CN110853586A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN110853586A CN110853586A CN201911233452.3A CN201911233452A CN110853586A CN 110853586 A CN110853586 A CN 110853586A CN 201911233452 A CN201911233452 A CN 201911233452A CN 110853586 A CN110853586 A CN 110853586A
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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
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
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- Liquid Crystal Display Device Control (AREA)
- Planar Illumination Modules (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a backlight module and a display device. The backlight module comprises: a first image display area and an indicator light display area; the LED lamp also comprises a plurality of light-emitting elements arranged in an array; the plurality of light emitting elements include a plurality of first light emitting elements located in the first image display area and a plurality of second light emitting elements located in the indicator display area; the plurality of first light-emitting elements and the plurality of second light-emitting elements are electrically connected with the driving chip; the driving chip is used for controlling the plurality of second light-emitting elements to be lightened so as to display the indicator lamp; the driving chip is further used for controlling the plurality of first light-emitting elements to be lightened so as to provide a backlight source for image display of the display panel. The backlight module provided by the embodiment of the invention is beneficial to the overall screen design of the display device and can reduce the power consumption.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a backlight module and a display device.
Background
With the continuous development of science and technology, more and more electronic devices with display functions are widely applied to daily life and work of people, bring great convenience to daily life and work of people, and become an indispensable important tool for people at present.
In a display device in the prior art, for example, in a mobile phone, in order to prompt an incoming call or information, an externally-hung indicator lamp is disposed outside a display panel, and a user is prompted through a light-emitting state of the indicator lamp.
Disclosure of Invention
The invention provides a backlight module and a display device, which are beneficial to the overall screen design of the display device and can reduce the power consumption.
In a first aspect, an embodiment of the present invention provides a backlight module, where the backlight module includes: a first image display area and an indicator light display area;
the LED lamp also comprises a plurality of light-emitting elements arranged in an array;
the plurality of light-emitting elements include a plurality of first light-emitting elements located in the first image display area and a plurality of second light-emitting elements located in the indicator display area;
the first light-emitting elements and the second light-emitting elements are electrically connected with a driving chip; the driving chip is used for controlling the plurality of second light-emitting elements to be lightened so as to display the indicator lamp; the driving chip is further used for controlling the plurality of first light-emitting elements to be lightened so as to provide a backlight source for image display of the display panel.
In a second aspect, an embodiment of the present invention further provides a display device, where the display device includes: a display panel and the backlight module of the first aspect.
The backlight module provided by the embodiment of the invention comprises: a first image display area and an indicator light display area; the LED lamp also comprises a plurality of light-emitting elements arranged in an array; the plurality of light emitting elements include a plurality of first light emitting elements located in the first image display area and a plurality of second light emitting elements located in the indicator display area; the plurality of first light-emitting elements and the plurality of second light-emitting elements are electrically connected with the driving chip. The backlight module has the advantages that a part of light-emitting elements in the backlight module, namely the first light-emitting elements, are used for providing a backlight source for image display of the display panel, and a part of light-emitting elements, namely the second light-emitting elements, are used for displaying the indicator lamps, so that the indicator lamps do not need to be independently arranged, and the frame area for placing the indicator lamps is favorable for the overall screen design of the display device; meanwhile, the driving chip can respectively control the plurality of second light-emitting elements to be lightened to display the indicator light, and control the plurality of first light-emitting elements to be lightened to provide a backlight source for the image display of the display panel, namely when the indicator light is required to display, only the plurality of second light-emitting elements in the indicator light display area are lightened, and the plurality of first light-emitting elements in the first image display area are not lightened, so that the power consumption is reduced.
Drawings
FIG. 1 is a schematic diagram of a display device according to the prior art;
fig. 2 is a schematic structural diagram of a backlight module according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of another backlight module according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another backlight module according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another backlight module according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another backlight module according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of another backlight module according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.
FIG. 1 is a schematic structural diagram of a display device in the prior art, and as shown in FIG. 1, the display device in the prior art includes a display area AA，And a frame area BB，Frame area BB，Is provided with an indicator light 10，And driving the indicator lamp 10，Independent circuits for display, since for setting the indicator light 10，And driving the indicator lamp 10，Frame area BB of displayed independent circuit，The existence of (2) is not beneficial to the overall screen design of the display device.
