TW200703187A - Liquid crystal display and method of enhancing frame contrast ratio thereof - Google Patents
Liquid crystal display and method of enhancing frame contrast ratio thereofInfo
- Publication number
- TW200703187A TW200703187A TW094122918A TW94122918A TW200703187A TW 200703187 A TW200703187 A TW 200703187A TW 094122918 A TW094122918 A TW 094122918A TW 94122918 A TW94122918 A TW 94122918A TW 200703187 A TW200703187 A TW 200703187A
- Authority
- TW
- Taiwan
- Prior art keywords
- inverter
- controller
- contrast ratio
- frame
- modulation signal
- Prior art date
Links
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
A liquid crystal display (LCD) and method of enhancing frame contrast ratio thereof are provided. The LCD includes an LCD panel, a backlight module, a controller, a first inverter and a second inverter. The controller receives an image signal and outputs a display signal. The controller obtains a frame with several blocks according to the image signal. The controller determines the brightness of the blocks and outputs a first modulation signal and a second modulation signal. The LCD panel electrically connected to the controller receives the display signal and displays the frame. The backlight module having several lamps is for providing light to the LCD panel. Each lamp has a first end and a second end. The first ends and the second ends correspond to the blocks. The first inverter and the second inverter electrically connected to the controller are electrically connected to the first ends and the second ends, respectively. The first inverter and the second inverter respectively receive the first modulation signal and the second modulation signal and respectively modulate the first ends and the second ends, enabling the luminance of the first end or the second end corresponding to each block corresponds to the brightness of the block. Therefore, the contrast ratio of the frame is enhanced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW094122918A TWI339825B (en) | 2005-07-06 | 2005-07-06 | Liquid crystal display and method of enhancing frame contrast ratio thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW094122918A TWI339825B (en) | 2005-07-06 | 2005-07-06 | Liquid crystal display and method of enhancing frame contrast ratio thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200703187A true TW200703187A (en) | 2007-01-16 |
TWI339825B TWI339825B (en) | 2011-04-01 |
Family
ID=55855712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094122918A TWI339825B (en) | 2005-07-06 | 2005-07-06 | Liquid crystal display and method of enhancing frame contrast ratio thereof |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI339825B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI394130B (en) * | 2008-03-26 | 2013-04-21 | Au Optronics Corp | Lcd and backlight module thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI595288B (en) * | 2016-12-05 | 2017-08-11 | 友達光電股份有限公司 | Display and control method thereof |
-
2005
- 2005-07-06 TW TW094122918A patent/TWI339825B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI394130B (en) * | 2008-03-26 | 2013-04-21 | Au Optronics Corp | Lcd and backlight module thereof |
Also Published As
Publication number | Publication date |
---|---|
TWI339825B (en) | 2011-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8482509B2 (en) | Method of driving a display apparatus to compensate for uneven backlighting | |
CN100492478C (en) | Display apparatus for controlling the brightness values of a plurality of light sources and method of controlling the same | |
TWI459092B (en) | Liquid crystal display and scanning back light driving method thereof | |
US20100321417A1 (en) | Display device and projection display device | |
TWI263838B (en) | Backlight assembly and liquid crystal display apparatus | |
KR101026800B1 (en) | Liquid crystal device, driving device and method of light source for display device | |
TWI412837B (en) | Flat display, backlight module and driving method thereof | |
TW200729119A (en) | Liquid crystal display and driving method thereof | |
US20070109252A1 (en) | Methods and devices for driving a display backlight, and display apparatus having a backlight driving device | |
CN101908325A (en) | Liquid crystal display | |
CN104613384A (en) | Backlight module | |
WO2015096237A1 (en) | Liquid crystal display apparatus, backlight source thereof, and dimming method therefor | |
RU2011110068A (en) | IMAGE DISPLAY DEVICE, TV RECEIVER, METHOD FOR DISPLAYING AN IMAGE DISPLAY DEVICE AND METHOD FOR CONTROLLING A TV RECEIVER | |
KR20050101060A (en) | Field sequential color lcd and driving method thereof | |
TW200613832A (en) | Module and method for controlling a backlight module and lcd for thereof | |
KR101213898B1 (en) | Control device and method of backlight of liquid crystal display device | |
KR20080039718A (en) | Control device and method of backlight of liquid crystal display device | |
TW200703187A (en) | Liquid crystal display and method of enhancing frame contrast ratio thereof | |
KR101840875B1 (en) | Liquid crystal display device and method for driving the same | |
TW200725104A (en) | Backlight module and liquid crystal display using the same | |
KR20040106047A (en) | Back-Light Unit And Liquid Crystal Display Device Having The Same | |
US8896788B2 (en) | Liquid crystal display | |
KR101354277B1 (en) | Driving circuit of liquid crystal display, and driving method using the same | |
KR20080043431A (en) | Field sequential color mode lcd device | |
TW200604620A (en) | Impulse backlight system and a flat display using the same |