CN205787480U - A kind of head up displays - Google Patents
A kind of head up displays Download PDFInfo
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- CN205787480U CN205787480U CN201620523675.9U CN201620523675U CN205787480U CN 205787480 U CN205787480 U CN 205787480U CN 201620523675 U CN201620523675 U CN 201620523675U CN 205787480 U CN205787480 U CN 205787480U
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- head
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- backlight
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Abstract
The utility model discloses a kind of head up displays, including front plane frame, cover plate, upper spread glass, TFT LCD liquid crystal display screen, lower spread glass, backlight module, backlight and control system.Described head up displays is compatible with traditional CRT simulation image source in performance and framework, facilitates the update of old type；Using high brightness green COB area light source as backlight, luminous efficiency is high, and maximum brightness is up to 20000cd/m2；Backlight uses COB area light source, without lamp shadow phenomenon；Use special spread glass sheet, it is achieved contrast is up to 500:1；There is the features such as volume is little, lightweight, low-power consumption, high reliability simultaneously, there is the biggest versatility, can be widely applied on the head up displays of all kinds of aircraft, also can be applicable in the head-up display system of automobile, there is the biggest market prospect.
Description
Technical field
This utility model relates to a kind of display, the head up displays of a kind of special image source design.
Background technology
The CRT primarily now used puts down imaging source and has that volume is big, Heavy Weight and it needs to high drive, holds
Easily sparking, analog drive circuit is complicated, and reliability is the highest, and a new generation's opportunity of combat shows demand to big visual field grating
More and more urgent, analogue signal can not meet requirement；When display video signal and character information, rely on
Light pen timesharing stacked system, display character ability is little, and information capacity is little, and modern war information gets more and more；
Video signal shows can only use interleaved mode, there is film flicker problem, easily causes vision tired
Labor, is unfavorable for high-strung state of flight.
Utility model content
The purpose of this utility model is to provide a kind of head up displays, can compatible tradition in performance with framework
CRT simulates image source, and has the advantage such as high brightness, high-contrast, and picture does not flashes.
For achieving the above object, this utility model following technical scheme of offer: a kind of head up displays, including
Housing, the preamble part being placed in described housing, display system and control system.
Described preamble part includes front plane frame and is located at the cover plate at described front plane frame rear.
Described display system is located at the rear of described preamble part, including the upper polarisation the most sequentially arranged
Glass, TFT-LCD liquid crystal display screen, lower spread glass, backlight module and backlight.
Described control system electrically connects with described backlight and described TFT-LCD liquid crystal display screen respectively, including driving
With control circuit, power module and outside DVI signal input interface.
Further, described backlight module is made up of blooming and light guide plate, is used for realizing blast and uniform light
Source.
Preferably, described backlight uses COB area light source.
Further, described driving and controlling circuits includes that level switch module, timing controller source electrode drive
Dynamic chip, gamma signal processor, reference voltage process chip and gate-drive chip.
Described level switch module, timing controller, source driving chip sequentially concatenate, by outside DVI
The DVI signal of signal input interface input is sequentially through described level switch module, timing controller and source electrode
Driving chip sends into the source electrode input signal interface of TFT-LCD liquid crystal display screen after processing.
Described power module includes power supply and power supply changeover device, described power supply, power supply changeover device, reference voltage
Process chip and gate-drive chip sequentially concatenates, and the outfan of described gate-drive chip is with described
The gate leve drive end of TFT-LCD liquid crystal display screen connects.
The input of described gamma signal processor connects the outfan of described power supply changeover device, and outfan connects
The input of source driving chip.
Outside input DVI video signal is inputted by outside DVI signal input interface, decodes it through signal
Level needed for sequencing contro is converted to afterwards, through timing controller control and adjustment by level switch module
Later control source driving chip drive TFT-LCD liquid crystal display screen.
Use I2C mode controls backlight driving chip, passes through I2C bus arranges that backlight driving chip is built-in deposits
Device PWM value realizes brightness regulation, meanwhile, controls backlight by the height state arranging I/O mouth level
Open or close.
The described head up displays that this utility model provides simulates image source with traditional CRT in performance and framework
Compatibility, facilitates the update of old type；Use high brightness green COB area light source as backlight, luminescence effect
Rate is high, and maximum brightness is up to 20000cd/m2；Backlight uses COB area light source, without lamp shadow phenomenon；Use
Special spread glass sheet, it is achieved contrast is up to 500:1；There is volume merit little, lightweight, low simultaneously
The features such as consumption, high reliability, have the biggest versatility, and can be widely applied to all kinds of aircraft looks squarely display
On device, also can be applicable to, in the head-up display system of automobile, there is the biggest market prospect.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model；
Fig. 2 is the structured flowchart of control system in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, broadly falls into this utility model
The scope of protection.
Referring to Fig. 1, this utility model provides a kind of head up displays, including housing, be placed in described
Preamble part, display system and control system in housing.
Described preamble part includes front plane frame 1 and is located at the cover plate 2 at described front plane frame 1 rear.
Described display system is located at the rear of described preamble part, including the upper polarisation the most sequentially arranged
Glass 3, TFT-LCD liquid crystal display screen 4, lower spread glass 5, backlight module 6 and backlight 7.
Described backlight module 6 is made up of blooming and light guide plate, is used for realizing blast and uniform source of light.
Described backlight 7 uses COB area light source, can realize light efficiency high, and low in energy consumption, caloric value is few, luminous equal
Even property high.
Refer to Fig. 2, described control system respectively with described backlight 7 and described TFT-LCD liquid crystal display screen 4
Electrical connection, including driving and controlling circuits 81, power module 82 and outside DVI signal input interface 83.
Described driving and controlling circuits 81 includes level switch module 801, timing controller 802, source electrode
Driving chip 803, gamma signal processor 806, reference voltage process chip 807 and gate-drive chip
808。
Described level switch module 801, timing controller 802, source driving chip 803 sequentially concatenate,
The DVI signal inputted by outside DVI signal input interface 83 sequentially through described level switch module 801, time
Sequence control chip 802 and source driving chip 803 send into the source electrode input of TFT-LCD liquid crystal display screen 4 after processing
Signaling interface.
Described power module 82 includes that power supply 804 and power supply changeover device 805, described power supply 804, power supply turn
Parallel operation 805, reference voltage process chip 807 and gate-drive chip 808 sequentially concatenates, and described gate pole
The outfan of driving chip 808 connects with the gate leve drive end of described TFT-LCD liquid crystal display screen 4.
The input of described gamma signal processor 806 connects the outfan of described power supply changeover device 805, defeated
Go out end and connect the input of source driving chip 803.
Outside input DVI video signal is inputted by outside DVI signal input interface 83, decodes through signal
Level needed for sequencing contro is converted to, through timing controller 802 afterwards by level switch module 801
Control and the source driving chip 803 that controls later of adjustment drives TFT-LCD liquid crystal display screen 4.
Use I2C mode controls backlight driving chip, passes through I2C bus arranges that backlight driving chip is built-in deposits
Device PWM value realizes brightness regulation, meanwhile, controls backlight by the height state arranging I/O mouth level
Open or close
To sum up, described head up displays is compatible with traditional CRT simulation image source in performance and framework, convenient
The update of old type；Using high brightness green COB area light source as backlight, luminous efficiency is high, the highest
Brightness is up to 20000cd/m2；Backlight uses COB area light source, without lamp shadow phenomenon；Use special polarisation
Sheet glass, it is achieved contrast is up to 500:1；Have that volume is little, lightweight simultaneously, low-power consumption, highly reliable
The features such as property, have the biggest versatility, can be widely applied on the head up displays of all kinds of aircraft, also may be used
Apply in the head-up display system of automobile, there is the biggest market prospect.
Embodiment the most of the present utility model, for those of ordinary skill in the art
For, it is possible to understand that can be to these embodiments in the case of without departing from principle of the present utility model and spirit
Carry out multiple change, revise, replace and modification, scope of the present utility model by claims and etc.
Jljl limits.
Claims (7)
1. a head up displays, it is characterised in that include housing, the preposition portion being placed in described housing
Point, display system and control system, wherein:
Described preamble part includes front plane frame (1) and the cover plate (2) being located at described front plane frame (1) rear；
Described display system is located at the rear of described preamble part, including the upper polarisation the most sequentially arranged
Glass (3), TFT-LCD liquid crystal display screen (4), lower spread glass (5), backlight module (6) and backlight (7)；
Described control system electrically connects with described backlight (7) and described TFT-LCD liquid crystal display screen (4) respectively,
Including driving and controlling circuits (81), power module (82) and outside DVI signal input interface (83).
A kind of head up displays the most according to claim 1, it is characterised in that: described backlight module (6)
It is made up of blooming and light guide plate, is used for realizing blast and uniform source of light.
A kind of head up displays the most according to claim 1, it is characterised in that: described backlight (7)
Use COB area light source.
A kind of head up displays the most according to claim 1, it is characterised in that: described driving and control
Circuit (81) include level switch module (801), timing controller (802), source driving chip (803),
Gamma signal processor (806), reference voltage process chip (807) and gate-drive chip (808).
A kind of head up displays the most according to claim 4, it is characterised in that: described level conversion mould
Block (801), timing controller (802), source driving chip (803) sequentially concatenate, by outside DVI
The DVI signal that signal input interface (83) inputs is sequentially through described level switch module (801), sequential control
Coremaking sheet (802) and source driving chip (803) send into the source electrode of TFT-LCD liquid crystal display screen (4) after processing
Input signal interface.
A kind of head up displays the most according to claim 4, it is characterised in that: described power module (82)
Including power supply (804) and power supply changeover device (805), described power supply (804), power supply changeover device (805),
Reference voltage processes chip (807) and gate-drive chip (808) sequentially concatenates, and described gate-drive
The outfan of chip (808) connects with the gate leve drive end of described TFT-LCD liquid crystal display screen (4).
A kind of head up displays the most according to claim 4, it is characterised in that at described gamma signal
The input of reason device (806) connects the outfan of described power supply changeover device (805), and outfan connects source electrode
The input of driving chip (803).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523675.9U CN205787480U (en) | 2016-06-01 | 2016-06-01 | A kind of head up displays |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523675.9U CN205787480U (en) | 2016-06-01 | 2016-06-01 | A kind of head up displays |
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| Publication Number | Publication Date |
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| CN205787480U true CN205787480U (en) | 2016-12-07 |
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ID=58136100
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| CN201620523675.9U Active CN205787480U (en) | 2016-06-01 | 2016-06-01 | A kind of head up displays |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448617A (en) * | 2016-12-13 | 2017-02-22 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display brightness control method and circuit for compensating cathode ray tube difference |
| CN107390367A (en) * | 2017-08-30 | 2017-11-24 | 厦门天马微电子有限公司 | A kind of head-up display |
| CN111487801A (en) * | 2020-05-28 | 2020-08-04 | 中航华东光电有限公司 | Airborne liquid crystal display module with spectrum reduction capability and mapping head-up display |
-
2016
- 2016-06-01 CN CN201620523675.9U patent/CN205787480U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448617A (en) * | 2016-12-13 | 2017-02-22 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display brightness control method and circuit for compensating cathode ray tube difference |
| CN107390367A (en) * | 2017-08-30 | 2017-11-24 | 厦门天马微电子有限公司 | A kind of head-up display |
| CN111487801A (en) * | 2020-05-28 | 2020-08-04 | 中航华东光电有限公司 | Airborne liquid crystal display module with spectrum reduction capability and mapping head-up display |
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