Method, apparatus and medium for blue light adjustment of display panel

Abstract

The application discloses a blue light adjusting method and device of a display panel, an equipment and a medium. A current light emitting spectrum of a pixel unit and a transmission spectrum of a color film layer corresponding to the pixel unit are acquired. Based on the current light emitting spectrum and the transmission spectrum, an out-screen spectrum power is acquired. Whether a blue light proportion meets a low blue light standard is determined according to the out-screen spectrum power. When the blue light proportion does not meet the low blue light standard, the light emitting spectrum of the pixel unit is adjusted until the blue light proportion meets the low blue light standard, so that the display panel meeting the low blue light standard can be quickly and accurately obtained.

Description

Technical Field

[0001] This disclosure generally relates to the field of display technology, and specifically to a method, apparatus, device, and medium for adjusting blue light in a display panel. Background Technology

[0002] Currently, visual terminals such as smartphones, tablets, and monitors play an increasingly important role in people's lives; however, excessive use can damage the eyes. The main causes of eye damage from visual terminals include: prolonged use, close-range use, blue light exposure, and excessively bright or dark environments. As people become more aware of the harmful effects of blue light, more and more terminal products are beginning to incorporate blue light filtering features.

[0003] Currently, in the development of LCD screens, low blue light requirements are achieved by continuously adjusting the parameters of the LCD screen. However, the existing adjustment methods are time-consuming, inefficient, and not conducive to large-scale manufacturing. Therefore, it is necessary to propose a blue light adjustment method to solve the existing problems. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a method, apparatus, device and medium for adjusting blue light of a display panel, which can quickly and accurately obtain a display panel that meets the low blue light standard.

[0005] In a first aspect, embodiments of this application provide a method for adjusting the blue light of a display panel, comprising:

[0006] Obtain the current emission spectrum of the pixel unit, and the transmission spectrum of the color filter layer corresponding to the pixel unit;

[0007] Based on the current emission spectrum and the transmission spectrum, obtain the power of the outgoing spectrum;

[0008] Determine whether the blue light ratio meets the low blue light standard based on the output spectral power.

[0009] When the blue light ratio does not meet the low blue light standard, the emission spectrum of the pixel unit is adjusted until the blue light ratio meets the low blue light standard.

[0010] In some embodiments, the pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and adjusting the emission spectrum of the pixel unit includes:

[0011] Within the spectral peak ranges corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel, the peak positions of the emission spectra of the first sub-pixel, the second sub-pixel, and the third sub-pixel are adjusted according to a preset rule.

[0012] In some embodiments, obtaining the output spectral power based on the current emission spectrum and the transmission spectrum includes:

[0013] Based on the current emission spectrum and the transmission spectrum, calculate the current color coordinates corresponding to the pixel unit;

[0014] Obtain the target color coordinates corresponding to the pixel unit;

[0015] Based on the target color coordinates and the current color coordinates, the color filter layer is adjusted, and the output spectral power is obtained based on the adjusted color filter layer.

[0016] In some embodiments, adjusting the color filter layer based on the target color coordinates and the current color coordinates includes:

[0017] The white balance of the color filter layer is adjusted based on the target color coordinates and the current color coordinates.

[0018] In some embodiments, obtaining the output spectral power based on the adjusted color filter layer includes:

[0019] Obtain the second stimulation value of the adjusted color filter layer, and obtain the output spectral power based on the second stimulation value.

[0020] In some embodiments, the second stimulus values ​​corresponding to the red, blue, and green colors in the output light are obtained respectively, and the output spectral power is obtained based on the second stimulus values ​​corresponding to the red, blue, and green colors in the output light.

[0021] In some embodiments, it also includes:

[0022] Obtain the color coordinates of red, blue, and green in the output light for each of the low blue light standards;

[0023] Based on the color coordinates corresponding to the red, blue and green colors respectively, obtain the color gamut value corresponding to each pixel unit that meets the low blue light standard;

[0024] The emission spectra corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel that satisfy the minimum color gamut value are taken as the target emission spectra of the pixel unit.

