CN112365814A - Display device, display control method, and computer-readable storage medium - Google Patents

Display device, display control method, and computer-readable storage medium Download PDF

Info

Publication number
CN112365814A
CN112365814A CN202011317038.3A CN202011317038A CN112365814A CN 112365814 A CN112365814 A CN 112365814A CN 202011317038 A CN202011317038 A CN 202011317038A CN 112365814 A CN112365814 A CN 112365814A
Authority
CN
China
Prior art keywords
light
emitting
groups
leds
light emitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011317038.3A
Other languages
Chinese (zh)
Other versions
CN112365814B (en
Inventor
林健源
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen TCL New Technology Co Ltd
Original Assignee
Shenzhen TCL New Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen TCL New Technology Co Ltd filed Critical Shenzhen TCL New Technology Co Ltd
Priority to CN202011317038.3A priority Critical patent/CN112365814B/en
Publication of CN112365814A publication Critical patent/CN112365814A/en
Application granted granted Critical
Publication of CN112365814B publication Critical patent/CN112365814B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention discloses a display device, a display control method and a computer readable storage medium, wherein the display device comprises: the LED light-emitting device comprises at least two groups of light-emitting groups, at least two driving integrated circuits and a driving integrated circuit, wherein each light-emitting group comprises a plurality of LEDs, the BIN ranges of the LEDs of the same light-emitting group are the same, and the driving integrated circuit is connected with and used for driving one light-emitting group. According to the invention, the light-emitting wavelengths of different light-emitting groups are adjusted by adjusting the driving current output by the driving integrated circuit connected with the different light-emitting groups, so that the light-emitting wavelengths of the different light-emitting groups are close to each other, thereby obtaining good color uniformity when LEDs in different BIN ranges are used in the same display device, and reducing the cost of production and sale links.

