CN116189609A - Lamp panel display device, lamp panel display system and display - Google Patents
Lamp panel display device, lamp panel display system and display Download PDFInfo
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- CN116189609A CN116189609A CN202310296004.8A CN202310296004A CN116189609A CN 116189609 A CN116189609 A CN 116189609A CN 202310296004 A CN202310296004 A CN 202310296004A CN 116189609 A CN116189609 A CN 116189609A
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- 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]
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- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
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- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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- 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
Abstract
The embodiment of the application provides a lamp panel display device, a lamp panel display system and a display, the lamp panel display device comprises a plurality of drivers and a plurality of display units, each display unit is electrically connected with each driver in a one-to-one correspondence mode, each display unit comprises two chromaticity units and a brightness unit located between the two chromaticity units, each driver obtains corresponding display data and generates corresponding driving signals according to the display data, each chromaticity unit emits light according to the driving signals, the brightness unit provides compensation light according to the driving signals when each chromaticity unit emits light, compared with the traditional RGBW LED lamp panel, the number of W LEDs corresponding to the brightness units is reduced based on the LED lamp panel formed by the display units, distortion of the color of the lamp panel is reduced, when a pure-color picture is displayed, the brightness unit provides corresponding compensation light along with the brightness of the chromaticity units, the total brightness of the lamp panel is improved, and the visibility of the display picture of the LED lamp panel is improved.
Description
Technical Field
The embodiment of the application relates to the field of LED display, in particular to a lamp panel display device, a lamp panel display system and a display.
Background
With the development of display technology, mini LEDs become a research hotspot of LED display screens due to the advantages of energy conservation, simple mechanism, small size, thinness and the like. The Mini LED generally adopts R (red), G (green) and B (blue) three-color Mini LEDs, and can realize the display effect of high-brightness three-primary color without missing high-color saturated color. In order to improve the display brightness, a technician adds W (white) LED lamps into the RGB three-color MiniLED, and repeatedly arranges the four RGBW LED lamps as a unit to construct an LED lamp panel.
In the RGBW LED lamp panel display process, the WLED lamp can be started only when the R, G and B LED lamps are fully started. Therefore, when the pure-color picture is displayed, the brightness of the display picture of the RGBW LED lamp panel is lower than that of the display brightness of the RGB LED lamp panel, and the picture visibility is poor; when a color picture is displayed, the more the W LED lamps are, the stronger the color distortion degree of the lamp panel is, and the poor visibility of the picture can be caused.
Disclosure of Invention
The application provides a lamp panel display device, lamp panel display system and display for solve the technical problem that the picture visibility of RGBW LED lamp panel is poor.
In a first aspect, embodiments of the present application provide a light panel display device, including: the display device comprises a plurality of drivers and a plurality of display units, wherein each display unit is electrically connected with each driver in a one-to-one correspondence manner;
the display unit comprises two chromaticity units and a brightness unit, and the brightness unit is positioned between the two chromaticity units;
each driver obtains corresponding display data and generates corresponding driving signals according to the display data;
each chromaticity unit emits light according to the driving signal, and the brightness unit provides compensation light according to the driving signal when each chromaticity unit emits light.
In the above technical scheme, the provided display unit comprises two chromaticity units and a brightness unit, the brightness unit provides corresponding compensation light when at least one chromaticity unit in the display unit emits light, compared with the traditional RGBW LED lamp panel, the LED lamp panel formed based on the display unit reduces the number of W LEDs corresponding to the brightness unit, reduces the distortion degree of the color of the lamp panel, improves the chromaticity and the optical quality of the LED lamp panel, reduces the production cost, and in addition, when a pure-color picture is displayed, the brightness unit can provide corresponding compensation light along with the brightness of the chromaticity unit, compared with the traditional RGBW LED lamp panel, the total brightness is improved, and the visibility of the display picture of the LED lamp panel is improved.
Optionally, the chromaticity unit includes a plurality of chromaticity light emitting sub-units with the same size, and the luminance unit includes one luminance light emitting sub-unit;
the chromaticity light-emitting sub-units and the brightness light-emitting sub-units are rectangular light-emitting units, and each chromaticity light-emitting sub-unit is respectively perpendicular to the brightness light-emitting sub-units and sequentially arranged along the long side direction of the brightness light-emitting sub-units.
In the technical scheme, the color intensity light-emitting sub-units in the display units are vertically arranged with the brightness light-emitting sub-units and are distributed in sequence along the long side direction of the brightness light-emitting sub-units, so that the same compensation light is provided for the color intensity light-emitting sub-units when the brightness light-emitting sub-units emit light, and the brightness of each display unit is improved more uniformly.
Optionally, the length of the long side of the luminance light emitting subunit is N times the length of the wide side of the chrominance light emitting subunit, where N is the number of the chrominance light emitting subunits in the chrominance unit.
Optionally, the driving signal includes two driving sub-signals, each driving sub-signal including a chrominance driving signal and a luminance driving signal;
each chromaticity driving signal drives a corresponding chromaticity unit to emit light;
the luminance unit emits light when at least one effective luminance driving signal is obtained.
Optionally, the chromaticity driving signal includes a plurality of chromaticity driving sub-signals, and each chromaticity driving sub-signal corresponds to each chromaticity light emitting sub-unit in the chromaticity unit one by one;
the luminance unit is operable to synchronize luminance drive signals obtained when the chrominance unit obtains at least one valid chrominance drive sub-signal.
Optionally, the driver is provided with two chroma driving signal output ends and two brightness driving signal output ends, each chroma driving signal output end is electrically connected with a corresponding chroma unit, and two brightness driving signal output ends are electrically connected with one brightness unit;
the driver transmits corresponding chrominance driving signals to the corresponding chrominance units through at least one chrominance driving signal output end, and transmits the luminance driving signals to the luminance units through two luminance driving signal output ends.
In the above technical solution, the driver uses the luminance driving signals generated by the two luminance driving signal output terminals to drive the luminance units to emit light, so that when any one of the luminance units emits light, the luminance unit obtains the corresponding luminance driving signal from the corresponding luminance driving signal output terminal thereof, so as to generate the corresponding compensation light, thereby improving the visibility of the display screen of the lamp panel display device.
Optionally, the display units are distributed in an array, drivers corresponding to the display units in each column are electrically connected in cascade, and each cascade driver acquires display signals from the controller;
the display signals comprise display data packets of display units of corresponding rows or corresponding columns of the cascade driver;
each cascade driver acquires display data with preset length from the display data packet, and transmits a display signal containing the rest display data to the next driver when the next driver exists.
Optionally, the display data packet includes address bits corresponding to each cascade driver and display data corresponding to each address bit, and the cascade driver acquires the address bits from the display data packet;
and intercepting display data positioned at the corresponding position according to the address bits, wherein the number of the address bits is the same as that of the cascade drivers.
In a second aspect, embodiments of the present application provide a light panel display system, including a controller and a light panel display device according to any one of the first aspect, where the controller is electrically connected to each driver in the light panel display device;
for each display unit, the controller determines a luminance display signal corresponding to a luminance unit according to the chrominance display signals corresponding to the two chrominance units, and generates display data according to the chrominance display signals and the luminance display signals.
In a third aspect, an embodiment of the present application provides a display, including a liquid crystal screen and a light panel display system related to the second aspect, where the liquid crystal screen is disposed on a front side of each display unit, and each display unit provides brightness for the liquid crystal screen;
the liquid crystal screen is electrically connected with the controller, and the controller provides liquid crystal display driving signals for the liquid crystal screen.
The embodiment of the application provides a lamp plate display device, lamp plate display system and display, lamp plate display device includes: the LED lamp panel comprises a plurality of drivers and a plurality of display units, wherein each display unit is electrically connected with each driver in a one-to-one correspondence manner, each display unit comprises two chromaticity units and a brightness unit, the brightness units are positioned between the two chromaticity units, each driver obtains corresponding display data and generates corresponding driving signals according to the display data, each chromaticity unit emits light according to the driving signals, the brightness units provide compensation light according to the driving signals when each chromaticity unit emits light, compared with the traditional RGBW LED lamp panel, the LED lamp panel formed by the display units reduces the number of W LEDs corresponding to the brightness units, reduces the distortion degree of the colors of the lamp panel, improves the chromaticity and the optical quality of the LED lamp panel, and in addition, when a pure-color picture is displayed, the brightness units provide corresponding compensation light along with the brightness of the chromaticity units, the total brightness of the lamp panel is improved, and the visibility of the display picture of the LED lamp panel is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a circuit configuration diagram of a conventional lamp panel display device according to an exemplary embodiment of the present application;
fig. 2 is a circuit configuration diagram of a lamp panel display device according to an exemplary embodiment of the present application;
fig. 3A is a schematic structural diagram of a display unit according to an exemplary embodiment of the present application;
fig. 3B is a schematic structural diagram of a display unit according to another exemplary embodiment provided in the present application;
fig. 4A is a schematic structural diagram of a display unit according to another exemplary embodiment provided in the present application;
fig. 4B is a schematic structural diagram of a display unit provided according to another exemplary embodiment of the present application;
fig. 5A is a circuit configuration diagram of a lamp panel display device according to another exemplary embodiment of the present application;
fig. 5B is a circuit configuration diagram of a light panel display device according to another exemplary embodiment of the present application;
FIG. 6 is a circuit block diagram of a light panel display system provided according to an exemplary embodiment of the present application;
fig. 7 is a circuit configuration diagram of a display provided according to an exemplary embodiment of the present application.
Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element, and furthermore, elements having the same name in different embodiments of the present application may have the same meaning or may have different meanings, a particular meaning of which is to be determined by its interpretation in this particular embodiment or by further combining the context of this particular embodiment.
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
With the development of display technology, mini LEDs become a research hotspot of LED display screens due to the advantages of energy conservation, simple mechanism, small size, thinness and the like. The Mini LED generally adopts R (red), G (green) and B (blue) three-color Mini LEDs, and can realize the display effect of high-brightness three-primary color without missing high-color saturated color. In order to improve the display brightness, a technician adds W (white) LED lamps into the RGB three-color MiniLED, and repeatedly arranges the four RGBW LED lamps as a unit to construct an LED lamp panel.
More specifically, as shown in fig. 1, a circuit configuration diagram of a conventional lamp panel display device constructed based on RGBW LEDs includes a multi-row display structure, each of which includes a display unit composed of a plurality of RGBW LEDs, in which R LEDs, G LEDs, B LEDs, and W LEDs are sequentially arranged. In each display structure, the arrangement order of each display unit is the same as the arrangement order of the RGBW LEDs. In the conventional lamp panel display device 10, a plurality of drivers 101 are further provided, and each driver 101 drives at least one group of display units. Each column driver 101 is cascade-connected, and serial transmission is performed between each column driver 101 to transmit display data, and each driver 101 converts the obtained display data into a driving signal to drive a corresponding display unit to emit light. In the circuit structure shown in fig. 1, each driver 101 is electrically connected to two groups of RGBW LEDs, each driver 101 is provided with 8 driving signal output terminals, each LED is provided with a driving signal input terminal, and each driving signal output terminal is electrically connected to each driving signal input terminal in a one-to-one correspondence.
In the RGBW LED lamp panel display process, the WLED lamp can be started only when the R, G and B LED lamps are fully started. Therefore, when the pure-color picture is displayed, the brightness of the display picture of the RGBW LED lamp panel is lower than that of the display brightness of the RGB LED lamp panel, and the picture visibility is poor; when a color picture is displayed, as the arrangement of the W LEDs enables R, G and B LEDs for displaying the color picture to be distributed more dispersedly, compared with an RGB LED lamp panel, the RGBW lamp panel increases the distortion degree of color display and also can cause poor visibility of the picture.
In order to solve the above problems, the present application provides a panel display device, a panel display system and a display, which are used for solving the technical problem of poor visibility of the pictures of the RGBW LED panels. The technical conception of the application is as follows: providing a lamp panel display device, comprising: the LED lamp panel comprises a plurality of drivers and a plurality of display units, wherein each display unit is electrically connected with each driver in a one-to-one correspondence manner, each display unit comprises two chromaticity units and a brightness unit, each brightness unit is positioned between the two chromaticity units, each driver obtains corresponding display data and generates corresponding driving signals according to the display data, each chromaticity unit emits light according to the driving signals, and when each chromaticity unit emits light, the brightness unit provides compensation light according to the driving signals.
The lamp panel display device proposed in the present application is explained below. Fig. 2 is a circuit configuration diagram of a lamp panel display device according to an exemplary embodiment of the present application. As shown in fig. 2, the lamp panel display device 20 includes a plurality of drivers 22 and a plurality of display units 21, each display unit 21 and each driver 22 are electrically connected in a one-to-one correspondence, each driver 22 obtains corresponding display data, generates a corresponding driving signal according to the display data, and transmits the driving signal to the corresponding display unit 21 to drive the display unit 21 to emit light.
More specifically, the display unit 21 includes two chromaticity units and one luminance unit, each of which emits light according to the driving signal, and the luminance unit provides compensation light according to the driving signal when each of the chromaticity units emits light. More specifically, the chromaticity unit is used to generate light required for displaying a color picture on the lamp panel display device 20, and the luminance unit is used to provide corresponding compensation light when the chromaticity unit emits light, and in an embodiment, the compensation light is white light.
In the above technical scheme, the provided display unit comprises two chromaticity units and a luminance unit, the luminance unit provides corresponding compensation light when at least one chromaticity unit in the display unit emits light, compared with the traditional RGBW LED lamp panel, the LED lamp panel formed based on the display unit reduces the number of W LEDs corresponding to the luminance unit, reduces the distortion degree of the color of the lamp panel, improves the chromaticity and the optical quality of the LED lamp panel, and in addition, when a pure-color picture is displayed, the luminance unit can provide corresponding compensation light along with the luminance of the chromaticity unit, the total luminance of the lamp panel is improved, and the visibility of the display picture of the LED lamp panel is improved.
The positional relationship of the luminance unit and the chromaticity unit in the display unit 21 is explained below. In one display unit 21, the luminance unit is located between two chromaticity units, and the luminance unit and the chromaticity units are arranged in a vertical relationship on the lamp panel display device 20. More specifically, the chromaticity unit includes a plurality of chromaticity light emitting sub-units of the same size, and the luminance unit includes one luminance light emitting sub-unit. The chromaticity light-emitting subunits and the brightness light-emitting subunits are rectangular light-emitting units, and the chromaticity light-emitting subunits are respectively perpendicular to the brightness light-emitting subunits and are sequentially arranged along the long side direction of the brightness light-emitting subunits. In order to make the cover structure of the display unit composed of the luminance light emitting sub-unit and the chrominance light emitting sub-unit on the lamp panel display device 20 be a rectangular structure, the length of the long side of the luminance light emitting sub-unit is N times of the length of the wide side of the chrominance light emitting sub-unit, wherein N is the number of the chrominance light emitting sub-units in the chrominance unit.
In one embodiment, as shown in fig. 3A, in the display unit 21, two chromaticity units 211 are located on the left and right sides of the luminance unit 212. As for the circuit configuration of the display unit, as shown in fig. 4A, the case and arrangement states of the light emitting sub-units included in the chromaticity unit 211 and the luminance unit 212 are shown, one luminance light emitting sub-unit 214 is included in the luminance unit 212, a plurality of chromaticity light emitting sub-units 213 are included in the chromaticity unit 211, and in an embodiment, the chromaticity unit 211 includes: a red light emitting subunit, a green light emitting subunit, and a blue light emitting subunit. When the luminance light emitting sub-unit 214 is placed in the vertical direction on the lamp panel display device 20, the chromaticity light emitting sub-unit 213 is placed in the horizontal direction. In order to make the display unit 21 have a rectangular structure, the length of the long side of the luminance light-emitting subunit 214 is an integer multiple of the length of the wide side of the chrominance light-emitting subunit 213. In the schematic structure shown in fig. 4A, the length of the long side of the luminance light-emitting subunit 214 is 3 times the length of the wide side of the chrominance light-emitting subunit 213.
As shown in fig. 5A, each display unit 21 is arranged in an array, and the luminance light emitting sub-units 214 in each display unit 21 are arranged in the light panel display device 20 in the lateral direction, that is, the width direction of the luminance light emitting sub-units 214 is the same as the longitudinal direction of the light panel display device 20. In contrast, the arrangement direction of the chromaticity light emitting subunits 213 in the display unit 21 is perpendicular to the arrangement direction of the luminance light emitting subunits 214, and is distributed along the longitudinal direction, that is, the long side direction of the chromaticity light emitting subunits 213 is the same as the long side direction of the light panel display device 20.
The plurality of drivers 22 in the lamp panel display device 20 are electrically connected to the display units 21 in a one-to-one correspondence manner, and more specifically, the drivers 22 are provided with two groups of driving signal output ends, each group of driving signal output ends comprises a chromaticity driving signal output end and a luminance driving signal output end, the luminance driving signal output ends in the two groups of driving signal output ends are electrically connected to a luminance unit, and the chromaticity driving signal output ends in the groups of driving signal output ends are electrically connected to the corresponding chromaticity units. The driver 22 acquires the display data and generates a driving signal to drive the corresponding display unit to emit light according to the display data. The driving signal includes two driving sub-signals, each driving sub-signal includes a chrominance driving signal and a luminance driving signal, the driver 22 sends the corresponding chrominance driving signal to the corresponding chrominance unit 211 through at least one chrominance driving signal output end, and sends the luminance driving signal to the luminance unit 212 through two luminance driving signal output ends, and the luminance intensity of the luminance unit 212 is the sum of the luminance intensities corresponding to the luminance driving signals. Wherein the chrominance driving signal and the luminance driving signal obtained by the driver 22 are determined by a controller which sends the driving signals to the driver 22, and the luminance driving signals output by the two luminance driving signal output ends are the same. Each chromaticity driving signal drives the corresponding chromaticity unit to emit light, and the luminance unit synchronously and effectively emits light under the driving of the luminance driving signal when the chromaticity unit obtains at least one effective chromaticity driving signal. That is, the driver 22 simultaneously transmits the luminance driving signal and the chrominance driving signal and simultaneously activates to simultaneously drive the chrominance unit 211 and the luminance unit 212 to simultaneously emit light when the driving signal is started to the display unit 21 electrically connected thereto.
In the case where the chromaticity unit 211 includes a plurality of chromaticity light emitting subunits 213 and the luminance unit 212 includes one luminance light emitting subunit 214, one chromaticity driving signal output terminal includes a plurality of chromaticity driving sub-signal output terminals, one luminance driving signal output terminal includes one luminance driving sub-signal output terminal, the plurality of chromaticity driving sub-signal output terminals and the plurality of luminance light emitting subunits 214 are electrically connected in one-to-one correspondence, and one luminance driving sub-signal output terminal and the luminance light emitting subunit are electrically connected. The chromaticity driving signal generated by the driver 22 includes a plurality of chromaticity driving sub-signals, and each chromaticity driving sub-signal corresponds to each chromaticity light emitting sub-unit 213 in the chromaticity unit 211 one by one. In one embodiment, the chrominance driving sub-signal and the luminance driving sub-signal have values ranging from 0 to 255.
When the chromaticity unit 211 in the display unit 21 emits light, at least one chromaticity light emitting subunit 213 in the chromaticity unit 211 obtains a driving sub-signal other than 0, the chromaticity driving sub-signal is valid, the chromaticity unit 211 emits light, and the luminance unit 212 in the same display unit 21 as the chromaticity unit 211 obtains a valid luminance driving signal, and emits light under the driving of the luminance driving signal, and the generated compensation light is used to increase the luminance of the chromaticity unit 211. When both the two chromaticity units 211 in the display unit 21 emit light, both the two chromaticity units 211 obtain effective chromaticity driving signals, and correspondingly, the luminance unit 212 obtains two effective luminance driving signals, and the luminance unit 212 is driven by the two luminance driving signals to jointly emit light for simultaneously compensating the emitted light luminance of the two chromaticity units 211.
In the above technical solution, the driver uses the luminance driving signals generated by the two luminance driving signal output ends to drive the luminance units to emit light, so that when any one of the luminance units emits light, the luminance unit obtains the corresponding luminance driving signal from the corresponding luminance driving signal output end to generate the corresponding compensation light, so as to improve the visibility of the display screen of the lamp panel display device.
In another embodiment, as shown in fig. 3B, in the display unit 21, two chromaticity units 211 are located on the upper and lower sides of the luminance unit 212. As for the circuit configuration of the display unit, as shown in fig. 4B, the case and arrangement states of the light emitting sub-units included in the chromaticity unit 211 and the luminance unit 212 are shown, one luminance light emitting sub-unit 214 is included in the luminance unit 212, a plurality of chromaticity light emitting sub-units 213 are included in the chromaticity unit 211, and in an embodiment, the chromaticity unit includes: a red light emitting subunit, a green light emitting subunit, and a blue light emitting subunit. When the luminance light emitting sub-unit 214 is placed in the horizontal direction on the lamp panel display device 20, the chromaticity light emitting sub-unit 213 is placed in the vertical direction. The dimensional relationship between the luminance light-emitting subunit 214 and the chrominance light-emitting subunit 213 is the same as that of the embodiment corresponding to fig. 4A, and will not be described here again.
As shown in fig. 5B, each display unit 21 is arranged in an array, and the luminance light emitting sub-units 214 in each display unit 21 are arranged in the longitudinal direction in the light panel display device 20, that is, the longitudinal direction of the luminance light emitting sub-units 214 is the same as the longitudinal direction of the light panel display device 20. In contrast, the arrangement direction of the chromaticity light emitting subunits 213 in the display unit 21 is perpendicular to the arrangement direction of the luminance light emitting subunits 214, and is distributed along the lateral direction, that is, the width direction of the chromaticity light emitting subunits 213 is the same as the long side direction of the light panel display device 20.
In the circuit structure shown in fig. 5B, the driving process of the driver 22 on the corresponding display unit 21 is the same as that described in the embodiment corresponding to fig. 5A, and will not be repeated here.
In the following description of the process of acquiring display data by each driver 22, in the circuit structure 20 of the lamp panel display device shown in fig. 5A and 5B, the display units 21 are distributed in an array, and the drivers 22 corresponding to each column of the display units 21 are electrically connected in cascade, more specifically, the drivers 22 are provided with a display signal input end and a display signal output end, the display signal input end of each driver 22 is electrically connected to the display signal output end or the controller of the previous driver, and when the driver is provided with the next driver, the display signal output end of the driver 22 is electrically connected to the display signal input end of the next driver. Each driver 22 obtains a display signal from the controller, the display signal including display data packets of display units of a corresponding row or column of the drivers in cascade, each driver obtains display data of a preset length from the display data packets, and transmits a display signal containing the remaining display data to the next driver when the next driver 22 is present.
More specifically, a first driver in the cascaded drivers acquires a display signal from the controller, wherein the display signal comprises a plurality of groups of display data, each group of display data comprises an address bit corresponding to the driver and display data corresponding to the address bit, the first driver acquires the corresponding address bit from the display signal, and the display data at the corresponding position is intercepted from the display signal according to the address bit. The first driver transmits a display signal containing the remaining address bits and the remaining display data to the next driver electrically connected thereto until each driver in the cascade driver completes the corresponding display data acquisition. The process of acquiring the corresponding display data by the remaining drivers is the same as the process of acquiring the first driver, and will not be described here again.
The driver 22 converts the obtained driving data into a corresponding driving electric signal, and transmits the driving electric signal to the corresponding light emitting subunit through the corresponding signal output terminal to drive the light emitting subunit to emit the corresponding light intensity.
Based on the above-mentioned lamp panel display device, the present application provides a lamp panel display system, and the circuit structure of the lamp panel display system is as shown in fig. 6, and the lamp panel display system includes a controller 30 and a lamp panel display device 20, where the lamp panel display device 20 and the controller 30 are electrically connected.
More specifically, the controller 30 is provided with a plurality of display signal output terminals, each of which is electrically connected to the first driver of the corresponding cascade driver 22 for transmitting display signals to the drivers 22 of each column cascade. The display signal is display data corresponding to each column of display units 21, each display data including a chromaticity display signal and a luminance display signal, and the controller 30 determines the luminance display signal corresponding to the luminance unit from the chromaticity display signals corresponding to the two chromaticity units and generates display data from the chromaticity display signal and the luminance display signal. In an embodiment, when two chromaticity units in a display unit emit light at the same time and the display signals corresponding to the two chromaticity units are different, the controller 30 determines a corresponding luminance display signal according to the chromaticity display signals of each chromaticity unit, and the controller 30 adds the data corresponding to the two luminance display signals and then averages the data to determine the luminance display signal to be transmitted to the display unit. For example: when two chromaticity units in a display unit emit light at the same time, the gray scale values of the luminance display signals corresponding to the two chromaticity units determined by the controller 30 are 128 and 54 respectively, the controller 30 averages the two data, determines the final gray scale values of the two luminance display signals to be 91 and 91, and the controller 30 transmits the two luminance display signals to the corresponding display unit, wherein the luminance units in the display unit emit light according to the two gray scale values, and the light intensity is the sum of the light intensities corresponding to the two gray scale values, so that the number of the luminance units is reduced under the condition that the total compensation light of the two chromaticity units in the display unit is not reduced, the distribution compactness of the chromaticity units in the display panel is increased, and the color distortion of the lamp panel is reduced.
After the controller 30 sends the display signals to the drivers 22, the drivers 22 sequentially acquire the display data in the arrangement order, and generate the chromaticity driving signals and the luminance driving signals according to the display data.
The present application also provides a display, the circuit structure of which is shown in fig. 7, comprising a liquid crystal screen 40 and a lamp panel display system, wherein the liquid crystal screen 40 is electrically connected with the controller 30.
The liquid crystal screen 40 is disposed at the front side of each display unit 21, the controller 30 provides a liquid crystal display driving signal for the liquid crystal screen 40, meanwhile, the controller 30 provides a display signal for the lamp panel display device 20, the liquid crystal screen 40 adjusts the state of the internal imaging structure under the driving of the liquid crystal display driving signal, the lamp panel display device 20 emits light under the driving of the display signal, and the lamp panel display device formed by each display unit 21 projects the bright liquid crystal screen 40 to the liquid crystal screen 40 to generate a corresponding display picture. Because a luminance unit in the display unit provides compensation light for two chromaticity units, the total luminance is reduced when a color picture is displayed, the distortion degree and the production cost of the color of the lamp panel are reduced, and when a pure color picture is displayed, the luminance unit can provide corresponding compensation light along with the luminance of the chromaticity unit, compared with the traditional RGBW LED lamp panel, the total luminance is improved, and the visibility of the display picture of the LED lamp panel is improved.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A lamp panel display device, comprising: the display device comprises a plurality of drivers and a plurality of display units, wherein each display unit is electrically connected with each driver in a one-to-one correspondence manner;
the display unit comprises two chromaticity units and a brightness unit, and the brightness unit is positioned between the two chromaticity units;
each driver obtains corresponding display data and generates corresponding driving signals according to the display data;
each chromaticity unit emits light according to the driving signal, and the brightness unit provides compensation light according to the driving signal when each chromaticity unit emits light.
2. The light panel display device according to claim 1, wherein the chromaticity unit includes a plurality of chromaticity light emitting sub-units having the same size, and the luminance unit includes one luminance light emitting sub-unit;
the chromaticity light-emitting sub-units and the brightness light-emitting sub-units are rectangular light-emitting units, and each chromaticity light-emitting sub-unit is respectively perpendicular to the brightness light-emitting sub-units and sequentially arranged along the long side direction of the brightness light-emitting sub-units.
3. The lamp panel display device of claim 2, wherein a length of a long side of the luminance light emitting subunit is N times a length of a wide side of the chrominance light emitting subunit, wherein N is a number of the chrominance light emitting subunits in the chrominance unit.
4. The light panel display device of claim 1, wherein the drive signal comprises two drive sub-signals, each drive sub-signal comprising a chrominance drive signal and a luminance drive signal;
each chromaticity driving signal drives a corresponding chromaticity unit to emit light;
the luminance unit emits light when at least one effective luminance driving signal is obtained.
5. The lamp panel display device of claim 4, wherein the chromaticity drive signal includes a plurality of chromaticity drive sub-signals, each of the chromaticity drive sub-signals corresponding to each of the chromaticity light emitting sub-units in the chromaticity unit;
and the brightness unit is used for obtaining at least one effective chroma driving sub-signal when the chroma unit is used for obtaining the synchronous effective brightness driving signal.
6. The lamp panel display device of claim 4, wherein the driver is provided with two chromaticity drive signal output terminals and two luminance drive signal output terminals, each of the chromaticity drive signal output terminals is electrically connected with a corresponding chromaticity unit, and two of the luminance drive signal output terminals are electrically connected with the luminance unit;
the driver transmits corresponding chrominance driving signals to the corresponding chrominance units through at least one chrominance driving signal output end, and transmits the luminance driving signals to the luminance units through two luminance driving signal output ends.
7. The lamp panel display device according to claim 1, wherein the display units are distributed in an array, drivers corresponding to each column of the display units are electrically connected in cascade, and each cascade driver obtains a display signal from the controller;
the display signals comprise display data packets of display units of corresponding rows or corresponding columns of the cascade driver;
each cascade driver acquires display data with preset length from the display data packet, and transmits a display signal containing the rest display data to the next driver when the next driver exists.
8. The lamp panel display device of claim 7, wherein the display data packet includes address bits corresponding to each cascade driver and display data corresponding to each address bit, the cascade driver obtaining the address bits from the display data packet;
and intercepting display data positioned at the corresponding position according to the address bits, wherein the number of the address bits is the same as that of the cascade drivers.
9. A light panel display system comprising a controller and a light panel display device according to any one of claims 1 to 8, the controller being electrically connected to each driver in the light panel display device;
for each display unit, the controller determines a luminance display signal corresponding to a luminance unit according to the chrominance display signals corresponding to the two chrominance units, and generates display data according to the chrominance display signals and the luminance display signals.
10. A display comprising a liquid crystal screen and the lamp panel display system of claim 9, wherein the liquid crystal screen is disposed on a front side of each of the display units, each of the display units providing brightness to the liquid crystal screen;
the liquid crystal screen is electrically connected with the controller, and the controller provides liquid crystal display driving signals for the liquid crystal screen.
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