CN207336957U - A kind of simple projection arrangement formed using LCD miniscopes - Google Patents
A kind of simple projection arrangement formed using LCD miniscopes Download PDFInfo
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- CN207336957U CN207336957U CN201721524902.0U CN201721524902U CN207336957U CN 207336957 U CN207336957 U CN 207336957U CN 201721524902 U CN201721524902 U CN 201721524902U CN 207336957 U CN207336957 U CN 207336957U
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- eyeglass
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- point light
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Abstract
The utility model discloses a kind of simple projection arrangement formed using LCD miniscopes,Backlight source module including miniature LCD display and positioned at the back side rear of miniature LCD display,Eyeglass three is distributed along optical axis interval and eyeglass four completes projection in the positive front of miniature LCD display,By on the image projecting of miniature LCD display to wall or on screen,The backlight source module includes high-power single led point light source,Eyeglass one,Eyeglass two,LED point light source,Eyeglass one,Eyeglass two is spaced apart along optical axis L,The light that LED point light source is sent projects eyeglass two after the refraction by eyeglass one,Complete the work of light source illumination in the back side for uniformly projecting miniature LCD display after the refraction of eyeglass two again,It can solve of high cost,Power is low,Uneven illumination is even cause to project it is uneven,The problem of video image quality of display is bad.
Description
Technical field
It the utility model is related to a kind of simple projection arrangement formed using LCD miniscopes.
Background technology
So-called backlight (BackLight) is a kind of light source positioned at liquid crystal display (LCD) behind, its illumination effect
LCD MODULE visual effect will be directly influenced.Liquid crystal does not shine in itself, it shows that figure or character are them to light
The result of modulation.With the continuous development of LCD technology, the application neck of liquid crystal display particularly colour liquid crystal display device
Also constantly widening in domain.For the quality of backlight performance in addition to it can directly affect LCD imaging quality, the cost of backlight accounts for LCD
The 30-50% of module, the electric power consumed more account for the 75% of module, can say it is considerable spare part in LCD module.It is high-precision
Carefully, large-sized LCD, it is necessary to have that high performance backlight technology is matched, therefore when LCD industries make great efforts developing new opplication field
While, the high performance (such as high brightness, cost degradation, power reducing, lightening) of backlight technology also plays backstage
The role of person who has rendered outstanding service.
Backlight is to provide the light source of LCD panel, mainly by groups such as LED light source, light guide plate, optical film piece, plastic frames
Into.Backlight has brightness high, and long lifespan, shine the features such as uniform.Mainly there are tri- kinds of backlight classes of EL, CCFL and LED at present
Type.Wherein, LED backlight is applied relatively broad, it has two kinds of structures：Backlight module side-light type and backlight module full run-down type.
Backlight module side-light type：Light emitting source (Edge lighting) is list Zhi Guangyuan of the pendulum in side, and light guide plate adopts injection
Shaping is designed without printing-type, is generally usually used in the backlight module of less than 30 cun small-medium sizes, the light source design of its side incidence, is gathered around
There are light weight, slim, narrow frame, the characteristic of low power consumption, be also mobile phone, the light source of tablet computer, notebook computer, also there is large scale
Television backlight module uses side-light type structure.
Backlight module full run-down type：The backlight module of (Bottom lighting) oversize, side-light type structure can not
Take advantage in weight, consumption electric power and brightness, thus without light guide plate and light source be positioned over immediately below full run-down type structure
Just it is developed.After light source is projected by baffle reflection by spontaneous light source (such as fluorescent tube, LED etc.), upwards through diffusion
Plate is dispersed to be projected after front, and because accommodation space becomes larger, fluorescent tube can use 2 fluorescent tube at most according to TFT panel size, but together
When also increase the thickness of module, weight, power consumption, its advantage be high briliancy, good light extraction visual angle, light utilization ratio are high,
Simple structure etc..
The utility model is the knot of the backlight module full run-down type of the simple projection arrangement formed for LCD miniscopes
Structure is improved, and backlight module full run-down type is by several LED light sources of uniform layout, some LED light sources on an aluminum substrate
Shine and projected on LCD display at the same time, multiple LED light shine directly into and video is shown on LCD display into array distribution
Image, so has the following disadvantages：
1) multiple LED light are used, it is of high cost；
2) LED light source power is low；
3) uneven illumination is even causes to project uneven, and the video image quality of display is bad.
4) imaging cannot focus, and influence to use；
The content of the invention
The purpose of this utility model is to provide a kind of simple projection arrangement formed using LCD miniscopes, passes through
Using a kind of backlight source module, which includes high-power single led point light source, eyeglass one, eyeglass two, LED points
Light source, eyeglass one, eyeglass two are distributed along optical axis interval, and the light that LED point light source is sent projects mirror after the refraction by eyeglass one
Piece two, then uniformly project after the refraction of eyeglass two back side of miniature LCD display, it is possible to solve of high cost, power
Low, uneven illumination is even to cause to project uneven, the problem of video image quality of display is bad.
The purpose of this utility model is achieved by following technical proposals：
1st, the purpose of this utility model is to provide, a kind of simple projection arrangement formed using LCD miniscopes, bag
Miniature LCD display and the backlight source module positioned at the back side rear of miniature LCD display are included, in miniature LCD display just
The front in face is distributed eyeglass three along optical axis interval and eyeglass four completes projection, and the image projecting of miniature LCD display is arrived
On wall or on screen, the backlight source module includes high-power single led point light source, eyeglass one, eyeglass two, LED points
Light source, eyeglass one, eyeglass two are spaced apart along optical axis L, and the light that LED point light source is sent projects mirror after the refraction by eyeglass one
Piece two, then uniformly project after the refraction of eyeglass two back side of miniature LCD display and complete the work of light source illumination.
Eyeglass two described above is convex lens piece, and eyeglass one is irregular eyeglass, shape among the plane of light incidence of eyeglass one
Into incident concave surface, exit facet is arcuate surface, so that the light for sending LED point light source uniformly exhales, makes it equably to throw
It is mapped on eyeglass two.
Eyeglass three described above is convex lens piece, and the eyeglass four is convex lens piece.
High-power single led point light source described above refers to that its power is maximum and is equal to 5 watts.
LED point light source described above, eyeglass one, eyeglass two, miniature LCD display, eyeglass three, eyeglass four are installed on set
The inside of cylinder base.
Receiver described above includes upper casing and lower casing, and upper casing and lower casing cooperate, and are formed and accommodate LED point light
Source, eyeglass one, eyeglass two, miniature LCD display, eyeglass three, the accommodating cavity of eyeglass four.
Miniature LCD display described above assembles by LCD right pressing plates, top board, LCD left pressing plates and to form LCD
Module.
Single led point light source described above is installed on aluminum substrate, and aluminum substrate is installed on heat sink.
Eyeglass four described above is installed on inside lens barrel, and lens barrel is installed on the end of receiver, in the end of receiver
Outside left focusing ring and right focusing ring are installed, be provided with guide groove on left focusing ring and right focusing ring leads with what lens barrel lateral surface protruded
Bar coordinates.
The utility model compared with prior art, has the effect that：
1) a kind of simple projection arrangement formed using LCD miniscopes, including miniature LCD display and positioned at micro-
The backlight source module at the back side rear of type LCD display, the backlight source module include high-power single led point light source,
Eyeglass one, eyeglass two, LED point light source, eyeglass one, eyeglass two are distributed along optical axis interval, and the light that LED point light source is sent passes through eyeglass
Eyeglass two is projected after one refraction, then the back side of miniature LCD display is uniformly projected after the refraction of eyeglass two, it is adopted
It is single led point light source, power is high, and cost is low, the uniform illumination after being reflected by eyeglass, so as to project uniformly, LCD is micro-
The video image quality that escope is shown is good.
2) eyeglass two is convex lens piece, and eyeglass one is irregular eyeglass, is formed among the plane of light incidence of eyeglass one incident recessed
Face, exit facet are arcuate surfaces, so that the light for sending LED point light source uniformly exhales, make it equably to project eyeglass
On two, the video image quality that LCD miniscopes are shown is more preferable.
3) by installing left focusing ring and right focusing ring in the outside of the end of receiver, focusing is realized, improving influences matter
Amount, it is easy to use.
4) eyeglass three described in is convex lens piece, and the eyeglass four is convex lens piece, preferably amplifies the picture of LCD display
Face, then projects in plane.
5) the high-power single led point light source described in refers to that its power is maximum and is equal to 5 watts, can be very good to ensure video
Brightness of image.
6) single led point light source is installed on aluminum substrate, and aluminum substrate is installed on heat sink,
Brief description of the drawings：
Fig. 1 is the explosive view for the miniature LCD display system that the utility model embodiment provides；
Fig. 2 is the sectional view for the miniature LCD display system that the utility model embodiment provides；
Fig. 3 is the LCD system backlight index path that the utility model embodiment provides；
Fig. 4 is the LCD system projecting light path figure that the utility model embodiment provides.
Embodiment：
1st, the utility model is described in further detail below by specific embodiment and with reference to attached drawing.Such as Fig. 1 to 4
Shown, provided in this embodiment is a kind of simple projection arrangement formed using LCD miniscopes, including miniature LCD is shown
Show device and the backlight source module positioned at the back side rear of miniature LCD display, on the positive front edge of miniature LCD display 18
Optical axis L is spaced apart eyeglass 38 and eyeglass 4 12 completes projection, by the image projecting of miniature LCD display 18 to wall
Or on screen, the backlight source module includes high-power single led point light source 5, eyeglass 1, eyeglass 27, LED point light
Source 5, eyeglass 1, eyeglass 27 are spaced apart along optical axis L, and the light that LED point light source 5 is sent projects after the refraction by eyeglass 1
To eyeglass 27, then uniformly project after the refraction of eyeglass 27 back side of miniature LCD display 18 and complete light source illumination
Work..
Preferably, eyeglass 27 is convex lens piece, and eyeglass 1 is irregular eyeglass, shape among the plane of light incidence of eyeglass 1
Into incident concave surface 61, exit facet is arcuate surface 62, so that the light for sending LED point light source 5 uniformly exhales, makes it uniform
Ground is projected on eyeglass 27.
Preferably, the eyeglass 38 is convex lens piece, and the eyeglass 4 12 is convex lens piece.
Preferably, the high-power single led point light source 5 refers to that its power is maximum and is equal to 5 watts.
Preferably, LED point light source 5, eyeglass 1, eyeglass 27, miniature LCD display 18, eyeglass 38, eyeglass 4 12 are pacified
Mounted in the inside of receiver 100.
Preferably, the receiver 100 includes upper casing 14 and lower casing 9, and upper casing 14 and lower casing 9 cooperate, and are formed
Accommodate LED point light source 5, eyeglass 1, eyeglass 27, miniature LCD display 18, eyeglass 38, the accommodating cavity of eyeglass 4 12.
Preferably, the miniature LCD display 18 is assembled by LCD right pressing plates 17, top board 19, LCD left pressing plates 20
Get up to be formed LCD modules.
Preferably, the single led point light source 5 is installed on aluminum substrate, and aluminum substrate is installed on heat sink 4.
Preferably, the eyeglass 4 12 is installed on the inside of lens barrel 13, and lens barrel 13 is installed on the end of receiver 100,
Left focusing ring 10 and right focusing ring 15 are installed in the outside of the end of receiver 100, are provided with left focusing ring 10 and right focusing ring 15
The guide rod 2 that guide groove 1 is protruded with 13 lateral surface of lens barrel coordinates.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify the technical solution described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (9)
1. a kind of simple projection arrangement formed using LCD miniscopes, including miniature LCD display and positioned at miniature
The backlight source module at the back side rear of LCD display, divides in the positive front of miniature LCD display (18) along optical axis L interval
Cloth eyeglass three (8) and eyeglass four (12) complete projection, on the image projecting of miniature LCD display (18) to wall or will shield
On curtain, it is characterised in that：The backlight source module includes high-power single led point light source (5), eyeglass one (6), eyeglass two
(7), LED point light source (5), eyeglass one (6), eyeglass two (7) are spaced apart along optical axis L, and the light that LED point light source (5) is sent passes through
Eyeglass two (7) is projected after the refraction of eyeglass one (6), then uniformly projects miniature LCD after the refraction of eyeglass two (7) and shows
Complete the work of light source illumination in the back side of device (18).
2. a kind of simple projection arrangement formed using LCD miniscopes according to claim 1, its feature are existed
In：Eyeglass two (7) is convex lens piece, and eyeglass one (6) is irregular eyeglass, is formed among the plane of light incidence of eyeglass one (6) incident
Concave surface (61), exit facet are arcuate surface (62), so that the light for sending LED point light source (5) uniformly exhales, make it uniform
Ground is projected on eyeglass two (7).
3. a kind of simple projection arrangement formed using LCD miniscopes according to claim 2, its feature are existed
In：The eyeglass three (8) is convex lens piece, and the eyeglass four (12) is convex lens piece.
4. a kind of simple projection arrangement formed using LCD miniscopes according to claim 3, its feature are existed
In：The high-power single led point light source (5) refers to that its power is maximum and is equal to 5 watts.
5. a kind of simple projection arrangement formed using LCD miniscopes according to claim 1 or 2 or 3 or 4,
It is characterized in that：LED point light source (5), eyeglass one (6), eyeglass two (7), miniature LCD display (18), eyeglass three (8), eyeglass
Four (12) are installed on the inside of receiver (100).
6. a kind of simple projection arrangement formed using LCD miniscopes according to claim 5, its feature are existed
In：The receiver (100) includes upper casing (14) and lower casing (9), and upper casing (14) and lower casing (9) cooperate, and form appearance
Receive LED point light source (5), eyeglass one (6), eyeglass two (7), miniature LCD display (18), eyeglass three (8), the appearance of eyeglass four (12)
Put chamber.
7. a kind of simple projection arrangement formed using LCD miniscopes according to claim 6, its feature are existed
In：The miniature LCD display (18) is assembled by LCD right pressing plates (17), top board (19), LCD left pressing plates (20)
Form LCD modules.
8. a kind of simple projection arrangement formed using LCD miniscopes according to claim 7, its feature are existed
In：The single led point light source (5) is installed on aluminum substrate, and aluminum substrate is installed on heat sink (4).
9. a kind of simple projection arrangement formed using LCD miniscopes according to claim 8, its feature are existed
In：The eyeglass four (12) is installed on inside lens barrel (13), and lens barrel (13) is installed on the end of receiver (100), in sleeve
The outside of the end of seat (100) is installed by left focusing ring (10) and right focusing ring (15), left focusing ring (10) and right focusing ring (15)
On be provided with the guide rod (2) of guide groove (1) and lens barrel (13) lateral surface protrusion and coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524902.0U CN207336957U (en) | 2017-11-15 | 2017-11-15 | A kind of simple projection arrangement formed using LCD miniscopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524902.0U CN207336957U (en) | 2017-11-15 | 2017-11-15 | A kind of simple projection arrangement formed using LCD miniscopes |
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| Publication Number | Publication Date |
|---|---|
| CN207336957U true CN207336957U (en) | 2018-05-08 |
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ID=62427903
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721524902.0U Active CN207336957U (en) | 2017-11-15 | 2017-11-15 | A kind of simple projection arrangement formed using LCD miniscopes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208073A1 (en) * | 2020-04-17 | 2021-10-21 | 京东方科技集团股份有限公司 | Focusing assembly and head-mounted display device |
| CN113888957A (en) * | 2021-10-21 | 2022-01-04 | 深圳市光科全息技术有限公司 | Modulation assembly for pixel time sequence light splitting |
-
2017
- 2017-11-15 CN CN201721524902.0U patent/CN207336957U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208073A1 (en) * | 2020-04-17 | 2021-10-21 | 京东方科技集团股份有限公司 | Focusing assembly and head-mounted display device |
| US11947181B2 (en) | 2020-04-17 | 2024-04-02 | Beijing Boe Optoelectronics Technology Co., Ltd. | Focusing assembly and head-mounted display device |
| CN113888957A (en) * | 2021-10-21 | 2022-01-04 | 深圳市光科全息技术有限公司 | Modulation assembly for pixel time sequence light splitting |
| CN113888957B (en) * | 2021-10-21 | 2023-09-26 | 深圳市光科全息技术有限公司 | Modulation component for pixel time sequence light splitting |
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