CN206788524U

CN206788524U - A kind of backlight and display device

Info

Publication number: CN206788524U
Application number: CN201720733343.8U
Authority: CN
Inventors: 郭文
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2017-06-22
Filing date: 2017-06-22
Publication date: 2017-12-22
Anticipated expiration: 2027-06-22

Abstract

The utility model discloses a kind of backlight and display device.The backlight include framework, be arranged in the framework light guide plate, be arranged on the framework inside bottom surface face area source lamp bar, bottom surface, light guide plate and the area source lamp bar of the framework are provided with a corresponding at least through hole on the viewing area of the backlight, and the inside bottom surface face of the framework is provided with small frame wall in all through holes.The backlight is applied in the full screen display device that drills, and can realize the backlight effect of uniform in light emission.

Description

A kind of backlight and display device

Technical field

It the utility model is related to field of backlights, more particularly to a kind of backlight and display device.

Background technology

Display device generally comprises viewing area and non-display area, for the display devices such as mobile phone, flat board, non-display area It is mainly used in placing the electronic building bricks such as photographing module, mechanical key, fingerprint module and infrared sensor, therefore, display device Non-display area can not be too small, this allow for display device account for screen ratio it is not high.

Full screen display is always the pursuit of display technology field, and existing full screen display mainly has two methods realization：The A kind of mode is that the electronic building bricks such as photographing module, loudspeaker, mechanical key, fingerprint module and infrared sensor are removed or moved to On the back side or side of display device, the whole front of display device is used as viewing area；Second method is in display screen On by drill form make through hole, for placing the electronics group such as photographing module, mechanical key, fingerprint module and infrared sensor Part.For the display device of second method, the backlight used of being arranged in pairs or groups with it also must correspondingly make through hole, but It is that backlight is typically all using side entering light, if if drilling sets electronic building brick, light can be stopped by electronic building brick, Cause local dark space, uniform backlight effect can not be realized.

Utility model content

In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of backlight and display device.The backlight Source is applied in the full screen display device that drills, and can realize the backlight effect of uniform in light emission.

Technical problem to be solved in the utility model is achieved by the following technical programs：

A kind of backlight, including framework, be arranged in the framework light guide plate, be arranged on the inside bottom surface of the framework The area source lamp bar in face, bottom surface, light guide plate and the area source lamp bar of the framework are respectively provided with the viewing area of the backlight There is a corresponding at least through hole, the inside bottom surface face of the framework is provided with small frame wall in all through holes.

Further, the small frame wall is arranged on the inside bottom surface of the framework by integrated injection moulding or bonding method On face.

Further, the area source lamp bar include LED-baseplate, be arranged in the LED-baseplate some LED chips/ LED chip group, the light conversion film being covered in some LED chips/LED chip group.

Further, the part cabling of the area source lamp bar is provided with the LED-baseplate.

Further, the LED chip is one kind in red bluish-green LED chip, is included in the light conversion film and institute State fluorescent material and/or quantum dot that LED chip is complementarily shaped to white light.

Further, the LED chip group be red bluish-green LED chip in any two kinds of combination, the light conversion film Inside include the fluorescent material or quantum dot that white light is complementarily shaped to the LED chip.

Further, the LED chip group is the combination of red bluish-green LED chip, and the light conversion film is to turn without light Change the transparent mulch film of function.

Further, an at least optical film is provided with the exiting surface of the light guide plate, all optical films are in viewing area On to be provided with least one corresponding with least through hole in the bottom surface of the framework, light guide plate and area source lamp bar logical Hole.

Further, it is provided with anti-dazzling screen on the framework and small frame wall.

A kind of display device, including above-mentioned backlight.

The utility model has the advantages that：The backlight is provided with area source lamp bar on the bottom surface of its framework, Light is propagated from the bottom up, is finally uniformly projected from the exiting surface of the light guide plate, will not be blocked in the through hole, should In drilling full screen display device, the backlight effect of uniform in light emission can be realized.

Brief description of the drawings

Fig. 1 is the schematic diagram of backlight provided by the utility model；

Fig. 2 is the A-A sectional views of the backlight shown in Fig. 1；

Fig. 3 is enlarged drawing at the B of the backlight shown in Fig. 2；

Fig. 4 is the dorsal view of backlight provided by the utility model.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and examples.

Embodiment one

As illustrated in fig. 1 and 2, a kind of backlight, including framework 1, be arranged in the framework 1 light guide plate 2, be arranged on institute The area source lamp bar 3 in the inside bottom surface face of framework 1 is stated, bottom surface, light guide plate 2 and the area source lamp bar 3 of the framework 1 are in the backlight A corresponding at least through hole 8 is provided with the viewing area in source, the inside bottom surface face of the framework 1 is at all through holes 8 It is provided with small frame wall 7.

The backlight is provided with area source lamp bar 3 on the bottom surface of its framework 1, and light is propagated from the bottom up, finally from institute State and uniformly projected on the exiting surface of light guide plate 2, will not be blocked at the through hole 8, applied in the full screen display device that drills, The backlight effect of uniform in light emission can be realized.

An at least through hole 8 be used to placing the photographing module of display device, loudspeaker, mechanical key, fingerprint module and One or more in the electronic building bricks such as infrared sensor.

Some injecting hole integrated injection mouldings that the small frame wall 7 can be opened up on the bottom surface by the framework 1 are arranged on On the inside bottom surface face of the framework 1, or, it is arranged on by sticking double faced adhesive tape mode on the inside bottom surface face of the framework 1； The area source lamp bar 3 is pasted onto on the bottom surface of the framework 1 by heat-conducting glue 5 of the first double faced adhesive tape 5/ etc..

The framework 1 preferably uses the good metal material of metal material, especially heat conductivility, such as stainless steel, aluminium Alloy etc., contribute to the radiating of the area source lamp bar 3.

As shown in figure 3, the area source lamp bar 3 includes LED-baseplate 31, some LED being arranged in the LED-baseplate 31 Chip 32/LED chipsets 32, the light conversion film 33 being covered on some LED chip 32/LED chipsets 32.

The area source lamp bar 3 is no to use whole LED lamp finished product, but directly by the envelope of LED chip 32/LED chipsets 32 In LED-baseplate 31, all LED chip 32/LED chipsets 32 share one layer of light conversion film 33, without existing main flow list The accessories such as the metal binding line of LED lamp finished product, housing, die sinking cost are low；Between the LED chip 32/LED chipsets 32 Connection line is arranged in LED-baseplate 31, and reliability is higher；The area of the LED-baseplate 31 is big, is advantageous to radiate；The light Film 33 is changed in addition to light translation function, also with light mixing function, reduces the light mixing distance of light, is advantageous to lightening.

The light conversion film 33 is covered in the LED chip 32/LED chipsets 32 by way of hot pressing or stickup On.

The LED chip is one kind in red bluish-green LED chip, is included and the LED core in the light conversion film 33 Piece 32 is complementarily shaped to the fluorescent material and/or quantum dot of white light.

For example the LED chip 32 is blue-light LED chip, then include yellow fluorescent material in the light conversion film 33, realize Common white light in existing backlight, or, red green quantum dot is also mixed with the light conversion film 33, to improve the color of white light Thresholding, realize high colour gamut white light；Or the light conversion film 33 can not make in a manner of directly using red green quantum dot mixing With yellow fluorescent material, the blue-light LED chip directly excites red green quantum dot, realizes the white light in higher color domain.Similarly, the LED Chip 32 is red LED chip, and the light conversion film 33 can use blue phosphor+green fluorescence powder or blue phosphor+green quantum Point or blue quantum dot+green fluorescence powder or blue quantum dot+green quantum dot；The LED chip 32 is green LED chip, the light Change film 33 can use red fluorescent material+blue phosphor or red fluorescent material+blue quantum dot or red quantum dot+blue phosphor or Red quantum dot+blue quantum dot.

Or the LED chip group 32 be red bluish-green LED chip in any two kinds of combination, the light conversion film 33 Inside include the fluorescent material or quantum dot that white light is complementarily shaped to the LED chip group 32.

Such as the combination that the LED chip group 32 is blue-light LED chip+green LED chip, then the light conversion film 33 Inside include red fluorescent material, realize white light, or, include red quantum dot in the light conversion film 33, realize high colour gamut white light. Similarly, the LED chip group 32 is the combination of red LED chip+blue-light LED chip, and the light conversion film 33 can use green Fluorescent material or green quantum dot；The LED chip group 32 is the combination of green LED chip+red LED chip, the light conversion Film 33 can use blue phosphor or blue quantum dot.

Or the combination that the LED chip group 32 is red bluish-green LED chip, the light conversion film 33 are to turn without light The transparent mulch film of function is changed, i.e., does not contain any smooth transformational substance in described light conversion film 33.

As shown in figure 4, set in one side of the LED-baseplate 31 away from some LED chip 32/LED chipsets 32 There is wiring board 34；There are some solder joints, the LED-baseplate 31 passes through the sides such as SMT welding or ACF hot pressing in the LED-baseplate 31 Formula is connected with the wiring board 34, and passes through some solder joints in the LED-baseplate 31, the LED chip 32/LED chipsets Electrical connection is realized between 32 and wiring board 34.

The part cabling of the area source lamp bar 3 is provided with the LED-baseplate 31, it is and another on the wiring board 34 Part cabling forms whole cablings of the area source lamp bar 3, can so simplify the cabling design on the wiring board 34, reduce The difficulty of cabling design.

Protection sheet 9 is pasted with the outer side bottom surface face of the framework 1, the protection sheet 9 covers the He of wiring board 34 Join domain between LED-baseplate 31, as insulation and protection.

An at least optical film 4, in general, the exiting surface of the light guide plate 2 are provided with the exiting surface of the light guide plate 2 On be disposed with diffusion barrier, lower bright enhancement film and upper bright enhancement film, certainly, the type and quantity of the optical film 4 should specifically be needed , should not be as limit depending on asking；All optical films 4 are provided with and the bottom surface of the framework 1, light guide plate 2 on viewing area A corresponding at least through hole 8 with least through hole 8 in area source lamp bar 3.

Anti-dazzling screen 6 is provided with the framework 1 and small frame wall 7, the anti-dazzling screen 6 is two-sided to be respectively provided with viscosity, and it is backwards to institute The one side for stating framework 1 or small frame wall 7 is black, is black, white or other face towards the one side of the framework 1 or small frame wall 7 Color.

Embodiment two

A kind of display device, including a kind of described backlight of embodiment.

Embodiment described above only expresses embodiment of the present utility model, and its description is more specific and detailed, but simultaneously Therefore the limitation to the utility model patent scope can not be interpreted as, as long as using equivalent substitution or the form of equivalent transformation institute The technical scheme of acquisition, it all should fall within the scope of protection of the utility model.

Claims

A kind of 1. backlight, it is characterised in that：Including framework, the light guide plate being arranged in the framework, it is arranged on the framework Inside bottom surface face area source lamp bar, the visible area of bottom surface, light guide plate and the area source lamp bar of the framework in the backlight A corresponding at least through hole is provided with domain, the inside bottom surface face of the framework is provided with small frame in all through holes Wall.
2. backlight according to claim 1, it is characterised in that：The small frame wall passes through integrated injection moulding or stickup side Formula is arranged on the inside bottom surface face of the framework.
3. backlight according to claim 1, it is characterised in that：The area source lamp bar includes LED-baseplate, is arranged on institute State some LED chips/LED chip group in LED-baseplate, the light being covered in some LED chips/LED chip group conversion Film.
4. backlight according to claim 3, it is characterised in that：The area source lamp bar is provided with the LED-baseplate Part cabling.
5. backlight according to claim 3, it is characterised in that：The LED chip is one in red bluish-green LED chip Kind, include the fluorescent material and/or quantum dot that white light is complementarily shaped to the LED chip in the light conversion film.
6. backlight according to claim 3, it is characterised in that：The LED chip group is appointing in red bluish-green LED chip Two kinds of combination of meaning, include the fluorescent material or quantum dot that white light is complementarily shaped to the LED chip in the light conversion film.
7. backlight according to claim 3, it is characterised in that：The LED chip group is the group of red bluish-green LED chip Close, the light conversion film is the transparent mulch film without light translation function.
8. backlight according to claim 1, it is characterised in that：An at least light is provided with the exiting surface of the light guide plate Learn film, all optical films be provided with viewing area with the bottom surface of the framework, light guide plate and area source lamp bar extremely The corresponding at least through hole of a few through hole.
9. backlight according to claim 1, it is characterised in that：Anti-dazzling screen is provided with the framework and small frame wall.
A kind of 10. display device, it is characterised in that：Including any described backlight in claim 1-9.