JPS60244167A - LCD TV panel support structure - Google Patents

Abstract

PURPOSE:To hold tightly a liquid crystal panel from its upper and lower surface sides and to improve the shock resistance of the panel, by applying a buffer material to the entire or approximately entire circumferential areas of both sides of the panel. CONSTITUTION:When a liquid crystal panel 11 for TV pictures is set to an external member of 12 of a TV receiver, the buffer materials 14 and 15 of Si rubber, polychloroprene rubber, nitrile rubber or various types of sponge rubber are applied to the entire or approximately entire circumferential areas of both sides of the panel 11. Then the panel 11 is held between the member 12 and a panel fixing member 18 and fixed tightly with a panel fixing screw 17. Thus the panel 11 is protected by the materials 14 and 15, therefore, the shock resistance of the panel 11 is increased.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a structure K for supporting a liquid crystal panel of a liquid crystal television device.
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[Prior art]

Although only a few days have passed since a compact and portable liquid crystal television set was actually commercialized, there is no established panel support structure for the liquid crystal television set. For example, the panel support structure of a conventional liquid crystal television is as shown in FIG. 1, and is basically the same as the panel support structure of a conventional liquid crystal wristwatch. In Figure 1, 1 is a liquid crystal panel, 2
3 is an exterior, 3 is a fixing metal plate, 4 is an adhesive, 5 is a circuit board for driving a liquid crystal panel, 6 is a connection connector for connecting the liquid crystal panel and a circuit board for driving a liquid crystal panel (hereinafter simply referred to as a connection connector), 7 shows the fixing sponge placed on the 8#-f2 side of the fixing screw. As is clear from Figure 1, in the conventional panel support structure of LCD televisions, the cushioning members for pressing the panel to support it are limited to only two sides on one side, and the earthquake resistance is not good. this. In the panel support structure of conventional LCD watches, which have basically the same structure as this, because the panel itself is small, such a support structure did not cause much trouble, but unlike LCD TVs, As the size of the panel increases,
Such a support structure poses a major problem in terms of anti-fi characteristics. In particular, LCD televisions are generally highly portable, and are important for earthquake resistance.

〔the purpose〕

The present invention is intended to solve these problems, and its purpose is to place a cushioning material on all or most of the four circumferences on both the upper and lower surfaces of the liquid crystal panel, thereby making the liquid crystal panel strong from both the upper and lower surfaces. The idea is to improve the seismic properties of the liquid crystal panel by inserting it in between.

〔overview〕

In a liquid crystal television device equipped with a liquid crystal panel for displaying television images, the panel support structure of a liquid crystal television according to the present invention is made of 81 rubber, chloroprene rubber, nitrile rubber, Another feature is that a cushioning material such as various types of sponge is placed on the liquid crystal panel, and the liquid crystal panel is firmly supported by being sandwiched from both the upper and lower sides.

〔Example〕

The present invention will be described in detail below based on examples.

FIG. 2 shows an example of a cross-sectional view of a panel support structure for a liquid crystal television according to the present invention. In FIG. 2, 11 is a liquid crystal panel, 12 is an exterior, 16 is a cushioning material A made of sponge,
i4 [Si rubber-like cushioning material B, 15 is a panel driving circuit board, 16 is a TJ connection connector, 17 is a panel fixing screw, and 18 is a panel fixing member. Furthermore, FIG. 3 is a top view showing the relative relationship between the liquid crystal panel 11 and the cushioning material A15, and is characterized in that the cushioning material A covers all four circumferences of the liquid crystal panel. The relationship between the liquid crystal panel and the buffering material B is also similar; the buffering material Bi covers all four circumferences of the liquid crystal panel.

In the embodiment shown in FIG. 2, by tightening the panel fixing member 18 to the external device 2 with the panel fixing screws 17, the liquid crystal panel 11 is firmly fixed while the cushioning materials A and B are pressed. Cushioning materials A and BF-1 cover all four circumferences of the liquid crystal panel, so to speak, the four circumferences are precisely identified, so when a shock is applied to the liquid crystal panel, the maximum stress generated within the liquid crystal panel can be measured. This makes it possible to reduce the vibration resistance and, in turn, improve the seismic properties of the liquid crystal panel.

〔effect〕

FIGS. 4 and 5 respectively show a mechanical model of a panel support structure of a conventional liquid crystal television, a deflection curve and a stress distribution curve when an impact is applied. Fig. 4 shows the case of square pin support, and Fig. 5 shows the case of firmly fixing two sides f'i. In Figures 4 and 5, (a) is a dynamic model, (1:+)f
'iXI'! 'lit direction deflection curve, (C) direction axial deflection curve, Cd) nX-axis direction stress distribution curve, (e) y
The axial stress distribution curve is shown. On the other hand, FIG. 6 shows a mechanical model in the case of the present invention in which all four sides are flatly fixed, and the deflection curve and stress distribution curve when an impact is applied, (a) to (θ
) has the same meaning as in FIGS. 4 and 5. In Figures 4 and 5, the deflection curve has a single curvature in at least one of the X and 7 axis directions, and the stress distribution is only positive, whereas in Figure 6, the It has three curvatures in both directions, and both positive and negative stress distributions appear.
Even if the same impact load is applied, the maximum stress value in the mechanical model in Figure 6 is much smaller than in Figures 4 and 5. Even a simple calculation shows a difference of more than four times. of things.

Since destruction is uniquely determined by whether the maximum stress value is greater than the limit stress value inherent to the object, from the perspective of such a mechanical model, according to the present invention, the four circumferences of the upper and lower surfaces of the liquid crystal panel Place cushioning material on all or most of the LCD panel and firmly support it by sandwiching it from both the top and bottom. This reduces the maximum stress generated within the core, making it difficult for the base to rupture, and as a result, impact resistance properties are improved. In addition, by sandwiching the liquid crystal panel mainly made of glass, which is a brittle material, with a material that has cushioning properties, it has the effect of protecting the brittle material that is weak against impact, thereby improving its impact resistance by 1.

[Brief explanation of drawings]

Fig. 1 - Conventional LCD TV panel support structure Fig. 2 - An example of a sectional view of a panel support structure of an LCD TV according to the present invention Fig. 3 (a), (b) - Liquid crystal panel and cushioning material A in the present invention Two examples of the plane relative positional relationship of Figure 4 (a) to (,) - Mechanical model of the panel support structure of a conventional LCD TV, deflection curve and stress distribution curve when impact is applied Figure 5 (a) to (e) ) - Mechanical model of the panel support structure of a conventional LCD TV, deflection curve and stress distribution curve when impact is applied. Deflection curve and stress distribution curve upon application of impact 1...Liquid crystal panel 2...Exterior 3...Metal plate for fixing 4...Adhesive 5...Circuit board for driving liquid crystal panel 6...Liquid crystal Sakitsugi connector 7 for connecting the panel and the circuit board for driving the liquid crystal panel... Fixing screw 8... Fixing sponge 11... Liquid crystal panel 12... External device 3... Cushioning material A 14... - Cushioning material B 15...Panel driving circuit board 16...Connector 17...Panel fixing screw 18...Panel fixing member or more Applicant: Soho Kozukosha Co., Ltd. (a) No. 3 Figure (b) (a) 6 [; 2; Fig. 5(b) t<=near→ , Fig. 5(C) Fig. 5, (cl) Fig. 5(e) Fig. 6(a) /,'7→ Fig. 6j (b) ゛ Fig. 6 (c) Figure 6 (Figure 6<e)

Claims (1)

[Claims] In a liquid crystal TV device equipped with a liquid crystal panel that displays television images, a cushioning material such as 81 rubber, chloroprene rubber, nitrile rubber, or various volatile sponges is placed on all or most of the four circumferences on both the upper and lower surfaces of the liquid crystal panel. A panel support structure for an LCD television, which is characterized by firmly supporting an LCD panel by sandwiching it from both sides.