Liquid crystal lens type dimming device and display

A liquid crystal display and liquid crystal lens technology, applied in static indicators, optics, instruments, etc., can solve the problems of increasing the brightness of the backlight and increasing the cost of the display

Active Publication Date: 2014-02-26
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Calculated based on the above-mentioned transmittance, only 6% of the light emitted from the backlight is left. To obtain sufficient brightness of the liquid crystal display, it is necessary to increase the brightness of the backlight, which increases the display cost accordingly.

Method used

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  • Liquid crystal lens type dimming device and display
  • Liquid crystal lens type dimming device and display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 A schematic structural diagram of the liquid crystal lens type dimming device of this embodiment is shown, the dimming device includes a first substrate 100 and a second substrate 200, the two substrates are arranged opposite to each other at a certain distance, and the first substrate 100 is located on the second substrate 200 Below, a liquid crystal is added between the two substrates, such as figure 1 In the liquid crystal layer 300 shown in , the two substrates are packaged into a cell by a sealant 301 to form a liquid crystal cell.

[0025] The upper surface of the first substrate 100 is also sequentially formed with a first electrode layer 101 and a first alignment layer 102, the first alignment layer 102 is in direct contact with the liquid crystal layer 300, and the first alignment layer 102 is used to align the liquid crystal molecules in the liquid crystal layer 300 , so that the liquid crystal molecules are arranged according to certain rules before...

Embodiment 2

[0032]The structure of the liquid crystal lens type dimming device provided in this embodiment is similar to that of Embodiment 1, the difference is that the first electrode layer 101 of this embodiment is a patterned electrode, the second electrode layer 201 is a surface electrode, and the second electrode layer 201 is a surface electrode. When the first electrode layer 101 is used as a patterned electrode, its structure and relative positional relationship with the baffle 400 are the same as that of the second electrode layer 201 in Embodiment 1 when used as a patterned electrode. Specifically, the first electrode layer 101 includes a plurality of first electrode regions and first electrode light-shielding regions distributed at intervals, and the first electrode layer 101 is connected with an electrode voltage control circuit to separately control the voltage of each first electrode region in the patterned electrode. and each barrier light-shielding region 401b is located ab...

Embodiment 3

[0034] The structure of the liquid crystal lens type dimming device provided in this embodiment is similar to that of Embodiment 1, the difference is that the first electrode layer 101 of this embodiment is also a patterned electrode, specifically, the first electrode layer 101 includes A plurality of first electrode regions and first electrode light-shielding regions distributed at intervals, the first electrode layer 101 is connected with an electrode voltage control circuit to respectively control the voltage on each first electrode region in the patterned electrodes. In addition, each electrode area of ​​the second electrode layer 201 is respectively located above an electrode area of ​​the first electrode layer 101, and the structure of the baffle plate 400 and its relative positional relationship with the second electrode layer 201 remain unchanged, which is the same as in Embodiment 1. same.

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Abstract

A liquid-crystal-lens type light-modulating apparatus and a liquid crystal display having the same are disclosed. The liquid-crystal-lens type light-modulating apparatus comprises: a first light-transmissive substrate, with a first electrode layer and a first alignment layer being provided sequentially on an upper surface thereof; a second light-transmissive substrate located over the first substrate, with a second electrode layer and a second alignment layer being provided sequentially on a lower surface thereof; and liquid crystal sandwiched between the first and second alignment layers, wherein at least one from the first and second electrode layers is formed as a patterned electrode, and the patterned electrode comprises: a plurality of electrode light-transmissive regions and a plurality of light-shielding regions, arranged at an interval therebetween; and the liquid-crystal-lens type light-modulating apparatus further comprises a shielding sheet provided above the second substrate, and the shielding sheet comprises: a plurality of shielding sheet light-transmissive regions and a plurality of shielding sheet light-shielding regions, arranged at an interval therebetween; and each of the shielding sheet light-shielding regions is located over one of the electrode regions in the patterned electrode, and has an area less than the area of an electrode region corresponding to it.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a liquid crystal lens type dimming device and a display. Background technique [0002] One of the most important specifications in liquid crystal displays is brightness, and the most important factor in determining brightness is the aperture ratio. Simply put, the aperture ratio is the ratio of the effective area through which light can pass. When the light is emitted through the backlight panel, not all the light can pass through the panel, such as the signal wiring for the liquid crystal display source driver chip and gate driver chip, as well as the TFT itself, as well as the storage for voltage storage. capacitance and so on. In addition to the incomplete light transmission in these places, because the light passing through these places is not controlled by the voltage, the correct gray scale cannot be displayed, so they must be covered with a black matrix, so as not to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133G02F1/29G02F1/1343G02F1/1337G02F1/1335G02F1/13357
CPCG02F1/133606G02F1/133512G02F1/133611G02F2203/48G02F2203/28G02F2001/294G02F1/133526G02F1/294
Inventor 张卓
Owner BOE TECH GRP CO LTD
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