CN109407366B - Liquid crystal display device having a plurality of pixel electrodes - Google Patents
Liquid crystal display device having a plurality of pixel electrodes Download PDFInfo
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- CN109407366B CN109407366B CN201811631504.8A CN201811631504A CN109407366B CN 109407366 B CN109407366 B CN 109407366B CN 201811631504 A CN201811631504 A CN 201811631504A CN 109407366 B CN109407366 B CN 109407366B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a liquid crystal display device which comprises a backlight component, a liquid crystal component and a microstructure optical film, wherein the microstructure optical film is arranged on the upper surface of the liquid crystal component, light rays emitted by the backlight component are emitted into the liquid crystal component and the microstructure optical film along the direction vertical to or close to the extending direction of the liquid crystal component, and the microstructure optical film scatters the incident light rays emitted into the microstructure optical film. The liquid crystal display device has the advantages of wide visual angle and good contrast.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display device.
Background
Liquid crystal display is the most common flat panel display technology at present, and is widely applied to various fields such as televisions, mobile phones, vehicles, industry, medical treatment and the like. The principle of liquid crystal display is that the transmittance of polarized light is modulated according to the birefringence effect of liquid crystal molecules, so that bright and dark display is realized, and the birefringence effect of the liquid crystal molecules has a relation with the direction of incident light. The existing liquid crystal display device comprises a liquid crystal box (an upper glass and a lower glass sandwich a layer of liquid crystal, which is called as a liquid crystal box) and a backlight module, wherein the backlight module emits light to the liquid crystal box, the penetration rate of polarized light is different due to the difference of optical paths of the light, the penetration rate of the polarized light which enters the liquid crystal box along the vertical direction is extremely small (close to 0, which is called as a dark state), the penetration rate of the polarized light which enters the liquid crystal box along the oblique direction is not 0, and the light leakage phenomenon occurs, so that the contrast of the liquid crystal display device is reduced, the visual angle is narrowed, and the use requirements of users cannot be met.
Disclosure of Invention
The invention provides a liquid crystal display device, and aims to solve the problem that the visual angle of the liquid crystal display device is narrow in the prior art.
In order to achieve the above object, the liquid crystal display device provided by the present invention includes a backlight assembly, a liquid crystal assembly, and a microstructure optical film, wherein the microstructure optical film is disposed on an upper surface of the liquid crystal assembly, light emitted from the backlight assembly is incident into the liquid crystal assembly and the microstructure optical film along a direction perpendicular or close to a direction perpendicular to an extending direction of the liquid crystal assembly, and the microstructure optical film scatters incident light incident into the microstructure optical film.
Preferably, the incident surface of the microstructure optical film is attached to the upper surface of the liquid crystal module, a plurality of diverging surfaces are formed on the microstructure optical film and away from the exit surface of the liquid crystal module, the diverging surfaces emit the incident light rays along a first direction and a second direction, the first direction is perpendicular to the extending direction of the liquid crystal module, and the second direction is inclined to the extending direction of the liquid crystal module.
Preferably, the liquid crystal cell includes a plurality of pixel units, the microstructured optical film includes a plurality of microstructure units, the pixel units and the microstructure units are in the same number and are arranged in a one-to-one correspondence, and the divergence surface is formed on an exit surface of each microstructure unit, which faces away from the liquid crystal assembly.
Preferably, the diverging surface includes a horizontal surface and at least one inclined surface, the inclined surface is arranged in a gradually expanding manner along a direction away from the liquid crystal assembly, the horizontal surface emits the incident light along the first direction, and the inclined surface emits the incident light along the second direction.
Preferably, the diverging surface includes two inclined surfaces, the two inclined surfaces are a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface are respectively disposed on two sides of the horizontal plane, the first inclined surface is inclined towards one side of the liquid crystal assembly, and the second inclined surface is inclined towards the other side of the liquid crystal assembly.
Preferably, the divergent surface includes one of the inclined surfaces inclined toward one side or the other side of the liquid crystal cell.
Preferably, the divergent surface is a concave curved surface, and a convex side of the concave curved surface faces the liquid crystal assembly.
Preferably, the microstructure units are arranged in an array, and any two adjacent microstructure units are arranged closely.
Preferably, the microstructured optical film is made of an anisotropic material.
