CN104965339B - A kind of color filter and liquid crystal display panel - Google Patents
A kind of color filter and liquid crystal display panel Download PDFInfo
- Publication number
- CN104965339B CN104965339B CN201510442085.3A CN201510442085A CN104965339B CN 104965339 B CN104965339 B CN 104965339B CN 201510442085 A CN201510442085 A CN 201510442085A CN 104965339 B CN104965339 B CN 104965339B
- Authority
- CN
- China
- Prior art keywords
- sub
- demux
- pixel unit
- liquid crystal
- crystal display
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of color filter and liquid crystal display panel, wherein, color filter includes：Transparent substrates, patterning light shield layer, colored light-filtering units, patterning light shield layer set on a transparent substrate and form multiple filter areas, and each colored light-filtering units are correspondingly arranged with each filter area, wherein, the area of multiple filter areas is not all equal.The color filter can be consistent by the mode that filter area transmitance compensates come the brightness of each sub-pixel unit, the problem of so as to eliminate picture colour cast.
Description
Technical field
The present invention relates to technical field of liquid crystal display, specifically, are related to a kind of color filter and liquid crystal display panel.
Background technology
Liquid crystal display has many advantages, such as Low emissivity, small and low energy consumption, gradually substitutes traditional cathode
Ray tube display and be widely used on the products such as flat panel TV, PC and mobile display panel.
As shown in Figure 1, it is generally the case that each sub-pix in liquid crystal display panel is by a scan line (gate
Line) controlled with a data line (data line).Therefore, as soon as resolution is the liquid crystal display panel of M × N, need
Configure M scan line and 3N items (each pixel unit is made of tri- sub-pixes of R, G, B) data cable.
However, the bigger and smaller both direction development of one side liquid crystal display panel forward direction, and for the liquid crystal of small size
For display panel, due to limited in space, a driving chip can only be usually configured in this kind of liquid crystal display panel.
And on the other hand, with the raising of liquid crystal display panel resolution, the sub-pixes such as R, G, B included in liquid crystal display panel
Quantity is also more and more.Therefore, in the case of limited in space, generally use DEMUX liquid crystal display panels reduce driving core
The output pin number of piece.
However existing DEMUX liquid crystal display panels are operationally, and under dot inversion or heavily loaded pattern, liquid crystal display panel
The problem of color is partially blue or green is susceptible to when showing pure white picture.
The content of the invention
The technical problems to be solved by the invention are to formulate picture (example in display to improve existing liquid crystal display panel
Such as pure white picture) when be susceptible to the problem of color is partially blue or green.To solve the above problems, one embodiment of the present of invention carries first
A kind of color filter is supplied, the color filter includes：Transparent substrates, patterning light shield layer, colored light-filtering units, it is described
Patterning light shield layer sets on the transparent substrate and forms multiple filter areas, each colored light-filtering units and each filter area
It is correspondingly arranged, wherein, the area of the multiple filter area is not all equal.
According to one embodiment of present invention, the patterning light shield layer includes black matrix, wherein, the width of the black matrix
It is not all equal.
According to one embodiment of present invention, the color filter, which further includes, is arranged on the patterning light shield layer and coloured silk
Light transmission module on color filter unit.
According to one embodiment of present invention, the multiple colored light-filtering units include red color resistance, blue color blocking and green
Color color blocking, wherein, the area equation of blue color blocking and the corresponding filter area of green color blocking, the face of the corresponding filter area of red color resistance
Product is more than blue color blocking and the area of the corresponding filter area of green color blocking.
The present invention also provides a kind of liquid crystal display panel, the liquid crystal display panel includes：Color filter and array
Substrate, the color filter are as above any one of them color filter.
According to one embodiment of present invention, the array substrate includes：
Multiple picture element modules, each picture element module include the first sub-pixel unit and the second sub-pixel unit, described first
Sub-pixel unit and the second sub-pixel unit are connected with same data cable, and the charging ability of first sub-pixel unit is less than institute
The charging ability of the second sub-pixel unit is stated,
Wherein, each filter area is correspondingly arranged with each sub-pixel unit in the color filter, the described first sub- picture
The area of filter area corresponding to plain unit is more than the area of the filter area corresponding to second sub-pixel unit.
According to one embodiment of present invention, operationally, first sub-pixel unit is prior to second sub-pix
Unit charges.
According to one embodiment of present invention, the liquid crystal display panel further includes：
DEMUX is switched, including data signal input mouth, at least two DEMUX control signal inputs mouths and at least
Two data-signal output ports, the data signal input mouth are connected with corresponding data cable, at least two data
Signal output port is correspondingly connected with respectively at least two sub-pixel units；
DEMUX control signal generation circuits pass through at least two scan lines and at least two DEMUX control signals
Input port is correspondingly connected with, for generating DEMUX control signals and being sent to the DEMUX control signals pair by scan line
The DEMUX control signal input mouths answered, wherein,
The DEMUX control signals include the first control signal and use that are sent to first control signal input port
In the second control signal for being sent to second control signal input port, when showing assigned picture, the first control signal
The voltage of middle useful signal is more than the voltage of useful signal in the second control signal.
According to one embodiment of present invention, the switch includes first switch unit and second switch unit, wherein,
The control port of the first switch unit and second switch unit is respectively formed the first of the DEMUX switches
DEMUX control signal inputs mouth and the 2nd DEMUX control signal input mouths, the first switch unit and second switch list
First external-connected port of member is connected and forms the data signal input mouth of DEMUX switch, the first switch unit and
Second external-connected port of second switch unit is respectively formed the first data signal output mouth and the second number of the DEMUX switches
According to signal output port.
According to one embodiment of present invention, the picture element module further includes the 3rd sub-pixel unit, Sanya picture
Plain unit and the second sub-pixel unit are connected with same data cable, wherein, the filter area corresponding to the 3rd sub-pixel unit
Area and second sub-pixel unit corresponding to filter area area equation.
The filter area of color filter provided by the present invention uses filter area unlike existing color filter
Etc. sizes structure, but employ the structure type of the filter area sizes such as not.When with the array in DEMUX liquid crystal display panels
When substrate is assembled, the larger filter area of area is by the Asia weaker with charging ability in liquid crystal display panel in color filter
Pixel unit is corresponding, and the smaller filter area of area then will be with the stronger sub-pixel unit of charging ability in liquid crystal display panel
It is corresponding.In this way, color filter can be by mode that filter area transmitance compensates come each sub-pixel unit
Brightness can be consistent, the problem of so as to eliminate picture colour cast.
Meanwhile DEMUX liquid crystal display panels provided by the present invention can also driving voltage compensation by way of, into
One step ensures that the charging ability of each sub-pix can be consistent, so that the picture that liquid crystal display panel is presented is more
Uniformly.
Specifically, when driving the liquid crystal display panel, using DEMUX control signals generation circuit by charging ability compared with
The cut-in voltage (i.e. the driving voltage of switch unit) of switch unit corresponding to the sub-pixel unit of difference rises above same
The cut-in voltage of switch unit in picture element module corresponding to other sub-pixel units, with this come be further compensate for due to reversion or
The reasons such as override signal and caused by each sub-pixel unit charging ability difference, and then improve even eliminate picture brightness not
The problem of uniform.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and attached drawing.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is required attached drawing in technology description to do simple introduction：
Fig. 1 is the structure diagram of array substrate in existing liquid crystal display panel；
Fig. 2 is the partial circuit schematic diagram of existing DEMUX liquid crystal display panels；
Fig. 3 is the sequence diagram of the drive signal of existing DEMUX liquid crystal display panels；
Fig. 4 is the sub-pix arrangement schematic diagram of existing DEMUX liquid crystal display panels；
Fig. 5 is the structure diagram of the open region corresponding to each sub-pix in existing DEMUX liquid crystal display panels；
Fig. 6 is the structure diagram of color filter according to an embodiment of the invention；
Fig. 7 is the opening corresponding to each sub-pix in DEMUX liquid crystal display panels according to an embodiment of the invention
The structure diagram in area；
Fig. 8 is the structure diagram of liquid crystal display panel according to an embodiment of the invention；
Fig. 9 is the partial circuit schematic diagram of DEMUX liquid crystal display panels according to an embodiment of the invention；
Figure 10 is the sequence diagram of the drive signal of DEMUX liquid crystal display panels according to an embodiment of the invention.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to accompanying drawings and embodiments, how the present invention is applied whereby
Technological means solves technical problem, and the realization process for reaching technique effect can fully understand and implement according to this.It needs to illustrate
As long as not forming conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other,
The technical solution formed is within protection scope of the present invention.
Meanwhile in the following description, for illustrative purposes and numerous specific details are set forth, to provide to of the invention real
Apply the thorough understanding of example.It will be apparent, however, to one skilled in the art, that the present invention can not have to tool here
Body details or described ad hoc fashion are implemented.
Fig. 2 shows the partial circuit diagram of existing DEMUX liquid crystal display panels, and Fig. 3 shows the liquid crystal display panel
Drive signal sequence diagram.
From Fig. 2 and Fig. 3 as can be seen that in a picture element module of existing liquid crystal display panel, pixel is sent to
In module in the drive signal of each sub-pixel unit (i.e. sub-pixel unit R, sub-pixel unit G and sub-pixel unit B) effectively
The duration of signal (i.e. so that the signal for the thin film transistor (TFT) conducting that sub-pixel unit is connected, is usually high level) is equal
(being t1), while the voltage swing of useful signal is also equal (being V1).
However, in a picture element module of existing liquid crystal display panel, sub-pixel unit R always first charges, still
It is filled with same unlike other sub-pixel units (i.e. sub-pixel unit G and sub-pixel unit B) in the picture element module
Signal, meanwhile, along with the influence of RC retardation ratio, the charging effect of sub-pixel unit R is allowed for than the sub- picture in the picture element module
The charging effect of plain unit G and sub-pixel unit B is poor, so that the display effect of sub-pixel unit R is partially dark.It is in this way, this kind of
Liquid crystal display panel is just present with color offset phenomenon when showing specific picture.
For example, the arrangement of each sub-pixel unit is as shown in figure 4, the liquid crystal display panel is pure white in display in liquid crystal panel
During picture, since the display effect of sub-pixel unit R is partially dark, the liquid crystal display panel be present with the color of display it is partially blue or green or
The problem of person's data end is partially blue or green.
In existing DEMUX liquid crystal display panels, the open region of the color filter corresponding to each sub-pix (is filtered
Area) structure it is as shown in Figure 5.From figure 5 it can be seen that the area of the open region of existing color filter is equal.And such as
If fruit uses this color filter, if it is desired to the sub- picture that each picture element module is included in DEMUX liquid crystal display panels
Plain unit shows 255 gray-scale intensities, then sub-pixel unit R can actually show in DEMUX liquid crystal display panels
Gray-scale intensity will likely only have 200, that is, the actual displayed effect of sub-pixel unit R is partially dark.
For this characteristic of existing DEMUX liquid crystal display panels, the present embodiment provides a kind of with different big
The color filter of small open region (i.e. filter area), the color filter can charge to filling in DEMUX liquid crystal display panels
The weaker sub-pixel unit of ability carries out luminance compensation, so that liquid crystal display panel is in display assigned picture (such as white
Picture) when, the brightness that each sub-pix is presented in DEMUX liquid crystal display panels is equal.
Specifically, structure chart such as Fig. 6 and figure of color filter in the DEMUX liquid crystal display panels that the present embodiment is provided
Shown in 7.As shown in fig. 6, the color filter that the present embodiment is provided includes：Light-transmissive substrates 601, patterning light shield layer 602, coloured silk
Color filter unit 603 and the light transmission module comprising flatness layer 604 and ITO layer 605.
Patterning light shield layer 602 is arranged in light-transmissive substrates 601, can form multiple filter areas.Each colorized optical filtering
Unit 603 is correspondingly arranged with each filter area.Preferably, a colored light-filtering units 603 are set in each filter area.Flatness layer
604 are formed in patterning light shield layer 602 and colored light-filtering units 603, and ITO layer is formed on flatness layer 604.Specifically, originally
In embodiment, patterning light shield layer 602 realizes that light-transmissive substrates 601 are realized using glass substrate using black matrix.
It should be noted that in other embodiments of the invention, light-transmissive substrates 601 and/or patterning light shield layer 602 are also
Other rational materials or component and structure may be employed to realize, the invention is not limited thereto.
In the present embodiment, different colored light-filtering units 603 include different color blockings.In general, the picture of liquid crystal display panel
Comprising three sub-pixel units (i.e. sub-pixel unit R, sub-pixel unit G and sub-pixel unit B) in plain module, and these three are sub-
Colored light-filtering units corresponding to pixel unit are respectively then red color resistance, green color blocking and blue color blocking.
The charging ability of each sub-pixel unit is different in DEMUX liquid crystal display panels, and in order to ensure LCD display
The plate brightness that each sub-pixel unit is showed when showing specific picture (such as white picture) is identical, and the present embodiment is carried
The area of each filter area is not all equal in the color filter of confession.
Specifically, in the present embodiment, in DEMUX liquid crystal display panels in each picture element module sub-pixel unit R charging
Ability is poor.Therefore, as shown in fig. 7, filter area in the color filter that the present embodiment is provided corresponding to sub-pixel unit R
Area be more than the area of the filter area in same picture element module corresponding to other sub-pixel units, the i.e. corresponding filter of red color resistance
The area in light area is more than the area of the filter area corresponding to blue color blocking and green color blocking.And due to each picture element module Central Asia picture
Plain unit G is identical with the charging ability of sub-pixel unit B, therefore in the color filter, sub-pixel unit G and sub-pix list
The area of filter area corresponding to the area equation of filter area corresponding to first B, i.e. blue color blocking is equal to corresponding to green color blocking
Filter area area.In the present embodiment, by reducing the wide cut of the black matrix corresponding to sub-pixel unit R come sub-pix
The area of filter area corresponding to unit R is more than the area of the filter area corresponding to sub-pixel unit G.
In this way, when the color filter is mounted in DEMUX liquid crystal display panels, the poor sub-pix list of charging ability
The area of filter area corresponding to member is larger, and the area of the filter area corresponding to the preferable sub-pixel unit of charging ability compared with
It is small.Therefore, color filter will pass through the transmitance of the poor sub-pixel unit of opposite increase charging ability so that so that this kind of
Sub-pixel unit can show the picture of same brightness with other sub-pixel units.
In order to further avoid DEMUX liquid crystal display panels due to sub-pixel unit charging ability is different and it is inclined picture occur
The problem of color, as shown in figure 8, being further included in the liquid crystal display panel that the present embodiment is provided：DEMUX control signal generation circuits
801 and DEMUX switches 802.The array substrate 803 of liquid crystal display panel includes a plurality of data lines interlaced with each other and a plurality of sweeps
It retouches line and is formed in data cable and the pixel region of scan line interlaced area, sub-pix list is formed in each pixel region
Member.In the present embodiment, sub-pixel unit includes the components such as pixel electrode and public electrode.
In the present embodiment, DEMUX switch 802 it include：Data signal input mouth, at least two DEMUX control signals
Input port and at least two data signal output mouths.Wherein, data signal input mouth is connected with corresponding data cable, respectively
A data-signal output port is correspondingly connected with respectively with each sub-pixel unit, and DEMUX control signal inputs mouth is controlled with DEMUX
Signal generating circuit connection processed.DEMUX switches 802 enable liquid crystal display panel by a data line come at least two
Sub-pixel unit charges, and so as to reduce the quantity of required data cable, and then reduces liquid crystal display panel driving chip
Number of pins.
DEMUX control signals generation circuit 801 is controlled by multi-strip scanning line with each DEMUX of DEMUX switches 802
Signal input port is correspondingly connected with.DEMUX control signals generation circuit 801 can generate DEMUX control signals, and by DEMUX
Control signal is sent to corresponding DEMUX control signal inputs mouth by scan line, so as to control data signal input mouth
Connection conducting between corresponding data signal output mouth, and then charge to corresponding sub-pixel unit.
When showing assigned picture (such as pure white picture when), in order to ensure the display brightness phase of each sub-pixel unit
Together, so as to which liquid crystal display panel be avoided color offset phenomenon occur, in the present embodiment, for the sub-pixel unit that charging ability is poor
(such as the first sub-pixel unit, wherein, the first sub-pixel unit is the sub-pix list to charge at first in pixel unit
Member, in the present embodiment, the first sub-pixel unit, that is, sub-pixel unit R), it is sent in the first control signal of the sub-pixel unit
The voltage of useful signal, which is greater than, to be sent to other sub-pixel units (such as the second sub-pixel unit, in the present embodiment, second is sub-
Pixel unit, that is, sub-pixel unit G) second control signal in useful signal voltage so that these sub-pixel units
Display brightness is equal, can so effectively eliminate display picture and there are problems that colour cast.
In order to clearly illustrate the purpose of the present invention, principle and advantage, below with DEMUX liquid crystal shown in Fig. 9
It is further described exemplified by the partial circuit schematic diagram of display panel.
As shown in figure 9, the liquid crystal display panel that the present embodiment is provided includes the first DEMUX switches 901 and the 2nd DEMUX
Switch 902.Wherein, the first DEMUX switches 901 and the 2nd DEMUX switches 902 are respectively provided with three DEMUX control signal inputs
Mouth, three data-signal output ports and a data-signal input port.
First DEMUX switch 901 three DEMUX control signal inputs mouths respectively with scan line Demux_R, scan line
Demux_G is connected with scan line Demux_B, the first DEMUX switch 901 three data-signal output ports respectively with the first picture
Pixel electrode (i.e. pixel electrode 903a, pixel electrode 903b and the pixel electricity of three sub-pixel units included in plain module
Pole 903c connections), the data signal input mouth of the first DEMUX switches 901 is connected with data cable DataN.
2nd DEMUX switch 902 three DEMUX control signal inputs mouths equally respectively with scan line Demux_R, sweep
It retouches line Demux_G to connect with scan line Demux_B, three data-signal output ports of the 2nd DEMUX switches 902 are respectively with the
Pixel electrode (i.e. pixel electrode 904a, pixel electrode 904b and the picture of three sub-pixel units included in two picture element modules
Plain electrode 904c connections), the data signal input mouth of the 2nd DEMUX switches 902 is connected with data cable DataN+1.
In the present embodiment, the structure of the first DEMUX switches 901 and the 2nd DEMUX switches 902 is identical, for the side of description
Just, it is further described below by taking the first DEMUX switches as an example.
As shown in figure 9, the first DEMUX switches 901 that the present embodiment is provided include three switch units, i.e. first switch
Unit Q1, second switch unit Q2 and the 3rd switch unit Q3.Wherein, the first external-connected port of these three switch units phase each other
Even, the data signal input mouth that the first DEMUX switches 901 are collectively formed to be connected with data cable DataN.
First DEMUX control signal input of the control port of first switch unit Q1 as the first DEMUX switches 901
Mouth to be connected with scan line Demux_R, first data-signal output of second external-connected port as the first DEMUX switches 901
Port to be connected with pixel electrode 903a.
Twoth DEMUX control signal input of the control port of second switch unit Q2 as the first DEMUX switches 901
Mouth to be connected with scan line Demux_G, second data-signal output of second external-connected port as the first DEMUX switches 901
Port to be connected with pixel electrode 903b.
Threeth DEMUX control signal input of the control port of 3rd switch unit Q3 as the first DEMUX switches 901
Mouth to be connected with scan line Demux_B, threeth data-signal output of second external-connected port as the first DEMUX switches 901
Port to be connected with pixel electrode 903c.
In the present embodiment, first switch unit Q1, second switch unit Q2 and the 3rd switch unit Q3 are brilliant using film
Body pipe realizes, wherein, the control port of the grid of thin film transistor (TFT) as switch unit, the source electrode of thin film transistor (TFT) and drain electrode
Respectively as the first external-connected port and the second external-connected port of switch unit.
It should be noted that in other embodiments of the invention, first switch unit Q1, second switch unit Q2 and/
Or the 3rd switch unit Q3 can also realize that the invention is not limited thereto using other rational components or circuit.
Meanwhile in the other embodiment of invention, opened included in the first DEMUX switches and/or the 2nd DEMUX switches
The quantity for closing unit can also be other reasonable values, and the present invention is similarly not so limited to, such as in other embodiments of the invention,
The quantity of switch unit included in first DEMUX switches and/or the 2nd DEMUX switches both can be 2, or 4
More than a, correspondingly, the quantity of sub-pixel unit included in each picture element module and switch included in DEMUX switches
The quantity of unit is equal.
Figure 10 shows the sequence diagram of the drive signal of DEMUX liquid crystal display panels in the present embodiment.
As shown in Figure 10, in the present embodiment, signal caused by DEMUX control signal generation circuits includes：First control
Signal, second control signal and the 3rd control signal.Wherein, first control signal is sent in scan line Demux_R, and second
Control signal is sent in scan line Demux_G, and the 3rd control signal is sent in scan line Demux_B.
In present frame (i.e. nth frame), first control signal becomes the useful signal of high level (in the present embodiment, effectively
Voltage is so that the signal of corresponding switching means conductive) so that first switch unit Q1 and the in the first DEMUX switches 901
First switch unit Q4 is turned in two DEMUX switches 902.At this point, pixel electrode 903a and pixel electrode 904a just respectively with number
It is connected according to line DataN with data cable DataN+1, in this way, the signal on data cable DataN and data cable DataN+1 can divide
It is not transferred on pixel electrode 903a and pixel electrode 904a.
Since second control signal and the 3rd control signal are in low level state, the first DEMUX switches at this time
Second switch unit Q2, the 3rd switch unit Q3 in 901 and the second switch unit Q5 in the 2nd DEMUX switches 902, the
Three switch unit Q6 are in off-state.Therefore, pixel electrode 903b, pixel electrode 903c, pixel electrode 904b and picture
Plain electrode 904c will not be connected with corresponding data cable.
And in lower scan cycle, first control signal and the 3rd control signal are low level state, and the second control
Signal then becomes the useful signal of high level.At this point, it will only be opened in the first DEMUX switches 901 and the 2nd DEMUX switches 902
Unit Q2 and switch unit Q5 is closed to be closed, so as to by pixel electrode 903b and pixel electrode 904b respectively with data cable DataN and
Data cable DataN+1 is turned on.
Similarly, in rear scan cycle, first control signal and second control signal are low level state, and the 3rd control
Signal processed then becomes the useful signal of high level.It at this point, will only in the first DEMUX switches 901 and the 2nd DEMUX switches 902
Switch unit Q3 and switch unit Q6 are closed, so as to by pixel electrode 903c and pixel electrode 904c respectively with data cable DataN
It is turned on data cable DataN+1.
Under dot inversion or heavily loaded pattern, the charging ability of pixel electrode 903a and the sub-pix residing for pixel electrode 904a
Less than the charging ability of other sub-pixes in same pixel unit.Therefore, in order to solve because of the difference of sub-pix charging ability
Caused by show that picture has a colour cast, in the present embodiment, the first switch that is applied in the first DEMUX switches 901
The cut-in voltage V2 of first switch unit 904a in unit 903a and the 2nd DEMUX switches 902, which is greater than, is applied to other
The voltage of useful signal is more than in secondary signal and the 3rd signal and effectively believes in the cut-in voltage V1 of switch unit, i.e. the first signal
Number voltage.So by way of driving voltage disparity compensation, just effectively solves the problems, such as real picture brightness unevenness.
In the present embodiment, useful signal continues in first control signal, second control signal and the 3rd control signal
Duration is suitable, is t1, meanwhile, the voltage of useful signal is also equal in second control signal and the 3rd control signal.It needs
It is bright, in other embodiments of the invention, according to actual needs, effectively believe in second control signal and the 3rd control signal
Number voltage can not also be equal, the invention is not limited thereto.
It should be noted that it not only can be only applied to as described above in the color filter that embodiment is provided
DEMUX liquid crystal display panels, can also apply in other rational liquid crystal display panels, the present invention is similarly not so limited to.
As can be seen that the filter area for the color filter that the present embodiment is provided is unlike existing coloured silk from foregoing description
Color filter employs the structure type of the filter area sizes such as not like that using the structure of the sizes such as filter area.When with
When array substrate in DEMUX liquid crystal display panels is assembled, the filter area that the area of color filter is larger will be with liquid crystal
The weaker sub-pixel unit of charging ability is corresponding in display panel, and the smaller filter area of area will in liquid crystal display panel
The stronger sub-pixel unit of charging ability is corresponding.In this way, the side that color filter can be compensated by filter area transmitance
Formula enables the brightness of each sub-pixel unit to be consistent, the problem of so as to eliminating picture colour cast.
Meanwhile the DEMUX liquid crystal display panels that the present embodiment is provided can also be come by way of driving voltage compensation
Being further ensured that the charging ability of each sub-pixel unit can be consistent, so that the picture that liquid crystal display panel is presented
Face is more uniform.Specifically, when driving the liquid crystal display panel, using DEMUX control signals generation circuit by the energy that charges
The cut-in voltage (i.e. the driving voltage of switch unit) of switch unit corresponding to the poor sub-pixel unit of power rises above
The cut-in voltage of switch unit in same picture element module corresponding to other sub-pixel units is further compensate for this due to anti-
Turn or the reasons such as override signal and caused by each sub-pixel unit charging ability difference, and then improve that even to eliminate picture bright
Spend non-uniform problem.
It should be understood that disclosed embodiment of this invention is not limited to specific structure disclosed herein, processing step
Or material, and the equivalent substitute for these features that those of ordinary skill in the related art are understood should be extended to.It should also manage
Solution, term as used herein is used only for the purpose of describing specific embodiments, and is not intended to limit.
" one embodiment " or " embodiment " mentioned in specification means the special characteristic described in conjunction with the embodiments, structure
Or characteristic is included at least one embodiment of the present invention.Therefore, the phrase " reality that specification various places throughout occurs
Apply example " or " embodiment " same embodiment might not be referred both to.
For convenience, multiple projects as used herein, structural unit and/or component units may alternatively appear in common list.
However, these lists should be interpreted that each element in the list is respectively identified as independent unique member.Therefore, not anti-
Face illustrate in the case of, no one of list member can be based only upon they appear in just be interpreted in common list it is identical
The actual equivalent of any other member of list.In addition, the reference that can also come together herein together with the replacement for each element
Various embodiments of the present invention and example.It should be appreciated that these embodiments, example and replacement be not construed as it is mutual etc.
Jljl, and it is considered as the independent autonomous representative of the present invention.
In addition, described feature, structure or characteristic can be attached to one or more in fact in any other suitable manner
It applies in example.In above description, some concrete details, such as quantity, color etc. are provided, to provide the implementation to the present invention
The comprehensive understanding of example.However, those skilled in the relevant art are readily apparent that, the present invention is without said one or multiple concrete details
It can realize or can also be used the realizations such as other components.In other examples, known structure is not shown or described in detail
In order to avoid fuzzy various aspects of the invention.
Although above-mentioned example is used to illustrate principle of the present invention in one or more application, for the technology of this field
For personnel, in the case of without departing substantially from the principle of the present invention and thought, hence it is evident that can in form, the details of usage and implementation
It is upper that various modifications may be made and does not have to make the creative labor.Therefore, the present invention is defined by the appended claims.
Claims (5)
1. a kind of liquid crystal display panel, which is characterized in that the liquid crystal display panel includes：Color filter and array substrate,
The color filter includes：Transparent substrates, patterning light shield layer, multiple colored light-filtering units, the patterning shading
Layer sets on the transparent substrate and forms multiple filter areas, and each colored light-filtering units are correspondingly arranged with each filter area,
Wherein, the area of the multiple filter area is not all equal,
The array substrate includes：Multiple picture element modules, each picture element module include the first sub-pixel unit and the second sub-pix
Unit, first sub-pixel unit and the second sub-pixel unit are connected with same data cable, first sub-pixel unit
Charging ability is less than the charging ability of second sub-pixel unit,
Wherein, each filter area is correspondingly arranged with each sub-pixel unit in the color filter, the first sub-pix list
The area of filter area corresponding to member is more than the area of the filter area corresponding to second sub-pixel unit.
2. liquid crystal display panel as described in claim 1, which is characterized in that operationally, first sub-pixel unit is first
It charges in second sub-pixel unit.
3. liquid crystal display panel as described in claim 1, which is characterized in that the liquid crystal display panel further includes：
DEMUX is switched, including data signal input mouth, at least two DEMUX control signal inputs mouths and at least two
Data signal output mouth, the data signal input mouth are connected with corresponding data cable, at least two data-signal
Output port is correspondingly connected with respectively at least two sub-pixel units；
DEMUX control signal generation circuits are inputted by least two scan lines at least two DEMUX control signals
Port is correspondingly connected with, for generating DEMUX control signals and being sent to by scan line the DEMUX control signals corresponding
DEMUX control signal input mouths, wherein,
The DEMUX control signals include being sent to the first control signal of first control signal input port and for sending out
The second control signal of second control signal input port is given, when showing assigned picture, is had in the first control signal
The voltage for imitating signal is more than the voltage of useful signal in the second control signal.
4. liquid crystal display panel as claimed in claim 3, which is characterized in that the switch includes first switch unit and second
Switch unit, wherein,
The control port of the first switch unit and second switch unit is respectively formed the first DEMUX of the DEMUX switches
Control signal input mouth and the 2nd DEMUX control signal input mouths, the first switch unit and second switch unit
First external-connected port is connected and forms the data signal input mouth of DEMUX switch, the first switch unit and second
Second external-connected port of switch unit is respectively formed the first data signal output mouth of the DEMUX switches and the second data letter
Number output port.
5. such as liquid crystal display panel according to any one of claims 1 to 4, which is characterized in that the picture element module further includes
3rd sub-pixel unit, the 3rd sub-pixel unit and the second sub-pixel unit are connected with same data cable, wherein, described
The area equation of the area of filter area corresponding to three sub-pixel units and the filter area corresponding to second sub-pixel unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442085.3A CN104965339B (en) | 2015-07-24 | 2015-07-24 | A kind of color filter and liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442085.3A CN104965339B (en) | 2015-07-24 | 2015-07-24 | A kind of color filter and liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104965339A CN104965339A (en) | 2015-10-07 |
| CN104965339B true CN104965339B (en) | 2018-05-29 |
Family
ID=54219378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510442085.3A Active CN104965339B (en) | 2015-07-24 | 2015-07-24 | A kind of color filter and liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104965339B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204217B (en) * | 2015-10-13 | 2018-05-01 | 武汉华星光电技术有限公司 | Liquid crystal display panel |
| CN107024794B (en) * | 2017-06-08 | 2020-06-09 | 厦门天马微电子有限公司 | Display panel and display device |
| CN109471288B (en) * | 2018-07-02 | 2021-10-29 | 惠科股份有限公司 | Display panel and method for manufacturing liquid crystal display panel |
| CN109559691B (en) | 2018-12-05 | 2020-12-29 | 惠科股份有限公司 | Display panel and display device |
| CN110706648B (en) * | 2019-09-23 | 2021-04-02 | 昆山国显光电有限公司 | Image display adjustment method and system and display panel |
| CN110928023A (en) * | 2019-11-26 | 2020-03-27 | 武汉华星光电技术有限公司 | Color film substrate and display panel |
| CN112991966B (en) * | 2020-04-26 | 2022-11-29 | 重庆康佳光电技术研究院有限公司 | Display back plate, display device and display back plate manufacturing method |
| CN111474763A (en) * | 2020-05-28 | 2020-07-31 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel and display device |
| CN111883061B (en) * | 2020-07-31 | 2021-06-08 | 维沃移动通信有限公司 | Pixel circuit, display device, electronic apparatus, and method for driving pixel circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920628A (en) * | 2006-09-12 | 2007-02-28 | 友达光电股份有限公司 | Liquid crystal display device and its driving method |
| CN201311532Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Color filter |
| CN101782697A (en) * | 2009-12-29 | 2010-07-21 | 信利半导体有限公司 | Color filter and LCD |
| CN102162950A (en) * | 2010-10-28 | 2011-08-24 | 友达光电股份有限公司 | Pixel unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100894643B1 (en) * | 2002-12-03 | 2009-04-24 | 엘지디스플레이 주식회사 | Data driving apparatus and method for liquid crystal display |
| KR100938101B1 (en) * | 2007-01-16 | 2010-01-21 | 삼성모바일디스플레이주식회사 | Organic Light Emitting Display |
-
2015
- 2015-07-24 CN CN201510442085.3A patent/CN104965339B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920628A (en) * | 2006-09-12 | 2007-02-28 | 友达光电股份有限公司 | Liquid crystal display device and its driving method |
| CN201311532Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Color filter |
| CN101782697A (en) * | 2009-12-29 | 2010-07-21 | 信利半导体有限公司 | Color filter and LCD |
| CN102162950A (en) * | 2010-10-28 | 2011-08-24 | 友达光电股份有限公司 | Pixel unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104965339A (en) | 2015-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104965339B (en) | A kind of color filter and liquid crystal display panel | |
| CN104992957B (en) | Array substrate, display panel and display device | |
| CN105810173B (en) | Multiplexing display driver circuit | |
| US10510315B2 (en) | Display panel, driving method thereof and display device | |
| CN106023928B (en) | Source drive module and liquid crystal display device | |
| CN106094380B (en) | Array substrate, display panel and liquid crystal display device | |
| CN104950543B (en) | A kind of DEMUX liquid crystal display panels and its driving method | |
| CN106531096A (en) | Driving method of RGBW four-primary-color display panel | |
| CN208189192U (en) | A kind of liquid crystal display device | |
| CN103399435B (en) | A kind of array base palte and display panels | |
| CN105869599B (en) | Array substrate, driving method thereof and display panel | |
| CN103389604B (en) | A kind of array base palte and display panels | |
| CN104505041A (en) | Driving method of pixel structure | |
| CN104503113A (en) | Liquid crystal display panel and display device | |
| US10692450B2 (en) | Display panel, display device, and driving method | |
| CN105427775B (en) | Display panel and electronic equipment | |
| CN101551979A (en) | Outdoor readable liquid crystal display device | |
| CN108279523A (en) | Display panel and display device | |
| CN106154668A (en) | Pixel driver system, liquid crystal display and image element driving method | |
| CN105427804A (en) | Display driving circuit and control method thereof, and display apparatus | |
| CN104570417A (en) | Liquid crystal display screen and electronic equipment | |
| CN107909979A (en) | Liquid crystal display device and the method for improving display panel power down splashette | |
| CN109283755A (en) | A kind of dot structure, pixel unit and display panel | |
| CN203054413U (en) | Array substrate, liquid crystal display panel and liquid crystal display | |
| WO2016061916A1 (en) | Liquid crystal display panel, driving structure thereof and driving method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |