Liquid crystal screen

A technology of liquid crystal screens and liquid crystal devices, which can be applied to instruments, static indicators, etc., can solve the problems of dark surroundings, strong dependence on ambient light, and deterioration of display effects, and achieve ultra-low power consumption display, high depth of field, and weight reduction.

Inactive Publication Date: 2015-05-06
XIAN YIPU COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, based on this reflective LCD screen, it is relatively dependent on ambient light.
When the backlight is turned off, the display is clear and bright in the case of sufficient ambient light, but in the case of insufficient ambient light, the display effect will deteriorate a lot. At the...

Method used

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Embodiment Construction

[0016] see figure 1 , The specific embodiment of the present invention comprises MOFET array, liquid crystal device, polarization device, CCD array, photoelectric MOSFET light-emitting array and its electric charge storage circuit, backlight source and backlight switch, channel switch and CPU. On the basis of the CPU processing bus connected to the MOFET array, the present invention increases the CCD array signal for image acquisition, and transmits it to the CPU through the bus, so that two states of screen display and image acquisition can be realized, and the screen can be displayed on the screen through the channel switch. The two states of display and image acquisition are switched back and forth. The channel switch can be switched and triggered by software or by hardware circuit, which can be selected according to the actual application scenario. The backlight of the display state converts the ambient light energy into electric energy through the photoelectric MOSFET lig...

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Abstract

The invention relates to a multi-function liquid crystal screen with the functions of reflection type passive display and image collection. The liquid crystal screen comprises an MOSFET (Metal Oxide Semiconductor Field Effect Transistor) array, a liquid crystal device, a photoelectric array and a CPU (Central Processing Unit); the source-level voltage of the MOSFET array is controlled by the CPU; the difference of the source-level voltage is controlled so as to control the light transmission capacity of the liquid crystal device; the photoelectric array is excited through the light of the liquid crystal device to convert optical signals into backlight signals to excite the liquid crystal screen; the CPU is connected with the MOSFET array which is connected with the liquid crystal device. According to the liquid crystal screen, the backlight liquid crystal screen can be excited through the environment light due to the passive reflection type scheme and accordingly the purpose of the reduction of the power consumption is implemented to an utmost extent; meanwhile the liquid crystal screen serves as an interface of image collection to enable the liquid crystal screen to be a multi-function device for implementing the image coaction and accordingly the definition and the depth of field of image collection images are improved; meanwhile the calculation on the target movement speed is implemented.

Description

technical field [0001] The invention relates to a liquid crystal screen, in particular to a multifunctional liquid crystal screen with reflective passive display and image collection functions. Background technique [0002] Current reflective LCD screens are divided into the following two types: passive display screens and active-passive display screens. The passive reflective display is installed with reflective material under the liquid crystal panel to replace the luminescent material of the transmissive display. When the ambient light is sufficient, it uses the light reflected by the mirror to illuminate the screen. But it doesn't work in low-light areas, because the little ambient light isn't reflected enough to illuminate the screen. This kind of display screen that can only passively accept and reflect ambient light is a passive reflective LCD screen. The "active" reflective LCD screen corresponding to the "passive anti" reflective LCD screen is equivalent to adding...

Claims

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Application Information

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IPC IPC(8): G09G3/36
Inventor 李伟
Owner XIAN YIPU COMM TECH
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