High-brightness wide-temperature liquid crystal display
A liquid crystal display, highlighting technology, applied in the direction of static indicators, instruments, etc., can solve the problems that the dimming characteristics cannot meet the requirements of actual combat use, the working environment temperature range is not wide, the brightness of the liquid crystal display is not high, etc., to achieve the working temperature adaptability Wide range, realize the effect of backlight adjustment and precise backlight adjustment
Inactive Publication Date: 2012-09-26
SHENZHEN NEW SUPER BRIGHT LCD DISPLAY
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a liquid crystal display with high brightness, wide temperature and precise backlight adjustment for the defects of the existing liquid crystal display such as low brightness, wide adaptable range of working environment temperature, and dimming characteristics that cannot meet the requirements of actual combat use.
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[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0014] Embodiments of the present invention provide a liquid crystal display with high brightness, wide temperature range and precise backlight adjustment, such as figure 1 As shown, the liquid crystal display includes: PWM width control 4-level voltage generation circuit 101, the PWM width control 4-level voltage generation circuit 101 is used to form the control voltage of the PWM width, and the 4-level voltage generation circuit 101 is connected for The 4-level voltage switching circuit 102 for PWM width control, the 4-level voltage generation circuit 101 outputs the formed PWM width control vol...
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The invention relates to a high-brightness wide-temperature liquid crystal display which is used for adjusting the high-precision backlight brightness and comprises a four-range voltage generating circuit and a VGA (Video Graphics Array) signal switcher, wherein the four-range voltage generating circuit is connected to a four-range voltage switching circuit; a PWM (Pulse Width Modulation) pulse formation circuit is connected to an inverter power control circuit; the inverter power control circuit is connected to a high-voltage formation and distribution circuit; the high-voltage formation anddistribution circuit is connected with a cold cathode florescent lamp; the VGA signal switcher is used for receiving eight-path VGA signal inputs and is connected to an image card; a field synchronizing signal shaping circuit is connected to a phase locking frequency doubling circuit; the phase locking frequency doubling circuit is connected to the PWM pulse formation circuit; a switching signal shaping circuit is respectively connected to the four-range voltage switching circuit; and a switching state display circuit is connected with an LED (light-emitting diode) lamp. In the invention, a high-brightness wide-temperature liquid crystal display which can precisely adjust the light brightness in the four ranges is provided.
Description
technical field [0001] The invention relates to the technical field of liquid crystal displays, more specifically, to a military-used high-brightness, wide-temperature liquid crystal display. Background technique [0002] Liquid crystal displays are widely used in various fields, such as office, industry, military industry, family and other fields. The liquid crystal display provided by the prior art cannot meet the requirements of special occasions (such as: military industry) due to defects such as low brightness, low adaptability to working environment temperature, and dimming characteristics that cannot meet the requirements of actual combat use. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a liquid crystal display with high brightness, wide temperature and precise backlight adjustment for the defects of the existing liquid crystal display such as low brightness, wide adaptable range of working environment...
Claims
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IPC IPC(8): G09G3/36
Inventor 付万钧王雪芳刘金锐方木
Owner SHENZHEN NEW SUPER BRIGHT LCD DISPLAY