Preferably, the backlight assembly includes a light source unit, a support and an optical film set, the light source unit is mounted on the support and is located below or beside the optical film set, and the optical film set emits light emitted from the light source unit into the liquid crystal module and the micro-structured optical film along a direction perpendicular to or close to a direction perpendicular to an extending direction of the liquid crystal module.
In the liquid crystal display device, the microstructure optical film and the liquid crystal module are sequentially stacked from top to bottom. The backlight assembly emits light rays towards the liquid crystal assembly, the light rays are emitted into the liquid crystal assembly and the microstructure optical film along the direction vertical to or close to the extending direction of the liquid crystal assembly, the light leakage phenomenon is avoided, the contrast ratio of the liquid crystal display device is improved, the microstructure optical film can disperse the light rays emitted into the microstructure optical film along different directions, the visual angle of the liquid crystal display device is expanded, the visual angle of the liquid crystal display device is widened, and the use requirements of users are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a liquid crystal display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the microstructure unit of FIG. 1;
FIG. 3 is a schematic diagram of the optical refraction law;
FIG. 4 is a schematic view of a liquid crystal display device according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of the microstructure unit in fig. 4.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Liquid crystal display device having a plurality of pixel electrodes | 2 | |
| 10 | Liquid crystal assembly | 3 | |
| 1 | Microstructured |
31 | |
| 11 | Microstructure unit | 4 | |
| 12 | |
20 | |
| 121 | |
5 | |
| 122 | |
6 | |
| 122a | First |
7 | Optical film set |
| 122b | Second inclined plane |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The description of the orientations of "up", "down", "left", "right", etc. in the present invention, with reference to the orientations shown in fig. 1 and 4, is merely used to explain the relative positional relationship between the components in the postures shown in fig. 1 and 4, and if the specific posture is changed, the directional indication is changed accordingly.
As shown in fig. 1 to 5, the present invention provides a liquid crystal display device 100, wherein the liquid crystal display device 100 includes a backlight assembly 20 and a liquid crystal assembly 10. It can be understood that the liquid crystal module 10 includes a liquid crystal box 3, an upper polarizer 2, and a lower polarizer 4, the upper polarizer 2 is disposed on the upper surface of the liquid crystal box 3, the lower polarizer 4 is disposed on the lower surface of the liquid crystal box 3, and the backlight module 20 is located below the lower polarizer 4. The liquid crystal display device 100 further includes a micro-structural optical film 1, the micro-structural optical film 1 is disposed on the upper surface of the liquid crystal module 10, specifically, the micro-structural optical film 1 is disposed on the upper surface of the upper polarizer 2, light emitted from the backlight module 20 is emitted into the liquid crystal module 10 and the micro-structural optical film 1 along a direction perpendicular or close to a direction perpendicular to the extending direction of the liquid crystal module 10, and the micro-structural optical film 1 can scatter incident light emitted therein.
In the liquid crystal display device 100 of the present embodiment, the microstructure optical film 1, the upper polarizer 2, the liquid crystal cell 3, and the lower polarizer 4 are sequentially stacked from top to bottom. The backlight assembly 20 emits light toward the liquid crystal assembly 10, and the light is emitted into the liquid crystal assembly 10 and the microstructure optical film 1 along a direction perpendicular to or close to a direction perpendicular to the extending direction of the liquid crystal assembly 10, so that a light leakage phenomenon is avoided, and the contrast of the liquid crystal display device 100 is improved. The following description describes light rays incident on the liquid crystal element 10 and the microstructured optical film 1 in a direction perpendicular or nearly perpendicular to the extending direction of the liquid crystal element 10 as perpendicular light rays, and the incident light rays incident on the microstructured optical film 1 are perpendicular light rays. The backlight assembly 20 emits vertical light rays, the vertical light rays sequentially pass through the lower polarizer 4, the liquid crystal cell 3 and the upper polarizer 2 and then enter the micro-structural optical film 1, the micro-structural optical film 1 can emit and scatter the vertical light rays emitted into the micro-structural optical film 1, namely the micro-structural optical film 1 can disperse the vertical light rays emitted into the micro-structural optical film in different directions, so that the visual angle of the liquid crystal display device 100 is expanded, the visual angle of the liquid crystal display device 100 is widened, and the use requirements of users are met. The liquid crystal display device 100 of the embodiment has the advantages of wide viewing angle and good contrast.
It should be understood that, in the present embodiment, the vertical light refers to light perpendicular or nearly perpendicular to the extending direction of the liquid crystal assembly 10, in the present embodiment, the extending direction of the liquid crystal assembly 10 is the left-right direction shown in fig. 1 and 4, and the direction perpendicular or nearly perpendicular to the extending direction of the liquid crystal assembly 10 is the up-down direction shown in fig. 1 and 4. In the present embodiment, the angle between the direction approximately perpendicular to the extending direction of the liquid crystal element 10 and the direction perpendicular to the extending direction of the liquid crystal element 10 may be within 5 °. The dashed arrows in fig. 1 and 4 represent light rays.
Specifically, the incident surface of the micro-structured optical film 1 of the embodiment is attached to the upper surface of the upper polarizer 2, a plurality of diverging surfaces 12 are formed on the exit surface of the micro-structured optical film 1 away from the upper polarizer 2, the diverging surfaces 12 emit incident light in a first direction and a second direction, the first direction is perpendicular to the extending direction of the liquid crystal module 10, and the second direction is inclined to the extending direction of the liquid crystal module 10. The liquid crystal module 10 of the present embodiment extends in a horizontal direction, and the first direction is a vertical direction. The horizontal direction is a left-right direction shown in fig. 1 and 4, the first direction is an up-down direction shown in fig. 1 and 4, and the second direction is a direction between the horizontal direction and the vertical direction, i.e., the second direction forms an acute angle with the horizontal direction.
The light emitted from the upper polarizer 2 passes through the incident surface of the micro-structural optical film 1 along the vertical direction and is emitted into the micro-structural optical film 1, due to the effect of the plurality of divergent surfaces 12 on the emergent surface of the micro-structural optical film 1, a part of incident light passes through the divergent surfaces 12 and is emitted along the first direction, and the other part of incident light passes through the divergent surfaces 12 and is emitted along the second direction, so that the incident light is diverged.
In this embodiment, the liquid crystal cell 3 includes a plurality of pixel units 31, the microstructured optical film 1 includes a plurality of microstructure units 11, the number of the pixel units 31 is the same as that of the microstructure units 11, the pixel units 31 and the microstructure units 11 are arranged in a one-to-one correspondence manner, and a divergence surface 12 is formed on an exit surface of each microstructure unit 11, which is away from the upper polarizer 2.
It should be noted that, as shown in fig. 1 and fig. 4, the plurality of pixel units 31 of the present embodiment may include a red pixel unit, a green pixel unit, and a blue pixel unit, wherein the red pixel unit, the green pixel unit, and the blue pixel unit are arranged in a periodically repeating manner to realize different color pictures. The number of the pixel units 31 is the same as that of the microstructure units 11, and the microstructure units 11 are arranged in a one-to-one correspondence manner, that is, each pixel unit 31 corresponds to one microstructure unit 11, so that the design is reasonable. In this embodiment, the plurality of microstructure units 11 are arranged in an array, and any two adjacent microstructure units 11 are closely attached to each other, so that the incident light is fully diffused, and the color of the picture is uniform.
As shown in fig. 3, according to the basic optical refraction law, light rays are refracted at material boundaries with different refractive indexes, and the propagation direction of the light rays is changed, and fig. 3 shows the case where light propagates from a medium with a refractive index n into air (with a refractive index of about 1), where sini/sin θ = n, n > 1, i > θ.
In this embodiment, the divergent surface 12 includes a horizontal surface 121 and at least one inclined surface 122, the inclined surface 122 is disposed in a divergent manner along a direction away from the upper polarizer 2, the horizontal surface 121 emits the incident light along a first direction, and the inclined surface 122 emits the incident light along a second direction. A part of incident light entering the microstructure unit 11 from the incident surface of the microstructure unit 11 is emitted vertically from the horizontal surface 121, and another part of incident light is refracted at the inclined surface 122 and emitted along the second direction after being refracted, so that light is dispersed, the visual angle of the liquid crystal display device 100 is expanded, and the visual angle of the liquid crystal display device 100 is widened.
