CN112230469A - Liquid crystal display screen with high light transmittance - Google Patents
Liquid crystal display screen with high light transmittance Download PDFInfo
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- CN112230469A CN112230469A CN202011240745.7A CN202011240745A CN112230469A CN 112230469 A CN112230469 A CN 112230469A CN 202011240745 A CN202011240745 A CN 202011240745A CN 112230469 A CN112230469 A CN 112230469A
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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
- G02F1/133528—Polarisers
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a high-light-transmittance liquid crystal display screen which comprises a TFT (thin film transistor) display layer, a VA (vertical alignment) display layer and a diffusion sheet display layer, wherein the diffusion sheet display layer comprises a diffusion sheet, the VA display layer comprises a VA display screen, a VA front polarizer is attached to the upper part of the VA display screen, and a VA rear polarizer are attached to the lower part of the VA display screen
The film layer is a VA rear polarizer layer which is designed integrally, the lower part of the VA rear polarizer layer is jointed with a diffusion sheet in the diffusion sheet display layer, the TFT display layer comprises a TFT front polarizer, the TFT front polarizer and the diffusion sheet in the diffusion sheet display layer are arranged in parallel in the same plane, and a TFT display screen and a TFT rear polarizer are jointed at the lower part of the TFT front polarizer in sequence; the invention is characterized in that a layer of special angle is superposed inside the display screen
A thin film layer for improving light transmittance of the hybrid display panel to make the displayThe display area has higher brightness and provides better visual effect.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted liquid crystal display, in particular to a high-light-transmittance liquid crystal display screen.
Background
The VA liquid crystal (Vertical Alignment liquid crystal) display screen is short for vertically arranged liquid crystal, has the technical advantages of high contrast, mild color temperature, low light leakage degree, wide visual angle and the like, and effectively solves the problem of color loss of the TN liquid crystal (Twisted Nematic liquid crystal) display screen; compared with TN liquid crystal, VA liquid crystal has higher contrast and wider visual angle, and is the mainstream technology adopted by the large-screen liquid crystal television at present.
The TFT liquid crystal (Thin Film Transistor liquid crystal) display screen is a Thin Film Transistor liquid crystal display screen, namely a 'true color' (TFT), the TFT liquid crystal is provided with a semiconductor switch for each pixel, and each pixel can be directly controlled by a point pulse, so that each node is relatively independent and can be continuously controlled, the reaction speed of the display screen is improved, and meanwhile, the display color gradation can be accurately controlled, so that the color of the TFT liquid crystal is more true.
Most of black and white display screens can only be applied to a certain small part of an automobile instrument, along with the development of times, a color display screen is deeply favored by consumers as the automobile instrument, and the TFT display screen needs huge mold opening cost due to the defect of high price per se and the special-shaped design of the TFT display screen, so that a mixed liquid crystal display screen formed by combining and matching a VA liquid crystal display screen and the TFT liquid crystal display screen is widely applied to the manufacture of the automobile instrument panel, and the matching combination among the screens can directly influence the control appearance of a vehicle in an automobile cab and the visual effect of people.
The mixed display screen after TFT display screen and VA display screen combination on the existing market, in order to have better integrative black effect, use TFT display screen and VA display screen direct stack together usually, but its light transmissivity is lower, thereby it is not good to cause visual effect, if increase luminance in a poor light, then can the whole instrument cost of greatly increased, luminance in a poor light is close to having reached the highest limit simultaneously, also hardly have and promoted by a wide margin, consequently, the transmissivity through improving light is with the transmissivity that promotes mixed display screen, can greatly save the cost and satisfy the market demand.
Disclosure of Invention
The invention aims to provide a high-light-transmittance liquid crystal display screen aiming at the defects in the prior art, so as to solve the technical problems of low light transmittance, poor visual effect and the like caused by the superposition of a VA display screen and a TFT display screen in the prior art, and in order to realize the purposes, the invention is realized by the following technical scheme:
the utility model provides a mixed liquid crystal display of high luminousness, includes TFT display layer, VA display layer and diffusion piece display layer, diffusion piece display layer is including diffusing the piece, the VA display layer includes the VA display screen, the laminating of VA display screen upper portion has preceding polaroid of VA, the laminating of VA display screen lower part has behind the VA polaroid and VA display screen
The thin film layer is the VA back polarizer layer of a body design, VA back polarizer layer lower part is laminated with the diffusion piece of diffusion piece in the piece display layer mutually, the TFT display layer includes TFT front polarizer, TFT front polarizer and the diffusion piece in the piece display layer parallel arrangement in the coplanar, and TFT front polarizer lower part is laminated TFT display screen and TFT back polarizer in proper order.
The utility model provides a mixed liquid crystal display of high luminousness, includes TFT display layer, VA display layer and diffusion piece display layer, diffusion piece display layer is including the diffusion piece, the VA display layer includes the VA display screen, the laminating of VA display screen upper portion has preceding polaroid of VA, the laminating of VA display screen lower part has the polaroid behind the VA, laminating mutually with the diffusion piece that spreads in the display layer behind the VA, the TFT display layer includes preceding polaroid of TFT, polaroid and the laminating of preceding polaroid of TFT and diffusion piece display layer behind the VA still are laminated in polaroid lower part behind the VA
The thin film layer is a TFT front polarizer layer designed as a whole, the TFT front polarizer layer and a diffusion sheet in the diffusion sheet display layer are arranged in parallel in the same plane, and the lower part of the TFT front polarizer layer is sequentially attached to a TFT display screen and a TFT rear polarizer.
The utility model provides a mixed liquid crystal display of high luminousness, includes TFT display layer, VA display layer and diffusion piece display layer, the TFT display layer includes TFT preceding polaroid, VA display layer includes the VA display screen, diffusion piece display layer is including diffusing piece and piece display layer
The upper part of the VA display screen is attached with a VA front polarizer, the lower part of the VA display screen is attached with a VA rear polarizer, and the lower part of the VA rear polarizer, a diffusion sheet in the diffusion sheet display layer and the diffusion sheet in the diffusion sheet display layer
The film layers are attached to each other, and the diffusion sheet is attached to
The film layers are in the same plane and arranged in parallel and on said
The lower part of the thin film layer is attached to the TFT front polarizer, the TFT display screen and the TFT rear polarizer.
Preferably, a backlight module is arranged at the lower part of the TFT rear polarizer.
Preferably, the number of the diffusion sheets is 2 groups.
Preferably, the diffusion sheets are distributed on both sides of the TFT front polarizer.
Preferably, the diffusion sheets are distributed on both sides of the TFT front polarizer layer.
Preferably, the diffusion sheet is distributed on the diffusion sheet
Both sides of the thin film layer.
Preferably, the glue used in the attaching process is OCR optical glue.
Preferably, an OCA double-sided adhesive tape is used between the VA rear polarizer and the diffusion sheet, and an OCA double-sided adhesive tape or an OCR optical adhesive tape is used between the VA rear polarizer and the TFT panel.
The invention has the beneficial effects that:
1. the liquid crystal display screen with high light transmittance is formed by superposing a layer of liquid crystal display screen with a specific angle between a VA display screen and a TFT display screen
A thin film layer for allowing light irradiated from the polarizer of the TFT display to pass through
The film layer deflects, the propagation direction of light is close to the light transmission axis direction of the bottom polarizer of the VA display screen, so that the loss of light is reduced, the light transmittance of the liquid crystal display screen is improved, and the display area has higher brightness and better visual effect.
2. The liquid crystal display screen disclosed by the invention is suitable for manufacturing automobile instrument panels in different shapes by adding the soft VA screen, so that the mold opening cost is obviously reduced, the liquid crystal display screen has a good integral black effect, and the attractiveness of the center control appearance in a cab and the visual effect impact of people are improved.
Drawings
FIG. 1 is a drawing of
A display screen structure schematic diagram is designed by integrating the film layer and the VA rear polarizer;
FIG. 2 is
A structural schematic diagram of a display screen integrally designed by a thin film layer and a TFT front polarizer;
FIG. 3 is a drawing showing
A display screen structure chart with independently designed thin film layers;
FIG. 4 is a drawing showing
The principle and schematic diagram of light deflection of the thin film layer;
FIG. 5 is a diagram showing the light deflection route of different glass sheets.
In the figure: 1. a VA front polarizer; 2. a VA display screen; 3. VA rear polarizer; 4.
a thin film layer; 5. a diffusion sheet; 6. a TFT front polarizer; 7. a TFT display screen; 8. a TFT rear polarizer; 9. a backlight module is provided.
Detailed Description
The invention will be further described with reference to the accompanying drawings and the detailed description below:
example 1:
as shown in fig. 1, a high-transmittance liquid crystal display includes a TFT display layer, a VA display layer, and a diffusion sheet display layer, wherein the diffusion sheet display layer includes a diffusion sheet 5, the VA display layer includes a VA display screen 2, and the TFT display layer includes a TFT front polarizer 6; the upper part of the VA display screen 2 is adhered with a VA front polarizer 1 by using optical glue, and the lower part of the VA display screen 2 is adhered with a VA rear polarizer 3 and
the film layer 4 is an integrally designed VA rear polarizer layer, the lower part of the VA rear polarizer layer is also jointed with a diffusion sheet 5 in the diffusion sheet display layer and a TFT front polarizer 6 in the TFT display layer, the TFT front polarizer 6 and the diffusion sheet 5 are required to be arranged in the same plane, the two diffusion sheets 5 are arranged in parallel, two groups of diffusion sheets 5 are arranged on two sides of the TFT front polarizer 6, the VA rear polarizer layer and the diffusion sheets 5 are bonded by adopting OCA double-faced adhesive tape, the VA rear polarizer layer and the TFT front polarizer 6 are bonded by adopting OCA double-faced adhesive tape or OCR optical adhesive tape, then the lower part of the TFT front polarizer 6 is adhered with the TFT display screen 7 and the TFT rear polarizer 8 by optical glue in turn, the lower part of the rear polarizer 8 of the TFT is provided with a backlight module 9 for providing backlight for the hybrid display screen of the invention, and the optical glue used in the laminating process is OCR optical glue.
