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A kind of vehicle TFT display backlight structure

A technology of backlight structure and display screen, which is applied in the field of display backlight, can solve the problems of uneven force on the light guide plate 5, time-consuming attachment, affecting light efficiency, etc., and achieve no risk of deviation, simple assembly, and cost saving Effect

Active Publication Date: 2021-01-19
HUIZHOU DESAY SV AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diaphragm 2 is fixed with double-sided adhesive 4, and it takes time to attach double-sided adhesive 4, and there is a risk of degumming of diaphragm 2 during the vibration process, causing shaking and abnormal noise
The silicone block 3 is easily misaligned during manual assembly, resulting in uneven force on the light guide plate 5, misalignment of the light guide plate 5 and the LED light bar 7, and affecting light efficiency

Method used

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  • A kind of vehicle TFT display backlight structure
  • A kind of vehicle TFT display backlight structure
  • A kind of vehicle TFT display backlight structure

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation to the protection scope of the present invention.

[0030] see Figure 5 , Figure 9 to Figure 11 , in this embodiment, for a clearer description, the following description is made: the observer faces the attached Figure 5 , the left side of the observer is set as up, and the right side of the observer is set as down. It should be pointed out that the terms "upper", "lower", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship set in the drawings, only It is for the convenience of clearly describing the present invention, but does not indicate or imply that the structures or components referred to must have a specific orientation or be configured in a spec...

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Abstract

The invention discloses a vehicle-mounted TFT (Thin Film Transistor) display screen backlight structure, which comprises a lower aluminum frame, an LED light bar arranged in the lower aluminum frame,an emission sheet arranged in the lower aluminum frame, a light guide plate arranged in the lower aluminum frame, a plurality of diaphragms arranged on the light guide plate, and a middle plastic frame arranged above the lower aluminum frame, wherein one end in two ends, which are positioned on the bottom of the lower aluminum frame and are near one long edge, is provided with a first round hole,and the other end is provided with a first waist-shaped hole; two ends, which are positioned on the lower surface of the light guide plate and are near one long edge, are independently correspondinglyprovided with a first poisoning column; and the light guide plate is independently correspondingly inserted into the first round hole and the first waist-shaped hole through the first positioning column so as to realize positioning. The vehicle-mounted TFT display screen backlight structure can realize positioning without filling other materials, and has the advantages of low cost, simple structure, reliability in positioning and high assembling efficiency.

Description

technical field [0001] The invention relates to the technical field of display screen backlights, in particular to a vehicle-mounted TFT display screen backlight structure. Background technique [0002] At present, when designing the backlight structure of the vehicle-mounted TFT display, it is generally necessary to consider the high-temperature thermal expansion or shaking of the light guide plate 5 and the diaphragm 2 in the backlight structure, such as Figure 1 to Figure 3 As shown, the installation method of the light guide plate 5 in the lower aluminum frame 8 is as follows: in the X-axis and Y-axis directions, the light guide plate 5 uses a silica gel block 3 for interference positioning to prevent the light guide plate 5 from shaking in the X-axis and Y-axis directions , produce abnormal noise. The silica gel block 3 is reserved with a compression amount, which can prevent the light guide plate 5 from thermally expanding and arching under high temperature conditions...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00G09F9/00
CPCG02B6/0088G09F9/00
Inventor 王珊珊张华彬姚惠芳
Owner HUIZHOU DESAY SV AUTOMOTIVE
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