CN201957154U - Liquid crystal display television set - Google Patents
Liquid crystal display television set Download PDFInfo
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- CN201957154U CN201957154U CN2010206508700U CN201020650870U CN201957154U CN 201957154 U CN201957154 U CN 201957154U CN 2010206508700 U CN2010206508700 U CN 2010206508700U CN 201020650870 U CN201020650870 U CN 201020650870U CN 201957154 U CN201957154 U CN 201957154U
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- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 27
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Liquid Crystal Display Device Control (AREA)
Abstract
The utility model relates to a liquid crystal display television set, which comprises a master control chip central processing unit (CPU) module, a power supply module, an antenna and signal processing module, a sound effect module, a universal serial bus (USB) interface module and a first display screen module. The liquid crystal display television set is characterized in that the liquid crystal display television set additionally comprises a second display screen module, a first switching module which is connected with the first display screen module, a second switching module which is connected with the control antenna and signal processing module, and a third switching module which is connected with the second display screen module; and when the television set plays moving picture experts group audio layer-3 (MP3) music, the master control chip CPU module controls the first switching module and the second switching module to be disconnected and the third switching module to be connected. When the liquid crystal display television set disclosed by the utility model works in a state in which video images are not required to be displayed, the power of a liquid crystal display screen, a demodulator and a tuner is cut off, a USB, a master control chip, an accompanying sound power amplifier circuit and a small display screen outside a shell are only allowed to work and therefore the goal of energy saving is achieved.
Description
Technical field the utility model relates to a kind of LCD TV machine.
Background technology is for the sustainable development of society, and the consumer should advocate the electronic product that uses energy-conserving and environment-protective, and enterprise should pioneer and invent, the product of production energy-conserving and environment-protective.Existing liquid crystal TV set all has USB to insert terminal, can connect to play the form music such as MP3 that are stored in the USB external equipment.When liquid crystal TV set was being play MP3 music in the USB external equipment, the liquid crystal display screen of television set did not play a role but is bright all the time, has wasted electric energy.
In the television set Overall Power Consumption, the power of liquid crystal display screen consumption accounts for about 60% of Overall Power Consumption, when the user uses liquid crystal TV set to play MP3 music or broadcast listening program, if liquid crystal display screen can be turned off, can reach the purpose of saves energy.
In the prior art, when television set is operated in the following time of state that does not need liquid crystal display screen, demodulator (Demodulator) and frequency modulator (Tuner) work, liquid crystal display screen, Demodulator and Tuner still in work, have consumed the electric energy that should not consume, and are unfavorable for energy-conserving and environment-protective.
Summary of the invention main purpose of the present utility model is to overcome the deficiencies in the prior art part, discloses a kind of LCD TV machine, when television set is operated in the state that does not need display video image, closes liquid crystal display screen and holding components thereof.
The utility model discloses a kind of LCD TV machine, comprise the main control chip CPU module that is used to control described TV set device co-ordination, the power supply module of power supply is provided for described TV set device, be used to receive the antenna and the signal processing module thereof of TV and broadcast singal, the audio module of handling and playing sound, be used to connect the usb interface module of external equipment, and first display panel module that is used to play television image;
Also comprise be used for the non-video operating state, by second display panel module of described main control chip CPU module controls and
Be connected in first switch module between described first display panel module and the power supply module;
Be connected in the second switch module between described antenna and signal processing module thereof and the power supply module;
Be connected in the 3rd switch module between described second display panel module and the power supply module;
When described TV set device worked in the MP3 music of playing in the external equipment that connects on the described usb interface module, described first switch module of described main control chip CPU module controls and second switch module disconnected, and the 3rd switch module connects;
When described TV set device worked in video broadcasting condition, described first switch module of described main control chip CPU module controls was connected with the second switch module, and described the 3rd switch module disconnects.
The disclosed TV set device of the utility model comprises backlight power supply module and T-CON supply module in described first display screen; Comprise the mains switch SW1 that is connected between described power supply module and the described backlight power supply module in described first switch module, and be connected the mains switch SW2 between described power supply module and the described T-CON supply module; When described first switch module disconnected or connect, described power switching module SW1 also disconnected with SW2 or is connected.
The disclosed TV set device of the utility model, described antenna and signal processing module thereof further comprise demodulator module and antenna and tuner module; Described second switch module comprises the mains switch SW3 that is connected between described power supply module and the demodulator module, and is connected the mains switch SW4 between described power supply module and antenna and the tuner module; When described second switch module disconnected or connect, described power switching module SW3 also disconnected with SW4 or is connected.
And when described TV set device worked in the aerial signal broadcast state of non-video, described first switch module of described main control chip CPU module controls disconnected, the 3rd switch module connects; With, the described mains switch SW4 of described main control chip CPU module controls connects, and described mains switch SW3 disconnects; Thereby described demodulator module quits work, but described antenna and tuner module work.
The disclosed TV set device of the utility model, described second display panel module further comprises low pressure difference linear voltage regulator LDO_3, LCD drive circuit and small display module.
The disclosed a kind of TV set device of the utility model, when being operated in the state that does not need display video image, the power supply that can turn off liquid crystal display screen, Demodulator and Tuner selectively, only allow USB, main control chip, audio power amplifier circuit and be positioned at small display work on the shell, reach purpose of energy saving.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
The schematic appearance of Fig. 2 TV set device of the present utility model.
Fig. 3 is a circuit theory schematic diagram of the present utility model.
Embodiment is described in further detail the utility model below in conjunction with the drawings and specific embodiments.
As previously mentioned, in the prior art,, control and management is not carried out in the power supply of liquid crystal display screen, Demodulator and Tuner, can't be reached purpose of energy saving when television set is operated in when playing MP3 music or other and not needing state that video image shows.And be operated in the liquid crystal TV set of playing MP3 music or broadcast state, can not show the operating states such as playing progress rate, broadcasting frequency audio of MP3.
Be illustrated in figure 1 as the circuit block diagram of television set of the present utility model, comprise main control chip CPU module, power supply module, antenna and signal processing module, audio module, usb interface module, and first display panel module and second display panel module.
TV set device of the present invention can saves energy main points be, adopt first switch module to control the power supply of first display panel module; Adopt the power supply of second switch module controls antenna and signal processing module; Adopt the 3rd switch module to control the power supply of second display panel module.Above-mentioned first switch module, second switch module and the 3rd switch module all are connected the power supply module, and co-ordination under the control of main control chip CPU module.
When main control chip CPU module works in the operating state that video image plays at television set, open first switch module and second switch module, make antenna and signal processing module and the first display panel module operate as normal; Close the 3rd switch module simultaneously, second display panel module is not worked.When working in the operating state of non-video images broadcasts such as music or radio station broadcast state when television set, close first switch module, thereby the display panel module of winning is closed, conserver power source; But open the 3rd switch module, thereby use second display screen to assist the demonstration of operating states such as MP3 music or radio station broadcast broadcast, and be convenient to user's control; And when working on the MP3 music state, second switch is closed, and antenna and signal processing module are stopped power supply, and the USB external equipment that stores the data of relevant MP3 music is connected on the usb interface module; Perhaps when working in the station broadcast state, second switch is opened, and antenna and signal processing module receive and handle broadcast message.
Be illustrated in figure 2 as the schematic appearance of TV set device of the present utility model, comprise two display screens, first display screen is the television display screen that displaying video programs uses; Second display screen is a small display below first display screen, under the control of main control chip, is used for showing the information content such as playing progress rate, volume of music format signals such as USB device MP3; Perhaps be used for information such as the channel of broadcast program and volume.Small display also can be positioned at other position of television set.
Be illustrated in figure 3 as circuit theory diagrams of the present utility model; Comprise main control chip, switch power module has the liquid crystal display screen module of T-CON supply module and backlight power supply module, audio power amplifier module, demodulation module Demodulator, antenna and tuner module, LDO_1 module, LDO_2 module; The USB input terminal; And, small display module, LCD drive circuit module, LDO_3 module.Also comprise the mains switch SW1 that is used to control the backlight power supply module, be used to control the mains switch SW2 of T-con supply module; Be used to control the mains switch SW3 of LDO_1, be used to control the mains switch SW4 of LDO_2; And the mains switch SW5 that is used to control small display.Above-mentioned LDO is low dropout regulator, means low pressure difference linear voltage regulator.
As shown in Figure 3, when liquid crystal TV set is being play among the USB MP3 music, main control chip is by the switch SW of cutting off the electricity supply _ 1, SW_2, SW_3, SW_4, height (or low) level signal of output, but connect mains switch SW_5, thereby the small display system on main control chip system, the fore shell, the power supply of audio system are only kept in the power supply of turning off liquid crystal display screen, Demodulator and Tuner.
Liquid crystal TV set is in playing USB during the MP3 music, because liquid crystal display screen, Demodulator and Tuner consumed power not, therefore works in MP3 music pattern following time, can economize on electricity 60%.
Liquid crystal TV set is in playing USB during the MP3 music, pass through main control chip, the power supply of having turned off liquid crystal display screen, Demodulator and Tuner, main control chip is by the display screen on the bus SDA/SCL control fore shell, makes display screen on the fore shell show the contents such as content, playing progress rate, volume of MP3 music among the USB.The bus SDA/SCL here is the holding wire of I2C bus, and SDA is a bidirectional data line, and SCL is clock line SCL.Transmit data on the I2C bus, at first send highest order, send enabling signal by main frame, SDA is a low level by the high level saltus step between the SCL high period, is sent the data of a byte then by main frame.Data Transfer Done sends stop signal by main frame, and SDA is a high level by low transition between the SCL high period.
As shown in Figure 3, when LCD TV machine of the present utility model during in broadcast state, main control chip is by height (or low) level signal of the switch SW of cutting off the electricity supply _ 1, SW_2 output, but connect mains switch SW_3, SW_4, SW_5, thus by main control chip, turned off the power supply of liquid crystal display screen, Demodulator, have only antenna and tuner module and little LCDs work, play broadcast singal by audio system.
The control circuit of the present invention by accompanying drawing 3, during the MP3 music, the power supply of turning off liquid crystal display screen, Demodulator and Tuner can be saved 60% of Overall Power Consumption, arrives the purpose of energy-conserving and environment-protective in playing USB.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. LCD TV machine, comprise the main control chip CPU module that is used to control described TV set device co-ordination, the power supply module of power supply is provided for described TV set device, be used to receive the antenna and the signal processing module thereof of TV and broadcast singal, the audio module of handling and playing sound, be used to connect the usb interface module of external equipment, and first display panel module that is used to play television image; It is characterized in that:
Also comprise be used for the non-video operating state, by second display panel module of described main control chip CPU module controls and
Be connected in first switch module between described first display panel module and the power supply module;
Be connected in the second switch module between described antenna and signal processing module thereof and the power supply module;
Be connected in the 3rd switch module between described second display panel module and the power supply module;
When described TV set device worked in the MP3 music of playing in the external equipment that connects on the described usb interface module, described first switch module of described main control chip CPU module controls and second switch module disconnected, and the 3rd switch module connects;
When described TV set device worked in video broadcasting condition, described first switch module of described main control chip CPU module controls was connected with the second switch module, and described the 3rd switch module disconnects.
2. TV set device as claimed in claim 1 is characterized in that:
Comprise backlight power supply module and T-CON supply module in described first display screen;
Comprise the mains switch SW1 that is connected between described power supply module and the described backlight power supply module in described first switch module, and be connected the mains switch SW2 between described power supply module and the described T-CON supply module;
When described first switch module disconnected or connect, described power switching module SW1 also disconnected with SW2 or is connected.
3. TV set device as claimed in claim 2 is characterized in that:
Described antenna and signal processing module thereof further comprise demodulator module and antenna and tuner module;
Described second switch module comprises the mains switch SW3 that is connected between described power supply module and the demodulator module, and is connected the mains switch SW4 between described power supply module and antenna and the tuner module; When described second switch module disconnected or connect, described power switching module SW3 also disconnected with SW4 or is connected.
4. TV set device as claimed in claim 3 is characterized in that, when described TV set device worked in the aerial signal broadcast state of non-video, described first switch module of described main control chip CPU module controls disconnected, the 3rd switch module connects; With
The described mains switch SW4 of described main control chip CPU module controls connects, and described mains switch SW3 disconnects; Thereby described demodulator module quits work, but described antenna and tuner module work.
5. TV set device as claimed in claim 4 is characterized in that, described second display panel module further comprises low pressure difference linear voltage regulator LDO_3, LCD drive circuit and small display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206508700U CN201957154U (en) | 2010-12-03 | 2010-12-03 | Liquid crystal display television set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206508700U CN201957154U (en) | 2010-12-03 | 2010-12-03 | Liquid crystal display television set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201957154U true CN201957154U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206508700U Expired - Fee Related CN201957154U (en) | 2010-12-03 | 2010-12-03 | Liquid crystal display television set |
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| Country | Link |
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| CN (1) | CN201957154U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026244A1 (en) * | 2014-08-21 | 2016-02-25 | 深圳Tcl新技术有限公司 | Television control circuit and television |
| CN105572932A (en) * | 2016-02-23 | 2016-05-11 | 武汉华星光电技术有限公司 | Liquid crystal display and electronic equipment |
| CN103974119B (en) * | 2013-01-31 | 2018-12-14 | 三星电子株式会社 | Sink device, source device, functional block control system and its control method |
| CN109040634A (en) * | 2018-10-19 | 2018-12-18 | 深圳Tcl新技术有限公司 | Television set and USB device method of supplying power to |
| CN109814820A (en) * | 2018-12-19 | 2019-05-28 | 努比亚技术有限公司 | A kind of terminal, terminal control method and computer readable storage medium |
-
2010
- 2010-12-03 CN CN2010206508700U patent/CN201957154U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103974119B (en) * | 2013-01-31 | 2018-12-14 | 三星电子株式会社 | Sink device, source device, functional block control system and its control method |
| WO2016026244A1 (en) * | 2014-08-21 | 2016-02-25 | 深圳Tcl新技术有限公司 | Television control circuit and television |
| US9654722B2 (en) | 2014-08-21 | 2017-05-16 | Shenzhen Tcl New Technology Co., Ltd | Television control circuit and television |
| CN105572932A (en) * | 2016-02-23 | 2016-05-11 | 武汉华星光电技术有限公司 | Liquid crystal display and electronic equipment |
| WO2017143630A1 (en) * | 2016-02-23 | 2017-08-31 | 武汉华星光电技术有限公司 | Liquid crystal display and electronic device |
| US10019957B2 (en) | 2016-02-23 | 2018-07-10 | Wuhan China Star Optoelectronics Technology Co., Ltd | Liquid crystal display and electronic device |
| CN109040634A (en) * | 2018-10-19 | 2018-12-18 | 深圳Tcl新技术有限公司 | Television set and USB device method of supplying power to |
| CN109814820A (en) * | 2018-12-19 | 2019-05-28 | 努比亚技术有限公司 | A kind of terminal, terminal control method and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20131203 |