A display device compatible with DCI-P3 and AdobeRGB

Abstract

The application discloses a display device compatible with DCI-P3 and AdobeRGB, which comprises a control module, a backlight module and a light emitting device. The control module is used for acquiring parameters of a display mode, generating control instructions according to the parameters of the display mode, and controlling power supply of the light emitting device. The backlight module is used for responding to the control instructions, cooperating with a switching power supply algorithm to supply power to the light emitting device according to the parameters of the display mode, and switching color spaces. The application can control the power supply of the light emitting device by cooperating with the switching power supply algorithm, control the display of DCI-P3 color space and AdobeRGB color space by the light emitting device respectively, realize the target that the color gamut coverage of DCI-P3 and AdobeRGB reaches more than 99%, maximize color restoration, improve resource utilization and energy efficiency, and reduce production cost. The application is widely applied to the technical field of liquid crystal display product manufacturing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid crystal display product manufacturing, and in particular to a display device compatible with DCI-P3 and AdobeRGB. BACKGROUND

[0002] With consumers having higher and higher pursuit of visual impact and color restoration authenticity of display products, various standards of color spaces for color collection, transmission and display have appeared, among which DCI-P3 (Apple P3) color space and AdobeRGB color space have higher acceptance of consumers, and the color gamut coverage of display products in the two color spaces needs to be more than 99%. In the DCI-P3 and AdobeRGB color space standards, there are large differences in red and green color coordinate values. Taking D65 as the center point of white light, the main wavelength corresponding to red in the AdobeRGB color space is 612 nm, and the main wavelength corresponding to green is 527 nm. The main wavelength corresponding to red in the DCI-P3 color space is 617 nm, and the main wavelength corresponding to green is 537 nm. The LED lamp beads selected for the light source of the commonly used liquid crystal display device on the market cannot simultaneously meet the requirements of more than 99% of the color gamut coverage of the liquid crystal display device in the AdobeRGB and DCI-P3 color spaces due to insufficient purity (too wide half-wave width) of the red and green parts. SUMMARY

[0003] In view of the technical defects of the above related technologies, the embodiments of the present application propose a display device compatible with DCI-P3 and AdobeRGB.

[0004] The embodiments of the present application propose a display device compatible with DCI-P3 and AdobeRGB, which comprises:

[0005] A control module is configured to obtain parameters of a display mode, generate the control instruction according to the parameters of the display mode, and control power supply of a light emitting device.

[0006] A backlight module is configured to respond to the control instruction, supply power to the light emitting device according to the parameters of the display mode, and switch color spaces by cooperating with a switching power supply algorithm.

[0007] The light emitting device comprises a first light emitting sub-device and a second light emitting sub-device. The first light emitting sub-device is configured to control display of the AdobeRGB color space. The second light emitting sub-device is configured to control display of the DCI-P3 color space.

[0008] In some embodiments, the display device further comprises:

[0009] The display module is configured to generate display content according to a display mode.

[0010] In some embodiments, the backlight module comprises the light emitting device, a power supply module, a backlight structure, an optical film, and a light guide plate; the power supply module is configured to provide power and control the light emitting device to emit light.

[0011] In some embodiments, the light emitting device further comprises a light bar; the first light emitting sub-device is a first light bead; the second light emitting sub-device is a second light bead; the first light bead and the second light bead are staggered and have the same interval on the light bar.

[0012] In some embodiments, the display module is further configured to automatically identify a power supply result of the light emitting device and determine the display mode.

[0013] In some embodiments, the first light bead and the second light bead are LED light beads; and the light bar is an LED light bar.

[0014] In some embodiments, the first proportioning information comprises a blue light emitting chip, β-Sirolon with a peak wavelength of 529 nanometers, and KSF red light emitting phosphor; and the first proportioning information is phosphor proportioning information of the first light bead.

[0015] The second proportioning information comprises a blue light emitting chip, β-Sirolon with a peak wavelength of 535 nanometers, and KSF red light emitting phosphor; and the second proportioning information is phosphor proportioning information of the second light bead.

[0016] In some embodiments, the display mode comprises a first display mode and a second display mode; the first display mode is an AdobeRGB display mode; and the second display mode is a DCI-P3 display mode.

[0017] In some embodiments, the power supply module comprises a first power supply circuit and a second power supply circuit; the first power supply circuit is configured to supply power to the first light bead; and the second power supply circuit is configured to supply power to the second light bead.

[0018] The power supply module is configured to control the first power supply circuit and the second power supply circuit.

