CN101887183A - Liquid crystal indicator - Google Patents
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- CN101887183A CN101887183A CN2010101811123A CN201010181112A CN101887183A CN 101887183 A CN101887183 A CN 101887183A CN 2010101811123 A CN2010101811123 A CN 2010101811123A CN 201010181112 A CN201010181112 A CN 201010181112A CN 101887183 A CN101887183 A CN 101887183A
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Abstract
The invention provides liquid crystal indicator, it need not to use polychromatic source can not have colour break-up FS driving and can carry out the colour demonstration.Liquid crystal indicator has: liquid crystal display cells, and it comprises the 1st and the 2nd section display part; Backlight assembly, it comprises the 1st light source and the 2nd light source at least, the 1st light source is disposed at the below or the outside, side of the 1st section display part, radiate the light of the 1st color, the 2nd light source is disposed at the below of the 2nd section display part, radiate the light of the 2nd color, backlight assembly makes the light of the 1st, the 2nd color incide the 1st, the 2nd section display part respectively; And drive unit, it is divided into 2 subframes with 1 frame, carrying out FS drives, this drive unit is controlled liquid crystal display cells and backlight assembly as follows: at per 1 frame, in a subframe, make the 1st section display part carry out bright demonstration, and light the 1st light source, in another subframe, make the 2nd section display part carry out bright demonstration, and light the 2nd light source.
Description
Technical field
The present invention relates to carry out the colored liquid crystal indicator that shows.
Background technology
In the display part of in-vehicle information display device and audiovisual (AV) equipment etc., used can the section of carrying out (segment) to show maybe and can the section of carrying out to show and dot matrix demonstration both sides' liquid crystal indicator.Carry out the liquid crystal indicator that a preface (FS:field sequential) drives as realizing one of colored liquid crystal indicator that shows by the section of making display part, existing.In the liquid crystal indicator that FS drives, for example, use to comprise the multicolor backlight that can carry out luminous multi-color LED (LED) light source of RGB (RGB), and switch lighting color successively in chronological order, carry out colour thus and show.
The concrete example of existing FS driving method is described with reference to Fig. 7.Fig. 7 illustrates the input signal of each section and the sequential chart of backlight lightening state.As liquid crystal display cells, be assumed to be normal black (normally black) type liquid crystal display cells.
In 1 frame that shows 1 image, 3 subframe SB1～SB3 that light by R, G, B respectively backlight have been set as chronomere.For example, the length of 1 frame is 16.7ms, and the length of each subframe is for equally spaced carrying out 1 frame the 5.57ms behind 3 branches such as grade.
In addition, in general, liquid crystal display cells is backlight at the low-response that applies voltage at the response ratio that applies voltage, so, before liquid crystal display cells is made to a certain degree response, require to exist the blank time that does not make backlight lightening.
After the switching of each subframe, and then be provided with blank time B.Playing from blank time B till the finish time of each subframe, is the backlight lightening time L that makes the backlight lightening of the color corresponding with subframe.
If the speed that can't discern with naked eyes (about 16.7ms/ frame for example, promptly approximately 5.57ms/ frame) drives the subframe action, then can realize the inhibition that conforms to target the colour of flicker show.In example shown in Figure 7, section 1 is yellow demonstration by the color mixture that naked eyes are identified as R and G, and section 2 is the demonstration of magenta by the color mixture that naked eyes are identified as R and B, and a section n is identified as the only demonstration of the green of G by naked eyes.
But, for above-mentioned FS driving method (in order to distinguish this FS driving method and no colour break-up FS driving method described later, this FS driving method is called common FS driving method), particularly under situation darker around the observer, when observer's sight line has been left display element and element self when being applied in vibration (for example in the environment in automobile), occur sometimes that naked eyes image that can't discern, each subframe under the common state takes place to separate and the phenomenon that is called colour break-up (color break) that is observed.Consider this phenomenon desirable show state of can not saying so from people's psychological factor.The colour break-up phenomenon particularly can clearly manifest in white display part, so the some light tone of colour mixture is many more, is easy to generate the colour break-up phenomenon more.
