CN110233171B - Display panel and preparation method thereof - Google Patents
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- CN110233171B CN110233171B CN201910549529.1A CN201910549529A CN110233171B CN 110233171 B CN110233171 B CN 110233171B CN 201910549529 A CN201910549529 A CN 201910549529A CN 110233171 B CN110233171 B CN 110233171B
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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Abstract
The invention provides a display panel and a preparation method thereof, belongs to the technical field of display, and can solve the problem of visual angle color cast of the conventional display panel. The display panel of the present invention includes: a light emitting assembly; the color film assembly comprises a plurality of color resistance blocks, and the color resistance blocks are used for enabling light emitted by the light emitting assembly to pass through and then be emitted out, and filtering the light to form monochromatic light; the appearance of any color block meets the following requirements: the deviation between the color coordinates of the monochromatic light emitted at any viewing angle within the predetermined viewing angle range and the color coordinates of the monochromatic light emitted at the predetermined reference viewing angle is not greater than a predetermined threshold value.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a preparation method thereof.
Background
Referring to fig. 1 and 2, taking a display panel of an Organic Light-Emitting Diode (OLED) combined with a Color Filter (CF) as an example, the display panel includes a first substrate 01 and a second substrate 02 arranged in a box, a Light-Emitting component (OLED device) 021 is arranged on the second substrate 02, a Color block 011 is arranged on the first substrate 01, Light (e.g., white Light) emitted from the Light-Emitting component 021 is filtered by the Color block 011 to form different monochromatic lights, and the different monochromatic lights are emitted, and a combination of the plurality of monochromatic lights displays a picture with Color on the display panel.
The light emitting component (OLED device) 021 has a wide light emission band, in which the attenuation degree of light of the same wavelength emitted from the same color-resisting block 011 through different viewing angles is different, so that the spectra of light emitted from the same color-resisting block 011 at different viewing angles, that is, the color coordinates are different, which causes viewing angle color shift.
In order to realize a high color gamut (high color gamut), enhance light with a specific wavelength, and narrow a spectrum, a microcavity structure is formed in the prior art. Although the microcavity structure realizes the enhancement of light with a certain wavelength and the attenuation of light with other wavelengths, the optical paths of the microcavity corresponding to different viewing angles are different, so that the wavelength of the enhanced light is also different (along with the increase of the viewing angle, the emergent spectral gain curve can shift towards the short wave direction), thereby further increasing the viewing angle color shift, and the problem is more serious especially for high-color-gamut high-resolution display panel products.
Disclosure of Invention
The invention at least partially solves the problem of viewing angle color cast of the existing display panel, and provides the display panel and the preparation method thereof, which improve the viewing angle cast of the picture displayed by the display panel, realize high color fidelity of the displayed picture, and display more color ranges, thereby improving the display quality of the display panel.
The technical scheme adopted for solving the technical problem of the invention is a display panel, which comprises:
a light emitting assembly;
the color film assembly comprises a plurality of color blocking blocks, and the color blocking blocks are used for enabling light emitted by the light emitting assembly to be emitted after passing through the color blocking blocks and filtering the light to form monochromatic light;
the appearance of any color block satisfies the following conditions: the deviation between the color coordinates of the monochromatic light emitted at any viewing angle within the predetermined viewing angle range and the color coordinates of the monochromatic light emitted at the predetermined reference viewing angle is not greater than a predetermined threshold value.
Optionally, the display panel includes a first substrate and a second substrate which are arranged in a box-to-box manner, the color film assembly is arranged on one side of the first substrate facing the second substrate, and the light emitting assembly is arranged on one side of the second substrate facing the first substrate.
Optionally, the color film assembly further includes a planarization layer disposed on the first substrate, the planarization layer is provided with a plurality of grooves, the shapes of the grooves are the same as those of the color resist blocks, and the color resist blocks are disposed in the grooves.
Optionally, the color filter assembly further includes a black matrix disposed on the first substrate, where a part of the black matrix includes a light shielding portion disposed between adjacent color filter blocks and a protrusion portion disposed on the light shielding portion, a top end of the protrusion portion is far away from the first substrate, and the protrusion portion serves as a spacer.
Optionally, the light emitting assembly includes a plurality of organic light emitting diode devices, each corresponding to one color resistor block.