Based on the above technical problem, an embodiment of the present invention provides a backlight module, including: a first image display area and an indicator light display area; the LED lamp also comprises a plurality of light-emitting elements arranged in an array; the plurality of light emitting elements include a plurality of first light emitting elements located in the first image display area and a plurality of second light emitting elements located in the indicator display area; the plurality of first light-emitting elements and the plurality of second light-emitting elements are electrically connected with the driving chip; the driving chip is used for controlling the plurality of second light-emitting elements to be lightened so as to display the indicator lamp; the driving chip is further used for controlling the plurality of first light-emitting elements to be lightened so as to provide a backlight source for image display of the display panel. By adopting the technical scheme, the backlight module has the advantages that a part of the light-emitting elements in the backlight module, namely the first light-emitting elements, are used for providing a backlight source for image display of the display panel, and a part of the light-emitting elements, namely the second light-emitting elements, are used for indicating lamp display, so that the indicating lamps do not need to be independently arranged, and the frame area for placing the indicating lamps is favorable for the overall screen design of the display device; meanwhile, the driving chip can respectively control the plurality of second light-emitting elements to be lightened to display the indicator light, and control the plurality of first light-emitting elements to be lightened to provide a backlight source for the image display of the display panel, namely when the indicator light is required to display, only the plurality of second light-emitting elements in the indicator light display area are lightened, and the plurality of first light-emitting elements in the first image display area are not lightened, so that the power consumption is reduced.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 2 is a schematic structural diagram of a backlight module according to an embodiment of the present invention, and as shown in fig. 2, the backlight module 100 according to the embodiment of the present invention includes: a first image display area AA and an indicator light display area BB; further comprising a plurality of light emitting elements 10 arranged in an array; the plurality of light emitting elements 10 include a plurality of first light emitting elements 11 located in the first image display area AA and a plurality of second light emitting elements 12 located in the indicator display area BB; the plurality of first light emitting elements 11 and the plurality of second light emitting elements 12 are electrically connected to the driving chip 20; the driving chip 20 is used for controlling the plurality of second light-emitting elements 12 to be lighted to perform indicator light display; the driving chip 20 is also used to control the plurality of first light emitting element lights 11 to provide a backlight for image display of the display panel.
In the embodiment of the invention, a part of the light emitting elements 10 in the backlight module 100, namely the first light emitting elements 11, are used for providing a backlight source for image display of the display panel, and a part of the light emitting elements 10, namely the second light emitting elements 12, are used for indicating lamp display, so that an indicating lamp does not need to be independently arranged and a frame area for placing the indicating lamp is not needed, thereby being beneficial to the overall screen design of the display device; meanwhile, the driving chip 20 can respectively control the plurality of second light-emitting elements 12 to be turned on to perform indicator light display, and control the plurality of first light-emitting elements 11 to be turned on to provide a backlight source for image display of the display panel, that is, when the indicator light display is needed, only the plurality of second light-emitting elements 12 in the indicator light display area are turned on, and the plurality of first light-emitting elements 11 in the first image display area are not turned on, so that the power consumption is reduced.
Alternatively, the light emitting element 10 may include, for example, a Micro LED lamp, a Mini LED lamp, an LED lamp, or the like, but the embodiment is not limited thereto.
It should be noted that fig. 2 illustrates the indicator display area BB as being located at the upper middle of the backlight module 100, but the present application is not limited thereto, and the specific position of the indicator display area BB may be adjusted according to actual situations as long as the indicator can be displayed by using a part of the light emitting elements 10 in the backlight module 100. In the following drawings, the indicator display area BB is also located above the backlight module 100 for illustration, but the present application is not limited thereto, and the following description is omitted.
It should be noted that fig. 2 illustrates an example in which the driving chip 20 can control the plurality of second light-emitting elements 12 to light up for indicator display, and can control the plurality of first light-emitting elements 11 to light up for providing a backlight source for image display of the display panel. In other embodiments, the two driving chips may also respectively control the plurality of second light emitting elements 12 to light up for indicator display, and control the plurality of first light emitting elements 11 to light up for providing backlight source for image display of the display panel. For example, referring to fig. 3, fig. 3 is a schematic structural diagram of another backlight module according to an embodiment of the present invention, the backlight module 100 includes a first driving chip 21 and a second driving chip 22, the first driving chip 21 is used for individually driving a plurality of first light-emitting elements to light 11 to provide a backlight source for image display of a display panel, and the second driving chip 22 is used for individually driving a plurality of second light-emitting elements 12 to light for indicator display.
