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Backlight module and display device thereof

A technology of backlight module and light, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of display device failure, dark lines, etc., and achieve the effect of avoiding mutual interference

Pending Publication Date: 2021-12-07
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a backlight module and a display device to solve the problem of halo during local dimming and darkness during synchronous brightness that cannot be solved by the display device in the prior art. tattoo problem

Method used

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  • Backlight module and display device thereof
  • Backlight module and display device thereof
  • Backlight module and display device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] figure 2 is a schematic structural diagram of the backlight module in the first state of the first embodiment of the present invention, image 3 is a schematic structural diagram of the backlight module in the second state in the first embodiment of the present invention, Figure 4 is the top-view structural schematic diagram of the backlight module in the first embodiment of the present invention, Figure 5 is a schematic diagram of the cross-sectional structure at the edge of the isolation structure in the first embodiment of the present invention, such as Figure 2 to Figure 5 As shown, a backlight module provided by the first embodiment of the present invention includes a direct-type lamp panel 11, a plurality of light emitters 12 disposed on the direct-type lamp panel 11, and an isolation structure 13 (cup), and the isolation structure 13 will be more The light emitters 12 are spaced apart, and the isolation structure 13 can be switched between transparent and n...

Embodiment 2

[0043] Image 6 is a schematic structural diagram of the backlight module in the first state in the second embodiment of the present invention, Figure 7 is a schematic structural diagram of the backlight module in the second state of the second embodiment of the present invention, Figure 8 is a schematic diagram of the cross-sectional structure at the edge of the isolation structure in the second embodiment of the present invention, such as Figure 6-Figure 8 As described above, the backlight module provided in the second embodiment of the present invention is the same as that in the first embodiment ( Figure 2 to Figure 5 ) is basically the same as the backlight module in Two electro-birefringence layers 142, the top of the diffusion plate 14 is provided with a fifth transparent electrode 143 covering the receiving groove 14a, the top of the fifth transparent electrode 143 is provided with a protective layer 144 covering the fifth transparent electrode 143, the fourth tr...

Embodiment 3

[0050] Figure 10 is a schematic structural diagram of the backlight module in the first state in the third embodiment of the present invention, Figure 11 is a schematic cross-sectional structure diagram of the isolation structure at the first conductive pin in the third embodiment of the present invention, Figure 12 is a schematic cross-sectional structure diagram of the isolation structure at the second conductive pin in the third embodiment of the present invention, as shown in Figure 10-Figure 12As shown, the backlight module and the display device provided in the third embodiment of the present invention are the same as those in the first embodiment ( Figure 2 to Figure 5 ) in the backlight module and the display device are basically the same, the difference is that in this embodiment, the second transparent support structure 132 The transparent electrodes 134 cover the top and side walls of the second transparent support structure 132, so that the distance between ...

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Abstract

The invention discloses a backlight module and a display device thereof. The backlight module comprises a direct type lamp panel, a plurality of light emitters arranged on the direct type lamp panel and an isolation structure, wherein the isolation structure separates the light emitters, the isolation structure can be switched between a light-transmitting state and a light-proof state, in the first state, the isolation structure is in the light-proof state, the isolation structure can block part of light emitted by the light emitters, in a second state, the isolation structure is in a light-transmitting state, and the light emitted by the light emitters can penetrate through the isolation structure. The light emitters are separated by arranging the isolation structure, the isolation structure can be switched between the light-transmitting state and the light-proof state, and when local dimming is needed, the isolation structure is controlled to be in the light-proof state, so a phenomenon of halo caused by mutual interference of the adjacent light emitters is avoided, and when synchronous brightness is needed, the isolation structure is controlled to be in the light-transmitting state, therefore, the phenomenon of dark fringes at the control isolation part is avoided.

Description

technical field [0001] The present invention relates to the technical field of displays, and in particular, to a backlight module and a display device thereof. Background technique [0002] With the development of display technology, the manufacture of display panels also tends to be mature, and the display panels provided in the prior art include liquid crystal display panels, organic light emitting display panels, plasma display panels, and the like. Typical display modes in liquid crystal display panels are TN (twisted nematic) display mode and IPS (in-plane switching) display mode. The contrast ratio of TN display mode and IPS display mode is 1,000:1-1,200:1, using pixel Optimized design, negative liquid crystal, and photo-alignment solutions improve the contrast ratio, and it is difficult to meet the requirements of high contrast ratio. The ratio of improvement is limited, and the contrast ratio can only be increased to 1,500:1-1,800:1. The ratio of single improvement i...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02F1/155G02F1/161G02F1/153
CPCG02F1/133606G02F1/155G02F1/161G02F1/1533
Inventor 王学辉陈安稳
Owner KUSN INFOVISION OPTOELECTRONICS
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