CN103135277A - Semi-transparent semi-reflection liquid crystal display (LCD) device and pixel unit thereof - Google Patents
Semi-transparent semi-reflection liquid crystal display (LCD) device and pixel unit thereof Download PDFInfo
- Publication number
- CN103135277A CN103135277A CN2011103732120A CN201110373212A CN103135277A CN 103135277 A CN103135277 A CN 103135277A CN 2011103732120 A CN2011103732120 A CN 2011103732120A CN 201110373212 A CN201110373212 A CN 201110373212A CN 103135277 A CN103135277 A CN 103135277A
- Authority
- CN
- China
- Prior art keywords
- pixel
- sub
- transmission
- reflective
- type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a semi-transparent semi-reflection liquid crystal display (LCD) device and a pixel unit thereof. The pixel unit comprises a first-type subpixel and at least two second-type subpixels. The first-type subpixel surrounds or partially surrounds at least two second-type subpixels. The first-type subpixel is a reflective subpixel or a transmission subpixel. The second-type subpixels are transmission subpixels or reflective subpixels. The area except at least two edges of each second-type subpixel is covered by the first-type subpixel. Due to the fact that transmission and reflection are independently controlled, the pixel unit of the semi-transparent semi-reflection LCD device is capable of better achieving matching of optical properties and simultaneously capable of achieving through a single-box thick structure. Consequently, the pixel unit is simple in structure and simplified in process, increases effective display areas, improves reflectivity and transmissivity, and also improves image contrast.
Description
Technical field
The present invention relates to a kind of semi-transmission semi-reflection LCD, more specifically, relate to the dot structure unit in semi-transmission semi-reflection LCD.
Background technology
Liquid crystal display has low pressure, little power consumption, shows advantages such as containing much information, be easy to colorize, now has been widely used in the display device of the electronic equipments such as robot calculator, electronic notebook, mobile phone, video camera, HDTV.Different from cathode-ray tube (CRT) or plasm display device, himself is not luminous, but reaches the demonstration purpose by the modulation ambient light, and namely relying on to external world, difference reflection and the transmission formation different contrast of light reach the demonstration purpose.
The most basic structure of LCD device is sandwiched liquid crystal layer in the middle of a pair of substrate, is applied to the molecular orientation of the electric field controls liquid crystal layer on liquid crystal layer by two substrates, and then reaches modulation by the purpose of the light intensity of liquid crystal layer.
Difference according to light source used, liquid crystal display has transmission and two kinds of patterns of reflection, the light that sends backlight that transmissive type liquid crystal display utilizes system to carry, backlight need be in normally open, but when display uses and sunlight when enough strong out of doors, the display epigraph can be washed, image can not clearly show, by comparison, reflective liquid-crystal display is modulated by the reflect ambient light source and to it and is shown image, greatly reduced power consumption, its shortcoming is that environment light source must be enough strong.Comprehensive above two kinds of display modes, semi-transparent more than half reflection type liquid crystal display is readable and reduce the power consumption aspect great advantage is all arranged out of doors, its application surface is also more and more extensive, in the electronic products such as mobile phone, digital camera, robot calculator, use is arranged all at present.Compare with reflective LCD device with penetration, semi-transparent design of crossing half-reflection LCD will take into account transmission-type and reflective display performance, manufacture craft is comparatively complicated, how improve simultaneously transmission-type and reflective display performance by more rational design, realize that with relatively simple technique semi-transparent more than half reflective LCD is to need one of major tasks of studying.
For the half-reflection and half-transmission product, reflection characteristic particularly reflectivity is very important characterisitic parameter, and constantly the reflectivity of improving product is the important topic of improving product display characteristic always.Tradition half-reflection and half-transmission product because spread reflection district display area can cause reducing of transmission area display area, thereby affect the reflection characteristic of product, therefore has limitation aspect the raising reflectivity; Simultaneously, for realizing the coupling of transmission, reflection light path, generally adopt the dual-box thick structure, cause complex structure, technology difficulty large.
Fig. 1 is half-reflection and half-transmission dot structure schematic diagram in prior art, wherein each pixel is divided into R, G, three sub-pixel portion of B, and each sub-pixel is divided into reflection, two parts of transmission, it is reflective sub-pixel part 111, 112, 113 and Transmission sub-pixel part 101, 102, 103, each sub-pixel has a TFT device 121, 122, 123, and reflecting electrode connect together (equipotential) thoroughly in sub-pixel, and electric isolation between each sub-pixel, reflection horizon between while three sub-pixels is discontinuous, so all have inactive area 130 between three sub-pixels and around three sub-pixels.Because single box thick structure is difficult to obtain simultaneously higher transmission and reflection efficiency, for realizing the coupling of transmission T-V curve, reflection R-V curve, the mechanism that generally adopts dual-box thick.But in the structure of dual-box thick, the thickness of liquid crystal layer of reflective sub-pixel and Transmission sub-pixel is not identical, the structure relative complex, manufacture craft is relative complex also, and the response time of reflective sub-pixel and Transmission sub-pixel is different, the transmission area optical length, and the reaction time is longer.Simultaneously, inactive area has occupied a large amount of areas, makes display efficiency reduce.
Summary of the invention
In order to solve the aforementioned problems in the prior, the present invention proposes a kind of structure and pixel cell design thereof of semi-transmission semi-reflection LCD.The half-reflection and half-transmission structure of novelty provided by the present invention in the situation that guarantee the transmission display characteristic, increases the useful area of echo area, improves the display effect of reflective-mode, simultaneously simplified structure and technique.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of pixel cell of half-transmission half-reflection type liquid crystal display, wherein, described pixel cell comprises a first kind sub-pixel and at least two Second Type sub-pixels, and described first kind sub-pixel surrounds or part is surrounded described at least two Second Type sub-pixels; Described first kind sub-pixel is that reflective sub-pixel or Transmission sub-pixel, described Second Type sub-pixel are Transmission sub-pixel or reflective sub-pixel.
Further, the zone beyond at least two limits of each Second Type sub-pixel is covered by described first kind sub-pixel.
Further, be continuous between first kind sub-pixel and Second Type sub-pixel.
Further, each sub-pixel is driven by a thin film transistor (TFT) (TFT).
Further, reflective sub-pixel and Transmission sub-pixel do not participate in the image demonstration simultaneously.
Further, described reflective sub-pixel and/or described Transmission sub-pixel are monochrome pixels or colour element.
Further, described reflective sub-pixel and/or described Transmission sub-pixel adopt colorized optical filtering to realize colour; Perhaps described reflective sub-pixel and/or described Transmission sub-pixel adopt an order to drive and realize colour.
Further, described at least two Second Type sub-pixels are three Transmission sub-pixel, are respectively R Transmission sub-pixel, G Transmission sub-pixel, B Transmission sub-pixel.
Further, described at least two Second Type sub-pixels are three reflective sub-pixel, are respectively R reflective sub-pixel, G reflective sub-pixel, B reflective sub-pixel.
Further, described at least two Second Type sub-pixels are four Transmission sub-pixel, are respectively R Transmission sub-pixel, G Transmission sub-pixel, B Transmission sub-pixel, W Transmission sub-pixel.
Further, described at least two Second Type sub-pixels are four reflective sub-pixel, are respectively R reflective sub-pixel, G reflective sub-pixel, B reflective sub-pixel, W reflective sub-pixel.
Further, this pixel cell is single box thick structure.
Further, this pixel cell is the dual-box thick structure.
A kind of pixel unit array of half-transmitting and half-reflecting liquid crystal indicator is comprising by at least two above-mentioned arbitrary described pixel cells.
Further, described pixel unit array is made of three above-mentioned arbitrary described pixel cells, and the first kind sub-pixel in described three pixel cells is respectively R reflective sub-pixel, G reflective sub-pixel, B reflective sub-pixel.
Further, described pixel unit array is made of three above-mentioned arbitrary described pixel cells, and the first kind sub-pixel in described three pixel cells is respectively R Transmission sub-pixel, G Transmission sub-pixel, B Transmission sub-pixel.
A kind of half-transmitting and half-reflecting liquid crystal indicator wherein, comprises at least two above-mentioned arbitrary pixel cells.
Compared with prior art, the present invention can realize better optical characteristics coupling because transmission, reflection are controlled separately, can realize with single box thick structure simultaneously, and dot structure is fairly simple like this, work simplification; Simultaneously, because reflecting electrode or transmission electrode in a pixel cell are continuous, increase viewing area effectively, improved reflectivity; Simultaneously, can make the echo area show when showing transmission black, the transmission contrast improves, and during reflective display, it is black that transmission area shows, can promote the transmission contrast.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples.Need to prove, following examples are only for embodying the preferred implementation of purport of the present invention, but not the restriction that the present invention is carried out.
Fig. 1 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in prior art;
Fig. 2 is the dot structure schematic diagram of the semi-transmission semi-reflection LCD of the first embodiment in the present invention;
Fig. 3 is the sectional view of the first embodiment different parts in the present invention;
Fig. 4 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the second embodiment in the present invention;
Fig. 5 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the 3rd embodiment in the present invention;
Fig. 6 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the 4th embodiment in the present invention;
Fig. 7 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the 5th embodiment in the present invention;
Fig. 8 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the 6th embodiment in the present invention;
Fig. 9 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the 7th embodiment in the present invention;
Figure 10 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the 8th embodiment in the present invention;
Figure 11 is the dot structure schematic diagram of semi-transmission semi-reflection LCD in the 9th embodiment in the present invention;
In figure,
101, the first Transmission sub-pixel; 102, the second Transmission sub-pixel; 103, the 3rd Transmission sub-pixel; 111, the first reflective sub-pixel; 112, the second reflective sub-pixel; 113, the 3rd reflective sub-pixel; 121, the first sub-pixel TFT; 122, the second sub-pixel TFT; 123, the 3rd sub-pixel TFT; 130, inactive area;
200, pixel cell; 201, the first Transmission sub-pixel; 202, the second Transmission sub-pixel; 203, the 3rd Transmission sub-pixel; 204, reflective sub-pixel; 221, a TFT; 222, the 2nd TFT; 223, the 3rd TFT; 224, the 4th TFT; 230, inactive area; 241, the first optical filter; 242, the second optical filter; 243, the 3rd optical filter;
