Backlight module and manufacturing method thereof, display device and control method thereof
A backlight module and display device technology, applied in the direction of light guides, optics, optical components, etc., can solve the problems of high power consumption, high price, high cost of display devices, etc., achieve reduced half-brightness angle and cut-off angle, low cost, The effect of low power consumption
Active Publication Date: 2021-02-12
HEFEI BOE OPTOELECTRONICS TECH +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, PDLC is expensive, and an external electric field needs to be applied to make the backlight module in the anti-peeping mode, so the cost of the backlight module is relatively high, and the power consumption is relatively high, and the cost of the liquid crystal display device is relatively high, and the power consumption is relatively large.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0061] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0062] figure 1 is a schematic structural diagram of a backlight module 0 provided in an embodiment of the present application, figure 2 yes figure 1 The right side view of the backlight module 0 shown, see figure 1 and figure 2 , the backlight module 0 includes: a first light source 01, a first light guide plate 02 and an anti-peeping component 03, the first light source 01 is a side-type light source of the first light guide plate 02, and the first light guide p...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| refractive index | aaaaa | aaaaa |
| refractive index | aaaaa | aaaaa |
Login to View More
Abstract
The application discloses a backlight module and a manufacturing method thereof, a display device and a control method thereof, and belongs to the field of display technology. The backlight module includes a first light source, a first light guide plate and an anti-peeping component. The first light source is an edge-type light source of the first light guide plate. The anti-peeping component is arranged on the light-emitting surface, and the refractive index of the medium in the backlight module in contact with the backlight surface is smaller than the refractive index of the first light guide plate. The anti-peeping component includes a peep-proof structure, and the peep-proof structure has a A first surface of a light guide plate, a second surface away from the first light guide plate, and two third surfaces intersecting the first surface and the second surface, the two third surfaces are opposite, and each third surface is connected to The included angle between the first surfaces is an obtuse angle, and the second surface is a free-form surface. The application can reduce the cost of the backlight module and reduce the power consumption of the backlight module.
Description
technical field [0001] The present application relates to the field of display technology, in particular to a backlight module and a manufacturing method thereof, a display device and a control method thereof. Background technique [0002] With the development of display technology and the increasing demand for personal privacy protection, the anti-peeping requirements for display devices are also getting higher and higher. A liquid crystal display device is a widely used display device, which includes a backlight module and a display panel. For a liquid crystal display device, the anti-peeping display function is usually realized from the backlight module. [0003] In a liquid crystal display device with anti-peeping display function, the backlight module includes a light guide plate, a light source, and a privacy film and a liquid crystal dimming film (PDLC for short) arranged on the light-emitting side of the light guide plate. The light emitted by the light source passes...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/13357G02B6/00
CPCG02F1/13G02B6/0076G02B6/0036G02B6/0065G02B6/0038G02B6/0033G02B6/005
Inventor 汤海高亮
Owner HEFEI BOE OPTOELECTRONICS TECH