In one embodiment, the divergent surface 12 includes two inclined surfaces 122, the two inclined surfaces 122 are a first inclined surface 122a and a second inclined surface 122b, the first inclined surface 122a and the second inclined surface 122b are respectively disposed on two sides of the horizontal plane 121, the first inclined surface 122a is inclined toward one side of the liquid crystal assembly 10, and the second inclined surface 122b is inclined toward the other side of the liquid crystal assembly 10. Specifically, as shown in fig. 1 and 2, the first inclined surface 122a is connected to the left side of the horizontal surface 121, and the first inclined surface 122a is inclined toward the left side of the liquid crystal assembly 10, that is, the left end of the first inclined surface 122a is higher than the right end of the first inclined surface 122a; the second inclined surface 122b is connected to the right side of the horizontal surface 121, and the second inclined surface 122b is inclined toward the right side of the liquid crystal assembly 10, that is, the right end of the second inclined surface 122b is higher than the left end of the second inclined surface 122 b. A part of incident light entering the microstructure unit 11 from the incident surface of the microstructure unit 11 is emitted vertically from the horizontal surface 121, a part of the incident light is refracted at the first inclined surface 122a and emitted in the upper left direction, and a part of the incident light is refracted at the second inclined surface 122b and emitted in the upper right direction, so that the light is diffused to a high degree, and the viewing angle of the liquid crystal display device 100 is effectively widened.
In this embodiment, an included angle formed between the first inclined surface 122a and the horizontal surface 121 is α, an included angle formed between the second inclined surface 122b and the horizontal surface 121 is β, the sizes of the α and β angles and the refractive index of the microstructure unit 11 can be selected according to actual situations, and α may be equal to β, or may not be equal to β, so as to adjust the visible angle range of the liquid crystal display device 100.
To meet particular needs, in another embodiment, the diverging surface 12 may include an inclined surface 122, and the inclined surface 122 may be inclined toward one side of the liquid crystal assembly 10 or inclined toward the other side of the liquid crystal assembly 10. Specifically, the inclined surface 122 may be located on the left or right side of the horizontal surface 121, and when the inclined surface 122 is located on the left side of the horizontal surface 121, the inclined surface 122 corresponds to the first inclined surface 122a; when the inclined surface 122 is located on the right side of the horizontal surface 121, the inclined surface 122 corresponds to the second inclined surface 122b, so that the liquid crystal display device 100 can be seen only in one direction, and alignment observation can be performed.
As shown in fig. 4 and 5, in other embodiments, the divergent surface 12 is a concave curved surface, and the convex side of the concave curved surface faces the upper polarizer 2, so that the divergent surface 12 is similar to a concave lens, and due to the divergent property of the concave lens to light, the light entering the microstructure unit 11 from the incident surface of the microstructure unit 11 passes through the concave curved surface and is diverged and emitted in the direction shown in fig. 4, the divergent direction is related to the curvature radius of the concave curved surface and the refractive index of the microstructure unit 11, and the visual angle range of the liquid crystal display device 100 can be adjusted by adjusting the curvature radius of the concave curved surface and the refractive index of the microstructure unit 11.
The microstructure optical film 1 of the embodiment is made of an anisotropic material, the divergent surface 12 can enable polarized light with the same polarization direction as the emergent light of the liquid crystal box 3 to penetrate through, and the divergent surface 12 can reflect the polarized light with the different polarization direction of the emergent light of the liquid crystal box 3 back to the liquid crystal box 3, so that the light utilization rate and the contrast of the liquid crystal display device 100 are improved. The microstructure optical film 1 of the embodiment may be made of quartz or mica and other materials in the prior art, and the microstructure optical film 1 may be used as an independent transparent optical film, or may be attached to other optical films, such as the upper polarizer 2, to form a composite optical film.
In this embodiment, the backlight assembly 20 includes a light source device 5, a support 6 and an optical film set 7, the optical film set 7 includes at least one layer of brightness enhancement film, the light source device 5 is installed on the support 6, the light source device 5 is located below or beside the optical film set 7, and the optical film set 7 can emit light emitted from the light source device 5 into the liquid crystal device 10 and the microstructure optical film 1 along a direction perpendicular to the liquid crystal device 10.
