A high-brightness liquid crystal writing device
A writing device and high-brightness technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as large thickness and excessive erasing voltage
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Embodiment 1
[0065] The liquid crystal writing device of the first embodiment includes a liquid crystal writing screen 100 and an electronic circuit 180 . Among them, the liquid crystal writing screen 100 such as figure 1 As shown, it includes three substrate layers and two liquid crystal writing layers, specifically the first substrate layer 110, the first liquid crystal writing layer, the intermediate support layer 170, the second liquid crystal writing layer and the second substrate layer stacked in sequence Layer 190.
[0066] The first liquid crystal writing layer and the second liquid crystal writing layer have the same structure, including a display material layer, two erasing conductive layers located on the upper and lower sides of the display material layer, and respectively located between the erasable conductive layer and the display material layer. Specifically, the first erasing conductive layer 120 , the first insulating layer 130 , the display material layer 140 , the seco...
Embodiment 2
[0081] The main difference between the second embodiment and the first embodiment is that the liquid crystal writing device of this embodiment can realize partial erasing.
[0082] The difference between the liquid crystal writing screen 100 of the present embodiment and the first embodiment is as follows:
[0083] Both the first erasing conductive layer 120 of the first liquid crystal writing layer and the second liquid crystal writing layer are complete conductive layers, and the second erasing conductive layer 160 of the first liquid crystal writing layer and the second liquid crystal writing layer is provided with A plurality of conductive blocks 143 insulated from each other form a conductive block array, such as Figure 4 shown. The conductive block 143 can be square, rectangular, parallelogram, hexagonal or evenly arranged blocks of equal size and shape, or blocks of different sizes and shapes, as long as the display material layer 140 can be partially covered, corresp...
Embodiment 3
[0098] The liquid crystal writing device of this embodiment three is roughly the same as that of embodiment two, the main difference is:
[0099] First, replace the infrared touch screen 200 with a key input device. The key input device such as Figure 7 As shown, corresponding to the row where each conductive block 143 is located, a button and an indicator light indicating the state of the button are arranged on one side of the writing area. The indicator light is on when the button is pressed, otherwise the indicator light is off; corresponding to each conductive block 143 The column where it is located is provided with a button and an indicator light indicating the state of the button on the upper or lower side of the writing area. The indicator light is on when the button is pressed, otherwise the indicator light is off. Look at the row and column where the position to be erased is located, and press the buttons corresponding to the row and column respectively to erase th...
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