CN213457601U

CN213457601U - Lamp panel for enhancing partitioned dimming effect of miniLED backlight source

Info

Publication number: CN213457601U
Application number: CN202022448386.6U
Authority: CN
Inventors: 丁光耀; 杨超; 潘道明; 李斌; 茆逸民; 王康; 马艳楠
Original assignee: NANJING CHINA ELECTRONICS PANDA LIGHTING CO Ltd
Current assignee: NANJING CHINA ELECTRONICS PANDA LIGHTING CO Ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-15
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a reinforcing miniLED backlight subregion effect of adjusting luminance, including the base plate that has luminous region and non-luminous region and the LED granule of setting at luminous region, still set up the barn door that is used for preventing LED photodiffusion to non-luminous region that surrounds luminous region on the base plate. The utility model discloses a lamp plate has the advantage that improves picture display effect.

Description

Lamp panel for enhancing partitioned dimming effect of miniLED backlight source

Technical Field

The utility model belongs to the technical field of liquid crystal display, concretely relates to strengthen miniLED backlight subregion effect of adjusting luminance lamp plate.

Background

With the continuous development of science and technology, the requirements of consumers on the liquid crystal display industry are higher and higher, and the miniLED backlight becomes a new development trend of the liquid crystal display industry. However, since the miniLED backlight adopts a partitioned dimming technology, light of a light emitting region can be diffused to a non-light emitting region, and under the condition of large OD (distance from the lamp panel to the lowest diaphragm), the light emitting area of the LED is large, so that when the miniLED is subjected to partitioned dimming, the position of the liquid crystal screen, where the light is not needed, still has light, and the contrast is reduced, so that the picture contrast is influenced. Especially, in the low-cost scheme, the OD is increased due to the reduction of LED particles and subareas, so that the picture display effect is greatly reduced.

Disclosure of Invention

The light of luminous region can spread the condition of non-luminous region in order to solve above-mentioned base plate, the utility model provides a strengthen miniLED backlight subregion effect of adjusting luminance's lamp plate.

Strengthen miniLED backlight subregion effect of adjusting luminance's lamp plate, including having the base plate of luminous region and non-luminous region and setting up the LED granule in luminous region, still set up the barn door that is used for preventing LED photodiffusion to non-luminous region that surrounds luminous region on the base plate.

In order to achieve the best light blocking effect, the height of the light blocking plate is the distance from the lamp panel to the lowest diaphragm of the backlight source above the lamp panel.

Has the advantages that: the utility model adopts the lamp panel which is provided with the light barrier surrounding the light-emitting area on the substrate to prevent the light of the light-emitting area from diffusing to the non-light-emitting area, thereby effectively preventing the light from appearing at the position where the light is not needed and improving the contrast ratio, thereby improving the picture display effect; the height of the light barrier is set as the distance from the lamp panel to the lowest diaphragm of the backlight source above the lamp panel, so that the light blocking effect is optimal.

Drawings

Fig. 1 is a schematic structural view of a lamp panel of the present invention;

fig. 2 is a schematic structural diagram of a conventional lamp panel.

Detailed Description

The technical solution of the present invention is described in detail below by way of examples, but the scope of the present invention is not limited to the examples.

Examples

As shown in the figure, the utility model relates to a lamp plate of reinforcing miniLED backlight subregion effect of adjusting luminance, including having the base plate 21 of sending out light region and non-light-emitting region and setting up the LED granule 22 in sending out light region, still set up the barn door 23 that is used for preventing that LED light from diffusing to non-light-emitting region who surrounds sending out light region on base plate 21. The height of the light barrier 23 is the distance from the lamp panel to the diaphragm of the backlight located above the lamp panel, which is closest to the lamp panel.

The above-mentioned techniques not specifically mentioned refer to the prior art.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a reinforcing miniLED backlight subregion effect of adjusting luminance which characterized in that, includes the base plate that has the luminous region and does not give out light the region and sets up the LED granule in luminous region, still sets up the barn door that is used for preventing LED light diffusion to the non-luminous region that surrounds luminous region on the base plate.

2. The lamp panel for enhancing the partitioned dimming effect of the miniLED backlight source according to claim 1, wherein the height of the light barrier is the distance from the lamp panel to the lowest diaphragm of the backlight source above the lamp panel.