Optionally, fig. 4 is a schematic structural diagram of another backlight module according to an embodiment of the present invention, and referring to fig. 4, the driving chip 20 may light the light emitting elements 10 in a progressive scanning manner. Specifically, when the indicator needs to prompt, the driving chip 20 outputs a corresponding driving signal to the plurality of second light-emitting elements 12 in the indicator display area BB, so that the plurality of second light-emitting elements 12 are scanned and lit line by line for indicator display; when the display panel needs to display an image, the driving chip 20 outputs corresponding driving signals to the plurality of first light emitting elements 11 in the first image display area AA, so that the plurality of first light emitting elements 11 are scanned and lighted line by line, so as to provide a backlight source for image display of the display panel. This technical scheme not only can show through the subregion (first image display district AA and pilot lamp display area BB), realizes regional display function promptly to reduce the power consumption, can also further reduce backlight unit 100's power consumption through the mode of lighting row by row.
On the basis of the above scheme, optionally, the plurality of second light emitting elements 12 include a red light emitting element, a green light emitting element, and a blue light emitting element; the first light emitting element 11 includes a white light emitting element.
When the plurality of second light-emitting elements 12 include a red light-emitting element, a green light-emitting element, and a blue light-emitting element, multicolor display can be realized, and different operating states of the display device can be prompted. Illustratively, when the color of the second light-emitting elements 12 in the indicator display zone BB is green, it represents that there is a new message; when the color of the second light emitting elements 12 in the indicator display area BB is red, it represents that the power is insufficient. It is understood that the above examples merely illustrate that the colors of the plurality of second light-emitting elements 12 in the indicator display area BB represent different operating states of the display device, but do not limit the present application, and can be adjusted according to actual situations when actually setting.
Alternatively, each of the plurality of first light emitting elements 11 and the plurality of second light emitting elements 12 includes a red light emitting element, a green light emitting element, and a blue light emitting element.
When the plurality of first light emitting elements 11 include red light emitting elements, green light emitting elements, and blue light emitting elements, and may correspond to color resists in a color resist layer in the display panel, transmittance of the display panel may be improved by the red light emitting elements, the green light emitting elements, and the blue light emitting elements in the plurality of first light emitting elements 11.
Optionally, the shape of the indicator display area BB includes a circle, a triangle, or a diamond.
When the shape of the indicator light display area BB includes a circle, a triangle, a diamond, etc., the shape of the corresponding indicator light display area BB in the corresponding display device is also a circle, a triangle, a diamond, etc., so that different visual experiences can be brought to the user. It should be noted that the shape of the indicator display area BB includes but is not limited to the above examples, and those skilled in the art can set the shape of the indicator display area BB according to the needs of the product, and the invention is not limited in particular.
Optionally, fig. 5 is a schematic structural diagram of another backlight module according to an embodiment of the present invention, referring to fig. 5, the backlight module 100 further includes a driving circuit array 30; the plurality of first light emitting elements 11 and the plurality of second light emitting elements 12 are electrically connected to the driving chip 20 through the driving circuit array 30.
Specifically, when the indicator needs to prompt, the driving chip 20 outputs a corresponding scanning signal to the driving circuit array 30 in the indicator display area BB, controls the driving circuit array 30 in the indicator display area BB to be turned on, and simultaneously, the driving chip 20 outputs a corresponding lighting signal to the driving circuit array 30 in the indicator display area BB, and drives the plurality of second light-emitting elements 12 to be lit through the driving circuit array 30 in the area, so as to display the indicator; when the display panel needs to display an image, the driving chip 20 outputs a corresponding scanning signal to the driving circuit array 30 in the first image display area AA to control the driving circuit array 30 in the first image display area AA to be turned on, and at the same time, the driving chip 20 outputs a corresponding lighting signal to the driving circuit array 30 in the first image display area AA, and the driving circuit array 30 in this area drives the plurality of first light emitting elements 11 to be lit, so as to provide a backlight source for image display of the display panel. According to the technical scheme, the power consumption is reduced through partition display.