[0025] Secondly, embodiments of this application provide a blue light adjustment device for a display panel, comprising:

[0026] The acquisition module is used to acquire the current emission spectrum of the pixel unit and the transmission spectrum of the color filter layer corresponding to the pixel unit;

[0027] The acquisition module is used to acquire the outgoing spectral power based on the current emission spectrum and the transmission spectrum;

[0028] The judgment module is used to determine whether the blue light ratio meets the low blue light standard based on the output spectral power.

[0029] An adjustment module is used to adjust the emission spectrum of the pixel unit when the blue light ratio does not meet the low blue light standard, until the blue light ratio meets the low blue light standard.

[0030] Thirdly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method described in embodiments of this application.

[0031] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in embodiments of this application.

[0032] Fifthly, embodiments of this application provide a computer program product, including a computer program, characterized in that, when the computer program is executed by a processor, it implements the method described in embodiments of this application.

[0033] The blue light adjustment method for display panels proposed in this application obtains the output spectral power based on the emission spectrum and transmission spectrum, determines whether the output light of the display panel meets the low blue light standard based on the output spectral power, and adjusts the emission spectrum of the pixel unit when the blue light ratio does not meet the low blue light standard until the blue light ratio meets the low blue light standard, so that the output light of the display panel meets the low blue light standard, thereby making up for the problems in the prior art, and can quickly adjust the blue light of the liquid crystal screen, which has broad application prospects.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0036] Figure 1 This paper illustrates an implementation environment architecture diagram of the blue light adjustment method for a display panel provided in an embodiment of this application;

[0037] Figure 2 A schematic flowchart of a blue light adjustment method for a display panel according to an embodiment of this application is shown;

[0038] Figure 3 A schematic diagram of the emission spectrum provided in an embodiment of this application is shown;

[0039] Figure 4 A schematic diagram of the transmission spectrum of a color filter layer provided in an embodiment of this application is shown;

[0040] Figure 5 A flowchart illustrating a blue light adjustment method for a display panel according to another embodiment of this application is shown;

[0041] Figure 6 A schematic diagram of color matching function values ​​provided in an embodiment of this application is shown;

[0042] Figure 7 This illustration shows a schematic diagram of the outgoing spectrum provided in an embodiment of this application;

[0043] Figure 8 A schematic diagram of the spectrum of harmful blue light provided in an embodiment of this application is shown;

[0044] Figure 9 A block diagram of a blue light adjustment device for a display panel according to an embodiment of this application is shown;

[0045] Figure 10 A schematic diagram of the structure of a computer system suitable for implementing an electronic device or server according to embodiments of this application is shown. Detailed Implementation

[0046] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] For the specific implementation environment of the blue light adjustment method for the display panel proposed in this application, please refer to [link / reference needed]. Figure 1 . Figure 1 This paper illustrates an implementation environment architecture diagram of the blue light adjustment method for a display panel provided in an embodiment of this application.

[0049] like Figure 1 As shown, the implementation environment architecture includes: a display panel 101, a first spectral measurement device 102, a second spectral measurement device 103, and a controller 104.

[0050] Display panel 101 is the target panel for blue light adjustment. Display panel 101 includes multiple pixel units, each pixel unit including multiple sub-pixels. The sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel. Optionally, the first, second, and third sub-pixels correspond to a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel. The pixel unit can emit white light through the first, second, and third sub-pixels. Display panel 101 also includes a color filter layer, which is used to transmit the spectrum of the outwardly transmitted pixel units. That is, the color filter layer forms outgoing light by transmitting the emission spectra of the first, second, and third sub-pixels respectively, achieving the purpose of screen display.

[0051] The first spectral measuring device 102 is used to measure the emission spectrum of the display panel 101, that is, the emission spectrum of the pixel unit. In other words, the first spectral measuring device 102 is used to measure the emission spectrum of the first sub-pixel, the second sub-pixel and the third sub-pixel.

[0052] The second spectral measuring device 103 is used to measure the transmission spectrum of the display panel 101.

[0053] The controller 104 is used to adjust the emission spectrum of each sub-pixel in the pixel unit of the display panel 101 and the white balance of the color filter layer.

[0054] Server 105 is connected to the first spectral measurement device 102, the second spectral measurement device 103, and the controller 104 respectively. It is used to receive the emission spectra of the first sub-pixel, the second sub-pixel, and the third sub-pixel measured by the first spectral measurement device 102, and the transmission spectrum of the display panel 101 measured by the second spectral measurement device 103. It calculates the touch screen spectral power based on the emission spectrum and the transmission spectrum, and sends an adjustment command for the emission spectrum and / or the white balance of the color filter layer to the controller 104 when the output spectral power does not meet the low blue light standard.

[0055] Server 105 can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms.

[0056] Server 105 is directly or indirectly connected to the first spectral measurement device 102, the second spectral measurement device 103, and the controller 104 via wired or wireless communication. Optionally, the aforementioned wireless or wired network uses standard communication technologies and / or protocols. The network is typically the Internet, but can also be any network, including but not limited to any combination of Local Area Network (LAN), Metropolitan Area Network (MAN), Wide Area Network (WAN), mobile, wired or wireless network, private network, or virtual private network.

[0057] The blue light adjustment method for the display panel proposed in this application can be implemented by a blue light adjustment device for the display panel, which can be installed on a terminal device or a server.

[0058] To further illustrate the technical solutions provided in the embodiments of this application, a detailed description is provided below in conjunction with the accompanying drawings and specific implementation methods. Although the embodiments of this application provide method operation instruction steps as shown in the following embodiments or drawings, the method may include more or fewer operation instruction steps based on conventional or non-creative effort. In steps where there is no logically necessary causal relationship, the execution order of these steps is not limited to the execution order provided in the embodiments of this application. In actual processing or when the device executes the method, it may be executed sequentially or in parallel according to the method shown in the embodiments or drawings.

[0059] Please refer to Figure 2 , Figure 2 A schematic flowchart of a blue light adjustment method for a display panel according to an embodiment of this application is shown. Figure 2 As shown, the method includes:

[0060] Step 201: Obtain the current emission spectrum of the pixel unit and the transmission spectrum of the color filter layer corresponding to the pixel unit.

[0061] It should be noted that the current emission spectrum of a pixel unit is the fused spectrum generated by the emission of the first sub-pixel, the second sub-pixel, and the third sub-pixel corresponding to the pixel unit. That is, the superimposed light is obtained by the first sub-pixel, the second sub-pixel, and the third sub-pixel emitting light according to their respective emission spectra.

[0062] The first spectral measuring device can obtain, for example, the following by detection: Figure 3 The diagram shows a schematic of the emission spectrum.

[0063] In one feasible embodiment, the current emission spectrum of the pixel unit can be obtained by acquiring the spectra of the first sub-pixel, the second sub-pixel, and the third sub-pixel respectively through the first spectral measurement device, and then fitting the spectra of the first sub-pixel, the second sub-pixel, and the third sub-pixel with a Gaussian function to obtain the current emission spectrum of the pixel unit.

[0064] Optionally, the Gaussian function used to fit the current emission spectrum of the pixel unit is:

[0065]

[0066] Among them, P R P G P B The peak values ​​of the emission spectra of the red R sub-pixel, green G sub-pixel, and blue B sub-pixel are λ, respectively. R , λ G , λ B These represent the peak positions of the emission spectra of the red R sub-pixel, the green G sub-pixel, and the blue B sub-pixel, respectively, Δλ. R , Δλ G , Δλ B These are the full width at half maximum (FWHM) of the emission spectra of the red R sub-pixel, the green G sub-pixel, and the blue B sub-pixel, respectively.

[0067] In one feasible embodiment, the transmission spectrum of the color filter layer corresponding to the pixel unit can be measured by a second spectral measuring device. Optionally, the second spectral measuring device can be a spectroradiometer. For example, Figure 4 The image shows the transmission spectrum of the color filter layer as measured by the second spectral measuring device.

[0068] Step 202: Obtain the output spectral power based on the current emission spectrum and transmission spectrum.

[0069] It should be understood that the light emitted by the first sub-pixel, the second sub-pixel, and the third sub-pixel is transmitted through the color filter layer and emitted from the display panel to form the screen light. The spectral power corresponding to the light transmitted from the display panel is the screen light spectral power.

[0070] In one feasible embodiment, such as Figure 5 As shown, step 202, based on the current emission spectrum and transmission spectrum, obtains the output spectral power, including:

[0071] Step 2021: Calculate the current color coordinates of the pixel unit based on the current emission spectrum and transmission spectrum.

[0072] Among them, color coordinates are the coordinates of color, which can accurately represent color. Colors are determined by a chromaticity diagram with the horizontal axis as x and the vertical axis as y.

[0073] In one feasible embodiment, the color coordinates are calculated from the tristimulus values ​​of the color. Since the chromaticity perceived by the human eye is a combined result of the color matching function (CIE 1931), the transmission spectrum of the color filter layer, and the current emission spectrum, the tristimulus values ​​of the pixel unit can be obtained first using the color matching function, the transmission spectrum of the color filter layer, and the current emission spectrum, and then the color coordinates can be calculated using the tristimulus values. The tristimulus values ​​represent the degree of stimulation of the three primary colors that cause the human retina to perceive a certain color. The standard chromaticity color matching function (CIE 1931) is a color space defined mathematically by the International Commission on Illumination (CIE), which defines color matching functions according to different wavelengths.

[0074] Optionally, the tristimulus value can be equal to the corresponding color matching function value multiplied by the transmission spectrum of the color filter layer, and then multiplied by the current emission spectrum of the pixel unit.

[0075] The tristimulus values ​​can be obtained using the following formula:

[0076]

[0077]

[0078]

[0079] Where X, Y, and Z are the first, second, and third stimulus values ​​in the tristimulus values, respectively. Let CF(λ) be the color matching function corresponding to the tristimulus values, CF(λ) be the transmission spectrum of the color filter layer, and BLU(λ) be the current emission spectrum.

[0080] Among them, the color matching function corresponding to the tristimulus values ​​is a fixed value, and the corresponding information is as follows: Figure 6 As shown.

[0081] Furthermore, after obtaining the tristimulus values ​​of the current emission of the pixel unit, the current color coordinates are calculated based on the following formula:

[0082] x = X / (X + Y + Z), y = Y / (X + Y + Z)

[0083] Where x and y are the x and y coordinates of the color coordinates.

[0084] Step 2022: Obtain the target color coordinates corresponding to the pixel unit.

[0085] It should be understood that the target color coordinates refer to the color coordinates of the light emitted from the display panel when the first, second, and third sub-pixels emit the current light (taking white light as an example).

[0086] In a feasible embodiment, the target color coordinates corresponding to the pixel unit can be determined by the preset color temperature of the pixel unit.

[0087] It should be noted that color temperature is a measure of the light color of a light source, and color temperature can summarize color coordinates within a certain range. Therefore, in this application, the target color coordinates are set by presetting the color temperature.

[0088] Exemplarily, the product defines a color temperature of 9300K, and the corresponding x, y values are 0.285 and 0.293, thereby obtaining the target color coordinates of 0.285 and 0.293. It should be understood that in the actual process, the white point color coordinate values after matching will not exactly reach 0.285 and 0.293. There will be a range, 0.285±0.05, 0.293±0.05.

[0089] Step 2023, based on the target color coordinates and the current color coordinates, adjust the color film layer, and obtain the out-of-screen spectral power based on the adjusted color film layer.

[0090] That is to say, under the current light emission spectrum conditions, first adjust the transmission of the color film layer based on the preset target color coordinates and the actual color coordinates, so that the attribute state of the color film layer meets the color requirements of the display panel.

[0091] In a feasible embodiment, based on the target color coordinates and the current color coordinates, adjust the white balance of the color film layer.

[0092] It should be noted that adjusting the white balance of the display panel can change the gain effects of the color film layer on the first sub-pixel, the second sub-pixel, and the third sub-pixel.

[0093] In a feasible embodiment, let Px and Py be the measured color coordinates, and Tx and Ty be the target color coordinates. When Px>Tx and Py>Ty, control the white balance R-Gain to be adjusted downward from 255 until Px = Tx, and then adjust the white balance G-Gain downward until Py = Ty; when Px<Tx and Py>Ty, control the white balance B-Gain to be adjusted downward from 255 until Px = Tx. At this time, Py will have an upward effect. Control the white balance G-Gain to be adjusted downward until Py = Ty; when Py<Ty, control the white balance B-Gain to be adjusted downward from 255 until Py = Ty. At this time, further judge. If Px<Tx, then due to the problem that Px cannot rise if the white balance B-Gain is stopped from being adjusted and the white balance R-Gain is reduced, therefore, continue to reduce the white balance B-Gain until Px = Tx, and then control the white balance G-Gain to be adjusted downward until Py = Ty. If Px>Tx, then control the white balance R-Gain to drop until Py = Ty.

[0094] Therefore, this application adjusts the white balance of the display panel to obtain a color filter layer that meets the requirements in terms of color expression. At this time, the display panel is a panel that meets the display requirements. Then, it is possible to further judge whether the blue light of the display panel meets the low blue light standard, so as to obtain a display panel that simultaneously meets the requirements of color and reduces harm to users.

[0095] It is important to understand that adjusting the white balance of the color filter layer changes its transmission spectrum, so the screen spectral power needs to be calculated based on the adjusted color filter layer.

[0096] Optionally, the screen spectral power can be calculated using the current emission spectrum and the transmission spectrum of the adjusted color filter layer.

[0097] On the other hand, the power of the outgoing spectral spectrum can also be calculated using the second stimulus values ​​of the red, green and blue colors in the outgoing light and the color matching function.

[0098] Specifically, the power of the outgoing spectral spectrum can be calculated using the following formula:

[0099]

[0100] It should be understood that in practical applications, the method for calculating the screen spectral power can be selected based on the availability of the parameters used to calculate the screen spectral power, and this application does not impose any specific limitations on this method.

[0101] The spectra of red, green, and blue in the emitted light can also be obtained using the first spectral measurement device, for example... Figure 7 The diagram shows a spectrum.

[0102] Step 203: Determine whether the blue light ratio meets the low blue light standard based on the output spectral power.

[0103] It should be noted that the low blue light standard is that the proportion of harmful blue light in the output spectrum is less than a preset threshold. Optionally, the preset threshold can be 50%, that is, the ratio of the total power of harmful blue light in the output spectrum to the total output spectrum is less than the preset threshold.

[0104] For example, if harmful blue light has a wavelength range of 415-455 in the 400-500 nm light band, then... Figure 8 As shown, the proportion of harmful blue light can be calculated using the following formula:

[0105]

[0106] If Blue_Ratio is less than 50%, it means that the current output spectral power meets the low blue light standard. If Blue_Ratio is greater than or equal to 50%, it means that the current output spectral power does not meet the low blue light standard.

[0107] Step 204: When the blue light ratio does not meet the low blue light standard, adjust the emission spectrum of the pixel unit until the blue light ratio meets the low blue light standard.

[0108] In other words, when Blue_Ratio is less than 50%, the current display panel can be debugged. When Blue_Ratio is greater than or equal to 50%, the emission spectrum of each sub-pixel in the pixel unit needs to be adjusted in order to reduce the proportion of harmful blue light in the emitted light.

[0109] In one feasible embodiment, within the spectral peak ranges corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel, the peak positions of the emission spectra of the first sub-pixel, the second sub-pixel, and the third sub-pixel are adjusted according to a preset rule.

[0110] Among them, the preset rule can be to adjust the peak position of the emission spectrum of the sub-pixel according to the preset direction and the preset wavelength.

[0111] Specifically, in practical applications, the peak position of only one sub-pixel can be adjusted at a time. That is, any one of the first, second, and third sub-pixels can be selected to adjust the preset wavelength by setting the peak position of its emission spectrum.

[0112] It should be understood that after each adjustment of the emission spectrum of a sub-pixel, the process returns to step 201 to recalculate the current emission spectrum of the pixel unit and determine whether the harmful blue light corresponding to the current emission spectrum meets the low blue light standard. If the harmful blue light meets the low blue light standard, the adjustment of the current display panel is completed; if the harmful blue light does not meet the low blue light standard, the emission spectrum of the sub-pixel continues to be adjusted until the harmful blue light meets the low blue light standard.

[0113] It should be understood that when adjusting the peak position of a sub-pixel, the peaks of the three sub-pixels can be adjusted separately according to a certain rule to avoid repeated adjustments, which would make the analysis easier and affect the debugging efficiency.

[0114] Optionally, the adjustment pattern can be set by iterating through the peaks corresponding to the three sub-pixels. The peak range for blue light is 450–460 nm, for green light it is 528–538 nm, and for red light it is 618–625 nm. The preset wavelength can be 1 nm. That is, the peak of blue light can be adjusted in 1 nm increments within the blue light peak range of 450–460 nm, the peak of green light within the green light peak range of 528–538 nm, and the peak of red light within the red light peak range of 618–625 nm.

[0115] In one feasible embodiment, during the process of traversing the spectral peaks, multiple emission spectra that meet the low blue light standard can be obtained. At this point, the optimal emission spectrum can be further selected based on the color gamut value of the display panel, so that the display panel meets the conditions of having the lowest harmful blue light and the smallest color gamut in the emitted light.

[0116] Specifically, the color coordinates of red, blue and green in the output light of each pixel that meets the low blue light standard are obtained respectively; based on the color coordinates of red, blue and green, the color gamut value of each pixel unit that meets the low blue light standard is obtained; the emission spectra of the first sub-pixel, the second sub-pixel and the third sub-pixel that meet the minimum color gamut value are taken as the target emission spectrum of the pixel unit.

[0117] In other words, first obtain the color coordinates of red, green, and blue in the screen light, for example, the color coordinates of red are Rx and Ry, blue are Bx and By, and green are Gx and Gy. Then, the color gamut value corresponding to the current emission spectrum can be calculated using the following formula:

[0118] Color gamut = A LCD / A 基准 *100%

[0119] A LCD Value=(Rx*Gy+Ry*Bx+Gx*By–Rx*By–Gx*Ry–Bx*Gy) / 2

[0120] Among them, A 基准 These are the color gamut reference parameters.

[0121] In one feasible embodiment, the peak combinations of the emission spectra corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel are traversed, and based on each peak combination, the emission spectrum combination that meets the low blue light condition in the output spectrum is selected. Then, the color gamut value corresponding to the emission spectrum combination that meets the low blue light condition is calculated, and the emission spectrum combination with the smallest color gamut value is selected as the debugging result of the display panel.

[0122] In summary, the blue light adjustment method for display panels proposed in this application obtains the output spectral power based on the emission spectrum and transmission spectrum, determines whether the output light of the display panel meets the low blue light standard based on the output spectral power, and adjusts the emission spectrum of the pixel unit when the blue light ratio does not meet the low blue light standard until the blue light ratio meets the low blue light standard, thereby making the output light of the display panel meet the low blue light standard. This overcomes the problems in the prior art, can quickly adjust the blue light of the liquid crystal screen, and has broad application prospects.

[0123] It should be noted that although the operation of the method of the present invention is described in a specific order in the accompanying drawings, this does not require or imply that the operations must be performed in that specific order, or that all the operations shown must be performed in order to achieve the desired result.

[0124] Figure 9 A block diagram of a blue light adjustment device for a display panel according to an embodiment of this application is shown.

[0125] like Figure 9 As shown, the blue light adjustment device 10 for the display panel provided in this application embodiment includes:

[0126] The acquisition module 11 is used to acquire the current emission spectrum of the pixel unit and the transmission spectrum of the color filter layer corresponding to the pixel unit;

[0127] The acquisition module 12 is used to acquire the outgoing spectral power based on the current emission spectrum and the transmission spectrum;

[0128] The judgment module 13 is used to determine whether the blue light ratio meets the low blue light standard based on the output spectral power.

[0129] The adjustment module 14 is used to adjust the emission spectrum of the pixel unit when the blue light ratio does not meet the low blue light standard, until the blue light ratio meets the low blue light standard.

[0130] In some embodiments, the pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the adjustment module 14 is further configured to:

[0131] Within the spectral peak ranges corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel, the peak positions of the emission spectra of the first sub-pixel, the second sub-pixel, and the third sub-pixel are adjusted according to a preset rule.

[0132] In some embodiments, the acquisition module 12 is further configured to:

[0133] Based on the current emission spectrum and the transmission spectrum, calculate the current color coordinates corresponding to the pixel unit;

[0134] Obtain the target color coordinates corresponding to the pixel unit;

[0135] Based on the target color coordinates and the current color coordinates, the color filter layer is adjusted, and the output spectral power is obtained based on the adjusted color filter layer.

[0136] In some embodiments, the acquisition module 12 is further configured to:

[0137] The white balance of the color filter layer is adjusted based on the target color coordinates and the current color coordinates.

[0138] In some embodiments, the acquisition module 12 is further configured to:

[0139] Obtain the second stimulation value of the adjusted color filter layer, and obtain the output spectral power based on the second stimulation value.

[0140] In some embodiments, the acquisition module 12 is further configured to:

[0141] The second stimulus values ​​corresponding to the red, blue, and green colors in the output light are obtained respectively, and the output spectral power is obtained based on the second stimulus values ​​corresponding to the red, blue, and green colors in the output light.

[0142] In some embodiments, the adjustment module 14 is further configured to:

[0143] Obtain the color coordinates of red, blue, and green in the output light for each of the low blue light standards;

[0144] Based on the color coordinates corresponding to the red, blue and green colors respectively, obtain the color gamut value corresponding to each pixel unit that meets the low blue light standard;

[0145] The emission spectra corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel that satisfy the minimum color gamut value are taken as the target emission spectra of the pixel unit.

[0146] It should be understood that the units or modules described in the blue light adjustment device 10 of the display panel are the same as those in the reference. Figure 2 The steps in the described method correspond to each other. Therefore, the operations and features described above for the method also apply to the blue light adjustment device 10 of the display panel and the units contained therein, and will not be repeated here. The blue light adjustment device 10 of the display panel can be pre-implemented in the browser or other security applications of the electronic device, or it can be loaded into the browser or other security applications of the electronic device by downloading or other means. The corresponding units in the blue light adjustment device 10 of the display panel can cooperate with the units in the electronic device to implement the solution of the embodiments of this application.

[0147] In summary, the blue light adjustment device for the display panel proposed in this application obtains the output spectral power based on the emission spectrum and transmission spectrum, determines whether the output light of the display panel meets the low blue light standard based on the output spectral power, and adjusts the emission spectrum of the pixel unit when the blue light ratio does not meet the low blue light standard until the blue light ratio meets the low blue light standard, thereby making the output light of the display panel meet the low blue light standard, thus making up for the problems in the prior art, and can quickly adjust the blue light of the liquid crystal screen, which has broad application prospects.

[0148] The division of modules or units mentioned in the detailed description above is not mandatory. In fact, according to the embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0149] The following is for reference. Figure 10 , Figure 10 A schematic diagram of the structure of a computer system suitable for implementing the embodiments of this application is shown.

[0150] like Figure 10 As shown, the computer system includes a central processing unit (CPU) 1001, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 1002 or programs loaded from storage section 1008 into random access memory (RAM) 1003. RAM 1003 also stores various programs and data required for the system's operating instructions. CPU 1001, ROM 1002, and RAM 1003 are interconnected via bus 1004. Input / output (I / O) interface 1005 is also connected to bus 1004.

[0151] The following components are connected to I / O interface 1005: an input section 1006 including a keyboard, mouse, etc.; an output section 1007 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN card, modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to I / O interface 1005 as needed. A removable medium 1011, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 1010 as needed so that computer programs read from it can be installed into storage section 1008 as needed.

[0152] Specifically, according to embodiments of this application, the flowchart above refers to... Figure 2The described process can be implemented as a computer software program. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program contains program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via communication section 1009, and / or installed from removable medium 1011. When the computer program is executed by central processing unit (CPU) 1001, it performs the functions defined in the system of this application.

[0153] It should be noted that the computer-readable medium shown in this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0154] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operational instructions of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two connected blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified functions or operational instructions, or using a combination of dedicated hardware and computer instructions.

[0155] The units or modules described in the embodiments of this application can be implemented in software or hardware. The described units or modules can also be housed in a processor; for example, a processor can be described as including a data acquisition module, an acquisition module, a judgment module, and an adjustment module. The names of these units or modules do not necessarily limit the specific unit or module itself. For example, a data acquisition module can also be described as "acquiring the current emission spectrum of a pixel unit and the transmission spectrum of the color filter layer corresponding to the pixel unit."

[0156] In another aspect, this application also provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiments, or may exist independently and not assembled into the electronic device. The computer-readable storage medium stores one or more programs that, when used by one or more processors, execute the blue light adjustment method for the display panel described in this application.

[0157] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A method for adjusting blue light in a display panel, characterized in that, include: Obtain the current emission spectrum of the pixel unit, and the transmission spectrum of the color filter layer corresponding to the pixel unit; Based on the current emission spectrum and the transmission spectrum, calculate the current color coordinates corresponding to the pixel unit; Obtain the target color coordinates corresponding to the pixel unit; Based on the target color coordinates and the current color coordinates, the color filter layer is adjusted, and the output spectral power is obtained based on the adjusted color filter layer; the target color coordinates represent the color coordinates of the pixel unit that meets the color requirements of the display panel; Determine whether the blue light ratio meets the low blue light standard based on the output spectral power. When the blue light ratio does not meet the low blue light standard, the emission spectrum of the pixel unit is adjusted until the blue light ratio meets the low blue light standard.

2. The method according to claim 1, characterized in that, The pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. Adjusting the emission spectrum of the pixel unit includes: Within the spectral peak ranges corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel, the peak positions of the emission spectra of the first sub-pixel, the second sub-pixel, and the third sub-pixel are adjusted according to a preset rule.

3. The method according to claim 1, characterized in that, The adjustment of the color filter layer based on the target color coordinates and the current color coordinates includes: The white balance of the color filter layer is adjusted based on the target color coordinates and the current color coordinates.

4. The method according to claim 1, characterized in that, The step of obtaining the output spectral power based on the adjusted color filter layer includes: Obtain the second stimulation value of the adjusted color filter layer, and obtain the output spectral power based on the second stimulation value.

5. The method according to claim 4, characterized in that, Also includes: The second stimulus values ​​corresponding to the red, blue, and green colors in the output light are obtained respectively, and the output spectral power is obtained based on the second stimulus values ​​corresponding to the red, blue, and green colors in the output light.

6. The method according to claim 1, characterized in that, Also includes: Obtain the color coordinates of red, blue, and green in the output light for each of the low blue light standards; Based on the color coordinates corresponding to the red, blue and green colors respectively, obtain the color gamut value corresponding to each pixel unit that meets the low blue light standard; The emission spectra corresponding to the first, second, and third sub-pixels that satisfy the minimum color gamut value are used as the target emission spectra of the pixel unit.

7. A blue light adjustment device for a display panel, characterized in that, include: The acquisition module is used to acquire the current emission spectrum of the pixel unit and the transmission spectrum of the color filter layer corresponding to the pixel unit; The acquisition module is used to calculate the current color coordinates corresponding to the pixel unit based on the current emission spectrum and the transmission spectrum; Obtain the target color coordinates corresponding to the pixel unit; Based on the target color coordinates and the current color coordinates, the color filter layer is adjusted, and the output spectral power is obtained based on the adjusted color filter layer; the target color coordinates represent the color coordinates of the pixel unit that meets the color requirements of the display panel; The judgment module is used to determine whether the blue light ratio meets the low blue light standard based on the output spectral power. An adjustment module is used to adjust the emission spectrum of the pixel unit when the blue light ratio does not meet the low blue light standard, until the blue light ratio meets the low blue light standard.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the blue light adjustment method for the display panel as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the blue light adjustment method for the display panel as described in any one of claims 1-6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the blue light adjustment method of the display panel according to any one of claims 1-6.

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