CN211014943U - Display device - Google Patents
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- CN211014943U CN211014943U CN201922349422.0U CN201922349422U CN211014943U CN 211014943 U CN211014943 U CN 211014943U CN 201922349422 U CN201922349422 U CN 201922349422U CN 211014943 U CN211014943 U CN 211014943U
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 22
- 230000002349 favourable effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 9
- 239000012788 optical film Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The embodiment of the utility model provides a relate to and show technical field, disclose a display device. The display device includes a liquid crystal display panel; the direct type backlight module is arranged on the back surface of the liquid crystal display panel; the lateral entrance type backlight module is arranged on the lateral surface of the liquid crystal display panel; the switching control module is electrically connected with the direct type backlight module and the side-in type backlight module, and can control the direct type backlight module to work or control the side-in type backlight module to work. Compared with the prior art, the embodiment of the utility model provides a not only be favorable to reducing display device's consumption, side income formula backlight unit and straight following formula backlight unit work in turn moreover is favorable to prolonging backlight unit's life.
Description
Technical Field
The embodiment of the utility model provides a relate to and show technical field, especially relate to a display device.
Background
With the development of display technology, display devices are developing towards high quality display and low power consumption, and have great significance in the display field.
In the prior art, a liquid crystal display device includes a liquid crystal display panel composed of color filters, thin film transistors and liquid crystal molecules, and a backlight module providing a light source, the backlight module mostly uses light emitting diodes (L light-emitting diode, &ttttranslation = L "&tttl &/t &ttted) as a backlight source to obtain better display colors, the backlight module is divided into a direct type backlight module and a side type backlight module according to the position of the light source, wherein the direct type backlight module has a function of dynamically adjusting contrast, and in order to improve the contrast adjustment, the direct type backlight module includes a large number of L ED., whereas when the direct type backlight module performs low contrast display, a large number of L EDs emit light simultaneously, so that the power consumption of the display device is large.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a display device to reduce and show the consumption.
In order to achieve the technical purpose, the embodiment of the utility model provides a following technical scheme:
a display device includes a liquid crystal display panel;
the direct type backlight module is arranged on the back surface of the liquid crystal display panel;
the lateral entrance type backlight module is arranged on the lateral surface of the liquid crystal display panel;
the switching control module is electrically connected with the direct type backlight module and the side-in type backlight module, and can control the direct type backlight module to work or control the side-in type backlight module to work.
Optionally, the switching control module includes a switching control circuit board, and the switching control circuit board includes: the first driving submodule, the second driving submodule and the switch are connected;
the first driving sub-module comprises an input end and an output end, the input end of the first driving sub-module is electrically connected with the switch, and the output end of the first driving sub-module is electrically connected with the direct type backlight module;
the second drive submodule comprises an input end and an output end, the input end of the second drive submodule is electrically connected with the switch, and the output end of the second drive submodule is electrically connected with the side-in type backlight module.
Optionally, the direct type backlight module includes direct type L ED lamp plate and L ED control circuit board, the output of first drive submodule piece with L ED control circuit board electricity is connected, first drive submodule piece can to L ED control circuit board sends drive signal.
Optionally, the side-in backlight module includes a side-in L ED light bar and a control interface, an output end of the second driving sub-module is electrically connected to the control interface, and the second driving sub-module can send a driving signal to the control interface.
Optionally, the direct type backlight module includes direct type L ED lamp plate, direct type L ED lamp plate is including being a plurality of miniature L ED that the array was arranged.
Optionally, the direct-type backlight module further includes L ED control circuit board, and the L ED control circuit board can control the micro L ED to be lighted in different regions.
Optionally, the side-in backlight module comprises a side-in L ED light bar, the side-in L ED light bar comprises a plurality of L ED, and the L ED is a top-emitting L ED.
Optionally, the side-in backlight module comprises a side-in L ED light bar, the side-in L ED light bar comprises a plurality of L ED, and the L ED is a side-emitting L ED.