Optionally, fig. 6 is a schematic structural diagram of another backlight module according to an embodiment of the present invention, and referring to fig. 6, the backlight module 100 further includes: a plurality of light emitting element data lines 31 extending in the column direction; the light emitting element data line 31 is electrically connected to the driving chip 20; the light emitting elements 10 in the same column share one light emitting element data line 31; the light emitting element data line 31 is for supplying a lighting signal to the light emitting element 10; the first image display area AA includes at least one first sub-area AB and at least one second sub-area AC; the first sub-area AB and the indicator display area BB are arranged along the extending direction of the light emitting element row direction; the indicator display area BB and the second sub-area AC are arranged along the extending direction of the light emitting element column direction; the drive circuit array 30 includes a first drive circuit array 34 and a second drive circuit array 35; the first driving circuit array 34 includes a plurality of first driving circuit units 341; the second driving circuit array 35 includes a plurality of second driving circuit units 351; the plurality of first light emitting elements 11 include a plurality of first sub light emitting elements 111 and a plurality of second sub light emitting elements 112; the first sub light emitting element 111 is located in the first sub area AB; the second sub light emitting element 112 is located at the second sub area AC; the plurality of second sub light emitting elements 112 are electrically connected to the plurality of first driving circuit units 341 in a one-to-one correspondence; the plurality of second light emitting elements 12 and the plurality of first sub light emitting elements 111 are electrically connected to the plurality of second driving circuit units 351 in a one-to-one correspondence.
When the indicator light display area BB is located above and in the middle of the backlight module 100, the first image display area AA includes two first sub-areas AB; when the indicator display area BB is located at the upper left or upper right of the backlight module 100, the first image display area AA includes a first sub-area AB. The present embodiment is exemplified by the indicator display BB being located at the middle upper part of the backlight module 100. The first image display area AA includes two first sub-areas AB located on both sides of the indicator display area BB in the light emitting element row direction, respectively.
The driving circuit array 30 includes a first driving circuit array 34 and a second driving circuit array 35, and the second driving circuit array 35 is located in the area of the two first sub-areas AB and the indicator display area BB, and drives the plurality of first sub-light emitting elements 111 in the two first sub-areas AB and the plurality of second light emitting elements 12 in the indicator display area BB to be lit. The first driving circuit array 34 is located in the second sub-area AC for driving the plurality of second sub light emitting elements 112 in the second sub-area AC to light up.
Specifically, when the indicator needs to indicate, the driving chip 20 outputs corresponding scanning signals to the second driving circuit arrays 35 located in the two first sub-areas AB and the indicator display area BB, controls the second driving circuit arrays 35 located in the two first sub-areas AB and the indicator display area BB to be turned on, and controls the light-emitting element data lines 31 corresponding to the indicator display area BB to send lighting signals to the plurality of second light-emitting elements 12, so that the plurality of second light-emitting elements 12 are lit for indicator display.
When the display panel needs to display an image, the driving chip 20 outputs corresponding scanning signals to the second driving circuit array 35 located in the two first sub-areas AB and the indicator display area BB, and at the same time, controls the light emitting element data lines 31 corresponding to the two first sub-areas AB to send lighting signals to the plurality of first sub-light emitting elements 111, so as to light the plurality of first sub-light emitting elements 111, and then, the driving chip 20 outputs corresponding scanning signals to the first driving circuit array 34 located in the second sub-area AC, and at the same time, controls the light emitting element data lines 31 corresponding to the second sub-area AC to send lighting signals to the plurality of second sub-light emitting elements 112, so as to light the plurality of second sub-light emitting elements 112, and lights the plurality of first sub-light emitting elements 111 and the plurality of second sub-light emitting elements 112, so as to provide a backlight source for the image display of the display panel.
On the basis of the above scheme, optionally, with continued reference to fig. 6, the backlight module 100 further includes a first scanning circuit 41 and a second scanning circuit 42; the first scanning circuit 41 and the second scanning circuit 42 are electrically connected to the driving chip 20; the first scan circuit 41 is electrically connected to the first drive circuit array 34; the first scanning circuit 41 includes a plurality of cascaded shift register units (not shown in the figure); the first scan circuit 41 is used to turn on the first driving circuit units 341 row by row; the second scanning circuit 42 is electrically connected to the second driving circuit array 35; the second scanning circuit 42 includes a plurality of cascaded shift register units; the second scanning circuit 42 is for turning on the second driving circuit units 351 row by row.
Specifically, when the indicator needs to prompt, the driving chip 20 outputs a corresponding indicator display instruction to the second scanning circuit 42, so that the second scanning circuit 42 turns on the second driving circuit units 351 line by line according to the indicator display instruction, and controls the light-emitting element data lines 31 corresponding to the indicator display area BB to send the lighting signals to the plurality of second light-emitting elements 12, so that the plurality of second light-emitting elements 12 are lit for indicator display.
When the display panel needs to display an image, the driving chip 20 outputs a corresponding first image display instruction to the second scanning circuit 42, so that the second scanning circuit 42 turns on the second driving circuit unit 351 line by line according to the first image display instruction, and at the same time, controls the light emitting element data lines 31 corresponding to the two first sub-areas AB to send lighting signals to the plurality of first sub-light emitting elements 111, so as to light the plurality of first sub-light emitting elements 111, and then, the driving chip 20 continues to output the first image display instruction to the first scanning circuit 41, so that the first scanning circuit 41 turns on the first driving circuit unit 341 line by line according to the first image display instruction, and at the same time, controls the light emitting element data lines 31 corresponding to the second sub-areas AC to send lighting signals to the plurality of second sub-light emitting elements 112, so as to light the plurality of second sub-light emitting elements 112, and light the plurality of first sub-light emitting elements 111 and the plurality of second sub-light emitting elements 112, to provide a backlight for image display of the display panel.
Fig. 7 is a schematic structural diagram of another backlight module according to an embodiment of the invention. On the basis of the above scheme, optionally, referring to fig. 7, the backlight module 100 further includes: a connection circuit 50; the control end of the connecting circuit 50 is electrically connected with the driving chip 20; a first end of the connection circuit 50 is electrically connected to the first scanning circuit 41; a second terminal of the connection circuit 50 is electrically connected to the second scanning circuit 42; the driving chip 20 is configured to control the second scanning circuit 42 to turn on the second driving circuit units 351 line by line according to the indicator display instruction, and simultaneously control the light emitting element data lines 31 corresponding to the indicator display area BB to send lighting signals to the plurality of second light emitting elements 12, so that the plurality of second light emitting elements 12 are lit for indicator display; the driving chip 20 is configured to control the second scanning circuit 42 and the first scanning circuit 41 to turn on the second driving circuit unit 351 and the first driving circuit unit 341 line by line according to the first image display instruction, and simultaneously control the light emitting element data line 31 corresponding to the first image display area AA to send a lighting signal to the plurality of first light emitting elements 11, so that the plurality of first light emitting elements 11 in the first image display area AA are lit to provide a backlight source for image display of the display panel; the driving chip 20 is configured to control the connection circuit 50 to be turned on according to the second image display instruction, and control the second scanning circuit 42 to turn on the second driving circuit units 351 row by row, and the first scanning circuit 41 to turn on the first driving circuit units 341 row by row, so as to light the plurality of second light emitting elements 12 in the indicator display area BB and the plurality of first light emitting elements 11 in the first image display area AA to provide a backlight for image display of the display panel, where the indicator display area BB and the first image display area AA serve as the second image display area.
Specifically, when the indicator needs to prompt, the driving chip 20 outputs a corresponding indicator display instruction to the second scanning circuit 42, so that the second scanning circuit 42 turns on the second driving circuit units 351 line by line according to the indicator display instruction, and controls the light-emitting element data lines 31 corresponding to the indicator display area BB to send the lighting signals to the plurality of second light-emitting elements 12, so that the plurality of second light-emitting elements 12 are lit for indicator display.
When the corresponding first image display area AA of the display panel needs to display an image, the driving chip 20 outputs a corresponding first image display instruction to the second scanning circuit 42, so that the second scanning circuit 42 turns on the second driving circuit units 351 row by row according to the first image display instruction, and at the same time, controls the light emitting element data lines 31 corresponding to the two first sub-areas AB to send lighting signals to the plurality of first sub-light emitting elements 111, so as to light the plurality of first sub-light emitting elements 111, and then, continuously outputs the first image display instruction to the first scanning circuit 41, so that the first scanning circuit 41 turns on the first driving circuit unit 341 row by row according to the first image display instruction, and at the same time, controls the light emitting element data lines 31 corresponding to the second sub-areas AC to send lighting signals to the plurality of second sub-light emitting elements 112, so as to light the plurality of second sub-light emitting elements 112, the plurality of first sub light emitting elements 111 and the plurality of second sub light emitting elements 112 are lit to provide a backlight source for displaying an image in the first image display area AA corresponding to the display panel. The technical scheme further reduces power consumption through partition display and line-by-line conduction.
Meanwhile, the embodiment can also realize full-screen display, namely the indicator light display area BB can not only display the indicator light, but also be multiplexed as a part of the second image display area when the indicator light is not displayed, so as to provide a backlight source for the image display of the display panel. Specifically, the driving chip 20 outputs a corresponding second image display instruction to control the connection circuit 50 to be turned on, and controls the second scanning circuit 42 to turn on the second driving circuit units 351 row by row, and the first scanning circuit 41 turns on the first driving circuit unit 341 row by row, so that the plurality of second light-emitting elements 12 in the indicator display area BB and the plurality of first light-emitting elements 11 in the first image display area AA are turned on to provide a backlight source for the image display of the display panel, that is, the indicator display area BB and the first image display area AA are all used to provide a backlight source for the image display of the display panel. According to the technical scheme, the power consumption is reduced through partition display and line-by-line conduction, and meanwhile, full-screen display is achieved.
On the basis of the above scheme, optionally, with reference to fig. 7, the first end of the connection circuit 50 is electrically connected to the output end of any stage of shift register unit of the second scan circuit 42; a second terminal of the connection circuit 50 is electrically connected to an enable terminal of the first stage shift register unit of the first scan circuit 41; alternatively, the second end of the connection circuit 50 is electrically connected to the output end of any one stage of shift register unit of the first scan circuit 41; the first terminal of the connection circuit 50 is electrically connected to the enable terminal of the first stage shift register unit of the second scan circuit 42.
Here, the output terminal of any stage of the shift register unit of the second scan circuit 42 is electrically connected to the enable terminal of the first stage of the shift register unit of the first scan circuit 41 by the connection circuit 50, or the output terminal of any stage of the shift register unit of the first scan circuit 41 is electrically connected to the enable terminal of the first stage of the shift register unit of the second scan circuit 42. When the light emitting elements 10 of the whole backlight module 100 need to be turned on line by line, the driving chip 20 is not required to transmit signals to the second scanning circuit 42 and the first scanning circuit 41 in a time-sharing manner, so that after the second scanning circuit 42 turns on the second driving circuit unit 351 line by line according to the signals transmitted by the driving chip 20, the first driving circuit unit 341 is turned on line by line according to the signals transmitted by the driving chip 20, and the light emitting elements 10 of the whole backlight module 100 can be turned on line by line only by transmitting the signals once by the driving chip, thereby improving the accuracy of the time sequence of turning on the light emitting elements 10 line by line.
Fig. 8 is a schematic structural diagram of another backlight module according to an embodiment of the invention. On the basis of the above scheme, optionally, referring to fig. 8, the connection circuit 50 includes a MOS transistor or a triode.
It should be noted that the connection circuit 50 includes but is not limited to the above examples, and those skilled in the art can select the connection circuit according to actual situations, and the embodiment of the present invention is not particularly limited as long as the electrical connection between the first scanning circuit 41 and the second scanning circuit 42 can be realized, and the light emitting elements 10 can be turned on row by row.
Optionally, fig. 9 is a schematic structural diagram of another backlight module according to an embodiment of the present invention, and referring to fig. 9, different from fig. 2, the backlight module 100 further includes a driving circuit array located in the indicator display area BB and a third scanning circuit 43, and the driving chips include the first driving chip 21 and the second driving chip 22. The first driving chip 21 directly drives the plurality of first light emitting elements 11 in the first image display area AA to light up, so as to provide a backlight source for image display of the display panel. When the indicator of the indicator display area BB needs to prompt, the driving chip 20 outputs a corresponding signal to the third scanning circuit 43, so that the third scanning circuit 43 turns on the driving circuit array of the indicator display area BB line by line according to the signal, and controls the light-emitting element data lines of the indicator display area BB to send the lighting signal to the plurality of second light-emitting elements 12, so that the plurality of second light-emitting elements 12 are lit for indicator display. Namely, the indicator display area BB is designed to be partitioned from the first image display area AA, and the indicator display area BB controls the plurality of second light-emitting elements 12 by using a single scanning circuit to perform indicator display. When the plurality of first light emitting elements 11 in the first image display area AA are not operated, the plurality of second light emitting elements 12 in the indicator display area BB can still be operated independently, and power consumption can be reduced by conducting on line by line.
Based on the same inventive concept, the embodiment of the invention also provides a display device. Fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 10, the display device 300 includes a display panel 200 and the backlight module 100 in the above embodiment. Therefore, the display device 300 provided by the embodiment of the invention also has the advantages described in the above embodiments, and further description is omitted here. For example, the display device 300 may be an electronic device such as a mobile phone, a computer, a smart wearable device (e.g., a smart watch), and an in-vehicle display device, which is not limited in this embodiment of the invention.
Fig. 11 is a schematic structural diagram of another display device according to an embodiment of the present invention. On the basis of the above scheme, optionally, referring to fig. 11, the plurality of second light emitting elements 12 in the backlight module 100 include a red light emitting element, a green light emitting element, and a blue light emitting element; the first light emitting element 11 includes a white light emitting element; the display panel 200 includes an array substrate 210 and a color film substrate 230 which are oppositely disposed; a liquid crystal layer 220 is arranged between the array substrate 210 and the color film substrate 230; the color film substrate 230 includes a color resist layer 231; the color resistance layer 231 is positioned in the first image display area AA.
The array substrate 210 and the color filter substrate 230 corresponding to the indicator light display area BB do not deposit a film layer, and for example, the display area BB may only include a transparent substrate in the array substrate 210 and a transparent substrate in the color filter substrate 230. Since the second light emitting elements 12 in the indicator display area BB include red light emitting elements, green light emitting elements, and blue light emitting elements, different operating states of the display device can be prompted by different colors formed by the second light emitting elements 12 in the indicator display area BB in the backlight module 100. Need not set up the pilot lamp alone, also need not set up the frame district that is used for placing the pilot lamp alone, practice thrift the cost, and be favorable to display device's comprehensive screen design.
Fig. 12 is a schematic structural diagram of another display device according to an embodiment of the present invention. On the basis of the above scheme, optionally, referring to fig. 12, each of the plurality of first light emitting elements 11 and the plurality of second light emitting elements 12 in the backlight module 100 includes a red light emitting element, a green light emitting element, and a blue light emitting element; the display panel 200 includes an array substrate 210 and a color film substrate 230 which are oppositely disposed; a liquid crystal layer 220 is arranged between the array substrate 210 and the color film substrate 230; the color film substrate 230 includes a color resist layer 231; the color resistance layer 231 is located in the first image display area AA and the indicator display area BB.
The color resistance layer 231 is normally deposited on the color film substrate 230 corresponding to the indicator light zone corresponding to the indicator light display zone BB. For example, the color of the color resist layer 231 is the same as the color of the first light emitting element 11 and the second light emitting element 12 in the corresponding region, so that the light transmittance of the indicator display area BB can be increased, and the present technical solution can prompt the display device of different working states through different colors formed by the second light emitting element 12 in the indicator display area BB of the backlight module 100. Need not set up the pilot lamp alone, also need not set up the frame district that is used for placing the pilot lamp alone, practice thrift the cost, and be favorable to display device's comprehensive screen design.
Optionally, when the second light emitting element 12 of the indicator display area BB does not need to perform indicator display, the second light emitting element 12 of the indicator display area BB is also used to provide a backlight source for image display of the display panel, that is, the second light emitting element 12 of the indicator display area BB and the first light emitting element 11 of the first image display area AA can all be used to provide a backlight source for image display of the display panel, the indicator display area BB is multiplexed as a part of the second image display area, and is used together with the first image display area AA as the second image display area to perform image display, thereby implementing full-screen display.
Optionally, since the color resistance layer 231 is located in the first image display area AA and the indicator display area BB, at this time, the first light emitting element 11 and the second light emitting element 12 in the backlight module 100 may all be white light emitting elements, and different working states of the display device may be prompted by colors formed by the color resistance layer 231 of the indicator display area BB.
Optionally, the color resistance layer in the indicator light display area BB may be shaped as a special-shaped structure such as a circle, a triangle or a diamond, so as to bring different visual experiences to the user.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (13)
1. A backlight module, comprising: a first image display area and an indicator light display area;
the LED lamp also comprises a plurality of light-emitting elements arranged in an array;
the plurality of light-emitting elements include a plurality of first light-emitting elements located in the first image display area and a plurality of second light-emitting elements located in the indicator display area;
the first light-emitting elements and the second light-emitting elements are electrically connected with a driving chip; the driving chip is used for controlling the plurality of second light-emitting elements to be lightened so as to display the indicator lamp; the driving chip is further used for controlling the plurality of first light-emitting elements to be lightened so as to provide a backlight source for image display of the display panel.
2. The backlight module according to claim 1, wherein the plurality of second light emitting elements comprise red light emitting elements, green light emitting elements and blue light emitting elements;
the first light emitting element includes a white light emitting element.
3. The backlight module as claimed in claim 1, wherein the first and second light-emitting elements each comprise a red light-emitting element, a green light-emitting element and a blue light-emitting element.
4. The backlight module according to claim 1, further comprising a driving circuit array;
the plurality of first light emitting elements and the plurality of second light emitting elements are electrically connected with the driving chip through the driving circuit array.
5. The backlight module of claim 4, further comprising: a plurality of light emitting element data lines extending in a column direction; the light-emitting element data line is electrically connected with the driving chip; the light-emitting elements in the same column share one light-emitting element data line; the light-emitting element data line is used for providing a lighting signal for the light-emitting element;
the first image display area comprises at least one first sub-area and at least one second sub-area; the first sub-area and the indicator light display area are arranged along the extending direction of the row direction of the light-emitting elements; the indicator light display area and the second sub-area are arranged along the extending direction of the light-emitting element column direction;
the driving circuit array comprises a first driving circuit array and a second driving circuit array; the first driving circuit array includes a plurality of first driving circuit units; the second driving circuit array includes a plurality of second driving circuit units;
the plurality of first light emitting elements include a plurality of first sub light emitting elements and a plurality of second sub light emitting elements;
the first sub-light-emitting element is positioned in the first sub-area; the second sub-light-emitting element is positioned in the second sub-area;
the plurality of second sub-light-emitting elements are electrically connected with the plurality of first driving circuit units in a one-to-one correspondence manner; the plurality of second light emitting elements and the plurality of first sub light emitting elements are electrically connected with the plurality of second driving circuit units in a one-to-one correspondence manner.
6. The backlight module according to claim 5, further comprising a first scanning circuit and a second scanning circuit; the first scanning circuit and the second scanning circuit are electrically connected with the driving chip; the first scanning circuit is electrically connected with the first driving circuit array; the first scanning circuit comprises a plurality of cascaded shift register units; the first scanning circuit is used for conducting the first driving circuit units line by line;
the second scanning circuit is electrically connected with the second driving circuit array; the second scanning circuit comprises a plurality of cascaded shift register units; the second scanning circuit is used for conducting the second driving circuit units line by line.
7. The backlight module of claim 6, further comprising:
a connection circuit;
the control end of the connecting circuit is electrically connected with the driving chip;
the first end of the connecting circuit is electrically connected with the first scanning circuit; the second end of the connecting circuit is electrically connected with the second scanning circuit;
the driving chip is used for controlling the second scanning circuit to conduct the second driving circuit units line by line according to an indicator lamp display instruction, and simultaneously controlling the light-emitting element data lines corresponding to the indicator lamp display area to send lighting signals to the plurality of second light-emitting elements so as to light the plurality of second light-emitting elements for indicator lamp display;
the driving chip is used for controlling the second scanning circuit and the first scanning circuit to conduct the second driving circuit unit and the first driving circuit unit line by line according to a first image display instruction, and simultaneously controlling the light-emitting element data line corresponding to the first image display area to send a lighting signal to the plurality of first light-emitting elements so as to light the plurality of first light-emitting elements in the first image display area to provide a backlight source for image display of the display panel;
the driving chip is used for controlling the connection circuit to be conducted according to a second image display instruction and controlling the second scanning circuit to be conducted on the second driving circuit units line by line, the first scanning circuit is conducted on the first driving circuit units line by line so that the second light-emitting elements of the indicator lamp display area and the first light-emitting elements of the first image display area are lightened to provide a backlight source for image display of the display panel, and the indicator lamp display area and the first image display area serve as a second image display area.
8. The backlight module according to claim 7, wherein the first terminal of the connection circuit is electrically connected to the output terminal of any stage of the shift register unit of the second scan circuit; the second end of the connecting circuit is electrically connected with the enabling end of the first-stage shift register unit of the first scanning circuit;
or the second end of the connecting circuit is electrically connected with the output end of any stage of shift register unit of the first scanning circuit; and the first end of the connecting circuit is electrically connected with the enabling end of the first-stage shift register unit of the second scanning circuit.
9. The backlight module as claimed in claim 7, wherein the connection circuit comprises a MOS transistor or a triode.
10. The backlight module according to claim 1, wherein the shape of the indicator display area comprises a circle, a triangle or a diamond.
11. A display device comprising a display panel and the backlight module according to any one of claims 1-10.
12. The display device according to claim 11, wherein the plurality of second light-emitting elements in the backlight module comprise a red light-emitting element, a green light-emitting element and a blue light-emitting element; the first light emitting element includes a white light emitting element;
the display panel comprises an array substrate and a color film substrate which are oppositely arranged; a liquid crystal layer is arranged between the array substrate and the color film substrate;
the color film substrate comprises a color resistance layer; the color resistance layer is positioned in the first image display area.
13. The display device according to claim 11, wherein the first light-emitting elements and the second light-emitting elements in the backlight module each comprise a red light-emitting element, a green light-emitting element, and a blue light-emitting element;
the display panel comprises an array substrate and a color film substrate which are oppositely arranged; a liquid crystal layer is arranged between the array substrate and the color film substrate;
the color film substrate comprises a color resistance layer; the color resistance layer is located in the first image display area and the indicator light display area.
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