Display device

Abstract

The utility model discloses a display device, and the display device comprises a backlight module (100) which comprises a plurality of light-emitting units (140) which are arranged in an array; the liquid crystal module (200) covers the light emitting unit (140) in the first area (110) of the backlight module (100); wherein the light emitting unit (140) in the second area (120) of the backlight module (100) is out of the coverage range of the liquid crystal module (200); the first region (110) is adjacent to the second region (120). According to the scheme, the problem that a gap is generated when the atmosphere lamp assembly structure and the display screen assembly structure are in lap joint, and adaptation of the whole shape is not facilitated can be solved.

Description

Technical Field

[0001] The present application relates to the field of display, and relates to but is not limited to a display device. Background Art

[0002] With the development of intelligent, electronic and digitalization in the automotive industry, automobile design has also ushered in a huge reform. At present, with the development of intelligent cockpits, the frequency of vehicle display devices is gradually increasing. At present, LCD (Liquid Crystal Display) with Mini LED (MiniLight Emitting Diode) backlight has gradually been applied to vehicle display devices. At present, the ambient light assembly and the display assembly are two independent components, and there is a gap between the two components, which are not adapted by shape. Utility Model Content

[0003] The present application provides a display device that can solve the problem of a gap between an ambient light assembly structure and a display screen assembly structure when they are overlapped, which is not conducive to the adaptation of the overall shape.

[0004] The technical solution of this application is implemented as follows:

[0005] The present application provides a display device, comprising:

[0006] The backlight module 100 includes a plurality of light emitting units 140 arranged in an array;

[0007] A liquid crystal module 200 covering the light emitting unit 140 in the first area 110 of the backlight module;

[0008] The light emitting units 140 in the second area 120 of the backlight module 100 are outside the coverage of the liquid crystal module 200 ; and the first area 110 is adjacent to the second area 120 .

[0009] In some embodiments, the backlight module 100 includes a first driving module 410 and a second driving module 420;

[0010] The first driving module 410 is used to drive the light emitting unit 140 in the first area 110 of the backlight module 100;

[0011] The second driving module 420 is used to drive the light emitting unit 140 in the second area 120 of the backlight module 100 .

[0012] In some embodiments, the first driving module 410 includes a plurality of first driving circuits 310 , and the second driving module 420 includes a plurality of second driving circuits 320 ; the first driving circuits 310 are different from the second driving circuits 320 .

[0013] In some embodiments, the backlight module 100 further includes a backlight substrate 130;

[0014] The plurality of light emitting units arranged in an array are disposed on the first surface of the backlight substrate 130;

[0015] The first driving module 410 and the second driving module 420 are disposed on the second surface of the backlight substrate 130 ; the first surface and the second surface are two opposite surfaces of the backlight substrate 130 .

[0016] In some embodiments, the backlight substrate 130 includes at least one of a printed circuit board and a glass substrate.

[0017] In some embodiments, the light emitting unit 140 in the first region 110 of the backlight module 100 includes an LED chip group and a first packaging layer covering the LED chip group.

[0018] In some embodiments, the light-emitting unit 140 in the second area 120 of the backlight module 100 includes an LED chip group and a second packaging layer covering the LED chip group; the transmittance of the first packaging layer is greater than the transmittance of the second packaging layer.

[0019] In some embodiments, the backlight module 100 further includes a plurality of isolation structures 400 ; the isolation structure 400 is located between two adjacent light-emitting units 140 .

[0020] In some embodiments, the LED chip set includes at least a red chip, a green chip, and a blue chip.

[0021] In some embodiments, the display device also includes a glass cover plate 510 and a housing 520; the backlight module 100 and the liquid crystal module 200 are arranged between the glass cover plate 510 and the housing 520; the glass cover plate 510 and the housing 520 are used to encapsulate the backlight module 100 and the liquid crystal module 200.

[0022] In the solution of the present application, by dividing the backlight module into a first area and a second area, the first area is covered with a liquid crystal module to realize the function of a display screen, and the second area is not covered with a liquid crystal module to realize the function of an atmosphere light. Therefore, the embodiment of the present application can integrate the atmosphere light and the display screen into the same display device, and the atmosphere light and the display screen are adjacent to each other without the problem of overlap gap, and the overall shape is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a first optional structure of a display device provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of the first area and the second area of ​​the backlight module provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a first driving module and a second driving module provided in an embodiment of the present application;

[0026] Figure 4 A second optional structural schematic diagram of the display device provided in an embodiment of the present application.

[0027] The figures are marked as follows: 100-backlight module; 200-liquid crystal module; 110-first area; 120-second area; 130-backlight substrate; 140-light-emitting unit; 310-first driving circuit; 320-second driving circuit; 400-isolation structure; 410-first driving module; 420-second driving module; 510-glass cover; 520-housing. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0029] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0030] In the following description, the terms "first\second\third" are used only as examples to distinguish different objects, and do not represent a specific order for the objects, nor do they have a limitation on the order of precedence. It is understandable that "first\second\third" can be interchanged with a specific order or order of precedence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0032] In some embodiments, the ambient light assembly structure and the display screen assembly structure are two independent components. Overlapping the ambient light assembly structure and the display screen assembly structure can provide a better cockpit experience for the driver and passengers. However, since the two components are independent components, on the one hand, a gap will be generated when the two components are overlapped, which is not conducive to the adaptation of the overall shape. On the other hand, two sets of control logic need to be used in the cockpit controller to control the two components separately.

[0033] In order to solve the above problems, an embodiment of the present application provides a display device. Below, various embodiments of the display device provided by the embodiment of the present application are described.

[0034] In some embodiments, Figure 1 As shown, the display device includes:

[0035] The backlight module 100 includes a plurality of light emitting units 140 arranged in an array;

[0036] A liquid crystal module 200 covering the light emitting unit 140 in the first area 110 of the backlight module;

[0037] The light emitting units 140 in the second area 120 of the backlight module are outside the coverage of the liquid crystal module 200 ; and the first area 110 is adjacent to the second area 120 .

[0038] Here, the term "arranged in an array" means arranged in rows and columns. The intervals between the plurality of light emitting units 140 arranged along the row direction may be the same, and the intervals between the plurality of light emitting units 140 arranged along the column direction may also be the same.

[0039] In the embodiment of the present application, the liquid crystal module 200 may include a TFT (Thin Film Transistor) array circuit board, a liquid crystal layer, and a color filter. The above composition of the liquid crystal module is only an example, and the present application does not limit it.

[0040] In the embodiment of the present application, by dividing the backlight module 100 into a first area 110 and a second area 120, and covering the liquid crystal module 200 on the first area 110, when the white light emitted by the light-emitting unit 140 in the first area 110 passes through the liquid crystal layer, the liquid crystal molecules in the liquid crystal layer are controlled to deflect to different degrees based on the TFT array circuit board, so that different degrees of brightness can be displayed, and then the white light is allowed to present different colors through the color filter. It is understandable that the white light emitted by the light-emitting unit 140 can be emitted directly or indirectly, such as after being emitted by mixing light. Therefore, in the embodiment of the present application, by covering the liquid crystal module 200 on the first area 110, the function of the display screen can be realized.

[0041] In the embodiment of the present application, the liquid crystal module 200 is not covered on the second area 120, and the light-emitting unit in the second area 120 can emit colored light (for example, red light, green light, and blue light, etc.) or white light, and can realize the function of an ambient light.

[0042] Therefore, the embodiment of the present application can integrate the atmosphere light and the display screen into the same display device, and the atmosphere light is adjacent to the display screen, there will be no problem of overlapping gaps, and the overall shape is strong.

[0043] In some embodiments, Figure 2 As shown, the first area 110 may be located above the second area 120. In other embodiments, the first area 110 may be located below the second area 120. Alternatively, the first area 110 may be located on the left side of the second area 120. Alternatively, the first area 110 may be located on the right side of the second area 120. In yet other embodiments, the first area 110 may also surround the second area 120. The embodiment of the present application does not limit the relative positions of the first area 110 and the second area 120, and the first area 110 and the second area 120 may be set according to actual needs, so that the shape between the atmosphere light and the display screen is more varied.

[0044] In some embodiments, in combination Figure 1 and Figure 3 , the backlight module 100 further includes a first driving module 410 and a second driving module 420;

[0045] The first driving module 410 is used to drive the light emitting units 140 in the first area 110 of the backlight module 100 , so as to drive the light emitting units in the first area to emit light 140 .

[0046] The second driving module 420 is used to drive the light emitting units 140 in the second area 120 of the backlight module 100 , so as to drive the light emitting units in the second area to emit light 140 .

[0047] In the embodiment of the present application, the first driving module 410 and the second driving module 420 can be controlled separately. For example, when the first driving module 410 is enabled to drive the light-emitting unit 140 in the first area 110 of the backlight module 100, the second driving module 420 can be disabled to drive the light-emitting unit 140 in the second area 120 of the backlight module 100, that is, the function of the display screen is enabled at this time, but the function of the atmosphere light is not enabled. For another example, when the first driving module 410 is disabled to drive the light-emitting unit 140 in the first area 110 of the backlight module 100, the second driving module 420 can be enabled to drive the light-emitting unit 140 in the second area 120 of the backlight module 100, that is, the function of the display screen is disabled at this time, but the function of the atmosphere light is enabled. For another example, when the first driving module 410 is enabled to drive the light-emitting units 140 in the first area 110 of the backlight module 100, the second driving module 420 may be enabled to drive the light-emitting units 140 in the second area 120 of the backlight module 100, that is, at this time, both the display screen function and the atmosphere light function are enabled. For another example, when the first driving module 410 is not enabled to drive the light-emitting units 140 in the first area 110 of the backlight module 100, the second driving module 420 may not be enabled to drive the light-emitting units 140 in the second area 120 of the backlight module 100, that is, at this time, both the display screen function and the atmosphere light function are not enabled.

[0048] In some embodiments, the first driving module 410 includes a plurality of first driving circuits 310 , and the second driving module 420 includes a plurality of second driving circuits 320 ; the first driving circuits 310 are different from the second driving circuits 320 .

[0049] In some embodiments, the driving circuit (including the first driving circuit 310 and the second driving circuit 320 ) and the light emitting unit 140 may correspond one to one, that is, one driving circuit drives one light emitting unit 140 .

[0050] In other embodiments, the driving circuit (including the first driving circuit 310 and the second driving circuit 320 ) and the light emitting units 140 may correspond to each other in a one-to-many manner, that is, one driving circuit drives multiple light emitting units 140 .

[0051] It is understandable that the first driving circuit 310 needs to drive the light-emitting unit 140 in the first area 110 to emit white light, and the second driving circuit 320 needs to drive the light-emitting unit 140 in the second area 120 to emit colored light or white light. In some embodiments, the light-emitting unit 140 may include an LED chip group. The LED chip group includes at least a red chip, a green chip, and a blue chip. The first driving circuit 310 can selectively drive or not drive the corresponding light-emitting unit 140. Based on the first driving circuit selecting to drive the corresponding light-emitting unit 140, the first driving circuit 310 can simultaneously drive the red chip, the green chip, and the blue chip in the light-emitting unit 140 to emit light, so that the red chip emits red light, the green chip emits green light, and the blue chip emits blue light. White light can be obtained by mixing red light, green light, and blue light. The second driving circuit 320 can also choose to drive or not drive the corresponding light-emitting unit 140. Based on the second driving circuit selecting to drive the corresponding light-emitting unit 140, the second driving circuit 320 can selectively drive at least one of the red chip, the green chip, and the blue chip in the light-emitting unit 140 to emit light according to demand. In some implementations, one of the red chip, green chip, and blue chip can be selectively driven to emit light according to needs. For example, the red chip can emit red light. Or, the green chip can emit green light. Or, the blue chip can emit blue light. In some implementations, two of the red chip, green chip, and blue chip can be selectively driven to emit light according to needs. For example, the red chip can emit red light while the green chip emits green light, or the red chip can emit red light while the blue chip emits blue light, or the green chip can emit green light while the blue chip emits blue light. Here, yellow light can be obtained by mixing red light and green light. Magenta (purple) light can be obtained by mixing red light and blue light. Cyan light can be obtained by mixing blue light and green light. In this way, the color of the atmosphere light can be enriched.

[0052] In the embodiment of the present application, at least one first driving circuit 310 in the first driving module 410 can be selected according to the display requirements of the display screen, and the corresponding light-emitting unit 140 can be driven by at least one first driving circuit 310 to perform fine zone dimming.

[0053] Similarly, according to the display requirements of the ambient light, at least one second driving circuit 320 in the second driving module 420 can be selected, and the corresponding light-emitting unit 140 can be driven by at least one second driving circuit 320 to perform fine partitioned lighting.

[0054] In some embodiments, the LED chip group may further include a white chip, which emits white light and can be used to increase the brightness of the mixed light of the three-color (red, green, and blue) chips.

[0055] In some embodiments, the LED chip set may further include a blue chip, and a quantum film is covered on the blue chip to obtain white light.

[0056] It is understandable that the first driving circuit 310 can also change the light brightness of the corresponding light-emitting unit 140 by changing its electrical parameters, such as the voltage, resistance, etc.

[0057] Similarly, the second driving circuit 320 can also change the light brightness of the corresponding driven light emitting unit 140 by changing its electrical parameters, such as the magnitude of voltage, resistance, etc.

[0058] Since the first driving circuit 310 and the second driving circuit 320 need to implement different driving functions, it can be understood that the circuit structures of the first driving circuit 310 and the second driving circuit 320 can be different, so as to implement different driving functions.

[0059] In some embodiments, Figure 1 As shown, the backlight module further includes a backlight substrate 130;

[0060] The plurality of light emitting units 140 arranged in an array are disposed on the first surface of the backlight substrate 130;

[0061] The first driving module and the second driving module are disposed on the second surface of the backlight substrate 130 ; the first surface and the second surface are two opposite surfaces of the backlight substrate 130 .

[0062] In the embodiment of the present application, by arranging the light-emitting unit 140 and the driving module (including the first driving module 410 and the second driving module 420) on the opposite sides of the same backlight substrate 130, the overall thickness of the backlight module 100 can be effectively reduced, which is conducive to the thinning of the display device. In addition, since the first driving module 410 and the second driving module 420 are arranged on the same backlight substrate 130, a set of control logic can be used in the cockpit controller to realize the control of the first driving module 410 and the second driving module 420.

[0063] In the embodiment of the present application, the packaging form of the atmosphere light and the display screen can be the same, for example, both adopt the COB (Chip On Board) packaging method. And the atmosphere light and the display screen can be packaged at the same time.

[0064] In some other embodiments, the backlight module 100 may further include a driving substrate. In this case, a plurality of light-emitting units 140 arranged in an array are disposed on the first surface of the backlight substrate 130; the first driving module 410 and the second driving module 420 are disposed on the third surface of the driving substrate; the backlight substrate 130 includes a first surface and a second surface opposite to each other, and the driving substrate includes a third surface and a fourth surface opposite to each other; the second surface of the backlight substrate 130 and the fourth surface of the driving substrate may be bonded together.

[0065] In some embodiments, the backlight substrate includes at least one of a printed circuit board and a glass substrate.

[0066] In some embodiments, the light emitting unit 140 in the first region 110 of the backlight module includes an LED chip group and a first packaging layer covering the LED chip group.

[0067] In some embodiments, the light-emitting unit 140 in the second area 120 of the backlight module includes an LED chip group and a second packaging layer covering the LED chip group; the transmittance of the first packaging layer is greater than the transmittance of the second packaging layer.

[0068] In some embodiments, the material used for the first encapsulation layer and the material used for the second encapsulation layer may be different materials, and the transmittance of the material used for the first encapsulation layer is greater than the transmittance of the material used for the second encapsulation layer.

[0069] In other embodiments, the material used for the first encapsulation layer and the material used for the second encapsulation layer may be a composite material having the same components. The transmittance of the composite material may be adjusted by changing the ratio of the components. For example, the composite material may include carbon powder, and the transmittance of the composite material may be adjusted by adjusting the ratio of the carbon powder.

[0070] It is understandable that the light of the ambient light is softer than the light emitted by the display screen, that is, the brightness of the ambient light needs to be lower than the brightness of the display screen. Therefore, in the embodiment of the present application, the transmittance of the first encapsulation layer is greater than the transmittance of the second encapsulation layer.

[0071] In other embodiments, based on actual design requirements, the brightness of the display screen needs to be lower than the brightness of the ambient light, so that the transmittance of the first encapsulation layer can be lower than the transmittance of the second encapsulation layer.

[0072] In some other embodiments, based on actual design requirements, the brightness of the display screen needs to be equal to the brightness of the ambient light, so that the transmittance of the first packaging layer can be equal to the transmittance of the second packaging layer.

[0073] In the embodiment of the present application, the transmittance of the first encapsulation layer and the second encapsulation layer can be adjusted according to the actual design requirements of the display screen and the atmosphere light.

[0074] In the embodiment of the present application, the first packaging layer and the second packaging layer can also protect the covered LED chip group, making the LED chip group less likely to be displaced and less susceptible to corrosion by water vapor, thereby extending the life of the LED chip group.

[0075] In the embodiment of the present application, the first encapsulation layer and the second encapsulation layer can be formed by dispensing.

[0076] In some embodiments, Figure 2 As shown, the backlight module 100 further includes a plurality of isolation structures 400 ; the isolation structure 400 is located between two adjacent light-emitting units 140 .

[0077] The isolation structure 400 may be used to prevent light mixing between different light emitting units 140 .

[0078] In some embodiments, Figure 4 As shown, the display device further includes a glass cover plate 510 and a housing 520 ; the backlight module 100 and the liquid crystal module 200 are arranged between the glass cover plate 510 and the housing 520 ; the glass cover plate 510 and the housing 520 are used to encapsulate the backlight module 100 and the liquid crystal module 200 .

[0079] In the embodiment of the present application, the glass cover plate 510 and the outer shell 520 can protect the backlight module 100 and the liquid crystal module 200, for example, prevent water vapor, impurities, etc. from entering the liquid crystal module 200 and the backlight module 100, and avoid damage to the liquid crystal module 200 and the backlight module 100 caused by external forces.

[0080] It should be understood that "one embodiment" or "an embodiment" mentioned throughout this application means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in some embodiments" appearing throughout the specification may not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above-mentioned sequence numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments.

[0081] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0082] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0083] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0084] In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be a separate unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0085] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A display device, characterized in that: include: A backlight module (100) comprising a plurality of light-emitting units (140) arranged in an array; A liquid crystal module (200) covering the light-emitting unit (140) in the first area (110) of the backlight module; The light-emitting unit (140) in the second area (120) of the backlight module (100) is outside the coverage of the liquid crystal module (200); and the first area (110) is adjacent to the second area (120).

2. The display device according to claim 1, characterized in that The backlight module (100) comprises a first driving module (410) and a second driving module (420); The first driving module (410) is used to drive the light-emitting unit (140) in the first area (110) of the backlight module (100); The second driving module (420) is used to drive the light-emitting unit (140) in the second area (120) of the backlight module (100).

3. The display device according to claim 2, characterized in that: The first driving module (410) includes a plurality of first driving circuits (310), and the second driving module (420) includes a plurality of second driving circuits (320); the first driving circuit (310) is different from the second driving circuit (320).

4. The display device according to claim 2, characterized in that: The backlight module (100) further comprises a backlight substrate (130); The plurality of light-emitting units arranged in an array are arranged on the first surface of the backlight substrate (130); The first driving module (410) and the second driving module (420) are arranged on the second surface of the backlight substrate (130); the first surface and the second surface are two opposite surfaces of the backlight substrate (130).

5. The display device according to claim 4, characterized in that: The backlight substrate (130) comprises at least one of a printed circuit board and a glass substrate.

6. The display device according to any one of claims 1 to 5, characterized in that: The light-emitting unit (140) in the first area (110) of the backlight module (100) comprises an LED chip group and a first packaging layer covering the LED chip group.

7. The display device according to claim 6, characterized in that: The light-emitting unit (140) in the second area (120) of the backlight module (100) comprises an LED chip group and a second packaging layer covering the LED chip group; the transmittance of the first packaging layer is greater than the transmittance of the second packaging layer.

8. The display device according to any one of claims 1 to 5, characterized in that: The backlight module (100) further comprises a plurality of isolation structures (400); the isolation structure (400) is located between two adjacent light-emitting units (140).

9. The display device according to claim 6, characterized in that: The LED chip set at least includes a red chip, a green chip and a blue chip.

10. The display device according to any one of claims 1 to 5, characterized in that: The display device further comprises a glass cover plate (510) and a housing (520); the backlight module (100) and the liquid crystal module (200) are arranged between the glass cover plate (510) and the housing (520); the glass cover plate (510) and the housing (520) are used to encapsulate the backlight module (100) and the liquid crystal module (200).

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