The light source unit 5 of the present embodiment may be an LED lamp of the related art. The LED lamp emits light rays towards the optical module, the optical film group 7 can emit the light rays emitted by the light source component 5 into the liquid crystal component 10 and the microstructure optical film 1 along the direction vertical to the liquid crystal component 10, the light ray penetration rate of the liquid crystal box 3 is ensured to be the same or close to the same, and the light leakage phenomenon is avoided. The optical film group 7 of the present embodiment may adopt a conventional technique.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields directly/indirectly applied to the present invention are included in the scope of the present invention.
Claims (8)
1. The liquid crystal display device is characterized by comprising a backlight component, a liquid crystal component and a microstructure optical film, wherein the microstructure optical film is arranged on the upper surface of the liquid crystal component, light rays emitted by the backlight component are emitted into the liquid crystal component and the microstructure optical film along the direction vertical to or close to the extending direction of the liquid crystal component, the incident surface of the microstructure optical film is comprehensively attached to the upper surface of the liquid crystal component, the emergent surface of the microstructure optical film is arranged away from the liquid crystal component, and the microstructure optical film emits the incident light rays emitted into the microstructure optical film from the emergent surface;
a plurality of diverging surfaces arranged at intervals are formed on the emergent surface, the diverging surfaces emit the incident light rays along a first direction and a second direction, the first direction is vertical to the extending direction of the liquid crystal assembly, and the second direction is inclined to the extending direction of the liquid crystal assembly;
the liquid crystal box comprises a plurality of pixel units, the microstructure optical film comprises a plurality of microstructure units, the number of the pixel units is consistent with that of the microstructure units, the pixel units and the microstructure units are arranged in a one-to-one correspondence mode, and the divergence surface is formed on the emergent surface, deviating from the liquid crystal assembly, of each microstructure unit.
2. The liquid crystal display device of claim 1, wherein the diverging surface comprises a horizontal surface and at least one inclined surface, the inclined surface being disposed in a diverging manner in a direction away from the liquid crystal element, the horizontal surface emitting the incident light in the first direction, the inclined surface emitting the incident light in the second direction.
3. The liquid crystal display device of claim 2, wherein the divergent surface comprises two inclined surfaces, the two inclined surfaces are a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface are respectively arranged on two sides of the horizontal plane, the first inclined surface is inclined towards one side of the liquid crystal assembly, and the second inclined surface is inclined towards the other side of the liquid crystal assembly.
4. The liquid crystal display device of claim 2, wherein the diverging face includes one of the inclined faces which is inclined toward one side or the other of the liquid crystal cell.
5. The liquid crystal display device of claim 1, wherein the diverging surface is a concave curved surface, a convex side of the concave curved surface facing the liquid crystal assembly.
6. The liquid crystal display device of claim 1, wherein the plurality of microstructure units are arranged in an array, and any two adjacent microstructure units are disposed in close proximity.
7. The liquid crystal display device of claim 1, wherein the microstructured optical film is made of an anisotropic material.
8. The liquid crystal display device of any one of claims 1-7, wherein the backlight assembly comprises a light source unit, a support, and an optical film assembly, the light source unit is mounted on the support and is located below or beside the optical film assembly, and the optical film assembly emits light emitted from the light source unit into the liquid crystal assembly and the microstructured optical film in a direction perpendicular or nearly perpendicular to the extending direction of the liquid crystal assembly.
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| CN201811631504.8A CN109407366B (en) | 2018-12-28 | 2018-12-28 | Liquid crystal display device having a plurality of pixel electrodes |
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| CN113156695A (en) * | 2021-04-06 | 2021-07-23 | Tcl华星光电技术有限公司 | Visual angle diffusion film and display panel |
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| US8553168B2 (en) * | 2011-04-27 | 2013-10-08 | Finity Labs | Optical film for increasing the viewing angle of liquid crystal display devices |
| CN104216173A (en) * | 2014-09-30 | 2014-12-17 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
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| CN203658705U (en) * | 2013-12-31 | 2014-06-18 | 京东方科技集团股份有限公司 | A color film substrate, a display panel and a display device |
| CN103885219A (en) * | 2014-03-13 | 2014-06-25 | 明基材料有限公司 | Light switching module |
| WO2016149976A1 (en) * | 2015-03-24 | 2016-09-29 | 深圳市华星光电技术有限公司 | Optical fiber backlight module and liquid crystal display |
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