CN2862084Y - Liquid crystal displaying device - Google Patents
Liquid crystal displaying device Download PDFInfo
- Publication number
- CN2862084Y CN2862084Y CN 200520121161 CN200520121161U CN2862084Y CN 2862084 Y CN2862084 Y CN 2862084Y CN 200520121161 CN200520121161 CN 200520121161 CN 200520121161 U CN200520121161 U CN 200520121161U CN 2862084 Y CN2862084 Y CN 2862084Y
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- Prior art keywords
- frequency
- lcd
- driving governor
- display panels
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- Expired - Lifetime
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Abstract
The utility model relates to a liquid crystal display (LCD), which comprises a LCD panel, a scanning driver connected to the LCD panel, a data driver connected to the LCD panel, a driving controller connected to both the scanning driver and data driver, and a light sensor connected to the driving controller and used for sensing external light signals. The LCD provided the utility model can automatically regulate the refresh frequency.
Description
[technical field]
The utility model relates to a kind of LCD.
[background technology]
At present, LCD has replaced conventional cathode ray tube (the Cathode Ray Tube that is used for counter gradually, CRT) display, and, because characteristics such as the liquid crystal display utensil is light, thin, little, make its be fit to very much be applied to desktop PC, laptop computer, personal digital assistant (Personal Digital Assistant, PDA), in portable phone, TV and multiple office automation and the audio-visual equipment.
Seeing also Fig. 1, is a kind of synoptic diagram of LCD 100 of prior art exposure.This LCD 100 comprises the display panels 140 that a driving governor 110, a data driver that links to each other with this driving governor 110 120, a scanner driver 130 that links to each other with this driving governor 110 and all link to each other with this data driver 120 and this scanner driver 130.This driving governor 110 is used to control this data driver 120 and this scanner driver 130, these scanner driver 130 output scanning signals are given this display panels 140, this data driver 120 outputs one picture signal is given this display panels 140, to be implemented in display image on this display panels 140.
Yet, the setting value of the refreshing frequency of this LCD 100 just is fixed in this driving governor 110 in the system end initialization, when the change in location of display and be in following time of external light source of different frequency, can't carry out one to refreshing frequency according to the frequency of external light source and regulate automatically, so that user's eyes are tired easily.
[utility model content]
Can't be necessary to provide a kind of LCD that can regulate refreshing frequency automatically according to the frequency of external light source to the problem that the LCD refreshing frequency automatically adjusts for solving.
A kind of LCD, it comprises the driving governor that a display panels, a scanner driver that links to each other with display panels, a data driver that links to each other with this display panels and all link to each other with this scanner driver and this data driver, this LCD also comprises the optical inductor of an induction external optical signals, and this optical inductor links to each other with this driving governor.
Compared to prior art, LCD of the present utility model can be adjusted the refreshing frequency of this LCD according to the Automatic Frequency of external light source.
[description of drawings]
Fig. 1 is the synoptic diagram of the LCD of prior art.
Fig. 2 is the synoptic diagram of LCD of the present utility model.
Fig. 3 is the synoptic diagram of the driving governor of Fig. 2.
Fig. 4 is the process flow diagram of the frequency adjusting method of LCD of the present utility model.
[embodiment]
Seeing also Fig. 2, is the synoptic diagram of the LCD 200 of the utility model one better embodiment.This LCD 200 comprises an optical inductor 210, a driving governor 220, a data driver 230, one scan driver 240 and a display panels 250.This optical inductor 210 is arranged in this display panels 250, and it can respond to the light signal of ambient light, and the light signal of sensing is sent to this driving governor 220.This driving governor 220 is accepted the external optical signals from these optical inductor 210 transmission, and detect the flicker frequency of this ambient light, adjust the refreshing frequency of this display panels 250 in view of the above, and provide timing control signal to this data driver 230 and this scanner driver 240.
Seeing also Fig. 3, is the synoptic diagram of this driving governor 220.This driving governor 220 comprises a signal processing unit 221, a frequency identification unit 222, a frequency adjustment unit 223 and a frequency control unit 224.This signal processing unit 221, this frequency identification unit 222, this frequency adjustment unit 223 and this frequency control unit 224 connect in regular turn.This signal processing unit 221 is connected to this optical inductor 210, and it is received from the external light source signal S that this optical inductor 210 sends
1, with external light source signal S
1Be converted into 222 the frequency signal S that can discern in this frequency identification unit
2, and with this frequency signal S
2Be sent to this frequency identification unit 222.This frequency identification unit 222 pairs of these frequency signals S
2Detect, judge signal frequency F
a, and with this signal frequency F
aBe sent to this frequency adjustment unit 223.This frequency adjustment unit 223 will be from the signal frequency F of this frequency identification unit 222
aBe converted to the refreshing frequency F of this LCD
s, and with this refreshing frequency F
sValue be sent to this frequency control unit 224.This frequency control unit 224 is exported two control signals respectively and is given this data driver 230 and scanner driver 240, thereby the refreshing frequency of this display panels 250 is adjusted into F
sFor example, when the flicker frequency of external light source is 50Hz, can the corresponding refreshing frequency of adjusting this display panels 250 be 67Hz.
The utility model is not limited to above-mentioned embodiment, and for example, this optical inductor also can be a plurality of, and its position is not limited to be positioned at this display panels, and it also can be positioned at other position of this display panels, as long as it can sense extraneous light frequency.
Compared to prior art, above-mentioned liquid crystal display 200 adopts this optical inductor 210 The flicker of induction ambient light, and by 220 pairs of these display panels of this driving governor 250 refreshing frequency is regulated, and can automatically regulate its refreshing frequency.
Claims (7)
1. LCD, it comprises the driving governor that a display panels, a scanner driver that links to each other with display panels, a data driver that links to each other with this display panels and all link to each other with this scanner driver and this data driver, it is characterized in that: this LCD also comprises the optical inductor of an induction external optical signals, and this optical inductor links to each other with this driving governor.
2. LCD as claimed in claim 1 is characterized in that: this driving governor can receive and identify the light signal of this optical inductor, and controls the refreshing frequency that this scanner driver and this data driver are adjusted this display panels.
3. LCD as claimed in claim 2 is characterized in that: this driving governor comprises a signal processing unit that is connected with this optical inductor, and this signal processing unit can receive and handle the signal of this optical inductor.
4. LCD as claimed in claim 3 is characterized in that: this driving governor further comprises a frequency identification unit that links to each other with this signal processing unit, and it can identify the flicker frequency of ambient light according to the signal of this signal processing unit output.
5. LCD as claimed in claim 4 is characterized in that: this driving governor further comprises the frequency adjustment unit that links to each other with this frequency identification unit, and it can be converted to the flicker frequency of ambient light the corresponding liquid crystal display refreshing frequency.
6. LCD as claimed in claim 5, it is characterized in that: this driving governor further comprises a frequency control unit that links to each other with this frequency adjustment unit, this scanner driver and this data driver, and this this scanner driver of frequency control unit may command and this data driver are to adjust the refreshing frequency of this display panels.
7. LCD as claimed in claim 1 is characterized in that: this optical inductor is arranged in this display panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121161 CN2862084Y (en) | 2005-12-23 | 2005-12-23 | Liquid crystal displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121161 CN2862084Y (en) | 2005-12-23 | 2005-12-23 | Liquid crystal displaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862084Y true CN2862084Y (en) | 2007-01-24 |
Family
ID=37659716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520121161 Expired - Lifetime CN2862084Y (en) | 2005-12-23 | 2005-12-23 | Liquid crystal displaying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2862084Y (en) |
-
2005
- 2005-12-23 CN CN 200520121161 patent/CN2862084Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070124 |
|
| EXPY | Termination of patent right or utility model |