Example 2:
as shown in fig. 2, a heightThe light-transmittance liquid crystal display screen comprises a TFT (thin film transistor) display layer, a VA (vertical alignment) display layer and a diffusion sheet display layer, wherein the diffusion sheet display layer comprises a diffusion sheet 5, the VA display layer comprises a VA display screen 2, and the TFT display layer comprises a TFT front polarizer 6; the VA display screen 2 is adhered with a VA front polarizer 1 by using optical glue, the VA rear polarizer 3 is adhered to the lower part of the VA display screen 2 by using optical glue, and the VA rear polarizer 3 is adhered with a TFT front polarizer 6 and a TFT rear polarizer 6
The thin film layer 4 is a TFT front polarizer layer and the diffusion sheet 5 in the diffusion sheet display layer which are designed integrally, two groups of diffusion sheets 5 are respectively distributed on two sides of the TFT front polarizer layer, the TFT front polarizer layer and the diffusion sheets 5 are positioned in the same plane and are arranged in parallel, the VA rear polarizer 3 and the diffusion sheets 5 are attached by using OCA double-faced adhesive tape, the TFT front polarizer layer and the VA rear polarizer 3 are attached by using OCA double-faced adhesive tape or OCR optical adhesive tape, then the lower part of the TFT front polarizer layer 6 is sequentially attached to the TFT display 7 and the TFT rear polarizer 8 by using optical adhesive, the lower part of the TFT rear polarizer 8 is provided with a backlight module 9 for providing backlight for the hybrid display screen, and the optical adhesive used by the attaching process is OCR optical adhesive tape.
Example 3:
as shown in fig. 3, a high transmittance liquid crystal display panel includes a TFT display layer, a VA display layer and a diffusion sheet display layer, wherein the TFT display layer includes a TFT front polarizer 6, the VA display layer includes a VA display screen 2, and the diffusion sheet display layer includes a diffusion sheet 5 and a diffusion sheet
A film layer 4, a VA front polarizer 1 is adhered to the upper part of the VA display screen 2 by using optical glue, a VA rear polarizer 3 is adhered to the lower part of the VA display screen, and the lower part of the VA rear polarizer 3, a diffusion sheet 5 in the diffusion sheet display layer and a diffusion sheet 5 in the diffusion sheet display layer
The film layer 4 is jointed, and the joint between the VA rear polarizer 3 and the diffusion sheet 5The OCA double faced adhesive tape is adopted for lamination, and the VA rear polarizer 3 is adhered to the VA rear polarizer
The film layers 4 can be bonded by OCA double-sided adhesive or OCR optical adhesive, and the diffusion sheet 5 and the diffusion sheet
The film layers 4 are in the same plane and arranged parallel to each other, and two groups of diffusion sheets 5 are arranged
On both sides of the film layer 4, and finally on
The lower part of the thin film layer 4 is sequentially attached to the TFT front polarizer 6, the TFT display screen 7 and the TFT rear polarizer 8 by using optical glue, the lower part of the TFT rear polarizer 8 is provided with a backlight module 9 for providing backlight for the hybrid display screen, and the optical glue used in the attaching process is OCR optical glue.
Particularly, in order to provide the hybrid display panel of the present invention with good lightness and thinness, the diffusion sheet 5 may be set to have a thickness of 0.15-0.25mm,
the thickness of the film layer 4 may be set to 0.05-0.15mm, and the diffusion sheet 5 may be combined with
Certain distance intervals exist between the thin film layer 4 and the TFT front polarizer 6, so that the thin film layer and the TFT front polarizer are not interfered with each other.
As shown in fig. 4 to 5, since a layer of a specific angle is added in the hybrid display screen of the present invention
A thin film layer 4 for passing light from the TFT front polarizer 6
When the thin film layer 4 is injected into the VA display layer, light rays firstly pass through
The thin film layer 4 deflects to make the propagation direction of light extremely close to the transmission axis direction of the VA rear polarizer 3, thereby reducing light loss.
The mixed liquid crystal display screen can freely design the shape of a central control instrument panel according to the design of automobile instrument manufacturers, the form design of instrument liquid crystal is carried out through the upper layer VA display screen panel, and the display of images is carried out through the lower layer TFT display screen, so that the mixed liquid crystal display screen is suitable for automobiles with different styles.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a mixed liquid crystal display of high luminousness, includes TFT display layer, VA display layer and diffusion piece display layer, a serial communication port, diffusion piece display layer is including diffusing the piece, the VA display layer includes the VA display screen, the laminating of VA display screen upper portion has preceding polaroid of VA, the laminating of VA display screen lower part has behind the VA polaroid and VA display screen
The thin film layer is the VA back polarizer layer of a body design, VA back polarizer layer lower part is laminated with the diffusion piece of diffusion piece in piece display layer mutually, the TFT display layer includes TFT front polarizer, TFT front polarizer and the diffusion piece in piece display layer mutual parallel arrangement in the coplanar, and TFT front polarizer lower part is laminated TFT display screen and TFT back polarizer in proper order.
2. The utility model provides a mixed liquid crystal display of high luminousness, includes TFT display layer, VA display layer and diffusion piece display layer, its characterized in that, it includes the diffusion piece to spread the piece display layer, the VA display layer includes the VA display screen, the laminating of VA display screen upper portion has preceding polaroid of VA, the laminating of VA display screen lower part has polaroid behind the VA, laminating mutually with the diffusion piece that spreads the piece display intraformational behind the VA polaroid lower part, the TFT display layer includes preceding polaroid of TFT, polaroid and diffusion piece before the VA rear portion has still laminated TFT and the laminating of polaroid and polaroid behind the VA
The thin film layer is a TFT front polarizer layer designed as a whole, the TFT front polarizer layer and a diffusion sheet in the diffusion sheet display layer are arranged in parallel in the same plane, and the lower part of the TFT front polarizer layer is sequentially attached to a TFT display screen and a TFT rear polarizer.
3. The utility model provides a mixed liquid crystal display of high luminousness, includes TFT display layer, VA display layer and diffusion piece display layer, its characterized in that, TFT display layer includes TFT preceding polaroid, VA display layer includes the VA display screen, diffusion piece display layer is including diffusing piece and display layer
The upper part of the VA display screen is attached with a VA front polarizer, the lower part of the VA display screen is attached with a VA rear polarizer, and the lower part of the VA rear polarizer, a diffusion sheet in the diffusion sheet display layer and the diffusion sheet in the diffusion sheet display layer
The film layers are attached to each other, and the diffusion sheet is attached to
The film layers are in the same plane and arranged parallel to each other and in said plane
The lower part of the thin film layer is attached to the TFT front polarizer, the TFT display screen and the TFT rear polarizer.
4. A high transmittance lcd panel as claimed in any one of claims 1 to 3, wherein a backlight module is disposed under the TFT rear polarizer.
5. A liquid crystal display panel having high light transmittance according to any one of claims 1 to 3, wherein the number of the diffusion sheets is 2.
6. The liquid crystal display panel with high light transmittance of claim 1, wherein the diffusion sheet is distributed on both sides of the TFT front polarizer.
7. The liquid crystal display panel of claim 2, wherein the diffusion sheet is disposed on both sides of the TFT front polarizer layer.
8. The liquid crystal display panel with high light transmittance of claim 3, wherein the diffusion sheet is distributed on the liquid crystal display panel
Both sides of the thin film layer.
9. A high transmittance liquid crystal display screen according to any one of claims 1 to 8, wherein the glue used in the bonding process is OCR optical glue.
10. The liquid crystal display panel with high light transmittance of claim 2, wherein an OCA double-sided adhesive tape is used between the VA rear polarizer and the diffusion sheet, and an OCA double-sided adhesive tape or an OCR optical adhesive tape is used between the VA rear polarizer and the TFT panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011240745.7A CN112230469A (en) | 2020-11-09 | 2020-11-09 | Liquid crystal display screen with high light transmittance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011240745.7A CN112230469A (en) | 2020-11-09 | 2020-11-09 | Liquid crystal display screen with high light transmittance |
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| Publication Number | Publication Date |
|---|---|
| CN112230469A true CN112230469A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011240745.7A Withdrawn CN112230469A (en) | 2020-11-09 | 2020-11-09 | Liquid crystal display screen with high light transmittance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059986A (en) * | 2021-02-26 | 2021-07-02 | 精电(河源)显示技术有限公司 | High on-vehicle sunshade screen device that passes through of intelligence |
-
2020
- 2020-11-09 CN CN202011240745.7A patent/CN112230469A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059986A (en) * | 2021-02-26 | 2021-07-02 | 精电(河源)显示技术有限公司 | High on-vehicle sunshade screen device that passes through of intelligence |
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Application publication date: 20210115 |
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| WW01 | Invention patent application withdrawn after publication |