The present inventor has proposed to eliminate the FS driving method (no colour break-up FS driving method) (with reference to patent documentation 1) of colour break-up phenomenon.
The basic thought of this driving method is: at per 1 frame, only in 1 subframe, make each section display part carry out bright demonstration, and light the backlight of the demonstration look corresponding with it, thus, be not to use the color mixture of a plurality of subframes, can not produce the colour break-up phenomenon.
The concrete example of colourless random FS driving method is described with reference to Fig. 8.Fig. 8 illustrates the input signal of each section and the sequential chart of backlight lightening state.As liquid crystal display cells, be assumed to be the common-black type liquid crystal display cells.
In this embodiment, 1 frame is 16.7ms, and has set equally spaced 3 subframes.For the backlight luminescence look, in the 1st subframe white, be orange in the 2nd subframe, be blue in the 3rd subframe.In this driving method, establishing number of sub frames is M, and the demonstration look that then can show in 1 frame is a M+1 color behind the adding black in illuminant colour M.In addition, the interval of each subframe can change according to illuminant colour backlight.That is, subframe also can be moved with unequal interval ground.
In this embodiment, carry out white and show in section 1, carry out orange demonstration in section n, section 2 is shown state (black display) for showing slinkingly.About backlight lighting opportunity, same with common FS driving method, after subframe is switched,, be provided with the blank time B of about 3ms in order to wait for the electricity optic response of liquid crystal display cells.To play from blank time B and be made as the backlight lightening time L backlight that lights the color corresponding till subframe finishes with subframe.
By carrying out this action, can realize that the colour that does not have flicker that conforms to target in appearance shows in the mode of no colour break-up.
Drive in (common FS drives and do not have colour break-up FS and drives) at above-mentioned such FS, used the polychromatic source that changes the some light tone at each subframe.Polychromatic source comprises in order to generate a plurality of colors lights for example light-emitting component of a plurality of primary colors.Thus, for example cause the usage quantity of light-emitting component to increase, the drive IC number of terminals increases.
No. 3894323 communique of [patent documentation 1] Japan special permission
Summary of the invention
One object of the present invention is, provides a kind of and need not to use polychromatic source can not have the field preface driving of colour break-up and can carry out the colored liquid crystal indicator that shows.
According to a viewpoint of the present invention, a kind of liquid crystal indicator is provided, this liquid crystal indicator has: liquid crystal display cells, it comprises the 1st section display part and the 2nd section display part in the viewing area; Backlight assembly, it comprises the 1st light source and the 2nd light source at least, the 1st light source is configured in the display surface normal direction below of described the 1st section display part or the outside, side of described the 1st section display part, radiate the light of the 1st color, the 2nd light source is configured in the below of described the 2nd section display part and is not configured in the below of described the 1st section display part, radiate the light of 2nd color different with described the 1st color, this backlight assembly makes the light of the 1st color incide the 1st section display part, and makes the light of the 2nd color incide the 2nd section display part; And drive unit, it will be divided into 2 subframes as 1 frame that shows chronomere, carrying out a preface drives, this drive unit is controlled described liquid crystal display cells and described backlight assembly as follows, described the 1st section display part and described the 2nd section display part are shown with described the 1st color and described the 2nd color respectively, described mode is: at per 1 frame, in a subframe, make described the 1st section display part carry out bright demonstration, and light described the 1st light source, in another subframe, make described the 2nd section display part carry out bright demonstration, and light described the 2nd light source.
The 1st light source of the 1st different color of allocation position and the 2nd light source of the 2nd color in the viewing area, have been used, carry out 1 frame is divided into the field preface driving of 2 subframes, in a subframe, the 1st section display part shown with the 1st color, in another subframe, the 2nd section display part shown, thus with the 2nd color, do not need polychromatic source, realized to prevent the liquid crystal indicator of the 1st color with the colored display action that mixes of the 2nd color.
Description of drawings
Fig. 1 is the approximate three-dimensional map of the liquid crystal indicator of the 1st～the 3rd embodiment of the present invention.
Fig. 2 is the general view of display pattern that the liquid crystal display cells of the 1st～the 3rd embodiment is shown.
Fig. 3 is the general view of back light unit that the liquid crystal indicator of the 1st embodiment is shown.
The sequential chart that field preface when Fig. 4 A and Fig. 4 B are respectively the color display modes of liquid crystal indicator of the 1st embodiment and variation thereof drives.
Fig. 5 is the summary section of back light unit that the liquid crystal indicator of the 2nd embodiment is shown.
Fig. 6 is the general view of back light unit that the liquid crystal indicator of the 3rd embodiment is shown.
Fig. 7 is the sequential chart that the example of common field preface driving is shown.
Fig. 8 is the sequential chart that the example that the no colour break-up field preface of comparative example drives is shown.
Label declaration
1,4: Polarizer; 2: the viewing angle compensation plate; 3: liquid crystal cells; 10: liquid crystal display cells; 5: back light unit; 6: drive unit; 21～26: the section display part; 31: scatter plate; 32W: white light source; 32Y: yellow light sources; 32R: red light source; 33Y: yellow irradiation area; 33R: red irradiation area.
Embodiment
At first, the common structure to the 1st of embodiments of the invention～the 3rd liquid crystal indicator describes.
Fig. 1 is the approximate three-dimensional map of the liquid crystal indicator of these embodiment.With between the Polarizer 1,4 that disposes according to crossed nicols (crossed nicol) mode each other, clip the mode of vertical alignment-type liquid crystal unit 3, formed vertical alignment-type liquid crystal display device 10.Vertical alignment-type liquid crystal unit 3 comprises: be formed with on the inside surface electrode pattern that can realize the demonstration expected on lower glass substrate; And be sandwiched in liquid crystal layer between the lower glass substrate.
Liquid crystal molecule in the liquid crystal layer when not applying voltage, with the direction of glass baseplate surface approximate vertical up and down on be orientated, and apply by voltage, liquid crystal molecule falls down from vertical direction.Vertical alignment-type liquid crystal display device 10 is to show slinkingly the common-black type display element that shows and carry out bright demonstration when applying voltage not applying the voltage added-time.
As required, can at least one side in vertical alignment-type liquid crystal unit 3 and in up and down between the Polarizer 1,4 dispose the viewing angle compensation plate.In this embodiment, between vertical alignment-type liquid crystal unit 3 and upside Polarizer 1, disposed viewing angle compensation plate 2.Below downside Polarizer 4, disposed back light unit 5 (perhaps 5A, 5B).
The illuminating state of the show state of 6 pairs of liquid crystal display cells 10 of drive unit and back light unit 5 (5A, 5B) carries out synchro control, carries out a preface and drives.
As the response characteristic of the liquid crystal cells 3 of embodiment, carry out following supposition.Show that from showing slinkingly the rising response speed that state switches to bright show state is approximately 2ms in response to voltage applies beginning, and till being applied to light transmission and beginning to rise from voltage, have the time delay of about 1.4ms.And, apply in response to voltage and to finish and switch to from bright show state and to show slinkingly the decline response speed of showing state and be approximately 2.5ms.
Then, the display pattern to the common liquid crystal display cells 10 of the 1st～the 3rd embodiment describes.
Fig. 2 is the general view of display pattern that the liquid crystal display cells 10 of these embodiment is shown.For example be assumed to be the information display panel of mobile unit.Epimere in effective viewing area 100, the section display part 22 that has disposed 1 section the display part 21 that " AM " such character is shown and carried out showing constantly.The character display portion 21 of " AM " is disposed at the left side of display part 22 constantly.Display part 22 has constantly: 7 sections display parts of 3; And from 1 section the display part that ": " (colon) is shown between the 1st and the 2nd of left side.
At the effective hypomere of viewing area 100, about disposed 1 section the display part 23,24 that " TEMP " such character is shown respectively and carried out the section display part 25,26 that temperature shows.The character display portion 23,24 of " TEMP " is configured in the top of each temperature display part 25,26 respectively. Temperature display part 25,26 has 7 sections display parts of 2 respectively.
These sections display part mainly carries out white and shows, still, for example in order to point out the user to note, carries out colour and show on the section display part of a part.
In this embodiment, constantly display part 22, about the character display portion 23,24 of " TEMP " and the temperature display part 26 on right side carry out white demonstration.And the character display portion 21 of " AM " is carried out the yellow demonstration, and the temperature display part 25 in left side carries out red display.
Then, the back light unit 5 to the liquid crystal indicator of the 1st embodiment describes.In the liquid crystal indicator of the 1st embodiment, the character display portion 21 of " AM " and the temperature display part 25 in left side also carry out white usually and show, show and make these display parts 21,25 carry out colour under particular condition.
Fig. 3 is the general view of back light unit 5 that the liquid crystal indicator of the 1st embodiment is shown.The back light unit 5 of the 1st embodiment has: have the scatter plate 31 of the size corresponding with effective viewing area 100 and light source 32W, 32Y, the 32R of all kinds that is disposed at (display surface normal direction) below of scatter plate 31.As light source 32W, 32Y, 32R of all kinds, for example use and can be used as the inorganic light-emitting diode (LED) that pointolite is treated substantially.
Be included in the yellow irradiation area 33Y that interior scope is a hope irradiation sodium yellow than character display portion 21 big circles that will carry out yellow " AM " that shows and with character display portion 21.So that see through the mode that the sodium yellow behind the scatter plate 31 roughly shines yellow irradiation area 33Y equably, yellow light sources 32Y optionally is configured in the below (below of the character display portion 21 of " AM ") of yellow irradiation area 33Y.In addition, yellow light sources having been marked left oblique line represents.
Be included in the red irradiation area 33R that interior scope is a hope irradiation red light than temperature display part 25 big circles that will carry out red display and with temperature display part 25.So that see through the mode that the red light behind the scatter plate 31 is roughly shone red irradiation area 33R equably, red light source 32R optionally is configured in the below (below of temperature display part 25) of red irradiation area 33R.In addition, red light source having been marked right oblique line represents.
Configuration by this white light source, yellow light sources and red light source, the character display portion 21 of " AM " can be used as the white of main demonstration look and shows as the inferior yellow of look that shows, temperature display part 25 can be used as the master and shows that the white of look and the redness of conduct time demonstration look show.
Optionally be configured in the below of corresponding section display part by the light source that each is shown look (particularly time show look), suppressed to show look mixing to each other.
The mode of operation of whole display parts all being carried out the white demonstration is called white display mode.And, with character display portion 21 and temperature display part 25 with inferior look beyond the white carry out colored demonstration, all the other display parts are called color display mode with the mode of operation that the white as mass-tone shows.
Then, the driving method to the color display mode of the liquid crystal indicator of the 1st embodiment describes.With 1 section the display part section of being called S1 display pattern shown in Figure 2, that carry out " TEMP " on the white right side that shows, temperature display part 25 with the left side of carrying out red display is representative, with the section display part section of the being called S2 of lower right side in 7 sections display parts of the position on right side, will carry out 1 section the display part section of the being called S3 of yellow " AM " that shows.
The sequential chart that field preface when Fig. 4 A is the color display mode of liquid crystal indicator of the 1st embodiment drives.The section of showing S1～S3 voltage separately applies the illuminating state of state and light transmission and each color light source.
Carry out repeatedly frame as the drive sequences that shows chronomere.For example, frame rate is 50Hz, and 1 frame is 20ms.There is shown the amount (frame F1 and F2) of 2 frames.1 frame is divided into 2 subframe SB1 and SB2.In this embodiment, frame is carried out impartial cutting apart, 1 subframe is 10ms.
At first, section S1～S3 voltage is separately applied state and light transmission describes.In the zero hour of subframe SB1, begin section S1 is applied voltage.But, because the response characteristic of liquid crystal cells applies the light transmission that begins to reach bright demonstration from voltage, approximately need the rising response time of 2.0ms, and, apply from voltage and to play light transmission and begin to increase, approximately need the time delay of 1.4ms.After reaching the light transmission of bright demonstration, till subframe SB1 finish time, keep bright show state.
In the finish time of subframe SB1, that is,, apply end at the voltage of section S1 in the zero hour of the subframe SB2 that joins with it.But, because the response characteristic of liquid crystal cells, apply from voltage and to finish to reach to show slinkingly the light transmission that shows, approximately need the decline response time of 2.5ms.
On the other hand, section S2 and S3 are applied in voltage in subframe SB2.Because the response characteristic of liquid crystal cells, section S2, S3 also show the variation of the light transmission identical with section S1.
Then, the illuminating state to each color light source describes.Among the subframe SB2 before subframe SB1, the section S2 of red display and the yellow section S3 that shows are bright show state.In the finish time of subframe SB2, that is,, apply end at the voltage of section S2 and S3 in the zero hour of subframe SB1, still, section S2 and S3 become show slinkingly show state before, approximately need decline response time of 2.5ms.
In order to prevent that white light is blended among the red display section S2 and yellow display segment S3 that is in bright show state in subframe SB2 before, in subframe SB1, wait for and the blank time (being 2.5ms in this embodiment) of the response time equal extent that descends, begin white again and light.White is lighted and will be lasted till the finish time of subframe SB1 always.
On the other hand, in subframe SB2, be blended among the white display segment S1 that in subframe SB1 before, is in bright show state,, begin redness again and light with yellow and light from the wait zero hour blank time of subframe in order to prevent red light and sodium yellow.Redness is lighted and yellow lighting the finish time that always lasts till subframe SB2.
For per 1 frame, the time of lighting of each color is 7.5ms (the subframe time, 10ms deducted blank time 2.5ms).
Like this, in the liquid crystal indicator of the 1st embodiment, all carry out so no colour break-up field preface at any section display part and drive, that is:, only in 1 subframe, carry out bright demonstration for per 1 frame.
No colour break-up field preface with reference to Fig. 8 explanation drives as a comparative example.The common no colour break-up field preface of comparative example drives has used polychromatic source, and by the illuminant colour at each subframe change polychromatic source, thereby in each subframe, obtained the demonstration look of expecting.
On the other hand, in the liquid crystal indicator of the 1st embodiment, each is shown that the monochromatic source of look (particularly time demonstration look) optionally is configured in the below of corresponding section display part, thus, is that the field preface of not having colour break-up under the situation of not using polychromatic source drives.
Optionally be configured in the below of corresponding section display part by the light source that each is shown look (particularly time show look), suppressed to show the colour mixture of look.
And, in no colour break-up field preface drives, show that in different subframes the conduct master shows the white of look and as time redness of demonstration look and yellow, thus, prevented colour mixture.
But, owing to be in identical subframe, to show as time showing the red and yellow of look, so, still there is the possibility of colour mixture.In the display pattern of the 1st embodiment, across the character display portion 23 of in the subframe different, carrying out " TEMP " in the white left side that shows, the temperature display part 25 and the character display portion 21 of yellow " AM " that shows of red display are separated with the red and yellow subframe that shows.
Like this, be 2 colors when above at inferior demonstration look, be separated from each other across main white display part by making these display parts, thus, improved inferior demonstration look colour mixture each other and suppressed effect.
And, be 2 colors when above at inferior demonstration look, (in display surface) is made as these display parts bee-line each other more than the 10mm, is preferably more than the 20mm, and to show that looks colour mixture each other suppresses effect very desirable for improving these.
In addition, show that the subframe that shows with less important colour is the example of equal time although understand main white, still, the white main for blast shows, also can set the subframe that white shows longer.
In addition, when making whole display parts all carry out working under the white white display mode that shows, stop a preface and drive, white light source is lighted, liquid crystal display cells and back light unit are carried out asynchronous driving.
Then, the driving method to the color display mode of the variation of the 1st embodiment describes.
The sequential chart that field preface when Fig. 4 B is the color display mode of variation of the 1st embodiment drives.The section of showing S1～S3 voltage separately applies the illuminating state of state and light transmission and each color light source.
As the color display mode to the 1st embodiment describes, for example in the finish time of subframe SB1, that is,, apply end at the voltage of section S1 in the zero hour of subframe SB2, section S1 switches to show slinkingly with the decline response speed of about 2.5ms and shows state.
On the other hand, in the zero hour of subframe SB2, begin section S2 and S3 are applied voltage, still, during time delay of the about 1.4ms that begins to increase up to light transmission, section S2 and S3 keep showing slinkingly showing state.
Therefore, if be in from subframe SB2 the zero hour about 1.4ms time delay during, then section S2 and S3 still keeps showing slinkingly and shows state, on the other hand, the transmittance state that section S 1 keeps to a certain degree.
When lighting of the white light source of lighting extends in this time delay at initial stage of subframe SB2, can prevent from section S2 and S3, to take place the colour mixture of white, display brightness that can the section of raising S1 in subframe SB1.
Equally,, then prevent from section S1, to take place red and yellow colour mixture if make lighting the initial stage that extends to subframe SB1 of the red light source in subframe SB2, lighted and yellow light sources, can the section of raising S2 and the display brightness of S3.
The color display mode of the variation of the 1st embodiment has carried out this prolongation of lighting backlight.The time expand of lighting in next subframe for example is about 1ms.Other aspects are identical with the driving method of the 1st embodiment.
Then, the liquid crystal indicator to the 2nd embodiment describes.The display pattern of the 2nd embodiment identical with the 1st embodiment (with reference to Fig. 2), but the structure difference of back light unit.The 2nd embodiment is also same with the 1st embodiment, mainly carries out white and shows, the character display portion 21 of " AM " and the temperature display part 25 in left side also carry out white usually and show, show and make these display parts 21,25 carry out colour under particular condition.
The back light unit of the 1st embodiment be with the light source of all colours all the section of being configured in display part the below under the type structure.The back light unit of the 2nd embodiment for the main light source that shows the white of look of conduct, has adopted the side light type structure as described below, for the light source that shows look (red, yellow) as time colour of demonstration look, type structure under having adopted.
Fig. 5 is the summary section of back light unit 5A that the liquid crystal indicator of the 2nd embodiment is shown.Show along the section of the dotted line AB of left side display pattern shown in Figure 2, the crosscut red display temperature display part 25 and the white right side temperature display part 26 that shows.
The back light unit 5A of the 2nd embodiment has: have the light guide plate 41 of the size corresponding with effective viewing area and be disposed at white light source 42W on the end face of light guide plate 41.That is, white light source 42W is not the below that is configured in the section display part that carries out the white demonstration, but is configured in the outside of side, thereby for white light, has formed the structure backlight of side light type.Light guide plate 41 is roughly shone the light of emitting from white light source 42W equably to the top of whole effective viewing area.
Below the red irradiation area 43R of hope irradiation red light, optionally dispose red light source 42R.To red irradiation area 43R, wherein, described red reflective parts 44 reflect light from red light source 42R to define mode at the scope of direction in the face to red reflective parts 44 with reflecting surface upward with the photoconduction of red light source 42R.
Equally, below the yellow irradiation area of hope irradiation sodium yellow, optionally dispose yellow light sources, sodium yellow reflection part with reflecting surface with the photoconduction of yellow light sources to yellow irradiation area, wherein, described sodium yellow reflection part reflects light from yellow light sources upward to define mode at the scope of direction in the face.For red light, sodium yellow, the structure backlight of type under having formed.
About the driving method in color display mode or the white display mode, the liquid crystal indicator of the 2nd embodiment is also identical with the 1st embodiment or its variation.
In color display mode, the liquid crystal indicator of the 2nd embodiment also is especially at the inferior light source that respectively shows the monochrome in the look that shows the colour of look of conduct, by it optionally being configured in the below of corresponding section display part, thus, need not to use polychromatic source, field preface that can not have colour break-up drives.
Then, the liquid crystal indicator to the 3rd embodiment describes.The display pattern shape of the 3rd embodiment identical with the 1st embodiment (with reference to Fig. 2), but 25 of the temperature display parts in the character display portion 21 of " AM " and left side carry out redness, yellow colour shows.That is, colored display part does not switch to white and shows, and carries out the colour demonstration of specified color all the time.
Fig. 6 is the general view of back light unit 5B that the liquid crystal indicator of the 3rd embodiment is shown.The back light unit 5B of the 3rd embodiment is following structure: from the back light unit 5 (with reference to Fig. 3) of the 1st embodiment, removed the white light source 32W (52W) that yellow irradiation area 33Y (53Y) and red irradiation area 33R (53R) are shone.
That is,, the character display portion 21 of " AM " and temperature display part 25 show and red display because only carrying out yellow respectively, so, below these display parts, only dispose yellow light sources 53Y and 53R respectively, and do not disposed white light source 52W.Only other carry out display part that white shows below disposed white light source 52W.
The liquid crystal indicator of the 3rd embodiment can be described as and remove the work functions under the white display mode from the liquid crystal indicator of the 1st embodiment or its variation, under color display mode, similarly drive, carry out the action identical with variation with these embodiment with the 1st embodiment or its variation.
When the liquid crystal indicator that carries out colored display action of producing above-mentioned the 1st embodiment and variation thereof, the 2nd embodiment and the 3rd embodiment and carry out outward appearance when observing, can access good show state.
As described above, by adopting so that the mode of the corresponding section display part of monochromatic source of all kinds irradiation optionally disposes the structure backlight of this monochromatic source of all kinds, thus, need not to use polychromatic source, can not have the colour demonstration that colour break-up field preface drives.
In addition, in the above-described embodiments, illustration such liquid crystal indicator: in this liquid crystal indicator, show that as the basis look (being white among the embodiment) colour that shows in addition shows look, shown 2 colors (among the embodiment for red and yellow).But, show that as the basis colour that shows beyond the look shows look, can be as required, be made as 1 color or 3 more than the color.
In addition, about the display pattern of liquid crystal indicator, except the section display part that carries out colored display action shown in the foregoing description, still can comprise the matrix display part.
As the product of the technology that can use above embodiment, can list various information display devices.Guidance panel display part of office equipment such as the display part of audio-visual equipment such as in-vehicle information display device, automobile audio, duplicating machine etc. for example.
Though describe the present invention according to above embodiment, the invention is not restricted to this.It will be apparent to those skilled in the art that, for example can carry out various changes, improvement and combination etc.
Claims (5)
1. liquid crystal indicator, this liquid crystal indicator has:
Liquid crystal display cells, it comprises the 1st section display part and the 2nd section display part in the viewing area;
Backlight assembly, it comprises the 1st light source and the 2nd light source at least, the 1st light source is configured in the display surface normal direction below of described the 1st section display part or the outside, side of described the 1st section display part, radiate the light of the 1st color, the 2nd light source is configured in the below of described the 2nd section display part and is not configured in the below of described the 1st section display part, radiate the light of 2nd color different with described the 1st color, this backlight assembly makes the light of the 1st color incide the 1st section display part, and makes the light of the 2nd color incide the 2nd section display part; And
Drive unit, it will be divided into 2 subframes as 1 frame that shows chronomere, carrying out a preface drives, this drive unit is controlled described liquid crystal display cells and described backlight assembly as follows, described the 1st section display part and described the 2nd section display part are shown with described the 1st color and described the 2nd color respectively, described mode is: at per 1 frame, in a subframe, make described the 1st section display part carry out bright demonstration, and light described the 1st light source, in another subframe, make described the 2nd section display part carry out bright demonstration, and light described the 2nd light source.