Description

Display device, display control method, and computer-readable storage medium
Technical Field
The present invention relates to a display device, a display control method, and a computer-readable storage medium, and more particularly, to a display device, a display control method, and a computer-readable storage medium.
Background
In an LED display such as a miniLED display or a micro LED display, in order to ensure uniformity of chromaticity during display, light-emitting LEDs of the same LED display are usually in the same BIN range (packaged LEDs can be classified according to parameters such as wavelength, luminous intensity, luminous angle, color temperature, and operating voltage, and the LEDs are classified into a plurality of grades and categories, and then are separately installed in different BINs according to setting, and parameters of LEDs in the same BIN range are kept highly consistent), otherwise, the LEDs in the same display cannot be corrected by a display control system in a later stage, but the LEDs in the same display are ensured to be in the same BIN range, and both the LED cost is increased in the production and sale processes of the LEDs.
Disclosure of Invention
The invention mainly aims to provide a display device, and aims to solve the problem that the cost of LEDs in the production and sale processes is increased due to the requirement that the LEDs of the same LED display are in the same BIN range.
In order to achieve the above object, the present invention provides a display device including: the LED light-emitting device comprises at least two groups of light-emitting groups, at least two driving integrated circuits and a driving integrated circuit, wherein each light-emitting group comprises a plurality of LEDs, the BIN ranges of the LEDs of the same light-emitting group are the same, and the driving integrated circuit is connected with and used for driving one light-emitting group.
Furthermore, the number of the light-emitting groups is even, the LEDs of any two light-emitting groups form a plurality of rows, and the LEDs of the two light-emitting groups in each row are arranged at intervals; or the number of the light-emitting groups is even, the LEDs of any two light-emitting groups form a plurality of columns, and the LEDs of the two light-emitting groups in each column are arranged at intervals.
Furthermore, the number of the light-emitting groups is 3 or an odd number more than 3, a plurality of groups of the LEDs of the light-emitting groups form a plurality of rows, and adjacent LEDs in each row belong to different light-emitting groups; or the number of the light-emitting groups is 3 or an odd number more than 3, a plurality of groups of the LEDs of the light-emitting groups form a plurality of rows, and adjacent LEDs in each row belong to different light-emitting groups.
Further, each of the light emitting groups is arranged in a plurality of rows or a plurality of columns, and the light emitting groups of adjacent rows and/or adjacent columns belong to different BIN ranges.
Further, the colors of the light emitted by the LEDs of the light emitting group are the same.
Further, the LED is a miniLED or a micro LED.
In order to achieve the above object, the present invention also provides a display control method applied to the display device as described in any one of the above, the control method comprising the steps of:
acquiring the light-emitting wavelength of the light-emitting group under the same preset driving current;
and adjusting the driving current corresponding to the light-emitting groups according to the light-emitting wavelength so as to enable the absolute value of the difference value of the light-emitting wavelengths of the LEDs of any two groups of the light-emitting groups to be smaller than a first preset value.
Further, when the light emitting groups are two groups, the step of adjusting the driving current corresponding to the light emitting group according to the light emitting wavelength includes:
increasing the drive current of the longer wavelength light emitting group; and/or
The driving current of the light emitting group having the shorter wavelength is reduced.
Further, when the light emitting groups are three or more groups, the step of adjusting the driving current corresponding to the light emitting groups according to the light emitting wavelengths includes:
calculating an average value of the light emitting wavelengths based on the acquired light emitting wavelength of each of the light emitting groups;
and adjusting the driving current of the corresponding light-emitting group according to the average value and the light-emitting wavelength, so that the absolute value of the difference between the adjusted light-emitting wavelength of the light-emitting group and the average value is smaller than a second preset value, and the second preset value is smaller than the first preset value.
Further, the step of adjusting the driving current of the corresponding light-emitting group according to the average value and the light-emitting wavelength to make the absolute value of the difference between the adjusted light-emitting wavelength of the light-emitting group and the average value smaller than a second preset value includes:
increasing the drive current of a light emitting group having a light emitting wavelength greater than or equal to the average value, and/or
And reducing the driving current of the light emitting group with the light emitting wavelength smaller than the average value.
To achieve the above object, the present invention further provides a display device, which includes a memory, a processor, and a display control program stored in the memory and executable on the processor, wherein the display control program, when executed by the processor, implements the steps of the display control method according to any one of the above aspects.
To achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a display control program that, when executed by a processor, implements the steps of the display control method according to any one of the above.
According to the display device and the display control method, at least two groups of light-emitting groups are arranged, the BIN ranges of a plurality of LEDs in the same light-emitting group are the same, the plurality of LEDs in the corresponding light-emitting groups are correspondingly connected and driven by the driving integrated circuits in corresponding numbers one by one, and the light-emitting wavelengths of different light-emitting groups are adjusted by adjusting the driving currents output by the driving integrated circuits connected with different light-emitting groups, so that the light-emitting wavelengths of different light-emitting groups are close to each other, and therefore when the LEDs in different BIN ranges are used in the same display device, good color uniformity is obtained, and the cost of production and sales links is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a display device according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a display device according to yet another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a display device according to still another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a display device according to yet another embodiment of the present invention;
