Display drive circuit and method for adjusting output brightness of display
A display driver and display technology, applied in static indicators, cathode ray tube indicators, instruments, etc., can solve problems such as flickering and jumping of display screens, and achieve the effect of solving brightness instability
Inactive Publication Date: 2012-07-04
PRINCETON TECH CORP
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Once biased V bias If there is a change, the equivalent resistance value of the calibration device 130 will also change accordingly, which will cause unstable phenomena such as flickering and jumping on the display screen
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 Construction
[0028] In order to make the above and other objects, features and advantages of the present invention more comprehensible, a number of preferred embodiments will be described in detail below together with the accompanying drawings.
[0029] image 3 It is a schematic diagram of a driving circuit according to the present invention. The driving circuit 300 includes a pixel 302 , an output stage 304 , and an adjustment device 330 . Wherein the output stage 304 is coupled to the pixel 302 and receives a pixel signal S p control so that an output voltage V on the pixel out switched at a high level V H and a low level V GND between. The calibration device 330 is coupled between the output stage 304 and the pixel 302, and includes an input terminal A for receiving a bias voltage V bias The equivalent resistance value of the calibration device 330 is adjusted through the control of the control device, and finally the purpose of calibrating the display brightness of the pixel is ...
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 invention discloses a display drive circuit and a method for adjusting the output brightness of a display and particularly relates to the display drive circuit for driving at least one pixel of the display. The display drive circuit comprises an output stage, an adjusting device and a surge suppression device, wherein the output stage is coupled with the pixel and controlled by a pixel signalto make the output voltage on the pixel switched between a high level and a low level; the adjusting device is coupled between the output stage and the pixel and comprises an input end controlled by a bias pressure to adjust the equivalent resistance of the adjusting device so as to correct the display brightness of the pixel; and the surge suppression device is coupled between the input end of the adjusting device and the pixel signal for suppressing the surge, generated by the switching of the voltage and the level of the output voltage, of the bias pressure. The display drive circuit and the method for adjusting the output brightness of the display can solve the problem of unstable image brightness in the prior art.
Description
technical field [0001] The present invention relates to a display, in particular to a driving circuit of the display. Background technique [0002] figure 1 It is a schematic diagram of a display driving circuit according to the prior art. The driving circuit 100 includes a pixel 102 and an output stage 104 for driving the pixel 102 . The output stage 104 of the driving circuit 100 includes a p-type metal oxide semiconductor field effect transistor (p-type-MOSFET) 112 and an n-type metal oxide semiconductor field effect transistor (n-type-MOSFET) 114, and the two transistors 112 and 114 each include a gate coupled to the pixel signal S p And accept its control, so that the voltage on the pixel 102 is switched to the high voltage V H and low voltage (ground voltage) V GND be turned on or off in between. [0003] The output voltage V applied to the pixel 102 out Often affects the brightness of the pixels, however, the nature of the display itself can also cause slight v...
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 Patents(China)
IPC IPC(8): G09G3/28G09G5/10
Inventor 周彦云
Owner PRINCETON TECH CORP