CN2662288Y - Dual display mode LCD - Google Patents
Dual display mode LCD Download PDFInfo
- Publication number
- CN2662288Y CN2662288Y CN 200320101505 CN200320101505U CN2662288Y CN 2662288 Y CN2662288 Y CN 2662288Y CN 200320101505 CN200320101505 CN 200320101505 CN 200320101505 U CN200320101505 U CN 200320101505U CN 2662288 Y CN2662288 Y CN 2662288Y
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- lcd
- display mode
- pair
- liquid crystal
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Abstract
The utility model relates to a dual-display LCD monitor, which comprises an upper transparent substrate and a lower transparent substrate. The utility model is deployed in parallel spacing relationship and is composed of a liquid crystal layer arranged between the two transparent substrates, a semi-reflective layer arranged between the liquid crystal layer and the lower transparent substrate, a colored filter arranged between the semi-reflective layer and the lower transparent substrate, upper and lower polarizers arranged on the outer surfaces of the upper and lower substrates respectively, and a backlight module arranged in the backlight position of the color filter. The utility model not only provides the reflective mode of high brightness grayscale display, but also takes the penetration mode of high chrominance display into consideration at the same time, thus the device has the advantages of power saving and using facilitation.
Description
Technical field
The utility model relates to LCD (the Liquid CrystalDisplay of a kind of pair of display mode, LCD), particularly, make the LCD of two display modes of its high brightness that can have GTG and colored two display modes concurrently and high chroma requirement about a kind of semi-reflective LCD MODULE.
Background technology
Press, known semi-reflective colour liquid crystal display device is to utilize the light reflection of external environment and show under reflective-mode, and cooperates backlight module to provide backlight under the pattern of penetrating, then for penetrating demonstration.
The structure of known semi-reflecting liquid-crystal display, as shown in Figure 1, one LCD 10 comprises lower glass plate 12 on two, 12 ', it is with parallel relation configuration up and down, one liquid crystal layer 14 is set between the apparent surface of upper glass plates 12 and lower glass plate 12 ' in regular turn, one colored filter 16 and a semi-reflective layer 18, and last, lower glass plate 12,12 ' outside surface respectively covers Polarizer 20 and following Polarizer 20 ' on one, in the position backlight of semi-reflective layer 18 backlight module 22 is set again, when then light penetration backlight being penetrated again by last Polarizer 20 when backlight module 22 unlatchings, be and penetrate demonstration, close and work as backlight module 22, utilizing incident light to reflect shows, be reflection and show that this kind display mode is the principle of semi-reflecting liquid-crystal display, has been widely used on the display panel of colored mobile phone at present.
But aforementioned LCD 10 structures that semi-reflective layer 18 are arranged at colored filter 16 belows, mobile phone is to be under the reflective-mode when standby, that is backlight module 22 does not start, because extraneous light utilizes semi-reflective layer 18 to reflect, light need penetrate colored filter 16 secondaries, and the transmittance of colored filter 16 is limited, therefore cause the energy loss height of reflection ray, and make that the general black and white mobile phone of luminance factor is much lower, make colored mobile phone when standby, under general environment,, make to show that fruit is on duty mutually because darker; For improving the reflectivity of color monitor, known techniques reduces colored filter 16 color selectances often, but sacrifices its color saturation thus, and can't take into account the requirement of high reflectance and high chroma.Moreover, under holding state, the user only need learn data such as time, battery capacity usually, therefore display gets final product with the reflective-mode effect of white and black displays, but not good because of known display effect, the common Chang Bixu of user starts the pattern that penetrates and increases brightness to trigger backlight, not only power consumption and shorten battery service time, and be difficult for directly with the naked eye clear reading picture, and have the more not convenient puzzlement of use.
Summary of the invention
Fundamental purpose of the present utility model provides the LCD of a kind of pair of display mode, it is to make the semi-reflective layer of color monitor be arranged at the top of colored filter, use under reflective-mode, reflected light can not pass through colored filter, so that under the prerequisite of the color saturation that does not reduce colored filter, while can reach the high reflectance of white-black pattern and penetrate the double benefit of the high chroma of pattern, effectively overcomes known the two disappearance that can't take into account.
Another purpose of the present utility model is that the LCD of a kind of pair of display mode is being provided, it is when being in holding state, be to utilize reflective-mode to provide the GTG of clear and high brightness to show, can under general environment, know reading display frame, and need not start backlight, and then have low power consumption and easy-to-use effect.