Optionally, the backlight module further comprises a light guide plate, wherein the light guide plate is arranged between the liquid crystal display panel and the direct type backlight module;
the side-in backlight module is arranged at the end part of the light guide plate.
Optionally, a distance between the direct type backlight module and the light guide plate is greater than or equal to 3 mm.
The embodiment of the utility model provides a through setting up switching control module directly following formula backlight unit and side income formula backlight unit control, when the luminance that needs whole backlight source is equal, open side income formula backlight unit, close straight following formula backlight unit; when a picture with higher contrast needs to be displayed, the direct type backlight module is opened, and the side type backlight module is closed. The embodiment of the utility model provides a set up like this, not only be favorable to reducing display device's consumption, side income formula backlight unit and straight following formula backlight unit work in turn moreover is favorable to prolonging backlight unit's life.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a curve showing the variation of the luminance of L ED with current according to an embodiment of the present invention;
fig. 3 is a graph illustrating the variation of current L ED with voltage according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second display device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third display device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fourth display device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fifth display device according to an embodiment of the present invention.
In the drawings, the features represented by the respective reference numerals are listed below:
the backlight module comprises a 100-direct type backlight module, a 200-side type backlight module, a 300-switching control module, a 110-direct type L ED lamp panel, a 120-L ED control circuit board, a 210-side type L ED lamp strip, a 220-control interface, a 211-side type L ED lamp, a 212-driving circuit board, a 301-switching control circuit board, a 310-first driving sub-module, a 320-second driving sub-module, a 330-switch, a 400-light guide plate, a 500-optical film, a 600-light reflecting sheet, a 700-rear cover, an 800-frame and a 900-liquid crystal display panel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
An embodiment of the utility model provides a display device. Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention. Referring to fig. 1, the display device further includes: the liquid crystal display device comprises a liquid crystal display panel, a direct type backlight module 100, a side type backlight module 200 and a switching control module 300. The direct type backlight module 100 is disposed on the back of the liquid crystal display panel; the side-in backlight module 200 is disposed on a side surface of the liquid crystal display panel. The switching control module 300 is electrically connected to the direct type backlight module 100, the switching control module 300 is electrically connected to the edge type backlight module 200, and the switching control module 300 can control the direct type backlight module 100 to work or control the edge type backlight module 200 to work.
The display device has different display pictures in the process of displaying, for example, in an entertainment mode, the display device displays videos or pictures; in the text mode, the display device displays text. Switching control module 300 can control the work of straight following formula backlight unit 100 or control the work of side income formula backlight unit 200, that is to say, the embodiment of the utility model provides an adopted straight following formula backlight unit 100 or adopted side income formula backlight unit 200 to provide the backlight as required. Illustratively, in the entertainment mode, the switching control module 300 controls the direct-type backlight module 100 to operate, and the display device is provided with a backlight source by the direct-type backlight module 100; in the text mode, the switching control module 300 controls the lateral backlight module 200 to operate, and the lateral backlight module 200 provides a backlight source for the display device. The embodiment of the utility model provides a set up like this, be favorable to reducing display device's consumption. The specific analysis is as follows:
the direct type backlight module 100 includes a direct type L ED lamp panel 110, and the side type backlight module 200 includes a side type L ED lamp strip 210. that is, both the direct type backlight module 100 and the side type backlight module 200 adopt L ED as backlight source, fig. 2 is a graph illustrating that the luminance of a L ED changes with current, and fig. 3 is a graph illustrating that the current of a L ED changes with voltage, see fig. 2 and fig. 3, the forward voltage VF of a L ED is generally above 2V, when the current I is less than 1mA, the forward voltage VF does not change greatly, the luminous efficiency is increased linearly with the increase of current, however, when the current I of a L ED is less than 0.5mA, the L ED is unstable, the flicker and the overall display quality of the display device is reduced, therefore, the current of a L ED is required to be maintained above 0.5mA, for the direct type backlight module 100, the number of L arranged thereon is more than 0.e., when the number of leds is larger, the number of leds L is larger, and the display quality of the display device is easily reduced by the phase-to display quality of phase-to be displayed by the phase-to be displayed in the same manner as the phase-to be displayed.
In the text mode, if the direct type backlight module 100 is still used for providing a light source, the luminance of all the ED L EDs of the direct type backlight module 100 is required to be the same, when the display picture is in a low luminance state, all L EDs are in low current conduction, L ED is unstable, the display picture flickers, when the display picture is in a high luminance state, all L EDs are in high current conduction, the parameter pairs of the direct type backlight module 100 and the side type backlight module 200 are shown in table 1, and the performance pairs of the direct type backlight module 100 and the side type backlight module 200 are shown in table 2.
TABLE 1
TABLE 2
| Comprehensive comparison | Entertainment mode | Text mode |
| Direct type backlight module | Low power consumption and high contrast | High power consumption and high contrast |
| Side-in type backlight module | High power consumption and low contrast | Low power consumption and low contrast |
As can be seen from tables 1 and 2, under the conditions of the same brightness and the same transmittance, the power consumption of the side-in backlight module 200 is lower, and in addition, the side-in backlight module 200 can satisfy the display contrast in the text mode. Therefore, the embodiment of the present invention provides the switching control module 300 to control the direct-type backlight module 100 and the side-in type backlight module 200, and when the brightness of the whole backlight source is required to be equal, the side-in type backlight module 200 is opened, and the direct-type backlight module 100 is closed; when a picture with high contrast needs to be displayed, the direct type backlight module 100 is turned on, and the side type backlight module 200 is turned off. The embodiment of the utility model provides a set up like this, not only be favorable to reducing display device's consumption, the work in turn of side income formula backlight unit 200 and straight following formula backlight unit 100 is favorable to prolonging backlight unit's life moreover.
Fig. 4 is a schematic structural diagram of a second display device according to an embodiment of the present invention. Referring to fig. 4, on the basis of the above embodiments, optionally, the switching control module 300 includes a switching control circuit board 301, the switching control circuit board 301 is disposed in the housing of the display device, and exemplarily, the switching control circuit board 301 is disposed on the back surface of the direct type backlight module 100. The switching control circuit board 301 includes: a first driver sub-module 310, a second driver sub-module 320, and a switch 330. The first driving sub-module 310 comprises an input end and an output end, the input end of the first driving sub-module 310 is electrically connected with the switch 330, and the output end of the first driving sub-module 310 is electrically connected with the direct type backlight module 100; the second driving sub-module 320 includes an input end and an output end, the input end of the second driving sub-module 320 is electrically connected to the switch 330, and the output end of the second driving sub-module 320 is electrically connected to the side-in backlight module 200.
The switch 330 may be, for example, a push button switch 330 or a dial switch 330. For example, the switch 330 may be disposed at a side of the display device, an opening is disposed at a position of the housing of the display device corresponding to the switch 330, a button or a dial of the switch 330 is located in the opening, and a user may press or toggle the switch 330 as needed during use to select the direct-type backlight module 100 or the side-type backlight module 200. Illustratively, when a user watches videos or enjoys pictures, the user presses or toggles the switch 330 to select the direct-type backlight module 100 for use, so as to improve the viewing experience; when the user chats or watches a novel, the user presses or toggles the switch 330 to select the lateral backlight module 200 to reduce power consumption and save the power of the display device.
With reference to fig. 4, based on the above embodiments, optionally, the direct-type backlight module 100 includes direct-type L ED lamp panels 110 and L ED control circuit boards 120, an output end of the first driving sub-module 310 is electrically connected to the L0 ED control circuit board 120, and the first driving sub-module 310 can send a driving signal to the L ED control circuit board 120, where the L ED control circuit board 120 may be, for example, a flexible circuit board, the L ED control circuit board 120 can control the light emitting brightness of the L ED on the direct-type L ED lamp panel 110, and preferably, the L ED control circuit board 120 can also control the direct-type L ED lamp panel 110 to realize area control, that is, control L ED of different areas to display different brightness, and improve the contrast of a display image.
With reference to fig. 4, based on the above embodiments, optionally, the side-in type backlight module 200 includes a side-in type L ED light bar 210 and a control interface 220, an output end of the second driving sub-module 320 is electrically connected to the control interface 220, and the second driving sub-module 320 can send a driving signal to the control interface 220, where the control interface 220 receives the control signal output by the second driving sub-module 320 and controls light emitting brightness of each L ED in the side-in type L ED light bar 210.
It should be noted that, in the above embodiment, it is exemplarily shown that the switching control module 300 includes the switching control circuit board 301, and the switching control circuit board 301 is provided with the first driving sub-module 310, the second driving sub-module 320 and the switch 330, which is not a limitation of the present invention, in other embodiments, the switching control module 300 may further include a driving chip, and the driving chip may determine the display mode of the current display picture according to the signal output by the processor, so as to automatically switch the operation of the direct type backlight module 100 or the operation of the side type backlight module 200. In practical application, the setting can be carried out according to the requirement.
With reference to fig. 4, based on the above embodiments, optionally, the direct-type backlight module 100 includes a direct-type L ED lamp panel 110, and the direct-type L ED lamp panel 110 includes a plurality of L ED. arranged in an array, where L ED may be micro L ED or Mini L ED, and the size of each of the micro L ED is less than 0.4mm × 0.2.2 mm.
Fig. 5 is a schematic structural diagram of a third display device according to an embodiment of the present invention, see fig. 5, on the basis of the above embodiments, optionally, the direct type backlight module 100 further includes L ED control circuit board 120, the L ED control circuit board 120 can control the luminance of L ED on the direct type L ED lamp board 110, and realize area control, wherein, fig. 5 exemplarily shows that the number of L ED lamp boards of the direct type backlight module 100 is two, two L ED lamp boards are respectively provided with L ED control circuit boards 120 correspondingly, so as to reduce the control difficulty of the L ED control circuit boards 120.
Referring to fig. 6, on the basis of the foregoing embodiments, optionally, the side-in type backlight module 200 includes a side-in type L ED light bar 210, the side-in type L ED light bar 210 includes a plurality of side-in type L ED lights 211 and a driving circuit board 212, the side-in type L ED light bar 211 is a side light-emitting L ED, the side-in type L ED light bar 211 is disposed on the driving circuit board 212, and a light-emitting direction of the side light-emitting L ED is from a side of the driving circuit board 212.
Referring to fig. 7, on the basis of the foregoing embodiments, optionally, the side-in type backlight module 200 includes a side-in type L ED light bar 210, the side-in type L ED light bar 210 includes a plurality of side-in type L ED light bars 211, the side-in type L ED light bar 211 is a top light L ED., the side-in type L ED light bar 210 includes a driving circuit board 212 and a side-in type L ED light bar 211, the side-in type L ED light bar 211 is disposed on the driving circuit board 212, and a light emitting direction of the top light L ED is light emitted from the top of the driving circuit board 212.
With reference to fig. 7, based on the above embodiments, optionally, the display device further includes a light guide plate 400, and the light guide plate 400 is disposed between the liquid crystal display panel 900 and the direct-type backlight module 100. The side-in backlight module 200 is disposed at an end of the light guide plate 400. The light guide plate 400 is used for uniformly emitting light emitted from the lateral backlight module 200 to the liquid crystal display panel.
With reference to fig. 7, in addition to the above embodiments, optionally, the distance OD between the direct type backlight module 100 and the light guide plate 400 is greater than or equal to 3 mm. Wherein, distance OD between straight following formula backlight unit 100 and the light guide plate 400 is called mixed light distance, the embodiment of the utility model provides a set up mixed light distance more than or equal to 3mm, be favorable to avoiding the light and shade that straight following formula backlight unit 100 sent alternate. Preferably, the distance OD between the direct type backlight module 100 and the light guide plate 400 is greater than or equal to 6mm to further avoid the backlight light source with alternate light and dark.
With reference to fig. 6 and fig. 7, on the basis of the foregoing embodiments, optionally, the display device further includes: the backlight module comprises an optical film 500 disposed on one side of the light guide plate 400 far away from the direct type backlight module 100, a reflective sheet 600 disposed on an end of the direct type backlight module 100, a rear cover 700 disposed at a bottom of the display device, a frame 800 disposed at a side of the display device, and a frame sealing adhesive 810 for sealing the liquid crystal display panel 900 and the frame 800.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. 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 with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A display device includes a liquid crystal display panel, and is characterized by further comprising:
the direct type backlight module is arranged on the back surface of the liquid crystal display panel;
the lateral entrance type backlight module is arranged on the lateral surface of the liquid crystal display panel;
the switching control module is electrically connected with the direct type backlight module and the side-in type backlight module, and can control the direct type backlight module to work or control the side-in type backlight module to work.
2. The display device according to claim 1, wherein the switching control module includes a switching control circuit board including: the first driving submodule, the second driving submodule and the switch are connected;
the first driving sub-module comprises an input end and an output end, the input end of the first driving sub-module is electrically connected with the switch, and the output end of the first driving sub-module is electrically connected with the direct type backlight module;
the second drive submodule comprises an input end and an output end, the input end of the second drive submodule is electrically connected with the switch, and the output end of the second drive submodule is electrically connected with the side-in type backlight module.
3. The display device according to claim 2, wherein the direct type backlight module comprises a direct type L ED lamp panel and a L ED control circuit board, the output end of the first driving sub-module is electrically connected with the L ED control circuit board, and the first driving sub-module can send a driving signal to the L ED control circuit board.
4. The display device of claim 2, wherein the side-in backlight module comprises a side-in L ED light bar and a control interface, the output end of the second driving sub-module is electrically connected with the control interface, and the second driving sub-module can send a driving signal to the control interface.
5. The display device according to claim 1, wherein the direct-type backlight module comprises a direct-type L ED lamp panel, and the direct-type L ED lamp panel comprises a plurality of micro L ED arranged in an array.
6. The display device according to claim 5, wherein the direct-type backlight module further comprises L ED control circuit board, and the L ED control circuit board is capable of controlling the plurality of micro L ED sub-regions to be lit up.
7. The display device of claim 1, wherein the side-in backlight module comprises a side-in L ED light bar, the side-in L ED light bar comprises a plurality of L ED, and the L ED is a top emission L ED.
8. The display device of claim 1, wherein the side-in backlight module comprises a side-in L ED light bar, the side-in L ED light bar comprises a plurality of L ED, and the L ED is a side-emitting L ED.
9. The display device according to claim 1, further comprising a light guide plate disposed between the liquid crystal display panel and the direct-type backlight module;
the side-in backlight module is arranged at the end part of the light guide plate.
10. The display device according to claim 9, wherein a distance between the direct type backlight module and the light guide plate is greater than or equal to 3 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922349422.0U CN211014943U (en) | 2019-12-24 | 2019-12-24 | Display device |
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| CN201922349422.0U CN211014943U (en) | 2019-12-24 | 2019-12-24 | Display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114660852A (en) * | 2022-05-25 | 2022-06-24 | 南京惠华电子技术有限公司 | Novel backlight assembly |
| WO2022222183A1 (en) * | 2021-04-20 | 2022-10-27 | 武汉华星光电技术有限公司 | Backlight module, vehicle-mounted display panel, and vehicle |
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2019
- 2019-12-24 CN CN201922349422.0U patent/CN211014943U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022222183A1 (en) * | 2021-04-20 | 2022-10-27 | 武汉华星光电技术有限公司 | Backlight module, vehicle-mounted display panel, and vehicle |
| CN114660852A (en) * | 2022-05-25 | 2022-06-24 | 南京惠华电子技术有限公司 | Novel backlight assembly |
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