Optionally, the organic light emitting diode device includes an electroluminescent layer, a cathode layer disposed between the electroluminescent layer and the color block, and an anode layer disposed on the electroluminescent layer away from the first substrate, wherein a display driving assembly is disposed between the anode layer and the second substrate.
Optionally, the predetermined reference view is a 0 ° view; the predetermined viewing angle range is a 0 ° to 60 ° viewing angle.
The technical scheme adopted for solving the technical problem of the invention is a preparation method of a display panel, which comprises the following steps:
forming a light emitting assembly and a color film assembly;
the color film assembly comprises a plurality of color blocking blocks, and the color blocking blocks are used for enabling light emitted by the light emitting assembly to be emitted after passing through the color blocking blocks and filtering the light to form monochromatic light;
the appearance of any color block satisfies the following conditions: the deviation between the color coordinates of the monochromatic light emitted at any viewing angle within the predetermined viewing angle range and the color coordinates of the monochromatic light emitted at the predetermined reference viewing angle is not greater than a predetermined threshold value.
Optionally, before forming the color film assembly, the method further includes: setting the appearance of the color block;
the setting of the appearance of the color block comprises the following steps:
preparing a test panel comprising the light-emitting component and a test color resistance block, and enabling the light-emitting component to emit light; the test color blocking block comprises a test reference part and a plurality of test parts, wherein the test reference part is used for emitting monochromatic light of a test reference visual angle, and any test part is used for emitting monochromatic light of a corresponding test visual angle within a preset visual angle range;
determining the test reference color coordinates of the monochromatic light emitted by the test reference part and the color coordinates of the monochromatic light emitted by each test part;
respectively judging whether the deviation between the color coordinate of the monochromatic light emitted by each test part and the test reference color coordinate is larger than a preset threshold value,
if not, setting the thickness of the part, corresponding to the testing part, of the color resistance block to be equal to the thickness of the testing part;
if the color coordinate of the part of the color resistance block corresponding to the test part is larger than the target color coordinate, the target color coordinate of the part of the color resistance block corresponding to the test part is set, and the thickness of the part of the color resistance block corresponding to the test part is calculated according to the target color coordinate;
and the deviation between the target color coordinate and the test reference color coordinate is not greater than the preset threshold, and the viewing angle of the monochromatic light which is used for emitting on the part of the color resistance block corresponding to the test part is the same as the test viewing angle corresponding to the test part.
Optionally, the determining the test reference color coordinates of the monochromatic light emitted by the test reference portion and the color coordinates of the monochromatic light emitted by each test portion includes:
collecting the spectrum of the light emitted by the light emitting component at each test visual angle;
collecting the spectrum of the monochromatic light emitted by the test reference part;
and calculating the test reference color coordinate of the monochromatic light at the test visual angle by using the spectrum of the light emitted by the light emitting component at any test visual angle and the spectrum of the monochromatic light emitted by the test reference part based on the tri-stimulus function.
Optionally, calculating a thickness of a portion of the color block corresponding to the test portion according to the target color coordinate includes:
calculating a target spectrum of a part of the color-resisting block corresponding to the test part by using the target color coordinates of the part of the color-resisting block corresponding to the test part based on a three-stimulus function;
calculating the target transmittance of the part, corresponding to the test part, on the color block according to the target spectrum;
and calculating the thickness of the part, corresponding to the test part, of the color block according to the target transmittance.
Optionally, forming the color film assembly includes:
forming a planarization layer on a first substrate;
forming a plurality of grooves on the planarization layer, wherein the grooves correspond to positions where the color resist blocks are scheduled to be formed, and the shapes of the grooves are the same as the shapes of the color resist blocks scheduled to be formed;
and forming the color block in each groove respectively.
