CN220626810U - Liquid crystal display module and LCD product for increasing transmittance - Google Patents
Liquid crystal display module and LCD product for increasing transmittance Download PDFInfo
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- CN220626810U CN220626810U CN202322148526.1U CN202322148526U CN220626810U CN 220626810 U CN220626810 U CN 220626810U CN 202322148526 U CN202322148526 U CN 202322148526U CN 220626810 U CN220626810 U CN 220626810U
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- liquid crystal
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 60
- 238000002834 transmittance Methods 0.000 title claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910000484 niobium oxide Inorganic materials 0.000 claims description 4
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
The utility model provides a liquid crystal display module for increasing light transmittance and an LCD product, which sequentially comprise substrate glass, a refraction matching layer and a liquid crystal box along the incident direction of light; the refractive index of the refraction matching layer is n, and n meets the following conditions: n is more than or equal to 0.9a and less than or equal to 1.1a; wherein,n 1 n being the refractive index of the substrate glass 2 A refractive index of an ITO layer of the liquid crystal cell; the thickness of the refraction matching layer isLambda is the wavelength of light at the index matching layer and k is a natural number. According to the liquid crystal display module, the refraction matching layer is additionally arranged between the substrate glass and the liquid crystal box, the reflection light energy of the whole liquid crystal display module is close to zero by means of the refraction matching layer, the light transmitted to the liquid crystal box is increased, so that the transmittance is increased, and the transmittance of an LCD product is improved.
Description
Technical Field
The present utility model relates to the field of liquid crystal display modules, and more particularly to a liquid crystal display module with increased transmittance and an LCD product.
Background
The conventional LCD products have insufficient display brightness due to low transmittance, and a high-brightness backlight is used to increase the display brightness. However, when the backlight with high brightness is used for improving the brightness, the power consumption of the LCD product becomes large, so that the overall temperature of the LCD module is improved, and the voltage and current of the LCD product can be fluctuated after long-term use, thereby causing the adverse problems of display screen lightening, unstable display and the like of the LCD product.
Disclosure of Invention
The utility model aims to provide a liquid crystal display module and an LCD product for increasing transmittance so as to solve the problem of low transmittance of the LCD product.
In order to achieve the above object, the present utility model has the following technical scheme:
the utility model provides a liquid crystal display module for increasing transmittance, which comprises:
along the incident direction of light sequentially comprises a substrate glass an index matching layer and a liquid crystal cell;
the refractive index of the refraction matching layer is n, and n meets the following conditions:
n is more than or equal to 0.9a and less than or equal to 1.1a; wherein,n 1 n being the refractive index of the substrate glass 2 A refractive index of an ITO layer of the liquid crystal cell;
the thickness of the refraction matching layer isλ is the wavelength of light at the index matching layer, and k is a natural number.
Compared with the prior art, the refraction matching layer is innovatively added between the substrate glass and the liquid crystal box, the reflection light energy of the whole liquid crystal display module is close to zero by means of the refraction matching layer, the light transmitted to the liquid crystal box is increased, the light transmittance is increased, and the transmittance of an LCD product is improved.
Interference cancellation occurs, so that the intensity of reflected light is weakened, the intensity of transmitted light is increased, and the effect of anti-reflection is achieved
In one embodiment, the refractive index of the index matching layer
In one embodiment, the index matching layer comprises at least one silicon dioxide layer and at least one niobium oxide layer.
In one embodiment, the liquid crystal cell has a TOP layer with a refractive index of 1.7-1.9.
In one embodiment, further comprising: a polarizing layer connected to the substrate glass; the polarizing layer and the refraction matching layer are respectively positioned on two opposite sides of the substrate glass.
The utility model provides a liquid crystal display module for increasing transmittance, which comprises:
the light-emitting device comprises substrate glass and a liquid crystal box in sequence along the incidence direction of light, wherein the liquid crystal box is provided with a TOP layer, and the refractive index of the TOP layer is 1.7-1.9.
In one embodiment, further comprising: a polarizing layer connected to the substrate glass; the polarizing layer and the liquid crystal box are respectively positioned on two opposite sides of the substrate glass.
The utility model provides an LCD product, which comprises the liquid crystal display module for increasing the transmittance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic diagram of a LCD module with increased transmittance according to embodiment 1 of the present application;
fig. 2 is a schematic view of the optical path of embodiment 1 of the present application.
Detailed Description
In order to better illustrate the present utility model, the present utility model will be described in further detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the embodiments of the present application, are within the scope of the embodiments of the present application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims. In the description of this application, it should be understood that the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and are not necessarily used to describe a particular order or sequence, nor should they be construed to indicate or imply relative importance. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of the association object, and indicates that there may be three relationships, for example, a and/or 41 or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
Example 1
As shown in fig. 1 to 2, the present utility model provides a liquid crystal display module for increasing transmittance, which includes: in turn along the incident direction of light comprises a substrate glass 2 a refractive matching layer 3 and a liquid crystal cell 4; the refractive index of the refraction matching layer 3 is n, n 1 N is the refractive index of the substrate glass 2 2 Is the refractive index of the ITO layer of the liquid crystal cell 4.
Specifically, the application is realized by arranging a refraction matching layer 3 between the liquid crystal box 4 and the substrate glass 2; when incident light enters through the substrate glass 2, the substrate glass 2 is internally provided with a first light ray (1) and a second light ray (2), the first light ray (1) is a light ray reflected by an interface between the refraction matching layer 3 and the substrate glass 2, and the second light ray (2) is a light ray reflected by the ITO layer of the liquid crystal box 4 and the refraction matching layer 3 and refracted into the substrate glass 2;
from the fresnel formula and the law of refraction, when the angle of incidence is small, light is reflected from the refractive index n 1 The substrate glass 2 of (2) has a refractive index p of the refractive index n toward the index matching layer 3 1 ，From index n index of refraction matching layer 3 to index of refraction n 2 Has a reflectivity ρ of ITO layer 2 ，/>
As long as the first light ray (1) and the second light ray (2) meet the condition that the amplitudes are equal and are exactly opposite, the two light rays cancel each other, and the energy of the reflected light of the whole liquid crystal display module is close to zero. According to the conservation of energy during the antireflective process, the light transmitted to the liquid crystal cell 4 is increased, and almost all the light is transmitted.
I.e. ρ 1 ＝ρ 2 The first light (1) and the second light (2) can have equal amplitudes, wherein the simplification is availableWhen the substrate glass 2 (n 1 ) An index matching layer (n) and an ITO layer (n 2 ) The closer the refractive indexes of the three materials are to the above relation, the better the anti-reflection effect.
Assume thatThe closer the above relation is, the more 0.9 a.ltoreq.n.ltoreq.1.1 a. Wherein (1)>The effect is best in the future.
Furthermore, the thickness of the refraction matching layer 3 isλ is the wavelength of light in the refraction matching layer 3, and k is a natural number. Where λ is an incident light of an arbitrary wavelength, and the thickness of the refraction matching layer is specifically required to be set according to the wavelength of the incident light.
When the matching of the refraction matching layer 3 is satisfiedAnd->When the anti-reflection effect is best.
As a specific example, the refractive index of the substrate glass is n 1 =1.5, the refractive index of the ITO layer is n 2 =1.8, the index matching layer isLambda is the wavelength 550nm of natural light, k is the natural number 0,in the process, the current liquid crystal display module can achieve the best anti-reflection effect.
Compared with the prior art, the novel liquid crystal display module has the advantages that the refraction matching layer 3 is additionally arranged between the substrate glass 2 and the liquid crystal box 4, so that the energy of reflected light of the whole liquid crystal display module is close to zero, and the light transmitted to the liquid crystal box 4 is increased according to energy conservation in the anti-reflection process, so that the transmittance is increased, and the transmittance of an LCD product is improved.
In one embodiment, the index matching layer 3 includes at least one silicon dioxide layer 31 and at least one niobium oxide layer 32. According to the actual refractive index requirement of the refraction matching layer 3, the thickness of the silicon dioxide layer 31 and the niobium oxide layer 32 is changed, and the number of layers is adjusted, so that the refraction matching layer 3 is adjusted to the corresponding refractive index, and the optimal anti-reflection effect is achieved.
In one embodiment, the liquid crystal cell 4 has a TOP layer 42, the TOP layer 42 being arranged inside the ITO layer 41 of the liquid crystal cell, the TOP layer 42 having a refractive index of 1.7-1.9. In this embodiment, according to fresnel formula and reflection law theory, the refractive index of the TOP layer 42 is closer to the refractive index of the ITO layer 41, and the refractive index of the TOP layer 42 is lower. When light enters the surface of the liquid crystal display module, the light is divided into three parts, namely absorption, reflection and transmission. When the absorption portion is considered to be unchanged, the reflectance is reduced, and the reflection portion becomes weaker, the stronger the corresponding transmitted light, the higher the transmittance. Therefore, the reflectivity of the TOP material of the liquid crystal display module is reduced, so that the transmittance can be improved.
In one embodiment, further comprising: a polarizing layer 1 connected to the substrate glass 2; the polarizing layer 1 and the refraction matching layer 3 are respectively positioned at two opposite sides of the substrate glass 2. A part of the scattered light is filtered by the polarizing layer 1.
The utility model provides an LCD product, which comprises the liquid crystal display module for increasing the transmittance. The LCD product comprises liquid crystal display products applied to a streaming media rearview mirror, a light valve type protective mask, liquid crystal electrochromic sunglasses and the like.
Example 2
The present embodiment is substantially the same as embodiment 1, and the difference is that the present embodiment provides a liquid crystal display module for increasing transmittance, which includes: the liquid crystal cell 4 comprises a substrate glass 2 and a liquid crystal cell 4 in turn along the incidence direction of light, wherein the liquid crystal cell 4 is provided with a TOP layer 42, the TOP layer 42 is arranged on the inner side of an ITO layer 41 of the liquid crystal cell, and the refractive index of the TOP layer 42 is 1.7-1.9.
In one embodiment, further comprising: a polarizing layer 1 connected to the substrate glass 2; the polarizing layer 1 and the liquid crystal cell 4 are located on opposite sides of the substrate glass 2, respectively.
In the description of the present utility model, it should be understood that the terms "vertical," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present utility model.
If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is for convenience only as well as for simplicity of description, and nothing more than a particular meaning of the terms is intended to be used unless otherwise stated.
The present utility model is not limited to the above-described embodiments, but, if various modifications or variations of the present utility model are not departing from the spirit and scope of the present utility model, the present utility model is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (8)
1. The utility model provides a liquid crystal display module of increase transmittance which characterized in that:
along the incident direction of light sequentially comprises a substrate glass an index matching layer and a liquid crystal cell;
the refractive index of the refraction matching layer is n, and n meets the following conditions:
n is more than or equal to 0.9a and less than or equal to 1.1a; wherein,n 1 n being the refractive index of the substrate glass 2 A refractive index of an ITO layer of the liquid crystal cell;
the thickness of the refraction matching layer isλ is the wavelength of light at the index matching layer, and k is a natural number.
2. The lcd module of claim 1, wherein:
refractive index of the refractive matching layer
3. The lcd module of claim 1, wherein:
the refraction matching layer comprises at least one silicon dioxide layer and at least one niobium oxide layer.
4. The lcd module of claim 1, wherein:
the liquid crystal cell has a TOP layer with a refractive index of 1.7-1.9.
5. The light transmittance-increasing liquid crystal display module as defined in claim 1, further comprising:
a polarizing layer connected to the substrate glass; the polarizing layer and the refraction matching layer are respectively positioned on two opposite sides of the substrate glass.
6. The utility model provides a liquid crystal display module of increase transmittance which characterized in that includes:
the light-emitting device comprises substrate glass and a liquid crystal box in sequence along the incidence direction of light, wherein the liquid crystal box is provided with a TOP layer, and the refractive index of the TOP layer is 1.7-1.9.
7. The light transmittance-increasing liquid crystal display module as defined in claim 6, further comprising:
a polarizing layer connected to the substrate glass; the polarizing layer and the liquid crystal box are respectively positioned on two opposite sides of the substrate glass.
8. An LCD product comprising the transmittance-increasing liquid crystal display module according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322148526.1U CN220626810U (en) | 2023-08-10 | 2023-08-10 | Liquid crystal display module and LCD product for increasing transmittance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322148526.1U CN220626810U (en) | 2023-08-10 | 2023-08-10 | Liquid crystal display module and LCD product for increasing transmittance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220626810U true CN220626810U (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322148526.1U Active CN220626810U (en) | 2023-08-10 | 2023-08-10 | Liquid crystal display module and LCD product for increasing transmittance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220626810U (en) |
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2023
- 2023-08-10 CN CN202322148526.1U patent/CN220626810U/en active Active
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