Ultra-thin hot cathode fluorescent lamp of liquid crystal television

An LCD TV, ultra-thin technology, applied in the field of LCD TV ultra-thin hot cathode backlight, can solve the problems of difficult LCD TV backlight, difficult general lighting, low luminous efficiency, etc., to reduce the number of lamp tubes and reduce power consumption Effects of power, improving light efficiency and brightness

Inactive Publication Date: 2011-08-03
陈友余
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of cold cathode backlight (CCFL) are low brightness and low luminous efficiency, so it is difficult to be used for general lighting
The hot cathode lamp (HCFL) has high brightness an

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ultra-thin hot cathode fluorescent lamp of liquid crystal television
  • Ultra-thin hot cathode fluorescent lamp of liquid crystal television
  • Ultra-thin hot cathode fluorescent lamp of liquid crystal television

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] 1, figure 1 , The glass shell (1) of the lamp tube is made into a rectangle, the left and right ends of which are respectively installed with filament pins (4), and one end of the lamp tube is installed with a lamp controller (5), in the glass shell (1) of the lamp One side is plated with a layer of reflective coating (6), and the other side becomes the emitting surface of the light source, which is projected to the liquid crystal panel.

[0026] 2, figure 2 In the lamp glass shell (1), there are filament pins (4) installed on the left and right ends of the glass shell (1), and filaments (3) are installed at the left and right ends of the glass shell (1). The filaments are in multiple groups. If the number is equal, the number of pins is also equal; the cathode (2) surrounds the filament (3).

[0027] 3. image 3 In the middle, the tube plug-ins (7) at both ends of the tube are inserted into the filament pins (4) at both ends, and the wires (12) at both ends are connected ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an ultra-thin hot cathode fluorescent lamp (English abbreviation: T-HCFL) of a liquid crystal television. The section of a lamp tube has a rectangular or elliptical thin structure, so that a hot cathode lamp tube has larger tube diameter and working current and has the advantages of high light efficiency and high brightness, and the thickness of the thin hot cathode lamp tube is reduced; in order to prolong life, a multi-filament hot cathode mode is adopted, namely a plurality of filaments work together during work, but each filament is in a derated working state; or one filament works and other filaments are in a standby state; once discovering that the running filament is broken under the monitoring of a lamp tube controller, the filament is switched to the second, the third, ......, the nth filament to work; in order to reduce overall thickness of a backlight source, a light reflecting film can be coated on the back face of each lamp tube and a light reflecting plate is not required to be arranged; and since the light efficiency is higher than that of the cold cathode fluorescent lamp, the number of lamp tubes is reduced, the cost is lower than that of the conventional cold cathode fluorescent lamp and is much lower than that of a white LED (Light Emitting Diode) backlight source, and the power consumption of the liquid crystal television is obviously reduced.

Description

technical field [0001] The invention relates to a liquid crystal television backlight, in particular to an ultra-thin hot cathode backlight for a liquid crystal television, English abbreviation: T-HCFL. technical background [0002] As the screens of LCD flat panel TVs (including plasma flat panel TVs) get bigger and bigger, their power consumption is also getting bigger and bigger. Taking a 47-inch - 52-inch LCD TV as an example, its power consumption has reached 200-300 watts, which is indeed a bit too big for most families. policy. If the screen is increased to 55 or 60 inches, its power consumption will increase greatly! Therefore, major TV manufacturers have adopted many new technologies to reduce the power consumption of the backlight, such as the use of cold cathode backlight (CCFL) brightness adjustable technology, Samsung has launched RGB-LED, white light-emitting diode liquid crystal in 2008 and 2009 TVs were immediately responded by Sony, Sharp and many domesti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H05B41/46H01J61/30G02F1/13357
Inventor 陈友余
Owner 陈友余
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap