CN215219370U - Liquid crystal display panel and liquid crystal display device - Google Patents
Liquid crystal display panel and liquid crystal display device Download PDFInfo
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- CN215219370U CN215219370U CN202121097649.1U CN202121097649U CN215219370U CN 215219370 U CN215219370 U CN 215219370U CN 202121097649 U CN202121097649 U CN 202121097649U CN 215219370 U CN215219370 U CN 215219370U
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Abstract
The utility model provides a liquid crystal display panel and liquid crystal display device relates to and shows technical field, this liquid crystal display panel, include: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal layer, wherein the array substrate and the color film substrate are arranged in a stacked mode; the color film substrate comprises a first substrate and a color filter layer which are stacked, and the color filter layer comprises a blue filter unit; the array substrate comprises a second substrate and a thin film transistor layer which are stacked; the liquid crystal display panel further comprises a blue light prevention film layer, the blue light prevention film layer is not adjacent to the color filter layer, and the blue light prevention film layer is overlapped with the projection of the blue light filtering unit along the thickness direction of the liquid crystal display panel. The utility model discloses a prevent blue light rete in the projection position department that blue light filtering unit corresponds and with the not adjacent position increase of blue light filtering unit to reach the effect of filtering the blue light of high energy, realize preventing the purpose of blue light.
Description
Technical Field
The utility model belongs to the technical field of show, especially, relate to a liquid crystal display panel and liquid crystal display device.
Background
With the popularization of electronic products, people have no way to leave digital products such as computers, notebooks, mobile phones, televisions and the like every day, and most of screens of the electronic devices are Liquid Crystal Display (LCD) panels. The lcd panel generally needs to use Light Emitting Diodes (LEDs) to provide a backlight source, wherein the white light emitted from the LED light source is mainly formed by exciting the phosphor with blue light having a wavelength of 440nm-460nm, and the shorter the wavelength of the blue light, the stronger the excitation capability.
However, since the short-wave blue light has extremely high energy and can penetrate through the crystalline lens to the retina, the short-wave blue light can cause certain damage to the eyes of users, and even cause permanent damage to the vision of serious people.
At present, in order to reduce the damage of blue light, each LCD manufacturer mainly prevents the blue light by the schemes of surface film pasting, software adjustment, backlight source LED changing and the like. But the surface film has the defects of non-uniform optical parameters and possible secondary damage; the software adjustment enables the RGB brightness to be reduced simultaneously, and the loss of the brightness of the liquid crystal display device is large; the backlight source LED is changed, and the blue light with long wavelength is used for excitation, so that the blue light excitation efficiency is reduced, the power consumption of the LED lamp strip is increased, and the power consumption of the liquid crystal display device is increased.
In summary, in order to reduce the damage of blue light, the liquid crystal display panel adopts schemes of surface film pasting, software adjustment, LED change and the like, which have certain defects, so how to effectively reduce blue light is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a liquid crystal display panel and liquid crystal display device prevents the blue light rete through the projection position department that blue light filtering unit corresponds and with the not adjacent position increase of blue light filtering unit to reach the effect of filtering the blue light of high energy, realize preventing the purpose of blue light.
In a first aspect, an embodiment of the present invention provides a liquid crystal display panel, including: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal layer, wherein the array substrate and the color film substrate are arranged in a stacked mode; the color film substrate comprises a first substrate and a color filter layer which are stacked, and the color filter layer comprises a blue filter unit; the array substrate comprises a second substrate and a thin film transistor layer which are stacked;
the liquid crystal display panel also comprises a blue light prevention film layer, and the blue light prevention film layer is not adjacent to the color filter layer; in addition, along the thickness direction of the liquid crystal display panel, the blue light prevention film layer is superposed with the projection of the blue light filtering unit; the blue light prevention film layer is used for blocking light with the wavelength of less than 460 nm.
The first aspect provides a color film substrate, and a blue light prevention film layer is added at a projection position corresponding to a blue light filtering unit and at a position not adjacent to the blue light filtering unit, so that the effect of filtering high-energy blue light is achieved, and the purpose of preventing blue light is achieved.
With reference to the first aspect, the color filter substrate further includes: a protective layer; the protective layer is positioned on one side of the color filter layer, which is far away from the first substrate base plate.
In combination with the first aspect, when the blue light prevention film layer is located on the array substrate, the blue light prevention film layer is disposed between the second substrate and the thin film transistor layer, or the blue light prevention film layer is disposed on one side of the second substrate, which is far away from the thin film transistor layer.
In combination with the first aspect, when the blue light prevention film layer is located on the color film substrate, the blue light prevention film layer is disposed between the protection layer and the color filter layer, or the blue light prevention film layer is disposed on one side of the first substrate away from the protection layer.
With reference to the first aspect, the blue light prevention film layer includes a plurality of first optical film layers and a plurality of second optical film layers that are arranged at intervals in the thickness direction of the substrate base, and the number of layers of the first optical film layers is one more than that of the second optical film layers;
wherein the refractive index of the first optical film layer is greater than the refractive index of the second optical film layer.
With reference to the first aspect, the refractive index range corresponding to the first optical film layer is [1.90,1.92], and the refractive index range corresponding to the second optical film layer is [1.45,1.47 ]; the extinction coefficients of the first optical film layer and the second optical film layer are both in the range of-0.01 and 0.01.
With reference to the first aspect, the thickness of the blue light prevention film layer ranges from [1350nm to 1650nm ].
With reference to the first aspect, the first optical film layer is an indium vanadium oxide layer or a silicon nitride layer, and the second optical film layer is a silicon dioxide layer.
With reference to the first aspect, the number of layers of the first optical film layer is 7, and the number of layers of the second optical film layer is 6.
In a second aspect, an embodiment of the present invention provides a liquid crystal display device, including a liquid crystal display panel as provided in the first aspect or any possible implementation manner of the first aspect.
The utility model provides a liquid crystal display panel and liquid crystal display device, through the projection position department that blue light filtering unit corresponds and prevent the blue light rete with the not adjacent position increase of blue light filtering unit to reach the effect of filtering the blue light of high energy, realize preventing the purpose of blue light.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another lcd panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another liquid crystal display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another liquid crystal display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a blue light prevention film layer according to an embodiment of the present invention;
fig. 7 is a parameter table corresponding to the blue light blocking film provided in fig. 6.
Description of reference numerals:
1-a frame; 2-cover glass; 3-a liquid crystal display module; 30-a liquid crystal display panel; 31-an array substrate; 32-a color film substrate; 33-a liquid crystal layer; 34-an upper polarizing layer; 35-a lower polarizing layer; 4-a backlight module; 5-a circuit board; 10-a liquid crystal display device; 110-a first substrate base plate; 120-a color filter layer; 121-red filter unit; 122-green filter unit; 123-a blue filter unit; 130-black matrix; 140-blue light prevention film layer; 141-a first optical film layer; 142-a second optical film layer; 150-a protective layer; 160-spacer; 210-a second substrate base plate; 220-thin film transistor layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the embodiments of the present invention, "/" indicates an or meaning, for example, a/B may indicate a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.
The directional terms "left", "right", "upper" and "lower" are defined relative to the schematically-placed orientation of the display assembly in the drawings, and it is to be understood that these directional terms are relative concepts that are used for descriptive and clarity relative to each other and that may vary accordingly depending on the orientation in which the color filter substrate or display device is placed.
With the development of display technology, liquid crystal display technology has been widely applied to various electronic devices. An electronic device using a liquid crystal display technology for displaying includes a liquid crystal display device, where the liquid crystal display device generally includes a liquid crystal display panel and a driving device for driving the liquid crystal display panel, and the liquid crystal display panel further includes an array substrate, a color filter substrate, and a liquid crystal layer located between the array substrate and the color filter substrate. The embodiment of the utility model provides a liquid crystal display panel is applied to among the liquid crystal disply device among the electronic equipment.
The electronic device can be a plurality of different types of electronic devices such as a smart phone, a tablet computer, an electronic reader, a vehicle-mounted computer, a navigator, a digital camera, a smart television and a smart wearable device.
The embodiment of the utility model provides a do not carry out any restriction to this.
Fig. 1 shows a schematic structural diagram of a liquid crystal display device 10 according to an embodiment of the present invention. As shown in fig. 1, the main structure of the liquid crystal display device 10 includes a frame 1, a cover glass 2, a liquid crystal display module 3, a backlight module 4, a circuit board 5, and other electronic components including a camera.
As shown in fig. 1, the liquid crystal display module 3 includes a liquid crystal display panel 30, an upper polarizing layer 34 disposed on a side of the liquid crystal display panel 30 close to the cover plate 2, and a lower polarizing layer 35 disposed on a side of the liquid crystal display panel 30 close to the backlight module 4. The liquid crystal display panel 30 includes an array substrate 31, a counter substrate, and a liquid crystal layer 33 disposed between the array substrate 31 and the counter substrate. The array substrate 31 and the opposite substrate are bonded together by the sealant, so that the liquid crystal layer 33 is limited in the region surrounded by the sealant. When the color filter layer 120 is disposed on the opposite substrate, the opposite substrate is the color filter substrate 32.
The longitudinal section of the frame 1 is U-shaped, the liquid crystal display module 3, the backlight module 4, the circuit board 5 and other electronic accessories including a camera and the like are arranged in the frame 1, the backlight module 4 is positioned below the liquid crystal display module 3, the circuit board 5 is positioned between the backlight module 4 and the frame 1, and the cover plate 2 is positioned on one side of the liquid crystal display module 3 far away from the backlight module 4. The cover plate 2 may be, for example, transparent glass.
The display principle of the liquid crystal display device 10 of fig. 1 is: the backlight module 4 emits white light, which is formed into white polarized light with a specific polarization direction through the lower polarizing layer 35, and then the white polarized light is incident to the array substrate 31, and is filtered by the color filter layer 120 on the color film substrate 32 to form polarized light of three primary colors of red, green and blue. When the polarization direction of the polarized light is perpendicular to the polarization direction of the upper polarizing layer 34, the polarized light cannot pass through the upper polarizing layer 34, and no light exits at this time; when the polarization direction of the polarized light is parallel to the polarization direction of the upper polarizing layer 34, the polarized light can pass through the upper polarizing layer 34, and the intensity of the emergent light is strongest at this time. Since the liquid crystal molecules have a light-rotating property to polarized light, the specific arrangement direction of the molecules can change the polarization direction of the polarized light, and when the arrangement direction of the liquid crystal molecules is controlled by the electric fields of the pixel electrode and the common electrode to rotate, the polarization direction of the polarized light passing through the liquid crystal molecules is also changed, so that the amount of the polarized light emitted from the upper polarizing layer 34 can be controlled. When the pixel electrodes and the common electrode regularly control the liquid crystal molecules to rotate according to the electric signals applied to the respective electrodes, the light of the red, green and blue sub-pixels regularly transmits through the upper polarizing layer 34, and finally a color image is formed.
The light path propagation sequence is as follows: the backlight module 4 emits light through the lower polarizing layer 35, the array substrate 31, the liquid crystal layer 33, the color film substrate 32, and the upper polarizing layer 34 in sequence, and then emits light out of the cover plate 2.
The backlight module 4 generally needs to use LEDs to provide backlight, and the white light emitted from the LED light source is mainly formed by exciting the phosphor with blue light having a wavelength of 440nm-460nm, and the shorter the wavelength of the blue light is, the stronger the excitation capability is.
However, since the short-wave blue light has extremely high energy and can penetrate through the crystalline lens to the retina, the short-wave blue light can cause certain damage to the eyes of users, and even cause permanent damage to the vision of serious people.
At present, in order to reduce the damage of blue light, each LCD manufacturer mainly prevents the blue light by the schemes of surface film pasting, software adjustment, backlight source LED changing and the like. But the surface film has the defects of non-uniform optical parameters and possible secondary damage; the software adjustment enables the RGB brightness to be reduced simultaneously, and the loss of the brightness of the liquid crystal display device is large; the backlight source LED is changed, and the blue light with long wavelength is used for excitation, so that the blue light excitation efficiency is reduced, the power consumption of the LED lamp strip is increased, and the power consumption of the liquid crystal display device is increased.
In summary, in order to reduce the damage of blue light, the liquid crystal display panel adopts schemes of surface film pasting, software adjustment, LED change and the like, which have certain defects, so how to effectively reduce blue light is a problem to be solved urgently.
In view of this, the embodiment of the present invention provides a liquid crystal display panel, which increases the position of the projection position corresponding to the blue light filtering unit in the liquid crystal display panel and not adjacent to the blue light filtering unit to prevent the blue light film layer, so as to achieve the effect of filtering the blue light with high energy, and achieve the purpose of preventing the blue light.
The structure of the liquid crystal display panel according to the present invention will be described in detail with reference to fig. 2 to 7.
Fig. 2 is a schematic structural diagram of a liquid crystal display panel 30 provided by the present invention, fig. 3 is a schematic structural diagram of another liquid crystal display panel 30 provided by the present invention, and fig. 4 and fig. 5 are schematic structural diagrams of another liquid crystal display panel 30 provided by the present invention.
As shown in fig. 2 to 5, the present invention provides a liquid crystal display panel 30, including: the liquid crystal display panel comprises an array substrate 31, a color film substrate 32 and a liquid crystal layer 33, wherein the array substrate 31 and the color film substrate 32 are stacked; the color filter substrate 32 includes a first substrate 110 and a color filter layer 120 stacked, and the color filter layer 120 includes a blue filter unit 123. The array substrate 31 includes a second substrate 210 and a thin-film transistor layer 220 that are stacked.
It is to be understood that, as shown in connection with fig. 1, the first substrate 110 is located on a side of the color filter layer 120 away from the liquid crystal layer 33, that is, the first substrate 110 and the color filter layer 120 are stacked, and the color filter layer 120 is closer to the liquid crystal layer 33 than the first substrate 110.
As shown in fig. 1, the first substrate 110, the color filter layer 120, the liquid crystal layer 33, the thin film transistor layer 220, and the second substrate 210 are sequentially arranged along the thickness direction of the liquid crystal display panel 30, and the first substrate 110 is close to the upper polarizing layer 34 and the second substrate 210 is close to the lower polarizing layer 35.
It should be understood that the first substrate 110 and the second substrate 210 are transparent substrates and can be made of quartz, glass, transparent plastic, or the like.
The liquid crystal display panel 30 further includes a blue light prevention film layer 140, and the blue light prevention film layer 140 is not adjacent to the color filter layer 120; in addition, along the thickness direction of the liquid crystal display panel 30, the projection of the blue-light-proof film layer 140 coincides with the projection of the blue light filtering unit 123; the blue light prevention film layer 140 is used for blocking light with a wavelength of less than 460 nm.
It should be understood that, as shown in fig. 2 to fig. 5, the liquid crystal display panel 30 includes the first substrate 110, the color filter layer 120, and the blue light prevention film layer 140 is not adjacent to the color filter layer 120, which means that a film layer is further disposed between the blue light prevention film layer 140 and the color filter layer 120, and the film layer may be the first substrate 110 or another film layer, or the blue light prevention film layer 140 may also be located in the array substrate 31, and at this time, the blue light prevention film layer 140 is also not adjacent to the color filter layer 120.
It should be understood that the color filter layer 120 is used to filter white light into light of various colors, for example, light of three primary colors, and accordingly, the color filter layer 120 includes a red filter unit 121 and a green filter unit 122 in addition to a blue filter unit 123.
Based on this structure, in order to block blue light without affecting the light transmission of the red filter unit 121 and the green filter unit 122, the blue light prevention film layer 140 is only disposed at a position corresponding to the blue filter unit 123, that is, along the thickness direction of the liquid crystal display panel 30, the blue light prevention film layer 140 is disposed at a position coinciding with the projection of the blue filter unit 123, and is not disposed at other positions.
It is understood that light with a wavelength less than 460nm is a blue light that is harmful to vision. Therefore, the blue light prevention film layer 140 is additionally arranged in the liquid crystal display panel 30, so that blue light can be prevented when the liquid crystal display panel 30 is prepared, and compared with the prior art, the blue light damage can be reduced, the adjustment is more uniform, and the power consumption of backlight is not increased.
The utility model provides a liquid crystal display panel, through the projection position department that blue light filtering unit corresponds and prevent the blue light rete with the not adjacent position increase of blue light filtering unit to reach the effect of filtering the blue light of high energy, realize preventing the purpose of blue light.
Optionally, as a possible implementation example, the liquid crystal display panel 30 further includes: a protective layer 150; the protection layer 150 is located on a side of the color filter layer 120 away from the first substrate base plate 110. That is, the protective layer 150 is located on the side close to the liquid crystal layer 33.
That is, as shown in fig. 1, the first substrate 110, the color filter layer 120, the protective layer 150, the liquid crystal layer 33, the thin-film transistor layer 220, and the second substrate 210 are sequentially arranged along the thickness direction of the liquid crystal display panel 30.
The passivation layer 150 is used to block impurity ions and prevent impurities in the color filter layer 120 from being separated out and affecting the display effect.
Optionally, as an embodiment of a possible implementation, as shown in fig. 2 and fig. 3, when the blue-light prevention film layer 140 is located on the array substrate 31, the blue-light prevention film layer 140 is disposed between the second substrate 210 and the thin-film transistor layer 220, or the blue-light prevention film layer 140 is disposed on a side of the second substrate 210 away from the thin-film transistor layer 220.
As shown in fig. 2, on the array substrate 31, the blue light prevention film layer 140 is disposed between the second substrate 210 and the thin-film transistor layer 220, that is, along the thickness direction of the liquid crystal display panel 30, the thin-film transistor layer 220, the blue light prevention film layer 140, and the second substrate 210 are sequentially arranged.
Wherein, prevent between blue light rete 140 and thin-film transistor layer 220 to and prevent that blue light rete 140 and second substrate base plate 210 can direct contact or can also add other retes between the two, the utility model discloses do not carry out any restriction to this.
Alternatively, as shown in fig. 3, the blue light prevention film layer 140 is disposed on a side of the second substrate 210 away from the thin-film transistor layer 220, that is, along the thickness direction of the liquid crystal display panel 30, the thin-film transistor layer 220, the second substrate 210, and the blue light prevention film layer 140 are sequentially arranged. At this time, the blue light prevention film layer 140 is positioned between the second substrate 210 and the lower polarizing layer 35.
Wherein, prevent blue light rete 140 and second substrate base plate 210 can direct contact or can also add other retes between the two, the utility model discloses do not carry out any restriction to this.
Optionally, as a possible implementation manner, when the blue-light-prevention film layer 140 is located on the color film substrate 32, the blue-light-prevention film layer 140 is disposed on a side of the protection layer 150 away from the color filter layer 120, or the blue-light-prevention film layer 140 is disposed on a side of the first substrate 110 away from the color filter layer 120.
As shown in fig. 4, on the color filter substrate 32, the blue light-proof film layer 140 is disposed on a side of the protection layer 150 away from the color filter layer 120, that is, along the thickness direction of the liquid crystal display panel 30, the first substrate 110, the color filter layer 120, the protection layer 150, and the blue light-proof film layer 140 are sequentially arranged.
Wherein, prevent blue light rete 140 and protective layer 150 can direct contact or can also add other retes between the two, the utility model discloses do not carry out any restriction to this.
Alternatively, as shown in fig. 5, the blue light prevention film layer 140 is disposed on a side of the first substrate 110 away from the color filter layer 120, that is, along the thickness direction of the liquid crystal display panel 30, the blue light prevention film layer 140, the first substrate 110, the color filter layer 120 and the protection layer 150 are sequentially arranged. At this time, the blue light prevention film layer 140 is positioned between the upper polarizing layer 34 and the first base substrate 110.
Wherein, prevent blue light rete 140 and first substrate base plate 110 can direct contact or can also add other retes between the two, the utility model discloses do not carry out any restriction to this.
It should be understood that, in order to prevent the light of each color from interfering with each other, at the positions corresponding to the intervals of the red filter unit 121, the green filter unit 122, and the blue filter unit 123, as shown in fig. 2 to 5, the color filter substrate 32 generally further includes a black matrix 130 to shield light.
The black matrix 130 generally has a certain width, so the size of the blue light prevention film 140 can be slightly larger than the projection of the blue filter unit 123 during the manufacturing process, for example, the size (e.g., length and width) of the blue light prevention film 140 parallel to the plane of the first substrate 110 is one time larger than the width of the black matrix 130 of the blue filter unit 123.
In addition to the above structure, as shown in fig. 2 to 5, the color filter substrate 32 generally further includes a spacer 160.
As shown in fig. 2 and 3, when the blue light blocking film layer 140 is disposed on the array substrate 31, the spacers 160 on the color filter substrate 32 are not affected.
As shown in fig. 4, when the blue light-proof film layer 140 is located on the color film substrate 32 and the blue light-proof film layer 140 is disposed on a side of the protection layer 150 away from the color filter layer 120, since the spacer 160 is also disposed on a side of the protection layer 150 away from the color filter layer 120, the blue light-proof film layer 140 and the spacer 160 are located on the same side, at this time, the blue light-proof film layer 140 may be disposed between gaps of the spacer 160, and since the thickness of the blue light-proof film layer 140 is smaller, the liquid crystal layer 33 will not be affected.
As shown in fig. 5, when the blue light-blocking film layer 140 is disposed on the color film substrate 32 and the blue light-blocking film layer 140 is disposed on a side of the first substrate 110 away from the color filter layer 120, the spacer 160 is disposed on a side of the protection layer 150 away from the first substrate 110.
Optionally, as a possible implementation manner, the blue light prevention film layer 140 includes a plurality of first optical film layers 141 and a plurality of second optical film layers 142 arranged at intervals in the thickness direction of the first substrate base plate 110, and the number of the first optical film layers 141 is one more than that of the second optical film layers 142.
The refractive index of the first optical film layer 141 is greater than the refractive index of the second optical film layer 142.
It should be understood that the first optical film layer 141 and the second optical film layer 142 spaced apart from each other may refract light multiple times to prevent blue light in a manner of absorbing blue light having a wavelength of less than 460 nm.
It should be understood that the number of the first optical film layer 141 is one more than that of the second optical film layer 142, so that when the first optical film layer 141 and the second optical film layer are arranged at intervals, the two outermost optical film layers are the first optical film layer 141.
Optionally, as a possible implementation manner, a value range of a refractive index corresponding to the first optical film layer 141 is [1.90,1.92], and a value range of a refractive index corresponding to the second optical film layer 142 is [1.45,1.47 ]; the extinction coefficients of the first optical film 141 and the second optical film 142 both range from [ -0.01,0.01 ].
Optionally, as a possible implementation manner, the first optical film layer 141 is an indium vanadium oxide layer or a silicon nitride layer, and the second optical film layer 142 is a silicon dioxide layer.
It is to be understood that both materials are advantageous for practical on-stream use and, being suitable for dry etching, may facilitate the etching process.
Optionally, as a possible implementation manner, the thickness of the blue light prevention film layer 140 is in a range of [1350nm,1650nm ].
Illustratively, the thickness of the blue-blocking film layer 140 is 1484 nm. The blue light prevention film 140 with the thickness is not protruded to affect the normal liquid crystal alignment and rotation when the protection layer 150 is located on the side away from the color filter layer 120.
Optionally, as a possible implementation manner, fig. 6 is a schematic structural diagram of a blue light prevention film layer 140 provided in an embodiment of the present invention; fig. 7 is a parameter table of the blue light blocking film layer 140 provided in fig. 6. As shown in fig. 6 and 7, the number of the first optical film layer 141 is 7, and the number of the second optical film layer 142 is 6.
As shown in fig. 6, the blue light prevention film 140 includes 13 optical films, wherein the number of the first optical film 141 is 7, and the number of the second optical film 142 is 6, and the first optical film 141 and the second optical film 142 are arranged at intervals along the thickness direction of the substrate base substrate.
As shown in fig. 7, the 1 st first optical film layer 141 has an optical film thickness of 0.511 and a film thickness of 136 nm; the optical film thickness corresponding to the second optical film layer 142 of the 2 nd layer is 0.194 nm, 68nm, etc. The parameters of the other layers are shown in fig. 6.
The utility model also provides a liquid crystal display device, include: backlight module and liquid crystal display panel as above.
The embodiment of the utility model provides a liquid crystal display device's beneficial effect is the same with the beneficial effect that above-mentioned liquid crystal display panel corresponds, no longer gives unnecessary details here.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A liquid crystal display panel, comprising: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal layer, wherein the array substrate and the color film substrate are arranged in a stacked mode; the color film substrate comprises a first substrate and a color filter layer which are stacked, and the color filter layer comprises a blue filter unit; the array substrate comprises a second substrate and a thin film transistor layer which are stacked;
the liquid crystal display panel also comprises a blue light prevention film layer, and the blue light prevention film layer is not adjacent to the color filter layer; in addition, along the thickness direction of the liquid crystal display panel, the blue light prevention film layer is superposed with the projection of the blue light filtering unit; the blue light prevention film layer is used for blocking light with the wavelength of less than 460 nm.
2. The liquid crystal display panel according to claim 1, wherein the color filter substrate further comprises: a protective layer; the protective layer is positioned on one side of the color filter layer, which is far away from the first substrate base plate.
3. The LCD panel of claim 2, wherein the blue light prevention film layer is disposed between the second substrate and the TFT layer or disposed on a side of the second substrate away from the TFT layer when the blue light prevention film layer is disposed on the array substrate.
4. The liquid crystal display panel according to claim 2, wherein when the blue light prevention film layer is disposed on the color filter substrate, the blue light prevention film layer is disposed on a side of the protection layer away from the color filter layer, or the blue light prevention film layer is disposed on a side of the first substrate away from the color filter layer.
5. The liquid crystal display panel according to claim 3 or 4, wherein the blue light prevention film layer comprises a plurality of first optical film layers and a plurality of second optical film layers which are arranged at intervals in the thickness direction of the substrate base, and the number of the first optical film layers is one more than that of the second optical film layers;
wherein the refractive index of the first optical film layer is greater than the refractive index of the second optical film layer.
6. The liquid crystal display panel according to claim 5, wherein the refractive index of the first optical film layer is in a range of [1.90,1.92], and the refractive index of the second optical film layer is in a range of [1.45,1.47 ]; the extinction coefficients of the first optical film layer and the second optical film layer are both in the range of-0.01 and 0.01.
7. The LCD panel of claim 6, wherein the thickness of the blue light blocking film layer is in the range of [1350nm,1650nm ].
8. The liquid crystal display panel of claim 7, wherein the first optical film layer is an indium vanadium oxide layer or a silicon nitride layer, and the second optical film layer is a silicon dioxide layer.
9. The liquid crystal display panel according to any one of claims 6 to 8, wherein the number of the first optical film layers is 7, and the number of the second optical film layers is 6.
10. A liquid crystal display device, comprising: a backlight module and a liquid crystal display panel as claimed in any one of claims 1 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815374A (en) * | 2022-05-13 | 2022-07-29 | 惠科股份有限公司 | Color film substrate and display panel |
| WO2023201812A1 (en) * | 2022-04-18 | 2023-10-26 | 深圳市华星光电半导体显示技术有限公司 | Display image adjustment method and apparatus, and display apparatus |
-
2021
- 2021-05-20 CN CN202121097649.1U patent/CN215219370U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023201812A1 (en) * | 2022-04-18 | 2023-10-26 | 深圳市华星光电半导体显示技术有限公司 | Display image adjustment method and apparatus, and display apparatus |
| CN114815374A (en) * | 2022-05-13 | 2022-07-29 | 惠科股份有限公司 | Color film substrate and display panel |
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