2. liquid crystal indicator according to claim 1, wherein,
Described liquid crystal display cells also comprises the 3rd section display part, the 3rd section display part across described the 1st section display part and described the 2nd section display part from,
Described backlight assembly also comprises the 3rd light source, the 3rd light source is configured in the below of described the 3rd section display part and is not configured in the below of described the 1st section display part and described the 2nd section display part, radiate the light of 3rd color different with described the 2nd color with described the 1st color, described backlight assembly makes the light of the 3rd color incide the 3rd section display part
Described drive unit is also to make described the 3rd section display part and carry out bright demonstration and to light the mode of described the 3rd light source in described another subframe, described liquid crystal display cells and described backlight assembly are controlled, and in this another subframe, described drive unit makes the 3rd section display part show with the 3rd color when described the 2nd section display part shown with described the 2nd color.
3. liquid crystal indicator according to claim 1, wherein,
Described liquid crystal display cells also comprises the 3rd section display part, the 3rd section display part and described the 2nd section display part more than 10mm,
Described backlight assembly also comprises the 3rd light source, the 3rd light source is configured in the below of described the 3rd section display part and is not configured in the below of described the 1st section display part and described the 2nd section display part, radiate the light of 3rd color different with described the 2nd color with described the 1st color, described backlight assembly makes the light of the 3rd color incide the 3rd section display part
Described drive unit is also to make described the 3rd section display part and carry out bright demonstration and to light the mode of described the 3rd light source in described another subframe, described liquid crystal display cells and described backlight assembly are controlled, and in this another subframe, described drive unit makes the 3rd section display part show with the 3rd color when described the 2nd section display part shown with described the 2nd color.
4. according to each the described liquid crystal indicator in the claim 1～3, wherein,
Described the 1st color is a white.
5. according to each the described liquid crystal indicator in the claim 1～3, wherein,
Described backlight assembly comprises light guide plate, this light guide plate is extended with the flat shape that comprises described the 1st section display part and described the 2nd section display part, described the 1st light source is configured in the outside, side of this light guide plate, described the 2nd light source is configured in the below of described the 2nd section display part of this light guide plate below, and described the 2nd section display part can show any one color in described the 1st color and described the 2nd color.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-118750 | 2009-05-15 | ||
| JP2009118750A JP2010266746A (en) | 2009-05-15 | 2009-05-15 | Liquid crystal display device |
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| Publication Number | Publication Date |
|---|---|
| CN101887183A true CN101887183A (en) | 2010-11-17 |
| CN101887183B CN101887183B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010181112.3A Expired - Fee Related CN101887183B (en) | 2009-05-15 | 2010-05-13 | Liquid crystal indicator |
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| JP (1) | JP2010266746A (en) |
| CN (1) | CN101887183B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105158967A (en) * | 2015-10-23 | 2015-12-16 | 京东方科技集团股份有限公司 | Vehicle-mounted liquid crystal display device, manufacturing method and vehicle |
| WO2016192278A1 (en) * | 2015-05-29 | 2016-12-08 | 京东方科技集团股份有限公司 | Field sequential display panel, field sequential display device and driving method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6300435B2 (en) * | 2012-09-10 | 2018-03-28 | スタンレー電気株式会社 | Liquid crystal display device and driving method of liquid crystal display device |
| JP2014219463A (en) * | 2013-05-02 | 2014-11-20 | スタンレー電気株式会社 | Liquid crystal display device |
| KR102269886B1 (en) * | 2020-03-27 | 2021-06-25 | 손혁준 | 7 Segment using side light source |
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| JP2005173309A (en) * | 2003-12-12 | 2005-06-30 | Matsushita Electric Ind Co Ltd | Display device |
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| US8233118B2 (en) * | 2008-08-12 | 2012-07-31 | Au Optronics Corporation | Liquid crystal display with a backlight source comprising first light source components and second light source components different from the first light source components |
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| JP2000019481A (en) * | 1998-06-17 | 2000-01-21 | Roehm Properties Bv | Liquid crystal display device |
| JP2005173309A (en) * | 2003-12-12 | 2005-06-30 | Matsushita Electric Ind Co Ltd | Display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101887183B (en) | 2016-01-06 |
| JP2010266746A (en) | 2010-11-25 |
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