LED backlight driving integrated circuit
An integrated circuit and backlight driving technology, which is applied to instruments, static indicators, etc., can solve problems such as instability and uneven brightness of LED display backlights, and reduce production costs, improve uniformity and stability, and reduce chip costs. Effect
Inactive Publication Date: 2017-10-20
广汉阿拉丁科技有限公司
View PDF2 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved by the present invention is that the brightness of the backlight of the LED display is uneven and unstable, and the purpose is to provide an integrated circuit for driving the LED backlight to improve the uniformity and stability of the brightness of the backlight of the LED display
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0017] Such as Figure 1 to Figure 3 Shown, a kind of LED backlight driving integrated circuit, comprises timing control circuit, column driving circuit, bias power supply switching power supply, gamma circuit, row driving circuit and LED display, described bias power supply switching power supply, gamma circuit, row The drive circuit is connected to the LED display in sequence, the sequence control circuit is connected to the bias power supply switching power supply, the column drive circuit is connected to the LED display, the sequence control circuit is connected to the column drive circuit, and the column drive circuit is also connected to the bias The voltage supply switching power supply is connected, and the timing control circuit and the column driving circuit are respectively connected with the row driving circuit; the timing control circuit is used to provide the clock signal for the row driving circuit, and the column driving circuit and the row driving circuit are u...
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
Login to View More Abstract
The present invention discloses an LED backlight driving integrated circuit. The LED backlight driving integrated circuit includes a time sequence control circuit, a column driving circuit, a bias voltage power supply switching power source, a gamma circuit, a row driving circuit and an LED display; the bias voltage power supply switching power source, the gamma circuit, the row driving circuit and the LED display are connected with one another sequentially; the time sequence control circuit is connected with the bias voltage power supply switching power source; the column driving circuit is connected with the LED display; the time sequence control circuit is connected with the column driving circuit; the column driving circuit is also connected with the bias voltage power supply switching power source; and the time sequence control circuit and the column driving circuit are connected with the row driving circuit. According to the LED backlight driving integrated circuit of the invention, the backlight system of the LED display is controlled through the combination of the time sequence control circuit, the column driving circuit, the bias voltage power supply switching power source, the gamma circuit and the row driving circuit, and therefore, the uniformity and stability of the backlight brightness of the LED display can be improved; and chip costs are low, and therefore, the production cost of mass production can be effectively reduced.
Description
technical field [0001] The invention relates to display backlight driving, in particular to an LED backlight driving integrated circuit. Background technique [0002] LED display is a new type of information display media that developed rapidly in the world in the late 1980s. The display is composed of tens of thousands or even hundreds of thousands of semiconductor light-emitting diode pixels evenly arranged. LED pixels of different colors can be manufactured by using different materials. Currently the most widely used are red, green, and yellow. The development of blue and pure green LEDs has reached the practical stage. The LED display screen can display changing numbers, text, and graphic images; it can be used not only in indoor environments but also in outdoor environments, and has advantages that projectors, TV walls, and LCD screens cannot match. In just ten years, LED dot matrix display has rapidly grown into the mainstream product of flat panel display due to it...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/32
CPCG09G3/3406G09G3/32G09G2320/062
Inventor 江孝彬
Owner 广汉阿拉丁科技有限公司