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CN111487801A - Airborne liquid crystal display module with spectrum reduction capability and mapping head-up display - Google Patents

Airborne liquid crystal display module with spectrum reduction capability and mapping head-up display Download PDF

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Publication number
CN111487801A
CN111487801A CN202010466335.8A CN202010466335A CN111487801A CN 111487801 A CN111487801 A CN 111487801A CN 202010466335 A CN202010466335 A CN 202010466335A CN 111487801 A CN111487801 A CN 111487801A
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China
Prior art keywords
display
liquid crystal
component
module
color
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Pending
Application number
CN202010466335.8A
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Chinese (zh)
Inventor
卢业能
陈召全
袁烨
彭继
赵松
焦垚
冯吉祥
张勇
黄亚坤
王竞
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AVIC Huadong Photoelectric Co Ltd
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AVIC Huadong Photoelectric Co Ltd
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Priority to CN202010466335.8A priority Critical patent/CN111487801A/en
Publication of CN111487801A publication Critical patent/CN111487801A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • 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
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G02F1/133507—Films for enhancing the luminance
    • 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
    • G02F1/133612—Electrical details

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention discloses an airborne liquid crystal display module, which comprises a display function component, a front end reinforcing glass, a liquid crystal screen and a rear end reinforcing glass, wherein the front end reinforcing glass, the liquid crystal screen and the rear end reinforcing glass are sequentially assembled from front to back, the reinforcing glass and the liquid crystal screen are fixedly bonded through an optical glue layer, the optical component comprises a polarization type brightness enhancement film, a brightness enhancement film and a diffusion film, the edges of the front end reinforcing glass, the liquid crystal screen, the rear end reinforcing glass and the optical component are connected onto a structural component through a reinforcing glue layer, a backlight source component is arranged at the rearmost end of the structural component and comprises an L ED unit and a circuit board, the display function component further comprises a circuit control component and is used for realizing internal control and external cross-linking.

