CN116107115A - Spliced light-emitting panel, backlight module and display device - Google Patents
Spliced light-emitting panel, backlight module and display device Download PDFInfo
- Publication number
- CN116107115A CN116107115A CN202211475536.XA CN202211475536A CN116107115A CN 116107115 A CN116107115 A CN 116107115A CN 202211475536 A CN202211475536 A CN 202211475536A CN 116107115 A CN116107115 A CN 116107115A
- Authority
- CN
- China
- Prior art keywords
- light emitting
- gap
- emitting element
- light
- brightness
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13336—Combining plural substrates to produce large-area displays, e.g. tiled displays
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133612—Electrical details
-
- 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
- G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
-
- 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
- G09F9/35—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 liquid crystals
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The application provides a concatenation luminescent panel, backlight unit and display device, concatenation luminescent panel is including having the backplate that holds the chamber, hold the intracavity and be equipped with a plurality of concatenation base plates together, adjacent two have first gap between the base plate, every all be equipped with a plurality of light emitting component on the base plate, a plurality of light emitting component include with the adjacent first light emitting component that sets up in first gap, first light emitting component is connected with luminance adjustment circuit, luminance adjustment circuit is used for adjusting when the width in first gap changes the luminance of first light emitting component, make the luminance of first light emitting component with the width in first gap is directly proportional. The problem that the substrate in the existing backlight module is easy to move to cause the formation of dark bands or bright spots at the seam of the substrate and influence the image quality is solved.
Description
Technical Field
The application relates to the technical field of display, in particular to a spliced light-emitting panel, a backlight module and a display device.
Background
The existing backlight module generally comprises a back plate, a plurality of substrates spliced together are arranged on the back plate, LED lamps arranged in an array are arranged on each substrate, and substrate gaps exist between two adjacent substrates. The backboard is fixed on the substrate in a viscose or screw mode, when the LED lamp is in a working heating state for a long time, the viscose performance between the substrate and the backboard is easily affected, so that the substrate is easy to move relative to the backboard, and the display device is kept vertically for a long time when in use, the position of the substrate is easily changed, so that the width of a substrate seam is changed, a dark band or a bright spot is easily formed at the substrate seam, and the image quality is easily affected.
Disclosure of Invention
The embodiment of the application provides a concatenation luminescent panel, backlight unit and display device, connects luminance adjustment circuit through the first light emitting component adjacent with first gap, and luminance adjustment circuit adjusts the luminance of first light emitting component to the direct proportion with first gap width when first gap width changes, has solved the base plate removal in the current backlight unit and has led to the base plate seam department to form dark zone or bright spot easily, influences the problem of image quality.
The invention is realized in such a way, the spliced light-emitting panel comprises a back plate with a containing cavity, a plurality of spliced substrates are arranged in the containing cavity, a first gap is arranged between two adjacent substrates, a plurality of light-emitting elements are arranged on each substrate, each light-emitting element comprises a first light-emitting element arranged adjacent to the first gap, the first light-emitting element is connected with a brightness adjusting circuit, and the brightness adjusting circuit is used for adjusting the brightness of the first light-emitting element when the width of the first gap changes, so that the brightness of the first light-emitting element is in direct proportion to the width of the first gap.
In one embodiment, the light emitting element is used for electrically connecting a power high potential signal input end and a power low potential signal input end so as to emit light under the control of the power high potential signal and the power low potential signal;
the brightness adjusting circuit comprises a variable resistor, wherein the variable resistor is connected between the first light emitting element and the power supply low potential signal input end, and the variable resistor is used for enabling the resistance value of the variable resistor to be inversely proportional to the width of the first gap when the width of the first gap is changed, so that the current value flowing through the first light emitting element is directly proportional to the width of the first gap.
In one embodiment, the accommodating cavity comprises a bottom wall, and the variable resistor is arranged on the bottom wall and is positioned between the bottom wall and the substrate;
the variable resistor comprises a variable resistance layer, and a fixed electrode and a movable electrode which are arranged on the variable resistance layer, wherein the fixed electrode is far away from the first gap;
the fixed electrode is electrically connected with the power supply low potential signal input end, the movable electrode is electrically connected with the first light emitting element, and the movable electrode is used for moving when the width of the first gap changes, so that the distance between the movable electrode and the fixed electrode is inversely proportional to the width of the first gap, and the resistance value of the variable resistor is inversely proportional to the width of the first gap.
In one embodiment, the number of the first light emitting elements is plural, the plural first light emitting elements are connected in series, and the plural first light emitting elements after being connected in series are connected to the same variable resistor.
In one embodiment, the resistance of the variable resistor ranges from 0.1 Ω to 2kΩ.
In one embodiment, the first light emitting elements adjacent to one of the two intersecting first slits are plural, and a fourth light emitting element adjacent to the other first slit is included, and the fourth light emitting element is connected to the other first light emitting elements except for the fourth light emitting element among the plural first light emitting elements, and the different brightness adjusting circuits are connected to the fourth light emitting element.
In one embodiment, the accommodating cavity includes a sidewall, a second gap is formed between the sidewall and the adjacent substrate, the plurality of light emitting elements includes a second light emitting element disposed adjacent to the second gap, the second light emitting element is connected with the brightness adjusting circuit, and the brightness adjusting circuit is configured to adjust the brightness of the second light emitting element when the width of the second gap changes, so that the brightness of the second light emitting element is in direct proportion to the width of the second gap.
In one embodiment, the first light emitting element and the second light emitting element are connected to different ones of the luminance adjustment circuits.
In one embodiment, the first light emitting elements adjacent to the first slit are plural, and a third light emitting element adjacent to the second slit is included, and the third light emitting element is connected to the other first light emitting elements except the third light emitting element among the plural first light emitting elements, and the brightness adjusting circuit is different.
The luminous panel of concatenation that this application provided has: compared with the prior art, the brightness adjusting circuit is connected with the first light-emitting element adjacent to the first gap on the substrate, when the width of the first gap changes, the brightness adjusting circuit adjusts the brightness of the first light-emitting element, so that the brightness of the first light-emitting element is in direct proportion to the width of the first gap, when the width of the first gap is enlarged, the light-emitting brightness of the first light-emitting element is enlarged, and therefore dark bands formed by widening the first gap are improved, otherwise, when the width of the first gap is reduced, the light-emitting brightness of the first light-emitting element is reduced, bright spots formed by narrowing the first gap are improved, and the display image quality of the display device is effectively improved.
The embodiment of the application also provides a backlight module, which comprises a spliced light-emitting panel and an optical film, wherein the optical film is arranged on one side of the spliced light-emitting panel in the light-emitting direction, and the spliced light-emitting panel is any one of the spliced light-emitting panels.
The beneficial effect of the backlight unit that this application provided lies in: the above spliced light-emitting panel is adopted, the brightness adjusting circuit is connected with the first light-emitting element adjacent to the first gap on the substrate, when the width of the first gap changes, the brightness adjusting circuit adjusts the brightness of the first light-emitting element, so that the brightness of the first light-emitting element is in direct proportion to the width of the first gap, when the width of the first gap is enlarged, the light-emitting brightness of the first light-emitting element is enlarged, thereby improving the dark band formed by the widening of the first gap, otherwise, when the width of the first gap is reduced, the light-emitting brightness of the first light-emitting element is reduced, thereby improving the bright point formed by the narrowing of the first gap, and further effectively improving the display image quality of the display device.
The embodiment of the application also provides a display device, which comprises a backlight module and a display panel, wherein the display panel is arranged on the light emitting side of the backlight module, and the backlight module is the backlight module in any embodiment.
The beneficial effect of the display device that this application provided lies in: adopt above-mentioned backlight unit, the luminance adjustment circuit is connected with the adjacent first luminescent element in first gap on the base plate of this application, when first gap width changed, luminance adjustment circuit adjusts first luminescent element's luminance, make first luminescent element's luminance and first gap's width directly proportional, like this when first gap width grow, first luminescent element's luminance just grows to improve the dark zone that first gap widened formed, otherwise, when first gap width diminishes, first luminescent element's luminance just diminishes, thereby improve the bright spot that first gap narrows down and forms, and then effectually improved display device's display image quality.
Drawings
Fig. 1 is a top view of a tiled light emitting panel provided in an embodiment of the present application;
FIG. 2 is a block diagram of the assembly of the substrate and the backplate of FIG. 1;
FIG. 3 is a circuit diagram showing the connection between the first light emitting device and the variable resistor of FIG. 1 on both sides of the first slit;
fig. 4 is a schematic structural view of the variable resistor of fig. 2 and 3;
fig. 5 is a circuit diagram showing a connection between the second light emitting element and the variable resistor in fig. 1 on the second slit side;
fig. 6 is a schematic structural diagram of a backlight module according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present application.
Reference numerals: 1. a back plate; 10. a receiving chamber; 11. a bottom wall; 12. a sidewall;
2. a substrate; 3. a light emitting element; 31. a first light emitting element; 32. a second light emitting element; 311. a third light emitting element; 312. a fourth light emitting element;
41. a first slit; 42. a second slit;
5. a variable resistor; 51. a variable resistance layer; 52. fixing the electrode; 53. a movable electrode;
61. a power supply high potential signal input terminal; 62. a power supply low potential signal input terminal;
100. splicing the luminous panels; 200. a display panel; 300. an optical film.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same components or the same parts, and for the same parts in the embodiments of the present application, reference numerals may be given to only one of the parts or the parts in the drawings by way of example, and it should be understood that, for other same parts or parts, the reference numerals are equally applicable.
The embodiment of the application provides a concatenation luminescent panel, backlight unit and display device, has solved the base plate in the current backlight unit and has removed the problem that leads to the base plate seam department to form dark band or bright spot easily, influences the image quality.
Referring to fig. 1 and 2, the spliced light-emitting panel provided in this application embodiment includes backplate 1, backplate 1 includes diapire 11 and lateral wall 12, diapire 11 encloses with lateral wall 12 and holds chamber 10, hold and be equipped with a plurality of base plates 2 that splice together in the chamber 10, all be equipped with a plurality of light-emitting component 3 on every base plate 2, because a plurality of base plates 2 splice together, therefore have first gap 41 between two adjacent base plates 2, when the condition that base plate 2 moved relative backplate 1 appears in the display device in the use, the position of base plate 2 changed, the width of first gap 41 between base plate 2 and the base plate 2 also changed thereupon, just so form dark area or bright spot in first gap 41 department easily, influence the image quality.
In this embodiment, the plurality of light emitting elements 3 includes a first light emitting element 31 disposed adjacent to the first slit 41, and the first light emitting element 31 is connected with a brightness adjusting circuit, and the brightness adjusting circuit is configured to adjust the brightness of the first light emitting element 31 when the width of the first slit 41 changes, so that the brightness of the first light emitting element 31 is proportional to the width of the first slit 41. Thus, when the width of the first slit 41 is increased, the light-emitting brightness of the first light-emitting element 31 is increased, so as to improve the dark band formed by widening the first slit 41, whereas when the width of the first slit 41 is decreased, the light-emitting brightness of the first light-emitting element 31 is decreased, so as to improve the bright point formed by narrowing the first slit 41, and further effectively improve the display image quality of the display device.
In some embodiments, the substrate 2 is square, the light emitting element 3 may be a MiniLED bead, or a micro LED bead, and a plurality of LED lamps disposed on the substrate 2 are arranged in an array, so that only one column or one row of LED lamps adjacent to the first slit 41 is connected to the brightness adjusting circuit, and each LED lamp in the one column or one row is connected to the brightness adjusting circuit, so that brightness at the first slit 41 can be ensured to be consistent with brightness at the center of the substrate 2, brightness at each place on the whole back plate 1 is kept consistent, and display effect of the display device is improved.
Referring to fig. 1, in the embodiment of the present application, four substrates 2 that are spliced together are disposed in the accommodating cavity 10, and a first slit 41 formed by the four substrates 2 is in a cross shape, which is described herein by taking the splicing of the four substrates 2 as an example.
In some embodiments, referring to fig. 3, the light emitting element 3 is configured to electrically connect the power high potential signal input terminal 61 and the power low potential signal input terminal 62 to emit light under the control of the power high potential signal and the power low potential signal; the plurality of light emitting elements 3 on each substrate 2 are electrically connected with the power high potential signal input end 61 and the power low potential signal input end 62, so that the plurality of light emitting elements 3 can be controlled to emit light under the same voltage, the connection difficulty of the plurality of light emitting elements 3 in a circuit is reduced, meanwhile, the light emitting brightness of the plurality of light emitting elements 3 which are only electrically connected with the power high potential signal input end 61 and the power low potential signal input end 62 can be kept the same, the light emitting brightness of the positions of the backboard 1 is kept uniform, and the display image quality is improved.
Referring to fig. 3, the brightness adjusting circuit includes a variable resistor 5, the variable resistor 5 being connected between the first light emitting element 31 and the power low potential signal input terminal 62, the variable resistor 5 being configured to inversely proportion a resistance value of the variable resistor 5 to a width of the first slit 41 when the width of the first slit 41 is changed, so that a value of a current flowing through the first light emitting element 31 is proportional to the width of the first slit 41.
Through the above arrangement, the resistance value of the variable resistor 5 is adjusted to adjust the current value flowing through the first light emitting element 31, and the current value flowing through the first light emitting element 31 is proportional to the width of the first slit 41, and the larger the current value flowing through the first light emitting element 31 is, the larger the brightness of the first light emitting element 31 is, so that the brightness of the first light emitting element 31 is proportional to the width of the first slit 41, further effectively improving the dark band or bright spot formed at the first slit 41, and improving the display image quality of the display device.
It should be noted that, the variable resistor 5 (Rheostat), also called an adjustable resistor, is a type of resistor, and the resistance value of the adjustable resistor can be manually adjusted to meet the requirement of the circuit. The adjustable resistors are divided into: an electronic component adjustable resistor, a porcelain disc adjustable resistor, a patch adjustable resistor, a wire winding adjustable resistor and the like.
In this embodiment, the resistance value of the variable resistor 5 is adjusted to adjust the current value flowing through the first light emitting element 31, so that the brightness of the first light emitting element 31 is in direct proportion to the width of the first slit 41, so that the resistance value variation range of the variable resistor 5 is required to correspond to the width variation range of the first slit 41, so that the width of the first slit 41 can be inversely proportional to the resistance value of the variable resistor 5, and the resistance value range of the variable resistor 5 in this embodiment is 0.1 Ω -2kΩ, so that when the width of the first slit 41 reaches the maximum or minimum, the resistance value of the variable resistor 5 can be inversely proportional to the width of the first slit 41, so that the brightness of the first light emitting element 31 can be directly proportional to the width of the first slit 41.
In some embodiments, referring to fig. 2, the variable resistor 5 may be a patch type variable resistor, and the variable resistor 5 is disposed on the bottom wall 11 and between the bottom wall 11 and the substrate 2, so that not only can the space occupied by the variable resistor 5 be reduced and the volume of the backlight module be avoided from increasing, but also the installation of the variable resistor 5 is simpler and more convenient, the installation of the variable resistor 5 is more stable, and the resistance value of the variable resistor 5 is more accurately changed when the substrate 2 moves relative to the bottom wall 11.
Referring to fig. 3 and 4, the variable resistor 5 includes a variable resistor layer 51, and a fixed electrode 52 and a movable electrode 53 provided on the variable resistor layer 51, the fixed electrode 52 being distant from the first slit 41; the fixed electrode 52 is electrically connected to the power supply low potential signal input terminal 62, the movable electrode 53 is electrically connected to the first light emitting element 31, and the movable electrode 53 is configured to move when the width of the first slit 41 is changed, so that the distance between the movable electrode 53 and the fixed electrode 52 is inversely proportional to the width of the first slit 41, and so that the resistance value of the variable resistor 5 is inversely proportional to the width of the first slit 41. Thus, when the width of the first slit 41 is changed, the resistance value of the variable resistor 5 is inversely proportional to the width of the first slit 41, so that the brightness of the first light emitting element 31 is directly proportional to the width of the first slit 41, when the width of the first slit 41 is increased, the brightness of the first light emitting element 31 adjacent to the first slit 41 is increased, so as to improve the dark band problem at the first slit 41, when the width of the first slit 41 is decreased, the brightness of the first light emitting element 31 adjacent to the first slit 41 is decreased, so as to improve the bright point problem at the first slit 41, and further improve the display effect of the display device.
