Optical adjustment method of color film layer and display panel

Abstract

The present application provides an optical adjustment method for a color film layer and a display panel, the display panel comprising a light-emitting functional layer and a color film layer located on the light-emitting layer, the light-emitting functional layer comprising a plurality of light-emitting units arranged at intervals, the color film layer comprising a plurality of color resists arranged at intervals, and a color resist being arranged in alignment with a light-emitting unit; the present application sets, in a light-emitting unit and a corresponding color resist, an absolute value of a difference between a peak value of a transmission spectrum of a color resist and a peak value of a light-emitting spectrum of a corresponding light-emitting unit to be less than or equal to 10 nanometers, and a difference between a half-peak width of a transmission spectrum of a color resist and a half-peak width of a light-emitting spectrum of a corresponding light-emitting unit to be greater than or equal to 10 nanometers, so that most of the light emitted by the organic light-emitting layer can pass through the color film layer, thereby improving the light-emitting efficiency of the display panel and improving the optical quality and taste of the display panel.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to an optical adjustment method for a color film layer and a display panel. Background Art

[0002] In an organic light-emitting diode (OLED) display panel, a polarizer can effectively reduce the reflectivity of the panel under strong light, but it loses nearly 58% of the light output, which greatly increases the life span of the OLED display panel.

[0003] At present, in the existing display panels, the above-mentioned problem is usually solved by replacing the polarizer with a color filter layer (CF). The display panel using color filter technology can not only make the display panel lighter and thinner, but also increase the light output rate of the display panel from 42% to 60%, thereby improving the contrast of the display panel.

[0004] However, the use of the color filter layer not only affects the reflectivity of the display panel, but also affects the light output efficiency of the pixel unit of the organic light-emitting layer due to its characteristics. Therefore, it is very important to define a spectrum that matches the color filter layer and the organic light-emitting layer and meets the reflectivity requirements of the display panel. Summary of the invention

[0005] The embodiments of the present application provide an optical adjustment method of a color film layer and a display panel, which are used to improve the luminous efficiency of the display panel and enhance the optical quality and taste of the display panel.

[0006] To achieve the above functions, the technical solutions provided by the embodiments of the present application are as follows:

[0007] An embodiment of the present application provides a display panel, including:

[0008] A light-emitting functional layer, comprising a plurality of light-emitting units arranged at intervals; and

[0009] A color filter layer is disposed on the light-emitting functional layer, wherein the color filter layer includes a plurality of color resists disposed at intervals, and one of the color resists is disposed in alignment with one of the light-emitting units;

[0010] Among them, in one of the light-emitting units and the corresponding color resist, the absolute value of the difference between the peak value of the transmission spectrum of the color resist and the peak value of the luminescence spectrum of the corresponding light-emitting unit is less than or equal to 10 nanometers, and the difference between the half-peak width of the transmission spectrum of the color resist and the half-peak width of the luminescence spectrum of the corresponding light-emitting unit is greater than or equal to 10 nanometers.

[0011] In the display panel provided in the embodiment of the present application, the light-emitting functional layer includes a red light-emitting unit, and the color film layer includes a red color resist arranged in alignment with the red light-emitting unit, wherein the peak wavelength of the transmission spectrum of the red color resist is greater than 600 nanometers.

[0012] In the display panel provided in the embodiment of the present application, the light-emitting functional layer includes a green light-emitting unit, and the color film layer includes a green color resist arranged in alignment with the green light-emitting unit, wherein the peak wavelength of the transmission spectrum of the green color resist is between 507 nanometers and 547 nanometers.

[0013] In the display panel provided in the embodiment of the present application, the light-emitting functional layer includes a blue light-emitting unit, and the color film layer includes a blue color resist arranged in alignment with the blue light-emitting unit, wherein the peak wavelength of the transmission spectrum of the blue color resist is between 440 nanometers and 480 nanometers.

[0014] In the display panel provided in the embodiment of the present application, the transmittance of the color resistance ranges from 44.3% to 65%.

[0015] In the display panel provided in the embodiment of the present application, the half-peak width of the color resistance is less than 150 nanometers.

[0016] The embodiment of the present application further provides an optical adjustment method of a color filter layer, which is applied to a display panel, wherein the display panel includes a light-emitting functional layer, the color filter layer is arranged on the light-emitting functional layer, the light-emitting functional layer includes a plurality of light-emitting units arranged at intervals, the color filter layer includes a plurality of color resistors arranged at intervals, and one of the color resistors is arranged in alignment with one of the light-emitting units;

[0017] In one of the light-emitting units and the corresponding color resist, the color filter layer optical adjustment method comprises the following steps:

[0018] Acquiring a light-emitting spectrum of the light-emitting unit;

[0019] Setting a first threshold and a second threshold;

[0020] determining a peak value of the transmission spectrum according to a peak value of the luminescence spectrum and the first threshold, wherein the first threshold is 10 nanometers;

[0021] Determining the half-peak width of the transmission spectrum according to the half-peak width of the luminescence spectrum and the second threshold, wherein the second threshold is 10 nanometers;

[0022] The transmission spectrum is determined according to the peak value of the transmission spectrum and the half-peak width of the transmission spectrum, so that the range of the light-emitting spectrum of the light-emitting unit is within the range of the transmission spectrum of the color resist.

[0023] In the color filter layer optical adjustment method provided in the embodiment of the present application, in one of the light-emitting units and the corresponding one of the color resistors, the color filter layer optical adjustment method further includes:

[0024] The preset rated power consumption of the display panel, the reflectivity threshold of the color resistance and the actual reflectivity value of the light-emitting unit are obtained, and the transmittance of the color resistance is determined according to the preset rated power consumption of the display panel, the reflectivity threshold of the color resistance and the actual reflectivity value of the light-emitting unit.

[0025] In the color film layer optical adjustment method provided in the embodiment of the present application, the obtaining of the preset rated power consumption of the display panel, the reflectivity threshold of the color resistance, and the actual reflectivity value of the light-emitting unit, and determining the transmittance of the color resistance according to the preset rated power consumption of the display panel, the reflectivity threshold of the color resistance, and the actual reflectivity value of the light-emitting unit, includes:

[0026] Determining a minimum transmittance of the color resistance according to a preset rated power consumption of the display panel;

[0027] The maximum transmittance of the color resist is determined according to a reflectance threshold of the color resist and an actual reflectance value of the light-emitting unit.

[0028] In the color filter layer optical adjustment method provided in the embodiment of the present application, the minimum transmittance of the color filter is determined according to the following equations (1) and (2):

[0029]

[0030] P1<M......(2)

[0031] Wherein, T1 is the minimum transmittance of the color resistance, K is a constant, P1 is the power consumption of the display panel, and M is the preset rated power consumption of the display panel.

[0032] In the color filter layer optical adjustment method provided in the embodiment of the present application, the maximum transmittance of the color filter is determined according to the following equations (3), (4) and (5):

[0033]

[0034] r<R2......(4)

[0035]

[0036] Among them, T2 is the maximum transmittance of the color resist, r is the reflectivity of the color resist, R1 is the actual reflectivity of the light-emitting unit, T3 is the transmittance of the color resist in a preset band, S is the human eye vision function, R2 is the reflectivity threshold of the color resist, and F1 is the luminous intensity of the light-emitting unit in the preset band.

[0037] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide an optical adjustment method for a color film layer and a display panel, the display panel comprising a light-emitting functional layer and a color film layer located on the light-emitting layer, the light-emitting functional layer comprising a plurality of light-emitting units arranged at intervals, the color film layer comprising a plurality of color resists arranged at intervals, and a color resist is arranged in alignment with a light-emitting unit; by setting the absolute value of the difference between the peak value of the transmission spectrum of the color resist and the peak value of the light-emitting spectrum of the corresponding light-emitting unit in a light-emitting unit and a corresponding color resist to be less than or equal to 10 nanometers, and the difference between the half-peak width of the transmission spectrum of the color resist and the half-peak width of the light-emitting spectrum of the corresponding light-emitting unit to be greater than or equal to 10 nanometers, so that most of the light emitted by the organic light-emitting layer can pass through the color film layer, thereby improving the luminous efficiency of the display panel and improving the optical quality and taste of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 is a schematic diagram of the structure of an existing display panel;

[0040] Figure 2 A schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0041] Figure 3 A coordinate diagram of the light emission spectrum of the organic light emitting layer and the transmission spectrum of the color filter layer of the display panel provided in the embodiment of the present application;

[0042] Figure 4 A comparison diagram of the transmission spectrum of the blue color resist of the color filter layer and the emission spectrum of the blue light-emitting unit of the organic light-emitting layer provided in the embodiment of the present application;

[0043] Figure 5 A comparison diagram of the transmission spectrum of the green color resist of the color filter layer and the luminescence spectrum of the green light-emitting unit of the organic light-emitting layer provided in the embodiment of the present application;

[0044] Figure 6A comparison diagram of the transmission spectrum of the red color resist of the color filter layer and the luminescence spectrum of the red light-emitting unit of the organic light-emitting layer provided in the embodiment of the present application;

[0045] Figure 7 A diagram showing the color separation phenomenon of the display panel 10 when the transmittance of the color resist 111 is 66% provided in an embodiment of the present application;

[0046] Figure 8 A diagram showing the color separation phenomenon of the display panel 10 when the transmittance of the color resist 111 is 55% provided in an embodiment of the present application;

[0047] Fig. 9 A schematic flow chart of an optical adjustment method for a color filter layer provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words such as "upper" and "lower" used generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0049] See also Figure 1 , a schematic diagram of the structure of an existing display panel.

[0050] The display panel 10 includes a stacked substrate 20, a first metal layer 60, a pixel definition layer 70, an organic light-emitting layer 80, a second metal layer 90, an encapsulation layer 100 and a polarizer 120; wherein the polarizer can effectively reduce the reflectivity of the display panel 10 under strong light, but loses nearly 58% of the light output, which greatly increases the life burden of the display panel 10; currently, in the prior art, a color filter layer (Color Filter, abbreviated as CF) is usually used to replace the polarizer 120 to solve the above problem.

[0051] The color filter layer is usually composed of red color resist, green color resist, blue color resist and black matrix. In the display panel, the red color resist, green color resist and blue color resist are respectively responsible for the light output of the R / G / B sub-pixel units of the corresponding organic light-emitting layer, while the black matrix is ​​mainly responsible for preventing light leakage of the panel and reducing the reflection of the panel.

[0052] However, since the color filter layer is usually arranged on one side of the light emitting direction of the OLED panel, it not only affects the reflectivity of the display panel, but also has an impact on the light emitting of the R / G / B sub-pixel unit of the organic light emitting layer due to its spectral characteristics. Therefore, it is very important to define the spectrum that matches the R / G / B color resistance of the color filter layer and the R / G / B sub-pixel of the organic light emitting layer and meets the reflectivity requirements of the display panel. Based on this, the embodiment of the present application provides an optical adjustment method of the color filter layer and a display panel to improve the luminous efficiency of the display panel and improve the optical quality and taste of the display panel.

[0053] See also Figure 2 to Figure 9 The present application provides an optical adjustment method of a color filter layer and a display panel, the display panel comprising a light-emitting functional layer, comprising a plurality of light-emitting units arranged at intervals; and a color filter layer, arranged on the light-emitting functional layer, the color filter layer comprising a plurality of color resists arranged at intervals, one of the color resists being arranged in alignment with one of the light-emitting units; wherein, in one of the light-emitting units and the corresponding color resist, the absolute value of the difference between the peak value of the transmission spectrum of the color resist and the peak value of the light-emitting spectrum of the corresponding light-emitting unit is less than or equal to 10 nanometers, and the difference between the half-peak width of the transmission spectrum of the color resist and the half-peak width of the light-emitting spectrum of the corresponding light-emitting unit is greater than or equal to 10 nanometers.

[0054] It can be understood that, in the present application, by setting a light-emitting unit 800 and a corresponding color resist 111, the absolute value of the difference between the peak value of the transmission spectrum of the color resist 111 and the peak value of the corresponding light-emitting spectrum of the light-emitting unit 800 is less than or equal to 10 nanometers, and the difference between the half-peak width of the transmission spectrum of the color resist 111 and the half-peak width of the corresponding light-emitting spectrum of the light-emitting unit 800 is greater than or equal to 10 nanometers. Therefore, most of the outgoing light emitted by the light-emitting unit 800 can pass through the color film layer 110, thereby improving the luminous efficiency of the display panel 10, and further improving the optical quality and taste of the display panel 10.

[0055] The technical solution of the present application is now described in conjunction with specific embodiments.

[0056] Please combine Figure 2 and Figure 3 ;in, Figure 2 A schematic diagram of the structure of a display panel provided in an embodiment of the present application; Figure 3 A coordinate diagram of the luminous spectrum of the organic luminous layer and the transmittance spectrum of the color filter layer of the display panel provided in an embodiment of the present application.

[0057] The present embodiment provides a display panel 10, and the display panel 10 includes but is not limited to an organic light emitting diode display panel 10 (Organic Light Emitting Diode OLED), and the present embodiment does not make any specific restrictions on this; it should be noted that the present embodiment takes the display panel 10 as an organic light emitting diode display panel 10 as an example to describe the technical solution of the present application.

[0058] In this embodiment, the display panel 10 includes a glass substrate 11, a base 20, a buffer layer 30, an array substrate 40, a planarization layer 50, a first metal layer 60, a pixel definition layer 70, an organic light-emitting layer 80, a second metal layer 90, an encapsulation layer 100 and a color film layer 110 which are stacked in sequence.

[0059] The base 20 includes a first substrate 21, a spacer layer 22 and a second substrate 23 which are stacked in sequence; wherein the first substrate 21 and the second substrate 23 may both include a rigid substrate or a flexible substrate. When the first substrate 21 and the second substrate 23 are both rigid substrates, the material may be metal or glass; when the first substrate 21 and the second substrate 23 are both flexible substrates, the material may include at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, siloxane resin, polyimide resin and polyamide resin; the material of the spacer layer 22 includes but is not limited to silicon nitride (SiNx), silicon oxide (SiOx) and other materials with water absorption properties. This embodiment does not limit the materials of the first substrate 21, the second substrate 23 and the spacer layer 22.

[0060] The materials of the first metal layer 60 and the second metal layer 90 include at least one metal selected from the group consisting of molybdenum (Mo), aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), titanium (Ti), tantalum (Ta) and tungsten (W). This embodiment does not impose any specific restrictions on the materials of the first metal layer 60 and the second metal layer 90.

[0061] It should be noted that, in this embodiment, the first metal layer 60 includes a plurality of first electrodes 61 spaced apart, and the second metal layer 90 includes a second electrode 91. The first electrode 61 includes but is not limited to an anode, and the second electrode 91 includes but is not limited to a cathode layer. In this embodiment, the technical solution of the present application is described by taking the first electrode 61 as an anode and the second electrode 91 as a cathode layer as an example.

[0062] In this embodiment, the pixel definition layer 70 includes a plurality of opening areas 71 exposing portions of the electrodes, and the organic light-emitting layer 80 is located in the opening areas 71; specifically, the organic light-emitting layer 80 includes a plurality of sub-pixels 81 of different colors that are arranged at intervals, one of the sub-pixels 81 is correspondingly arranged in one of the opening areas 71, and one of the sub-pixels 81 is arranged corresponding to one of the first electrodes 61, wherein the sub-pixels 81 include but are not limited to red sub-pixels r, green sub-pixels g, and blue sub-pixels b.

[0063] In this embodiment, the organic light-emitting layer 80 also includes a plurality of light-emitting units 800 arranged at intervals, each of which includes a first electrode 61, a sub-pixel 81 and a second electrode 91; the color film layer 110 includes a plurality of color resists 111 and a black matrix 112 arranged at intervals, wherein one color resist 111 is arranged corresponding to one of the light-emitting units 800, and the black matrix 112 is located between each of the color resists 111 to define the boundaries between each of the color resists 111; further, in order to prevent light leakage between adjacent color resists 111, the edges of the color resists 111 are usually overlapped on the black matrix 112.

[0064] Specifically, in one of the light-emitting units 800 and the corresponding color resist 111, the absolute value of the difference between the peak value of the transmittance spectrum of the color resist 111 and the peak value of the luminous spectrum of the corresponding light-emitting unit 800 is less than or equal to a first preset value, preferably, the first preset value is 10 nanometers, and the difference between the half-peak width of the transmittance spectrum of the color resist 111 and the half-peak width of the luminous spectrum of the corresponding light-emitting unit 800 is greater than or equal to a second preset value, preferably, the second preset value is 10 nanometers; therefore, it can be understood that when the relationship between the transmittance spectrum of the color resist 111 and the luminous spectrum of the corresponding light-emitting unit 800 meets the above-mentioned peak value and half-peak width requirements, it indicates that the transmittance spectrum of the color resist 111 is close to the luminous spectrum of the corresponding light-emitting unit 800, so that most of the light emitted by the organic light-emitting layer 80 can pass through the color film layer 110, thereby improving the luminous efficiency of the display panel 10; it should be noted that in Figure 3 In the figure, the peak value refers to the wavelength peak value of the horizontal axis, and the half-peak width refers to the half-peak width of the wavelength of the horizontal axis; at the same time, Figure 3 The vertical coordinate corresponds to the transmittance of the transmission spectrum and the luminous intensity of the luminous spectrum.

[0065] Furthermore, please combine Figure 2 , Figure 4 , Figure 5 and Figure 6 ;in, Figure 4A comparison diagram of the transmission spectrum of the blue color resist of the color filter layer and the emission spectrum of the blue light-emitting unit of the organic light-emitting layer provided in the embodiment of the present application; Figure 5 A comparison diagram of the transmission spectrum of the green color resist of the color filter layer and the luminescence spectrum of the green light-emitting unit of the organic light-emitting layer provided in the embodiment of the present application; Figure 6 This is a comparison diagram of the transmission spectrum of the red color resist of the color filter layer and the emission spectrum of the red light-emitting unit of the organic light-emitting layer provided in the embodiment of the present application, wherein it should be noted that: Figure 4 , Figure 5 and Figure 6 The vertical coordinates correspond to the transmittance of the transmission spectrum and the luminous intensity of the luminous spectrum.

[0066] In this embodiment, the light-emitting unit 800 includes at least a red light-emitting unit 810, a green light-emitting unit 820 and a blue light-emitting unit 830, the color film layer 110 is located above the organic light-emitting layer 80, the color resist 111 includes at least a red color resist 1111, a green color resist 1112 and a blue color resist 1113, and the red color resist 1111 is arranged corresponding to the red light-emitting unit 810, the green color resist 1112 is arranged corresponding to the light-emitting unit 800, and the blue color resist 1113 is arranged corresponding to the blue light-emitting unit 830.

[0067] Among them, the orthographic projection of the red color resist 1111 in the direction perpendicular to the display panel 10 covers the orthographic projection of the red sub-pixel r in the direction perpendicular to the display panel 10, the orthographic projection of the green color resist 1112 in the direction perpendicular to the display panel 10 covers the orthographic projection of the green sub-pixel g in the direction perpendicular to the display panel 10, and the orthographic projection of the blue color resist 1113 in the direction perpendicular to the display panel 10 covers the orthographic projection of the blue sub-pixel b in the direction perpendicular to the display panel 10, thereby achieving the visual aesthetic effect of the display panel 10 being integrally black.

[0068] In this embodiment, the peak wavelength of the transmission spectrum of the blue color resist 1113 is between 440 nanometers and 480 nanometers.

[0069] The peak wavelength of the transmission spectrum of the green color resist 1112 is between 507 nanometers and 547 nanometers.

[0070] The peak wavelength of the transmission spectrum of the red color resist 1111 is greater than 600 nanometers.

[0071] Among them, the transmittance of the color resist 111 ranges from 44.3% to 65%, and the half-peak width of the color resist 111 is less than 150 nanometers; specifically, the transmittance of the blue color resist 1113 ranges from 44.3% to 65%, the transmittance of the green color resist 1112 ranges from 44.3% to 65%, and the transmittance of the red color resist 1111 ranges from 44.3% to 65%.

[0072] Please combine Figure 1 It should be noted that, in the prior art, in the display panel 10 provided with the polarizer, since the transmittance of the light emitted by the organic light-emitting layer 80 in each film layer of the display panel 10 except the polarizer is close to 100%, in the prior art, the transmittance of the light of the display panel 10 depends on the polarizer. According to the prior art, the power consumption P of the display panel 10 is POL The transmittance T of the polarizer POL The product of is a constant K; and in this embodiment, the color filter layer 110 is used to replace the polarizer in the existing display panel 10. Since in this embodiment, except for the color resistance 111 of the color filter layer 110, the transmittance of the light emitted by the organic light-emitting layer 80 in each film layer of the display panel 10 is close to 100%, in this embodiment, the transmittance of the display panel 10 depends on the transmittance of the color resistance 111, so there is a power consumption P of the display panel 10. POL-less and the transmittance T of the color resist 111 POL-less The product is a constant K, that is, PPOL*TPOL=PPOL-less*TPOL-less.

[0073] Based on the above, the formula PPOL*TPOL=PPOL-less*T POL-less It can be seen that in this embodiment, the transmittance T of the color resist 111 is POL The power consumption P of the display panel 10 POL-less is inversely proportional, that is, the transmittance T of the color resist 111 POL The larger the power consumption P of the display panel 10 is, POL-less The smaller.

[0074] In the prior art, the transmittance T of the polarizer relative to the organic light-emitting layer 80 is POL 44.3%. In order to reduce the power consumption of the display panel 10, this embodiment sets P POL-less Less than (1-32%) P POLIn summary, in order to ensure low power consumption of the display panel 10 and improve the transmittance of the display panel 10, the transmittance of the color resist 111 is set in the range of 44.3% to 65% in this embodiment; preferably, the transmittance of the color resist 111 is 58%.

[0075] It should be noted that, in this embodiment, P POL-less Less than (1-32%) P POL That is, the power consumption of the display panel 10 provided with the color filter layer 110 is reduced by 32% relative to the power consumption of the display panel 10 provided with the polarizer. This is only used as an example, and the above numerical value can be selected according to actual conditions in this embodiment.

[0076] It can be understood that the greater the transmittance of the color resist 111, the greater its reflectivity will be, thereby increasing the reflectivity of the display panel 10. When external light is irradiated to the color film layer 110, the external light will be specularly reflected on the color resist 111. When the display panel 10 is displayed (that is, when the organic light-emitting layer 80 emits light), the light reflected by the color resist 111 layer will be mixed with the light emitted by the organic light-emitting unit 800, resulting in color deviation.

[0077] Please combine Figure 7 and Figure 8 ,in, Figure 7 A diagram showing the color separation phenomenon of a display panel when the transmittance of the color resistance is 66% provided in an embodiment of the present application; Figure 8 This is a diagram showing the color separation phenomenon of the display panel 10 when the transmittance of the color resistance is 58% provided in an embodiment of the present application.

[0078] like Figure 7 As shown, when the transmittance of the color resist 111 is not within the range of 44.3% to 65%, the display panel 10 has a more obvious dispersion phenomenon; Figure 8 As shown, when the transmittance of the color resist 111 is between 44.3% and 65%, the color separation phenomenon of the display panel 10 is effectively improved; at the same time, since the transmittance of the color resist 111 is in the range of 44.3% to 65%, the reflectivity of the color resist 111 is not large, thereby reducing the reflectivity of external light and improving the contrast of the display panel 10.

[0079] Please combine Figure 2 , Figure 3 and Fig. 9 ;in, Fig. 9 A schematic flow chart of an optical adjustment method for a color filter layer provided in an embodiment of the present application.

[0080] The present embodiment provides an optical adjustment method for a color filter layer, which is applied to a display panel 10, wherein the display panel 10 includes a light-emitting functional layer 80, the color filter layer 110 is arranged on the light-emitting functional layer 80, the light-emitting functional layer 80 includes a plurality of light-emitting units 800 arranged at intervals, and the color filter layer 110 includes a plurality of color resists 111 arranged at intervals, and one of the color resists 111 is arranged in alignment with one of the light-emitting units 800.

[0081] In one of the light-emitting units 800 and the corresponding one of the color resists 111, the optical adjustment method of the color filter layer 110 includes the following steps:

[0082] Step S10: Acquire the light emission spectrum of the light emitting unit 800 .

[0083] It should be noted that the light spectrum of the light emitting unit 800 can be directly measured by existing equipment, and this embodiment does not impose any specific limitation on the type of equipment selected.

[0084] Step S20: setting a first threshold and a second threshold.

[0085] Step S30: determining the peak value of the transmission spectrum according to the peak value of the luminescence spectrum and the first threshold value, wherein the first threshold value is 10 nanometers.

[0086] Further, in step S30, the absolute value of the difference between the peak value of the transmission spectrum of the color resist 111 and the peak value of the corresponding light emitting spectrum of the light emitting unit 800 is less than or equal to 10 nanometers.

[0087] Step S40: determining the half-peak width of the transmission spectrum according to the half-peak width of the luminescence spectrum and the second threshold, wherein the second threshold is 10 nanometers.

[0088] Further, in step S40, the difference between the half-peak width of the transmission spectrum of the color resist 111 and the half-peak width of the corresponding light emitting spectrum of the light emitting unit 800 is greater than or equal to 10 nanometers.

[0089] Step S50: determining the transmission spectrum according to the peak value of the transmission spectrum and the half-peak width of the transmission spectrum, so that the range of the light-emitting spectrum of the light-emitting unit is within the range of the transmission spectrum of the color resist.

[0090] It can be understood that, in a light-emitting unit 800 and a corresponding color resist 111, when the relationship between the transmittance spectrum of the color resist 111 and the luminous spectrum of the corresponding light-emitting unit 800 meets the above-mentioned peak value and half-peak width requirements, it indicates that the transmittance spectrum of the color resist 111 is relatively close to the luminous spectrum of the corresponding light-emitting unit 800, so that most of the light emitted by the organic light-emitting layer 80 can pass through the color film layer 110, thereby improving the luminous efficiency of the display panel 10.

[0091] Furthermore, in one of the light-emitting units 800 and the corresponding one of the color resists 111, the optical adjustment method of the color filter layer 110 further includes:

[0092] Step S60: Obtain the preset rated power consumption of the display panel 10, the reflectivity threshold of the color resistance, and the actual reflectivity value of the light-emitting unit, and determine the transmittance of the color resistance according to the preset rated power consumption of the display panel 10, the reflectivity threshold of the color resistance, and the actual reflectivity value of the light-emitting unit.

[0093] It is understandable that in the prior art, in the display panel 10 provided with the polarizer, since the transmittance of the light emitted by the organic light-emitting layer 80 in each film layer of the display panel 10 except the polarizer is close to 100%, in the prior art, the transmittance of the light of the display panel 10 depends on the polarizer. According to the prior art, the power consumption P of the display panel 10 is POL The transmittance T of the polarizer POL The product of is a constant K; and in this embodiment, the color filter layer 110 is used to replace the polarizer in the existing display panel 10. Since in this embodiment, except for the color resistance 111 of the color filter layer 110, the transmittance of the light emitted by the organic light-emitting layer 80 in each film layer of the display panel 10 is close to 100%, in this embodiment, the transmittance of the display panel 10 depends on the transmittance of the color resistance 111, so there is a power consumption P of the display panel 10. POL-less and the transmittance T of the color resist 111 POL-less The product is a constant K, that is, PPOL*TPOL=PPOL-less*TPOL-less.

[0094] Based on the above, the formula PPOL*TPOL=PPOL-less*T POL-less It can be seen that in this embodiment, the transmittance T of the color resist 111 is POL The power consumption P of the display panel 10 POL-less is inversely proportional, that is, the transmittance T of the color resist 111 POL The larger the power consumption P of the display panel 10 is, POL-lessAt the same time, the greater the transmittance of the color resist 111, the greater its reflectivity will be, thereby increasing the reflectivity of the display panel 10. When external light is irradiated to the color film layer 110, the external light will be mirror-reflected on the color resist 111. When the display panel 10 is displaying (that is, when the organic light-emitting layer 80 is emitting light), the light reflected by the color resist 111 layer will be mixed with the light emitted by the organic light-emitting unit 800, resulting in color deviation.

[0095] Therefore, this embodiment determines the transmittance of the color resist according to the preset rated power consumption of the display panel 10 , the reflectance threshold of the color resist, and the actual reflectance value of the light-emitting unit.

[0096] Specifically, step S60 includes the following steps:

[0097] Step S61 : determining the minimum transmittance of the color resistance according to the preset rated power consumption of the display panel 10 .

[0098] In this embodiment, the step S61 includes: determining the minimum transmittance of the color resist according to the following equations (1) and (2):

[0099]

[0100] P1<M......(2)

[0101] Wherein, T1 is the minimum transmittance of the color resist 111 , K is a constant, P1 is the power consumption of the display panel 10 , and M is the preset rated power consumption of the display panel 10 .

[0102] It should be noted that, from the above embodiments, the transmittance T of the color resist 111 is POL The power consumption P of the display panel 10 POL-less is inversely proportional, that is, the transmittance T of the color resist 111 POL The larger the power consumption P of the display panel 10 is, POL-less The smaller it is, and in actual situations, the display panel 10 has a preset rated power consumption. Therefore, this embodiment limits the minimum transmittance T1 of the color resistance by setting the size of the preset rated power consumption M of the display panel 10; it can be understood that in this embodiment, there is no specific restriction on the size of the preset rated power consumption M of the display panel 10, and its value can be set according to actual conditions.

[0103] Step S62: Determine the maximum transmittance of the color resist according to the following equations (3), (4) and (5):

[0104]

[0105] r<R2......(4)

[0106]

[0107] Among them, T2 is the maximum transmittance of the color resist 111, r is the reflectivity of the color resist 111, R1 is the actual reflectivity of the light-emitting unit 800, T3 is the transmittance of the color resist 111 in a preset band, S is the human eye vision function, R2 is the reflectivity threshold of the color resist 111, and F1 is the luminous intensity of the light-emitting unit 800 in the preset band.

[0108] It should be noted that the luminous intensity F1 of the preset band of the light-emitting unit 800 can be directly measured by existing equipment, and this embodiment does not impose any specific restrictions on the type of equipment selected; the human eye visual function S refers to the different sensitivities of the human eye to light of different wavelengths within the range of 380 nanometers to 780 nanometers, also known as the visual acuity characteristics of the human eye.

[0109] It can be seen from the above embodiments that the greater the transmittance of the color resist 111, the greater its reflectivity will be, thereby increasing the reflectivity of the display panel 10. When external light is irradiated to the color film layer 110, the external light will be specularly reflected on the color resist 111. When the display panel 10 is displayed (that is, when the organic light-emitting layer 80 emits light), the light reflected by the color resist 111 layer will be mixed with the light emitted by the organic light-emitting unit 800, resulting in color deviation.

[0110] Therefore, this embodiment limits the reflectivity threshold R2 of the color resist 111 to obtain the transmittance T3 of the color resist 111 in a preset band, and calculates the maximum transmittance T2 of the color resist from the transmittance T3 of the color resist 111 in a preset band and the luminous intensity F1 of the light-emitting unit 800 in the preset band.

[0111] In this embodiment, the transmittance of the color resist is determined to be in the range of 44.3% to 65% according to the minimum transmittance of the color resist 111 and the maximum transmittance of the color resist.

[0112] It should be noted that, in this embodiment, the light-emitting unit 800 at least includes a red light-emitting unit 810, a green light-emitting unit 820 and a blue light-emitting unit 830, the color film layer 110 is located above the organic light-emitting layer 80, and the color resist 111 at least includes a red color resist 1111, a green color resist 1112 and a blue color resist 1113, and the red color resist 1111 is arranged corresponding to the red light-emitting unit 810, the green color resist 1112 is arranged corresponding to the light-emitting unit 800, and the blue color resist 1113 is arranged corresponding to the blue light-emitting unit 830; wherein, the transmittance ranges of the red color resist 1111, the green color resist 1112 and the blue color resist 1113 can all be calculated by the above method, which is not elaborated in this embodiment.

[0113] This embodiment further provides a mobile terminal, which includes a terminal body and the display panel described in any one of the above embodiments, wherein the terminal body and the display panel are integrated into one.

[0114] It can be understood that the display panel 10 has been described in detail in the above embodiments, and will not be repeated here.

[0115] In specific applications, the mobile terminal can be a display screen of a smart phone, tablet computer, laptop computer, smart bracelet, smart watch, smart glasses, smart helmet, desktop computer, smart TV or digital camera, and can even be used on electronic devices with flexible display screens.

[0116] In summary, the present application provides an optical adjustment method for a color film layer and a display panel, wherein the display panel includes a light-emitting functional layer and a color film layer located on the light-emitting layer, wherein the light-emitting functional layer includes a plurality of light-emitting units arranged at intervals, and the color film layer includes a plurality of color resists arranged at intervals, wherein one of the color resists is arranged in alignment with one of the light-emitting units; the present application sets, in one of the light-emitting units and a corresponding color resist, an absolute value of the difference between the peak value of the transmission spectrum of the color resist and the peak value of the light-emitting spectrum of the corresponding light-emitting unit to be less than or equal to 10 nanometers, and a difference between the half-peak width of the transmission spectrum of the color resist and the half-peak width of the light-emitting spectrum of the corresponding light-emitting unit to be greater than or equal to 10 nanometers, so that most of the light emitted by the organic light-emitting layer can pass through the color film layer, thereby improving the light-emitting efficiency of the display panel and improving the optical quality and taste of the display panel.

[0117] The above is a detailed introduction to an optical adjustment method for a color film layer and a display panel provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: include: The light-emitting functional layer comprises a plurality of light-emitting units arranged at intervals, wherein the light-emitting units comprise a blue light-emitting unit, a green light-emitting unit and a red light-emitting unit; as well as A color filter layer is disposed on the light-emitting functional layer, wherein the color filter layer includes a plurality of color resists disposed at intervals, and one of the color resists is disposed in alignment with one of the light-emitting units; Among them, in one of the light-emitting units and the corresponding color resist, the absolute value of the difference between the peak value of the transmission spectrum of the color resist and the peak value of the luminescence spectrum of the corresponding light-emitting unit is less than or equal to 10 nanometers, and the difference between the half-peak width of the transmission spectrum of the color resist and the half-peak width of the luminescence spectrum of the corresponding light-emitting unit is greater than or equal to 10 nanometers.

2. The display panel according to claim 1, wherein: The color filter layer includes a red color resist arranged in alignment with the red light-emitting unit, wherein a peak wavelength of a transmission spectrum of the red color resist is greater than 600 nanometers.

3. The display panel according to claim 1, wherein: The color filter layer includes a green color resist disposed in alignment with the green light-emitting unit, wherein a peak wavelength of a transmission spectrum of the green color resist is between 507 nanometers and 547 nanometers.

4. The display panel according to claim 1, wherein: The color filter layer includes a blue color resist disposed in alignment with the blue light-emitting unit, wherein a peak wavelength of a transmission spectrum of the blue color resist is between 440 nanometers and 480 nanometers.

5. The display panel according to claim 1, wherein: The transmittance of the color resist ranges from 44.3% to 65%.

6. The display panel according to claim 1, wherein: The half-peak width of the color resistance is less than 150 nanometers.

7. An optical adjustment method for a color film layer, characterized in that: Applied in a display panel, the display panel comprises a light-emitting functional layer, the color filter layer is arranged on the light-emitting functional layer, the light-emitting functional layer comprises a plurality of light-emitting units arranged at intervals, the light-emitting units comprise a blue light-emitting unit, a green light-emitting unit and a red light-emitting unit, the color filter layer comprises a plurality of color resists arranged at intervals, and one of the color resists is arranged in alignment with one of the light-emitting units; In one of the light-emitting units and the corresponding color resist, the color filter layer optical adjustment method comprises the following steps: Acquiring the light emitting spectrum of the light emitting unit; Setting a first threshold and a second threshold; determining a peak value of a transmission spectrum according to a peak value of the luminescence spectrum and the first threshold, wherein the first threshold is 10 nanometers; Determining the half-peak width of the transmission spectrum according to the half-peak width of the luminescence spectrum and the second threshold, wherein the second threshold is 10 nanometers; The transmission spectrum is determined according to the peak value of the transmission spectrum and the half-peak width of the transmission spectrum, so that the range of the light-emitting spectrum of the light-emitting unit is within the range of the transmission spectrum of the color resist.

8. The color filter layer optical adjustment method according to claim 7, characterized in that: In one of the light-emitting units and the corresponding color resistor, the color filter layer optical adjustment method also includes The preset rated power consumption of the display panel, the reflectivity threshold of the color resistance and the actual reflectivity value of the light-emitting unit are obtained, and the transmittance of the color resistance is determined according to the preset rated power consumption of the display panel, the reflectivity threshold of the color resistance and the actual reflectivity value of the light-emitting unit.

9. The color filter layer optical adjustment method according to claim 8, characterized in that: The obtaining of the preset rated power consumption of the display panel, the reflectivity threshold of the color resistance, and the actual reflectivity value of the light-emitting unit, and determining the transmittance of the color resistance according to the preset rated power consumption of the display panel, the reflectivity threshold of the color resistance, and the actual reflectivity value of the light-emitting unit, includes: Determining a minimum transmittance of the color resistance according to a preset rated power consumption of the display panel; The maximum transmittance of the color resist is determined according to a reflectance threshold of the color resist and an actual reflectance value of the light-emitting unit.

10. The color filter layer optical adjustment method according to claim 9, characterized in that: The minimum transmittance of the color resist is determined according to the following equations (1) and (2): P1<M......(2) Wherein, T1 is the minimum transmittance of the color resistance, K is a constant, P1 is the power consumption of the display panel, and M is the preset rated power consumption of the display panel.

11. The color filter layer optical adjustment method according to claim 9, characterized in that: The maximum transmittance of the color resist is determined according to the following equations (3), (4) and (5): r＜R2......(4) Among them, T2 is the maximum transmittance of the color resist, r is the reflectivity of the color resist, R1 is the actual reflectivity of the light-emitting unit, T3 is the transmittance of the color resist in a preset band, S is the human eye vision function, R2 is the reflectivity threshold of the color resist, and F1 is the luminous intensity of the light-emitting unit in the preset band.

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