[0019] In some embodiments, when the first power supply circuit supplies power to the first light bead, the power supply module is configured to control the second power supply circuit to stop supplying power to the second light bead.

[0020] When the second power supply circuit supplies power to the second light bead, the power supply module is configured to control the first power supply circuit to stop supplying power to the first light bead.

[0021] The display device compatible with DCI-P3 and AdobeRGB provided by the application can control the power supply of the light-emitting device by the backlight module responding to the control instruction and cooperating with the switching power supply algorithm, switch the display mode to be compatible with the DCI-P3 color space and the AdobeRGB color space, obtain the parameters of the display mode by the control module, generate the control instruction according to the parameters of the display mode, and control the power supply of the light-emitting device. The application can control the power supply of the light-emitting device by cooperating with the switching power supply algorithm, control the display of the DCI-P3 color space and the AdobeRGB color space by the light-emitting device, be compatible with the DCI-P3 color space and the AdobeRGB color space, achieve the target that the DCI-P3 and AdobeRGB color gamut coverage rate reaches more than 99%, maximize the color restoration, improve the resource utilization rate and energy efficiency, and reduce the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a module schematic diagram of a display device compatible with DCI-P3 and AdobeRGB provided by an embodiment of the application;

[0023] Figure 2 is a schematic diagram of the internal structure of a liquid crystal display device provided by an embodiment of the application;

[0024] Figure 3 is a schematic diagram of the arrangement mode of the first lamp bead and the second lamp bead provided by an embodiment of the application;

[0025] Figure 4 is a schematic diagram of the spectrum comparison of the 529 LED lamp bead and the 535 LED lamp bead;

[0026] Figure 5 is a schematic diagram of the test results of using the 529 LED lamp bead to display the AdobeRGB color space;

[0027] Figure 6 is a schematic diagram of the test results of using the 535 LED lamp bead to display the AdobeRGB color space;

[0028] Figure 7 is a schematic diagram of the test results of using the 529 LED lamp bead to display the DCI-P3 color space;

[0029] Figure 8 is a schematic diagram of the test results of using the 535 LED lamp bead to display the DCI-P3 color space. DETAILED DESCRIPTION

[0030] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0031] It should be noted that although the functional modules are divided in the device schematic diagram, and the logical order is shown in the flowchart, in some cases, the steps shown or described can be performed in a manner different from the module division in the device or the order in the flowchart. The terms "first", "second", and the like in the specification and claims and the above-described drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0033] Referring to Figure 1 , Figure 1 An optional module schematic diagram of a display device compatible with DCI-P3 and AdobeRGB is provided by the embodiments of the present application, and the display device comprises:

[0034] A control module is configured to obtain parameters of a display mode, generate a control instruction according to the parameters of the display mode, and control power supply of a light-emitting device;

[0035] A backlight module is configured to supply power to the light-emitting device according to the parameters of the display mode in cooperation with a switching power supply algorithm in response to the control instruction, and switch color spaces.

[0036] There are differences between the three-color coordinate standards of the AdobeRGB color space and the DCI-P3 color space, as shown in Table 1 and Table 2:

[0037] Table 1 Three-color coordinate standards of the AdobeRGB color space

[0038] R G B x 0.6800 0.2650 0.1500 y 0.3200 0.6900 0.0600

[0039] Table 2 Three-color coordinate standards of the DCI-P3 color space

[0040] R G B x 0.6400 0.2100 0.1500 y 0.3300 0.7100 0.0600

[0041] Based on the above differences, the light-emitting device is controlled to display the AdobeRGB color space and the DCI-P3 color space, respectively.

[0042] In some embodiments, the light emitting device comprises a first light emitting sub-device, a second light emitting sub-device and a light bar; the first light emitting sub-device is used for controlling the display of the AdobeRGB color space; the second light emitting sub-device is used for controlling the display of the DCI-P3 color space; specifically, the first light emitting sub-device is a first light-emitting bead, and the second light emitting sub-device is a second light-emitting bead.

[0043] In some embodiments, the display device further comprises a display module, which is used for generating display content according to a display mode; optionally, the display module is a liquid crystal display panel, and the display mode comprises a first display mode and a second display mode; the first display mode is an AdobeRGB display mode, and the content of the AdobeRGB color space is displayed; the second display mode is a DCI-P3 display mode, and the content of the DCI-P3 color space is displayed.

[0044] In some embodiments, the backlight module comprises a light emitting device, a power supply module, a backlight structure, an optical film and a light guide plate; the power supply module is used for providing electric energy to control the light emitting of the light emitting device.

[0045] In some embodiments, the display device comprises a liquid crystal panel and a backlight module, which are used for generating display content according to a display mode; optionally, the display mode comprises an AdobeRGB display mode and a DCI-P3 display mode. Figure 2 , Figure 2 is an optional internal structure schematic diagram of a liquid crystal display device provided by the embodiments of the present application, wherein, the number 1 is a liquid crystal panel, the number 2 is a backlight structure, the number 3 is an LED light bar, the number 4 is an LED light bead, the number 5 is an optical film, and the number 6 is a light guide plate.

[0046] In some embodiments, optionally, the light bar is an LED light bar, and the first light bead and the second light bead are both LED light beads, which are installed in a cross arrangement on the light bar, and the position interval is the same and staggered. Figure 3 , the number 7 is the first light bead, and the number 8 is the second light bead; the first light bead and the second light bead are installed in a cross arrangement on the light bar, and the position interval is the same and staggered; this cross arrangement can make the first light bead and the second light bead emit light independently to control the display of the color space, while providing sufficient light source radiation, so that the brightness and clarity and other aspects of the display device are not affected when displaying content.

[0047] In some embodiments, the power supply module includes a first power supply circuit and a second power supply circuit, both of which are installed on the light bar. The first power supply circuit supplies power to the first lamp beads, and the second power supply circuit supplies power to the second lamp beads. The power supply module controls the first power supply circuit and the second power supply circuit. Specifically, when the first power supply circuit supplies power to the first lamp beads, the power supply module is configured to control the second power supply circuit to stop supplying power to the second lamp beads in accordance with the switching power supply algorithm. When the second power supply circuit supplies power to the second lamp beads, the power supply module is configured to control the first power supply circuit to stop supplying power to the first lamp beads in accordance with the switching power supply algorithm, so as to switch the color space to be compatible with the DCI-P3 color space and the AdobeRGB color space.

[0048] In some embodiments, the display module is further configured to automatically identify the power supply result of the light emitting device, and determine the display mode. When it is identified that the first power supply circuit supplies power to the first light emitting sub-device, the display mode is determined to be the first display mode. When it is identified that the second power supply circuit supplies power to the second light emitting sub-device, the display mode is determined to be the second display mode.

[0049] In some embodiments, the first lamp bead is composed of a blue light emitting chip, β-SiAlON with a peak wavelength of 529 nm, and KSF red light emitting phosphor. The first lamp bead can match most existing liquid crystal panels, and the Adobe RGB color gamut coverage rate can reach more than 99%. The second lamp bead is composed of a blue light emitting chip, β-SiAlON with a peak wavelength of 535 nm, and KSF red light emitting phosphor. The second lamp bead can match most existing liquid crystal panels, and the DCI-P3 color gamut coverage rate can reach more than 99%.

[0050] In some embodiments, referring to Figure 4 , Figure 4 is a schematic diagram of the spectrum comparison between 529 LED lamp beads (lamp beads made using the first ratio information) and 535 LED lamp beads (lamp beads made using the second ratio information). Reference numeral 9 is the spectrum of the 529 LED lamp bead, and reference numeral 10 is the spectrum of the 535 LED lamp bead. It can be obtained that the spectrum of the 529 LED lamp bead is different from that of the 535 LED lamp bead. Based on this, the 529 LED lamp bead and the 535 LED lamp bead are respectively used to display different color spaces. Referring to Figure 5 and Figure 6 , the 529 LED lamp bead (made using the first ratio information) and the 535 LED lamp bead (made using the second ratio information) are respectively used to display the Adobe RGB color space, Figure 5is a test result diagram of using 529 LED lamp beads to display Adobe RGB color space, Figure 6 is a test result diagram of using 535 LED lamp beads to display Adobe RGB color space, and the color gamut coverage rates reached are 99.89% (using the first matching information) and 96.08% (using the second matching information), respectively; for reference Figure 7 and Figure 8 , tests use 529 LED lamp beads (lamp beads made using the first matching information) and 535 LED lamp beads (lamp beads made using the second matching information) to display DCI-P3 color space, respectively, Figure 7 is a test result diagram of using 529 LED lamp beads to display DCI-P3 color space, Figure 8 is a test result diagram of using 535 LED lamp beads to display DCI-P3 color space, and the color gamut coverage rates reached are 96.71% (using the first matching information) and 99.66% (using the second matching information), respectively; therefore, using the first matching information to make lamp beads (first lamp beads) to display Adobe RGB color space and using the second matching information to make lamp beads to display DCI-P3 color space can make the color gamut coverage rates of both reach 99% or more.

[0051] The display device compatible with DCI-P3 and AdobeRGB provided by the embodiment of the application can control the power supply of the light emitting device by the backlight module responding to the control instruction and cooperating with the switching power supply algorithm, switch the display mode to be compatible with DCI-P3 color space and AdobeRGB color space, acquire the parameters of the display mode by the control module, generate the control instruction according to the parameters of the display mode, and control the power supply of the light emitting device. The application can control the power supply of the light emitting device by cooperating with the switching power supply algorithm, control the display of DCI-P3 color space and AdobeRGB color space by the light emitting device, be compatible with DCI-P3 color space and AdobeRGB color space, achieve the target of DCI-P3 and Adobe RGB color gamut coverage reaching 99% or more, maximize the color restoration, improve the resource utilization and energy efficiency, and reduce the production cost.

[0052] The embodiments described in the embodiments of the application are used to more clearly illustrate the technical solutions of the embodiments of the application, and do not constitute a limitation on the technical solutions provided by the embodiments of the application. Those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the application are also applicable to similar technical problems.

[0053] The preferred embodiments of the present application are described above with reference to the accompanying drawings, and are not intended to limit the scope of the present application. Any modification, equivalent replacement and improvement made by those skilled in the art without departing from the scope and spirit of the present application shall fall within the scope of the present application.

Claims

1. A display device compatible with DCI-P3 and AdobeRGB, characterized in that: include: A control module, configured to obtain parameters of a display mode, generate control instructions based on the parameters of the display mode, and control the power supply of the light-emitting device; A backlight module, configured to respond to the control instruction, supply power to the light emitting device and switch the color space according to the parameters of the display mode and in conjunction with a switching power supply algorithm; The light-emitting device includes a first light-emitting sub-device and a second light-emitting sub-device; the first light-emitting sub-device is used to control the display of the AdobeRGB color space; the second light-emitting sub-device is used to control the display of the DCI-P3 color space; The light emitting device further comprises a light bar; the first light emitting sub-device is a first lamp bead; the second light emitting sub-device is a second lamp bead; the first lamp bead and the second lamp bead are arranged alternately on the light bar and have the same position spacing; The first ratio information comprises a chip emitting blue light, β-sialon with a peak wavelength of 529 nanometers, and KSF phosphor powder emitting red light; the first ratio information is the phosphor ratio information of the first lamp bead; The second ratio information comprises a chip emitting blue light, β-sialon with a peak wavelength of 535 nanometers, and KSF phosphor powder emitting red light; the second ratio information is the phosphor ratio information of the second lamp bead.

2. The display device compatible with DCI-P3 and AdobeRGB according to claim 1, characterized in that: The display device further includes: The display module is used to generate display content according to the display mode.

3. The display device compatible with DCI-P3 and AdobeRGB according to claim 1, characterized in that: The backlight source module includes the light emitting device, a power supply module, a backlight structural component, an optical film and a light guide plate; the power supply module is used to provide electrical energy to control the light emitting device to emit light.

4. The display device compatible with DCI-P3 and AdobeRGB according to claim 2, characterized in that: The display module is further configured to automatically identify the power supply result of the light-emitting device and determine the display mode.

5. The display device compatible with DCI-P3 and AdobeRGB according to claim 1, characterized in that: The first lamp beads and the second lamp beads are LED lamp beads; the light bar is an LED light bar.

6. The display device compatible with DCI-P3 and AdobeRGB according to claim 2, characterized in that: The display mode includes a first display mode and a second display mode; the first display mode is an AdobeRGB display mode; The second display mode is the DCI-P3 display mode.

7. The display device compatible with DCI-P3 and AdobeRGB according to claim 3, characterized in that: The power supply module includes a first power supply line and a second power supply line; The first power supply circuit is used to supply power to the first lamp bead; the second power supply circuit is used to supply power to the second lamp bead; The power supply module is used to control the first power supply line and the second power supply line.

8. The display device compatible with DCI-P3 and AdobeRGB according to claim 7, characterized in that: When the first power supply circuit supplies power to the first lamp bead, the power supply module is used to control the second power supply circuit to stop supplying power to the second lamp bead; When the second power supply circuit supplies power to the second lamp bead, the power supply module is used to control the first power supply circuit to stop supplying power to the first lamp bead.

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