An anti-reflection AG liquid crystal display panel

Abstract

The present invention discloses an anti-reflection AG liquid crystal display panel, which sequentially includes, from top to bottom, a titanium dioxide film layer with a thickness less than that of, an AG film layer, an SRF substrate, a PSA optical adhesive, and an optically transparent release film; the surface layer of the SRF substrate has a frosted surface, and the frosted surface is relatively uniformly distributed with pits; the SRF substrate has relatively uniformly distributed micro-cavities. The structure of the present invention is simple, easy to process, has high processing efficiency and low production cost, scatters external strong light, reflects the light in all directions, realizes diffuse reflection, has a haze less than 0.63%, a visible light transmittance greater than 93%, a surface hardness of 5H, and a reflectance of visible light less than 0.63%.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display panels of generation 6 and above, and particularly to an anti-reflection AG liquid crystal display panel. Background Art

[0002] In the prior art, the TAC substrate in liquid crystal display panels of generation 6 and above is flat, and the viewing angle is relatively small. In addition, when directly irradiated by sunlight or in the case of strong external light, due to light reflection, a halo phenomenon appears on the surface of the display screen, and the content of the display screen cannot be observed by the human eye at all. Therefore, it is necessary to improve. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an anti-reflection AG liquid crystal display panel. The structure of the present invention is simple, easy to process, has high processing efficiency and low production cost.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: an anti-reflection AG liquid crystal display panel, which sequentially includes a titanium dioxide film layer with a thickness less than 50 nanometers, an AG film layer with a thickness less than 3 micrometers, an SRF substrate with a thickness of 150 - 200 micrometers, a PSA optical adhesive with a thickness less than 30 micrometers, and an optically transparent release film with a thickness less than 100 micrometers from top to bottom; the surface layer of the SRF substrate has a frosted surface, and the frosted surface is relatively evenly distributed with pits having an average particle size of 20 - 100 nanometers; the SRF substrate whose surface has been treated by high-voltage corona has relatively evenly distributed micro-holes, the depth of the micro-holes penetrating into the SRF substrate is 30 - 50 nanometers, the average width of the top of the micro-holes is 30 - 50 nanometers, and pits and micro-holes are alternately distributed on the surface of the SRF substrate.

[0005] The surface of the SRF substrate simultaneously has the pits that exist relatively independently, the micro-holes that exist relatively independently, and combined pits composed of locally overlapping pits and micro-holes. Among them, the pits that exist relatively independently are spaced in the gaps between the sum of the micro-holes and the combined pits, and the micro-holes that exist relatively independently are spaced in the gaps between the pits and the combined pits. The titanium dioxide film layer is compounded on the surface of the SRF substrate, and the titanium dioxide film layer seals the surfaces of the micro-holes and covers the pits.

[0006] The advantages of the present invention compared with the prior art are: the structure of the present invention is simple, easy to process, has high processing efficiency and low production cost, scatters external strong light, reflects the light in all directions to achieve diffuse reflection, its haze is less than 0.63%, the visible light transmittance is greater than 93%, the surface hardness is 5H, and the reflectance of visible light is less than 0.63%. Description of the Drawings

[0007] Figure 1 It is an observation effect diagram of the liquid crystal display panel of Comparative Example 1 in the black screen state.

[0008] Figure 2 It is an observation effect diagram of the liquid crystal display panel of Comparative Example 1 in the display state.

[0009] Figure 3 It is an observation effect diagram of the liquid crystal display panel of Example 1 in the black screen state.

[0010] Figure 4 It is an observation effect diagram of the liquid crystal display panel of Example 1 in the display state.

[0011] Figure 5 It is a microscopic enlarged view of the surface of the SRF substrate of Example 1.

[0012] Figure 6 It is a curve graph for testing the visible light reflectivity of Example 1.

[0013] In the figure: Detailed Description of the Invention

[0014] Comparative Example 1

[0015] A diffusive reflection display panel Figure 1 and 2 as shown, from top to bottom, successively includes

[0016] The first layer is a PE protective film layer. The protective film is the actual used layer to avoid dirt, scratches, etc.

[0017] The second layer is an AG hardened optical coating to achieve the purpose of diffusive reflection.

[0018] The third layer is a carrier optical PET film for carrying the optical coating.

[0019] The fourth layer is a PSA optical adhesive to facilitate seamless adhesion with the product.

[0020] The fifth layer is an optically transparent release film to protect the optical adhesive from contamination, etc.

[0021] The diffusive reflection display panel of Comparative Example 1 is a three-layer ordinary film system diffusive reflection structure, with a haze of 6.5%, a transmittance of 92.5%, a surface hardness of 3H, a pixel value of 250 ppi, and an average reflectivity to visible light of 1.5 - 2.2%.

[0022] Figure 1 and 2As shown, the reflectivity to visible light reaches 1.5 or more. In the black screen state (not lit) and in the display state (lit), the lamp tubes in the liquid crystal display panel that can be observed are all dazzling, and the lamp tube images seriously affect the image.

[0023] Example 1

[0024] An anti-reflection AG liquid crystal display panel, Figures 3 to 6 As shown, from top to bottom, it sequentially includes a titanium dioxide film layer with a thickness less than 50 nanometers, an AG film layer with a thickness less than 3 microns, an SRF substrate with a thickness of 150 - 200 microns, a PSA optical adhesive with a thickness less than 30 microns, and an optically transparent release film with a thickness less than 100 microns; the surface layer of the SRF substrate has a frosted surface, and the frosted surface is relatively evenly distributed with pits having an average particle size of 20 - 100 nanometers; the SRF substrate whose surface has been treated by high-voltage corona has relatively evenly distributed micro-cavities, the depth of the micro-cavities penetrating into the SRF substrate is 30 - 50 nanometers, the average width of the top of the micro-cavities is 30 - 50 nanometers, and the surface of the SRF substrate is alternately distributed with pits and micro-cavities; the titanium dioxide film layer is compounded on the surface of the SRF substrate, the titanium dioxide film layer seals the surfaces of the micro-cavities, and the titanium dioxide film layer covers the pits.

