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Front lighting device and reflective display device using same

A reflective display and lighting device technology, which is applied to parts of lighting devices, lighting devices, fixed lighting devices, etc.

Inactive Publication Date: 2011-12-14
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of reading board structure is similar to the front lighting device of the aforementioned reflective display device, and has the same disadvantages

Method used

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  • Front lighting device and reflective display device using same
  • Front lighting device and reflective display device using same
  • Front lighting device and reflective display device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Please refer to figure 1 , is a schematic structural diagram of a reflective display device 100 with a front lighting device according to the first embodiment of the present invention. The reflective display device 100 includes a display layer 10 , a light guide plate 20 and a power source (not shown in the figure). In the first embodiment, the display layer 10 is an electronic paper display screen, including a common electrode 11 , an electrophoretic display medium layer 12 and a pixel electrode 13 . The common electrode 11 is generally set as an ITO electrode on the entire surface, and the pixel electrode 13 includes a plurality of mutually independent TFT electrodes. The electrophoretic display medium layer 12 is bonded between the common electrode 11 and the pixel electrode 13 by an adhesive. The electrophoretic display medium layer 12 is a bistable electrophoretic display medium, and in this embodiment, a microcapsule electrophoretic display medium is used. The ...

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PUM

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Abstract

A reflective display device with a front lighting device, comprising a display layer and a light guide plate arranged on the display layer. At least one light source is arranged on the side of the light guide plate, at least one scanning mirror is arranged on the side of the light guide plate, and a diffusion plate is also arranged between the light guide plate and the display layer. The light guide plate includes a first surface away from the display layer and a second surface close to the display layer. The light emitted by the light source is reflected by the scanning mirror and then enters the inside of the light guide plate. Repeated reflection between the first surface and the second surface of the light plate propagates forward, refracts through the second surface, enters the diffuser plate and diffuses to the display layer to provide front light illumination. The invention also provides a front lighting device.

Description

technical field [0001] The invention relates to a lighting device, in particular to a front lighting device and a reflective display device using the front lighting device. Background technique [0002] Reflective display devices such as electronic paper, bile-colored liquid crystal displays, etc. have the advantages of no need for backlighting and low energy consumption, so reflective display devices are widely used in portable electronic devices such as monitors, laptop computers, PDAs, and e-book readers. middle. The display of the reflective display device depends on the reflection of ambient light, so the reflective display device is usually equipped with a front lighting device to provide ambient light illumination for the reflective display in dark places such as the environment is not bright or at night. [0003] Generally, the front lighting device of a reflective display device includes a light guide plate and a light source arranged on the side of the light guide...

Claims

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Application Information

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IPC IPC(8): G02F1/167G02B26/10F21S8/00F21V13/00
Inventor 何宪龙林久雄黄冠瑞
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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