CN112859224A - Color filter and display module - Google Patents

Color filter and display module Download PDF

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Publication number
CN112859224A
CN112859224A CN202110235378.XA CN202110235378A CN112859224A CN 112859224 A CN112859224 A CN 112859224A CN 202110235378 A CN202110235378 A CN 202110235378A CN 112859224 A CN112859224 A CN 112859224A
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Prior art keywords
red
photoresist
transmittance
green
blue
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龚文亮
黄晓雯
周菁
王雷
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • G02B5/22Absorbing filters
    • G02B5/223Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06Polymerisation of acrylate or methacrylate esters on to polymers thereof

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Abstract

The application provides a color filter and a display module, and the color filter includes red photoresistor, green photoresistor, blue photoresistor, through improving pigment kind and the proportion of red photoresistor, green photoresistor, and blue photoresistor, has improved the transmittance spectral characteristic of color filter under the incident ray irradiation of different wavelength, has strengthened the absorption of color filter to ambient light.

Description

Color filter and display module
Technical Field
The application relates to the technical field of color filters, in particular to a color filter and a display module.
Background
The POL-less technology which uses a color filter to replace a polarizer is adopted, and the POL-less technology can not only reduce the thickness of a functional layer from-100 mu m to less than 5 mu m; and the light extraction rate can be improved from 42% to 60%. However, compared with the polarizer, the color film technology has high surface reflectivity and low contrast under strong light, which is not favorable for outdoor display. The color filter consists of a red color resistor, a green color resistor, a blue color resistor and a black matrix. In the OLED panel, the red color resistance, the green color resistance and the blue color resistance respectively bear the light emitting of the R/G/B sub-pixel units of the corresponding light emitting devices; the black matrix mainly plays a role in preventing light leakage of the panel and reducing reflection of the panel.
The color filter itself can absorb most of the ambient light, but there is still the light of the "corresponding color" that cannot be absorbed, resulting in higher reflectivity and reduced contrast of the display. The patent proposes a method for narrowing the transmission spectrum of a color filter by combining the visual function of human eyes and the characteristics of different displays, and the transmittance of the color filter for emitting light of a pixel is not influenced while the absorption of the filter for ambient light is enhanced and the reflectivity is reduced.
Therefore, the conventional color filter has the technical problems of high reflectivity and less absorption of ambient light.
Disclosure of Invention
The embodiment of the application provides a color filter and a display module, which can solve the technical problems of high reflectivity and less absorption of ambient light of the existing color filter.
The embodiment of the application provides a color filter, the composition of the color filter comprises a solvent, a high molecular oligomer, a cross-linking agent, a pigment and a photoinitiator, and the color filter comprises:
the pigment of the red light resistance is pigment red 177 and pigment red 254, the ratio of the mass of the pigment red 177 to the total mass of the red light resistance ranges from 6% to 8%, and the ratio of the mass of the pigment red 254 to the total mass of the red light resistance ranges from 6% to 8%;
the pigment of the green light resistance is phthalocyanine green and pigment yellow-138, the ratio of the mass of the phthalocyanine blue-15 to the total mass of the green light resistance ranges from 10% to 15%, and the ratio of the mass of the pigment yellow-138 to the total mass of the green light resistance ranges from 8% to 12%;
the pigment of the blue light resistance is phthalocyanine blue-15, and the ratio of the mass of the phthalocyanine blue-15 to the total mass of the blue light resistance ranges from 10% to 15%.
Optionally, in some embodiments of the present application, the solvent is at least one of propylene glycol methyl ether acetate, diethylene glycol methyl ethyl ether, and 3-methoxybutyl acetate, the high molecular oligomer is at least one of methyl methacrylate polymer and methyl acrylate, the crosslinking agent is at least one of polydipentaerythritol pentaacrylate and ethoxylated trimethylolpropane triacrylate, and the photoinitiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
The embodiment of the application provides a display module, including as in claim 1 and claim 2 color filter, display panel, apron, display panel includes blue sub-pixel, green sub-pixel, red sub-pixel, wherein, blue sub-pixel with blue photoresistor corresponds the setting, green sub-pixel with green photoresistor corresponds the setting, red sub-pixel with red photoresistor corresponds the setting, wherein, the transmittance peak value wavelength of blue photoresistor and the absolute value of the emission peak wavelength difference of blue sub-pixel, the transmittance peak value wavelength of green photoresistor and the absolute value of the emission peak wavelength difference of green sub-pixel, the transmittance peak value wavelength of red photoresistor and the absolute value of the emission peak wavelength difference of red sub-pixel all are less than 2 nanometers.
Optionally, in some embodiments of the present application, a transmittance peak of the blue photoresist ranges from 55% to 70%.
Optionally, in some embodiments of the present application, a half-peak width of the blue photoresist ranges from 60 nm to 90 nm.
Optionally, in some embodiments of the present application, the transmittance peak of the green photoresist ranges from 55% to 70%.
Optionally, in some embodiments of the present application, the half-peak width of the green photoresist has a value ranging from 55 nm to 76 nm.
Optionally, in some embodiments of the present application, the transmittance of the green photoresist ranges from 50% to 70% at an incident light wavelength of 550 nm.
Optionally, in some embodiments of the present application, the transmittance peak of the red photoresist ranges from 55% to 70%.
Optionally, in some embodiments of the present application, when the wavelength of the incident light is 600 nm, the transmittance of the red photoresist ranges from 20% to 40%; when the wavelength of the incident light of the red light resistor is 590 nanometers, the transmittance ranges from 3% to 14%, and when the wavelength of the incident light of the red light resistor is 590 nanometers, the transmittance ranges from 0.1% to 2%; when the wavelength of the incident light of the red photoresist is 550 nanometers, the transmittance ranges from 0% to 0.5%.
The color filter provided by the embodiment of the application comprises a red light resistor, a green light resistor and a blue light resistor, wherein the pigments of the red light resistor are pigment red 177 and pigment red 254, the ratio range of the mass of the pigment red 177 to the total mass of the red light resistor is 6-8%, the ratio range of the mass of the pigment red 254 to the total mass of the red light resistor is 6-8%, the pigments of the green light resistor are phthalocyanine green and pigment yellow-138, the ratio range of the mass of the phthalocyanine blue-15 to the total mass of the green light resistor is 10-15%, the ratio range of the mass of the pigment yellow-138 to the total mass of the green light resistor is 8-12%, the pigment of the blue light resistor is phthalocyanine blue-15, and the ratio range of the mass of the phthalocyanine blue-15 to the total mass of the blue light resistor is 10-15%; the transmittance spectral characteristics of the color filter under the irradiation of incident light rays with different wavelengths are improved by improving the types and the proportions of the red light resistance pigment, the green light resistance pigment and the blue light resistance pigment, and the absorption of the color filter to ambient light is enhanced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a color filter provided in an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a display module according to an embodiment of the present disclosure;
FIG. 3 is a first transmittance characteristic diagram of a color filter/display module according to an embodiment of the present disclosure;
FIG. 4 is a second transmittance characteristic diagram of a color filter/display module according to an embodiment of the present disclosure;
FIG. 5 is a third transmittance characteristic diagram of a color filter/display module according to an embodiment of the present disclosure;
FIG. 6 is a graph comparing transmittance characteristics of blue photoresist of a color filter/display module according to an embodiment of the present disclosure;
FIG. 7 is a graph showing a comparison of transmittance characteristics of red photoresist of a color filter/display module according to an embodiment of the present disclosure;
FIG. 8 is a graph showing a comparison of transmittance characteristics of green photoresist of a color filter/display module according to an embodiment of the present disclosure.
Description of reference numerals:
Figure BDA0002959784840000041
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a color filter and a display module. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
As shown in fig. 1, the color filter 1 provided by the present embodiment includes a red photoresist 103, a green photoresist 102, and a blue photoresist 101, the pigment of the red light resistance 103 is pigment red 177 and pigment red 254, the ratio of the mass of the pigment red 177 to the total mass of the red light resistance 103 is 6-8%, the ratio of the mass of the pigment red 254 to the total mass of the red photoresist 103 ranges from 6% to 8%, the pigment of the green light resistance 102 is phthalocyanine green and pigment yellow-138, the ratio of the mass of the phthalocyanine blue-15 to the total mass of the green light resistance 102 is 10-15%, the ratio of the mass of the pigment yellow-138 to the total mass of the green photoresist 102 ranges from 8% to 12%, the pigment of the blue photoresist 101 is phthalocyanine blue-15, and the ratio of the mass of the phthalocyanine blue-15 to the total mass of the blue photoresist 101 is 10-15%.
In the present embodiment, the color filter 1 includes the following components: solvent, high molecular oligomer, cross-linking agent, pigment and photo initiator, wherein the color filter 1 comprises a red photoresist 103, a green photoresist 102 and a blue photoresist 101, the pigment of the red light resistance 103 is pigment red 177 and pigment red 254, the ratio of the mass of the pigment red 177 to the total mass of the red light resistance 103 is 6-8%, the ratio of the mass of the pigment red 254 to the total mass of the red photoresist 103 ranges from 6% to 8%, the pigment of the green light resistance 102 is phthalocyanine green and pigment yellow-138, the ratio of the mass of the phthalocyanine blue-15 to the total mass of the green light resistance 102 is 10-15%, the ratio of the mass of the pigment yellow-138 to the total mass of the green photoresist 102 ranges from 8% to 12%, the pigment of the blue photoresist 101 is phthalocyanine blue-15, and the ratio of the mass of the phthalocyanine blue-15 to the total mass of the blue photoresist 101 is 10-15%; the types and proportions of the red light resistance 103 pigment, the green light resistance 102 pigment and the blue light resistance 101 pigment are improved, so that the transmittance spectral characteristics of the color filter 1 under the irradiation of incident light rays with different wavelengths are improved, and the absorption of the color filter 1 to ambient light is enhanced.
Wherein, the color filter 1 further comprises a black matrix layer 104.
A black matrix layer 104 is disposed between adjacent light resistors, the black matrix layer 104 has functions of preventing light leakage of the panel and reducing reflection of the panel, and the light resistors include the red light resistor 103, the green light resistor 102, and the blue light resistor 101.
In one embodiment, the solvent may be at least one of propylene glycol methyl ether acetate, diethylene glycol methyl ethyl ether, and 3-methoxybutyl acetate, the polymer oligomer may be at least one of methyl methacrylate polymer and methyl acrylate, the crosslinking agent may be at least one of polydipentaerythritol pentaacrylate and ethoxylated trimethylolpropane triacrylate, and the photoinitiator may be at least one of azobisisobutyronitrile and azobisisoheptonitrile.
In the color filter 1 provided by the present application, the absorption of ambient light by the color filter 1 is enhanced by improving the types and proportions of the pigments of the color filter 1.
In one embodiment, the absolute value of the difference between the wavelength of the transmittance peak of the blue photoresist 101 and the wavelength of the emission peak of the incident light from the blue photoresist 101 is less than 2 nm.
In one embodiment, the transmittance peak of the blue photoresist 101 ranges from 55% to 70%.
In one embodiment, the half-peak width of the blue photoresist 101 ranges from 60 nm to 90 nm.
In one embodiment, the absolute value of the difference between the wavelength of the peak transmittance of the green photoresist 102 and the wavelength of the peak emission of the incident light from the green photoresist 102 is less than 2 nm.
In one embodiment, the transmittance peak of the green photoresist 102 ranges from 55% to 70%.
In one embodiment, the half-peak width of the green photoresist 102 ranges from 55 nm to 76 nm.
In one embodiment, the transmittance of the green photoresist 102 at the wavelength of 550 nm is in the range of 50% to 70%.
In one embodiment, the absolute value of the difference between the wavelength of the transmittance peak of the red photoresist 103 and the wavelength of the emission peak of the incident light from the red photoresist 103 is less than 2 nm.
In one embodiment, the transmittance peak of the red photoresist 103 ranges from 55% to 70%.
In one embodiment, when the wavelength of the incident light is 600 nm, the transmittance of the red photoresist 103 ranges from 20% to 40%; when the wavelength of the incident light of the red photoresist 103 is 590 nm, the transmittance ranges from 3% to 14%, and when the wavelength of the incident light of the red photoresist 103 is 590 nm, the transmittance ranges from 0.1% to 2%; when the wavelength of the incident light of the red photoresist 103 is 550 nm, the transmittance ranges from 0% to 0.5%.
As shown in fig. 2, the display module provided in the embodiment of the present application includes the color filter 1, a display panel 2, and a cover plate 4, where the display panel 2 includes a blue sub-pixel 204, a green sub-pixel 205, and a red sub-pixel 206, where the blue sub-pixel 204 is disposed corresponding to the blue photoresist 101, the green sub-pixel 205 is disposed corresponding to the green photoresist 102, the red sub-pixel 206 is disposed corresponding to the red photoresist 103, and an absolute value of a difference between a peak transmittance wavelength of the blue photoresist 101 and an emission peak wavelength of the blue sub-pixel 204, an absolute value of a difference between a peak transmittance wavelength of the green photoresist 102 and an emission peak wavelength of the green sub-pixel 205, and an absolute value of a difference between a peak transmittance wavelength of the red photoresist 103 and an emission peak wavelength of the red sub-pixel 206 are all less than 2 nm.
The display panel 2 may be an OLED display panel 2, and the OLED display panel 2 includes a substrate 201, a driving device 202 disposed over the substrate 201, and a light emitting device 203 disposed over the driving device 202.
Wherein, the color filter 1 is arranged on the surface of one side of the display panel 2 far away from the substrate 201.
The cover plate 4 is arranged on one side, far away from the display panel 2, of the color filter 1, the optical adhesive 3 is arranged between the cover plate 4 and the color filter 1, and the optical adhesive 3 is used for adhering the cover plate 4 to one side, far away from the display panel 2, of the color filter 1.
In one embodiment, as shown in fig. 3, the absolute value of the difference between the transmittance peak wavelength of the blue photoresist 101 and the emission peak wavelength of the blue sub-pixel 204 is less than 2 nm.
The transmittance peak value of the blue photoresist 101 is T1, A1 and A2 are emission peak wavelengths of two blue sub-pixels 204 when the transmittance is 1/2T1, and the intersection points are A1 and A2.
Wherein, the half-peak width of the blue photoresist 101 is the absolute value of the difference of A1 minus A2.
In one embodiment, the transmittance peak T1 of the blue photoresist 101 ranges from 55% to 70%.
In one embodiment, the half-peak width of the blue photoresist 101 ranges from 60 nm to 90 nm.
In one embodiment, as shown in fig. 4, the absolute value of the difference between the wavelength of the transmittance peak of the green photoresist 102 and the wavelength of the emission peak of the green sub-pixel 205 is less than 2 nm.
The green photoresist 102 has a transmittance peak value of T5, a1 and a2 are emission peak wavelengths of two green sub-pixels 205 when the transmittance is 1/2T1, and the intersection points are a1 and a 2.
The half-peak width of the green photoresist 102 is the absolute value of the difference of A1 minus A2.
The emission peak wavelength of the blue sub-pixel 204 corresponding to the T6 is 550 nm, and the transmittance of the green photoresist 102 is between 50% and T6 and 70%.
In one embodiment, the transmittance peak of the green photoresist 102 ranges from 55% to 70%.
In one embodiment, the half-peak width of the green photoresist 102 ranges from 55 nm to 76 nm.
In one embodiment, the transmittance of the green photoresist 102 at the wavelength of 550 nm is in the range of 50% to 70%.
In one embodiment, as shown in fig. 5, the absolute value of the difference between the transmittance peak wavelength of the red photoresist 103 and the emission peak wavelength of the red sub-pixel 206 is less than 2 nm.
Wherein, the emission peak wavelengths of the T2, the T3 and the T4 respectively corresponding to the red sub-pixel 206 are 600 nm, 590 nm and 550 nm.
Wherein, when the wavelength of the incident light of the red photoresist 103 is 600 nm, the transmittance ranges from 20% to 40%; when the wavelength of the incident light of the red photoresist 103 is 590 nm, the transmittance ranges from 3% to 14%, and when the wavelength of the incident light of the red photoresist 103 is 590 nm, the transmittance ranges from 0.1% to 2%; when the wavelength of the incident light of the red photoresist 103 is 550 nm, the transmittance ranges from 0% to 0.5%.
In one embodiment, the transmittance peak of the red photoresist 103 ranges from 55% to 70%.
In one embodiment, as shown in fig. 6, L1 is a transmittance curve of the color filter 1/display module under the irradiation of the blue light 101 with each wavelength, and L2 is a transmittance curve of the color filter 1 provided by the present application under the irradiation of the blue light with each wavelength.
When the wavelength of incident light of the blue photoresist 101 is greater than 550 nm, the transmittance of the color filter 1 provided by the application is close to zero, and when the wavelength of incident light of the existing color filter 1 is greater than 550 nm, a certain light transmittance still exists, and the color filter 1 provided by the application has the advantages of enhancing the absorption of ambient light, reducing the reflectivity and simultaneously not influencing the transmittance of pixel luminescence.
As can be seen from the following table, the reflectivity is reduced under the condition that the transmittance of the color filter provided by the present application is not changed, and when the color filter provided by the present application is a narrow half-peak width CF, the following table shows that the color filter has a narrow half-peak width CF compared with the conventional CF:
FWHM/nm T% R%
conventional CF 133.4 70 4.07
Narrow half-peak width CF 89.5 70 1.51
In one embodiment, as shown in fig. 7, L3 is a transmittance curve of the color filter 1/display module under the incident light irradiation of the red photoresist 103 with each wavelength, and L4 is a transmittance curve of the color filter 1 provided by the present application under the incident light irradiation of the red with each wavelength.
The red photoresist 103 of the color filter 1 provided by the present application has an effect of lower reflectivity.
In one embodiment, as shown in fig. 8, L5 is a transmittance curve of the color filter 1/display module under the incident light irradiation of the green photoresist 102 with each wavelength, and L6 is a transmittance curve of the color filter 1 provided by the present application under the incident light irradiation with each wavelength.
The green photoresist of the color filter provided by the application has the effect of lower reflectivity.
The color filter 1 provided by the present application comprises the following components: solvent, high molecular oligomer, cross-linking agent, pigment and photoinitiator.
Wherein, the solvent can be at least one of propylene glycol methyl ether acetate, diethylene glycol methyl ethyl ether and 3-methoxybutyl acetate.
Wherein, the high molecular oligomer can be at least one of methyl methacrylate polymer and methyl acrylate.
Wherein, the cross-linking agent can be at least one of polydipentaerythritol pentaacrylate and ethoxylated trimethylolpropane triacrylate.
Wherein, the photoinitiator can be at least one of azodiisobutyronitrile and azodiisoheptonitrile.
In the color filter 1 provided by the present application, the absorption of ambient light by the color filter 1 is enhanced by improving the types and proportions of the pigments of the color filter 1.
The color filter provided by the embodiment comprises a red light resistor, a green light resistor and a blue light resistor, wherein the pigments of the red light resistor are pigment red 177 and pigment red 254, the ratio of the mass of the pigment red 177 to the total mass of the red light resistor is 6% to 8%, the ratio of the mass of the pigment red 254 to the total mass of the red light resistor is 6% to 8%, the pigments of the green light resistor are phthalocyanine green and pigment yellow-138, the ratio of the mass of the phthalocyanine blue-15 to the total mass of the green light resistor is 10% to 15%, the ratio of the mass of the pigment yellow-138 to the total mass of the green light resistor is 8% to 12%, the pigment of the blue light resistor is phthalocyanine blue-15, and the ratio of the mass of the phthalocyanine blue-15 to the total mass of the blue light resistor is 10% to 15%; the transmittance spectral characteristics of the color filter under the irradiation of incident light rays with different wavelengths are improved by improving the types and the proportions of the red light resistance pigment, the green light resistance pigment and the blue light resistance pigment, and the absorption of the color filter to ambient light is enhanced.
The foregoing detailed description is directed to a color filter and a display module provided in the embodiments of the present application, and specific examples are applied herein to explain the principles and implementations of the present application, and the description of the foregoing embodiments is only used to help understand the method and the core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. The color filter is characterized in that the color filter comprises the following components of a solvent, a high-molecular oligomer, a cross-linking agent, a pigment and a photoinitiator, and the color filter comprises:
the pigment of the red light resistance is pigment red 177 and pigment red 254, the ratio of the mass of the pigment red 177 to the total mass of the red light resistance ranges from 6% to 8%, and the ratio of the mass of the pigment red 254 to the total mass of the red light resistance ranges from 6% to 8%;
the pigment of the green light resistance is phthalocyanine green and pigment yellow-138, the ratio of the mass of the phthalocyanine blue-15 to the total mass of the green light resistance ranges from 10% to 15%, and the ratio of the mass of the pigment yellow-138 to the total mass of the green light resistance ranges from 8% to 12%;
the pigment of the blue light resistance is phthalocyanine blue-15, and the ratio of the mass of the phthalocyanine blue-15 to the total mass of the blue light resistance ranges from 10% to 15%.
2. The color filter of claim 1, wherein the solvent is at least one of propylene glycol methyl ether acetate, diethylene glycol methyl ethyl ether, and 3-methoxybutyl acetate, the polymer oligomer is at least one of methyl methacrylate polymer and methyl acrylate, the crosslinking agent is at least one of polydipentaerythritol pentaacrylate and ethoxylated trimethylolpropane triacrylate, and the photoinitiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
3. A display module is characterized by comprising the color filter, a display panel and a cover plate as in the claims 1 and 2, wherein the display panel comprises a blue sub-pixel, a green sub-pixel and a red sub-pixel, the blue sub-pixel is arranged corresponding to the blue photoresist, the green sub-pixel is arranged corresponding to the green photoresist, the red sub-pixel is arranged corresponding to the red photoresist, and the absolute value of the difference between the wavelength of the peak transmittance of the blue photoresist and the wavelength of the emission peak of the blue sub-pixel, the absolute value of the difference between the wavelength of the peak transmittance of the green photoresist and the wavelength of the emission peak of the green sub-pixel, and the absolute value of the difference between the wavelength of the peak transmittance of the red photoresist and the wavelength of the emission peak of the red sub-pixel are all less than 2 nanometers.
4. The display module according to claim 3, wherein the transmittance peak of the blue photoresist ranges from 55% to 70%.
5. The display module according to claim 4, wherein the half-peak width of the blue photoresist ranges from 60 nm to 90 nm.
6. The display module according to claim 3, wherein the transmittance peak of the green photoresist is in a range of 55% to 70%.
7. The display module according to claim 6, wherein the half-peak width of the green photoresist ranges from 55 nm to 76 nm.
8. The display module according to claim 7, wherein the green photoresist has a transmittance in the range of 50% to 70% at an incident light wavelength of 550 nm.
9. The display module according to claim 3, wherein the transmittance peak of the red photoresist is in a range of 55% to 70%.
10. The display module of claim 9, wherein the transmittance of the red photoresist ranges from 20% to 40% when the wavelength of the incident light is 600 nm; when the wavelength of the incident light of the red light resistor is 590 nanometers, the transmittance ranges from 3% to 14%, and when the wavelength of the incident light of the red light resistor is 590 nanometers, the transmittance ranges from 0.1% to 2%; when the wavelength of the incident light of the red photoresist is 550 nanometers, the transmittance ranges from 0% to 0.5%.
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CN114267805A (en) * 2021-12-14 2022-04-01 武汉华星光电半导体显示技术有限公司 OLED display panel and OLED display device
WO2023108741A1 (en) * 2021-12-16 2023-06-22 武汉华星光电半导体显示技术有限公司 Optical regulation method for color film layer, display panel, and mobile terminal

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CN114267805A (en) * 2021-12-14 2022-04-01 武汉华星光电半导体显示技术有限公司 OLED display panel and OLED display device
CN114267805B (en) * 2021-12-14 2023-10-10 武汉华星光电半导体显示技术有限公司 OLED display panel and OLED display device
WO2023108741A1 (en) * 2021-12-16 2023-06-22 武汉华星光电半导体显示技术有限公司 Optical regulation method for color film layer, display panel, and mobile terminal

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Application publication date: 20210528