Description

Airborne liquid crystal display module with spectrum reduction capability and mapping head-up display
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to an airborne liquid crystal display module with spectrum restoring capability and mapping head-up display.
Background
At present, military equipment such as an airborne equipment, a ship-borne equipment and a ground equipment are widely designed by adopting liquid crystal display, and a liquid crystal display module subjected to reinforcement treatment has high reliability and can meet airborne display requirements. The airborne display mainly provides basic equipment, posture, map and other display information required by flight, and a typical airborne display design at the present stage comprises head-Up Display Systems (HUDs) for displaying part of common information, so that a pilot can conveniently observe the front and acquire basic flight parameter information.
The cabin layout of a typical double-seat fighter plane is designed in a front-back straight-line mode, the front cabin is designed with a head-up display system, and the rear cabin is shielded and influenced by the cabin layout and a pilot in front of the cabin and cannot be designed with the head-up display system. However, the pilot in the cockpit needs to observe the display information of the head-up display system in the cockpit by integrating the driving and task requirements of the cockpit, so an airborne liquid crystal display module with a mapping head-up display function is designed in the cockpit and is used for displaying the superposed picture of a front screen display (single green display) and an external background (sky background transmitted by a main camera).
The scheme of the liquid crystal display module with mapping screen display, which is typically designed and developed at the present stage, is the same as that of the traditional liquid crystal display module, the adopted conventional liquid crystal screen and the white light L ED of the typical blue excited yellow fluorescent powder are backlight sources, the display color of the liquid crystal screen is determined by the color resistance of the liquid crystal screen, the type (color gamut) of the display color is limited, the special requirement of single green color (spectral characteristic) of the head-up display system cannot be mapped specifically, an external background picture collected by a camera cannot be well restored, and large display color difference exists, so that the color difference between the mapping head-up display picture and the front cabin head-up display system is large, and the flight training and the practical application are not facilitated.
Disclosure of Invention
The invention aims to provide an airborne liquid crystal display module with spectrum reduction capability and mapping head-up display, which can better reduce single green color of a front cabin head-up display system, meanwhile, a wide color gamut display technology is adopted, the display color types of the display module are greatly increased, a display color modulation module is arranged in the airborne liquid crystal display module, external pictures transmitted by a camera are matched and modulated with the display color capability of the liquid crystal display module, and the background reduction display consistency is improved.
In order to achieve the above object, the present invention provides an onboard liquid crystal display module with spectral reduction capability and mapping head-up display, comprising a structural assembly and a display functional assembly, an optical assembly and a backlight source assembly mounted in the structural assembly from front to back; wherein,
the display functional component comprises front-end reinforced glass, a liquid crystal screen and rear-end reinforced glass which are sequentially assembled from front to back, and the reinforced glass and the liquid crystal screen are bonded and fixed through an optical glue layer;
the optical component comprises a polarization type brightness enhancement film, a brightness enhancement film and a diffusion film, and the edges of the front end reinforcing glass, the liquid crystal screen, the rear end reinforcing glass and the optical component are connected to the structural component through a reinforcing adhesive layer;
the backlight source assembly is arranged at the rearmost end of the structural assembly and comprises L ED units and a circuit board;
the airborne liquid crystal display module also comprises a circuit control assembly used for realizing internal control and external crosslinking.
Preferably, the reinforcing rubber layer adopts a sealing buffer material with high weather resistance.
Preferably, the L ED cell layout is in an array design and the pitch of the array cells is 3-25 mm.
Preferably, the L ED cells are a three-color L ED design layout and are packaged in three-color either individually or in whole.
Preferably, the tri-color L ED design layout is an inline layout, a delta-type layout, or diagonal.
Preferably, the wavelengths of the three colors L ED are green 520-560nm, blue 410-480nm and red 610-660 nm.
Preferably, the liquid crystal display module adopts a green backlight spectrum design which is completely the same as that of the screen display and is used for mapping the screen display.
Preferably, the display adjustment module inside the liquid crystal display module can implement the autonomous compensation of the display color according to the current display content; the identification mode can be internal communication, clock identification or internal picture identification.
According to the technical scheme, the single green display color of the liquid crystal display module mapped by the screen display is consistent with the screen display by adopting the spectrum matching technology and adopting the green light with the same wavelength as the screen display image source as the backlight green component of the liquid crystal display module, the single green color with the dominant wavelength of the typical screen display about 550nm can be displayed, the consistency of color display reduction is improved, the color display requirement of an external background is considered, the red and blue L ED with high color purity are adopted in the backlight design of the liquid crystal display module as the backlight red and blue components in the liquid crystal display module, the display color gamut of the liquid crystal display module is increased, the color display capability of the liquid crystal display module is expanded, the display input modulator is designed in the display module, the cold and warm color change of the white background of the display module is changed by adjusting the backlight red and blue components to control and match the background color of the external background, the internal color signal components are controlled to adjust the overall display color, and the matching degree of the display color.
Through the display spectrum control and the color matching display modulation of the liquid crystal display module, the color reduction capability of the liquid crystal display module for the mapping screen display and the external background superposed picture display is improved, and the application requirement of airborne display on color consistency is met.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an onboard LCD module with spectral recovery capability for mapping head-up display according to the present invention;
FIG. 2 is a layout of a backlight L ED in the present invention;
FIG. 3 is a layout of L ED cells in the present invention;
fig. 4 is a schematic diagram of the operating principle of the regulator according to the present invention.
Description of the reference numerals
1-1 structural component 1-2 front end reinforced glass
1-3 liquid crystal screen 1-4 rear end reinforced glass
1-5 optical glue layer 1-6 optical component
1-7 backlight source assembly 1-8 reinforced adhesive layer
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "front, rear, inner, outer" and the like included in a term merely represent the orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as a limitation of the term.
Referring to fig. 1, the present invention provides an onboard liquid crystal display module with spectral restoration capability and mapping head-up display, comprising a structural assembly 1-1, and a display functional assembly, an optical assembly 1-6 and a backlight source assembly 1-7 which are installed in the structural assembly 1-1 from front to back; wherein,
the display functional component comprises front-end reinforced glass 1-2, a liquid crystal screen 1-3 and rear-end reinforced glass 1-4 which are sequentially assembled from front to back, and the reinforced glass and the liquid crystal screen 1-3 are fixedly bonded through an optical glue layer 1-5;
the optical component 1-6 comprises a polarization type brightness enhancement film, a brightness enhancement film and a diffusion film, and the edges of the front end reinforced glass 1-2, the liquid crystal screen 1-3, the rear end reinforced glass 1-4 and the optical component 1-6 are connected to the structural component 1-1 through a reinforced adhesive layer 1-8;
the backlight source assembly 1-7 is disposed at the rearmost end of the structural assembly 1-1 and includes L ED cells and a circuit board;
the airborne liquid crystal display module also comprises a circuit control assembly used for realizing internal control and external crosslinking.
In the present embodiment, in order to improve the vibration resistance of the display module, it is preferable that the reinforcing adhesive layers 1 to 8 use a sealing buffer material having high weather resistance.
The design key point of the airborne rear cabin mapping head-up display liquid crystal display module is to improve the color reduction capability of the liquid crystal display module aiming at mapping head-up display and external background superposition picture display, the invention adopts a backlight spectrum control technology, adopts an L ED design with the same main wavelength as a screen display image source to reduce single green display of the screen display, adopts red and blue L ED with high color purity as backlight red and blue components to improve the color gamut of the liquid crystal display, enlarge the display capability of the liquid crystal display, and further improve the reduction capability of the background display by increasing a display input modulator to adapt to a display picture.
For this purpose, it is preferable that L ED cell layout adopts an array design and the pitch of array cells is 3-25mm, as shown in FIG. 2.
It is further preferred that the L ED cells be in a three-color L ED design layout and be packaged individually or in bulk with three colors, and that the three-color L ED design layout be in an in-line layout, delta-type layout, or diagonal (see FIG. 3).
In addition, in order to increase the display color gamut and maintain better screen mapping display capability, the wavelengths of the three colors L ED are preferably 560nm, 480nm, and 660nm, respectively, of green 520-.
In addition, the liquid crystal display module can adopt a green backlight spectrum design which is completely the same as that of the screen display, and the screen display is better mapped.
The display adjusting module in the liquid crystal display module can realize the independent compensation function of the display color according to the current display content, and the identification mode can be internal communication, clock identification or internal picture identification.
The liquid crystal display module is internally provided with a picture optimization modulator of a display mode and content, corresponding color optimization design is carried out aiming at the current input signal and the working mode, and a working principle schematic diagram is shown in figure 4.
The typical application of the liquid crystal display module for rear cabin mapping head-up display and external background superimposed picture display is mapping and superimposed display in day and night mode. The liquid crystal display module can acquire the current picture content and day and night mode state required to be displayed through self-checking display signal input and a backlight day and night mode or through communication with a host, and realize the switching of different ground colors and display colors through analysis, filtration and superposition display of the display content; meanwhile, the red, green and blue components in the backlight are independently and finely controlled (in a PWM wave mode), so that the overall bottom color is controlled to be warm or cold, and accurate reduction display of evening and blue sky is realized.
In summary, through the spectrum matching technology, the single green display color of the liquid crystal display module mapping screen display is consistent with the screen display, the single green color with the dominant wavelength of about 550nm of the typical screen display is displayed, and the consistency of color display reduction is better.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (8)