Drawings
FIG. 1 is a schematic structural diagram of a conventional display panel;
FIG. 2 is a schematic diagram of a conventional display panel in which light emitting elements emit light toward a conventional color block (test color block);
FIG. 3 is a schematic diagram of a light emitting device emitting light to a color resist in embodiment 1 of a display panel according to the present invention;
fig. 4 is a schematic structural diagram of a display panel in embodiment 1 of the display panel provided in the present invention;
FIG. 5 is a flowchart of determining the morphology of a color resist block to be formed in embodiment 2 of the method for manufacturing a display panel according to the present invention;
fig. 6 is a flowchart for determining the thickness of a color resist block to be formed in embodiment 2 of the method for manufacturing a display panel according to the present invention;
fig. 7 is a flowchart of forming a color film assembly in embodiment 2 of the method for manufacturing a display panel according to the present invention;
wherein the reference numbers indicate: 001. testing the color block; 01. a first substrate; 011. a color block; 011R, red color block; 011G, green color block; 011B, blue color block; 012. a planarization layer; 013. a black matrix; 02. a second substrate; 021. a light emitting device.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
Example 1:
referring to fig. 3 and 4, the present embodiment provides a display panel including:
a light emitting component 021;
the color film assembly comprises a plurality of color resistance blocks 011, wherein the color resistance blocks 011 are used for enabling light emitted by the light emitting assembly 021 to pass through and then be emitted out, and filtering the light to form monochromatic light;
the appearance of any color block 011 meets the following conditions: the deviation between the color coordinates of the monochromatic light emitted at any viewing angle within the predetermined viewing angle range and the color coordinates of the monochromatic light emitted at the predetermined reference viewing angle is not greater than a predetermined threshold value.
The description of the viewing angle color cast of the display panel is as follows:
the color filter assemblies have different functions (colors) in the color filter 011, and the color filter 011 of different functions (colors) can filter the light emitted from the light emitting assembly 021 into monochromatic light of corresponding color (i.e. light with wavelength mainly concentrated in a narrow range), for example, the color filter 011 in the display panel of fig. 4 can include: the light emitting device includes a red color block 011R, a green color block 011G, and a blue color block 011B, wherein the red color block 011R is used to filter the light emitted from the light emitting element 021 into red light (monochromatic light), and similarly, the green color block 011G is used to filter the light emitted from the light emitting element 021 into green light (monochromatic light), and the blue color block 011B is used to filter the light emitted from the light emitting element 021 into blue light (monochromatic light).
Since the colors displayed on the display panel are mixed by monochromatic lights (i.e., primary lights, such as red, blue, and green lights) of the respective colors, if the colors (e.g., color coordinates) of the monochromatic lights passing through the respective color blocks 011 are shifted, color shift occurs and the color gamut is affected.
For example, the color coordinates may be color coordinates in CIE 1931 xyZ color space proposed by the international commission on illumination (CIE).
In the above-described scheme, the profile of the color block 011 satisfies the standard of the color gamut (particularly, the color gamut at different viewing angles) that the deviation between the color coordinates of the monochromatic light emitted at any viewing angle within the predetermined viewing angle range and the color coordinates of the monochromatic light emitted at the predetermined reference viewing angle is not larger than the predetermined threshold value, that is, the profile (thickness, for example, d0 and d1) of the portion of the color block 011 for emitting the monochromatic light within the predetermined viewing angle range is not the same, that is, the transmittance of the portion of the color block 011 is approximately the same, and thus the color coordinates of the light emitted from the positions of the same color block 011 at each viewing angle are very close, so that the viewing angle color shift is small.
Therefore, the scheme improves the problem of visual angle color cast of the display panel in a preset visual angle range by setting the appearance of the color blocking blocks 011, thereby realizing that the display panel outputs high-color-gamut pictures with high color fidelity.
Preferably, the color coordinates of the light emitted at the predetermined reference viewing angle are the standard, for example, the standard may be the color coordinates of three primary colors in the chromaticity specification sRGB, where the color coordinates of red are R (0.64,0.33), the color coordinates of green are G (0.3,0.6), and the color coordinates of blue are B (0.15, 0.06).
The viewing angle is the angle at which people watch the display panel, and the included angle between the emitted light and the normal of the substrate is taken as the viewing angle.
Alternatively, the predetermined reference viewing angle may be a 0 ° viewing angle, and the predetermined viewing angle range may be 0 ° to 60 ° according to a viewing demand of a large-sized display panel. Referring to fig. 2 and 3, for ease of distinction, the 0 ° to 60 ° viewing angles on the left side in the figures are labeled as 0 ° to-60 ° viewing angles.
