Direct type backlight module structure
A backlight module, direct type technology, used in optics, nonlinear optics, instruments, etc., can solve the problems of low brightness and affect the image display effect of the module, so as to eliminate "black edges, increase process complexity, and achieve brightness". The effect of a uniform transition
Pending Publication Date: 2022-03-25
SHENZHEN SUIJING OPTOELECTRONICS CO LTD
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Problems solved by technology
The spacing of the LED lamp beads in each area on the substrate of a conventional direct-lit backlight module is uniform. Due to the existence of the edge of the backlight panel and no LED light-emitting units outside the edge area, when it is used as a light source for a liquid crystal display module, it will cause The brightness of the edge area of the module is lower than that of the center area, which is commonly known as the "black edge" phenomenon, which affects the image display effect of the module. For this reason, we propose a direct-type backlight module structure
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0026] see Figure 1-3 , a direct-type backlight module structure, including a substrate 1, on which multiple groups of LED light sources 2 are arranged, and the LED light sources 2 are electrically connected through the substrate; multiple groups of LED light sources 2 are arranged in a matrix on the substrate 1, and The number of vertical arrangements and the number of horizontal arrangements are usually not less than ten groups.
[0027] according to figure 1 In the ...
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The invention relates to the field of backlight modules, and discloses a direct type backlight module structure which comprises a substrate, and an LED light source is arranged on the substrate; wherein the distances between the LEDs longitudinally arranged in the direction from the edge area to the center area are P1, P2, P3,..., Pn in sequence, the distance between the LEDs longitudinally arranged in the center area is P0, and the distances are adjusted to be P1lt; p2lt; P2lt; p3lt; P3t; t,..., t; pnlt; p0; the distances between the LEDs transversely arranged in the direction from the edge area to the center area are D1, D2, D3,..., Dn in sequence, the distance between the LEDs transversely arranged in the center area is D0, and the distances are adjusted to enable D1 < lt >; d2lt; d3 < lt >; t,..., t; dnlt; Dnlt; d0; as the LED spacing of the marginal area is smaller than that of the central area, the brightness of the marginal area is improved, and the gradual change of the LED spacing of the marginal area enables the brightness transition to be uniform. According to the direct type backlight module structure, the brightness uniformity of the direct type backlight module can be improved only by specially and optimally designing the LED spacing in the edge area of the substrate and adjusting the LED spacing according to different application requirements without additional processes.
Description
technical field [0001] The invention relates to the field of backlight modules, in particular to a direct-type backlight module structure. Background technique [0002] In the current era of science and technology, various electronic devices, such as TVs, computers, tablets, etc., need to be equipped with display modules with display functions; a commonly used display module is LCD, that is, liquid crystal display module: the liquid crystal display module itself It does not emit light, and the backlight module needs to provide a light source; the liquid crystal display module is to place a liquid crystal cell in the parallel glass substrate, and set a TFT (thin film transistor) on the lower glass substrate, and control the rotation direction of the liquid crystal molecules by changing the TFT signal and voltage, and then Control the display effect of the liquid crystal display module; the display effect of the liquid crystal display module largely depends on the backlight mo...
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IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133611
Inventor 徐涛张羽升姜涛张勇郑汉武郑林
Owner SHENZHEN SUIJING OPTOELECTRONICS CO LTD