1. An onboard liquid crystal display module with spectral restorability and mapping head-up display, characterized by comprising a structural component (1-1) and a display function component, an optical component (1-6) and a backlight source component (1-7) which are arranged in the structural component (1-1) from front to back; wherein,
the display functional component comprises front-end reinforced glass (1-2), a liquid crystal screen (1-3) and rear-end reinforced glass (1-4) which are sequentially assembled from front to back, and the reinforced glass and the liquid crystal screen (1-3) are fixedly bonded through an optical glue layer (1-5);
the optical component (1-6) comprises a polarization type brightness enhancement film, a brightness enhancement film and a diffusion film, and the edges of the front end reinforced glass (1-2), the liquid crystal screen (1-3), the rear end reinforced glass (1-4) and the optical component (1-6) are connected to the structural component (1-1) through reinforced adhesive layers (1-8);
the backlight source assembly (1-7) is arranged at the rearmost end of the structural assembly (1-1) and comprises L ED units and a circuit board;
the airborne liquid crystal display module further comprises a circuit control assembly for realizing internal control and external crosslinking.
2. The onboard liquid crystal display module with spectral reduction capability for graphic-up display according to claim 1, characterized in that the reinforcement glue layer (1-8) employs a high weather resistant sealing buffer material.
3. The on-board LCD module with spectral reduction capability for graphic arts display as claimed in claim 1 wherein said L ED cell layout is in array design and the pitch of the array cells is 3-25 mm.
4. The on-board LCD module with spectral reduction capability and graphic-up display of claim 1, wherein the L ED cell is a three-color L ED design layout and is packaged in a three-color stand-alone package or in a single package.
5. The on-board LCD module with spectral recovery capability for graphic arts display of claim 4 wherein the tri-color L ED design layout is in-line layout, delta layout or diagonal layout.
6. The on-board LCD module with spectral restoration capability and mapping head-up display as claimed in claim 4, wherein the wavelengths of the three colors L ED are 560nm green 520-.
7. The on-board LCD module with spectral recovery capability for graphic arts display as claimed in claim 1, wherein the LCD module employs exactly the same green backlight spectral design as the on-screen display for mapping the on-screen display.
8. The onboard liquid crystal display module with spectral restoration capability and mapping head-up display according to claim 1, wherein the display adjustment module inside the liquid crystal display module can realize the autonomous compensation of the display color according to the current display content; the identification mode can be internal communication, clock identification or internal picture identification.
CN202010466335.8A 2020-05-28 2020-05-28 Airborne liquid crystal display module with spectrum reduction capability and mapping head-up display Pending CN111487801A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115657361A (en) * 2022-12-20 2023-01-31 南京惠华电子技术有限公司 A multi-color head-up display digital image source that realizes super-brightness and local alarm prompts

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EP0364346A1 (en) * 1988-10-11 1990-04-18 Thomson-Csf Illumination box for an avionic display device
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