense of the picture stronger.

[0037] An optimized display method for a liquid crystal screen structure imitating a CRT picture tube includes the following steps:

[0038] S1: Install both the liquid crystal display mechanism 2 and the lamp installation mechanism 3 inside the liquid crystal screen installation mechanism 1. Specifically, the liquid crystal display mechanism 2 and the lamp installation mechanism 3 are covered and installed through the protective rear cover 102 and the limit frame bar 105, and the protective rear cover 102 and the limit frame bar 105 are shaped and supported through the shaping frame bar 101 to maintain the stability of the installation and use of the liquid crystal display mechanism 2 and the lamp installation mechanism 3;

[0039] S2: Fix the light-directing plate 206 with the shaped corner strip 212 and multiple light-deflecting frame strips 205 on the front end face of the light-transmissive mounting substrate 204. The outer edge dimensions of the multiple light-deflecting frame strips 205 increase sequentially from the inside to the outside and are sleeved outside the light-directing plate 206. Perform liquid crystal imaging and display operations through the lamp installation mechanism 3, the liquid crystal display main body 201, and the light guide arrangement unit 202. Among them, the light-directing plate 206 and the multiple light-deflecting frame strips 205 can deflect the light forming the image at a specific angle;

[0040] S3: Specifically, multiple plano-convex lenses 213 in the light-directing plate 206 and the multiple light-deflecting frame strips 205 are fixed between the light-transmissive installation groove plate 207 and the light-transmissive positioning groove plate 208 through the light-transmissive resin blocks 210. And the multiple spacer sheets 209 and the light-transmissive resin blocks 210 are linearly arranged alternately along the side of the shaped corner strip 212. Then, the adjacent two light-transmissive resin blocks 210 are separated by the spacer sheets 209, which is convenient for positioning and installing the multiple light-transmissive resin blocks 210. The light-transmissive resin blocks 210 are injection-molded outside the plano-convex lenses 213. An incident light plane 214 is provided on the rear end face of the plano-convex lens 213. While the light is linearly transmitted through the light-transmissive positioning groove plate 208, the alignment film 211, and the light-transmissive resin blocks 210, the light is introduced into the interior of the plano-convex lens 213 through the incident light plane 214;

[0041] S4: A first light-emitting arc surface 215 and a second light-emitting arc surface 216 are provided on the front end face of the plano-convex lens 213, and the first light-emitting arc surface 215 is located outside the second light-emitting arc surface 216. So that the plano-convex lens 213 can diverge and deflect the light at different angles through the first light-emitting arc surface 215 and the second light-emitting arc surface 216. Then, the plano-convex lens 213 can expand the display range of the light, and the light is more uniform. Adjust the installation angle of the plano-convex lens 213 according to the position of the plano-convex lens 213 on the front end face of the light-transmissive mounting substrate 204;

[0042] S5: Specifically, the incident light plane 214 on the rear end face of the plano-convex lens 213 in the light-directing plate 206 is parallel to the front end face of the light-transmissive installation groove plate 207. At the same time, there is a deflection angle between the incident light plane 214 on the rear end face of the plano-convex lens 213 in the light-deflecting frame strip 205 and the front end face of the light-transmissive installation groove plate 207. And as the outer edge dimension of the light-deflecting frame strip 205 increases, the deflection angle between the plano-convex lens 213 and the light-transmissive installation groove plate 207 increases synchronously. Then, when the plano-convex lenses 213 in the light-directing plate 206 and the multiple light-deflecting frame strips 205 conduct light, the viewing angle of the liquid crystal display can be effectively increased, making the three-dimensional sense and the sense of space of the picture stronger.

[0043] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A liquid crystal screen structure imitating a CRT picture tube, comprising a liquid crystal display mechanism (2), characterized in that: The liquid crystal display mechanism (2) comprises a liquid crystal screen body (201); a light guide arrangement unit (202) is installed on the rear end face of the liquid crystal screen body (201); the light guide arrangement unit (202) is composed of a liquid crystal layer (203), a light-transmitting mounting substrate (204), a light deflecting frame strip (205) and a light directing plate (206); the light-transmitting mounting substrate (204) is fixedly installed on the front end face of the liquid crystal layer (203); a light directing plate (206) is installed in the middle of the front end face of the light-transmitting mounting substrate (204); and a plurality of light deflecting frame strips (205) are installed on the outer side of the light directing plate (206); The light directing plate (206) and the plurality of light deflecting frame strips (205) both comprise a light-transmitting positioning slot plate (208), a light-transmitting mounting slot plate (207) being mounted on the front end surface of the light-transmitting positioning slot plate (208), an alignment film (211) being mounted between the light-transmitting mounting slot plate (207) and the light-transmitting positioning slot plate (208), and shaping angle strips (212) being mounted on both sides of the alignment film (211), and the alignment film (211) and the two shaping angle strips (212) are connected to each other. ), a plurality of isolation plates (209) are installed between the upper end surface of the isolation plates (209), a light-transmitting resin block (210) is installed, a plano-convex lens (213) is fixedly installed on the inner side of the light-transmitting resin block (210), a light incident plane (214) is provided on the rear end surface of the plano-convex lens (213), a second light-emitting arc surface (216) is provided in the middle of the front end surface of the plano-convex lens (213), and a first light-emitting arc surface (215) is provided on the outer side of the second light-emitting arc surface (216).

2. The liquid crystal screen structure imitating a CRT picture tube according to claim 1, characterized in that: A lamp tube mounting mechanism (3) is installed on the rear end face of the liquid crystal display mechanism (2); the lamp tube mounting mechanism (3) comprises a shielding insulation layer (301); a lamp tube arrangement plate (302) is installed on the front end face of the shielding insulation layer (301); a thin film crystal substrate (303) is fixedly installed on the front end face of the lamp tube arrangement plate (302); a storage capacitor layer (304) is installed on the front end face of the thin film crystal substrate (303); and the lamp tube arrangement plate (302) and the storage capacitor layer (304) are fixedly connected via the thin film crystal substrate (303).

3. The liquid crystal screen structure imitating a CRT picture tube according to claim 2, characterized in that: A liquid crystal screen mounting mechanism (1) is mounted on the outer side of the lamp tube mounting mechanism (3), and the liquid crystal screen mounting mechanism (1) comprises a shaping frame strip (101), a limiting frame strip (105) is mounted on the inner side of the shaping frame strip (101), a protective back cover (102) is mounted on the rear end surface of the limiting frame strip (105), two bracket positioning grooves (103) are arranged at the rear end of the protective back cover (102), a ventilation hole (104) is arranged on one side of the bracket positioning groove (103), and the protective back cover (102) and the limiting frame strip (105) are fixedly connected via the shaping frame strip (101).

4. The liquid crystal screen structure imitating a CRT picture tube according to claim 3, characterized in that: The liquid crystal screen body (201) and the light guide arrangement unit (202) are fixedly connected to the shaping frame bar (101) via a limiting frame bar (105); the liquid crystal screen body (201) is composed of a filter substrate, a plurality of color filters and a polarizing plate; the plurality of color filters are fixedly arranged between the filter substrate and the polarizing plate; the filter substrate is in contact with the front end surfaces of the light directing plate (206) and the plurality of light deflecting frame bars (205).

5. The liquid crystal screen structure imitating a CRT picture tube according to claim 4, characterized in that: The outer edge dimensions of the plurality of light deflection frame strips (205) increase in sequence from the inside to the outside, the cross-sectional dimensions of the plurality of light deflection frame strips (205) are all consistent, the light-transmitting positioning slot plate (208) is mounted by snapping with the light-transmitting mounting slot plate (207), the light-transmitting positioning slot plate (208) is fixedly connected to the plurality of light-transmitting resin blocks (210) via an alignment film (211), the light-transmitting mounting slot plate (207) is fixedly connected to the plurality of light-transmitting resin blocks (210) via two molding angle strips (212), the light-transmitting resin blocks (210) are coated on the outside of the molding angle strip (212), and the plurality of isolation sheets (209) and light-transmitting resin blocks (210) are linearly and alternately arranged along the side of the molding angle strip (212).

6. A method for optimizing display of a liquid crystal screen structure imitating a CRT picture tube according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: The liquid crystal display mechanism (2) and the lamp tube installation mechanism (3) are both installed on the inner side of the liquid crystal screen installation mechanism (1), specifically, the liquid crystal display mechanism (2) and the lamp tube installation mechanism (3) are covered and installed by a protective back cover (102) and a limiting frame strip (105), and the protective back cover (102) and the limiting frame strip (105) are shaped and supported by a shaping frame strip (101), so as to maintain the stability of the liquid crystal display mechanism (2) and the lamp tube installation mechanism (3) during installation and use; S2: fixing a light directing plate (206) equipped with a fixed angle strip (212) and a plurality of light deflecting frame strips (205) on the front end surface of a light-transmitting mounting substrate (204), wherein the outer edge sizes of the plurality of light deflecting frame strips (205) are increased from the inside to the outside and are fitted on the outside of the light directing plate (206), and liquid crystal imaging and display operations are performed through the lamp tube mounting mechanism (3), the liquid crystal screen main body (201) and the light guide arrangement unit (202), wherein the light rays constituting the image can be deflected at a specific angle through the light directing plate (206) and the plurality of light deflecting frame strips (205); S3: Specifically, a plurality of plano-convex lenses (213) in the light directing plate (206) and the plurality of light deflecting frame strips (205) are fixed between the light-transmitting mounting slot plate (207) and the light-transmitting positioning slot plate (208) via a light-transmitting resin block (210), and a plurality of isolation sheets (209) and light-transmitting resin blocks (210) are linearly and alternately arranged along the side of the molding angle strip (212), and then the isolation sheets (209) are used to connect two adjacent light-transmitting resin blocks (210) The light-transmitting resin blocks (210) are separated to facilitate positioning and installation of the plurality of light-transmitting resin blocks (210); the light-transmitting resin blocks (210) are injection-molded on the outside of the plano-convex lens (213); a light-entering plane (214) is provided on the rear end face of the plano-convex lens (213); light is linearly transmitted through the light-transmitting positioning groove plate (208), the alignment film (211) and the light-transmitting resin blocks (210); and light is introduced into the interior of the plano-convex lens (213) through the light-entering plane (214); S4: A first light emitting arc surface (215) and a second light emitting arc surface (216) are provided on the front end surface of the plano-convex lens (213), and the first light emitting arc surface (215) is located outside the second light emitting arc surface (216), so that the plano-convex lens (213) can diverge and deflect light at different angles through the first light emitting arc surface (215) and the second light emitting arc surface (216), thereby the plano-convex lens (213) can expand the display range of light and make the light more uniform, and the installation angle of the plano-convex lens (213) is adjusted according to the position of the front end surface of the plano-convex lens (213) on the light-transmitting installation substrate (204); S5: Specifically, the light incident plane (214) of the rear end face of the plano-convex lens (213) in the light directing plate (206) is in a parallel state with the front end face of the light-transmitting mounting slot plate (207), and at the same time, a deflection angle exists between the light incident plane (214) of the rear end face of the plano-convex lens (213) in the light deflecting frame strip (205) and the front end face of the light-transmitting mounting slot plate (207), and as the outer edge size of the light deflecting frame strip (205) increases, the deflection angle between the plano-convex lens (213) and the light-transmitting mounting slot plate (207) increases synchronously, and thus, in the process of guiding light by the plano-convex lenses (213) in the light directing plate (206) and the plurality of light deflecting frame strips (205), the viewing angle of the liquid crystal display can be effectively increased, so that the three-dimensional sense and spatial sense of the picture are stronger.

7. The method for optimizing display of a liquid crystal screen structure imitating a CRT picture tube according to claim 6, characterized in that: The deflection angle between the light incident plane (214) and the light-transmitting installation slot plate (207) is 0-6°, the light-transmitting installation substrate (204) and the plurality of light-transmitting positioning slot plates (208) are fixedly connected, and the light-transmitting positioning slot plates (208) and the plurality of isolation plates (209) are integrally injection molded.

8. The method for optimizing display of a liquid crystal screen structure imitating a CRT picture tube according to claim 6, characterized in that: The light-transmitting mounting substrate (204) is fixedly connected to the liquid crystal screen body (201) via a light directing plate (206) and a plurality of light deflecting frame strips (205), and a sealing gasket is provided between the side edge of the liquid crystal screen body (201) and the limiting frame strip (105).

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