A kind of backlight module and liquid crystal display device
A liquid crystal display device and backlight module technology, which is applied in optics, nonlinear optics, plane/plate-shaped light guides, etc., can solve the problem of narrowing the gap of the optical diaphragm group, poor pressure touch stability, and the change of capacitance C and capacitance change. minor issues
Active Publication Date: 2019-08-20
XIAMEN TIANMA MICRO ELECTRONICS +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the tolerance between the actual size of the film in the LCD panel and the backlight module and the design size, as well as between the actual assembly size and the design assembly size, the lower polarizer set adjacent to the backlight module of the LCD panel may be trapped in the backlight. The gap between the liquid crystal display panel and the optical film group in the backlight module is narrowed due to the inner groove of the plastic frame of the module, so that the capacitance change value of the capacitor C becomes smaller when the user applies the same pressing force, resulting in pressure touch stability. poor
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
[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be completely described below with reference to the accompanying drawings in the embodiments of the present invention and through specific implementation manners. Obviously, the described embodiments are a part of the embodiments of the present invention, rather than all the embodiments, based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, All fall within the protection scope of the present invention.
[0032] figure 1 It is a schematic top-view structure diagram of a backlight module provided by an embodiment of the present invention. It should be noted that, in order to more clearly display the arrangement of the annular support structure 140, figure 1 Only a part of the structure of the backlight module 100 is shown. like ...
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 |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a backlight module and a liquid crystal display device. The backlight module includes: an optical film set, a plastic frame, a conductive frame, and a ring-shaped support structure; wherein, the conductive frame is electrically connected to a reference voltage input terminal and adhered to the bottom surface of the plastic frame; the The optical film set and the annular support structure are arranged in the accommodation space formed by the plastic frame and the conductive frame; the annular support structure is arranged between the optical film set and the conductive frame, And extend along the edge of the optical film group. The technical solution provided by the embodiments of the present invention avoids the instability of the pressure touch signal that occurs when the gap between the liquid crystal display panel and the optical film group is reduced due to the size tolerance of the parts or the assembly tolerance, and achieves the improvement of pressure touch stability. Sexual beneficial effects.
Description
technical field [0001] The present invention relates to the field of display technology, and in particular, to a backlight module and a liquid crystal display device. Background technique [0002] With the continuous development of display technology, pressure touch technology is gradually applied to various electronic devices. Compared with the traditional flat touch technology, the pressure touch technology adds the Z-axis function, which can realize the 3D touch effect. Users bring a more diverse operating experience. [0003] The liquid crystal pressure touch device in the prior art includes two pressure touch electrodes, and the pressure touch function is realized by detecting the change in the capacitance value of the capacitance C formed by the two pressure touch electrodes. One of the pressure touch electrodes is disposed on the liquid crystal display. In the panel, another pressure touch electrode is reused from the iron frame in the backlight module. Due to the t...
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): G02F1/1333G02F1/13357
CPCG02F1/133308G02F1/13338G02F1/133608G02F1/1336G02F1/133314G02F1/133602G02B6/0011G02F2201/34
Inventor 谢天旭
Owner XIAMEN TIANMA MICRO ELECTRONICS