CN109671407A - A kind of array substrate, display panel and display device - Google Patents
A kind of array substrate, display panel and display device Download PDFInfo
- Publication number
- CN109671407A CN109671407A CN201910032181.9A CN201910032181A CN109671407A CN 109671407 A CN109671407 A CN 109671407A CN 201910032181 A CN201910032181 A CN 201910032181A CN 109671407 A CN109671407 A CN 109671407A
- Authority
- CN
- China
- Prior art keywords
- sub
- active switch
- pixel unit
- pixel
- length ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a kind of array substrate, display panel and display devices, the array substrate includes multiple pixel units, each pixel unit includes corresponding the first sub-pixel unit of different colours, the second sub-pixel unit and third sub-pixel unit, and each first sub-pixel unit includes the first active switch；Each second sub-pixel unit includes the second active switch；Each third sub-pixel unit includes third active switch；The channel width-over-length ratio of the channel width-over-length ratio of first active switch, the channel width-over-length ratio of second active switch and the third active switch is different.This programme is inconsistent by setting at least two of which channel width-over-length ratio, refractive index is influenced to adjust the not same electric field of charging voltage to influence penetrance, so that the penetrance approach of the pixel with different thickness of liquid crystal layer is identical, and then improve the inconsistent phenomenon of the same grayscale penetrance of different colours pixel.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of array substrates, display panel and display device.
Background technique
With the fast development of multimedia technology, display panel also has tremendous progress, and user requires also increasingly
Height, display panel, by taking liquid crystal display panel as an example, liquid crystal display panel includes array substrate, color membrane substrates, backlight module, and is filled in
Liquid crystal layer between array substrate and color membrane substrates controls liquid by applying driving voltage in array substrate and color membrane substrates
The direction of rotation of brilliant molecule, to generate picture.
In some display panels, since the design structure of red sub-pixel, green sub-pixels and blue subpixels exists
Certain difference influences picture so that red sub-pixel, green sub-pixels and the corresponding penetrance of blue subpixels are inconsistent
Show color.
Summary of the invention
The object of the present invention is to provide a kind of array substrate, display panel and display devices, inconsistent to improve penetrance
The phenomenon that.
The invention discloses a kind of array substrate, including multiple pixel units, each pixel unit includes corresponding to not
With the first sub-pixel unit of color, the second sub-pixel unit and third sub-pixel unit, each first sub-pixel unit
Including the first active switch；Each second sub-pixel unit includes the second active switch；Each third sub-pixel list
Member includes third active switch；The channel width-over-length ratio of the channel width-over-length ratio of first active switch, second active switch
And the channel width-over-length ratio of the third active switch is different.
Optionally, first sub-pixel unit includes the first sub-pixel electricity being correspondingly arranged with first active switch
Pole, second sub-pixel unit include the second pixel electrode being correspondingly arranged with second active switch, the third
Sub-pixel unit includes the third pixel electrode being correspondingly arranged with the third active switch；When the first sub-pixel electricity
When pole, the second pixel electrode and third pixel electrode receive size identical gray scale voltage, first sub-pixel
The penetrance of electrode, the second pixel electrode and third pixel electrode is identical.
Optionally, the corresponding color of first sub-pixel unit is green, the corresponding face of second sub-pixel unit
Color is blue, and the corresponding color of the third sub-pixel unit is red.First sub-pixel unit includes and described first
The first pixel electrode that active switch is correspondingly arranged, second sub-pixel unit include corresponding with second active switch
The second pixel electrode being arranged, the third sub-pixel unit include third being correspondingly arranged with the third active switch
Pixel electrode, the channel width-over-length ratio of the third active switch are greater than the channel width-over-length ratio of first active switch, and described the
The channel width-over-length ratio of one active switch is greater than the channel width-over-length ratio of second active switch.
Optionally, the channel width-over-length ratio of first active switch be S1, S1=W1/L1, second active switch
Channel width-over-length ratio is S2, S2=W2/L2, and the channel width-over-length ratio of the third active switch is S3, S3=W3/L3, wherein described
The a length of L1 of the channel of first active switch, a length of L2 of channel of second active switch, the channel of the third active switch
A length of L3, wherein L1=L2=L3, the ditch road width of first active switch are W1, the ditch road width of second active switch
For W2, the ditch road width of the third active switch is W3, wherein W3 > W1 > W2.
The invention also discloses a kind of display panel, including first substrate and the second substrate, the second substrate with it is described
First substrate is opposed；The first substrate includes multiple pixel units, and each pixel unit includes corresponding different colours the
One sub-pixel unit, the second sub-pixel unit and third sub-pixel unit, each first sub-pixel unit include first
Active switch；Each second sub-pixel unit includes the second active switch；Each third sub-pixel unit includes the
Three active switches；The second substrate includes multiple color blocking units, and each color blocking unit includes and first sub-pixel
The first sub- color blocking that unit is correspondingly arranged, the second sub- color blocking being correspondingly arranged with second sub-pixel unit, and with it is described
The sub- color blocking of the third that third sub-pixel unit is correspondingly arranged；Wherein, the thickness of at least described second sub- color blocking is greater than described first
The thickness of sub- color blocking, corresponding, the channel width-over-length ratio of second active switch is less than the ditch road width of first active switch
Long ratio.
Optionally, when first sub-pixel unit, the second sub-pixel unit and third sub-pixel unit receive greatly
When small identical gray scale voltage, the first sub-pixel, the second sub-pixel of first sub-pixel unit and the first sub- color blocking composition
The second sub-pixel and third sub-pixel unit that unit and the second sub- color blocking are constituted and the third sub- picture that the sub- color blocking of third is constituted
The penetrance of element is identical.
Optionally, the thickness of the described second sub- color blocking is greater than the thickness of the described first sub- color blocking, the first sub- color blocking
Thickness is greater than the thickness of the sub- color blocking of the third；First sub-pixel unit includes being correspondingly arranged with first active switch
The first pixel electrode, second sub-pixel unit includes the second sub-pixel being correspondingly arranged with second active switch
Electrode, the third sub-pixel unit include the third pixel electrode being correspondingly arranged with the third active switch, and described
The channel width-over-length ratio of three active switches is greater than the channel width-over-length ratio of first active switch, the channel of first active switch
Breadth length ratio is greater than the channel width-over-length ratio of second active switch.
Optionally, the thickness range of the described first sub- color blocking is 1.2 microns to 3.2 microns, the thickness of the second sub- color blocking
Spending range is 1.6 microns to 3.6 microns, and the thickness range of the sub- color blocking of third is 1.0 microns to 3.0 microns, described first
The channel width-over-length ratio of active switch is S1, and the channel width-over-length ratio of second active switch is S2, the third active switch
Channel width-over-length ratio is S3, and following formula: 0.5% < (S1-S2)/S1 < 5% is met between S1 and S2；Under meeting between S1 and S3
The formula in face: 0.5% < (S3-S1)/S1 < 5%.
Optionally, the thickness range of the described first sub- color blocking is 2.0 microns to 2.4 microns, the thickness of the second sub- color blocking
Spending range is 2.4 microns to 2.8 microns, and the thickness range of the sub- color blocking of third is 1.8 microns to 2.2 microns, described first
The channel width-over-length ratio of active switch is S1, and the channel width-over-length ratio of second active switch is S2, the third active switch
Channel width-over-length ratio is S3, and following formula: 0.5% < (S1-S2)/S1 < 5% is met between S1 and S2；Under meeting between S1 and S3
The formula in face: 0.5% < (S3-S1)/S1 < 5%.
The invention also discloses a kind of display devices, including above-mentioned display panel.
For the scheme that thickness of liquid crystal layer difference causes penetrance inconsistent, since channel width-over-length ratio influences to charge
Rate, charge rate influences last charging voltage in turn, and then generates different electric fields, the deflection angle of the different control liquid crystal of electric field
Degree is different, reference formulaWherein T is penetrance, and d is thickness of liquid crystal layer (the i.e. box along light direction of travel
It is thick), Δ n is the refringence of long axis and short axle, and λ is the wavelength of incident light.The application passes through setting at least two of which channel
Breadth length ratio is inconsistent, so that the not same electric field for adjusting charging voltage influences refractive index to influence penetrance, so that having difference
The penetrance approach of the pixel of thickness of liquid crystal layer is identical, and then improves and adjust the inconsistent phenomenon of penetrance.
Detailed description of the invention
Included attached drawing is used to provide that a further understanding of the embodiments of the present application, and which constitute one of specification
Point, for illustrating presently filed embodiment, and with verbal description come together to illustrate the principle of the application.Under it should be evident that
Attached drawing in the description of face is only some embodiments of the present application, for those of ordinary skill in the art, is not paying wound
Under the premise of the property made is laborious, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of illustrative display panel structure figure；
Fig. 2 is a kind of corresponding voltage-penetrance curve graph of illustrative display panel structure；
Fig. 3 is the block diagram representation of the array substrate of one embodiment of the invention；
Fig. 4 is the schematic diagram of the pixel unit of one embodiment of the invention；
Fig. 5 is one embodiment of the invention voltage-penetrance curve schematic diagram；
Fig. 6 is the schematic diagram of the display device of one embodiment of the invention.
Wherein, 100, display device；110, display panel；120, array substrate；121, pixel unit；122, it actively opens
It closes；123, the first sub-pixel unit；124, the second sub-pixel unit；125, third sub-pixel unit；126, the first active switch；
127, the second active switch；128, third active switch；129, first substrate；130, the second substrate；131, substrate；132, first
Metal layer；133, gate insulating layer；134, passivation layer；135, transparent electrode layer；136, black matrix；137, color blocking unit；138,
Second sub- color blocking；139, the first sub- color blocking；140, the sub- color blocking of third.
Specific embodiment
It is to be appreciated that term used herein above, disclosed specific structure and function details, it is only for description
Specific embodiment is representative, but the application can be implemented by many alternative forms, be not construed as only
It is limited to the embodiments set forth herein.
In the description of the present application, term " first ", " second " are used for description purposes only, and it is opposite to should not be understood as instruction
Importance, or implicitly indicate the quantity of indicated technical characteristic.As a result, unless otherwise indicated, " first ", " are defined
Two " feature can explicitly or implicitly include one or more of the features；The meaning of " plurality " is two or two
More than.Term " includes " and its any deformation, mean and non-exclusive include, it is understood that there may be or addition is one or more that other are special
Sign, integer, step, operation, unit, component and/or combination thereof.
In addition, "center", " transverse direction ", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner",
The term of the orientation or positional relationship of the instructions such as "outside" is that orientation or relative positional relationship based on the figure describe, only
Be that the application simplifies description for ease of description, rather than indicate signified device or element must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
Furthermore unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " shall be understood in a broad sense, example
Such as it may be fixed connection or may be dismantle connection, or integral connection；It can be mechanical connection, be also possible to be electrically connected
It connects；It can be directly connected, it can also indirectly connected through an intermediary or the connection inside two elements.For ability
For the those of ordinary skill in domain, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
Fig. 1 is a kind of schematic diagram of illustrative display panel structure figure, and Fig. 2 is a kind of illustrative display panel structure
Corresponding voltage-penetrance curve graph, with reference to Fig. 1 and Fig. 2, the display panel includes first substrate 129 and the second substrate
130, the first substrate 129 and 130 opposite side of the second substrate are arranged.The first substrate 129 such as array substrate 120,
Such as color membrane substrates of the second substrate 130, the first substrate 129 include substrate 131, and the is provided on the substrate 131
One metal layer 132 is provided with gate insulating layer 133 on the first metal layer 132, is provided on the gate insulating layer 133
Passivation layer 134 is provided with transparent electrode layer 135 on the passivation layer 134, is coated with alignment liquid in the upper surface of first substrate.
The second substrate 130 includes black matrix 136, is provided with color blocking 137 in the black matrix 136, is provided in the color blocking 137
Transparent electrode layer 135 is coated with alignment liquid on the transparent electrode layer 135.The color blocking 137 includes blue color blocking 138, green
Color blocking 139 and red color resistance 140, the blue color blocking with a thickness of 2.6 microns (μm), the green color blocking with a thickness of 2.2 μ
M, the red color resistance with a thickness of 2.0 μm, wherein the thickness of the corresponding black matrix of different colours color blocking layer is equal, and is all
1.1μm.Illustrative thickness of liquid crystal layer (Cell Gap) refers to the thickness of liquid crystal layer by taking green color blocking as an example.Red color
Resistance, green color blocking and the corresponding thickness of liquid crystal layer of blue color blocking are different, and wherein the thickness of liquid crystal layer of red color resistance is maximum.It is different
The thickness of liquid crystal layer difference of the color blocking layer of color causes each grayscale penetrance different, therefore generates the white point coordinates for leading to each grayscale
It is inconsistent, it obtains being the inconsistent curve of rgb pixel voltage penetration rate such as Fig. 2, wherein abscissa is voltage value, and ordinate is
The value of penetrance.
Fig. 3 is the block diagram representation of the array substrate of one embodiment of the invention；Fig. 4 is the pixel of one embodiment of the invention
The schematic diagram of unit；Fig. 5 is the schematic diagram of one embodiment of the invention voltage penetration rate curve；With reference to Fig. 3, Fig. 4 and Fig. 5.Its
In, in Fig. 5, Tr-R is the voltage penetration rate curve of corresponding red sub-pixel, and Tr-G is the voltage penetration of corresponding green sub-pixels
Rate curve, Tr-B are the voltage penetration rate curves of corresponding blue subpixels.The first substrate 129 can be with combined with Figure 1 and Figure 2,
It is array substrate 120, the second substrate 130 can be color membrane substrates, and the array substrate 120 includes multiple pixel units 121, often
A pixel unit 121 includes the first sub-pixel unit 123, the second sub-pixel unit 124 and third sub-pixel unit
125, each first sub-pixel unit 123 includes the first active switch 126；Each second sub-pixel unit 124 wraps
Include the second active switch 127；Each third sub-pixel unit 125 includes third active switch 128；First active is opened
Close 126 channel width-over-length ratio, the ditch of the channel width-over-length ratio of second active switch 127 and the third active switch 128
In road breadth length ratio, at least two of which channel width-over-length ratio is different.
Specifically, the ditch road width of the channel width-over-length ratio of first active switch 126, second active switch 127 is long
Than and the third active switch 128 channel width-over-length ratio it is different.By adjust three channel width-over-length ratios difference, three
The charging voltage of a sub-pixel unit reaches unanimity.
Although thickness of liquid crystal layer difference will lead to, penetrance is inconsistent, can pass through the charging feelings of corresponding active switch
Condition compensates.Since the channel width-over-length ratio of active switch influences charge rate, charge rate influences last charging voltage in turn, into
And different electric fields is generated, the deflection angle of the different control liquid crystal of electric field is different, reference formulaWherein T
For penetrance, d is the thickness of liquid crystal layer (i.e. box is thick) along light direction of travel, and Δ n is the refringence of long axis and short axle, and λ is
The wavelength of incident light；Channel width-over-length ratio by setting at least two of which even three active switches is inconsistent, to adjust
The not same electric field of charging voltage influences refractive index to influence penetrance, so that the pixel with different thickness of liquid crystal layer penetrates
Rate approach is identical, and then improves and adjust the inconsistent phenomenon of penetrance.Wherein, thickness of liquid crystal layer is not both due to array substrate
Caused by different with the spacing of color membrane substrates, specifically, the corresponding thickness of liquid crystal layer difference of each sub-pixel unit can be by
In red sub-pixel, green sub-pixels, the thickness difference of corresponding each tunic thickness causes with blue subpixels, such as the thickness of color blocking
The thickness of difference or transparent electrode layer is different and causes.
Specifically, first sub-pixel unit 123 includes the first son being correspondingly arranged with first active switch 126
Pixel electrode, second sub-pixel unit 124 include the second sub-pixel electricity being correspondingly arranged with second active switch 127
Pole, the third sub-pixel unit 125 include the third pixel electrode being correspondingly arranged with the third active switch 128；When
First pixel electrode, the second pixel electrode and third pixel electrode receive the identical gray scale voltage of size
When, the penetrance of first pixel electrode, the second pixel electrode and third pixel electrode is identical or close to identical,
So that the penetrance of the first pixel electrode, the second pixel electrode and third pixel electrode is identical, thus the first sub- picture
The voltage penetration rate curve overlapping of plain electrode, the second pixel electrode and third pixel electrode is consistent, liquid crystal display image
The white point balance of each grayscale is consistent, is conducive to the color performance for improving display panel and display effect.
Corresponding, the color membrane substrates include multiple color blocking units, and each color blocking unit includes and first son
The corresponding first sub- color blocking of pixel electrode, the second sub- color blocking corresponding with second pixel electrode and with third
The sub- color blocking of the corresponding third of pixel electrode, the thickness of the second sub- color blocking are greater than the thickness of the described first sub- color blocking, and described the
The thickness of one sub- color blocking is greater than the thickness of the sub- color blocking of the third.Fig. 4 shows a kind of structure of specific active switch,
In, W is the ditch road width of active switch 122, and L is the ditch road length of active switch 122.The corresponding color of first sub-pixel unit
For green, the corresponding color of second sub-pixel unit is blue, and the corresponding color of the third sub-pixel unit is red；
The channel width-over-length ratio W1/L1 of first active switch, the channel width-over-length ratio W2/L2 of second active switch, the third
The channel width-over-length ratio W3/L3 of active switch, wherein W3/L3 > W1/L1 > W2/L2.
Particularly, when the corresponding thickness of liquid crystal layer of the first pixel electrode is greater than the corresponding liquid of second pixel electrode
Crystal layer thickness, and when thickness of liquid crystal layer corresponding less than third pixel electrode, at this point, under the driving of identical gray scale voltage,
When finally charging voltage is identical, the corresponding penetrance of the first pixel electrode can be worn greater than third pixel electrode is corresponding
Saturating rate, meanwhile, penetrance corresponding less than the second pixel electrode；Third corresponding with third pixel electrode is set at this time actively
The channel width-over-length ratio W3/L3 of switch is maximum, the channel width-over-length ratio W1/L1 of corresponding first active switch of the first pixel electrode compared with
Small, the channel width-over-length ratio W2/L2 of corresponding second active switch of the second pixel electrode is minimum, due to the big charging of channel width-over-length ratio
Rate is fast, so that the final charging electricity that the first pixel electrode, the second pixel electrode and third pixel electrode reach
Pressure technicality (final charging voltage be respectively less than is equal to gray scale voltage), such as the final charging voltage of the first pixel electrode is
V1, the final charging voltage of the second pixel electrode are V2, and the final charging voltage of third pixel electrode is V3, then V3 > V1
> V2, in this way, the final maximum V3 of charging voltage then compensates for the lower problem of the penetrance as brought by thickness, and it is final
The smallest V2 of charging voltage then has adjusted by the higher problem of the brought penetrance of thickness, so that the first sub-pixel is electric
The penetrance of pole, the second pixel electrode and third pixel electrode reaches unanimity, even more so that different subpixel electrode is worn
Saturating rate is identical, improves the inconsistent situation of the white point balance of each grayscale of liquid crystal display image, and display image has color true to nature
Performance.
The channel width-over-length ratio of active switch is arranged different, can only change channel by the way that the length of channel is arranged is constant
Width, a length of L1 of channel of first active switch, a length of L2 of channel of second active switch, the third active switch
The a length of L3 of channel, wherein L1=L2=L3, the ditch road width of first active switch are W1, second active switch
Ditch road width is W2, and the ditch road width of the third active switch is W3, wherein W3 > W1 > W2.In the channel of the first active switch
In long, the ditch road length of the second active switch and third active switch all identical situation of ditch road length, setting third is actively opened
The ditch road width W3 of pass is maximum, and greater than the ditch road width W1 of the first active switch, the ditch road width W2 of the second active switch is minimum, to meet
W3/L3>W1/L1>W2/L2.Certainly, the ditch road width that active switch is arranged is all equal, W1=W2=W3, so that L2 > L1 > L3
It is possible.In addition, adjusting ditch road length and ditch road width simultaneously is all possible, while ditch road length and ditch road width are adjusted relative to only
It adjusts for ditch road length or the only scheme of adjusting ditch road width, two are adjusted simultaneously, and ditch road length and ditch road width can be not provided with
It is so big, it is possible to reduce shared space, to save cost.
It is as follows, with red sub-pixel, green sub-pixels and the corresponding red color resistance of blue subpixels, green color blocking and blue
Thickness of liquid crystal layer caused by the thickness difference of color blocking is a specific example, is further elaborated:
The display panel includes first substrate 129 and the second substrate 130, the first substrate 129 and second base
Plate 130 is opposed, and the first substrate 129 includes multiple pixel units, and each pixel unit includes corresponding different colours the
One sub-pixel unit, the second sub-pixel unit and third sub-pixel unit, each first sub-pixel unit include first
Active switch；Each second sub-pixel unit includes the second active switch；Each third sub-pixel unit includes the
Three active switches；The second substrate 130 includes multiple color blocking units 137, and each color blocking unit 137 includes and described the
The first sub- color blocking 139 that one sub-pixel unit is correspondingly arranged and the second sub- color blocking that second sub-pixel unit is correspondingly arranged
138, and with the sub- color blocking 140 of third that the third sub-pixel unit is correspondingly arranged.Wherein, at least described second sub- color blocking
138 thickness is greater than the thickness of the described first sub- color blocking 138, and corresponding, the channel width-over-length ratio of second active switch is less than
The channel width-over-length ratio of first active switch.
The first substrate is, for example, array substrate, and the second substrate is, for example, color membrane substrates, certain color blocking list
Member can also be arranged in array substrate (Color Filter on Array, COA) technology first using colored filter setting
On substrate.By taking color blocking unit is arranged in the second substrate as an example, the thickness of the described second sub- color blocking of the second substrate side is greater than institute
The thickness of the first sub- color blocking is stated, so that the public electrode and array substrate of each color blocking cell surface of setting the second substrate
Each sub-pixel unit between thickness of liquid crystal layer it is different, the application passes through the corresponding active switch of setting at least two of which
Channel width-over-length ratio it is inconsistent, reference formulaRefraction is influenced to adjust the not same electric field of charging voltage
Rate is to influence penetrance, so that the penetrance of the sub-pixel unit with different thickness of liquid crystal layer (box is thick different in other words) becomes
It is close identical, and then improve and adjust each sub-pixel unit inconsistent phenomenon of penetrance under same gray level voltage.
In one embodiment, when first sub-pixel unit, the second sub-pixel unit and third sub-pixel unit connect
When receiving the identical gray scale voltage of size, the first sub-pixel that first sub-pixel unit and the first sub- color blocking are constituted, second
The second sub-pixel and third sub-pixel unit and the sub- color blocking of third that sub-pixel unit and the second sub- color blocking are constituted constitute the
The penetrance of three sub-pixels is identical.It, will be so that the when the first sub- color blocking, the thickness difference of the second sub- color blocking and the sub- color blocking of third
Corresponding thickness of liquid crystal layer is different with third sub-pixel unit for one sub-pixel unit, the second sub-pixel unit, and same gray level is electric
Pressure, thickness of liquid crystal layer are different, and the case where by the penetrance difference for bringing each sub-pixel unit, this programme is then according to the first son
Color blocking, the thickness of the second sub- color blocking and the sub- color blocking of third are different, it is corresponding adjust the first sub-pixel unit, the second sub-pixel unit and
The channel ratio of the active switch of third sub-pixel unit to compensate the different situation of penetrance, and makes three sub-pixel units
When receiving identical gray scale voltage, corresponding penetrate is reached unanimity or equal, to improve the bad situation of white point balance.
In one embodiment, the thickness of the described second sub- color blocking is greater than the thickness of the described first sub- color blocking, first son
The thickness of color blocking is greater than the thickness of the sub- color blocking of the third；First sub-pixel unit includes and first active switch pair
The first pixel electrode that should be arranged, second sub-pixel unit include second be correspondingly arranged with second active switch
Pixel electrode, the third sub-pixel unit include the third pixel electrode being correspondingly arranged with the third active switch,
The channel width-over-length ratio W1/L1 of first active switch, the channel width-over-length ratio W2/L2 of second active switch, the third
The channel width-over-length ratio W3/L3 of active switch, wherein W3/L3 > W1/L1 > W2/L2.
First sub- color blocking such as green color blocking, the second sub- color blocking such as blue color blocking, the sub- color blocking of third such as red color resistance,
The thickness of first sub- color blocking is greater than the thickness of the sub- color blocking of third, while less than the thickness of the second sub- color blocking, at this point, the first sub-pixel
Electrode corresponds to thickness of liquid crystal layer and corresponds to thickness of liquid crystal layer, simultaneously greater than pair of the second pixel electrode less than third pixel electrode
Answer thickness of liquid crystal layer, then under same gray level voltage, red sub-pixel, green sub-pixels and blue subpixels it is final charging electricity
Press also identical, corresponding voltage penetration rate curve such as Fig. 2；W3/L3 > W1/L1 > W2/L2 is arranged in this programme, by the way that three ditches are arranged
Road breadth length ratio is inconsistent, so that the not same electric field for adjusting charging voltage influences refractive index to influence penetrance, so that the
The penetrance of one pixel electrode, the second pixel electrode and third pixel electrode reaches unanimity, even more so that different sub- pictures
The penetrance of plain electrode is identical, improves the inconsistent situation of the white point balance of each grayscale of liquid crystal display image, is conducive to improve aobvious
Show the color performance and display effect of panel.
In one embodiment, the thickness range of the described first sub- color blocking is 1.2 microns to 3.2 microns, the second sub- color
The thickness range of resistance is 1.6 microns to 3.6 microns, and the thickness range of the sub- color blocking of third is 1.0 microns to 3.0 microns.Tool
Body, the first sub- color blocking with a thickness of 2.2 microns, the second sub- color blocking with a thickness of 2.6 microns, the sub- color of third
Resistance with a thickness of 2.0 microns, therefore, the thickness of liquid crystal layer at corresponding first sub- color blocking, the second sub- color blocking and the sub- color blocking of third
There are corresponding difference, the channel width-over-length ratio of first active switch is S1, and the channel width-over-length ratio of second active switch is
S2, the channel width-over-length ratio of the third active switch are S3.Wherein, 0.5% < (S1-S2)/S1 < 5% is met between S1 and S2
Relationship meets 0.5% < (S3-S1)/S1 < 5% between S1 and S3.For example, corresponding S3 is that 31.5, S2 is when S1 is 30
28.5；Or when S1 is 100, corresponding S3 is 105, S2 95.The value of S1 and S2 is different, the relation extents between S1 and S2
For greater than 0.5% and less than 5%, similarly, the relation extents between S1 and S3 are finally to make greater than 0.5% and less than 5%
The ratio of S1, S2 and S3 are fallen between ± 5%.The corresponding ratio of the channel width-over-length ratio of different active switches falls in this range
It is inside all possible, being not limited to adjustment W or L, W and L is the one of factor for influencing channel width-over-length ratio.It is optional
, in the range of fabrication errors, the thickness range of the first sub- color blocking is 2.0 microns to 2.4 microns, the second sub- color
The thickness range of resistance is 2.4 microns to 2.8 microns, and the thickness range of the sub- color blocking of third is 1.8 microns to 2.2 microns.
Poor according to different thickness of liquid crystal layer, the channel width-over-length ratio S1 of first active switch is opened with second active
The ratio range of difference between the channel width-over-length ratio S2 of pass is 0-10%, such as can be 5%, first active switch
The ratio range of difference between channel width-over-length ratio S1 and the channel width-over-length ratio S3 of the third active switch is 0-10%, such as
It can be 5%, practical value is determined according to penetrance difference brought by the corresponding thickness of liquid crystal layer of each pixel electrode,
It is excessive with gray scale voltage gap to avoid final charging voltage and bring shows undesirable ask but generally no more than 10%
Topic, i.e. the ratio value of difference, which is subject to, to be adjusted so that the corresponding voltage penetration rate curve of three pixel electrodes reaches unanimity.
For example, the channel width-over-length ratio W1/L1 of first active switch is 1, the ditch road width of second active switch is long
It is 0.95 than W2/L2, the channel width-over-length ratio W3/L3 of the third active switch is 1.05.The ditch road width of first active switch is long
It is set as 1 than W1/L1, the setting of above-mentioned channel width-over-length ratio is an example, but does not represent channel width-over-length ratio of the invention only
It can be arranged in this way, but can be according under different display panels and different display frameworks, setting channel width-over-length ratio is also different, channel
Subject to the voltage penetration rate curve for being configured so that three pixel electrodes of breadth length ratio reaches unanimity.
The channel shape of the channel of first active switch, the channel of the second active switch and third active switch can
To be identical.Relative to by the ditch of the channel of the first active switch, the channel of the second active switch and third active switch
For the variform scheme in road, the channel of active switch is easy to accomplish in manufacture craft, and shape is identical can be to channel
Long or width is finely adjusted, and reduces itself bring error between three different active switches.Certainly, by the ditch of three active switches
The shape that road shape is set as different is also possible, and the channel of active switch corresponds to different shapes, and diversity factor is larger.Such as
The shape of the channel of the channel of first active switch, the channel of the second active switch and third active switch is all U-shaped, so that
Ditch road width and long adjustable extent are big, and area occupied is small.The shape of certain channel may be arranged as I type, and the shape of channel is all
Be set as I type, to channel length and width be adjusted when, can be finely adjusted, reduce error so that adjusting more accurate.
Fig. 6 is the schematic diagram of the display device of one embodiment of the invention, as shown in fig. 6, disclosing a kind of display device
100, the display device includes above-mentioned display panel 110, and the display panel 110 includes above-mentioned array substrate 120.
Technical solution of the present invention can be widely applied to various display panels, such as twisted nematic (Twisted
Nematic, TN) display panel, plane conversion type (In-Plane Switching, IPS) display panel, vertical orientation type
(Vertical Alignment, VA) display panel, more quadrant vertical orientation type (Multi-Domain Vertical
Alignment, MVA) display panel, it is of course also possible to be other kinds of display panel, such as Organic Light Emitting Diode
(Organic Light-Emitting Diode, OLED) display panel, applicable above scheme.
The above content is combine specific optional embodiment further detailed description of the invention, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of array substrate, which is characterized in that the array substrate includes: multiple pixel units, each pixel unit
Including corresponding the first sub-pixel unit of different colours, the second sub-pixel unit and third sub-pixel unit, each described first
Sub-pixel unit includes the first active switch；Each second sub-pixel unit includes the second active switch；Each described
Three sub-pixel units include third active switch；
The channel width-over-length ratio of first active switch, the channel width-over-length ratio of second active switch and the third are actively
The channel width-over-length ratio of switch is different.
2. a kind of array substrate as described in claim 1, which is characterized in that first sub-pixel unit includes and described the
The first pixel electrode that one active switch is correspondingly arranged, second sub-pixel unit include and second active switch pair
The second pixel electrode that should be arranged, the third sub-pixel unit include the third being correspondingly arranged with the third active switch
Pixel electrode；
When first pixel electrode, the second pixel electrode and third pixel electrode receive the identical grayscale of size
When voltage, the penetrance of first pixel electrode, the second pixel electrode and third pixel electrode is identical.
3. a kind of array substrate as described in claim 1, which is characterized in that the corresponding color of first sub-pixel unit is
Green, the corresponding color of second sub-pixel unit are blue, and the corresponding color of the third sub-pixel unit is red；
First sub-pixel unit includes the first pixel electrode being correspondingly arranged with first active switch, and described second
Sub-pixel unit includes the second pixel electrode being correspondingly arranged with second active switch, the third sub-pixel unit packet
The third pixel electrode being correspondingly arranged with the third active switch is included, the channel width-over-length ratio of the third active switch is greater than
The channel width-over-length ratio of the channel width-over-length ratio of first active switch, first active switch is greater than second active switch
Channel width-over-length ratio.
4. a kind of array substrate as claimed in claim 3, which is characterized in that the channel width-over-length ratio of first active switch is
S1, S1=W1/L1, the channel width-over-length ratio of second active switch are S2, S2=W2/L2, the ditch of the third active switch
Road breadth length ratio is S3, S3=W3/L3, wherein a length of L1 of channel of first active switch, the ditch of second active switch
Road length is L2, a length of L3 of channel of the third active switch, wherein L1=L2=L3, the channel of first active switch
Width is W1, and the ditch road width of second active switch is W2, and the ditch road width of the third active switch is W3, wherein W3 > W1
> W2.
5. a kind of display panel characterized by comprising
First substrate；
The second substrate, it is opposed with the first substrate；
The first substrate includes: multiple pixel units, and each pixel unit includes corresponding the first sub-pixel of different colours
Unit, the second sub-pixel unit and third sub-pixel unit, each first sub-pixel unit include the first active switch；
Each second sub-pixel unit includes the second active switch；Each third sub-pixel unit includes that third is actively opened
It closes；
The second substrate includes: multiple color blocking units, and each color blocking unit includes:
First sub- color blocking is correspondingly arranged with first sub-pixel unit；
Second sub- color blocking is correspondingly arranged with second sub-pixel unit；And
The sub- color blocking of third is correspondingly arranged with the third sub-pixel unit；
Wherein, the thickness of at least described second sub- color blocking is greater than the thickness of the described first sub- color blocking, corresponding, and described second actively
The channel width-over-length ratio of switch is less than the channel width-over-length ratio of first active switch.
6. a kind of display panel as claimed in claim 5, which is characterized in that when first sub-pixel unit, the second sub- picture
When plain unit and third sub-pixel unit receive size identical gray scale voltage, first sub-pixel unit and the first son
The second sub-pixel and third sub-pixel that the first sub-pixel, the second sub-pixel unit and the second sub- color blocking that color blocking is constituted are constituted
The penetrance for the third sub-pixel that the sub- color blocking of unit and third is constituted is identical.
7. a kind of display panel as claimed in claim 5, which is characterized in that the thickness of the second sub- color blocking is greater than described the
The thickness of one sub- color blocking, the thickness of the first sub- color blocking are greater than the thickness of the sub- color blocking of the third；
First sub-pixel unit includes the first pixel electrode being correspondingly arranged with first active switch, and described second
Sub-pixel unit includes the second pixel electrode being correspondingly arranged with second active switch, the third sub-pixel unit packet
The third pixel electrode being correspondingly arranged with the third active switch is included, the channel width-over-length ratio of the third active switch is greater than
The channel width-over-length ratio of the channel width-over-length ratio of first active switch, first active switch is greater than second active switch
Channel width-over-length ratio.
8. a kind of display panel as claimed in claim 7, which is characterized in that the thickness range of the first sub- color blocking is 1.2
Micron is to 3.2 microns, and the thickness range of the second sub- color blocking is 1.6 microns to 3.6 microns, the thickness of the sub- color blocking of third
Range is 1.0 microns to 3.0 microns, and the channel width-over-length ratio of first active switch is S1, the ditch of second active switch
Road breadth length ratio is S2, and the channel width-over-length ratio of the third active switch is S3, and following formula is met between S1 and S2:
0.5% < (S1-S2)/S1 < 5%；
Meet following formula between S1 and S3:
0.5% < (S3-S1)/S1 < 5%.
9. a kind of display panel as claimed in claim 7, which is characterized in that the thickness range of the first sub- color blocking is 2.0
Micron is to 2.4 microns, and the thickness range of the second sub- color blocking is 2.4 microns to 2.8 microns, the thickness of the sub- color blocking of third
Range is 1.8 microns to 2.2 microns, and the channel width-over-length ratio of first active switch is S1, the ditch of second active switch
Road breadth length ratio is S2, and the channel width-over-length ratio of the third active switch is S3；
Wherein, following formula is met between S1 and S2:
0.5% < (S1-S2)/S1 < 5%；
Meet following formula between S1 and S3:
0.5% < (S3-S1)/S1 < 5%.
10. a kind of display device, which is characterized in that including the display panel as described in claim 5 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910032181.9A CN109671407B (en) | 2019-01-14 | 2019-01-14 | Array substrate, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910032181.9A CN109671407B (en) | 2019-01-14 | 2019-01-14 | Array substrate, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109671407A true CN109671407A (en) | 2019-04-23 |
| CN109671407B CN109671407B (en) | 2020-12-29 |
Family
ID=66149545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910032181.9A Active CN109671407B (en) | 2019-01-14 | 2019-01-14 | Array substrate, display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109671407B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003091017A (en) * | 2001-09-19 | 2003-03-28 | Casio Comput Co Ltd | Color liquid crystal display device |
| US20030090603A1 (en) * | 2001-10-29 | 2003-05-15 | Lg.Philips Lcd Co., Ltd. | Substrate structure of a liquid crystal display device |
| TW200719064A (en) * | 2005-11-11 | 2007-05-16 | Innolux Display Corp | Liquid crystal display panel |
| CN102508386A (en) * | 2011-11-28 | 2012-06-20 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN104656334A (en) * | 2015-03-20 | 2015-05-27 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN106531745A (en) * | 2016-11-21 | 2017-03-22 | 武汉华星光电技术有限公司 | Thin film transistor array substrate and liquid crystal panel |
| CN106773239A (en) * | 2016-11-28 | 2017-05-31 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN106918950A (en) * | 2017-05-12 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of display base plate and display device |
| CN106990634A (en) * | 2017-05-20 | 2017-07-28 | 武汉华星光电技术有限公司 | Display pixel structure, array base palte and display device |
-
2019
- 2019-01-14 CN CN201910032181.9A patent/CN109671407B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003091017A (en) * | 2001-09-19 | 2003-03-28 | Casio Comput Co Ltd | Color liquid crystal display device |
| US20030090603A1 (en) * | 2001-10-29 | 2003-05-15 | Lg.Philips Lcd Co., Ltd. | Substrate structure of a liquid crystal display device |
| TW200719064A (en) * | 2005-11-11 | 2007-05-16 | Innolux Display Corp | Liquid crystal display panel |
| CN102508386A (en) * | 2011-11-28 | 2012-06-20 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN104656334A (en) * | 2015-03-20 | 2015-05-27 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN106531745A (en) * | 2016-11-21 | 2017-03-22 | 武汉华星光电技术有限公司 | Thin film transistor array substrate and liquid crystal panel |
| CN106773239A (en) * | 2016-11-28 | 2017-05-31 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN106918950A (en) * | 2017-05-12 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of display base plate and display device |
| CN106990634A (en) * | 2017-05-20 | 2017-07-28 | 武汉华星光电技术有限公司 | Display pixel structure, array base palte and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109671407B (en) | 2020-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9817282B2 (en) | Liquid crystal display | |
| CN105911776B (en) | Liquid crystal display device with a light guide plate | |
| US10048529B2 (en) | Color filter substrate and liquid crystal display device | |
| JP5068886B2 (en) | Liquid crystal panel and liquid crystal display device | |
| CN100510860C (en) | In-plane switching mode liquid crystal display device with adjustable viewing angle and method for fabricating the same | |
| CN106873258B (en) | Liquid crystal display device with a light guide plate | |
| CN104035246B (en) | Liquid crystal display | |
| CN101750779A (en) | Liquid ctystal display device | |
| CN105319784B (en) | Display panel | |
| US9472581B2 (en) | Display device | |
| KR20110046125A (en) | Liquid crystal display | |
| US9995972B2 (en) | Display device | |
| CN109283756A (en) | Multidomain liquid crystal display | |
| US9459499B2 (en) | Liquid crystal display | |
| CN100399164C (en) | In-plane switching mode liquid crystal display device and fabrication method thereof | |
| US7830345B2 (en) | Liquid crystal display device | |
| CN109343266A (en) | Display panel and display device | |
| US20160291409A1 (en) | Liquid crystal display including pixel and auxiliary electrodes within display substrate | |
| US9529231B2 (en) | Liquid crystal display | |
| US20120008074A1 (en) | Liquid crystal panel, method for manufacturing same, and liquid crystal display device | |
| CN209215825U (en) | Display panel and display device | |
| JP6727891B2 (en) | Display panel | |
| US20160195783A1 (en) | Liquid crystal display | |
| US11487168B2 (en) | Liquid crystal panel and display device | |
| KR20170024210A (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |