A ttl-rgb signal one belt two output control circuit
A technology of signal input circuit and voltage control circuit, applied in static indicators, instruments, etc., can solve the problems of high production cost, stable fluctuation, multiple devices, etc., and achieve the effect of low cost and stable and reliable circuit structure.
Active Publication Date: 2021-05-18
深圳市芯毕耐科技有限公司
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Problems solved by technology
[0002] In the prior art, TTL-RGB interface circuits are widely used in industrial control electronic products to drive a single small-sized LCD panel. If there are multiple LCD panels to be controlled, multiple interface circuits need to be designed separately, which will inevitably require more devices. , resulting in complex logic of the entire control unit, poor stability and high production costs
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[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as figure 1 , the present embodiment provides a TTL-RGB signal with two output control circuit for driving the first display device and the second display device, including TTL-RGB signal input circuit, TTL-RGB signal with two output distribution circuit, TFT The backlight control circuit, the voltage control circuit for turning on and off the TFT, and the power-on sequence control circuit for the voltage, the output end of the TTL-RGB signal input circuit is connected to the input end of the TTL-RGB signal one-band-two output distribution circuit, and the TTL- The first output terminal of the RGB signal one-band two-output distribution circuit is connected to the first display device, and the second output terminal of the TTL-RGB signal one-band two-output distribution circuit is connected to the second display device.
[0024] ...
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The invention discloses a TTL-RGB signal-one-one-two-output control circuit for driving a first display device and a second display device, comprising a TTL-RGB signal input circuit, a TTL-RGB signal one-one-two output distribution circuit, and a TFT backlight control circuit. circuit, a voltage control circuit for turning on and off TFT, and a power-on sequence control circuit for voltage, the output end of the TTL-RGB signal input circuit is connected to the input end of the TTL-RGB signal band two output distribution circuit, and the TTL-RGB signal The first output end of the one-one-two-output distribution circuit is connected to the first display device, and the second output end of the TTL-RGB signal one-one-two output distribution circuit is connected to the second display device. In the present invention, the first distribution circuit and the second distribution circuit are arranged, the first distribution circuit and the second distribution circuit convert the high-speed TTL-RGB signal and output it, the first display device is controlled by the first distribution circuit, and the first display device is controlled by the second distribution circuit. The second display device has a stable and reliable circuit structure and low cost.
Description
technical field [0001] The invention relates to the field of TTL-RGB signal control, in particular to a TTL-RGB signal one-band two-output control circuit. Background technique [0002] In the prior art, TTL-RGB interface circuits are widely used in industrial control electronic products to drive a single small-sized LCD panel. If there are multiple LCD panels to be controlled, multiple interface circuits need to be designed separately, which will inevitably require more devices. , resulting in complex logic of the entire control unit, poor stability and high production costs. [0003] Therefore, there are defects in the prior art and need to be improved. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a high-speed, stable, reliable, and low-cost TTL-RGB signal one-band two-output control circuit. [0005] The technical scheme of the present invention is as follows: a TTL-RGB signal one belt two output control ...
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IPC IPC(8): G09G3/36G09G3/34
Inventor 曾照国
Owner 深圳市芯毕耐科技有限公司