[0025] Preferably, the thickness of the titanium dioxide film layer is 15 - 18 nanometers, the thickness of the AG film layer is less than 1 micron, the thickness of the SRF substrate is 160 - 170 microns, the thickness of the PSA optical adhesive is 5 - 8 microns, and the thickness of the optically transparent release film is 70 - 80 microns.

[0026] The surface of the SRF substrate simultaneously has pits that exist relatively independently, micro-cavities that exist relatively independently, and combined pits composed of partially overlapping pits and micro-cavities. The pits that exist relatively independently are spaced apart among the micro-cavities, and the micro-cavities that exist relatively independently are spaced apart in the gaps among the pits and the combined pits.

[0027] The present invention performs a scattering treatment on the external strong light, reflects the light in all directions, realizes diffuse reflection, rather than reflecting in one direction. The light reflected in one direction is changed into light reflected in multiple directions, thereby realizing diffuse reflection. The anti-glare film can effectively reduce 55% of the glare and 65% of the reflection from the screen, while reducing 70% of the harmful blue light and gloss. Using the anti-glare film can reduce the risk of blue light damage and eye glare discomfort, prevent visual fatigue and protect eye health.

[0028] Figure 3 and 4As shown, the reflectivity to visible light is reduced to below 0.63. The lamp tubes in the liquid crystal display panel observed in the black screen state (not lit) are scattered and significantly soft, and the lamp tube images in the liquid crystal display panel observed in the display state (lit) are significantly reduced and scattered.

[0029] Specifically, the haze of the present invention is 0.63%, the transmittance is 93.5%, the surface hardness is 5H, the pixel value is 250 ppi, and the reflectivity to visible light is less than 0.63. See Table 1 for reflectivity test.

[0030]

[0031] Table 1 Reflectivity Test

[0032] Specifically, the average distance between two adjacent micro-cavities is 100 - 300 nanometers, and the average distance between two adjacent pits is 50 - 100 nanometers. Preferably, the average particle size of the pits is controlled at 31 - 35 nanometers, the depth of the micro-cavities penetrating into the SRF substrate is 5 - 10 nanometers, the average width of the top of the micro-cavities is 41 - 45 nanometers, the depth of the micro-cavities penetrating into the SRF substrate is 31 - 35 nanometers, the average distance between two adjacent micro-cavities is 260 - 280 nanometers, the average distance between two adjacent pits is 80 - 90 nanometers, and more than 30% of the pits and the corresponding micro-cavities by quantity ratio form combined cavity pits. Figure 5 The black circular area corresponds to the micro-cavities, and the white and gray circular depressions correspond to pits with different depths. The reflectivity of the present invention to visible light with wavelengths of 380 - 420 μm linearly decreases from 2.0491% to 0.629%. The reflectivity of the present invention to visible light with wavelengths of 420 - 460 μm linearly decreases from 0.629% to 0.4481%. The reflectivity of the present invention to visible light with wavelengths of 460 - 620 μm is 0.229 to 0.4481, and the reflectivity of visible light in this wavelength range changes gently. The reflectivity of the present invention to visible light with wavelengths of 620 - 740 μm increases from 0.229 to 2.736.

Claims

1. An anti-reflection AG liquid crystal display panel, characterized in that: it sequentially includes a titanium dioxide film layer with a thickness less than 50 nanometers, an AG film layer with a thickness less than 3 micrometers, an SRF substrate with a thickness of 150 - 200 micrometers, a PSA optical adhesive with a thickness less than 30 micrometers, and an optically transparent release film with a thickness less than 100 micrometers from top to bottom; The surface layer of the SRF substrate has a frosted surface, and the frosted surface is relatively evenly distributed with pits having an average particle size of 20 - 100 nanometers; The SRF substrate with its surface treated by high-voltage corona has relatively evenly distributed micropores with a depth of 5 - 10 nanometers penetrating into the SRF substrate and micropores with a depth of 31 - 35 nanometers penetrating into the SRF substrate. The average width of the top of the micropores is 41 - 45 nanometers, the average distance between adjacent two micropores is 100 - 300 nanometers, and the average distance between adjacent two pits is 50 - 100 nanometers. The surface of the SRF substrate is alternately distributed with pits and micropores. The surface of the SRF substrate simultaneously has pits existing relatively independently, micropores existing relatively independently, and combined pits composed of partially overlapping pits and micropores. More than 30% of the pits by quantity and the corresponding micropores form combined pits. The pits existing relatively independently are spaced among the sum of the micropores and the gaps between the combined pits, and the micropores existing relatively independently are spaced among the gaps between the pits and the combined pits.

2. The anti-reflection AG liquid crystal display panel according to claim 1, characterized in that: the thickness of the titanium dioxide film layer is 15 - 18 nanometers, the thickness of the AG film layer is less than 1 micrometer, the thickness of the SRF substrate is 160 - 170 micrometers, the thickness of the PSA optical adhesive is 5 - 8 micrometers, and the thickness of the optically transparent release film is 70 - 80 micrometers.

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