Optionally, the display panel includes a first substrate 01 and a second substrate 02 arranged in a box-to-box manner, the color film assembly is arranged on one side of the first substrate 01 facing the second substrate 02, and the light emitting assembly 021 is arranged on one side of the second substrate 02 facing the first substrate 01.
Of course, the color film component and the light emitting component 021 of the display panel can also be arranged on the same substrate.
Optionally, the color film assembly further includes a planarization layer 012 disposed on the first substrate 01, the planarization layer 012 is provided with a plurality of grooves, the shapes of the grooves are the same as those of the color resistor block 011, and the color resistor block 011 is disposed in the grooves.
In this scheme, the surface of the planarization layer 012, which is away from the first substrate 01, is flush with the surface of the color resist block 011, which is away from the first substrate 01, and the planarization layer 012 has a certain protection effect on the color resist block 011.
Optionally, a plurality of color resist blocks 011 are arranged at intervals, the color filter assembly further includes a black matrix 013 arranged on the first substrate 01, the partial black matrix 013 includes a light shielding portion arranged between adjacent color resist blocks 011 and a protrusion portion arranged on the light shielding portion, a top end of the protrusion portion is far away from the first substrate 01, and the protrusion portion is used as a spacer.
In the above scheme, the spacer of the spacer layer needs to have a certain density (i.e. a certain gap is needed between the spacers), so that part of the black matrix 013 has a protrusion which is used as the spacer, the material of the spacer is the same as that of the light shielding part, the color of the spacer is the same as that of the light shielding part, and both the light shielding part and the spacer are black (normally, the spacer is transparent), i.e. the light shielding part and the spacer are of an integrated structure (integrated molding), so that the light insulating effect of the black matrix 013 on the color barrier 011 is enhanced, the effect of the spacer for maintaining the thickness of the color film assembly box is also achieved, and meanwhile, the spacer is not required to be prepared separately, so that the process for forming the spacer is simplified.
Optionally, the light emitting assembly 021 includes a plurality of organic light emitting diode devices, each corresponding to one color blocker 011.
Alternatively, the organic light emitting diode device includes an electroluminescent layer, a cathode layer disposed between the electroluminescent layer and the color-resist block 011, and an anode layer disposed at the electroluminescent layer apart from the first substrate 01, wherein a display driving assembly is disposed between the anode layer and the second substrate 02.
In the above scheme, the display panel uses an organic light emitting diode device as a light source, and the Electroluminescent Layer (EL) is top-emitting, so the electroluminescent layer is far away from the color block 011, and therefore the color shift phenomenon is more serious in the top-emitting OLED display panel than in the bottom-emitting OLED display panel.
Of course, the display panel is not limited to the top emission OLED display panel, and the condition that the appearance of the color resist block 011 in the above scheme satisfies is applied to any display panel with a color film assembly.
The light emitted by the electroluminescent layer is white light, and the electroluminescent layer emitting white light is particularly suitable for large-size display panels.
It should be noted that, since the structure of each color block 011 in the display panel in this embodiment is the same and the filtering principle of the light emitted from the light emitting element 021 is also the same, the present embodiment only describes the structure of one color block 011 in detail, and fig. 3 also shows a schematic diagram of only one color block 011. In addition, one side of the first substrate 01 may be regarded as a light emitting side of the display panel.
Specifically, the display panel can be any product or component with a display function, such as a liquid crystal display panel, an OLED display panel, electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
Example 2:
the present embodiment provides a method for manufacturing a display panel, where product forms of the display panel can be shown in fig. 3 and fig. 4, the method for manufacturing a display panel includes:
step 11, forming a light emitting component 021 and a color film component;
the color film assembly comprises a plurality of color resistance blocks 011, wherein the color resistance blocks 011 are used for enabling light emitted by the light emitting assembly 021 to pass through and then be emitted out, and filtering the light to form monochromatic light;
the appearance of any color block 011 meets the following conditions: the deviation between the color coordinates of the monochromatic light emitted at any viewing angle within the predetermined viewing angle range and the color coordinates of the monochromatic light emitted at the predetermined reference viewing angle is not greater than a predetermined threshold value.