FIG. 6 is a schematic diagram of an apparatus in a hardware operating environment according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating a display control method according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating a step S20 of the display control method according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, a display device 100 according to the present invention includes: the LED driving circuit comprises at least two groups of light-emitting groups, at least two driving integrated circuits 20 and at least two driving integrated circuits 20, wherein each light-emitting group comprises a plurality of LEDs 10, the BIN range of the LEDs 10 of the same light-emitting group is the same, and one driving integrated circuit 20 is connected and used for driving one light-emitting group.
In this embodiment, the LEDs 10 are minileds or micro LEDs, the display device 100 may further include a carrier board for arranging the LEDs 10, the LEDs 10 are generally arranged in an array on the carrier board, and the carrier board may further be provided with traces for connecting each of the LEDs 10 and the corresponding driving integrated circuit 20.
In the present embodiment, the display device 100 includes at least two light emitting groups, that is, the display device 100 includes two or more light emitting groups, each of the light emitting groups includes a plurality of LEDs 10, the BIN ranges of the plurality of LEDs 10 in the same group are the same, and the BIN ranges of the LEDs 10 in different groups are different, and it is described as an example that the display device 100 includes two light emitting groups, that is, a light emitting group a and a light emitting group B, and the BIN ranges of the LEDs 10 in the light emitting group a and the light emitting group B are different, each of the light emitting groups includes a plurality of LEDs 10, for example, the light emitting group a includes a plurality of LEDAs, and the LEDAs are in the same BIN range a; the light emitting group B includes a plurality of LEDBs, a plurality of which are within the same BIN range B, the BIN range A being different from the BIN range B.
In the present embodiment, the number of the driving integrated circuits 20 corresponds to the number of the light-emitting groups, and is also two or more, and the following description will take as an example that the display device 100 includes two sets of the driving integrated circuits 20, that is, a driving integrated circuit a and a driving integrated circuit B, where each of the driving integrated circuits 20 is connected to and drives a plurality of the LEDs 10 in one of the light-emitting groups, for example, the driving integrated circuit a is connected to and drives a plurality of LEDAs in the light-emitting group a, and the driving integrated circuit B is connected to and drives a plurality of LEDBs in the light-emitting group B.
In this embodiment, the same driving current may be input to the light emitting group a and the light emitting group B through the driving integrated circuit a and the driving integrated circuit B, respectively, to obtain the light emitting wavelength λ a of the light emitting group a and the λ B of the light emitting group B under the same driving current, where the light emitting group a and the light emitting group B are located in different BIN ranges, and the light emitting wavelength λ a and the light emitting wavelength λ B are also different in magnitude, assuming that λ a > λ B, at this time, according to a relationship between the light emitting wavelength of the LED10 and the driving current: that is, the larger the driving current of the LED10, the smaller the emission wavelength of the LED 10. By increasing the driving current IA of the driving integrated circuit a connected to the light emitting group a and/or decreasing the driving current IB of the driving integrated circuit B connected to the light emitting group B, such that IA > IB, and finally decreasing the light emitting wavelength λ a and/or increasing the light emitting wavelength λ B, thereby decreasing the wavelength difference between the light emitting wavelength λ a and the light emitting wavelength λ B, experiments show that the difference between the light emitting wavelengths of the different LEDs 10 is less than or equal to 2nm, no significant color difference is observed by human eyes, when the difference is greater than 2nm, a significant color difference between the different LEDs 10 is observed by human eyes, and by adjusting the driving current of the driving integrated circuit a and/or the driving integrated circuit B, the absolute value of the difference between the light emitting wavelength λ a of the light emitting group a and the light emitting wavelength λ B of the light emitting group B can be made smaller than a preset value such as 2nm, therefore, when the LEDs 10 in different BIN ranges are used in the same display device 100, good color uniformity is realized, and the cost of production and sale links is reduced.
For example, assuming that the light-emitting group a and the light-emitting group B are driven by the same driving current I0, for example, 1.5mA, the light-emitting wavelength λ a of the light-emitting group a is measured to be 540nm, the light-emitting wavelength λ B of the light-emitting group B is 537nm, and the absolute value of the difference between the two is greater than 2nm, so that the human eye can observe a significant color difference between the LEDA and the LEDB, the present embodiment increases the driving current IA of the driving integrated circuit a connected to the light-emitting group a, so that IA is increased to 1.6mA, and/or, reducing the drive current IB of the drive integrated circuit B connected with the light emitting group B, so that IB is reduced to 1.4mA, so that IA > IB, at this time, the light-emitting wavelength lambda A of the light-emitting group A is 539nm, the light-emitting wavelength lambda B of the light-emitting group B is 538nm, and the absolute value of the difference between the two is less than or equal to 2nm, so that good color uniformity is realized.