For example, the substrate 2 in fig. 2 is taken as an example, the moving direction of the movable electrode 53 of the variable resistor 5 in fig. 3 corresponds to the moving direction of the substrate 2 in fig. 2, the fixed electrode 52 of the variable resistor 5 between the substrate 2 on the left side in fig. 2 and the bottom wall 11 is located on the left side of the variable resistor 5, and the fixed electrode 52 of the variable resistor 5 between the substrate 2 on the right side in fig. 2 and the bottom wall 11 is located on the right side of the variable resistor 5. When the left substrate 2 moves rightward and the right substrate 2 is not moved in fig. 2, the width of the first gap 41 between the two substrates 2 is reduced, and at this time, referring to fig. 3, the movable electrode 53 of the variable resistor 5 below the left substrate 2 also moves rightward, so that the distance between the movable electrode 53 and the fixed electrode 52 is increased, the resistance value of the variable resistor 5 below the left substrate 2 is increased, the current value flowing through the first light emitting element 31 adjacent to the first gap 41 on the left substrate 2 is reduced, the brightness of the first light emitting element 31 is reduced, the brightness at the first gap 41 and the brightness at other positions of the substrate 2 can be kept consistent, the bright point problem caused by the reduced width of the first gap 41 is effectively improved, and the display image quality of the display device is improved.
When the left substrate 2 moves leftwards in fig. 2 and the right substrate 2 does not move, the width of the first gap 41 between the two substrates 2 becomes larger, at this time, referring to fig. 3, the movable electrode 53 of the variable resistor 5 below the left substrate 2 also moves leftwards, so that the distance between the movable electrode 53 and the fixed electrode 52 becomes smaller, the resistance value of the variable resistor 5 below the left substrate 2 becomes smaller, the current value flowing on the first light emitting element 31 adjacent to the first gap 41 on the left substrate 2 becomes larger, the brightness of the first light emitting element 31 becomes larger, the brightness at the first gap 41 can be kept consistent with the brightness at other positions of the substrate 2, the dark band problem caused by the enlarged width of the first gap 41 is effectively improved, and the display image quality of the display device is improved.
When the left substrate 2 is not moved and the right substrate 2 is moved leftwards in fig. 2, the width of the first gap 41 between the two substrates 2 is reduced, at this time, referring to fig. 3, the movable electrode 53 of the variable resistor 5 below the right substrate 2 is also moved leftwards, so that the distance between the movable electrode 53 and the fixed electrode 52 is increased, the resistance value of the variable resistor 5 below the right substrate 2 is increased, the current value flowing through the first light emitting element 31 adjacent to the first gap 41 on the right substrate 2 is reduced, the brightness of the first light emitting element 31 is reduced, the brightness at the first gap 41 and the brightness at other positions of the substrate 2 can be kept consistent, the bright point problem caused by the reduced width of the first gap 41 is effectively improved, and the display image quality of the display device is improved.
When the left substrate 2 is not moved and the right substrate 2 moves rightward in fig. 2, the width of the first gap 41 between the two substrates 2 is increased, and at this time, referring to fig. 3, the movable electrode 53 of the variable resistor 5 below the right substrate 2 also moves rightward, so that the distance between the movable electrode 53 and the fixed electrode 52 is reduced, the resistance value of the variable resistor 5 below the right substrate 2 is reduced, the current value flowing through the first light emitting element 31 adjacent to the first gap 41 on the right substrate 2 is increased, the brightness of the first light emitting element 31 is increased, the brightness at the first gap 41 and the brightness at other positions of the substrate 2 can be kept consistent, the dark band problem caused by the increased width of the first gap 41 is effectively improved, and the display image quality of the display device is improved.
When both the left substrate 2 and the right substrate 2 move rightward in fig. 2, the width of the first gap 41 between the two substrates 2 is unchanged, at this time, referring to fig. 3, the movable electrodes 53 of the variable resistors 5 under the left substrate 2 and the right substrate 2 move rightward, so that the distance between the movable electrodes 53 under the left substrate 2 and the fixed electrodes 52 becomes larger, the distance between the movable electrodes 53 under the right substrate 2 and the fixed electrodes 52 becomes smaller, the resistance of the variable resistors 5 under the left substrate 2 becomes larger, the resistance of the variable resistors 5 under the right substrate 2 becomes smaller, the brightness of the first light emitting elements 31 adjacent to the first gap 41 on the left substrate 2 becomes smaller, and the brightness of the first light emitting elements 31 adjacent to the first gap 41 on the right substrate 2 becomes larger, so that the brightness of the first gap 41 can be kept consistent with the brightness of the other positions of the substrate 2, and the effective width of the first gap 41 is improved, and the display device has a large problem. Of course, when both the left substrate 2 and the right substrate 2 move leftwards in fig. 2, the resistance values of the varistors 5 under the left substrate 2 and the right substrate 2 also tend to cancel each other, so that the brightness at the first slit 41 can be kept consistent with the brightness at other positions of the substrate 2, and the display image quality of the display device is improved.
In some embodiments, the first light emitting element 31 adjacent to one first slit 41 of the two intersecting first slits 41 has a plurality of first light emitting elements 31, and includes a fourth light emitting element 312 adjacent to the other first slit 41, and the fourth light emitting element 312 is connected to the other first light emitting elements 31 except the fourth light emitting element 312 among the plurality of first light emitting elements 31 with different brightness adjusting circuits. Thus, the brightness of the fourth light-emitting element 312 can be adjusted independently, and since the fourth light-emitting element 312 is located at the intersection point of the two intersecting first slits 41, the brightness of any one of the two intersecting first slits 41 can be adjusted by adjusting the brightness of the fourth light-emitting element 312, so that no matter how the substrate 2 moves, the dark bands or bright spots occurring at the two intersecting first slits 41 can be improved, and the display image quality of the display device can be improved.
For example, in the case of the upper left substrate 2 in fig. 1, the right side and the lower side of the substrate 2 are respectively provided with the first slits 41, the first light emitting element 31 adjacent to the first slits 41 on the right side is plural, the first light emitting element 31 at the lowest end of the first light emitting elements 31 is simultaneously adjacent to the first slits 41 on the lower side of the substrate 2, the first light emitting element 31 is the fourth light emitting element 312, the brightness adjusting circuit of the fourth light emitting element 312 connected with the other first light emitting elements 31 in the first light emitting elements 31 is different, the first light emitting element 31 adjacent to the first slits 41 on the lower side of the substrate 2 is plural, the first light emitting element 31 adjacent to the first slits 41 on the right side of the first light emitting element 31 is simultaneously adjacent to the first slits 41 on the right side of the substrate 2, the first light emitting element 31 is the fourth light emitting element 312, that is simultaneously adjacent to the first slits 41 on the right side and the lower side of the substrate 2, in this embodiment, the brightness of the fourth light emitting element 312 can be adjusted by the same brightness adjusting circuit width of the first light emitting element 31 on the right side of the substrate 2, and the brightness of the first slits 41 can be adjusted when the brightness of the first light emitting element 31 is changed.
Referring to fig. 1, fig. 1 is only a schematic view of a spliced light-emitting panel of the present application, and in actual production, a large-sized display device generally requires a plurality of substrates 2 to be spliced, so fig. 1 is only a schematic view of a simple splice state. Taking fig. 1 as an example, the boundary between the four substrates 2 is the most susceptible to the movement of the substrates 2, and the display effect or the light emitting effect is the most susceptible to the movement of the substrates 2. When the four substrates 2 are simultaneously moved toward the side walls 12 of the accommodating chamber 10 (i.e., all are moved outward), the gaps at the junctions of the four substrates 2 become wider, and dark spots are likely to occur at the junctions. When the four substrates 2 are simultaneously moved in a direction away from the side wall 12 of the accommodating chamber 10 (i.e., all are inward), the gaps at the junctions of the four substrates 2 become narrow, and bright spots easily appear at the junctions.
When the substrates 2 are spliced, the moving direction of each substrate 2 is unknown, so that the widths of the junctions are different easily, dark spots appear at the junctions, bright spots appear at the junctions, and the display quality of the display device is affected by the appearance of the bright spots or the dark spots. Therefore, by adopting the spliced light-emitting panel of the embodiment of the application, the brightness of the first light-emitting element 31 on the substrate 2 can be adjusted aiming at the gap at each junction, when the gap at the junction is widened to generate a dark spot, the brightness of the first light-emitting element 31 adjacent to the gap at the junction is increased, when the gap at the junction is narrowed to generate a bright spot, the brightness of the first light-emitting element 31 adjacent to the gap at the junction is weakened, so that the substrate 2 moves in any direction, the brightness of a plurality of junctions formed by splicing a plurality of substrates 2 can be well adjusted to improve the dark spot or the bright spot, and the brightness at the junction is consistent with the brightness in the middle of the substrate 2, thereby improving the display quality of the display device.
Of course, the fourth light-emitting element 312 may be connected to a different brightness adjusting circuit with the first light-emitting element 31, so that the brightness of the fourth light-emitting element 312 is adjusted no matter the width of the first slit 41 on the right side of the substrate 2 is changed or the width of the first slit 41 on the lower side of the substrate 2 is changed, thereby ensuring that the dark band or bright spot appearing at the first slit 41 is improved, and being beneficial to improving the overall display image quality of the display device.
In some embodiments, the number of the first light emitting elements 31 is plural, the plural first light emitting elements 31 are connected in series, and the plural first light emitting elements 31 after being connected in series are connected to the same variable resistor 5. This can reduce the number of the variable resistors 5 used, and not only can improve the efficiency of mounting the variable resistors 5, but also can reduce the cost.
It should be noted that, because the substrate 2 in the embodiment of the present application is square, and the first light emitting elements 31 are MiniLED beads or micro led beads, so that the adjacent first light emitting elements 31 of the first slit 41 are plural, the plural first light emitting elements 31 may be connected in series when connected, and then the power high potential signal input end 61 and the power low potential signal input end 62 are connected, so as to emit light under the control of the power high potential signal and the power low potential signal, and the purpose of controlling the brightness of the plural first light emitting elements 31 at the same time can be achieved by connecting one variable resistor 5 in series on the series circuit, which greatly improves the efficiency of controlling the brightness of the plural first light emitting elements 31 at the same time.
Referring to fig. 1 and 2, in some embodiments, a second gap 42 is formed between the sidewall 12 and the adjacent substrate 2, the plurality of light emitting elements 3 includes a second light emitting element 32 disposed adjacent to the second gap 42, and the second light emitting element 32 is connected to a brightness adjusting circuit for adjusting the brightness of the second light emitting element 32 when the width of the second gap 42 is changed, so that the brightness of the second light emitting element 32 is proportional to the width of the second gap 42. Therefore, when the width of the second slit 42 is changed, the brightness of the second light emitting element 32 adjacent to the second slit 42 can be correspondingly adjusted, so that the brightness of the second slit 42 can be consistent with the brightness of the center of the substrate 2, and the display image quality can be effectively improved.
In some embodiments, the brightness adjusting circuits connected to the second light emitting elements 32 are the same as the brightness adjusting circuits connected to the first light emitting elements 31, and each include a variable resistor 5, that is, the variable resistor 5 connected to the second light emitting elements 32 is also disposed between the bottom wall 11 and the substrate 2, for example, the substrate 2 in the upper left corner in fig. 1, the moving direction of the movable electrode 53 of the variable resistor 5 in fig. 5 corresponds to the moving direction of the substrate 2 in the upper left corner in fig. 1, when the substrate 2 in the upper left corner in fig. 1 moves rightward, the width of the second gap 42 on the left side of the substrate 2 is increased, at this time, referring to fig. 5, the movable electrode 53 of the variable resistor 5 below the substrate 2 also moves rightward, so that the distance between the movable electrode 53 and the fixed electrode 52 is decreased, the resistance value of the variable resistor 5 below the substrate 2 is decreased, the current value flowing through the second light emitting element 32 adjacent to the second gap 42 on the substrate 2 is increased, when the substrate 32 in the upper left corner in fig. 1 moves rightward, the width of the second gap 42 is increased, and the other brightness of the second gap 42 can be increased, and the brightness of the other brightness can be improved.
It should be noted that, in the embodiment of the present application, the four sides of the substrate 2 have slits, and the upper left substrate 2 in fig. 1 is taken as an example, when the upper left substrate 2 in fig. 1 moves along the first direction X relative to the bottom wall 11, the widths of the second slit 42 on the left side of the substrate 2 and the first slit 41 on the right side of the substrate 2 are both changed; when the upper left-hand base plate 2 in fig. 1 is moved in the second direction Y relative to the bottom wall 11, the width of both the second slit 42 on the upper side of the base plate 2 and the first slit 41 on the lower side of the base plate 2 will change; when the upper left-hand substrate 2 moves obliquely with respect to the bottom wall 11 in fig. 1, the widths of the second slits 42 on the upper and left sides of the substrate 2 and the first slits 41 on the lower and right sides of the substrate 2 change, which corresponds to the movement of the substrate 2 with respect to the bottom wall 11 in both the first direction X and the second direction Y. At this time, the brightness of the first light emitting element 31 adjacent to the first slit 41 and the brightness of the second light emitting element 32 adjacent to the second slit 42 on the substrate 2 are adjusted by the brightness adjusting circuit, so that the brightness at the first slit 41 and the brightness at the second slit 42 can be consistent with the brightness at the center of the substrate 2, that is, the substrate 2 can move in any direction relative to the bottom wall 11, so that the display brightness of the whole backlight module can be kept uniform, and the display image quality is effectively improved.
In some embodiments, the first light emitting element 31 and the second light emitting element 32 are connected to different brightness adjusting circuits. Since the first light emitting element 31 is adjacent to the first slit 41 and the second light emitting element 32 is adjacent to the second slit 42, when the substrate 2 moves relative to the bottom wall 11, the width changes of the first slit 41 and the second slit 42 on both sides of the substrate 2 in the first direction X are opposite, and the width changes of the first slit 41 and the second slit 42 on both sides of the substrate 2 in the second direction Y are opposite, so that the brightness changes of the light emitting elements 3 on both sides of the substrate 2 in the first direction X and on both sides of the second direction Y are opposite, so that connecting the first light emitting element 31 and the second light emitting element 32 to different brightness adjusting circuits is beneficial to independently adjusting the brightness of the first light emitting element 31 and the second light emitting element 32, so that the brightness at the first slit 41 and the second slit 42 is kept consistent with the brightness at the center position of the substrate 2, thereby improving the display quality.
It should be noted that, in order to better adjust the brightness of the light emitting elements 3 around the substrate 2, four varistors 5 may be disposed below the substrate 2, where the four varistors 5 are respectively connected to the light emitting elements 3 adjacent to the slits on four sides of the substrate 2, so that the substrate 2 moves in any direction, and the brightness of the light emitting elements 3 adjacent to the first slit 41 and the second slit 42 with varying widths can be individually adjusted, so that the brightness at the first slit 41 and the brightness at the second slit 42 can be individually adjusted, thereby keeping the brightness of each place on the whole back plate 1 consistent, and being beneficial to improving the display quality.
Referring to fig. 1, in some embodiments, the first light emitting elements 31 adjacent to the first slit 41 have a plurality of first light emitting elements, including a third light emitting element 311 adjacent to the second slit 42, and the third light emitting element 311 is connected to different brightness adjusting circuits of other first light emitting elements 31 except the third light emitting element 311 among the plurality of first light emitting elements 31. Therefore, the brightness of the third light emitting element 311 can be adjusted independently, and the effect of the dark band or the bright spot at the second gap 42 on the display image quality is greater than that of the dark band or the bright spot at the first gap 41, so that the brightness of the second gap 42 can be adjusted by adjusting the brightness of the third light emitting element 311, and when the widths of the first gap 41 and the second gap 42 are changed, the brightness of the second gap 42 can be adjusted preferentially, thereby being more beneficial to improving the display image quality of the display device.
For example, the upper left corner of the substrate 2 in fig. 1 is taken as an example, the right side of the substrate 2 is provided with a first gap 41, a plurality of first light emitting elements 31 adjacent to the first gap 41 are provided, one first light emitting element 31 at the uppermost end of the plurality of first light emitting elements 31 is simultaneously adjacent to a second gap 42 at the upper side of the substrate 2, the first light emitting element 31 is also a third light emitting element 311, the third light emitting element 311 is different from brightness adjusting circuits connected with other first light emitting elements 31 in the plurality of first light emitting elements 31, the upper side of the substrate 2 is provided with a second gap 42, the second light emitting element 32 adjacent to the second gap 42 is provided with a plurality of second light emitting elements 32 adjacent to the first gap 41 at the rightmost end of the plurality of second light emitting elements 32, and the second light emitting element 32 is also adjacent to the first gap 41 at the right side of the substrate 2, that is also the third light emitting element 311, that is, in this embodiment, the third light emitting element 311 is simultaneously adjacent to the first gap 41 and the second gap 42, and the third light emitting element 311 is connected with the second light emitting element 31 is used for improving the width of the second gap 42 when the second light emitting element is connected with the second light emitting element 31, or improving the second gap 42, or improving the brightness of the first gap 42 and the second gap 42 when the whole brightness adjusting device is changed.
In some embodiments, the third light emitting element 311 may also be connected to the same brightness adjusting circuit as the first light emitting element 31, so that the brightness of the third light emitting element 311 and the brightness of the first light emitting element 31 can be simultaneously adjusted to control the brightness at the first slit 41, thereby improving the dark band or bright spot appearing at the first slit 41 and improving the display image quality of the display device.
In some embodiments, the third light emitting element 311 is connected to the variable resistor 5, and the third light emitting element 311 is electrically connected to the high power signal input terminal 61, the variable resistor 5 is electrically connected to the low power signal input terminal 62, and the third light emitting element 311 may be connected to the same variable resistor 5 as the second light emitting element 32 or may be connected to the same variable resistor 5 as the first light emitting element 31. Of course, the third light emitting element 311 may be divided into two parts, wherein a part adjacent to the first light emitting element 31 and the first light emitting element 31 are connected to the same variable resistor 5, and a part adjacent to the second light emitting element 32 and the second light emitting element 32 are connected to the same variable resistor 5, so that the third light emitting element 311 can compensate for the brightness at the first slit 41 and the second slit 42 regardless of the up-down movement or the left-right movement of the substrate 2, thereby contributing to the improvement of the display image quality of the display device.
Referring to fig. 6, the embodiment of the present application provides a backlight module, including a spliced light-emitting panel 100 and an optical film 300, where the optical film 300 is disposed on one side of the spliced light-emitting panel 100 in the light-emitting direction, and the spliced light-emitting panel 100 is the spliced light-emitting panel 100 in any of the embodiments.
The detailed structure of the spliced light-emitting panel 100 can refer to the above embodiments, and will not be described herein again; it can be understood that, because the spliced light-emitting panel 100 is used in the backlight module of the present application, the embodiments of the backlight module of the present application include all the technical solutions of all the embodiments of the spliced light-emitting panel 100, and can achieve the technical effects achieved by the technical solutions.
Referring to fig. 7, an embodiment of a display device is provided, including a backlight module and a display panel 200, where the display panel 200 is disposed on a light emitting side of the backlight module, and the backlight module is the backlight module in any of the embodiments.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The spliced light-emitting panel comprises a back plate (1) with a containing cavity (10), wherein a plurality of spliced substrates (2) are arranged in the containing cavity (10), a first gap (41) is arranged between two adjacent substrates (2), a plurality of light-emitting elements (3) are arranged on each substrate (2),
the plurality of light emitting elements (3) comprise first light emitting elements (31) arranged adjacent to the first gap (41), wherein the first light emitting elements (31) are connected with a brightness adjusting circuit, and the brightness adjusting circuit is used for adjusting the brightness of the first light emitting elements (31) when the width of the first gap (41) changes, so that the brightness of the first light emitting elements (31) is in direct proportion to the width of the first gap (41).
2. The tiled lighting panel of claim 1, wherein,
the light-emitting element (3) is used for electrically connecting a power supply high-potential signal input end (61) and a power supply low-potential signal input end (62) so as to emit light under the control of the power supply high-potential signal and the power supply low-potential signal;
the brightness adjusting circuit comprises a variable resistor (5), wherein the variable resistor (5) is connected between the first light emitting element (31) and the power supply low potential signal input end (62), and the variable resistor (5) is used for enabling the resistance value of the variable resistor (5) to be inversely proportional to the width of the first gap (41) when the width of the first gap (41) is changed, so that the current value flowing through the first light emitting element (31) is directly proportional to the width of the first gap (41).
3. The tiled lighting panel of claim 2, wherein,
the accommodating cavity (10) comprises a bottom wall (11), and the variable resistor (5) is arranged on the bottom wall (11) and is positioned between the bottom wall (11) and the substrate (2);
the variable resistor (5) comprises a variable resistor layer (51), and a fixed electrode (52) and a movable electrode (53) which are arranged on the variable resistor layer (51), wherein the fixed electrode (52) is far away from the first gap (41);
the fixed electrode (52) is electrically connected with the power supply low potential signal input end (62), the movable electrode (53) is electrically connected with the first light emitting element (31), the movable electrode (53) is used for moving when the width of the first gap (41) changes, the distance between the movable electrode (53) and the fixed electrode (52) is inversely proportional to the width of the first gap (41), and the resistance value of the variable resistor (5) is inversely proportional to the width of the first gap (41).
4. A spliced light-emitting panel according to claim 2 or 3,
the number of the first light emitting elements (31) is a plurality, the plurality of the first light emitting elements (31) are connected in series, and the plurality of the first light emitting elements (31) after being connected in series are connected with the same variable resistor (5);
and/or the resistance value of the variable resistor (5) is in the range of 0.1 omega-2 KΩ.
5. A spliced light-emitting panel according to any one of claim 1 to 3,
the first light emitting elements (31) adjacent to one (41) of the two intersecting first slits (41) are plural, wherein a fourth light emitting element (312) adjacent to the other first slit (41) is included, and the fourth light emitting element (312) is connected with the other first light emitting elements (31) except for the fourth light emitting element (312) among the plural first light emitting elements (31) to be different in the brightness adjusting circuit.
6. A spliced light-emitting panel according to any one of claim 1 to 3,
the accommodating cavity (10) comprises a side wall (12), a second gap (42) is formed between the side wall (12) and the adjacent substrate (2), a plurality of light emitting elements (3) comprise second light emitting elements (32) which are arranged adjacent to the second gap (42), the second light emitting elements (32) are connected with a brightness adjusting circuit, and the brightness adjusting circuit is used for adjusting the brightness of the second light emitting elements (32) when the width of the second gap (42) changes, so that the brightness of the second light emitting elements (32) is in direct proportion to the width of the second gap (42).
7. The tiled lighting panel of claim 6, wherein,
the first light emitting element (31) and the second light emitting element (32) are connected to different ones of the luminance adjustment circuits.
8. The tiled lighting panel of claim 6, wherein,
the first light emitting elements (31) adjacent to the first slit (41) are multiple, wherein a third light emitting element (311) adjacent to the second slit (42) is included, and the third light emitting element (311) is connected with other first light emitting elements (31) except for the third light emitting element (311) in the multiple first light emitting elements (31) to be different in brightness adjusting circuit.
9. A backlight module comprising a spliced light-emitting panel (100) and an optical film (300), wherein the optical film (300) is arranged on one side of the spliced light-emitting panel (100) in the light-emitting direction, and the spliced light-emitting panel (100) is the spliced light-emitting panel (100) according to any one of claims 1 to 8.
10. A display device comprising a backlight module and a display panel (200), wherein the display panel (200) is disposed on a light emitting side of the backlight module, and the backlight module is the backlight module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211475536.XA CN116107115A (en) | 2022-11-23 | 2022-11-23 | Spliced light-emitting panel, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211475536.XA CN116107115A (en) | 2022-11-23 | 2022-11-23 | Spliced light-emitting panel, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116107115A true CN116107115A (en) | 2023-05-12 |
Family
ID=86256941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211475536.XA Pending CN116107115A (en) | 2022-11-23 | 2022-11-23 | Spliced light-emitting panel, backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116107115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116991003A (en) * | 2023-09-27 | 2023-11-03 | 惠科股份有限公司 | Light-emitting substrate, backlight module and display device |
-
2022
- 2022-11-23 CN CN202211475536.XA patent/CN116107115A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116991003A (en) * | 2023-09-27 | 2023-11-03 | 惠科股份有限公司 | Light-emitting substrate, backlight module and display device |
| CN116991003B (en) * | 2023-09-27 | 2023-12-22 | 惠科股份有限公司 | Light-emitting substrate, backlight module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111999936B (en) | Backlight module and display device | |
| US7350937B2 (en) | Lighting unit, lighting module, and liquid crystal display | |
| US8714764B2 (en) | Light emitting module, light emitting module unit, and backlight system | |
| JP4182930B2 (en) | Display device and backlight device | |
| US9805629B2 (en) | Transparent electronic display board capable of uniform optical output | |
| KR101204861B1 (en) | Backlight unit and liquid crystal display comprising the same | |
| KR101442006B1 (en) | Back light assembly and display apparatus having the back light assembly | |
| KR100493386B1 (en) | Back light unit | |
| US7868972B2 (en) | Light source unit, liquid crystal display having the same, and method thereof | |
| JP4789908B2 (en) | Backlight unit for liquid crystal display device and liquid crystal display module | |
| EP2309825A1 (en) | Backlight and display device using the same | |
| CN116107115A (en) | Spliced light-emitting panel, backlight module and display device | |
| US8093827B2 (en) | Light source module, light source assembly having the same and display device having the light source module | |
| KR20080020217A (en) | Liquid crystal display | |
| JP2009087537A (en) | Light source unit, lighting device using it, and display device using it | |
| KR20060108226A (en) | Apparatus and method for driving backlight | |
| KR20070016355A (en) | Flat fluorescent lamp and a display device provided with the same | |
| US20080024049A1 (en) | Plasma tube array | |
| CN220357417U (en) | Projection light source assembly and projector | |
| JP3959051B2 (en) | Backlight device and liquid crystal display device | |
| CN113270055B (en) | Display panel and testing device | |
| US20240036382A1 (en) | Led display panel and display device | |
| JP2018181809A (en) | Lighting device, display device and television receiver device | |
| KR20080071411A (en) | Current balancing circuit for driving led backlight light source | |
| CN117153812A (en) | Bonding pad structure, LED lamp bead, display module and packaging method |
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 |