300, pixel cell; 301, the first Transmission sub-pixel; 302, the second Transmission sub-pixel; 303, the 3rd Transmission sub-pixel; 304, reflective sub-pixel; 310, pixel cell; 311, the first Transmission sub-pixel; 312, the second Transmission sub-pixel; 313, the 3rd Transmission sub-pixel; 314, reflective sub-pixel; 320, pixel cell; 321, the first Transmission sub-pixel; 322, the second Transmission sub-pixel; 323, the 3rd Transmission sub-pixel; 324, reflective sub-pixel; 330, inactive area;
400, pixel cell; 401, the first Transmission sub-pixel; 402, the second Transmission sub-pixel; 403, the 3rd Transmission sub-pixel; 404, reflective sub-pixel; 430, inactive area;
500, pixel cell; 501, the first Transmission sub-pixel; 502, the second Transmission sub-pixel; 503, the 3rd Transmission sub-pixel; 504, reflective sub-pixel; 510, pixel cell; 511, the first Transmission sub-pixel; 512, the second Transmission sub-pixel; 513, the 3rd Transmission sub-pixel; 514, reflective sub-pixel;
600, pixel cell; 601, the first Transmission sub-pixel; 602, the second Transmission sub-pixel; 603, the 3rd Transmission sub-pixel; 604, reflective sub-pixel;
700, pixel cell; 701, the first Transmission sub-pixel; 702, the second Transmission sub-pixel; 703, the 3rd Transmission sub-pixel; 704, the 4th Transmission sub-pixel; 705, reflective sub-pixel;
800, pixel cell; 801, the first Transmission sub-pixel; 802, the second Transmission sub-pixel; 803, reflective sub-pixel;
900, pixel cell; 901, the first reflective sub-pixel; 902, the second reflective sub-pixel; 903, Transmission sub-pixel;
1000, pixel cell; 1001, the first reflective sub-pixel; 1002, the second reflective sub-pixel; 1003, the 3rd reflective sub-pixel; 1004, Transmission sub-pixel.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.Be understandable that, specific embodiment described herein only is used for explaining the present invention, but not limitation of the invention.Also need to prove in addition, for convenience of description, only show part related to the present invention in accompanying drawing but not entire infrastructure.
Fig. 2 and Fig. 3 show the first embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.In this first embodiment, pixel cell 200 comprises three Transmission sub-pixel 201,202 and 203 with the demonstration transmission image, and a reflective sub-pixel 204 is to show reflected image.Three Transmission sub-pixel 201,202,203 are in the zone of reflective sub-pixel 204.The array that a plurality of pixel cells 200 are arranged in pie graph 2 (b).
In this application, the implication of Transmission sub-pixel in the reflective sub-pixel zone is: in pixel cell, each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded, in other words, the zone of outside, at least two of each Transmission sub-pixel limits is coated with reflective sub-pixel.
As shown in Figure 3, the AA section is the cross-sectional figure at transmission area position, can find out in figure that transmission, reflecting electrode guarantee insulativity on electricity by insulation course, and not connect mutually between sub-pixel; The BB section is the drawing in side sectional elevation at position, echo area, and being shown as echo area electrode (reflection horizon) is continuous in a pixel cell, and insulate with transmission area.
In this first embodiment, only just be provided with inactive area 230 in the periphery of reflective sub-pixel, reflector space and regional transmission are continuous generally, reduced the occupied area of inactive area (having reduced the inactive area between the adjacent reflective sub-pixel of prior art shown in Figure 1) with respect to prior art, increase effective viewing area, thereby improved display efficiency.
Three Transmission sub-pixel 201,202,203 are rectangle preferably, optionally, three Transmission sub-pixel 201,202,203 can also or have more polygon polygon for pentagon, hexagon, can make different designs to the shape of Transmission sub-pixel according to actual needs.
Transmission sub-pixel 201,202,203, and reflective sub-pixel 204 is controlled by electronic switch (being generally thin film transistor (TFT) TFT) independently, as shown in Figure 2, Transmission sub-pixel 201 is controlled by thin film transistor (TFT) TFT224 by thin film transistor (TFT) TFT223 control, reflective sub-pixel 204 by thin film transistor (TFT) TFT222 control, Transmission sub-pixel 203 by thin film transistor (TFT) TFT221 control, Transmission sub-pixel 202.Transmission sub-pixel 201,202,203, and reflective sub-pixel 204 also has the public electrode (not shown in FIG.) that forms memory capacitance separately.Transmission sub-pixel 201,202,203 is by transmission mode data line drive IC (T-mode data driver, not shown in FIG.) provide data line to drive signal to it, by transmission mode scanning line driving IC(T-mode gate driver, not shown in FIG.) provide scan line driving signal to it.Reflective sub-pixel 204 is by reflective-mode data line drive IC (R-mode data driver, not shown in FIG.) provide data line to drive signal to it, by reflective-mode scanning line driving IC(R-mode gate driver, not shown in FIG.) provide scan line driving signal to it.The relative Rankine-Hugoniot relations of sweep trace, data line between a plurality of pixel cells 200 has been shown in Fig. 2 (b).That in the present invention, data-driven IC and turntable driving IC(comprise transmission mode and reflective-mode) all the same with prior art with annexation and the annexation between type of drive and each thin film transistor (TFT) TFT and corresponding data line and sweep trace and pixel electrode thereof of each sub-pixel, no longer elaborate at this.
Preferably, the mode of operation of this pixel cell 200 is divided into reflective-mode and transmission mode, and transmission mode and reflective-mode can not be worked simultaneously, can switch by a switch, and namely reflective sub-pixel and Transmission sub-pixel do not participate in the image demonstration simultaneously.Under transmission mode, three Transmission sub-pixel 201,202,203 work and Transmission sub-pixel 204 is black attitude; Under reflective-mode, reflective sub-pixel 204 shows image, and Transmission sub-pixel 201,202,203 is black attitude.
Optionally, reflective sub-pixel and the Transmission sub-pixel demonstration image of working simultaneously can be controlled, improving the parameters such as brightness of image, but difficulty and the cost of driving, control will be improved undoubtedly.
Control respectively due to Transmission sub-pixel and reflective sub-pixel, it can arrange different voltage, so the liquid crystal pixel cells in the present embodiment 200 can adopt single box thick structure, reduces the complicacy of technique.
Optionally, the liquid crystal pixel cells in the present embodiment also can adopt the dual-box thick structure, to satisfy various design requirements.
In order to obtain coloured image under transmission mode, three Transmission sub-pixel 201,202 and 203 are corresponding three color sub-pixel that are used for color display respectively.This color sub-pixel has filter layer (shown in Fig. 3) on the infrabasal plate (not shown) of liquid crystal display or upper substrate, the first optical filter, the second optical filter, the 3rd optical filter send the light that the backlight after panel of LCD is launched, and the composition beyond the desired color of filtering.In the present embodiment, this color sub-pixel is respectively R, G, B sub-pixel.Optionally, color sub-pixel also can be the color sub-pixel of R, Y, B sub-pixel or other color.
In order to show reflected image, reflective sub-pixel 204 is used.Reflective sub-pixel has been provided with a reflecting electrode at the inside surface of infrabasal plate, in order to incident light is reflected back the person's of inspecting eyes.This reflecting electrode is made of the metal material of tool highly reflective, for example aluminium, aluminium alloy, silver etc., or consisted of by the dielectric material of tool highly reflective, as the multilayer dielectric film of tool highly reflective.This reflective sub-pixel 204 does not have colour filter, can show the reflected image of black and white.
In this embodiment, under the black white image resolution of reflective-mode and transmission mode, the resolution of coloured image is identical.Exemplary, under the black white image resolution of reflective-mode and transmission mode, the resolution of coloured image is 960*480 or 320*240.
Fig. 4 shows the second embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In a second embodiment, pixel cell 300 comprises three Transmission sub-pixel 301,302 and 303 with the demonstration transmission image, and a reflective sub-pixel 304 is to show reflected image.Pixel cell 310 comprises three Transmission sub-pixel 311,312 and 313 with the demonstration transmission image, and a reflective sub-pixel 314 is to show reflected image.Pixel cell 320 comprises three Transmission sub-pixel 321,322 and 323 with the demonstration transmission image, and a reflective sub-pixel 324 is to show reflected image.Repeat no more with structure identical in the first embodiment.
Have inactive area 330 between three pixel cells 300,310,320, the three is discontinuous.Each pixel cell inside only has inactive area 330 in the outside of each sub-pixel.
In the zone of reflective sub-pixel 304, each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded 301,302,303 for three Transmission sub-pixel.In the zone of reflective sub-pixel 314, each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded 311,312,313 for three Transmission sub-pixel.In the zone of reflective sub-pixel 324, each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded 321,322,323 for three Transmission sub-pixel.Three adjacent pixel cells 300,310,320 form the pixel unit array groups.
Transmission sub-pixel 301,302,303,311,312,313,321,322,323 similar to the first embodiment is the RGB sub-pixel.Exemplary, Transmission sub-pixel 301,311,321 is the R Transmission sub-pixel, and Transmission sub-pixel 302,312,322 is the G Transmission sub-pixel, and Transmission sub-pixel 303,313,323 is the B Transmission sub-pixel.
In reflective sub-pixel 304,314,324, tool is provided with optical filter, and is exemplary, and reflective sub-pixel 304 is set to the R reflective sub-pixel, and reflective sub-pixel 314 is set to the G reflective sub-pixel, and reflective sub-pixel 324 is set to the B reflective sub-pixel.
Preferably, the mode of operation of this pixel cell 300,310,320 pel arrays that consist of is divided into reflective-mode and transmission mode, and reflective sub-pixel and Transmission sub-pixel do not participate in simultaneously image and show.
Under transmission mode, the Transmission sub-pixel 301,302,303,311,312,313,321,322 of each pixel cell 300,310,320 inside, 323 forms the colored transmission image of first resolution, and reflective sub-pixel 304,314,324 all is shown as black attitude.
Under reflective-mode, reflective sub-pixel 304,314 in three pixel cells, 324 consists of the rgb pixel groups, thereby can form the colour reflective image of second resolution, Transmission sub-pixel 301,302,303,311,312,313,321,322,323 is shown as black attitude.Exemplary, reflective sub-pixel 304 is the R reflective sub-pixel, and reflective sub-pixel 314 is the G reflective sub-pixel, and reflective sub-pixel 324 is the B reflective sub-pixel.
In this embodiment, the first resolution of transmission mode is not identical with the second resolution of reflective-mode.Exemplary, the resolution of transmission mode can be 960*480, the resolution of reflective-mode is 320*480.
Fig. 5 shows the 3rd embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In the 3rd embodiment, pixel cell 400 comprises three Transmission sub-pixel 401,402 and 403 with the demonstration transmission image, and a reflective sub-pixel 404 is to show reflected image.Three Transmission sub-pixel 401,402,403 are in the zone of reflective sub-pixel 404.
In this embodiment, pixel cell 400 is operated under transmission mode and reflective-mode.
Under transmission mode, three Transmission sub-pixel 401,402 and 403 are respectively R, G, B Transmission sub-pixel, form coloured image, and reflective sub-pixel 404 is black attitude.
Under reflective-mode, reflective sub-pixel 404 color displays, three Transmission sub-pixel 401,402 and 403 are black attitude.In order to form coloured image, this reflective sub-pixel adopts an order to drive.In order to make reflective sub-pixel 404 can show complete colored transmission shadow sample, the light of at least three different main colors must pass through reflective sub-pixel 404 in proper order in a picture cycle, manifest each time central one main color of light in picture.When the enough height of frame frequency (usually above 30 pictures/second), the person of inspecting can see complete coloured image.This is so-called field sequence type formation method.Because reflective sub-pixel does not have the direct light that penetrates from back light unit, preposition back light unit can be set on upper substrate realize.
In this embodiment, the first resolution of transmission mode is identical with the second resolution of reflective-mode.Exemplary, the resolution of transmission mode is 320*480, the resolution of reflective-mode is also 320*480.
Fig. 6 shows the 4th embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In the 4th embodiment, pixel cell 500 comprises three Transmission sub-pixel 501,502 and 503 with the demonstration transmission image, and a reflective sub-pixel 504 is to show reflected image.Three Transmission sub-pixel 501,502,503 are in the zone of reflective sub-pixel 504.
The implication of Transmission sub-pixel in the reflective sub-pixel zone is: each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded, and in other words, the zone of the outside, at least two limits of each Transmission sub-pixel is coated with reflective sub-pixel.
As shown in Figure 6, three reflective sub-pixel 501,502 and 503 position can only be transmitted sub-pixel and partly surround, and that is to say, the zone beyond at least two limits of reflective sub-pixel is transmitted sub-pixel 504 and covers.
This pixel cell 500 can be operated under reflective-mode, also can be operated under transmission mode.
Need to prove, under reflective-mode, Transmission sub-pixel is black attitude, and under transmission mode, reflective sub-pixel is black attitude, and the brightness of image under two kinds of patterns may be different, in order to regulate two kinds of brightness of image under pattern, can the accommodation reflex sub-pixel and the area accounting of Transmission sub-pixel.
An example as the area of regulating two sub pixels, pixel cell 500 can be replaced to pixel cell 510, this pixel cell 510 comprises three Transmission sub-pixel 511,512 and 513 with the demonstration transmission image, and a reflective sub-pixel 514 is to show reflected image.Three Transmission sub-pixel 511,512,513 are in the zone of reflective sub-pixel 514.
Fig. 7 shows the 5th embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In the 5th embodiment, pixel cell 600 comprises three Transmission sub-pixel 601,602 and 603 with the demonstration transmission image, and a reflective sub-pixel 604 is to show reflected image.Three Transmission sub-pixel 601,602,603 are in the zone of reflective sub-pixel 604.The implication of Transmission sub-pixel in the reflective sub-pixel zone is: each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded, and in other words, the zone of the outside, at least two limits of each Transmission sub-pixel is coated with reflective sub-pixel.
This pixel cell 600 can be operated under reflective-mode, also can be operated under transmission mode.
With difference in previous embodiment be, three Transmission sub-pixel no longer adopt expensive colored filter, but adopt an order type of drive and an order drives structure.The single backlight of changeable colour is set respectively below three Transmission sub-pixel 601,602 and 603, three R, G, B backlight perhaps are set below each Transmission sub-pixel.Field sequence type drives the utilization factor that can well improve backlight, improves the brightness of display, reduces power consumption, has also improved resolution simultaneously.
Optionally, this reflective sub-pixel 604 also can adopt colored filter to form the RGB reflected image as in the second embodiment, also can adopt an order to drive as in the 3rd embodiment and form coloured image.
Under transmission mode, three Transmission sub-pixel 601,602,603 color displays, reflective sub-pixel 604 is black attitude; Under reflective-mode, reflective sub-pixel 604 shows black, and three Transmission sub-pixel 601,602,603 are black attitude.
In this embodiment, the color image resolution of reflective-mode is different from the black white image resolution of transmission mode.Exemplary, the color image resolution of transmission mode is 960*480, the black white image resolution of reflective-mode is 320*480.
Fig. 8 shows the 6th embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In the 6th embodiment, pixel cell 700 comprises four Transmission sub-pixel 701,702,703,704 with the demonstration transmission image, and a reflective sub-pixel 705 is to show reflected image.Four Transmission sub-pixel 701,702,703,704 are in the zone of reflective sub-pixel 704.The implication of Transmission sub-pixel in the reflective sub-pixel zone is: each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded, and in other words, the zone of the outside, at least two limits of each Transmission sub-pixel is coated with reflective sub-pixel.
Transmission sub-pixel 701,702,703,704, and reflective sub-pixel 705 is controlled by electronic switch (being generally thin film transistor switch TFT) independently.Similar with the first embodiment, reflective sub-pixel, Transmission sub-pixel provide the driving signal by different drive IC respectively.
Preferably, the mode of operation of this pixel cell 700 is divided into reflective-mode and transmission mode, under transmission mode, and four Transmission sub-pixel 701,702,703,704 work and reflective sub-pixel 705 is black attitude; Under reflective-mode, reflective sub-pixel 705 shows image, and Transmission sub-pixel 701,702,703,704 is black attitude.
Optionally, reflective sub-pixel can be controlled and Transmission sub-pixel is worked simultaneously, to show image.
Under transmission mode, four Transmission sub-pixel 701,702,703 and 704 color displays, corresponding four main color sub-pixel that are used for the display color reflected image respectively.This color sub-pixel has filter layer (shown in figure) on the infrabasal plate (not shown) of liquid crystal display or upper substrate, send the light that the backlight after panel of LCD is launched.In the present embodiment, this color sub-pixel is respectively R, G, B, W sub-pixel.Optionally, color sub-pixel also can be the color sub-pixel of R, G, B, Y sub-pixel or other color.In the present embodiment, this color sub-pixel R, G, B, W sub-pixel are positioned at same delegation, and optional, color sub-pixel R, G, B, W sub-pixel also can be positioned at two adjacent row, wherein two sub-pixels are positioned at wherein delegation, and two other sub-pixel is positioned at another adjacent row.
In order to show reflected image, reflective sub-pixel 705 is used.This reflective sub-pixel 705 can show the reflected image of black and white.Optionally, this reflective sub-pixel 705 also can adopt colored filter to form the RGB reflected image as in the second embodiment, also can adopt an order to drive as in the 3rd embodiment and form coloured image.
In this embodiment, under the black white image resolution of reflective-mode and transmission mode, the resolution of coloured image is identical.Exemplary, under the black white image resolution of reflective-mode and transmission mode, the resolution of coloured image is 960*480 or 320*240.
Fig. 9 shows the 7th embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In the 7th embodiment, pixel cell 800 comprises two Transmission sub-pixel 801,802 with the demonstration transmission image, and a reflective sub-pixel 803 is to show reflected image.Two Transmission sub-pixel 801,802 are in the zone of reflective sub-pixel 803.The implication of Transmission sub-pixel in the reflective sub-pixel zone is: each Transmission sub-pixel is reflected that sub-pixel surrounds or part is surrounded, and in other words, the zone of the outside, at least two limits of each Transmission sub-pixel is coated with reflective sub-pixel.
Transmission sub-pixel 801,802, and reflective sub-pixel 803 drives by electronic switch independently, this electronic switch (being generally thin film transistor switch TFT) is controlled.Similar with the first embodiment, reflective sub-pixel, Transmission sub-pixel provide the driving signal by different drive IC respectively.
Preferably, the mode of operation of this pixel cell 800 is divided into reflective-mode and transmission mode, under transmission mode, and two Transmission sub-pixel 801,802 work and reflective sub-pixel 803 is black attitude; Under reflective-mode, reflective sub-pixel 803 shows image, and Transmission sub-pixel 801,802 is black attitude.
Optionally, reflective sub-pixel can be controlled and Transmission sub-pixel is worked simultaneously, to show image.
Under transmission mode, 2 Transmission sub-pixel 801,802 color displays.This Transmission sub-pixel sends the light that the backlight after panel of LCD is launched.In the present embodiment, the structure that this Transmission sub-pixel adopts an order to drive arranges the backlight that conversion can be launched R, G, three kinds of light of B successively on infrabasal plate, avoided expensive colored filter and improved resolution.Reflective sub-pixel 803 is black attitude.
Under reflective-mode, reflective sub-pixel 803 color displays.The structure that this Transmission sub-pixel also adopts an order to drive arranges the preposition backlight that conversion can be launched R, G, three kinds of light of B successively on upper substrate.Two Transmission sub-pixel 803 are black attitude.
In this embodiment, under transmission mode, the first resolution of coloured image is different from the second resolution of reflective-mode coloured image.Exemplary, under transmission mode, the first resolution of coloured image is 960*480, the second resolution of reflective-mode coloured image is 480*480.
Optionally, two Transmission sub-pixel, a reflective sub-pixel also can adopt colored filter to form R, G, B structure, and with the second embodiment similarly, be combined to form the pixel unit array group with adjacent two other pixel cell.
Figure 10 shows the 8th embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In the 8th embodiment, pixel cell 900 comprises two reflective sub-pixel 901,902 with the demonstration reflected image, and a Transmission sub-pixel 903 is to show transmission image.Two reflective sub-pixel 901,902 are in the zone of Transmission sub-pixel 903.The implication of reflective sub-pixel in the Transmission sub-pixel zone is: each reflective sub-pixel is transmitted that sub-pixel surrounds or part is surrounded, and in other words, the zone of the outside, at least two limits of each reflective sub-pixel is coated with Transmission sub-pixel.
Reflective sub-pixel 901,802, and Transmission sub-pixel 903 is controlled by electronic switch institute (being generally thin film transistor switch TFT) independently.Similar with the first embodiment, reflective sub-pixel, Transmission sub-pixel provide the driving signal by different drive IC respectively.
Preferably, the mode of operation of this pixel cell 900 is divided into reflective-mode and transmission mode, under transmission mode, and two Transmission sub-pixel 801,802 work and reflective sub-pixel 803 is black attitude; Under reflective-mode, reflective sub-pixel 803 shows image, and Transmission sub-pixel 801,802 is black attitude.
Optionally, reflective sub-pixel can be controlled and Transmission sub-pixel is worked simultaneously, to show image.
Figure 11 shows the 9th embodiment of semi-transmission semi-reflection LCD pixel cell structure provided by the present invention.
In the 9th embodiment, pixel cell 1000 comprises three reflective sub-pixel 1001,1002,1003 with the demonstration reflected image, and a Transmission sub-pixel 1004 is to show transmission image.Two reflective sub-pixel 1001,1002 are in the zone of Transmission sub-pixel 1003.Each reflective sub-pixel is transmitted sub-pixel and surrounds or partly surround, and in other words, the zone of the outside, at least two limits of each reflective sub-pixel is coated with Transmission sub-pixel.
In the 9th embodiment, only just be provided with inactive area at the peripheral of Transmission sub-pixel, reflector space and regional transmission are continuous generally, have reduced the occupied area of inactive area with respect to prior art, increase effective viewing area, thereby improved display efficiency.
Preferably, the mode of operation of this pixel cell 1000 is divided into reflective-mode and transmission mode, and reflective sub-pixel and Transmission sub-pixel do not participate in simultaneously image and show.Under transmission mode, Transmission sub-pixel 1004 work and reflective sub-pixel 1001,1002,1003 is black attitude; Under reflective-mode, reflective sub-pixel 1001,1002,1003 shows image, and Transmission sub-pixel 1004 is black attitude.
Optionally, reflective sub-pixel and the Transmission sub-pixel demonstration image of working simultaneously can be controlled, improving the parameters such as brightness of image, but difficulty and the cost of driving, control will be improved undoubtedly.
Control respectively due to Transmission sub-pixel and reflective sub-pixel, it can arrange different voltage, so the liquid crystal pixel cells in the present embodiment 1000 can adopt single box thick structure, reduces the complicacy of processing.
Optionally, the liquid crystal pixel cells in the present embodiment also can adopt the dual-box thick structure, to satisfy various design requirements.
In this embodiment, under the black white image resolution of reflective-mode and transmission mode, the resolution of coloured image is identical.Exemplary, under the black white image resolution of reflective-mode and transmission mode, the resolution of coloured image is 960*480 or 320*240.
Description according to above-mentioned several embodiment, those skilled in the art easily expect, the Transmission sub-pixel of other quantity, the combination of reflective sub-pixel can also be set, for example comprise in five above Transmission sub-pixel, a Transmission sub-pixel in reflective sub-pixel and comprise four above reflective sub-pixel etc. technical scheme, and select corresponding type of drive according to the needs of design.Therefore be only the explanation of doing for the preferred embodiments of the present invention and know-why thereof more than; and be not the restriction that technology contents of the present invention is carried out; anyly be familiar with those skilled in the art in technical scope disclosed in this invention; the variation of easily being expected or replacement all should be encompassed in protection scope of the present invention.
Claims (16)
1. the pixel cell of a half-transmission half-reflection type liquid crystal display, wherein, described pixel cell comprises a first kind sub-pixel and at least two Second Type sub-pixels, and described first kind sub-pixel surrounds or part is surrounded described at least two Second Type sub-pixels; Described first kind sub-pixel is that reflective sub-pixel or Transmission sub-pixel, described Second Type sub-pixel are Transmission sub-pixel or reflective sub-pixel.
2. pixel cell according to claim 1, is characterized in that, the zone beyond at least two limits of each Second Type sub-pixel is covered by described first kind sub-pixel.
3. pixel cell according to claim 1, is characterized in that, and is continuous between first kind sub-pixel and Second Type sub-pixel.
4. pixel cell according to claim 1, is characterized in that, each sub-pixel is controlled by a thin film transistor (TFT) (TFT).
5. pixel cell according to claim 1, is characterized in that, reflective sub-pixel and Transmission sub-pixel do not participate in simultaneously image and show.
6. pixel cell according to claim 1, is characterized in that, described reflective sub-pixel and/or described Transmission sub-pixel are monochrome pixels or colour element.
7. pixel cell according to claim 1, is characterized in that, it is colored that described reflective sub-pixel and/or described Transmission sub-pixel adopt colorized optical filtering to realize; Perhaps described reflective sub-pixel and/or described Transmission sub-pixel adopt an order to drive and realize colour.
8. one of according to claim 1-7 described pixel cells, is characterized in that, described at least two Second Type sub-pixels are three Transmission sub-pixel, are respectively R Transmission sub-pixel, G Transmission sub-pixel, B Transmission sub-pixel.
9. one of according to claim 1-7 described pixel cells, is characterized in that, described at least two Second Type sub-pixels are three reflective sub-pixel, are respectively R reflective sub-pixel, G reflective sub-pixel, B reflective sub-pixel.
10. one of according to claim 1-7 described pixel cells, is characterized in that, described at least two Second Type sub-pixels are four Transmission sub-pixel, are respectively R Transmission sub-pixel, G Transmission sub-pixel, B Transmission sub-pixel, W Transmission sub-pixel.
11. one of according to claim 1-7 described pixel cells is characterized in that described at least two Second Type sub-pixels are four reflective sub-pixel, are respectively R reflective sub-pixel, G reflective sub-pixel, B reflective sub-pixel, W reflective sub-pixel.
12. pixel cell according to claim 1 is characterized in that, this pixel cell is single box thick structure.
13. the pixel unit array of a half-transmitting and half-reflecting liquid crystal indicator is comprising by arbitrary described pixel cell at least two claim 1-12.
14. pixel unit array according to claim 13, it is characterized in that, described pixel unit array by three as claimed in claim 8 or 9 pixel cell consist of, the first kind sub-pixel in described three pixel cells is respectively R reflective sub-pixel, G reflective sub-pixel, B reflective sub-pixel.
15. pixel unit array according to claim 13, it is characterized in that, described pixel unit array by three as claimed in claim 8 or 9 pixel cell consist of, the first kind sub-pixel in described three pixel cells is respectively R Transmission sub-pixel, G Transmission sub-pixel, B Transmission sub-pixel.
16. a half-transmitting and half-reflecting liquid crystal indicator wherein, comprises at least two as arbitrary described pixel cell in claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110373212.0A CN103135277B (en) | 2011-11-22 | 2011-11-22 | A kind of semitransparent semi-reflective liquid crystal display device and pixel cell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110373212.0A CN103135277B (en) | 2011-11-22 | 2011-11-22 | A kind of semitransparent semi-reflective liquid crystal display device and pixel cell thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103135277A true CN103135277A (en) | 2013-06-05 |
| CN103135277B CN103135277B (en) | 2016-06-29 |
Family
ID=48495334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110373212.0A Active CN103135277B (en) | 2011-11-22 | 2011-11-22 | A kind of semitransparent semi-reflective liquid crystal display device and pixel cell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103135277B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412798A (en) * | 2019-06-17 | 2019-11-05 | 上海天马微电子有限公司 | Display panel and display device |
| CN111092110A (en) * | 2019-07-05 | 2020-05-01 | 友达光电股份有限公司 | Pixel structure and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567038A (en) * | 2003-06-11 | 2005-01-19 | 统宝光电股份有限公司 | Half penetrating and half reflecting LCD |
| CN1707337A (en) * | 2004-06-10 | 2005-12-14 | 阿尔卑斯电气株式会社 | Field-sequential-OCB-mode transflective liquid crystal display device |
| KR20060116077A (en) * | 2005-05-09 | 2006-11-14 | 엘지.필립스 엘시디 주식회사 | Trans-flective type liquid crystal display device and method for fabricating the same |
| CN1869772A (en) * | 2005-05-23 | 2006-11-29 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device |
| CN101051128A (en) * | 2006-04-06 | 2007-10-10 | 胜华科技股份有限公司 | Haft-transmitting type liquid crystal display, its pixel unit and driving method for pixel unit |
| CN101226291A (en) * | 2007-01-15 | 2008-07-23 | 胜华科技股份有限公司 | Field sequence LCD and drive method thereof |
-
2011
- 2011-11-22 CN CN201110373212.0A patent/CN103135277B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567038A (en) * | 2003-06-11 | 2005-01-19 | 统宝光电股份有限公司 | Half penetrating and half reflecting LCD |
| CN1707337A (en) * | 2004-06-10 | 2005-12-14 | 阿尔卑斯电气株式会社 | Field-sequential-OCB-mode transflective liquid crystal display device |
| KR20060116077A (en) * | 2005-05-09 | 2006-11-14 | 엘지.필립스 엘시디 주식회사 | Trans-flective type liquid crystal display device and method for fabricating the same |
| CN1869772A (en) * | 2005-05-23 | 2006-11-29 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device |
| CN101051128A (en) * | 2006-04-06 | 2007-10-10 | 胜华科技股份有限公司 | Haft-transmitting type liquid crystal display, its pixel unit and driving method for pixel unit |
| CN101226291A (en) * | 2007-01-15 | 2008-07-23 | 胜华科技股份有限公司 | Field sequence LCD and drive method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412798A (en) * | 2019-06-17 | 2019-11-05 | 上海天马微电子有限公司 | Display panel and display device |
| CN110412798B (en) * | 2019-06-17 | 2022-08-02 | 上海天马微电子有限公司 | Display panel and display device |
| CN111092110A (en) * | 2019-07-05 | 2020-05-01 | 友达光电股份有限公司 | Pixel structure and display device |
| CN111092110B (en) * | 2019-07-05 | 2022-05-10 | 友达光电股份有限公司 | Pixel structure and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103135277B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10025145B2 (en) | Display device and electronic apparatus | |
| CN103185979B (en) | The driving method of display panel, display device and display device | |
| CN102819151B (en) | Semitransmissive display device, its driving method and electronic system | |
| CN106066553B (en) | A kind of display panel, its driving method and display device | |
| CN101055386B (en) | Systems for displaying images | |
| CN106707627A (en) | Array substrate, display panel and display device | |
| JP2006234849A (en) | Liquid crystal display device, driving method used for the liquid crystal display device | |
| CN101165564B (en) | Semi-transmission semi-reflection liquid crystal display device | |
| CN214751220U (en) | Display panel and display device | |
| CN104965348B (en) | A kind of display panel and electronic equipment | |
| US20230178043A1 (en) | Display device and driving method thereof | |
| CN102116975B (en) | System for displaying images | |
| CN105093665A (en) | Semi-transmitting and semi-reflecting display panel and semi-transmitting and semi-reflecting display device | |
| WO2018148986A1 (en) | Backlight using graphene, and field-sequential color liquid crystal display and driving method therefor | |
| JP2008152244A (en) | Display device | |
| CN204945560U (en) | Semi-transparent semi-reflecting display panel and semi-transparent semi-reflecting display device | |
| KR20070005506A (en) | Liquid crystal display and electronic apparatus | |
| CN110192147A (en) | Liquid crystal display device | |
| CN102998834B (en) | Semi-reflective semi-permeable liquid crystal display and image display method thereof | |
| CN102346996B (en) | Display apparatus and driving circuit thereof | |
| CN102629048A (en) | Liquid crystal display panel and driving method thereof | |
| CN103135277A (en) | Semi-transparent semi-reflection liquid crystal display (LCD) device and pixel unit thereof | |
| KR100434407B1 (en) | A trans-reflective field-sequential liquid crystal display device | |
| TW201022780A (en) | Transflective display with white tuning | |
| KR101261339B1 (en) | Liquid Crystal Display Device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |