CN102707510A - Color film baseplate, display panel, display and method for producing color film baseplate - Google Patents
Color film baseplate, display panel, display and method for producing color film baseplate Download PDFInfo
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- CN102707510A CN102707510A CN2011101308124A CN201110130812A CN102707510A CN 102707510 A CN102707510 A CN 102707510A CN 2011101308124 A CN2011101308124 A CN 2011101308124A CN 201110130812 A CN201110130812 A CN 201110130812A CN 102707510 A CN102707510 A CN 102707510A
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Abstract
The invention provides a color film baseplate, a display panel, a display and a method for producing the color film baseplate, the color film baseplate comprises a baseplate and a color film layer which is formed on the baseplate, wherein the color film layer comprises a pixel area with at least one color and a variable color pixel area, and the color of the variable color pixel area can be changed under the control of an excitation source. When the color film baseplate is used, the light transmittance of a backlight can be improved according to the practical display requirements, so the energy sources are saved or the color saturation of a display panel is increased.
Description
Technical field
The present invention relates to the display technique field, relate in particular to the method for making of a kind of color membrane substrates, display panel, display and color membrane substrates.
Background technology
Display panels comprises: array base palte (Array substrate), color membrane substrates (CF substrate) and be filled in liquid crystal material between the two.Form pixel electrode and common electrode on array base palte and the color membrane substrates respectively, form electric field powering up between latter two electrode,, can control the anglec of rotation of liquid crystal molecule through the variation of control electric field intensity, thus the light transmittance of control backlight.Most display panels be on color membrane substrates, use have red (R), green (G), the color rete of blue (B) pixel region carries out colour filter; Through regulating the transmitance of backlight; Can obtain some GTGs of different colours red, green, blue, realize versicolor colored the demonstration through the colour mixture addition.
Be illustrated in figure 1 as the planar structure synoptic diagram of color rete of the prior art; Color rete comprises red pixel district (R), green pixel district (G) and blue pixel district (B); Red pixel district, green pixel district and blue pixel district can only pass through red light, green light and blue ray respectively, that is to say, have only 1/3rd backlight light to be utilized; This makes backlight efficient reduce greatly; In addition, only red, green, blue is carried out the colour mixture addition, be difficult to reach the color saturation of expectation in some cases.
Summary of the invention
In view of this, the present invention provides the method for making of a kind of color membrane substrates, display panel, display and color membrane substrates, can perhaps increase the color saturation of display panel according to the light transmittance of actual displayed demand raising backlight with energy savings.
For addressing the above problem; The present invention provides a kind of color membrane substrates; Comprise: substrate and be formed on the color rete on the said substrate, said color rete comprises: at least a color pixel district and changeable colour pixel region, said changeable colour pixel region can change color under the control of driving source.
Preferably, said driving source is an electric field, and said color membrane substrates also comprises: first electrode layer is arranged at the below of said changeable colour pixel region; The second electrode lay is arranged at the top of said color rete; Wherein, after said first electrode layer and said the second electrode lay power up, between produce electric field.
Preferably, said color membrane substrates also comprises: first screed-coat, it is poor to be used to eliminate the section that exists between region, said color pixel district and the said changeable colour pixel region region, is arranged between said color rete and the said the second electrode lay.
The height sum of said changeable colour pixel region and said first electrode layer is lower than the height in said color pixel district; Preferably; Said color membrane substrates also comprises: second screed-coat; It is poor to be used to eliminate the section that exists between region, said color pixel district and the said changeable colour pixel region region, is arranged between said substrate and said first electrode layer.
The height sum of said changeable colour pixel region and said first electrode layer is higher than the height in said color pixel district; Preferably; Said color membrane substrates also comprises: the 3rd screed-coat; It is poor to be used to eliminate the section that exists between region, said color pixel district and the said changeable colour pixel region region, is arranged between said color pixel district and the said the second electrode lay.
Preferably, said at least a color pixel district comprise in red pixel district, green pixel district or the blue pixel district one of at least.
Preferably, said changeable colour pixel region is by processing at the electrochromic material that between Transparent color and yellow, switches under the control of electric field.
The present invention also provides a kind of display panel; Comprise array base palte, color membrane substrates and be filled in the liquid crystal material between said display substrate and the said color membrane substrates; Said color membrane substrates comprises: substrate and be formed on the color rete on the said substrate; Said color rete comprises: at least a color pixel district and changeable colour pixel region, said changeable colour pixel region can change color under the control of driving source.
The present invention also provides a kind of display; Comprise display panel and be coupled to the driving circuit of said display panel; Said display panel comprises array base palte, color membrane substrates and is filled in the liquid crystal material between said display substrate and the said color membrane substrates; Said color membrane substrates comprises: substrate and be formed on the color rete on the said substrate, said color rete comprises: at least a color pixel district and changeable colour pixel region, said changeable colour pixel region can change color under the control of driving source.
The present invention also provides a kind of method for making of color membrane substrates, comprising: on substrate, form color rete, said color rete comprises: at least a color pixel district and changeable colour pixel region, said changeable colour pixel region can change color under the control of driving source.
Preferably, said driving source is an electric field; Saidly before forming color rete on the substrate, also comprising: on said substrate, form first electrode layer; Saidly be specially forming color rete on the substrate: on said substrate, form said color pixel district, above said first electrode layer, form said changeable colour pixel region; Saidly also comprise after on substrate, forming color rete: above said color rete, form the second electrode lay, wherein, after said first electrode layer and said the second electrode lay power up, between produce electric field.
Preferably, saidly before forming the second electrode lay above the said color rete, also comprising: be formed for eliminating first screed-coat that the section that exists between region, said color pixel district and the said changeable colour pixel region region differs from above the said color rete.
The height sum of said changeable colour pixel region and said first electrode layer is lower than the height in said color pixel district; Preferably, saidly before forming first electrode layer on the said substrate, also comprising: be formed for eliminating second screed-coat that the section that exists between region, said color pixel district and the said changeable colour pixel region region differs from the said substrate; Saidly be specially forming first electrode layer on the said substrate: on said second screed-coat, form said first electrode layer.
The height sum of said changeable colour pixel region and said first electrode layer is higher than the height in said color pixel district; Preferably, saidly before forming the second electrode lay above the said color rete, also comprising: be formed for eliminating the 3rd screed-coat that the section that exists between region, said color pixel district and the said changeable colour pixel region region differs from above the said color pixel district; Saidly be specially forming the second electrode lay above the said color rete: above said the 3rd screed-coat and said changeable colour pixel region, form said the second electrode lay.
The present invention has following beneficial effect:
In the color rete of color membrane substrates, increased the changeable colour pixel region; The changeable colour pixel region can switch between different colours under the effect of driving source; For example between Transparent color and yellow, switch, when the changeable colour pixel region switches to Transparent color, can improve the light percent of pass of backlight according to the actual displayed demand; Under the condition of equal brightness requirement, the energy that can the save on backlight source; When the changeable colour pixel region switches to other colors (for example yellow), can improve the color saturation of display panel, increase visual effect.
Description of drawings
Fig. 1 is the planar structure synoptic diagram of color rete of the prior art;
Fig. 2 is a cross section structure synoptic diagram of color membrane substrates of the present invention;
Fig. 3 is a planar structure synoptic diagram of color rete of the present invention;
Fig. 4 is another planar structure synoptic diagram of color rete of the present invention;
Fig. 5 is another cross section structure synoptic diagram of color membrane substrates of the present invention;
Fig. 6 is the another cross section structure synoptic diagram of color membrane substrates of the present invention;
Fig. 7 is a cross section structure synoptic diagram again of color membrane substrates of the present invention;
Fig. 8 is a flow process synoptic diagram of the method for making of color membrane substrates of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.
The invention provides a kind of color membrane substrates; Said color membrane substrates is applied in the display panel; Comprise: substrate and be formed on the color rete on the said substrate; Said color rete comprises at least a color pixel district and changeable colour pixel region, and said changeable colour pixel region can change color under the control of driving source.
Said color pixel district can be red pixel district, green pixel district, blue pixel district or other color pixel districts.Comprise in the color rete of most of color membrane substrates: red pixel district, the three kinds of color pixel districts in green pixel district and blue pixel district; Therefore, comprise with said color rete in following examples: red pixel district, green pixel district, blue pixel district and changeable colour pixel region are that example describes.
Said driving source can polytype driving source; Decide according to the working mechanism of said changeable colour pixel region; When the working mechanism of said changeable colour pixel region not simultaneously; Said driving source is different, and the structure of said color membrane substrates is also inequality, below will be for example several kinds of embodiments of said color membrane substrates be described.
(1) embodiment one
Said changeable colour pixel region can be processed by the electrochromic material that can under the control of electric field, change color, and at this moment, said driving source is an electric field, need have the element that can produce the required electric field of said changeable colour pixel region on the said color membrane substrates.
Based on foregoing description; Said color membrane substrates can also comprise: first electrode layer and the second electrode lay; Said first electrode layer is arranged at the below of said changeable colour pixel region; Said the second electrode lay is arranged at the top of said changeable colour pixel region, after said first electrode layer and said the second electrode lay power up, between produce electric field; Said changeable colour pixel region is between said first electrode layer and said the second electrode lay, and the control of the electric field that can produce at said first electrode layer and said the second electrode lay is the change color down.
For can with the common electrode effect on the array base palte of display panel; Generation is used to control the electric field of liquid crystal molecule rotation; The top of the color rete of said color membrane substrates also need have pixel electrode; Preferably, above-mentioned the second electrode lay can wholely cover the top of said color rete, as said pixel electrode.
(2) embodiment two
Said changeable colour pixel region can also be processed by the off-color material that can under the control of electric current, change color; At this moment; Said driving source is an electric current; Said changeable colour pixel region can be electrically connected with an electric current output element of outside, receives the electric current of said electric current output element output, and changes color according to current's intensity.
(3) embodiment three
Said changeable colour pixel region can also be processed by the off-color material that can under the control in magnetic field, change color, and at this moment, said driving source is magnetic field, need have the element that can produce the required magnetic field of said changeable colour pixel region on the said color membrane substrates.
Said changeable colour pixel region is not limited to above-mentioned several kinds, can be processed by any material that can under the effect of driving source, change color.Among the following embodiment, all cause changeable material by electricity and be made for example and describe with said changeable colour pixel region.
In order to improve the display quality of display panel, also black matrix (BM) need be set on said color membrane substrates usually, certainly, also black matrix can be set on said color membrane substrates, but will deceive arranged in matrix on the array base palte of display panel.Among the following embodiment, be that example describes all so that black matrix to be set on said color membrane substrates.
Be illustrated in figure 2 as a cross section structure synoptic diagram of color membrane substrates of the present invention; Said color membrane substrates is applied in the display panel, and said color membrane substrates comprises: substrate 201, be formed on first electrode layer 202 on the said substrate 201, black matrix 203, red pixel district 204, green pixel district 205, blue pixel district 206, changeable colour pixel region 207 and the second electrode lay 208.Said red pixel district 204, green pixel district 205, blue pixel district 206 and the said changeable colour pixel region 207 common color retes that constitute said color membrane substrates.Said first electrode layer 202 is arranged at the below of said changeable colour pixel region 207, and said the second electrode lay 208 is arranged at the top of said black matrix 203 and said color rete, and said the second electrode lay 208 is the pixel electrode uses as said color membrane substrates.
It should be noted that said above and below among the present invention, is to decide according to the sequencing of manufacture craft, overlapped two-layer in, the back forms is positioned at the top that forms earlier.That is to say that the said substrate 201 in the foregoing description is positioned at below, said the second electrode lay 208 is positioned at the top.
Can find out from the foregoing description; Said changeable colour pixel region 207 is between said first electrode layer 202 and said the second electrode lay 208; Said first electrode layer 202 and said the second electrode lay 208 are after powering up; Can form electric field between the two,, can control said changeable colour pixel region 207 and change color through the variation of control electric field intensity.
As everyone knows; Compare with the material of other colors; The transmittance of transparent material is the highest, therefore, and in order to improve the light transmittance of backlight; Preferably, the changeable colour pixel region 207 among the present invention can be by processing at the electrochromic material that between Transparent color or other colors, switches under the control of electric field.
Learn through experiment; After yellow and the addition of red, green, blue three primary colours colour mixture; Can effectively improve the color saturation of display panel; Therefore, preferred, the changeable colour pixel region 207 among the present invention can be by processing at the electrochromic material that between Transparent color or yellow, switches under the control of electric field.
Color membrane substrates in following examples all describes by being made for example at the electrochromic material that between Transparent color (W) and yellow (Y), switches under the control of electric field with said changeable colour pixel region 207.
Red pixel district (R) in the color rete of the present invention, green pixel district (G), blue pixel district (B) and changeable colour pixel region (W&Y) can be multiple arrangement mode.As shown in Figure 3 is the planar structure synoptic diagram of the color membrane substrates among Fig. 2; As can be seen from Figure 3, said red pixel district, green pixel district, blue pixel district and changeable colour pixel region are stripe-arrangement, certainly; Also can be other arrangement modes; For example the square arrangement mode among Fig. 4 perhaps, also can be arrangement mode of mosaic etc.Certainly, the arrangement mode of the red pixel district in the said color rete, green pixel district, blue pixel district and changeable colour pixel region is not limited to above-mentioned several kinds, and reasonably the geometry arrangement structure all should be adopted arbitrarily.
As can be seen from Figure 2; Compare with said red pixel district 204, green pixel district 205, blue pixel district 206; The lower zone of said changeable colour pixel region 207 also has said first electrode layer 202; Occur between the zone that therefore may cause said changeable colour pixel region 207 places and the zone at said red pixel district 204, green pixel district 205,206 places, blue pixel district section poor (generally; Height between said red pixel district 204, green pixel district 205, blue pixel district 206, the black matrix 203 is all identical); The existence of section difference can make that the cell gap (liquid crystal space) of display panel is inhomogeneous, causes occurring mura (brightness shows uneven) problem.
Section poor between the zone of eliminating said red pixel district 204, green pixel district 205, blue pixel district 206 places and said changeable colour pixel region 207 regions; As shown in Figure 5; Can between said color rete, said black matrix 203 and said the second electrode lay 208, first screed-coat 209 be set, said first screed-coat 209 can adopt transparent resin material or other transparent materials to process.
Electrochromic material of a great variety, characteristics such as the color and luster light and shade of different electrochromic materials, light transmission rate are also inequality.If the yellow chrominance of electrochromic material is higher; Then use thin electrochromic material can reach the color display requirement; At this moment; The height sum of said changeable colour pixel region 207 and said first electrode layer 202 may be lower than the height in said red pixel district, green pixel district, blue pixel district, thus occur between the zone at the zone that causes said changeable colour pixel region 207 places and said red pixel district 204, green pixel district 205,206 places, blue pixel district section poor.
Section poor between the zone at the zone of eliminating said red pixel district 204, green pixel district 205, blue pixel district 206 places and said changeable colour pixel region 207 places; As shown in Figure 6; Can between said substrate 201 and said first electrode layer 202, second screed-coat 210 be set, said second screed-coat 210 can adopt water white transparency look resistance material or other transparent materials to process.At this moment, the height of said changeable colour pixel region 207 regions equals the height of said red pixel district 204, green pixel district 205,206 regions, blue pixel district.
Said second screed-coat 210 is identical with the effect of above-mentioned first screed-coat 209; All be poor for the section between the zone at the zone of eliminating said red pixel district 204, green pixel district 205, blue pixel district 206 places and said changeable colour pixel region 207 places, wherein a kind of mode of employing gets final product during therefore concrete realization.
The yellow chrominance of the electrochromic material that uses when said changeable colour pixel region 207 is lower; Then need use thicker electrochromic material just can reach the color display requirement; At this moment; Said changeable colour pixel region 207 may be higher than the height in said red pixel district 204, green pixel district 205, blue pixel district 206 with the height sum of said first electrode layer 202, thus occur between the zone at the zone that causes said changeable colour pixel region 207 places and said red pixel district 204, green pixel district 205,206 places, blue pixel district section poor.
Section poor between the zone at the zone of eliminating said red pixel district 204, green pixel district 205, blue pixel district 206 places and said changeable colour pixel region 207 places; As shown in Figure 7; Can between said red pixel district 204, green pixel district 205, blue pixel district 206, said black matrix 203 and said the second electrode lay 208, the 3rd screed-coat 211 be set, said the 3rd screed-coat 211 can adopt water white transparency look resistance material or other transparent materials to process.At this moment, the height of said changeable colour pixel region 207 regions equals the height of said red pixel district 204, green pixel district 205,206 regions, blue pixel district.
Said the 3rd screed-coat 211 is identical with the effect of above-mentioned first screed-coat 209; All be poor for the section between the zone at the zone of eliminating said red pixel district 204, green pixel district 205, blue pixel district 206 places and said changeable colour pixel region 207 places, wherein a kind of implementation of employing gets final product during therefore concrete realization.
The color membrane substrates that provides through the foregoing description; In the color rete of color membrane substrates, increased the changeable colour pixel region, the changeable colour pixel region can switch between different colours under the effect of driving source, for example between Transparent color and yellow, switches; When the changeable colour pixel region switches to Transparent color; Can improve the light percent of pass of backlight, under the condition of equal brightness requirement, the energy that can the save on backlight source; When the changeable colour pixel region switches to other colors (for example yellow), can improve the color saturation of display panel, increase visual effect.
The present invention also provides a kind of display panel; Said display panel comprises array base palte, color membrane substrates and is filled in the liquid crystal material between said display substrate and the said color membrane substrates; Said color membrane substrates comprises: substrate and be formed on the color rete on the said substrate; Said color rete comprises at least a color pixel district and changeable colour pixel region, and said changeable colour pixel region can change color under the control of driving source.
Said color pixel district can be red pixel district, green pixel district, blue pixel district or other color pixel districts.
Said driving source can polytype driving source (for example; Electric field, electric current, magnetic field etc.), decide according to the working mechanism of said changeable colour pixel region, when the working mechanism of said changeable colour pixel region not simultaneously; Said driving source is different, and the structure of said color membrane substrates is also inequality.
When said changeable colour pixel region is processed by the electrochromic material that changes color under can the control at electric field; Said driving source is an electric field; Said color membrane substrates can also comprise: first electrode layer and the second electrode lay, and said first electrode layer is arranged at the below of said changeable colour pixel region, and said the second electrode lay is arranged at the top of said changeable colour pixel region; After said first electrode layer and said the second electrode lay power up; Between produce electric field, said changeable colour pixel region is between said first electrode layer and said the second electrode lay, the control of the electric field that can produce at said first electrode layer and said the second electrode lay is the change color down.For can with the common electrode effect on the array base palte of display panel; Generation is used to control the electric field of liquid crystal molecule rotation; The top of the color rete of said color membrane substrates also need have pixel electrode; Preferably, above-mentioned the second electrode lay can wholely cover the top of said color rete, as said pixel electrode.
The structure of the color membrane substrates in the color membrane substrates in the said display panel and the foregoing description is identical, describes no longer one by one at this.
The embodiment of the invention also provides a kind of display; Said display comprises a display panel; Said display panel comprises: array base palte, color membrane substrates and be filled in the liquid crystal material between said display substrate and the said color membrane substrates; Said color membrane substrates comprises: substrate and be formed on the color rete on the said substrate, and said color rete comprises at least a color pixel district and changeable colour pixel region, said changeable colour pixel region can change color under the control of driving source.
Said color pixel district can be red pixel district, green pixel district, blue pixel district or other color pixel districts.
Said driving source can polytype driving source (for example; Electric field, electric current, magnetic field etc.), decide according to the working mechanism of said changeable colour pixel region, when the working mechanism of said changeable colour pixel region not simultaneously; Said driving source is different, and the structure of said color membrane substrates is also inequality.
When said changeable colour pixel region is processed by the electrochromic material that changes color under can the control at electric field; Said driving source is an electric field; Said color membrane substrates can also comprise: first electrode layer and the second electrode lay, and said first electrode layer is arranged at the below of said changeable colour pixel region, and said the second electrode lay is arranged at the top of said changeable colour pixel region; After said first electrode layer and said the second electrode lay power up; Between produce electric field, said changeable colour pixel region is between said first electrode layer and said the second electrode lay, the control of the electric field that can produce at said first electrode layer and said the second electrode lay is the change color down.For can with the common electrode effect on the array base palte of display panel; Generation is used to control the electric field of liquid crystal molecule rotation; The top of the color rete of said color membrane substrates also need have a pixel electrode; Preferably, above-mentioned the second electrode lay can wholely cover the top of said color rete, as said pixel electrode.
The structure of the color membrane substrates in the color membrane substrates in the said display and the foregoing description is identical, describes no longer one by one at this.
Corresponding to the color membrane substrates in the foregoing description; The present invention also provides a kind of method for making of color membrane substrates; Comprise: on substrate, form color rete; Said color rete comprises at least a color pixel district and changeable colour pixel region, and said changeable colour pixel region can change color under the control of driving source.
Said color pixel district can be red pixel district, green pixel district, blue pixel district or other color pixel districts.Comprise in the color rete of most of color membrane substrates: red pixel district, the three kinds of color pixel districts in green pixel district and blue pixel district; Therefore, comprise with said color rete in following examples: red pixel district, green pixel district, blue pixel district and changeable colour pixel region are that example describes.Said driving source can polytype driving source (for example; Electric field, electric current, magnetic field etc.); Decide according to the working mechanism of said changeable colour pixel region, when the working mechanism of said changeable colour pixel region not simultaneously, said driving source difference; The structure of said color membrane substrates is also inequality, and the method for making said color membrane substrates is also inequality.
When said changeable colour pixel region was processed by the electrochromic material that changes color under can the control at electric field, said driving source was an electric field, saidly before forming color rete on the substrate, was also comprising: on said substrate, form first electrode layer; Saidly be specially forming color rete on the substrate: on said substrate, form said red pixel district, green pixel district and blue pixel district, above said first electrode layer, form said changeable colour pixel region; Saidly also comprise after on substrate, forming color rete: above said color rete, form the second electrode lay.Said changeable colour pixel region is between said first electrode layer and said the second electrode lay; Said first electrode layer and said the second electrode lay are after powering up; Can form electric field between the two,, can control said changeable colour pixel region and change color through the variation of control electric field intensity.
Said changeable colour pixel region is not limited to above-mentioned several kinds, can be processed by any material that can under the effect of driving source, change color.Among the following embodiment, all cause changeable material by electricity and be made for example and describe with said changeable colour pixel region.
In order to improve the display quality of display panel, also black matrix need be set on said color membrane substrates usually, certainly, also black matrix can be set on said color membrane substrates, but will deceive arranged in matrix on the array base palte of display panel.Among the following embodiment, be that example describes all so that black matrix to be set at said color membrane substrates.
As shown in Figure 8, the present invention also provides a kind of method for making of color membrane substrates, may further comprise the steps:
Step 801 forms first electrode layer, black matrix and color rete respectively on substrate, wherein, said color rete comprises: red pixel district, green pixel district, blue pixel district and changeable colour pixel region;
Step 802 forms the second electrode lay on said black matrix and said color rete.
In the foregoing description, can form according to any order between said first electrode layer, said black matrix and said red pixel district, green pixel district, the blue pixel district, said changeable colour pixel region must form after said first electrode layer.
Said changeable colour pixel region is between said first electrode layer and said second electrode; Said first electrode layer and said the second electrode lay are after powering up; Can form electric field between the two,, can control said changeable colour pixel region and between different colours, switch through the variation of control electric field intensity.
In following examples, all can be made for example at the electrochromic material that between Transparent color (W) and yellow (Y), switches under the control of electric field and describe with said changeable colour pixel region.
Compare with said red pixel district, green pixel district, blue pixel district; The lower zone of said changeable colour pixel region has said first electrode layer; It is section poor to occur between the zone that therefore may cause said changeable colour pixel region place and the zone at said red pixel district, green pixel district, place, blue pixel district; The existence of section difference can make that the cell gap of display panel is inhomogeneous, causes occurring the mura problem.
Poor in order to eliminate the section that exists between said red pixel district, green pixel district, region, blue pixel district and the said changeable colour pixel region region, can also comprise before the above-mentioned steps 802: on said black matrix and said color rete, form first screed-coat.
Electrochromic material of a great variety, characteristics such as the color and luster light and shade of different electrochromic materials, light transmission rate are also inequality.If the yellow chrominance of electrochromic material is higher; Then use thin electrochromic material can reach the color display requirement; At this moment; The height sum of said changeable colour pixel region and said first electrode layer may be lower than the height in said red pixel district, green pixel district, blue pixel district, thus occur between the zone at the zone that causes said changeable colour pixel region place and said red pixel district, green pixel district, place, blue pixel district section poor.
When the height of said changeable colour pixel region is lower than the height in said red pixel district, green pixel district, blue pixel district; Poor in order to eliminate the section that exists between said red pixel district, green pixel district, region, blue pixel district and the said changeable colour pixel region region; Saidly before forming first electrode layer on the substrate, can also comprise: on said substrate, form second screed-coat, and then above said second screed-coat, form said first electrode layer.At this moment, the height of said changeable colour pixel region region equals the height of said red pixel district, green pixel district, region, blue pixel district.
The yellow chrominance of the electrochromic material that uses when said changeable colour pixel region is lower; Then need use thicker electrochromic material just can reach the color display requirement; At this moment; The height sum of said changeable colour pixel region and said first electrode layer may be higher than the height in said red pixel district, green pixel district, blue pixel district, thus occur between the zone at the zone that causes said changeable colour pixel region place and said red pixel district, green pixel district, place, blue pixel district section poor.
When the height sum of said changeable colour pixel region and said first electrode layer is higher than the height in said red pixel district, green pixel district, blue pixel district; Poor in order to eliminate the section that exists between said red pixel district, green pixel district, region, blue pixel district and the said changeable colour pixel region region; Saidly before forming the second electrode lay above the said color rete, can also comprise: above said red pixel district, green pixel district, blue pixel district, said black matrix, form the 3rd screed-coat, and then above said the 3rd screed-coat and said changeable colour pixel region, form said the second electrode lay.At this moment, the height of said changeable colour pixel region region equals the height of said red pixel district, green pixel district, region, blue pixel district.
In the foregoing description, can adopt photoetching process or typography to make color membrane substrates.Be example to adopt photoetching process below, the method for making of color membrane substrates is elaborated.
To adopt the color membrane substrates in the photoetching process construction drawing 2 is example, and the method for making of said color membrane substrates can may further comprise the steps:
(1) uses sputter (sputter) equipment, doing the ITO electrode on the relevant position of substrate 201, form first electrode layer 202 through sputter, photoetching process;
(2) on the relevant position of said substrate 201, form black matrix 203 through spin coating, photoetching process;
(3) successively red resin, green resin, blue resins and electrochromic material are made on the relevant position of said substrate 201 according to spin coating, exposure, development, etching, the process peeled off; Form red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207; Wherein, Changeable colour pixel region 207 is made in the top of said first electrode layer 202, and said red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207 constitute the color rete of color membrane substrates;
(4) use sputter equipment above color rete and black matrix 203, to do the ITO electrode, form the second electrode lay 208, as the pixel electrode use of color membrane substrates.
To adopt the color membrane substrates in the photoetching process construction drawing 5 is example, and the method for making of said color membrane substrates can may further comprise the steps:
(1) uses sputter equipment, doing the ITO electrode on the relevant position of substrate 201, form first electrode layer 202 through sputter, photoetching process;
(2) on the relevant position of said substrate 201, form black matrix 203 through spin coating, photoetching process;
(3) successively red resin, green resin, blue resins and electrochromic material are made on the relevant position of said substrate 201 according to spin coating, exposure, development, etching, the process peeled off; Form red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207; Wherein, The changeable colour pixel region is made in the top of said first electrode layer 202, and said red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207 constitute the color rete of color membrane substrates;
(4) transparent resin material is made in said color rete and said black matrix 203 tops according to spin coating, exposure, development, etching, the process peeled off; Form OC layer (the fat layer is counted in the bed hedgehopping levelling); I.e. first screed-coat 209, section poor with between the zone at the zone of eliminating said red pixel district, green pixel district, place, blue pixel district and changeable colour pixel region 207 places;
(5) use sputter equipment doing the ITO electrode above the OC layer, form the second electrode lay 208, as the pixel electrode use of color membrane substrates.
To adopt the color membrane substrates in the photoetching process construction drawing 6 is example, and the method for making of said color membrane substrates can may further comprise the steps:
(1) water white transparency look resistance material is made on the relevant position of substrate 201 through spin coating, photoetching process, forms second screed-coat 210;
(2) use sputter equipment, above said second screed-coat 210, do the ITO electrode, form first electrode layer 202 through sputter, photoetching process;
(3) on the relevant position of said substrate 201, form black matrix 203 through spin coating, photoetching process;
(4) successively red resin, green resin, blue resins and electrochromic material are made on the relevant position of said substrate 201 according to spin coating, exposure, development, etching, the process peeled off; Form red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207; Wherein, The changeable colour pixel region is made in the top of said first electrode layer 202, and said red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207 constitute the color rete of color membrane substrates;
(5) use sputter equipment doing the ITO electrode above the OC layer, form the second electrode lay 208, as the pixel electrode use of color membrane substrates.
To adopt the color membrane substrates in the photoetching process construction drawing 7 is example, and the method for making of said color membrane substrates can may further comprise the steps:
(1) uses sputter equipment, doing the ITO electrode on the relevant position of substrate 201, form first electrode layer 202 through sputter, photoetching process;
(2) on the relevant position of said substrate 201, form black matrix 203 through spin coating, photoetching process;
(3) successively red resin, green resin, blue resins and electrochromic material are made on the relevant position of said substrate 201 according to spin coating, exposure, development, etching, the process peeled off; Form red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207; Wherein, The changeable colour pixel region is made in the top of said first electrode layer 202, and said red pixel district 204, green pixel district 205, blue pixel district 206 and changeable colour pixel region 207 constitute the color rete of color membrane substrates;
(4) water white transparency look resistance material is made in said color rete and said black matrix 203 tops through spin coating, photoetching process, forms the 3rd screed-coat 211;
(5) use sputter equipment doing the ITO electrode above the OC layer, form the second electrode lay 208, as the pixel electrode use of color membrane substrates.
It should be noted that according to the actual process condition, can change the photoetching process mode into the typography mode, significantly to reduce cost.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (14)
1. a color membrane substrates is characterized in that, comprising:
Substrate; And
Be formed on the color rete on the said substrate, said color rete comprises: at least a color pixel district and changeable colour pixel region, said changeable colour pixel region can change color under the control of driving source.
2. color membrane substrates as claimed in claim 1 is characterized in that, said driving source is an electric field, and said color membrane substrates also comprises:
First electrode layer is arranged at the below of said changeable colour pixel region;
The second electrode lay is arranged at the top of said color rete;
Wherein, after said first electrode layer and said the second electrode lay power up, between produce electric field.
3. color membrane substrates as claimed in claim 2 is characterized in that, also comprises:
First screed-coat, it is poor to be used to eliminate the section that exists between region, said color pixel district and the said changeable colour pixel region region, is arranged between said color rete and the said the second electrode lay.
4. color membrane substrates as claimed in claim 2 is characterized in that, the height sum of said changeable colour pixel region and said first electrode layer is lower than the height in said color pixel district, and said color membrane substrates also comprises:
Second screed-coat, it is poor to be used to eliminate the section that exists between region, said color pixel district and the said changeable colour pixel region region, is arranged between said substrate and said first electrode layer.
5. color membrane substrates as claimed in claim 2 is characterized in that, the height sum of said changeable colour pixel region and said first electrode layer is higher than the height in said color pixel district, and said color membrane substrates also comprises:
The 3rd screed-coat, it is poor to be used to eliminate the section that exists between region, said color pixel district and the said changeable colour pixel region region, is arranged between said color pixel district and the said the second electrode lay.
6. color membrane substrates as claimed in claim 1 is characterized in that, said at least a color pixel district comprise in red pixel district, green pixel district or the blue pixel district one of at least.
7. like each described color membrane substrates of claim 1 to 6, it is characterized in that said changeable colour pixel region is by processing at the electrochromic material that between Transparent color and yellow, switches under the control of electric field.
8. a display panel comprises array base palte, color membrane substrates and is filled in the liquid crystal material between said display substrate and the said color membrane substrates, it is characterized in that, said color membrane substrates is each described color membrane substrates of claim 1 to 7.
9. display comprises display panel and is coupled to the driving circuit of said display panel, it is characterized in that said display panel is the described display panel of claim 8.
10. the method for making of a color membrane substrates is characterized in that, comprising:
On substrate, form color rete, said color rete comprises: at least a color pixel district and changeable colour pixel region, said changeable colour pixel region can change color under the control of driving source.
11. the method for making of color membrane substrates as claimed in claim 10 is characterized in that, said driving source is an electric field;
Saidly before forming color rete on the substrate, also comprising: on said substrate, form first electrode layer;
Saidly be specially forming color rete on the substrate: on said substrate, form said color pixel district, above said first electrode layer, form said changeable colour pixel region;
Saidly also comprise after on substrate, forming color rete: above said color rete, form the second electrode lay, wherein, after said first electrode layer and said the second electrode lay power up, between produce electric field.
12. the method for making of color membrane substrates as claimed in claim 11 is characterized in that, the said the second electrode lay that above said color rete, forms also comprises before:
At first screed-coat that is formed for eliminating the section difference that exists between region, said color pixel district and the said changeable colour pixel region region above the said color rete.
13. the method for making of color membrane substrates as claimed in claim 11 is characterized in that, the height sum of said changeable colour pixel region and said first electrode layer is lower than the height in said color pixel district;
Saidly before forming first electrode layer on the said substrate, also comprising: be formed for eliminating second screed-coat that the section that exists between region, said color pixel district and the said changeable colour pixel region region differs from the said substrate;
Saidly be specially forming first electrode layer on the said substrate: on said second screed-coat, form said first electrode layer.
14. the method for making of color membrane substrates as claimed in claim 11 is characterized in that, the height sum of said changeable colour pixel region and said first electrode layer is higher than the height in said color pixel district;
Saidly before forming the second electrode lay above the said color rete, also comprising: be formed for eliminating the 3rd screed-coat that the section that exists between region, said color pixel district and the said changeable colour pixel region region differs from above the said color pixel district;
Saidly be specially forming the second electrode lay above the said color rete: above said the 3rd screed-coat and said changeable colour pixel region, form said the second electrode lay.
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