In the scheme, the thicknesses of all parts on the color resistance block 011 are different, and the thicknesses of all parts are set according to the target transmittance of the parts, so that the deviation of the color coordinate of the monochromatic light at the preset visual angle emitted by the color resistance block 011 and the reference coordinate is not greater than a preset threshold value, namely, the color deviation of the monochromatic light at any visual angle in the preset visual angle range is within an acceptable range, and the problem of the visual angle color deviation of the display panel is solved.
Optionally, before forming the color filter assembly in step 11, the method further includes: setting the appearance of the color block 011;
referring to fig. 5, setting the profile of the color block 011 comprises:
10a, preparing a test panel comprising a light-emitting component 021 and a test color resistance block 001, and enabling the light-emitting component to emit light; the test color resistance block 001 comprises a test reference part and a plurality of test parts, wherein the test reference part is used for emitting monochromatic light under a test reference visual angle; the arbitrary test portion is used for emitting monochromatic light of a test viewing angle corresponding to the arbitrary test portion within a predetermined viewing angle range.
In this step, the test panel is a simple structure (only including a portion of the display panel), as long as monochromatic light can be emitted, and includes a light emitting component 021 and a color filter component, where the color filter component includes a transparent substrate (such as a glass substrate) and a plurality of test color resist blocks 001 of different colors disposed on the transparent substrate, and these test color resist blocks 001 may be disposed on the transparent substrate by a spin coating process. Therefore, the forming process of the test panel in the step is simpler, and the preparation method of the display panel is simpler.
The appearance of the test color-resisting block 001 can be seen in fig. 1 and fig. 2, that is, the dimensions (thickness) between the light-incident side and the light-emitting side of the test color-resisting block 001 in the vertical direction are d 0.
Meanwhile, the test reference portion is used to emit monochromatic light of a predetermined angle, which is generally a main viewing angle, for example, a viewing angle of 0 ° (facing the display panel). Preferably, as before, the test reference portion emits color coordinates that do not deviate (or deviate within an error range) from the color coordinates of the three primary colors in the chromaticity specification sRGB. Meanwhile, the predetermined viewing angle range may be 0 ° to 60 °.
And 10b, determining the test reference color coordinates of the monochromatic light emitted by the test reference part and the color coordinates of the monochromatic light emitted by each test part.
In this step, the reference color coordinates of the monochromatic light emitted from the predetermined reference portion and the color coordinates of the monochromatic light emitted from each test portion may be calculated using equations of the color coordinates (x, y), respectively.
The choice of test viewing angle, i.e. the choice of test portion, may be such that every 15 deg. of the test viewing angle is within a predetermined range of viewing angles, e.g. the test viewing angle comprises-60 deg. -45 deg. -30 deg. … … 15-15 deg. -30 deg. … … 60 deg.. Of course, in order to make the appearance of the formed color-resisting block 011 better improve the problem of viewing angle deviation, the degree difference between two tested viewing angles of adjacent degrees can be smaller, for example: every two adjacent degrees are separated by 5 °, or every two adjacent degrees are separated by 3 °, or further every two adjacent degrees are separated by 1 °.
And 10c, respectively judging whether the deviation between the color coordinates of the monochromatic light emitted by each test part and the test reference color coordinates is larger than a preset threshold value.
10d, if not, setting the thickness of the part of the color resist block 011 corresponding to the test part to be equal to the thickness of the test part.
The thickness of the portion of the color resist block 011 corresponding to the test portion is set to be equal to the thickness of the test portion, and may be, for example, such that the deviation between the color coordinates of the monochromatic light of the 0 ° to 45 ° viewing angle emitted from the test portion of the test color resist block 001 and the test reference color coordinates is not greater than a predetermined threshold value, and the appearance of the portion of the color resist block 011 for emitting the monochromatic light of the 0 ° to 45 ° viewing angle is the same as the appearance of the portion of the test color resist block 001 for emitting the monochromatic light of the 0 ° to 45 ° viewing angle.
If the value is more than 10e, the target color coordinate of the portion of the resist block 011 corresponding to the test portion is set, and the thickness of the portion of the resist block 011 corresponding to the test portion is calculated based on the target color coordinate.
The deviation between the target color coordinate and the test reference color coordinate is not greater than a predetermined threshold, and the viewing angle of the monochromatic light emitted from the portion of the color resist block 011 corresponding to the test portion is the same as the test viewing angle corresponding to the test portion.
In this step, the thickness d1 of the portion of the color block 011, which has the same viewing angle as the test viewing angle corresponding to the test portion, is determined by the target color coordinates of the portion of the color block 011 corresponding to the test portion (the deviation between the color coordinates of the monochromatic light emitted from the test portion and the test reference color coordinates is greater than the predetermined threshold), and thus the color shift (i.e., the deviation between the color coordinates and the reference color point) of the monochromatic light emitted from the portion of the color block 011, which is used to emit the monochromatic light within the predetermined viewing angle range, is improved. Preferably, the reference color coordinates are used as target color coordinates.
Optionally, step 10b comprises:
10b1, collecting the spectrum of the light emitted by the light emitting component 021 at each test viewing angle, and collecting the spectrum of the test reference part.
10b2, calculating test reference color coordinates of monochromatic light at a test viewing angle based on the tristimulus function using the spectrum of light emitted from the light emitting element 021 at the test viewing angle and the spectrum of the test reference portion.
In the above scheme, the test color resistance block 001 adopts color resistance blocks with the same thickness at each position, and the thickness of each test part of the test color resistance block 001 is the same as that of the test reference part, so that the calculation process of the test reference color coordinate of the monochromatic light at each test visual angle is simplified, and the test reference color coordinate of the monochromatic light at any test visual angle can be calculated by using the spectrum of the test reference part only by collecting the spectrum of the test reference part.
Alternatively, referring to fig. 6, the step 10e of calculating the thickness of the portion of the resist block 011 corresponding to the test portion based on the target color coordinates includes:
step 10e1, based on the tristimulus function, calculates a target spectrum of a portion of the color block 011 corresponding to the test portion using the target color coordinates of the portion of the color block 011 corresponding to the test portion.
Specifically, the equations of a color coordinate (x, y) in CIE 1931 xyZ chromaticity space are expressed as formulas (1) and (2), so only color and not brightness are considered, and the color coordinate only takes the values of x, y:
x, Y, Z in the above equations (1) and (2) is a tristimulus function, wherein the equation for X is equation (3):
wherein the equation of Y is formula (4):
wherein the equation for Y is formula (5):
in the formula, k is a coefficient,
the brightness function of the color block which is formed in advance;
λ is the wavelength of the light and,
represents the summation over the wavelength range (visible wavelengths) from 380nm to 780 nm;
p (λ) is a spectral function of light emitted by the light emitting assembly at any viewing angle;
r (lambda) is a transmission spectrum function of the color resistance block;
Therefore, the color coordinate and the light transmission spectrum function of the color resistance block 011 have a certain corresponding relation, so that the target spectrum can be calculated according to the target color coordinate of the part, corresponding to the test part, on the color resistance block in the step.
Step 10e2, calculating the target transmittance of the portion of the color resist block 011 corresponding to the test portion based on the target spectrum.
Specifically, the transmission spectrum function R (λ) is represented by a spectrum-transmittance coordinate, the abscissa of the spectrum-transmittance coordinate is the spectrum length, and the ordinate is the transmittance of the color resist block 011, that is, the transmission spectrum function R (λ) of the color resist block 011 is related to the transmittance of the color resist block 011, so that the target transmittance thereof can be calculated from the target spectrum of the portion of the color resist block 011 corresponding to the test portion in this step.
Step 10e3, calculating the thickness of the portion of the color resist block 011 corresponding to the test portion according to the target transmittance.
Specifically, the color resistance block 011 includes a predetermined reference portion for emitting monochromatic light at a predetermined reference viewing angle and a plurality of first portions for emitting monochromatic light within a predetermined viewing angle, the transmittance and thickness of the first portions and the transmittance and thickness of the predetermined reference portion satisfying formula (6):
d0/d1＝LnT1/LnT0 (6)
wherein d0 is the thickness of the reference test portion;
t0 is the transmittance of the reference test portion;
t1 is the target transmittance of the first part;
d1 is the thickness of the first portion.
The transmittance T0 and the thickness d0 of the predetermined reference part of the color-resisting block 011 are respectively the same as the transmittance and the thickness of the test reference part of the test color-resisting block 001, so that the thickness d1 of the first part, namely the thickness of the part corresponding to the test part on the color-resisting block 011 can be calculated according to the formula (6) under the condition that the target transmittance of the first part is obtained by calculation and the transmittance and the thickness of the test reference part of the test color-resisting block 001 are acquired.
In this embodiment, the test portion is a test portion in which the deviation between the color coordinate of the monochromatic light emitted from the test color resist block 001 and the reference color coordinate is greater than a predetermined threshold.
Of course, the test portion judged in step 10c that the deviation between the color coordinates of the individual light emitted therethrough and the reference color coordinates is not more than the predetermined threshold value may also have its thickness d1 determined using the above-described steps 10e1 to 10e 4.
Optionally, referring to fig. 7, the forming a color filter assembly in step 11 includes:
and 11d, forming color stop blocks 011 in the grooves respectively.
In the above scheme, before the formation of the color resist block 011 on the first substrate 01, the planarization layer 012 can be formed on the first substrate 01 by a nanoimprint or halftone (half-tone) process, the shape of the groove is determined according to the shape of the color resist block 011 to be formed, and the color resist block 011 is formed in the groove, so that the shape of the color resist block 011 is defined by the shape of the groove, and therefore, the shape of the formed color resist block 011 is relatively accurate, and the process of forming the color resist block 011 is relatively simple.
Optionally, in the forming of the color filter assembly in step 11, before the forming of the planarization layer 012, the method further includes: step 11a, forming a black matrix 013 on the first substrate 01, the black matrix 013 including a light shielding portion disposed between adjacent color-resist blocks 011 and a protruding portion disposed on the light shielding portion, a tip of the protruding portion being distant from the first substrate 01, the protruding portion serving as a spacer.
In this step, the black matrix 013 may be formed by a half-tone (half-tone) screen printing process, and the spacer of the black matrix 013 corresponds to the spacer, so that a step of forming the spacer on the black matrix 013 again is omitted, and a process of forming the spacer is simplified.
Of course, alternatively, the above-mentioned method for manufacturing a display panel may further include forming the light emitting assembly 021 on the second substrate 02, and the first substrate 01 and the second substrate 02 form a pair cell structure.
It should be noted that the test color resistance block 001 in the present embodiment is not limited to the shapes shown in fig. 1 and fig. 2, as long as the monochromatic light emitted from the predetermined reference position at the predetermined reference viewing angle has no color shift.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While embodiments in accordance with the invention have been described above, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A method for manufacturing a display panel, comprising:
forming a light emitting assembly and a color film assembly;
the color film assembly comprises a plurality of color blocking blocks, and the color blocking blocks are used for enabling light emitted by the light emitting assembly to be emitted after passing through the color blocking blocks and filtering the light to form monochromatic light;
the appearance of any color block satisfies the following conditions: the deviation between the color coordinates of the monochromatic light emitted at any view angle within the preset view angle range and the color coordinates of the monochromatic light emitted at the preset reference view angle is not greater than a preset threshold value; the predetermined reference view angle is a 0 ° view angle; the predetermined viewing angle range is from 0 ° to 60 ° viewing angle;
before forming the color film assembly, the method further comprises the following steps: setting the appearance of the color block;
the setting of the appearance of the color block comprises the following steps:
preparing a test panel comprising the light-emitting component and a test color resistance block, and enabling the light-emitting component to emit light; the test color blocking block comprises a test reference part and a plurality of test parts, wherein the test reference part is used for emitting monochromatic light of a test reference visual angle, and any test part is used for emitting monochromatic light of a corresponding test visual angle within a preset visual angle range;
determining the test reference color coordinates of the monochromatic light emitted by the test reference part and the color coordinates of the monochromatic light emitted by each test part;
respectively judging whether the deviation between the color coordinate of the monochromatic light emitted by each test part and the test reference color coordinate is larger than a preset threshold value,
if not, setting the thickness of the part, corresponding to the testing part, of the color resistance block to be equal to the thickness of the testing part;
if the color coordinate of the part of the color resistance block corresponding to the test part is larger than the target color coordinate, the target color coordinate of the part of the color resistance block corresponding to the test part is set, and the thickness of the part of the color resistance block corresponding to the test part is calculated according to the target color coordinate;
and the deviation between the target color coordinate and the test reference color coordinate is not greater than the preset threshold, and the viewing angle of the monochromatic light which is used for emitting on the part of the color resistance block corresponding to the test part is the same as the test viewing angle corresponding to the test part.
2. The method for manufacturing a display panel according to claim 1, wherein the determining the test reference color coordinates of the monochromatic light emitted from the test reference portion and the color coordinates of the monochromatic light emitted from each of the test portions comprises:
collecting the spectrum of the light emitted by the light emitting component at each test visual angle;
collecting a spectrum of the test reference portion;
and calculating the test reference color coordinate of the monochromatic light at the test visual angle based on the tristimulus function by using the spectrum of the light emitted by the light emitting component at any test visual angle and the spectrum of the test reference part.
3. The method for manufacturing a display panel according to claim 1, wherein calculating the thickness of the portion of the color resist block corresponding to the test portion based on the target color coordinates comprises:
calculating a target spectrum of a part of the color-resisting block corresponding to the test part by using the target color coordinates of the part of the color-resisting block corresponding to the test part based on a three-stimulus function;
calculating the target transmittance of the part, corresponding to the test part, on the color block according to the target spectrum;
and calculating the thickness of the part, corresponding to the test part, of the color block according to the target transmittance.
4. The method for manufacturing a display panel according to claim 1, wherein forming the color film assembly comprises:
forming a planarization layer on a first substrate;
forming a plurality of grooves on the planarization layer, wherein the grooves correspond to positions where the color resist blocks are scheduled to be formed, and the shapes of the grooves are the same as the shapes of the color resist blocks scheduled to be formed;
and forming the color block in each groove respectively.
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| CN110610956B (en) * | 2019-08-26 | 2021-11-02 | 深圳市华星光电半导体显示技术有限公司 | Color film and preparation method thereof |
| CN111613647B (en) * | 2020-04-24 | 2023-12-19 | 合肥维信诺科技有限公司 | Display panel |
| CN111554710A (en) * | 2020-04-27 | 2020-08-18 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN112701138B (en) * | 2020-12-25 | 2022-09-02 | 湖北长江新型显示产业创新中心有限公司 | Display panel, preparation method thereof and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742329A (en) * | 2016-03-07 | 2016-07-06 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display apparatus |
| KR20170049761A (en) * | 2015-10-28 | 2017-05-11 | 엘지디스플레이 주식회사 | Organic light emitting display panel and organic light emitting display device |
| CN107589583A (en) * | 2017-09-15 | 2018-01-16 | 惠科股份有限公司 | A kind of display panel and its manufacture method |
| CN107819010A (en) * | 2016-09-13 | 2018-03-20 | 三星显示有限公司 | Display device |
| CN107845668A (en) * | 2017-11-14 | 2018-03-27 | 京东方科技集团股份有限公司 | A kind of organic EL display panel and preparation method thereof and display device |
| CN109698223A (en) * | 2018-12-26 | 2019-04-30 | 上海天马微电子有限公司 | A kind of display panel and display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334495B (en) * | 2007-06-25 | 2011-06-15 | 胜华科技股份有限公司 | Optical filtering film |
| CN105336308A (en) * | 2015-12-11 | 2016-02-17 | 深圳Tcl数字技术有限公司 | Color calibration method and system for display equipment |
-
2019
- 2019-06-24 CN CN201910549529.1A patent/CN110233171B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170049761A (en) * | 2015-10-28 | 2017-05-11 | 엘지디스플레이 주식회사 | Organic light emitting display panel and organic light emitting display device |
| CN105742329A (en) * | 2016-03-07 | 2016-07-06 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display apparatus |
| CN107819010A (en) * | 2016-09-13 | 2018-03-20 | 三星显示有限公司 | Display device |
| CN107589583A (en) * | 2017-09-15 | 2018-01-16 | 惠科股份有限公司 | A kind of display panel and its manufacture method |
| CN107845668A (en) * | 2017-11-14 | 2018-03-27 | 京东方科技集团股份有限公司 | A kind of organic EL display panel and preparation method thereof and display device |
| CN109698223A (en) * | 2018-12-26 | 2019-04-30 | 上海天马微电子有限公司 | A kind of display panel and display device |
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