CN2748946Y - Micro-reflecting type LCD structure having high reflectivity - Google Patents
Micro-reflecting type LCD structure having high reflectivity Download PDFInfo
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- CN2748946Y CN2748946Y CN 200420087794 CN200420087794U CN2748946Y CN 2748946 Y CN2748946 Y CN 2748946Y CN 200420087794 CN200420087794 CN 200420087794 CN 200420087794 U CN200420087794 U CN 200420087794U CN 2748946 Y CN2748946 Y CN 2748946Y
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- liquid crystal
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- polaroid
- reflection type
- display device
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Abstract
The utility model discloses a micro-reflecting type LCD structure having high reflectivity. A dual torsion nematic liquid crystal recess is added into the micro-reflecting type LCD for changing polarized state of the light which is shot in from the exterior. Thus, the structure can increase the reflectivity of the reflection film lighted by the light which is shot in form the exterior. The micro-reflecting type LCD of the utility model can provide clear reflection images under the situation that the background light source does not run.
Description
Technical field
The utility model relates to a kind of micro-reflection type LCD, particularly a kind of micro-reflection type liquid crystal display device structure with high reflectance.
Background technology
The contrast of general penetrating LCD (transmissive LCD), penetrance, and color saturation higher, but do not having but can't to see image under the situation of backlight; And semi-transparent visual reflex LCD, though can excel at leveraging external light source, but because will take into account the color saturation and the penetrance of reflective-mode, therefore need to sacrifice the color saturation and the penetrance of the pattern that penetrates, penetrate the color saturation of pattern in order not sacrifice LCD, have simultaneously the function of reflective liquid-crystal display and the difficulty of consideration processing procedure again, just proposed the micro-reflection type LCD.
The micro-reflection type liquid crystal display device structure sees also shown in Figure 1, has a penetrating LCD 4, it sets up a diffusion barrier 3 between the polaroid 2 of brightness enhancement film 1 and this penetrating LCD 4, the film of brightness enhancement film 1 for having directivity, and have a smooth penetrating shaft, it causes different influences to incident light with outgoing luminous energy; Under the situation of not considering brightness enhancement film 1 meeting absorbing light energy, for emergent light, the polarization direction can be different from light and penetrate axial polarized light, rotating to light penetrating shaft direction penetrates again, and for incident light,, be broken down into polarized light parallel and vertical polarized light with light penetrating shaft direction according to the polarization of incident light state, then parallel with light penetrating shaft direction polarized light can be injected brightness enhancement film 1, and vertical polarized light then can be reflected by brightness enhancement film 1.
The characteristic that utilization brightness enhancement film 1 is above-mentioned, prior art is set up a diffusion barrier 3 between brightness enhancement film 1 and polaroid 2, allow and pass through polaroid 2 and the incident light of linear polarization, utilize diffusion barrier 3 to change the polarization of incident light state a little, according to the micro-incident light that this brightness enhancement film 1 can reflect, allow the user under the state of no backlight, still can see image.
Yet existing micro-reflection type LCD, though can allow the user under the situation of no backlight, see image, but because the reflectivity of its reflection incident light (environment light source) is quite limited, therefore the sharpness of its image is bad, if will improve the sharpness under the reflective-mode, must rotate brightness enhancement film 1 with the penetrating shaft that changes brightness enhancement film 1 crossing angle, increase the reflection of incident light rate with this with the penetrating shaft of polaroid 2, however such penetrance that but can reduce the pattern of penetrating; Therefore, prior art can't be taken into account the penetrance of the pattern of penetrating and the reflectivity of reflective-mode simultaneously, can't satisfy user's demand.
The utility model content
Fundamental purpose of the present utility model is to provide a kind of micro-reflection type LCD, and it can provide the show state of the pattern of penetrating and reflective-mode, and takes into account the penetrance of the pattern of penetrating and the reflectivity of reflective-mode, to satisfy user's demand.
The utility model is a kind of micro-reflection type liquid crystal display device structure with high reflectance, comprises a penetrating LCD, a diffusion barrier (diffuser), a brightness enhancement film (DualBrightness Enhancement Film; DBEF), a backlight (Back LightSystem), with a twisted-nematic liquid crystal cave (Twisted Nematic Liquid CrystalCell); This penetrating LCD has one first polaroid, one penetration liquid crystal cave, with one second polaroid, this brightness enhancement film, this first polaroid, has a smooth penetrating shaft respectively with this second polaroid, and this brightness enhancement film is orthogonal or parallel with the light penetrating shaft of this second polaroid, this twisted-nematic liquid crystal cave has allows the polarization of incident light direction revolve the binding mode that turn 90 degrees, with the pattern of passing through that does not change the polarization direction, the micro-reflection type liquid crystal display device structure disposes this backlight from inside to outside in regular turn, this brightness enhancement film, this diffusion barrier, this twisted-nematic liquid crystal cave, with this penetrating LCD.
To sum up, the micro-reflection type liquid crystal display device structure with high reflectance of the present utility model can be taken into account the penetrance of the pattern of penetrating and the reflectivity of reflective-mode, thereby can satisfy user's demand.
Description of drawings
Fig. 1 is the structural drawing of existing micro-reflection type display.
Fig. 2 is the structural drawing of micro-reflection type display of the present utility model.
Fig. 3 is the running synoptic diagram of micro-reflection type display reflects pattern of the present utility model.
Fig. 4 is the running synoptic diagram that micro-reflection type display of the present utility model penetrates pattern.
Fig. 5 is the structural drawing of another embodiment of micro-reflection type display of the present utility model.
Embodiment
For to feature of the present utility model, purpose, and effect have and more in depth understand and approval, it is as follows now to enumerate a preferred embodiment and accompanying drawings:
See also shown in Figure 2, the micro-reflection type liquid crystal display device structure with high reflectance of the present utility model, comprise a penetrating LCD 10, a diffusion barrier 20, a brightness enhancement film 30, a backlight 40, with a twisted-nematic liquid crystal cave 50; This penetrating LCD 10 has one first polaroid 12, one penetration liquid crystal cave 15, with one second polaroid 17, and this brightness enhancement film 30, this first polaroid 12, has a smooth penetrating shaft 301 respectively with this second polaroid 17,121,171, this twisted-nematic liquid crystal cave 50 has allows the polarization direction of incident light 60 revolve the binding mode that turn 90 degrees, with the pattern of passing through that does not change the polarization direction, after this twisted-nematic liquid crystal cave 50 can be handled through the orientation of 90 degree by two glass baseplates (figure does not show) that are coated with transparency electrode, recharge a nematic crystal (figure do not show) and make, it utilizes the control of voltage can produce binding mode again and passes through pattern, the twisted-nematic liquid crystal cave 50 of structure for by pattern, is binding mode when obstructed voltage when energising is pressed as mentioned above.
Please consult shown in Figure 3 again, running synoptic diagram for the utility model reflective-mode, for ease of explanation, the polarization state of incident light 60 all is drawn on the right side of incident light 60 and represents with arrow, the light penetrating shaft 301 of this brightness enhancement film 30 is orthogonal with the light penetrating shaft 171 of this second polaroid 17, extraneous incident light 60 is inciding this penetrating LCD 10, and through after the effect of this second polaroid 17, meeting formation one has the incident light 60 of linear polarization state, this moment, this twisted-nematic liquid crystal cave 50 utilized the control of voltage to be maintained not change the pattern of passing through of polarization direction, allow incident light 60 keep its linear polarization state and incide this diffusion barrier 20, this diffusion barrier 20 can utilize the fine particle with scattered beam function to be scattered in the glue material and make, this incident light 60 of linear polarization state relief that this diffusion barrier 20 can change this incident light 60 a little continues to incide this brightness enhancement film 30, this moment is because the linear polarization state of incident light 60 keeps vertical with the light penetrating shaft 301 of this brightness enhancement film 30 haply, therefore most incident light 60 can be reflected by this brightness enhancement film 30, this incident light that is reflected 60, at this diffusion barrier 20 of process, this twisted-nematic liquid crystal cave 50, behind this penetrating LCD 10, promptly can be the user provides enough bright and vision imaging clearly.
See also shown in Figure 4, penetrate the running synoptic diagram of pattern for the utility model, its same utilization structure as shown in Figure 3, backlight 40 is launched a display light 70, after this brightness enhancement film 30 of process, this display light 70 is by linear polarizationization, and the direction of its linear polarization is parallel with the direction of the light penetrating shaft 301 of this brightness enhancement film 30, this display light 70 continues to incide this diffusion barrier 20, after this diffusion barrier 20 can change the linear polarization state of this display light 70 a little, allow this display light 70 continue to incide this twisted-nematic liquid crystal cave 50, this moment, the operating mode in this twisted-nematic liquid crystal cave 50 was binding modes, therefore the linear polarization state of this display light 70 be revolve turn 90 degrees after, continue to incide this penetrating LCD 10, this moment the linear polarization state of this display light 70 and this penetration second polaroid, 17 keeping parallelisms of LCD 10, so it still can provide the show image of high penetration.
Operating mode as shown in Figure 3 and Figure 4, its main difference are that reflective-mode does not need this backlight 40 luminous, and the operating mode in this twisted-nematic liquid crystal cave 50 is to pass through pattern; The pattern that penetrates then needs this backlight 40 luminous, and the operating mode in this twisted-nematic liquid crystal cave 50 is binding modes, also be that the user needs only the operating mode that changes this twisted-nematic liquid crystal cave 50, can select to use the pattern of penetrating or reflective-mode; The utility model is when the light penetrating shaft 171 of the light penetrating shaft 301 of this brightness enhancement film 30 and this second polaroid 17 is parallel to each other, equally also can operate, when only will use reflective-mode this moment, the operating mode in this twisted-nematic liquid crystal cave 50 was binding modes; And when using when penetrating pattern, the operating mode in this twisted-nematic liquid crystal cave 50 is to pass through pattern.
This diffusion barrier 20 of the present utility model, its role is to and to do small scattering by light, allow the light that passes through distribute more evenly, allow the user can't see the shadow of reflection, please consult shown in Figure 5 again, this diffusion barrier 20 of the present utility model also configurable between this first polaroid 12 and this penetration liquid crystal cave 15, this second polaroid 17, and this penetration liquid crystal cave 15 between, or this second polaroid 17, and this twisted-nematic liquid crystal cave 50 between.
And this penetrating LCD 10 of the present utility model can be that PM-LCD Passive Matrix LCD display (Passive Matrix LCD), Thin Film Transistor-LCD (thin-filmtransistor LCD) or other have the display that uses polaroid, the utility model can penetrate penetrance under the pattern not influencing the micro-reflection type LCD as mentioned above, utilize the control in this twisted-nematic liquid crystal cave 50, increase the reflectivity of reflective-mode, to improve the image definition under the reflective-mode.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. micro-reflection type liquid crystal display device structure with high reflectance, comprise: a penetrating LCD (10), one diffusion barrier (20), one brightness enhancement film (30), with a backlight (40), described penetrating LCD (10) has one first polaroid (12), one penetration liquid crystal cave (15), with one second polaroid (17), and described brightness enhancement film (30), described first polaroid (12), has a smooth penetrating shaft (301 respectively with described second polaroid (17), 121,171), and the light penetrating shaft (301 of described brightness enhancement film (30) and described second polaroid (17), 171) orthogonal;
It is characterized in that, also has a twisted-nematic liquid crystal cave (50), described twisted-nematic liquid crystal cave (50) have the binding mode that allows the polarization direction of incident light (60) revolve to turn 90 degrees, with the pattern of pass through that does not change the polarization direction, described micro-reflection type liquid crystal display device structure disposes described backlight (40), described brightness enhancement film (30), described diffusion barrier (20), described twisted-nematic liquid crystal cave (50), and described penetrating LCD (10) from inside to outside in regular turn.
2. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1 is characterized in that, described brightness enhancement film (30) also can be configured to parallel to each other with the light penetrating shaft (301,171) of described second polaroid (17).
3. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1 is characterized in that described penetrating LCD (10) is the PM-LCD Passive Matrix LCD display.
4. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1 is characterized in that described penetrating LCD (10) is a Thin Film Transistor-LCD.
5. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1 is characterized in that, described diffusion barrier (20) is to utilize the fine particle with scattered beam function to be scattered among the glue material and make.
6. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1, it is characterized in that, described twisted-nematic liquid crystal cave (50) is after being handled through the orientations of 90 degree by two glass baseplates that are coated with transparency electrode, recharges a nematic crystal and makes.
7. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1 is characterized in that, described diffusion barrier (20) is also configurable between described first polaroid (12) and described penetration liquid crystal cave (15).
8. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1 is characterized in that, described diffusion barrier (20) is also configurable between described second polaroid (17) and described penetration liquid crystal cave (15).
9. the micro-reflection type liquid crystal display device structure with high reflectance according to claim 1 is characterized in that, described diffusion barrier (20) is also configurable between described second polaroid (17) and described twisted-nematic liquid crystal cave (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087794 CN2748946Y (en) | 2004-08-13 | 2004-08-13 | Micro-reflecting type LCD structure having high reflectivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087794 CN2748946Y (en) | 2004-08-13 | 2004-08-13 | Micro-reflecting type LCD structure having high reflectivity |
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| Publication Number | Publication Date |
|---|---|
| CN2748946Y true CN2748946Y (en) | 2005-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420087794 Expired - Fee Related CN2748946Y (en) | 2004-08-13 | 2004-08-13 | Micro-reflecting type LCD structure having high reflectivity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076426A (en) * | 2013-03-27 | 2014-10-01 | 日东电工株式会社 | Polarizing plate, liquid crystal display device and method for manufacturing the polarizing plate |
-
2004
- 2004-08-13 CN CN 200420087794 patent/CN2748946Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076426A (en) * | 2013-03-27 | 2014-10-01 | 日东电工株式会社 | Polarizing plate, liquid crystal display device and method for manufacturing the polarizing plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051228 Termination date: 20130813 |