System and method for controlling display gray of self-closing pulse width modulation panel
A technology of pulse width modulation and flat panel display, applied to static indicators, instruments, etc., can solve the problems of unfavorable implementation of proprietary chips, increased hardware costs, and large area resource consumption
Active Publication Date: 2011-11-16
广州庆源电子有限公司
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Problems solved by technology
This method uses a large number of shift registers and comparators, resulting in increased hardware costs and large area resource consumption, which is not conducive to the implementation of proprietary chips
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[0034] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
[0035] The structure of the self-closing pulse width modulation flat panel display gray scale control system of the present invention, as figure 1 As shown, a general controller 1 is included, and a row control circuit 5 and a column control circuit 2 are connected to the total controller 1. The column control circuit 2 includes a column opening module 3, a column closing module 4 and an RS flip-flop array 9 connected to each other. The output end of the RS flip-flop array 9 is connected to the column drive circuit 7 , the output end of the row control circuit 5 is connected to the row drive circuit 6 , and both the column drive circuit 7 and the row drive circuit 6 are connected to the flat panel display 8 . one of them,
[0036] The main controller 1 is used to coordinate the work of each module and generate a general clock signal;
[0037] The colu...
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The invention discloses a system for controlling the display gray of a self-closing pulse width modulation panel, which comprises a general controller. A transverse line control circuit and a vertical line control circuit are connected to the general controller. The vertical line control circuit comprises a vertical line opening module, a vertical line closing module and an RS trigger array whichare connected mutually. The output end of the RS trigger array is connected with a vertical line driving circuit, the output end of the transverse line control circuit is connected with a transverse driving circuit, and the vertical line driving circuit and the transverse line driving circuit are both connected with a panel display screen. The method which uses the devices for controlling comprises the following steps: reading data firstly; and then processing data; carrying out valid selection after the RS trigger array is displayed to be opened; and finally displaying the gray. The method and the system for controlling the display gray of a self-closing pulse width modulation panel reduce the use of system hardware resources, especially get a certain advantage in chip area, and can realize gray level control simply and flexibly. The method is also applicable to a space method, a sub-field gray display method and other digital gray control methods.
Description
technical field [0001] The invention belongs to the technical field of display control, and in particular relates to a self-closing pulse width modulation flat panel display gray level control system, and also relates to a control method using the system. Background technique [0002] As a window for man-machine contact and information display, display technology is widely used in all aspects of social life and has become a pillar industry of the electronic information industry. Facing huge social demands, flat panels based on display devices such as liquid crystal (LCD) display, plasma (PDP) display, electroluminescence (ELD) display, light emitting diode (LED) display, organic light emitting diode (OLED) display, etc. Displays came into being. The advantage of flat-panel display is flat-panel shape, which saves space; most of them can be directly matched with IC circuits, which is an ideal structure that can meet the requirements of today's society for information portabi...
Claims
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IPC IPC(8): G09G3/20
Inventor 余宁梅李扬王婷陈知新
Owner 广州庆源电子有限公司