More efficiency / cost advantages embedded touch panel will be popular
Author:Dawei Time:2021-06-09 13:35 Browse(266)
The embedded touch panel has the advantages of light weight, good light transmission and simplified supply chain, Its development has always been concerned.

More efficiency / cost advantages embedded touch panel will be popular

following the well-known examples of Apple's iPhone using in cell touch panel, Samsung's Galaxy smart phone using AMOLED on cell touch panel and so on.
recently, Taiwan panel manufacturers have also made significant progress in LCD on cell touch panel, Its products have been introduced into smart phone applications and have been mass produced.
# o) b9c (v. y4 D4 f6 a6 b: \; V2 B. ]" b  z3 aProcess integration is difficult, panel yield needs to be improved2 c% a$ E2 a" j+ n* V* l; ~! Q% K: W6 L3 M.
E7 E / O! I5 / 7? Embedded touch screen has three advantages: firstly, the embedded touch screen does not need glass or film substrate on the outside of the panel, Therefore, the thickness of the panel can be reduced; secondly, the glass or film substrate outside the panel can be reduced to reduce the ambient light reflection, and if the existing indium tin oxide (ITO) layer inside the panel is used as the touch sensor, the light penetration rate can be higher than that of the external touch panel, so as to improve the display performance; thirdly, if the system manufacturer adopts the embedded touch panel, there is no need to purchase another touch sensor,It can simplify purchasing or supply chain management.
%} - F9 U & x $G +\' G0 B% S: [5 F3 GMoreover.
although it is quite difficult to integrate the touch sensor into the existing panel process, the yield of the embedded touch panel is low and the cost is high at the initial stage of development, but if we can break through the bottleneck of the process and effectively improve the yield, the embedded touch panel can save the materials of the external touch sensor, In terms of cost, it still has considerable advantages.
under this background.
panel manufacturers have invested in the development of embedded touch panel& A3 t3 C8 t+ g. v2 k! A: J0 w" @4 R5 J (i5 s * H8 R4 n) seizing the high-level market, in cell supply stability is the key! E1 E & ~. Z / h% K8 Q2 B9 M7 V2 p1 J8 L $C4 a% I-h embedded touch panel can be divided into in cell and on cell.
in cell is to make touch sensor on TFT array, on cell is to make touch sensor on CF glass, and touch sensor is to make touch sensor on hybrid architecture of TFT array and CF glass0 P.
P9 P# N) Z. t. A8 q$ `, `1 b% ^Due to the high difficulty of in cell touch technology, there are challenges in production yield and touch IC design,Therefore, there are still few imported brands and terminal models, only apple, Sony, HTC and Google adopt them.
specifically speaking.
at present, the mass-produced in cell touch panel is mainly based on the technology developed by Apple or Sony. Apple's iPhone 5 is produced by LG, Japan display and sharp, Sony's technology was produced by JDI after its panel division was merged with Toshiba's and Hitachi's panel divisions to form Japan display (hereinafter referred to as JDI)7 X2 F( J9 x/ r! N.
C' u- P6 N2 C) fMobile phone is a Chinese JDI brand. The In-Cell touch panel (HD resolution) has been listed in the reference design of the In-Cell solution for the smartphone. It shows its intention to import the product into the Chinese mainland brand..
has a very attractive attraction for the Chinese mainland brand that has already designed "ultra-thin body" products. However, whether the price and supply situation are stable or not is the focus of follow-up observation; C2 T8 Q6} 7 e) e2 n4 K2 `6 w/ q/ ZI'e. @ "Z.
Q6 s! P7 V on cell touch technology is not only used in LCD panel, but also used in AMOLED panel.
Samsung display uses the encapsulation glass of AMOLED panel.
Samsung display uses the encapsulation glass of AMOLED panelSince 2012, the AMOLED on cell touch panel has been imported into the Galaxy series of Samsung high-end smart phones, and has become the main shipping force of on cell touch panel.
: ^ (k "'; P-J: m) K.
u' ^% j5 J6 }+ nIn terms of LCD on cell touch panel, Taiwan panel manufacturers are actively developing the field.
for smart phone applications.
Taiwan panel manufacturers consider that the manufacturing process (bridge insulation) of "single-sided and double-layer" touch sensors is relatively complex, and the time to improve the yield rate may be slow. In order to seize the business opportunities, In addition, we have cooperated with touch IC manufacturers to develop low and medium level solutions with "single-sided single-layer" touch sensor and touch IC, which can support two to five finger multi touch.
* [% Q8 K # Q0 Q - X.
R% d! N0 w! o$ p- L$ C. A, yBecause the price of on cell touch panel solutions from Taiwan's panel manufacturer is quite competitive compared with that of film touch panel solutions, it is an incentive to purchase low-cost smart phone products with high sensitivity to component costs, Since the fourth quarter of 2013,
the on cell touch panel of Taiwan panel manufacturers has been in mass production with customers' products.
7 W $S0?.}; n $X; A5 h  s' ?- qHowever,
theAt present, the number of on cell touch panel suppliers (including panel and touch IC) of Taiwan panel manufacturers is still small, and some products are only supplied by a single manufacturer. Considering the stability of supply, system manufacturers can not help but hold a conservative attitude towards importing on cell touch panel into their products.
on the other hand,
film touch panel manufacturers stick to the market share, It also reduces the price to compete with the manufacturers of on cell touch panel, making the popularity of on cell touch panel still quite challenging in the short term.
; I / Q9 g (W. H & X "E1 W5_ " ^# w$a! \ "w9e; Q1 @ 7k9x" D is not only used in smart phone applications.
Taiwan panel manufacturers have also invested in the development of on cell touch panels for tablet and notebook applications.
in tablet applications.
the panel sizes are 7-inch and 8-inch, and single-layer and double-layer touch sensors are adopted by manufacturers. According to the current schedule, it is expected to be mass produced with customers' products in 2014.
. Q $t) ~ 6 l6 u! ?% e$ [- j.
?- i3 x# _ ( j! w& `( N6 ~% MIn terms of the laptop, due to the strict touch performance requirements of Microsoft specifications, the touch sensor has to adopt a single-sided and double-layer architecture, which is more difficult to manufacture. In addition, the panel size has been expanded to 14 "and 15.6", which makes its production more challenging. The actual development situation remains to be observed4 \: D- Q1 d& I6 k*[1 W # R (I-R: Y1 L) Rio Tinto LCD on cell market IC / panel factory to work together # H 'A6 u # n $r! T; O3 | 5]6 P  d/ w& U/ `7 Y( uOn cell touch (AMOLED on cell is unique to Samsung.)Therefore, the following analysis takes LCD on cell as the category). Obviously, the partners of touch IC manufacturers have changed from touch sensor manufacturers and touch module manufacturers to panel manufacturers.
~% u; {% X) [7 v1 X8 l% E9 K3 Q9 K, D touch IC manufacturers develop products according to the structure, pattern and other specifications of on cell touch sensor of panel manufacturer. After the IC is completed and adjusted with on cell panel, the solution includes on cell touch panel and touch IC, which are promoted to system customers together.
/ N & F & j [! C3 L1 h $S6 S]Although the touch IC and driver IC manufacturers of on cell touch panel cooperate with the panel manufacturers, the difference is that the system manufacturers usually do not lead the purchasing decision of driver IC, but leave it to the panel manufacturers; the touch IC is a key component of human-computer interface related to user experience, In other words,
in the field of on cell touch, although touch IC manufacturers cooperate closely with panel manufacturers, their customers are still system manufacturers (just like plug-in touch), so it is very important to obtain the recognition of system manufacturers.
% {.
F4 e * P0 V4 m + V/ k& c8 P% @% k" L' kSince on cell touch products have not been put into the market for a long time, system manufacturers have little application experience. If they want to import on cell touch panel, they should give priority to the touch IC recommended by panel manufacturers,However,
as more panel manufacturers and touch IC manufacturers invest in on cell touch to increase the supply of related products, and system manufacturers continue to accumulate application experience, it is expected that on cell touch will develop like plug-in touch in the future, It has evolved into a situation where touch panel and touch IC can be freely matched.
: C & B0 x + J.
I # P # S $I:]$y $U "^ 3 I | R, Q2 / 2 x in cell market, touch / drive ICs compete for each other! H2 I # n - Q4 F4 J $\! P; e, ^( q! p- PIn terms of in cell (including in cell hybrid) touch, its supply chain relationship is significantly different from plug-in touch and on cell touch.
because in cell touch panel takes touch IC and drive IC into consideration in the same system.
each panel factory has its own design technology, so in cell touch panel can only be matched with specific touch IC, System manufacturers can not choose touch panel and touch IC individually, but can only consider and check the solutions proposed by suppliers as a whole.
this also makes in cell touch IC like drive IC.
panel manufacturers are not only partners of IC manufacturers, but also more direct customer relationships.
+ X: Z + g.
m, \) Q Z0, y; t, e'~ 8 ~, D2 C9 ~ 2 O:}% t for IC manufacturers, in the field of on cell touch,Touch IC and drive IC are independent of each other, and the motivation to provide the above IC products at the same time is mainly to increase the revenue and bargaining power of a single customer.
however, they have stepped into the field of in cell touch.
because touch IC and drive IC are interrelated, and even specifications are mutually selective, it can be said that they are "both cooperative and antagonistic", so no matter touch IC manufacturers or drive IC manufacturers, Both have stronger intention to master both at the same time.
- U + A5 N8 H8 F.
y # G2 w( l$ g% K$ i3 t7 S# ~! Q7 eIn this way, the complex tripartite relationship among panel factory, touch IC factory and drive IC factory can be transformed into simple panel factory and IC factory; at the same time, the specifications of the two kinds of IC can be slightly adjusted to increase the flexibility of design under the overall requirements of display and touch.
. N2 O8 W1 ^ 1 A3 i9? 2 R) Q%The development of o 'g' x; J7 D8 B # H% d0 O8 t LCD on cell depends on the input of suppliers* Y' h4 w6 e5 T; J/ ?7 F 'J $' - P! T * r Taiwan panel manufacturers have developed low -, medium -, and high-level (LCD) on cell touch panel solutions for smart phone applications, covering one to more than five touch points. They hope to meet the demands of thinner thickness, comparable touch performance, and competitive price, Grab the mainstream market of external touch panel touch panel.
the above party has won the Chinese mainland brand and white label manufacturers to import.
, and has been listed.
since the fourth quarter of 2013..
F: G+ ]- U5 J" Z. d7 H3 i1 h; e9 V. b; D& C  Y( pAt present, there are still few suppliers of on cell touch panel and touch IC, and some of them are only supplied by a single manufacturer. However, there are many suppliers related to film touch panel. Touch panel and touch IC can be purchased freely, and at the same time, the price can be adjusted to meet the competition of on cell. Therefore, many system manufacturers prefer to use on cell touch panel, Therefore,
in the short term, it will not be easy for on cell touch panel to achieve significant market share in the field of smart phone applications.
) j'z-p8 m! ^ $V1 g.
{w * m / U1 Z in cell supply chain closed, IC / panel factory sales difficult to break through a% Y & Q4 N9 D & Q4 Q6 {:?. M#Compared with on cell touch panel, the supply chain relationship of in cell touch panel is expected to develop towards plug-in touch (except for panel manufacturers converting to touch module manufacturers), while that of in cell touch panel is significantly different from plug-in touch panel and on cell touch panel, It includes touch IC manufacturers taking panel manufacturers as customers, touch IC can only match the panels of specific customers, and touch IC and driver IC are interrelated# Y/ f.
l( F- J; U% ^+ L5 W7 I0 h # e! Q & M2 K9 v. in cell touch IC can only be used with specific customer's panel, and the required technology and manufacturing capability will be more difficult than on cell touch IC,The in cell touch panel and touch IC suppliers will be limited, and the in cell touch panel will not be easy to develop as diversified as on cell, but will form a relatively closed industrial chain.
1 "Y1 W;] 1? 9 |; E7 g * B9 V6 F + D4 Q (Z (~ ~ z) is also due to the high difficulty of in cell touch technology and manufacturing.
compared with plug-in and on cell touch, it costs more in the early stage and takes a longer time to improve yield. If it can't accumulate more sales, it will be difficult to make profits.
for panel manufacturers and IC manufacturers investing in the field of in cell touch, how to get a strong outlet to the sea, In addition to the technical layout, it is a more important topic.
5 Z * m / C (? 8 E) (M. L (v.
5 Z * m / C (? 8 E) (M. L (v.
Related topics