A purpose more of the present utility model provides the LCD of a kind of pair of display mode, by upper and lower one semi-reflective layer is set respectively at colored filter, and offering number at semi-reflective layer windows, in order to do being concentrated, light penetrates by windowing, with total throughput that promotes light and the energy loss that reduces light, and then the brightness that improves the pattern that penetrates.
The utility model provides the LCD of a kind of pair of display mode, comprises transparency carrier about in the of two, and it is the relation configuration with parallel interval, is provided with a liquid crystal layer between this two transparency carrier; One semi-reflective layer is arranged between this liquid crystal layer and this time transparency carrier; One colored filter is arranged between this semi-reflective layer and this time transparency carrier; Polarizer about in the of two is to lay respectively on the outside surface of this upper and lower transparency carrier; And a backlight module, be arranged on the position backlight of this colored filter.
The utility model provides the LCD of a kind of pair of display mode, and this liquid crystal layer comprises a transparency conducting layer, a layer of liquid crystal molecule and a transparency conducting layer more in regular turn.
The utility model provides the LCD of a kind of pair of display mode, and this transparency carrier is a glass material.
The utility model provides the LCD of a kind of pair of display mode, more comprises one in order to drive the active drive assembly of indivedual demonstration color lumps.
The utility model provides the LCD of a kind of pair of display mode, and this liquid crystal layer is to adopt super twist nematic liquid crystal structure.
The utility model provides the LCD of a kind of pair of display mode, and the reflectivity of this semi-reflective layer is between 15% to 95%.
The utility model provides the LCD of a kind of pair of display mode, and the reflecting surface of this semi-reflective layer more offers plural number first and windows.
The utility model provides the LCD of a kind of pair of display mode, and this colored filter below more is provided with a reflection horizon, and this reflection horizon offers with this and first windows and corresponding second window.
The utility model provides the LCD of a kind of pair of display mode, and this reflective-mode provides GTG and shows, this pattern of penetrating provides colored the demonstration.
The utility model provides the LCD of a kind of pair of display mode, more comprises two phasic difference compensating plates, is arranged at respectively between two upper and lower Polarizers and this two transparency carrier.
The reflective-mode that the utility model not only can provide the high brightness GTG to show can be taken into account the pattern that penetrates that high chroma shows simultaneously, and has the power supply of saving and easy-to-use effect.
Description of drawings
Fig. 1 is the structural representation of known semi-reflecting liquid-crystal display.
Fig. 2 is the structural representation of the utility model one embodiment.
Fig. 3 is the partial structurtes synoptic diagram of another embodiment of the utility model.
Embodiment
Beneath by the appended graphic explanation in detail of specific embodiment cooperation, when the effect that is easier to understand the purpose of this utility model, technology contents, characteristics and is reached.
The utility model is to have reflective-mode and the semi-reflective layer of the colour liquid crystal display device that the pattern that penetrates shows is arranged on the colored filter top, use when utilizing reflective-mode to show, reflected light can not pass through colored filter, to reduce light loss, provides GTG display frame clearly.
As shown in Figure 2, it is structural representation for the LCD of the two display modes of the utility model, one LCD 30 comprises transparency carrier 32 about in the of two, 32 ', it is the relation configuration with parallel interval, this two transparency carrier 32,32 ' normally is made of glass material, last, following transparency carrier 32,32 ' two a liquid crystal layer 34 is set in regular turn between the surface relatively, one semi-reflective layer 36 and a colored filter 38, liquid crystal layer 34 is to utilize liquid crystal molecule to be subjected to electric field driven and produce to turn to, show image when light is passed through, the reflectivity of semi-reflective layer 36 is between 15% to 95%, provide incident light reflection and backlight to penetrate, colored filter 38 is that the block of cells by plural red green blue tricolor rearranges basically, produces the color of wanting by absorbing undesired wavelength; Other has Polarizer 40,40 ' about in the of two to be separately positioned on upper and lower transparency carrier 32,32 ' the outside surface, so that light can be by polarization after passing up and down Polarizer 40,40 '; In the position backlight of colored filter 38 and depend on down that Polarizer 40 ' below then is provided with a backlight module 42, so that backlight to be provided.Wherein, Polarizer 40,40 ' is respectively made a general reference the combination of the phasic difference compensating plate of Polarizer and necessity usually, and the potential difference compensating plate is between Polarizer and transparency carrier, and this is the standing procedure of prior art, so do not give unnecessary details.
Again, liquid crystal layer 34 dust heads adopt thread (the Spuper Twisted Nematic of super twist, STN) liquid crystal structure, its structure normally includes the upper and lower transparent conductor layers of two configured in parallel, it is that each is with last, following transparency carrier 32,32 ' inside surface is relative, the conductive materials dust head of transparency conducting layer is tin indium oxide (Indium Tin Oxide, ITO), last, more be respectively equipped with a both alignment layers on relative two surfaces of following transparency conducting layer, both alignment layers is generally Polyimide (Powimide, PI) coating, and there is a layer of liquid crystal molecule to be folded between above-mentioned two both alignment layers, to utilize two transparency conducting layers, drive liquid crystal molecule and produce the orientation variation as transparency electrode.Because transparency conducting layer and both alignment layers are the details of common known techniques, so repeat no more.
In addition, above last transparency carrier 32 or down, more can be provided with one in order to drive the active drive assembly of indivedual demonstration color lumps, dust head such as membrane transistor (Thin-FilmTransistor, TFT) element below the transparency carrier 32 '.
After understanding structure of the present utility model, next, the LCD 30 that describes two display modes in detail of continuing is at reflective-mode and penetrate effect under the pattern.Under reflective-mode, extraneous light incident is through last Polarizer 40 and by after the polarization, the light of polarization passes transparency carrier 32 and liquid crystal layer 34 again, after liquid crystal molecule reverses the change polarized condition (polarized condition generally is designed to the circular polarization state), when light arrives semi-reflective layer 36, part light is reflected by semi-reflective layer 36, reflected light ray is similarly passed through liquid crystal layer 34, last transparency carrier 32, via last Polarizer 40 polarisation effects the light of part can be penetrated at last, wherein the voltage that produces by transparency electrode changes the orientation of liquid crystal molecule, and change is by the polarized condition of the polarization light of liquid crystal layer 34, different polarized condition causes the light intensity difference, and reaches the Presentation Function of control light and shade.Therefore, LCD 30 is to utilize the reflection of extraneous light to show grey-tone image under reflective-mode, owing to need not start backlight module group 42, therefore has the advantage of saving electric energy and prolonging the battery stand-by time; Simultaneously, because semi-reflective layer 36 of the present utility model is arranged on the colored filter 38, therefore under reflective-mode, reflected light can or not be absorbed through colored filter 38, so can reach the effect of high reflectance.
On the other hand, when use penetrates pattern, when at first the backlight irradiate light of being sent by backlight module group 42 is through Polarizer down 40 ' by polarization, polarized condition generally is designed to the circular polarization state, the light of polarization passes down transparency carrier 32 ' and colored filter 38 again, see through the red of colored filter 38, blue, the effect of green three picture elements, polarization light demonstrates the picture element of various different colours via the absorption of colored rate mating plate 38 color lumps, then a part of light penetrates through semi-reflective layer 36 and liquid crystal layer 34 again, penetrate light be subjected to liquid crystal alignment influence and after producing the different polarization state, pass transparency carrier 32 again and go up Polarizer 40, the last light that penetrates is promptly formed various chromatic images and the figure that naked eyes are seen.
Therefore, the utility model can reach the effect of taking into account high reflectance and high chroma simultaneously under the prerequisite of the color saturation that does not need to reduce colored filter.When standby, utilize reflective-mode to provide GTG clear, high brightness to show, can under general environment, know reading display frame, and need not start backlight, and then have low power consumption and easy-to-use advantage; Under the pattern of penetrating, cooperate backlight module to provide backlight, then, do not need fully as prior art, yield to reflective-mode and lose color saturation for the colour with high chroma shows.
In addition, please consult shown in Figure 3 again, it is partial structurtes synoptic diagram for another embodiment of the utility model, the structure of this LCD 10 and structural similarity shown in Figure 2, the mode that is to use mirror surface to window that do not exist together realizes reflection horizon 36, it is except being provided with above the colored filter 38 semi-reflective layer 36, below colored filter 38, more be provided with another similar semi-reflective layer 36 ', and the reflecting surface of semi-reflective layer 36 ' is towards backlight module group 42, semi-reflective layer 36 about in the of two, 36 ' reflecting surface respectively offers plural number and correspondingly windows 44, can be directly 44 penetrate in order to do the light that makes backlight module group 42 via windowing, or after constantly reflecting (recovery), semi-reflective layer 36 ' and 42 processes of backlight module group 44 penetrate via windowing again, pass through the area of colored filter 38 and make light not pass semi-reflective layer 36 by reducing light, 36 ', not only can increase the total throughput of light, simultaneously can reduce light and pass semi-reflective layer 36, portion of energy loss in the time of 36 ', and then reach the effect that lifting penetrates the brightness of pattern.
The above is by embodiment characteristics of the present utility model to be described, its purpose is had the knack of this operator and can be understood content of the present utility model and implement according to this making, and non-limiting claim of the present utility model, do not modify or revise so all other breaks away from the equivalence that spirit that the utility model discloses finishes, must be included in the claim of the following stated.
Claims (10)
1, the LCD of a kind of pair of display mode is characterized in that: comprise transparency carrier about in the of two, it is the relation configuration with parallel interval, is provided with a liquid crystal layer between this two transparency carrier; One semi-reflective layer is arranged between this liquid crystal layer and this time transparency carrier; One colored filter is arranged between this semi-reflective layer and this time transparency carrier; Polarizer about in the of two is to lay respectively on the outside surface of this upper and lower transparency carrier; And a backlight module, be arranged on the position backlight of this colored filter.
2, the LCD of according to claim 1 pair of display mode is characterized in that: this liquid crystal layer comprises a transparency conducting layer, a layer of liquid crystal molecule and a transparency conducting layer more in regular turn.
3, the LCD of according to claim 1 pair of display mode is characterized in that: this transparency carrier is a glass material.
4, the LCD of according to claim 1 pair of display mode is characterized in that: more comprise one in order to drive the active drive element of indivedual demonstration color lumps.
5, the LCD of according to claim 1 pair of display mode is characterized in that: this liquid crystal layer is to adopt super twist nematic liquid crystal structure.
6, the LCD of according to claim 1 pair of display mode is characterized in that: the reflectivity of this semi-reflective layer is between 15% to 95%.
7, the LCD of according to claim 1 pair of display mode is characterized in that: the reflecting surface of this semi-reflective layer more offers plural number first and windows.
8, the LCD of according to claim 7 pair of display mode is characterized in that: this colored filter below more is provided with a reflection horizon, and this reflection horizon offers with this and first windows and corresponding second window.
9, the LCD of according to claim 1 pair of display mode is characterized in that: this reflective-mode provides GTG and shows, this pattern of penetrating provides colored the demonstration.
10, the LCD of according to claim 1 pair of display mode is characterized in that: more comprise two phasic difference compensating plates, be arranged at respectively between two upper and lower Polarizers and this two transparency carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101505 CN2662288Y (en) | 2003-10-20 | 2003-10-20 | Dual display mode LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101505 CN2662288Y (en) | 2003-10-20 | 2003-10-20 | Dual display mode LCD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2662288Y true CN2662288Y (en) | 2004-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320101505 Expired - Fee Related CN2662288Y (en) | 2003-10-20 | 2003-10-20 | Dual display mode LCD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2662288Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169540B (en) * | 2006-10-27 | 2010-04-14 | 群康科技(深圳)有限公司 | Half-penetration half-reflection liquid crystal display panel and its liquid crystal display device |
| US9772530B2 (en) | 2010-05-14 | 2017-09-26 | Dolby Laboratories Licensing Corporation | High dynamic range displays using filterless LCD(s) for increasing contrast and resolution |
| US10571762B2 (en) | 2010-05-14 | 2020-02-25 | Dolby Laboratories Licensing Corporation | High dynamic range displays using filterless LCD(s) for increasing contrast and resolution |
-
2003
- 2003-10-20 CN CN 200320101505 patent/CN2662288Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169540B (en) * | 2006-10-27 | 2010-04-14 | 群康科技(深圳)有限公司 | Half-penetration half-reflection liquid crystal display panel and its liquid crystal display device |
| US9772530B2 (en) | 2010-05-14 | 2017-09-26 | Dolby Laboratories Licensing Corporation | High dynamic range displays using filterless LCD(s) for increasing contrast and resolution |
| US10571762B2 (en) | 2010-05-14 | 2020-02-25 | Dolby Laboratories Licensing Corporation | High dynamic range displays using filterless LCD(s) for increasing contrast and resolution |
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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: 20041208 Termination date: 20111020 |