CN114167647A - Direct type liquid crystal display and direct type liquid crystal television - Google Patents
Direct type liquid crystal display and direct type liquid crystal television Download PDFInfo
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- CN114167647A CN114167647A CN202111488238.XA CN202111488238A CN114167647A CN 114167647 A CN114167647 A CN 114167647A CN 202111488238 A CN202111488238 A CN 202111488238A CN 114167647 A CN114167647 A CN 114167647A
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
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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
- G02F1/133603—Direct backlight with LEDs
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- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Dispersion Chemistry (AREA)
Abstract
The invention relates to the technical field of display, in particular to a direct type liquid crystal display and a direct type liquid crystal television, which comprise: the liquid crystal display panel comprises a liquid crystal panel, a first diffusion adhesive film and an optical film, wherein the first diffusion adhesive film is positioned between the liquid crystal panel and the optical film; the upper surface of the liquid crystal panel is a light-emitting surface of the liquid crystal panel, and the lower surface of the liquid crystal panel is a light-entering surface of the liquid crystal panel; the upper surface of the optical film is an optical film light-emitting surface, and the lower surface of the optical film is an optical film light-entering surface; the light incident surface of the liquid crystal panel is attached to the upper surface of the first diffusion adhesive film, and the light emergent surface of the optical film is attached to the lower surface of the first diffusion adhesive film. The direct type liquid crystal display and the direct type liquid crystal television have the advantages of simple process and low cost, can effectively reduce the whole weight of the display, cannot be affected by temperature to expand and deform during use, and realize light, thin and ultra-narrow frame or frameless display.
Description
Technical Field
The invention relates to the technical field of display, in particular to a direct type liquid crystal display and a direct type liquid crystal television.
Background
The liquid crystal display device includes an LCD liquid crystal panel for displaying image contents and a backlight assembly for providing a white light source to the LCD liquid crystal panel. The backlight module comprises a light source, an optical film and a back plate used for installing the light source and the optical film. The backlight module is mainly divided into an edge type backlight module and a direct type backlight module according to different installation positions of the light source.
At present, frivolous, super narrow frame, no frame display receive favour day by day, and under the condition of pursuing the image quality limit, more and more adopt straight following formula backlight unit to conveniently increase dynamic area control technique, strengthen the display effect, straight following formula backlight unit arranges the lamp pearl at the TV back. However, most diffusion plates in the direct type backlight source are made of organic plastics, are easy to expand and change when heated, are not suitable for ultra-narrow-frame and frameless displays, glass materials are used for replacing the organic plastics, the problems of thermal expansion and deformation of backlight components can be effectively solved in a mode that the optical films and the glass are completely laminated, the weight of the glass materials is heavier than that of the organic plastics, when the glass with the conventional thickness replaces the organic plastics to serve as the backlight components, the weight of the display can be increased, the tempered ultra-thin glass is used, the glass strength is reduced, the sheet breaking risk exists, and the tempered ultra-thin glass is used for increasing the production cost.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems that a backlight module is easy to expand and deform, heavy, low in strength or high in cost and the like in an ultra-narrow frame or frameless frame display, the invention provides a direct type liquid crystal display and a direct type liquid crystal television, which have the advantages of simple process and low cost, can effectively reduce the overall weight of the display, cannot be expanded and deformed due to temperature during use, and realize light and thin ultra-narrow frame or frameless display.
The technical scheme adopted by the invention for solving the technical problems is as follows: a direct type liquid crystal display comprising: the liquid crystal display panel comprises a liquid crystal panel, a first diffusion adhesive film and an optical film, wherein the first diffusion adhesive film is positioned between the liquid crystal panel and the optical film; the upper surface of the liquid crystal panel is a light-emitting surface of the liquid crystal panel, and the lower surface of the liquid crystal panel is a light-entering surface of the liquid crystal panel; the upper surface of the optical film is an optical film light-emitting surface, and the lower surface of the optical film is an optical film light-entering surface; the light inlet surface of the liquid crystal panel is attached to the upper surface of the first diffusion adhesive film, and the light outlet surface of the optical film is attached to the lower surface of the first diffusion adhesive film; the light incoming surface of the liquid crystal panel is fixedly connected with the light outgoing surface of the optical film in a bonding mode through the first diffusion adhesive film. The diffusion film is used for replacing a diffusion plate in a direct type backlight source, the optical film and the liquid crystal panel are completely laminated, when the display is used, due to the fact that the diffusion film is completely laminated and bonded with the optical film and the liquid crystal panel, the optical film and the liquid crystal panel cannot expand and deform under heat, the diffusion film laminated with the optical film and the liquid crystal panel cannot expand and deform under heat, material cost is greatly reduced, meanwhile, the weight of the display is reduced, the manufacturing process is simple, and light and thin ultra-narrow-frame or frame-free display is achieved.
Further, specifically, the invention further provides a blue light type direct type liquid crystal display, which further comprises a second diffusion adhesive film and a QD film; the second diffusive adhesive film is positioned between the optical film and the QD film; the light incident surface of the optical film is attached to the upper surface of the second diffusion adhesive film, the upper surface of the QD film is attached to the lower surface of the second diffusion adhesive film, and the optical film is fixedly connected with the QD film in a bonding mode through the second diffusion adhesive film.
Further, specifically, the first diffusion adhesive film and the second diffusion adhesive film both include an optical adhesive base material and diffusion particles distributed in the optical adhesive base material.
Further, specifically, the optical cement base material is one of organic silica gel, acrylic polymer, unsaturated polyester, polyurethane or epoxy resin, and the diffusion particles are one of silicon oxide or titanium oxide.
Further, specifically, in order to ensure the shielding effect of the first diffusion adhesive film and the second diffusion adhesive film, the first diffusion adhesive film and the second diffusion adhesive film are both high-shielding diffusion adhesive films.
Preferably, the thicknesses of the first diffusion adhesive film and the second diffusion adhesive film are both 50-300 μm, the light transmittance is both 30-60%, and the haze is both more than 95%.
Further, specifically, the optical film is a brightness enhancement film, and the brightness enhancement film is one of a DPP film, a CPP film, a DBEF film or a MicroLens film.
Further, specifically, still include the LED lamp plate, the LED lamp plate sets up the below of optics diaphragm.
Preferably, the liquid crystal display further comprises a blue light type LED lamp panel, and the blue light type LED lamp panel is arranged below the QD film.
A direct type liquid crystal television comprises the direct type liquid crystal display device.
The invention has the beneficial effects that the invention provides a direct type liquid crystal display and a direct type liquid crystal television, the diffusion film is used for replacing the diffusion plate in the direct type backlight source, the optical film and the liquid crystal panel are completely jointed, when in use, because the diffusion film is completely jointed and bonded with the optical film and the liquid crystal panel, the optical film and the liquid crystal panel can not be subjected to thermal expansion deformation, and the diffusion film jointed and bonded with the optical film and the liquid crystal panel can not be subjected to thermal expansion deformation. In addition, the invention further provides a blue light type direct type liquid crystal display. The material cost is greatly reduced, the weight of the display is reduced, the manufacturing process is simple, and light and thin ultra-narrow frame or frame-free display is realized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
In the figure, 1, a liquid crystal panel, 2, a first diffusion adhesive film, 3, an optical film, 4, a second diffusion adhesive film, 5, a QD film, 6, an LED lamp panel, 7 and a blue light type LED lamp panel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1, a direct type liquid crystal display includes a liquid crystal panel 1, a first diffusion film 2, an optical film 3 and an LED lamp panel 6, wherein the first diffusion film 2 is located between the liquid crystal panel 1 and the optical film 3; the upper surface of the liquid crystal panel 1 is a light-emitting surface of the liquid crystal panel 1, and the lower surface of the liquid crystal panel 1 is a light-entering surface of the liquid crystal panel 1; the upper surface of the optical film 3 is a light-emitting surface of the optical film 3, and the lower surface of the optical film 3 is a light-entering surface of the optical film 3; the light incident surface of the liquid crystal panel 1 is attached to the upper surface of the first diffusion film 2, and the light emergent surface of the optical film 3 is attached to the lower surface of the first diffusion film 2; the LED lamp plate 6 is arranged below the optical diaphragm 3, the distance between the first diffusion adhesive film 2 and the LED lamp plate 6 is 10-30mm, a plurality of LED light-emitting chips are arranged on the LED lamp plate 6, and light emitted by the LED light-emitting chips is fully mixed through the cooperation of the first diffusion adhesive film 2 and the LED lamp plate 6.
The first diffusion glued membrane 2 is the first diffusion glued membrane 2 that takes viscidity, first diffusion glued membrane 2 plays the effect of bonding fixed liquid crystal display panel 1 and optical film 3, can be through the fixed connection of first diffusion glued membrane 2 bonding between the income plain noodles of liquid crystal display panel 1 and the optical film 3 play plain noodles, first diffusion glued membrane 2 is because bonding between the income plain noodles of liquid crystal display panel 1 and the 3 play plain noodles of optical film, during the use, when LCD temperature rise, liquid crystal display panel 1 and optical film 3 do not receive the temperature to influence the dilatational strain, so with the first diffusion glued membrane 2 that liquid crystal display panel 1 and optical film 3 laminating bonded also can not receive the temperature to influence dilatational strain, and can not influence the fixed effect of first diffusion glued membrane 2, take place phenomenons such as droing.
The first diffusion glue film 2 comprises an optical glue base material and diffusion particles distributed in the optical glue base material. Wherein, the optical cement base material is one of organic silica gel, acrylic polymer, unsaturated polyester, polyurethane or epoxy resin, but not limited to the above; the diffusion particles are made of a scattering material, the scattering material is an inorganic system, and the scattering material is one of silicon oxide, titanium oxide or other inorganic systems; in the embodiment of the invention, the optical cement base material is preferably acrylic polymer, the cost of the first diffusion glue film 2 with diffusion particles added in the acrylic polymer is only 10% -20% higher than that of the conventional optical cement, the price of the glass diffusion plate is 50% -100% higher than that of the optical cement, the first diffusion glue film 2 can greatly reduce the material cost, and the weight of the liquid crystal display is reduced.
The first diffusion glue film 2 is a high-shielding type diffusion glue film, the image shielding effect of the first diffusion glue film 2 is good, light can penetrate through the first diffusion glue film 2 and can shield the image, in other words, the scattering property of the first diffusion glue film 2 is strong, and enough light can be guaranteed to be uniformly scattered on the liquid crystal panel through the first diffusion glue film 2. The thickness of the first diffusion adhesive film 2 is 50 μm to 300 μm, the light transmittance is 30% to 60%, the haze is greater than 95%, and further, the higher the haze, the better the shielding effect, and the haze greater than 95% meets the high shielding requirement, but in this embodiment, the brightness of the display is not affected by the shielding effect, the light transmittance can still meet the brightness requirement of the liquid crystal display, and if the light transmittance is less than 30%, the brightness of the liquid crystal display will be affected.
The optical film 3 is a brightness enhancement film, and the brightness enhancement film is one of a DPP film, a CPP film, a DBEF film or a MicroLens film, but not limited thereto.
Example 2
As shown in fig. 2, a direct type lcd according to a second embodiment of the present invention is different from the first embodiment in that the direct type lcd according to the second embodiment is a blue direct type lcd, and further includes a second diffusion film 4, a QD film 5, and a blue LED lamp panel 7; the second diffusion adhesive film 4 is positioned between the optical film 3 and the QD film 5; the light incident surface of the optical film 3 is attached to the upper surface of the second diffusion adhesive film 4, the upper surface of the QD film 5 is attached to the lower surface of the second diffusion adhesive film 4, the blue LED lamp panel 7 is arranged below the QD film 5, the distance between the second diffusion adhesive film 4 and the blue LED lamp panel 7 is 10-30mm, and light emitted by the LED light emitting chip is fully mixed through the cooperation of the second diffusion adhesive film 4 and the blue LED lamp panel 7.
The second diffusion glued membrane 4 is the second diffusion glued membrane 4 that takes viscidity, second diffusion glued membrane 4 plays the effect of bonding fixed optical diaphragm 3 and QD membrane 5, through second diffusion glued membrane 4 bonding fixed connection between 3 income plain noodles of optical diaphragm and the 5 upper surfaces of OD membrane, second diffusion glued membrane 4 is because bonding between 3 income plain noodles of optical diaphragm and 5 upper surfaces of OD membrane, during the use, when LCD temperature rise, optical diaphragm 3 and QD membrane 5 do not receive temperature influence dilatational strain, so with the laminating of optical diaphragm 3 and QD membrane 5 second diffusion glued membrane 4 that bonds also can not receive temperature influence dilatational strain, and can not influence the fixed effect of second diffusion glued membrane 4, take place phenomenons such as drops.
The second diffusion glue film 4 comprises an optical glue base material and diffusion particles distributed in the optical glue base material. Wherein, the optical cement base material is one of organic silica gel, acrylic polymer, unsaturated polyester, polyurethane or epoxy resin, but not limited to the above; the diffusion particles are made of a scattering material, the scattering material is an inorganic system, and the scattering material is one of silicon oxide, titanium oxide or other inorganic systems; in the embodiment of the invention, the optical cement base material is preferably acrylic polymer, the cost of the second diffusion glue film 4 with diffusion particles added in the acrylic polymer is only 10% -20% higher than that of the conventional optical cement, the price of the glass diffusion plate is 50% -100% higher than that of the optical cement, the material cost of the second diffusion glue film 4 can be greatly reduced, and the weight of the liquid crystal display is reduced.
The second diffusion glued membrane 4 is high-shielding type diffusion glued membrane, and the second diffusion glued membrane 4 shields the image effectual, and light can see through the second diffusion glued membrane 4, and can shield the image again, in other words, the second diffusion glued membrane 4 scatters the nature strongly, guarantees that sufficient light passes through the second diffusion glued membrane 4 and evenly spreads on liquid crystal display panel. The thickness of the second diffusion adhesive film 4 is 50 μm to 300 μm, the light transmittance is 30% to 60%, the haze is greater than 95%, and further, the higher the haze is, the better the shielding effect is, and the haze greater than 95% meets the high shielding requirement, but in this embodiment, the brightness of the display is not affected by the shielding effect, the light transmittance can still meet the brightness requirement of the liquid crystal display, and if the light transmittance is less than 30%, the brightness of the liquid crystal display will be affected.
Taking embodiment 1 as an example, the direct type liquid crystal display provided by the present invention is tested, and the present invention provides a direct type liquid crystal display matched with a 46 inch backlight source, wherein a diffusion film has a thickness of 100 μm, a light transmittance of 45%, and a haze of 98.65%, and after a light-emitting surface of an optical film DPP is bonded to a light-in surface of a liquid crystal panel, the optical property and reliability thereof are measured. The above tests are all carried out in the conventional test mode in the field, and are not particularly limited. The test results are shown in table 1.
Comparative example 1
In comparative example 1, a direct type liquid crystal display is provided with a liquid crystal panel 1, an optical film 3, a diffusion plate and an LED lamp panel in sequence, wherein the optical film and the diffusion plate are connected through conventional optical cement, in comparative example 1, a 46-inch backlight source is matched, the conventional optical cement is OCA cement, the thickness of the conventional optical cement is also 100 microns, the diffusion plate is selected to have the light transmittance of 45 percent, the haze of 99 percent and the thickness of 1.1t, and the optical property and the reliability of the direct type liquid crystal display are measured after the light incoming surface of the DPP (dipeptidyl peptidase) of the optical film and the light outgoing surface of the diffusion plate are completely laminated.
The following table shows the results of the measurements of the direct type liquid crystal displays using the above example 1 and comparative example 1, respectively:
TABLE 1 Performance test results of direct type liquid Crystal display
As can be seen from table 1, the optical effects of the displays in example 1 and comparative example 1 are substantially the same, and after aging, the light efficiency and the picture reach the standard, but the weight of the display in example 1 is 30% lower than that in comparative example 1, the whole display structure has lower load bearing and better stability, and the cost of the diffusion adhesive film is reduced by 56% compared with the cost of the conventional OCA optical adhesive and the glass diffusion plate.
A direct type liquid crystal television comprises the direct type liquid crystal display, and the direct type liquid crystal television is light in weight and high in cost performance.
The invention provides a direct type liquid crystal display and a direct type liquid crystal television, wherein a diffusion film is used for replacing a diffusion plate in a direct type backlight source, an optical film and a liquid crystal panel are completely jointed, when in use, because the diffusion film is completely jointed and bonded with the optical film and the liquid crystal panel, the optical film and the liquid crystal panel cannot expand and deform under heat, and the diffusion film jointed and bonded with the optical film and the liquid crystal panel cannot expand and deform under heat. The material cost is greatly reduced, the weight of the display is reduced, the manufacturing process is simple, and light and thin ultra-narrow frame or frame-free display is realized.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A direct type liquid crystal display is characterized in that: the method comprises the following steps: the liquid crystal display panel comprises a liquid crystal panel (1), a first diffusion adhesive film (2) and an optical film (3), wherein the first diffusion adhesive film (2) is positioned between the liquid crystal panel (1) and the optical film (3);
the upper surface of the liquid crystal panel (1) is a light-emitting surface of the liquid crystal panel (1), and the lower surface of the liquid crystal panel (1) is a light-entering surface of the liquid crystal panel (1);
the upper surface of the optical film (3) is a light-emitting surface of the optical film (3), and the lower surface of the optical film (3) is a light-entering surface of the optical film (3);
the light incident surface of the liquid crystal panel (1) is attached to the upper surface of the first diffusion adhesive film (2), and the light emergent surface of the optical film (3) is attached to the lower surface of the first diffusion adhesive film (2);
the light incoming surface of the liquid crystal panel (1) is fixedly connected with the light outgoing surface of the optical film (3) through the first diffusion adhesive film (2).
2. The direct type liquid crystal display according to claim 1, wherein: the device also comprises a second diffusion adhesive film (4) and a QD film (5);
the second diffusive adhesive film (4) is located between the optical film (3) and the QD film (5);
the light incident surface of the optical film (3) is attached to the upper surface of the second diffusion adhesive film (4), and the upper surface of the QD film (5) is attached to the lower surface of the second diffusion adhesive film (4);
the optical film (3) and the QD film (5) are fixedly connected through the second diffusion adhesive film (4) in a bonding mode.
3. The direct type liquid crystal display according to claim 2, wherein: the first diffusion adhesive film (2) and the second diffusion adhesive film (4) both comprise an optical adhesive base material and diffusion particles distributed in the optical adhesive base material.
4. The direct type liquid crystal display according to claim 3, wherein: the optical cement base material is one of organic silica gel, acrylic polymer, unsaturated polyester, polyurethane or epoxy resin, and the diffusion particles are one of silicon oxide or titanium oxide.
5. The direct type liquid crystal display according to claim 3, wherein: the first diffusion adhesive film (2) and the second diffusion adhesive film (4) are both high-shielding diffusion adhesive films.
6. The direct type liquid crystal display according to claim 5, wherein: the thicknesses of the first diffusion adhesive film (2) and the second diffusion adhesive film (4) are both 50-300 mu m, the light transmittance is 30-60%, and the haze is more than 95%.
7. The direct type liquid crystal display according to claim 1, wherein: the optical film (3) is a brightness enhancement film, and the brightness enhancement film is one of a DPP film, a CPP film, a DBEF film or a Microlens film.
8. The direct type liquid crystal display according to claim 1, wherein: still include LED lamp plate (6), LED lamp plate (6) set up the below of optics diaphragm (3).
9. The direct type liquid crystal display according to claim 2, wherein: still include blue type LED lamp plate (7), blue type LED lamp plate (7) set up the below of QD membrane (5).
10. A straight following formula LCD TV, its characterized in that: the direct type liquid crystal television includes the direct type liquid crystal display device according to any one of claims 1 to 9.
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| CN109975918A (en) * | 2019-04-10 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of fitting optical module and liquid crystal module entirely |
| CN211627867U (en) * | 2019-12-10 | 2020-10-02 | 合肥泰沃达智能装备有限公司 | Straight following formula glass diffuser plate |
| JP2021138825A (en) * | 2020-03-04 | 2021-09-16 | リンテック株式会社 | Adhesive sheet, back-light unit and display device |
| CN111812892A (en) * | 2020-08-29 | 2020-10-23 | 深圳市显事达科技有限公司 | Direct type liquid crystal TFT-LCD display module |
| CN112859218A (en) * | 2021-03-10 | 2021-05-28 | 常州亚玛顿股份有限公司 | Backlight module with diffusion and spotlight functions |
| CN113296312A (en) * | 2021-05-14 | 2021-08-24 | 惠州视维新技术有限公司 | Display device |
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