It can be understood that when the number of the light-emitting groups is three or more, the light-emitting wavelengths of different light-emitting groups can be adjusted by the above principle, so that the absolute value of the difference between the light-emitting wavelengths of any two groups of light-emitting groups is smaller than a preset value, such as within 2nm, and good color uniformity can be realized.
In summary, in the embodiment, at least two groups of light emitting groups are arranged, and the BIN ranges of the LEDs 10 of the same light emitting group are the same, the driving integrated circuits 20 of the corresponding number are connected to and drive the LEDs 10 of the corresponding light emitting group in a one-to-one correspondence, and the driving integrated circuits 20 connected to different light emitting groups are adjusted to output driving currents, so as to adjust the light emitting wavelengths of different light emitting groups, so that the light emitting wavelengths of different light emitting groups are close to each other, and an absolute value of a difference between the light emitting wavelengths of any two groups of light emitting groups is smaller than a preset value, so as to obtain good color uniformity and reduce the cost of production and sales links.
Referring to fig. 1-2, further, the number of the light emitting groups is even, the LEDs 10 of any two of the light emitting groups form a plurality of rows, and the LEDs 10 of the two light emitting groups in each row are arranged at intervals; or the number of the light-emitting groups is even, the LEDs 10 of any two light-emitting groups form a plurality of columns, and the LEDs 10 of the two light-emitting groups of each column are arranged at intervals.
In the present embodiment, as shown in fig. 2, the number of the light-emitting groups is even (taking two light-emitting groups in fig. 2 as an example for explanation), the LEDs 10 of any two light-emitting groups form a plurality of rows, and the LEDs 10 of the two light-emitting groups in each row are arranged at intervals, so that the LEDA and LEDB in different BIN ranges are distributed and uniformly distributed, and better color uniformity can be obtained compared to the case where a plurality of LEDA are arranged in the same area and a plurality of the same LEDB are arranged in the same area.
Alternatively, as shown in fig. 1, the number of the light emitting groups is even (taking two light emitting groups in fig. 1 as an example for explanation), the LEDs 10 of any two light emitting groups form a plurality of columns, and the LEDs 10 of the two light emitting groups in each column are arranged at intervals, so that the LEDA and LEDB in different BIN ranges are distributed and uniformly distributed, and better color uniformity can be obtained compared with the case that a plurality of LEDA are collectively arranged in the same area and a plurality of LEDB are collectively arranged in the same area.
Referring to fig. 3, each of the light emitting groups is arranged in a plurality of rows or a plurality of columns, and the light emitting groups in adjacent rows and/or adjacent columns belong to different BIN ranges.
In the present embodiment, as shown in fig. 3, the LEDs 10 of any two of the light-emitting groups are formed in several columns and in several rows, the LEDs 10 of the two light-emitting groups in each column are arranged at intervals, and the LEDs 10 of the two light-emitting groups in each row are arranged at intervals, that is, the LEDs in the two light-emitting groups in each row are adjacent to the LEDA, and the LEDs in the two light-emitting groups in each row are adjacent to the LEDB, so that the LEDs in the two light-emitting groups are more dispersed and more uniform than the LEDs in fig. 2, and further, better color uniformity can be obtained than the LEDs in fig. 1.
Referring to fig. 4-5, further, the number of the light emitting groups is an odd number of 3 or more than 3, the plurality of groups of the LEDs 10 of the light emitting groups form a plurality of rows, and the adjacent LEDs 10 in each row belong to different light emitting groups; or the number of the light emitting groups is 3 or an odd number of more than 3, a plurality of groups of the LEDs 10 of the light emitting groups form a plurality of columns, and the adjacent LEDs 10 in each column belong to different light emitting groups.
In the present embodiment, as shown in fig. 5, the number of the light-emitting groups is odd (taking three light-emitting groups in fig. 5 as an example for explanation), the three groups of the LEDs 10 of the light-emitting groups form a plurality of rows, and the adjacent LEDs 10 in each row belong to different light-emitting groups, so that the LEDA, LEDB and LEDC in different BIN ranges are dispersed and uniformly distributed, and better color uniformity can be obtained compared to the case where a plurality of LEDA are collectively arranged in the same region, a plurality of LEDB are collectively arranged in the same region, and a plurality of LEDC are collectively arranged in the same region.
Alternatively, as shown in fig. 4, the number of the light-emitting groups is odd (taking three light-emitting groups in fig. 4 as an example for explanation), the LEDs 10 of the three light-emitting groups form several columns, and the adjacent LEDs 10 in each column belong to different light-emitting groups, so that the LEDA, LEDB and LEDC in different BIN ranges are distributed and uniformly distributed, and better color uniformity can be obtained compared with the case where a plurality of LEDA are collectively arranged in the same region, a plurality of LEDB are collectively arranged in the same region, and a plurality of LEDC are collectively arranged in the same region.
Further, the colors of the light emitted by the LEDs 10 of the light emitting group are the same.
In this embodiment, under the same driving current, the colors of the light emitted by the LEDs 10 of different light-emitting groups are the same, so that, on a hardware level, the absolute value of the difference between the light-emitting wavelengths of the LEDs 10 of different groups can be smaller than a preset value by fine-tuning the driving currents of the different light-emitting groups, and on this basis, the driving currents of the different light-emitting groups can be further adjusted by a software algorithm, so that the LEDs 10 emit three primary colors of red, green and blue to form pixels, and a display picture is formed by a plurality of pixels. The LEDs 10 of different BIN ranges are thus pre-calibrated for color uniformity on a hardware level.
As shown in fig. 6, fig. 6 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present invention. The terminal according to the embodiment of the present invention is a display device 100. As shown in fig. 1, the display device 100 may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display (Display), an input unit such as a Keyboard (Keyboard), a remote controller, and the optional user interface 1003 may also include a standard wired interface, a wireless interface. Network interface 1004 may optionally include standard wired, wireless interfaces; the memory 1005 may include a non-volatile flash memory (non-volatile) such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the terminal shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer-readable storage medium, may include therein an operating system, a network communication module, a user interface module, and a display control program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the display control program stored in the memory 1005 and perform the following operations:
acquiring the light-emitting wavelength of the light-emitting group under the same preset driving current;
and adjusting the driving current corresponding to the light-emitting groups according to the light-emitting wavelengths so that the absolute value of the difference value of the light-emitting wavelengths of the LEDs 10 of any two groups of the light-emitting groups is smaller than a first preset value.
Referring to fig. 1 and 7, the present invention further provides a display control method applied to the display device 100, in embodiment 1, the control method includes the following steps:
step S10, acquiring the light-emitting wavelength of the light-emitting group under the same preset driving current;
step S20, adjusting the driving current corresponding to the light emitting groups according to the light emitting wavelengths, so that the absolute value of the difference between the light emitting wavelengths of the LEDs 10 of any two light emitting groups is smaller than a first preset value.
In this embodiment, taking the example that the display device 100 in fig. 1 includes two light emitting groups, that is, a light emitting group a and a light emitting group B, the driving integrated circuit a and the driving integrated circuit B input the same preset driving current to the light emitting group a and the light emitting group B respectively to obtain the light emitting wavelength λ a of the light emitting group a and the λ B of the light emitting group B, where the light emitting group a and the light emitting group B are located in different BIN ranges, and the light emitting wavelength λ a and the light emitting wavelength λ B are also different in size, assuming that λ a > λ B.
According to the relation between the light emitting wavelength and the driving current of the LED 10: that is, the larger the driving current of the LED10, the smaller the emission wavelength of the LED 10. By increasing the driving current IA of the driving integrated circuit a connected to the light emitting group a and/or decreasing the driving current IB of the driving integrated circuit B connected to the light emitting group B, such that IA > IB, and finally decreasing the light emitting wavelength λ a and/or increasing the light emitting wavelength λ B, thereby decreasing the wavelength difference between the light emitting wavelength λ a and the light emitting wavelength λ B, experiments show that the difference between the light emitting wavelengths of the different LEDs 10 is less than or equal to 2nm, no obvious color difference is perceived by human eyes, and when the difference exceeds 2nm, a obvious color difference between the different LEDs 10 can be observed by human eyes, therefore, by adjusting the driving current of the driving integrated circuit a and/or the driving integrated circuit B, the absolute value of the difference between the light emitting wavelength λ a of the light emitting group a and the light emitting wavelength λ B of the light emitting group B can be made less than or equal to a first preset value such as 2nm, therefore, when the LEDs 10 in different BIN ranges are used, good color uniformity can be realized, and the cost of production and sales links is reduced.
For example, assuming that when the light-emitting group a and the light-emitting group B are driven at the same driving current I0, for example, 1.5mA, the light-emitting wavelength λ a of the light-emitting group a is 540nm, the light-emitting wavelength λ B of the light-emitting group B is 537nm, and the absolute value of the difference between the two is greater than 2nm, the human eye can observe a significant color difference between LEDA and LEDB, and the IA is increased to 1.6mA by increasing the driving current IA of the driving integrated circuit a connected to the light-emitting group a, and/or the driving current IB of the driving integrated circuit B connected to the light-emitting group B is decreased to 1.4mA, so that IA > IB, when the light-emitting wavelength λ a of the light-emitting group a is 539nm, the light-emitting wavelength λ B of the light-emitting group B is 538nm, and the absolute value of the difference between the two is smaller than or equal to a first preset value, for example, 2nm, thereby achieving good color uniformity. It is understood that, at λ a < λ B, IA < IB is adjusted such that the light emission wavelength λ a of the light emission group a is smaller than or equal to a first preset value such as 2nm in absolute value of the difference in the light emission wavelength λ B of the light emission group B.
When the number of the light-emitting groups is three or more, the light-emitting wavelengths of different light-emitting groups can be adjusted through the adjusting mode, so that the absolute value of the difference value of the light-emitting wavelengths between any two groups of light-emitting groups is smaller than or equal to a first preset value, such as within 2nm, and good color uniformity can be achieved.
Further, when the light emitting groups are two groups, the step of adjusting the driving current corresponding to the light emitting group according to the light emitting wavelength includes:
step S21, increasing the drive current of the light emitting group with the longer wavelength; and/or
In step S22, the drive current of the light emitting group having the shorter wavelength is reduced.
In the present embodiment, based on the 1 st embodiment of the above display control method, in the 2 nd embodiment, according to the relationship between the emission wavelength of the LED10 and the drive current: that is, the larger the driving current of the LED10, the smaller the emission wavelength of the LED 10. Since the emission wavelength λ a of the emission group a is longer and the emission wavelength λ B of the emission group B is shorter, the driving current I of the driving integrated circuit a connected to the emission group a is increasedAAnd/or reducing the driving current I of the driving integrated circuit B connected with the light emitting group BBSo that IA>IBFinally, the light-emitting wavelength λ a is decreased and/or the light-emitting wavelength λ B is increased, so as to decrease the wavelength difference between the light-emitting wavelength λ a and the light-emitting wavelength λ B, so that the absolute value of the difference between the light-emitting wavelength λ a of the light-emitting group a and the light-emitting wavelength λ B of the light-emitting group B is less than or equal to a first preset value, such as 2 nm.
Referring to fig. 8, further, when the light emitting groups are three or more groups, the step of adjusting the driving current corresponding to the light emitting groups according to the light emitting wavelengths includes:
step S23, calculating an average value of the emission wavelengths based on the acquired emission wavelengths of each of the emission groups;
step S24, adjusting the driving current of the corresponding light emitting group according to the average value and the light emitting wavelength, so that the absolute value of the difference between the adjusted light emitting wavelength of the light emitting group and the average value is smaller than a second preset value, wherein the second preset value is smaller than the first preset value.
In the present embodiment, based on the 1 st embodiment of the above display control method, in the 3 rd embodiment, when the number of the light emitting groups is 3 or more,firstly, obtaining the average value lambda of the light-emitting wavelengths of different light-emitting groups under the same preset drive current0And then, the driving current of the driving integrated circuit 20 corresponding to the light emitting group is adjusted according to the average value and the light emitting wavelength, and the specific adjustment method is as follows: the light-emitting wavelength of a certain light-emitting group is more than or equal to the average value lambda0Then, the driving current of the driving integrated circuit 20 corresponding to the light-emitting group is increased to decrease the light-emitting wavelength of the light-emitting group, so that the light-emitting wavelength of the light-emitting group is equal to the average value λ0Is smaller than the second predetermined value, e.g. 1nm, whereas if the emission wavelength of a certain one of the light-emitting groups is smaller than the average value λ0Then, the driving current of the driving integrated circuit 20 corresponding to the light-emitting group is decreased to increase the light-emitting wavelength of the light-emitting group, so that the light-emitting wavelength of the light-emitting group is equal to the average value λ0Is smaller than the second preset value, e.g. 1nm, in short, the direction of the driving current is adjusted such that the adjusted emission wavelength of the emission group approaches the average value λ0Thereby obtaining good color uniformity. In this embodiment, the second preset threshold is smaller than the first preset threshold, so that when the number of the light emitting groups is 3 or more than 3, the difference between the adjusted light emitting wavelengths of the different light emitting groups is further reduced, and the color uniformity is further improved.
Further, the step of adjusting the driving current of the corresponding light-emitting group according to the average value and the light-emitting wavelength to make the absolute value of the difference between the adjusted light-emitting wavelength of the light-emitting group and the average value smaller than a second preset value includes:
step S241 of increasing the driving current of the light emitting group having the light emitting wavelength greater than or equal to the average value, and/or
Step S242 reduces the driving current of the light emitting group having the light emitting wavelength smaller than the average value.
In this embodiment, based on the 3 rd embodiment of the above display control method, in the 4 th embodiment, in the 3 rd and above light-emitting groups, if the light-emitting wavelengths of some light-emitting groups are greater than or equal to the average value, the driving current of the driving integrated circuit 20 correspondingly connected to these light-emitting groups is increased to reduce the light-emitting wavelengths of these light-emitting groups, so that the absolute value of the difference between the light-emitting wavelengths of these light-emitting groups and the average value is smaller than a second preset value, such as 1nm, to obtain good color uniformity, and reduce the cost of the production and sales links; and the light-emitting wavelengths of the other light-emitting groups are smaller than the average value, the driving current of the driving integrated circuit 20 corresponding to the light-emitting groups is reduced to increase the light-emitting wavelengths of the light-emitting groups, so that the absolute value of the difference between the light-emitting wavelengths of the light-emitting groups and the average value is smaller than a second preset value, such as 1nm, so as to obtain good color uniformity and reduce the cost in the production and sale links.
In summary, according to the display device 100 and the display control method of the present invention, at least two sets of light emitting groups are provided, and the BIN ranges of the LEDs 10 of the same light emitting group are the same, the driving integrated circuits 20 of the corresponding number are connected to and drive the LEDs 10 of the corresponding light emitting group in a one-to-one correspondence, and the driving currents output by the driving integrated circuits 20 connected to different light emitting groups are adjusted, so that the light emitting wavelengths of different light emitting groups are adjusted to be close to each other, and thus when the LEDs 10 of different BIN ranges are used in the same display device 100, good color uniformity is obtained, and the cost of production and sales links is reduced.
In order to achieve the above object, the present invention further provides a display device 100, wherein the display device 100 comprises a memory, a processor and a display device control program stored in the memory and capable of running on the processor, and the display device control program realizes the steps of the display control method when executed by the processor.
To achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a display control program that, when executed by a processor, implements the steps of the control method of the display apparatus 100 as described above.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (12)

1. A display device, characterized in that the display device comprises:
at least two groups of light-emitting groups, each group of light-emitting group comprises a plurality of LEDs, the BIN ranges of the LEDs in the same group are the same,
and the driving integrated circuits are connected and used for driving the light emitting groups.
2. The display device as claimed in claim 1, wherein the number of the light emitting groups is an even number, the LEDs of any two of the light emitting groups form a plurality of rows, and the LEDs of the two light emitting groups of each row are arranged at intervals; or
The number of the light-emitting groups is even, the LEDs of any two light-emitting groups form a plurality of rows, and the LEDs of the two light-emitting groups in each row are arranged at intervals.
3. The display device of claim 1,
the number of the light-emitting groups is 3 or an odd number more than 3, a plurality of groups of LEDs of the light-emitting groups form a plurality of rows, and adjacent LEDs in each row belong to different light-emitting groups; or
The number of the light-emitting groups is 3 or an odd number more than 3, a plurality of groups of the LEDs of the light-emitting groups form a plurality of rows, and adjacent LEDs in each row belong to different light-emitting groups.
4. The display device according to claim 1, wherein each of the light emitting groups is arranged in a plurality of rows or a plurality of columns, and the light emitting groups of adjacent rows and/or adjacent columns belong to different BIN ranges.
5. The display device of claim 1, wherein the plurality of LEDs of the light emitting group emit light of the same color.
6. The display device according to any one of claims 1 to 5, wherein the LED is a miniLED or a micro LED.
7. A display control method applied to the display device according to any one of claims 1 to 6, the control method comprising the steps of:
acquiring the light-emitting wavelength of the light-emitting group under the same preset driving current;
and adjusting the driving current corresponding to the light-emitting groups according to the light-emitting wavelength so as to enable the absolute value of the difference value of the light-emitting wavelengths of the LEDs of any two groups of the light-emitting groups to be smaller than a first preset value.
8. The display control method according to claim 7, wherein when the light-emitting groups are two groups, the step of adjusting the driving current corresponding to the light-emitting group according to the light-emitting wavelength comprises:
increasing the drive current of the longer wavelength light emitting group; and/or
The driving current of the light emitting group having the shorter wavelength is reduced.
9. The method according to claim 7, wherein when the light emitting groups are three or more groups, the step of adjusting the driving current corresponding to the light emitting groups according to the emission wavelengths comprises:
calculating an average value of the light emitting wavelengths based on the acquired light emitting wavelength of each of the light emitting groups;
and adjusting the driving current of the corresponding light-emitting group according to the average value and the light-emitting wavelength, so that the absolute value of the difference between the adjusted light-emitting wavelength of the light-emitting group and the average value is smaller than a second preset value, and the second preset value is smaller than the first preset value.
10. The method according to claim 9, wherein the step of adjusting the driving current of the corresponding light-emitting group according to the average value and the light-emitting wavelength so that the absolute value of the difference between the adjusted light-emitting wavelength of the light-emitting group and the average value is smaller than a second preset value comprises:
increasing the drive current of a light emitting group having a light emitting wavelength greater than or equal to the average value, and/or
And reducing the driving current of the light emitting group with the light emitting wavelength smaller than the average value.
11. A display device comprising a memory, a processor and a display control program stored on the memory and executable on the processor, the display control program when executed by the processor implementing the steps of the display control method according to any one of claims 7 to 10.
12. A computer-readable storage medium having a display control program stored thereon, which when executed by a processor implements the steps of the display control method according to any one of claims 7-10.
CN202011317038.3A 2020-11-20 2020-11-20 Display device, display control method, and computer-readable storage medium Active CN112365814B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011317038.3A CN112365814B (en) 2020-11-20 2020-11-20 Display device, display control method, and computer-readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011317038.3A CN112365814B (en) 2020-11-20 2020-11-20 Display device, display control method, and computer-readable storage medium

Publications (2)

Publication Number Publication Date
CN112365814A true CN112365814A (en) 2021-02-12
CN112365814B CN112365814B (en) 2023-06-27

Family

ID=74533095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011317038.3A Active CN112365814B (en) 2020-11-20 2020-11-20 Display device, display control method, and computer-readable storage medium

Country Status (1)

Country Link
CN (1) CN112365814B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006145886A (en) * 2004-11-19 2006-06-08 Sony Corp Display device and its control method
US20080180414A1 (en) * 2007-01-30 2008-07-31 Kai Ming Fung Method and apparatus for controlling light emitting diode
CN101303475A (en) * 2007-05-09 2008-11-12 奇美电子股份有限公司 LED backlight module and LCD using the same
CN101737641A (en) * 2008-11-11 2010-06-16 奇美电子股份有限公司 Light-emitting diode light source module and application thereof
CN102644884A (en) * 2011-05-09 2012-08-22 京东方科技集团股份有限公司 Backlight source and driving method thereof as well as liquid crystal display device
JP2013069824A (en) * 2011-09-22 2013-04-18 Nichia Chem Ind Ltd Light emitting device
US20130193862A1 (en) * 2010-09-30 2013-08-01 Nichia Corporation Light-emitting apparatus and method of manufacturing light-emitting apparatus
CN103246110A (en) * 2013-04-26 2013-08-14 青岛海信电器股份有限公司 LED light source, manufacturing method thereof, LED backlight and display device
WO2015188471A1 (en) * 2014-06-11 2015-12-17 京东方科技集团股份有限公司 Pixel circuit, display device and method for driving pixel circuit
CN206575629U (en) * 2016-11-25 2017-10-20 江苏优为视界科技有限公司 The high LED lamp tube of the photochromic uniformity

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006145886A (en) * 2004-11-19 2006-06-08 Sony Corp Display device and its control method
US20080180414A1 (en) * 2007-01-30 2008-07-31 Kai Ming Fung Method and apparatus for controlling light emitting diode
CN101303475A (en) * 2007-05-09 2008-11-12 奇美电子股份有限公司 LED backlight module and LCD using the same
CN101737641A (en) * 2008-11-11 2010-06-16 奇美电子股份有限公司 Light-emitting diode light source module and application thereof
US20130193862A1 (en) * 2010-09-30 2013-08-01 Nichia Corporation Light-emitting apparatus and method of manufacturing light-emitting apparatus
CN102644884A (en) * 2011-05-09 2012-08-22 京东方科技集团股份有限公司 Backlight source and driving method thereof as well as liquid crystal display device
JP2013069824A (en) * 2011-09-22 2013-04-18 Nichia Chem Ind Ltd Light emitting device
CN103246110A (en) * 2013-04-26 2013-08-14 青岛海信电器股份有限公司 LED light source, manufacturing method thereof, LED backlight and display device
WO2015188471A1 (en) * 2014-06-11 2015-12-17 京东方科技集团股份有限公司 Pixel circuit, display device and method for driving pixel circuit
CN206575629U (en) * 2016-11-25 2017-10-20 江苏优为视界科技有限公司 The high LED lamp tube of the photochromic uniformity

Also Published As

Publication number Publication date
CN112365814B (en) 2023-06-27

Similar Documents

Publication Publication Date Title
KR102599600B1 (en) Display apparatus and driving method thereof
KR101296518B1 (en) Semiconductor light source device, semiconductor light source control method, and projection apparatus
KR102208302B1 (en) Display apparatus and calibration method thereof
KR102132549B1 (en) Method and device for compensating the brightness of LED
US20130038241A1 (en) Methods, Apparatus and Articles of Manufacture to Calibrate Lighting Units
US20190164471A1 (en) Current control method and apparatus thereof
BE1025914B1 (en) Method and Device for Calibrating LED Lighting
US20120313979A1 (en) Illumination apparatus, method for controlling the same, and liquid crystal display apparatus
JP2010535128A (en) Method for adjusting lighting system and lighting system
JP5037694B2 (en) Illumination device and liquid crystal display device including the same
CN112365814B (en) Display device, display control method, and computer-readable storage medium
JP6566663B2 (en) Image display apparatus and control method thereof
JP6467771B2 (en) display
CN108604621B (en) Display device and display method
US8513897B2 (en) OLED display with a current stabilizing device and its driving method
JP6610032B2 (en) display
RU2467522C1 (en) Lighting device and liquid-crystal display device equipped with it
CN116546692B (en) Light-emitting substrate and driving method
JP6771789B1 (en) Light source control device, light source control method, and light source control program
WO2024060254A1 (en) System and method for controlling lamp device, lamp device, and storage medium
JP7043277B2 (en) Light source module and backlight device
WO2022268879A1 (en) Method for operating an automotive lighting device
CN110873996B (en) Projection device and monitoring method of light source module
EP2044811A1 (en) Color point adjustment
JP6432200B2 (en) In-vehicle display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant