CN104835830B - A kind of OLED substrate for display and display device - Google Patents
A kind of OLED substrate for display and display device Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 111
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- 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
- G02F1/29—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 position or the direction of light beams, i.e. deflection
- G02F1/33—Acousto-optical deflection devices
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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Abstract
The present invention provides a kind of OLED substrate for display and display devices, are related to display technology field, and it is complicated big with power consumption to solve the problems, such as that existing OLED display adjusts the driving that chromaticity coordinates or white balance drive other sub-pixes to bring.A kind of OLED substrate for display, including chromatic filter layer, chromatic filter layer includes the filter pattern of at least four different colours, wherein, substrate for display is formed with red filter pattern at the position of corresponding first sub-pix, it is formed with green filter pattern at the position of corresponding second sub-pix, it is formed with blue filter pattern at the position of corresponding third sub-pix, it is formed with white filter pattern at the position of corresponding 4th sub-pix, and except white, the filter pattern of other at least one colors except black, and except white, the sum of light emission luminance of filter pattern of other colors except black is not more than the 20% of the 4th sub-pix light emission luminance.
Description
Technical field
The present invention relates to display technology field more particularly to a kind of OLED substrate for display and display devices.
Background technology
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) display has been widely used for
Display technology field.The basic structure of OLED display includes anode, light emitting functional layer and cathode, wherein light emitting functional layer is adopted
It is formed with luminous organic material.
OLED realizes that colored display is generally realized by two ways：It is color one is being combined using white-light organic light-emitting material
Colo(u)r filter realizes colored display；Another kind is the luminous organic material shape using fine metal mask plate vapor deposition different base colors
Colored display is realized at colored sub-pix.
Wherein, in being realized by the way of colored display using white-light organic light-emitting material combination colored filter, generally
Raising brightness and display validity, through forming red, green, blue, Bai Sise sub-pixes frequently with white light cooperation colored filter.But
Be, OLED display device (mainly white-light organic light-emitting material) with the variation of operating voltage and electric current, display panel
Chromaticity coordinates or colour temperature change.Wherein, colour temperature is high, then blue component is high, and color representation is colder；Conversely, colour temperature is low, then it is red
Ingredient is high, and color representation is partially warm, and image quality quality is influenced when chromaticity coordinates or serious color temperature change.
In order to adjust the stability of chromaticity coordinates or colour temperature, may be used in drive control end such as movement chip or timing control
When pixel is displayed in white, not only white sub-pix is shown circuit, red sub-pixel, green sub-pixels, blue subpixels or its
In arbitrarily combine and meanwhile show, to adjust the chromaticity coordinates or white balance when pixel is displayed in white.But this method is on the one hand
It needs to be calculated using complicated algorithm according to the viewing angle of human eye, on the other hand will cause being significantly increased for power consumption.
Invention content
A kind of OLED substrate for display of the embodiment of the present invention offer and display device, the OLED substrate for display is right
It answers and is formed with white filter pattern at the position of the 4th sub-pix and except other at least one colors white, in addition to black
Filter pattern, on the one hand, the sum of light emission luminance of filter pattern of other colors in addition to white, black is sub- no more than the 4th
The 20% of pixel light emission brightness, can be to avoid display color exception；Another aspect pixel is when the 4th sub-pix is individually shown, together
When be displayed in white and except white, the color of the filter pattern of other colors in addition to black, pixel can be adjusted and be displayed in white
When chromaticity coordinates or white balance, avoid drive other sub-pixes to carry out driving that display is brought is complicated and power consumption is big asks
Topic.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
On the one hand, an embodiment of the present invention provides a kind of OLED substrate for display, are applied to OLED display, described aobvious
Showing device includes multiple pixels, and each pixel includes：First sub-pix, the second sub-pix, third sub-pix and the 4th are sub-
Pixel, the substrate for display include chromatic filter layer, and the chromatic filter layer includes the optical filtering figure of at least four different colours
Case, wherein the substrate for display is formed with red filter pattern at the position of correspondence first sub-pix, in corresponding institute
It states and is formed with green filter pattern at the position of the second sub-pix, blue is formed at the position of the correspondence third sub-pix
Filter pattern is formed with white filter pattern and in addition to white, black at the position of correspondence the 4th sub-pix
The filter pattern of other at least one colors, and the luminance of the filter pattern of other colors in addition to white, black
The sum of degree is not more than the 20% of the 4th sub-pix light emission luminance.
On the other hand, an embodiment of the present invention provides a kind of OLED display, including array substrate and package substrate, institutes
It is any substrate for display provided in an embodiment of the present invention to state array substrate, and the array substrate further includes：First lining
Bottom and the tft array being formed on first substrate, pixel defining layer, first electrode, second electrode and it is formed in institute
State the light emitting functional layer between first electrode and the second electrode, wherein TFT includes：Grid, gate insulating layer, active layer,
Source electrode and drain electrode, the first electrode are electrically connected with the source electrode or the drain electrode.
In another aspect, an embodiment of the present invention provides a kind of OLED display, including array substrate and package substrate, institute
It is any substrate for display provided in an embodiment of the present invention to state package substrate；The array substrate further includes：First lining
Bottom and the tft array being formed on first substrate, pixel defining layer, first electrode, second electrode and it is formed in institute
State the light emitting functional layer between first electrode and the second electrode, wherein TFT includes：Grid, gate insulating layer, active layer,
Source electrode and drain electrode, the first electrode are electrically connected with the source electrode or the drain electrode.
A kind of OLED substrate for display of the embodiment of the present invention offer and display device, the OLED substrate for display is right
It answers and is formed with white filter pattern at the position of the 4th sub-pix and except other at least one colors white, in addition to black
Filter pattern, on the one hand, the sum of light emission luminance of filter pattern of other colors in addition to white, black is sub- no more than the 4th
The 20% of pixel light emission brightness, can be to avoid display color exception；On the other hand, by the 4th sub-pix setting except white,
The filter pattern of other at least one colors except black so that pixel is shown simultaneously when the 4th sub-pix is individually shown
The color of the filter pattern of white and other colors in addition to white, black, can adjust color when pixel is displayed in white
Coordinate or white balance avoid and other sub-pixes are driven to carry out the driving complexity and the big problem of power consumption that display is brought.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of existing schematic cross-section of OLED display；
Fig. 2 is a kind of existing dot structure schematic diagram；
Fig. 3 is a kind of dot structure schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another dot structure schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic cross-section of OLED display provided in an embodiment of the present invention；
Fig. 6 is a kind of production method schematic diagram of bottom emitting type OLED display provided in an embodiment of the present invention；
Fig. 7 is a kind of production method schematic diagram of top-emitting OLED display device provided in an embodiment of the present invention.
Reference numeral：
10- pixels；11- underlay substrates；12-TFT arrays；13- anodes；14- light emitting functional layers；15- cathodes；16- pixels
Define layer；22- chromatic filter layers；101- array substrates；102- package substrates；221- red filter patterns；222- green filters
Pattern；223- blue filter patterns；224- white filter patterns.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of OLED substrate for display provided in an embodiment of the present invention, technical solution to facilitate the understanding of the present invention are first
The displaying principle of colored display, which is explained, first to be realized to white light luminous organic material combination colored filter.
As shown in Figure 1, by taking a pixel 10 of OLED display as an example, OLED display includes array substrate 101
For package substrate 102, wherein array substrate 101 includes underlay substrate 11, the tft array being formed on underlay substrate 11
12, pixel defining layer 16, the anode 13, light emitting functional layer 14 and the cathode 15 that are electrically connected with the source electrode of TFT or drain electrode.Work as anode
13 and cathode 15 simultaneously on-load voltage when, the light emitting functional layer 14 between anode 13 and cathode 15 emits white light.Package substrate
Chromatic filter layer 22 is formed on 102, wherein chromatic filter layer 22 include red filter pattern 221, green filter pattern 222,
Blue filter pattern 223 and white filter pattern 224 correspond to an anode respectively, form the sub- picture of red sub-pixel, green
Element, blue subpixels and white sub-pix.As shown in Fig. 2, for the overlooking structure diagram of color filter patterns in a pixel,
Including red (R) sub-pix, green (G) sub-pix, blue (B) sub-pix and white (Y) sub-pix.
In all embodiments of the invention, need the definition for illustrating " layer " and " pattern ", and between relationship.Its
In, " layer " refers to the thin film produced using deposition or other techniques on substrate using a certain material；If entire
The film also needs patterning processes in manufacturing process, then includes at least one film " pattern " in " layer " after patterning processes.
Exemplary, above-mentioned chromatic filter layer can be that formation red filter film, green filter are thin on the transparent substrate
Film, blue filter film and white light filter film, the red filter pattern formed after patterned technique, green filter pattern,
Blue filter pattern and white filter pattern.
It should be noted that the electrode being electrically connected with the source electrode of TFT or drain electrode may be cathode, then another electrode is
Anode.It is illustrated so that the electrode being electrically connected with the source electrode of TFT or drain electrode is anode as an example in the embodiment of the present invention.
In the prior art, can be that red sub-pixel is shown, other sub-pixes are not shown if pixel is displayed in red；If
Pixel is displayed in blue, then can be that blue subpixels are shown, other sub-pixes are not shown；If pixel display green, can be
Green sub-pixels show that other sub-pixes are not shown；But pixel is displayed in white, then red while general white sub-pix display
Color sub-pix and blue subpixels also realize display, to carry out display compensation to white sub-pix, then cause the drive of display device
Dynamic problem complicated, power consumption is big.
What needs to be explained here is that sub-pix is shown, i.e. the corresponding cathode of the sub-pix and anode on-load voltage simultaneously makes
The light emitting functional layer for obtaining the sub-pix shines, that is, realizes display.Sub-pix does not show that i.e. cathode and/or anode is not loaded with voltage,
It cannot shine to the light emitting functional layer of the sub-pix, then can not achieve display.
An embodiment of the present invention provides a kind of OLED substrate for display, are applied to OLED display, and display device includes
Multiple pixels, each pixel include：First sub-pix, the second sub-pix, third sub-pix and the 4th sub-pix, substrate for display
Including chromatic filter layer, chromatic filter layer includes the filter pattern of at least four different colours, wherein substrate for display is in correspondence
It is formed with red filter pattern at the position of first sub-pix, green filter figure is formed at the position of corresponding second sub-pix
Case is formed with blue filter pattern at the position of corresponding third sub-pix, is formed at the position of corresponding 4th sub-pix
White filter pattern and except white, the filter pattern of other at least one colors in addition to black, and except white, black it
20% of the light emission luminance of the filter pattern of other outer colors no more than the sum of the 4th sub-pix light emission luminance.
Due to the mixed color that the color that pixel is shown is the color that each sub-pix is shown, in corresponding 4th sub-pix
White filter pattern is formed at position, primarily to increasing the transmitance of the pixel, then in the position of corresponding 4th sub-pix
The sum of the light emission luminance of filter pattern of other colors in addition to white, black that place is formed shines no more than the 4th sub-pix
The 20% of brightness, such as can be 10%, 15% etc., it is abnormal to avoid display device display color.
Such as it is formed with red filter pattern, green filter pattern and blue filter at the position of corresponding 4th sub-pix
Pattern, then the sum of light emission luminance of red filter pattern, green filter pattern and blue filter pattern is no more than the 4th sub-pix
The 20% of light emission luminance.Certainly, according to different display devices, formed at the position of corresponding 4th sub-pix except white, black
The sum of light emission luminance of filter pattern of other colors except color can also be no more than the 4th sub-pix light emission luminance
40%.Other face in addition to white, black of the embodiment of the present invention preferably to be formed at the position of corresponding 4th sub-pix
20% of the sum of light emission luminance of filter pattern of color no more than the 4th sub-pix light emission luminance is described in detail.
It should be noted that being formed with white filter pattern at the position of corresponding 4th sub-pix and except white, black
The filter pattern of other at least one colors except color can only be formed except white at the position of corresponding 4th sub-pix
A kind of color filter patterns of color except color, black can also be and be formed except white at the position of corresponding 4th sub-pix
The color filter patterns etc. of two or three of color except color, black.And color filter patterns can be the filter of random color
Light pattern, such as can be Yellow filter pattern, orange filter pattern etc..The embodiment of the present invention is not especially limited, only with attached
It is illustrated for shown in figure.
The present invention provides a kind of OLED substrate for display, and white optical filtering is formed at the position of corresponding 4th sub-pix
The filter pattern of pattern and other at least one colors in addition to white, black, on the one hand, in addition to white, black
The sum of light emission luminance of filter pattern of other colors is not more than the 20% of the 4th sub-pix light emission luminance, can be to avoid display face
Color anomaly；On the other hand, pass through the optical filtering figure of other at least one colors in the setting of the 4th sub-pix in addition to white, black
Case so that pixel is displayed in white and when the 4th sub-pix is individually shown except white, other colors in addition to black
The color of filter pattern can adjust chromaticity coordinates or white balance when pixel is displayed in white, avoid and drive other sub-pixes
Carry out the driving complexity and the big problem of power consumption that display is brought.
Optionally, red filter pattern, green filter pattern and blue are formed at the position of corresponding 4th sub-pix
At least one of filter pattern filter pattern.
Specifically, for shown in Fig. 3, substrate for display is formed with red filter at the position of corresponding first sub-pix
Pattern 221 is formed with green filter pattern 222 at the position of corresponding second sub-pix, in the position of corresponding third sub-pix
Place is formed with blue filter pattern 223, and white filter pattern 224, Yi Jihong are formed at the position of corresponding 4th sub-pix
Color filter pattern 221.Due to being formed with red filter pattern at the position of corresponding first sub-pix, then the first sub-pix is corresponded to
Red filter pattern at position can pass through a composition work with the red filter pattern corresponded at the 4th sub-pixel location
Skill is formed, and so as to reduce the material category of chromatic filter layer, simplifies manufacture craft.
Certainly, it can also be at the position of corresponding 4th sub-pix and be formed with red filter pattern, green filter pattern
Can also be to be formed with red filter pattern, green filter pattern and blue with a kind of filter pattern in blue filter pattern
Arbitrary two kinds of filter patterns, can also be and be formed simultaneously with red filter pattern, green filter pattern and blue in filter pattern
Filter pattern.
Preferably, as shown in figure 4, substrate for display is formed with red filter pattern at the position of corresponding first sub-pix
221, it is formed with green filter pattern 222 at the position of corresponding second sub-pix, the shape at the position of corresponding third sub-pix
At there is blue filter pattern 223, white filter pattern 224 and red filter are formed at the position of corresponding 4th sub-pix
Light pattern 221 and blue filter pattern 223.Since red is warm tones, blue is cool tone, then in corresponding 4th sub-pix
The filter pattern of a warm tones and a cool tone is respectively formed at position, can under different-colour to the 4th sub-pix into
Row display compensation.
It should be noted that since the lighting function layer material that different display panels use is different, what is worked long hours
In the case of, the variation of chromaticity coordinates and colour temperature is different, then also different to its compensation, then can be according to specific display panel
Situation selection corresponding color filter pattern compensate, the embodiment of the present invention only by Fig. 3, it is shown in Fig. 4 for illustrate.
Since red, blue wavelength is different, human eye is high to red sensitive degree, then preferably, in corresponding 4th sub-pix
Position at, the light emission luminance of red filter pattern is not more than the light emission luminance of blue filter pattern.Further, red filter
The light emission luminance of pattern is less than the light emission luminance of blue filter pattern, to balance the visual difference of human eye, reaches better vision effect
Fruit.
Since the thickness and area of color filter patterns are directly proportional to its light emission luminance, i.e., the area in a sub-pix
In range, its bigger light emission luminance of area of filter pattern is bigger, its smaller light emission luminance of thickness of filter pattern is bigger.Then,
The light emission luminance of red filter pattern is less than the light emission luminance of blue filter pattern, can be the area and indigo plant of red filter pattern
The area equation of color filter pattern, the thickness of red filter pattern are more than the thickness of blue filter pattern；Alternatively, red filter figure
The thickness of case is equal with the thickness of blue filter pattern, and the area of red filter pattern is less than the area of blue filter pattern.
Further, the light emission luminance of red filter pattern is not more than the 10% of the 4th sub-pix light emission luminance, blue filter
The light emission luminance of light pattern is not more than the 20% of the 4th sub-pix light emission luminance.For example, the light emission luminance of red filter pattern can
To be equal to the 5% of the 4th sub-pix light emission luminance, the light emission luminance of blue filter pattern can be equal to the 4th sub-pix hair
The 15% of brightness, the sum of the light emission luminance of red filter pattern and the light emission luminance of blue filter pattern are equal to the 4th sub-pix
The 20% of light emission luminance.Alternatively, the light emission luminance of red filter pattern can be equal to the 8% of the 4th sub-pix light emission luminance,
The light emission luminance of blue filter pattern can be equal to the 12% of the 4th sub-pix light emission luminance, the luminance of red filter pattern
The sum of light emission luminance of degree and blue filter pattern is equal to the 20% of the 4th sub-pix light emission luminance.
Certainly, the light emission luminance of the light emission luminance of red filter pattern and blue filter pattern can be red with other values
The sum of the light emission luminance of filter pattern and the light emission luminance of blue filter pattern can be less than the 4th sub-pix light emission luminance
20% arbitrary other values.The embodiment of the present invention is not especially limited, and is only illustrated for above-mentioned.
Specifically, the 4th sub-pix light emission luminance is equal to the light emission luminance of red filter pattern 5%, blue filter figure
The light emission luminance of case is equal to for the 4th sub-pix light emission luminance 15%.Can then it make in the position of corresponding 4th sub-pix
Place, the thickness of red filter pattern is equal to the thickness of blue filter pattern, and the area of red filter pattern is the 4th sub-pix
/ 20th of area, the area of blue filter pattern are 3rd/20th of the 4th sub-pix area, then white filter at this time
The area of light pattern is 4/5ths of the 4th sub-pix area.
An embodiment of the present invention provides a kind of OLED displays, as shown in figure 5, including array substrate 101 and encapsulation base
Plate 102, wherein array substrate is substrate for display provided in an embodiment of the present invention.It is exemplary, as shown in figure 5, array substrate
101 further include：First substrate 11 and the tft array 12 being formed on the first substrate 11, pixel defining layer 16, colorized optical filtering
Layer 22, second electrode (cathode) 15 and is formed between first electrode 13 and second electrode 15 first electrode (anode) 13
Light emitting functional layer 14, wherein TFT includes：Grid, gate insulating layer, active layer, source electrode and drain electrode, first electrode and source electrode or
Drain electrode electrical connection (not shown).Wherein, chromatic filter layer 22 is formed between first electrode 13 and light emitting functional layer 14, should
Display device is bottom luminous display unit, i.e., light emitting functional layer is display side close to the side of first electrode.
Specifically, TFT can be non-crystalline silicon tft, multi-crystal TFT, oxide TFT, organic tft etc..Specifically, TFT packets
Include multilayered structure, including grid, gate insulating layer, active layer, source electrode and drain electrode.Organic luminescence function layer is located at cathode and anode
Between, it includes hole injection layer, hole transmission layer, luminescent layer, electron transfer layer, electron injecting layer etc. that can be.Wherein, cathode
Or anode can be electrically connected with the source electrode of TFT or drain electrode.And the translucency by the way that cathode and anode is arranged, bottom hair can be made
Light, top shine or the OLED display panel of double-sided display.
It should be noted that if display panel is bottom luminous display unit, then chromatic filter layer can be formed in luminous
Can be specifically as shown in Figure 5 below functional layer；If display device is top luminous display unit, chromatic filter layer can be with
It is to form the upper surface of light emitting functional layer.It enamels for array substrate the specific location of filter layer, the embodiment of the present invention is not made to have
Body limits, and is only illustrated for above-mentioned.
In the following, an embodiment of the present invention provides a kind of production methods forming display device as shown in Figure 5, such as Fig. 6 institutes
Show, including：
Step 101 selects glass substrate as underlay substrate, formed on the glass substrate tft array, pixel defining layer with
And pixel electrode.Wherein, TFT includes forming grid, gate insulating layer, active layer, source electrode and drain electrode.Pixel electrode and source electrode
Or drain electrode electrical connection, generally as anode.
Step 102 forms red filter layer, green color filter, blue color filter layer and white optical filtering on the pixel electrode
Layer.
Specifically, with wet processing, such as InkJet printing processes make certain thickness at the position of corresponding first sub-pix
Red filter pattern, at the position of corresponding 4th sub-pix make same thickness red filter pattern.It is exemplary, it is red
The thickness of color filter pattern can be 1 micron, and the area of the red filter pattern at corresponding 4th sub-pixel location can be
/ 20th of 4th sub-pix area.
With wet processing, such as InkJet printing processes, certain thickness green is made at the position of corresponding second sub-pix
Filter pattern.Exemplary, the thickness of green filter pattern can be 1 micron.
With wet processing, such as InkJet printing processes, certain thickness blue is made at the position of corresponding third sub-pix
Filter pattern makes the blue filter pattern of same thickness at the position of corresponding 4th sub-pix.It is exemplary, blue filter
The thickness of pattern can be 1 micron, and the area of the blue filter pattern at corresponding 4th sub-pixel location can be the 4th Asia
3rd/20th of elemental area.
With wet processing, such as InkJet printing processes, certain thickness white is made at the position of corresponding 4th sub-pix
Filter pattern.Exemplary, the thickness of white filter pattern can be 1 micron.And the white filter at corresponding 4th sub-pixel location
The area of light pattern can be 4/5ths of the 4th sub-pix area.
Since pixel defining layer is mainly used for separating each pixel electrode, then chromatic filter layer is formed on the pixel electrode, no
Filter pattern with color can be separated by pixel defining layer.
Step 103 forms light emitting functional layer and cathode in the upper surface of chromatic filter layer.
101- steps 103 form the array substrate of bottom emitting type OLED display through the above steps.As shown in figure 5,
Wherein, chromatic filter layer be located at anode 13 between organic luminescence function layer 14.Due to being bottom emitting type OLED display,
Then cathode can be opaque, and anode is light transmission, and picture is shown in the side of anode.
Step 104 is packaged the array substrate of the bottom emitting type OLED display of formation using package substrate.Envelope
The glass substrate that substrate can also be transparent with packaging film is filled, laser emission technique specifically may be used and realize encapsulation.
At this point, OLED display completes, each pixel can be such as Fig. 4 institutes in the OLED display of formation
Show.
Certainly, the making of bottom emitting type OLED display is not limited to above-mentioned steps, such as can also be in array substrate
Glass substrate on form pixel defining layer or other film or layer structure etc., the embodiment of the present invention carry out only for above-mentioned
Explanation.
An embodiment of the present invention provides a kind of OLED displays, including array substrate and package substrate, wherein encapsulation base
Plate is any substrate for display provided in an embodiment of the present invention；
Array substrate includes：Tft array, pixel defining layer, the first electricity of first substrate and formation on the first substrate
Pole, second electrode and form light emitting functional layer between the first electrode and the second electrode, wherein TFT includes：Grid, grid
Pole insulating layer, active layer, source electrode and drain electrode, first electrode are electrically connected with source electrode or drain electrode.
I.e. chromatic filter layer is formed on package substrate, specifically, the filter pattern that colored film layer includes is referred to this
The description of substrate for display, does not repeat here in inventive embodiments.The display of chromatic filter layer is formed on package substrate
Device is top light emitting display.And package substrate is generally used for encapsulating box with array substrate, then chromatic filter layer can be with
It is formed in side of the package substrate close to array substrate, or is formed in side of the package substrate far from array substrate.
A kind of production method of top-emitting OLED display device is provided below, as shown in fig. 7, comprises：
Step 201, the array substrate for forming top-emitting OLED display device.It specifically includes：Select glass substrate as
Underlay substrate forms tft array, pixel defining layer and pixel electrode on the glass substrate.Wherein, TFT includes forming grid
Pole, gate insulating layer, active layer, source electrode and drain electrode.Pixel electrode is electrically connected with source electrode or drain electrode, generally as anode.
Organic light emitting functional layer and cathode are formed in the upper surface of pixel electrode.
Step 202 forms the package substrate with chromatic filter layer.It specifically includes：Select glass substrate as substrate base
Plate forms red filter layer, green color filter, blue color filter layer and white filter layer on the glass substrate.
Specifically, with wet processing, such as InkJet printing processes make certain thickness at the position of corresponding first sub-pix
Red filter pattern, at the position of corresponding 4th sub-pix make same thickness red filter pattern.It is exemplary, it is red
The thickness of color filter pattern can be 1 micron, and the area of the red filter pattern at corresponding 4th sub-pixel location can be
/ 20th of 4th sub-pix area.
With wet processing, such as InkJet printing processes, certain thickness green is made at the position of corresponding second sub-pix
Filter pattern.Exemplary, the thickness of green filter pattern can be 1 micron.
With wet processing, such as InkJet printing processes, certain thickness blue is made at the position of corresponding third sub-pix
Filter pattern makes the blue filter pattern of same thickness at the position of corresponding 4th sub-pix.It is exemplary, blue filter
The thickness of pattern can be 1 micron, and the area of the blue filter pattern at corresponding 4th sub-pixel location can be the 4th Asia
3rd/20th of elemental area.
With wet processing, such as InkJet printing processes, certain thickness white is made at the position of corresponding 4th sub-pix
Filter pattern.Exemplary, the thickness of white filter pattern can be 1 micron.And the white filter at corresponding 4th sub-pixel location
The area of light pattern can be 4/5ths of the 4th sub-pix area.
Step 203 is packaged the array substrate of the top-emitting OLED display device of formation using package substrate.Tool
Body may be used laser emission technique and realize encapsulation.
When being packaged using package substrate, can be will be formed with the side of chromatic filter layer close to array substrate into
Row encapsulation, can also be to be packaged the side for being formed with chromatic filter layer far from array substrate.
At this point, OLED display completes, each pixel can be such as Fig. 4 institutes in the OLED display of formation
Show.
Certainly, the making of top-emitting OLED display device is not limited to above-mentioned steps, such as can also be in package substrate
Glass substrate on form black matrix or other film or layer structure etc., the embodiment of the present invention are only said for above-mentioned
It is bright.
It should be noted that in the description of the present invention, it is to be understood that, the orientation of the instructions such as term "upper", "lower"
Or position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of instruction or hint meaning or element must have a particular orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of OLED substrate for display is applied to OLED display, the display device includes multiple pixels, each described
Pixel includes：First sub-pix, the second sub-pix, third sub-pix and the 4th sub-pix, which is characterized in that the display base
Plate includes chromatic filter layer, and the chromatic filter layer includes the filter pattern of at least four different colours, wherein the display is used
Substrate is formed with red filter pattern at the position of correspondence first sub-pix, in the position of correspondence second sub-pix
Place is formed with green filter pattern, and blue filter pattern is formed at the position of the correspondence third sub-pix, in corresponding institute
It states and is formed with white filter pattern and other at least one colors in addition to white, black at the position of the 4th sub-pix
Filter pattern, and it is described except the sum of white, light emission luminance of filter pattern of other colors in addition to black are no more than described
The 20% of 4th sub-pix light emission luminance.
2. substrate for display according to claim 1, which is characterized in that the shape at the position of correspondence the 4th sub-pix
At there is at least one of the red filter pattern, the green filter pattern and blue filter pattern filter pattern.
3. substrate for display according to claim 2, which is characterized in that the shape at the position of correspondence the 4th sub-pix
At having the red filter pattern and the blue filter pattern.
4. substrate for display according to claim 3, which is characterized in that at the position of correspondence the 4th sub-pix,
The light emission luminance of the red filter pattern is not more than the light emission luminance of the blue filter pattern.
5. substrate for display according to claim 4, which is characterized in that the light emission luminance of the red filter pattern is little
In the 10% of the 4th sub-pix light emission luminance, the light emission luminance of the blue filter pattern is not more than the 4th sub-pix
The 20% of light emission luminance.
6. substrate for display according to claim 4 or 5, which is characterized in that the area of the red filter pattern and institute
The area equation of blue filter pattern is stated, and the thickness of the red filter pattern is more than the thickness of the blue filter pattern；
Alternatively,
The thickness of the red filter pattern is equal with the thickness of blue filter pattern, and the face of the red filter pattern
Area of the product less than the blue filter pattern.
7. a kind of OLED display, including array substrate and package substrate, which is characterized in that the array substrate is wanted for right
1-6 any one of them substrate for display is sought,
The array substrate further includes：First substrate and the tft array being formed on first substrate, pixel defining layer,
First electrode, second electrode and the light emitting functional layer being formed between the first electrode and the second electrode, wherein
TFT includes：Grid, gate insulating layer, active layer, source electrode and drain electrode, the first electrode and the source electrode or drain electrode electricity
Connection.
8. display device according to claim 7, which is characterized in that the chromatic filter layer is formed in the pixel and defines
Between layer and the light emitting functional layer.
9. a kind of OLED display, including array substrate and package substrate, which is characterized in that the package substrate is wanted for right
Seek 1-6 any one of them substrate for display；
The array substrate further includes：First substrate and the tft array being formed on first substrate, pixel defining layer,
First electrode, second electrode and the light emitting functional layer being formed between the first electrode and the second electrode, wherein
TFT includes：Grid, gate insulating layer, active layer, source electrode and drain electrode, the first electrode and the source electrode or drain electrode electricity
Connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510133759.1A CN104835830B (en) | 2015-03-25 | 2015-03-25 | A kind of OLED substrate for display and display device |
| PCT/CN2015/076886 WO2016149969A1 (en) | 2015-03-25 | 2015-04-17 | Substrate for oled display and display device |
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| CN201510133759.1A CN104835830B (en) | 2015-03-25 | 2015-03-25 | A kind of OLED substrate for display and display device |
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| CN104835830B true CN104835830B (en) | 2018-08-21 |
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| WO (1) | WO2016149969A1 (en) |
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| KR102508727B1 (en) * | 2015-11-19 | 2023-03-14 | 삼성디스플레이 주식회사 | Display device |
| CN105679798B (en) * | 2016-01-22 | 2019-03-29 | 京东方科技集团股份有限公司 | OLED display and its pixel repairing method |
| CN107422521A (en) | 2017-09-19 | 2017-12-01 | 京东方科技集团股份有限公司 | A kind of color membrane substrates and preparation method thereof, display panel |
| US10510811B2 (en) | 2017-12-29 | 2019-12-17 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Color filter and white organic light-emitting diode display apparatus |
| CN108231842A (en) * | 2017-12-29 | 2018-06-29 | 深圳市华星光电半导体显示技术有限公司 | Colored filter and white organic LED display device |
| CN108630733B (en) | 2018-05-07 | 2020-12-25 | 京东方科技集团股份有限公司 | Display panel |
| CN110120190B (en) * | 2019-04-10 | 2021-12-21 | 深圳康佳电子科技有限公司 | Micro LED display panel and control method thereof |
| CN111562669A (en) * | 2020-06-08 | 2020-08-21 | 昆山梦显电子科技有限公司 | Silicon-based OLED micro-display with eye tracking function and preparation method thereof |
| CN111562671A (en) * | 2020-06-08 | 2020-08-21 | 昆山梦显电子科技有限公司 | Display panel based on target tracking technology and preparation method thereof |
| CN111679490B (en) * | 2020-07-30 | 2023-07-21 | 厦门天马微电子有限公司 | Color film substrate, preparation method thereof, display panel and display device |
| CN112310322B (en) | 2020-10-30 | 2022-11-08 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
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| WO2016149969A1 (en) | 2016-09-29 |
| CN104835830A (en) | 2015-08-12 |
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