Unlock instant, AI-driven research and patent intelligence for your innovation.

Light source driving apparatus, display device having the same, and driving method thereof

A technology for driving a light source and a display device, which is applied in the field of source to improve driving, can solve the problems of increasing the manufacturing cost, reducing the system driving speed, time delay, etc., and achieves the effects of improving the overall driving speed, improving the efficiency and reducing the manufacturing cost.

Inactive Publication Date: 2008-08-13
SAMSUNG ELECTRONICS CO LTD
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Since the light source driver 30 must generate a high level of driving current, a heat radiation mechanism (such as a heat sink) is also required, which increases the manufacturing cost
[0015] In addition, since a high-level driving current is supplied to the light source module 20 in order to drive the light source module 20, during the pulse waveform formation, a time delay occurs
Therefore, the driving speed of the light source module 20 decreases, thereby reducing the driving speed of the entire system.

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
  • Light source driving apparatus, display device having the same, and driving method thereof
  • Light source driving apparatus, display device having the same, and driving method thereof
  • Light source driving apparatus, display device having the same, and driving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] Now, specific exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0058] In the following description, the same reference numerals are used for the same components even in different drawings. Matters such as detailed construction and components defined in the description are provided to assist in a comprehensive understanding of the present invention. Therefore, it is apparent that the present invention can be carried out without those specifically defined matters. Also, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

[0059] FIG. 3 is a schematic diagram of a light source driving device according to an exemplary embodiment of the present invention.

[0060] The light source driving device 100 of FIG. 3 includes a switch 140 connected to the light source module 120 and a light source driver 160 for providing a cont...

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

A light source driving apparatus for time-dividing and driving a plurality of light sources, a display device having the same, and a driving method thereof are provided. The light source driving apparatus includes a light source module including a plurality of light sources; a light source driver which outputs a driving current to drive the light sources; and a switch which selectively feeds the driving current to the light sources respectively and sequentially drives the plurality of the light sources. The light source driver outputs a low-level driving current to drive the light sources, and thus the driving speed, the system efficiency and the optical power can be increased and the manufacturing cost can be reduced.

Description

technical field [0001] Apparatuses and methods consistent with the present invention relate to a light source driver, a display having the same, and a method of driving the display, and more particularly, to a method of dividing a plurality of light sources into blocks and driving the divided plurality of light sources A light source driving device for improving driving speed and driving efficiency and reducing manufacturing cost, a display device having the light source driving device, and a driving method thereof. Background technique [0002] Recently, one of the main concerns on display devices is to realize the display portion of the display device as a large screen. In addition, there is a great demand for a display device having a high-definition large screen as a display portion. In order to meet such demands, projection devices including projection televisions (TVs) or projectors have been suggested as large-screen high-definition display devices. [0003] The pro...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31G09G3/36G09G3/34H05B44/00
CPCH05B33/0818H05B33/0848H05B33/0851H05B45/14H05B45/10H05B45/37H04N5/74H04N5/63
Inventor 郑镇吉李承约李政燮
Owner SAMSUNG ELECTRONICS CO LTD